CN112413913B

CN112413913B - Geothermal in-situ thermal-voltaic power generation device for deep well heat exchange sleeve

Info

Publication number: CN112413913B
Application number: CN202011425233.8A
Authority: CN
Inventors: 李碧雄; 莫思特
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2024-08-20
Anticipated expiration: 2040-12-09
Also published as: CN112413913A

Abstract

Provided is a geothermal in-situ thermal-voltaic power generation device for a deep well heat exchange sleeve. Relates to the field of geothermal power generation. The device consists of a water inlet section, a commutator, a sleeve heat exchange section, a top thermal-voltage power generation module and a turbine power generation module. The water inlet section, the reverser and the sleeve heat exchange section are all underground and are sequentially butted in the sequence from deep ground to the ground surface; the top thermal-voltage power generation module is partially installed underground, partially installed on the ground, and the turbine power generation module is installed on the ground. The invention adopts two power generation modes of a top thermal-volt power generation module and a turbine generator. The electric energy of the turbine generator is directly output as a turbine power supply, all pipe wall type thermal-voltage power generation basic module power supplies are output in parallel, and the output power supply is called pipe wall thermal-voltage power supply. The device meets the deep in-situ geothermal power generation requirement of construction requirements, and in the in-situ geothermal power generation process, geothermal water is recharged in situ, and the recharging water level is far lower than the heat extraction water level; two power generation technologies are adopted, so that the power generation efficiency is improved.

Description

Geothermal in-situ thermal-voltaic power generation device for deep well heat exchange sleeve

1. Technical field

The invention relates to the field of geothermal power generation, in particular to a deep well heat exchange sleeve geothermal in-situ thermal power generation device.

2. Background art

Geothermal is a novel clean energy source, is widely distributed and has rich reserve. The geothermal energy is used for generating electricity and taking heat, the pollution generated is little, the energy source is renewable, and the unit cost of generating electricity and taking heat is low. Therefore, geothermal power generation heat extraction is increasingly being focused and utilized. The application number CN202010112988.6 'an in-situ geothermal power generation system' provides an in-situ geothermal power generation system, which comprises a heat pipe, a thermoelectric power generation device and a magnetic suspension power generation device. The heat pipe is directly buried in the ground, the heat pipe is positioned at a geothermal source, on one hand, the thermoelectric power generation device positioned at the lower section of the heat pipe can directly convert geothermal energy into electric energy, and on the other hand, the upward vapor state working medium formed in the process of changing the phase of the circulating working medium into the gaseous state working medium can drive the magnetic suspension power generation device positioned at the middle part of the heat pipe to convert the geothermal energy into mechanical energy and then into electric energy, and the heat pipe has the advantages of geothermal in-situ power generation, low energy loss, high power generation efficiency and the like. Application number: CN201711393103.9 "integrated system of in-situ geothermal thermoelectric power generation device" provides an integrated system of in-situ geothermal thermoelectric power generation device, which is composed of an outermost protective layer, a high heat-conducting gel layer in the middle for heat transfer, and a cold water circulation pipe in the innermost layer. The thermoelectric device has no mechanical rotation part, works without noise, directly converts heat energy into electric energy, does not generate mechanical energy loss, and can perform thermoelectric conversion power generation at different grade heat sources such as deep ground, surface hot springs and the like. Although the above applications have unique advantages, the following common problems exist:

(1) The construction requirement of the deep geothermal well is not considered;

(2) Geothermal water recharge is not considered.

3. Summary of the invention

The invention aims to overcome the defects of the prior art and provides a geothermal in-situ thermal power generation device for a deep well heat exchange sleeve. The device meets the in-situ geothermal power generation requirement of construction requirements, and geothermal water is recharged in-situ in the in-situ geothermal power generation process.

The aim of the invention is achieved in that: the device consists of a water inlet section, a commutator, a sleeve heat exchange section, a top thermal-voltage power generation module and a turbine power generation module, and the devices are sequentially connected in a butt joint manner from deep ground to the ground surface. The water inlet section, the reverser and the sleeve heat exchange section are all underground, the top thermal-voltage power generation module is partially installed on the ground, and the turbine power generation module is installed on the ground.

The water inlet section is formed by connecting a plurality of water inlet pipes, one end of each water inlet pipe is processed into a water inlet external thread, and the other end of each water inlet pipe is processed into a water inlet internal thread; the external threads at the two ends are equal to the internal threads in major diameter, minor diameter and thread pitch, and adjacent water inlet pipes are screwed and connected through the external threads and the internal threads at the two ends to form the required length; the lowest part of the water inlet section is a recharging inlet, and the highest part is a top end interface of the water inlet section; the water inlet section top end connector is a water inlet external thread, the recharging inlet is a water inlet internal thread, and the water inlet section top end connector is tightly connected with the water inlet pipe connecting thread of the water inlet section connecting connector of the commutator through screwing.

The commutator is formed by connecting three parts of a water inlet section connecting port, four recharging water communicating vessels and a sleeve heat exchange section connecting interface. The commutator guides recharging water between the outer tube and the inner tube of the sleeve heat exchange section to the connecting port of the water inlet section through the recharging water communicating vessel, the recharging water is led into the water inlet section through the screwing connection with the external thread of the water inlet at the top end of the water inlet section, and the recharging water is led into the ground through the recharging inlet at the bottommost end of the water inlet section.

The sleeve heat exchange section consists of an axial flow water pump section, a sleeve heat exchange section connector and a sleeve heat exchange section pipeline, wherein the sleeve heat exchange section connector is connected with the adjacent sleeve heat exchange section pipeline and is connected into any length according to the requirement.

The sleeve heat exchange section pipeline consists of a sleeve heat exchange section inner pipe and a sleeve heat exchange section outer pipe; inner tube of sleeve heat exchange section and sleeve the lengths of the outer tubes of the heat exchange sections are equal, let its length be Hn.

The sleeve heat exchange section connector consists of a sleeve heat exchange section outer tube connector, a sleeve heat exchange section inner tube connector and a sleeve heat exchange section clamping piece; the sleeve heat exchange section clamping piece is used for fixing the axle center between the sleeve heat exchange section outer tube connector and the sleeve heat exchange section inner tube connector; the sleeve heat exchange section inner pipe connector is adjacent to the sleeve heat exchange section inner pipe, and the sleeve heat exchange section outer pipe connector is connected with the adjacent sleeve heat exchange section outer pipe.

The axial flow water pump section is composed of a sleeve heat exchange section inner pipe and a well submersible pump, the well submersible pump is arranged in the middle of the sleeve heat exchange section inner pipe, and a sealing ring is used for sealing the axial flow water pump between a well submersible pump suction pipe and the sleeve heat exchange section inner pipe.

The top thermal-voltage power generation module is composed of a pipe wall type thermal-voltage power generation module and a top heat exchange module.

The top thermal-volt power generation module is composed of a pipe wall type thermal-volt power generation section and a top heat exchange module. By using

The pipe wall type thermal-voltage power generation section is composed of pipe wall type thermal-voltage power generation basic modules.

The pipe wall type thermal-voltage power generation base module consists of a pipe wall type thermal-voltage power generation base module shell, a pipe wall type thermal-voltage power generation module, a pipe wall type thermal-voltage power generation base module inner layer, a thermal-voltage module support frame and a pipe wall type thermal-voltage power generation base module sealing ring.

The top heat exchange module comprises a heat exchange connecting pipe, a bottom heat exchange joint and a top heat exchange joint.

The turbine power generation module adopts an ORC generator, and a working medium output by a working medium pump of the generator is input into a turbine working medium inflow pipe. The turbine working medium outflow pipe outputs the heated working medium and is connected to the working medium input interface of the expander of the ORC generator.

The water inlet section connecting port of the commutator is composed of a water inlet section connecting shell and a recharging water connecting top cover; the water inlet section connecting shell is made of metal materials and is of a tubular structure, a water return connecting top cover is welded on the upper side, and water inlet pipe connecting threads are machined on the lower side; the water inlet pipe connecting screw thread is an internal screw thread and is screwed with the water inlet external screw thread of the water inlet pipe.

The recharging water connector is made of metal materials, the outside is a solid body, namely a main body fan ring column, the inside is hollowed out to be a hollowed out fan ring column, and the top surface of the main body fan ring column is the top surface of the recharging water connector; the bottom surface of the main body fan ring column is called as and recharging the bottom surface of the water communicating vessel.

The sleeve heat exchange section connecting interface consists of a sleeve heat exchange section interface bottom plate, a sleeve heat exchange section outer pipe interface and a sleeve heat exchange section inner pipe interface, wherein the sleeve heat exchange section outer pipe interface and the sleeve heat exchange section inner pipe interface are welded on the sleeve heat exchange section interface bottom plate, and the welding position is sealed.

The bottom plate of the interface of the sleeve heat exchange section is disc-shaped, and the radius of the disc is the same as that of the recharging water connection top cover and is Ra; the upper side is uniformly distributed with four hollow double-pipe heat exchange section recharging water inlets; the shape and the size of the recharging water inlets of the four sleeve heat exchange sections are the same as those of the recharging water communication interfaces of the recharging water connection top cover, and the hollowed-out position is also the same as that of the recharging water communication interfaces of the recharging water connection top cover.

The outermost side of the sleeve heat exchange section joint bottom plate is a sleeve heat exchange section outer pipe joint welding part for welding a sleeve heat exchange section outer pipe joint; the middle of the interface bottom plate of the sleeve heat exchange section is hollowed into a round shape, the hollowed area is called a sleeve heat exchange section geothermal water inlet, and the radius of the sleeve heat exchange section geothermal water inlet is set to be r2; the outer side of the geothermal water inlet of the sleeve heat exchange section is a welded joint of the inner pipe of the sleeve heat exchange section.

The outer pipe joint of the sleeve heat exchange section is of a tubular structure, a metal material is adopted, the outer radius is the same as the radius of the bottom plate of the joint of the sleeve heat exchange section, ra is adopted, the inner radius R6 is set, and the inner radius R6 is larger than the outer circle radius R1 of the cross section of the recharging communication vessel; the lower edge is welded with the bottom plate of the interface of the sleeve heat exchange section, the upper edge is processed into an internal thread called as the internal thread of the interface of the outer tube of the sleeve heat exchange section, and the internal thread is screwed with the outer tube of the sleeve heat exchange section; setting the height of an outer tube interface of the sleeve heat exchange section as H1; the height of the internal thread of the outer pipe joint of the sleeve heat exchange section is H2, the minor diameter of the internal thread is 2r4, and r4 is larger than the internal radius r6 of the outer pipe joint of the sleeve heat exchange section.

The inner pipe joint of the sleeve heat exchange section inner pipe joint is of a tubular structure, adopts metal materials, has the same inner radius as the radius of the geothermal water inlet of the sleeve heat exchange section on the base plate of the sleeve heat exchange section joint, and has the r2 and the r5 outer radius; the lower edge is welded with the bottom plate of the interface of the sleeve heat exchange section, and the upper edge is processed into external threads, which are called external threads of the interface of the inner tube of the sleeve heat exchange section, and the external threads are screwed with the inner tube of the sleeve heat exchange section; the height of the inner pipe interface of the sleeve heat exchange section is the same as that of the outer pipe interface of the sleeve heat exchange section, and H1 is adopted; the height of the external thread of the inner pipe joint of the sleeve heat exchange section is the same as that of the internal thread of the outer pipe joint of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread is 2r3.

The sleeve heat exchange section pipeline is divided into an inner sleeve heat exchange section pipe and an outer sleeve heat exchange section pipe.

The inner pipe of the sleeve heat exchange section is of a tubular structure and is made of a material with low heat conductivity coefficient and high elastic modulus, and the inner radius of the inner pipe of the sleeve heat exchange section is the same as the inner radius of the interface of the inner pipe of the sleeve heat exchange section and is r2; outer radius of inner tube of sleeve heat exchange section and sleeve the outer radius of the inner pipe interface of the heat exchange section is the same, r5; the two ends of the inner tube of the sleeve heat exchange section are processed into internal threads, called as internal threads of the inner tube of the sleeve heat exchange section, which are matched with external threads of the inner tube interface of the sleeve heat exchange section; the inner pipe of the lowest sleeve heat exchange section is screwed with the outer thread of the inner pipe interface of the sleeve heat exchange section through the inner thread of the inner pipe of the sleeve heat exchange section, and the sleeve heat exchange section and the inner pipe interface are combined into a whole.

The outer tube of the sleeve heat exchange section is of a tubular structure and is made of a metal material, the inner radius of the outer tube of the sleeve heat exchange section is the same as the inner radius of the joint of the outer tube of the sleeve heat exchange section, and r6 is the inner radius; outer radius of outer tube of sleeve heat exchange section and sleeve the outer radius of the outer tube interface of the heat exchange section is the same, is Ra; the two ends of the outer tube of the sleeve heat exchange section are processed into external threads, called external threads of the outer tube of the sleeve heat exchange section, which are matched with internal threads of the outer tube interface of the sleeve heat exchange section; the outer tube of the lowest sleeve heat exchange section is screwed with the inner thread of the outer tube interface of the sleeve heat exchange section through the outer thread of the outer tube of the sleeve heat exchange section, and the sleeve heat exchange section and the inner tube interface are combined into a whole.

The sleeve heat exchange section connector consists of a sleeve heat exchange section outer tube connector, a sleeve heat exchange section inner tube connector and a sleeve heat exchange section clamping piece.

The sleeve heat exchange section inner pipe connector is used for connecting the adjacent sleeve heat exchange section inner pipes, is tubular and is made of a material with low heat conductivity coefficient and high elastic modulus; the inner radius of the inner tube connector of the sleeve heat exchange section is the same as the inner radius of the inner tube interface of the sleeve heat exchange section and is r2; the outer radius of the inner tube connector of the sleeve heat exchange section is the same as the outer radius of the inner tube connector of the sleeve heat exchange section, r5; external threads are machined at two ends of the inner tube connector of the sleeve heat exchange section and are called as external threads of the inner tube connector of the sleeve heat exchange section and matched with the internal threads of the inner tube of the sleeve heat exchange section; the height of the external thread of the inner tube connector of the sleeve heat exchange section is the same as that of the internal thread of the outer tube interface of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread of the inner tube connector of the sleeve heat exchange section is 2r3.

A sleeve heat exchange section inner tube connector support body is arranged between the external threads of the sleeve heat exchange section inner tube connectors at the two ends; let the inner tube connector support body height be h3, then h3 be greater than sleeve pipe heat exchange section fastener height h1.

Four inner pipe clamping grooves of the sleeve heat exchange section are uniformly distributed on the inner pipe connector support body of the sleeve heat exchange section and are used for being embedded with clamping pieces of the sleeve heat exchange section; the pipe clamping groove in the sleeve heat exchange section is hollowed out according to the shape of the pipe clamping piece in the sleeve heat exchange section.

The sleeve heat exchange section outer tube connector is used for connecting adjacent sleeve heat exchange section outer tubes, is tubular and is made of metal materials; the inner radius of the outer tube connector of the sleeve heat exchange section is the same as the inner radius of the outer tube connector of the sleeve heat exchange section, and r6 is the same. The outer radius of the outer tube connector of the sleeve heat exchange section is the same as the outer radius of the outer tube connector of the sleeve heat exchange section, and is Ra; the two ends of the outer tube connector of the sleeve heat exchange section are processed into inner threads, called as inner threads of the outer tube connector of the sleeve heat exchange section, which are matched with the outer threads of the outer tube of the sleeve heat exchange section; the height of the internal thread of the outer tube connector of the sleeve heat exchange section is the same as that of the internal thread of the outer tube interface of the sleeve heat exchange section, H2 is adopted, and the minor diameter of the internal thread of the outer tube connector of the sleeve heat exchange section is 2r4.

A sleeve heat exchange section outer tube connector support body is arranged between the internal threads of the sleeve heat exchange section outer tube connectors at the two ends; let the outer tube connector support body height be h3, then h3 be greater than sleeve pipe heat exchange section fastener height h1.

Four sleeve heat exchange section outer pipe clamping grooves are uniformly distributed on the sleeve heat exchange section outer pipe connector support body and are used for embedding sleeve heat exchange section clamping pieces; the sleeve heat exchange section outer pipe clamping groove is hollowed out according to the shape of the sleeve heat exchange section outer pipe clamping piece.

The sleeve heat exchange section clamping piece consists of an outer pipe clamping piece, an inner pipe positioning piece, an outer pipe positioning piece and an inner pipe clamping piece of the sleeve heat exchange section. The outer pipe clamping piece is columnar with an arc section, and the columnar height is h1; the radius of the arc is larger than the inner radius r6 of the inner radius of the outer tube of the sleeve heat exchange section and slightly smaller than r4; the section of the inner pipe clamping piece is in an arc column shape, and the column height is h1; the radius of the arc is larger than r3 and slightly smaller than the outer radius r5 of the inner tube of the sleeve heat exchange section; the two sides of the inner and outer tube locating plates are respectively welded with the outer tube clamping and fixing plate of the sleeve heat exchange section and the inner tube clamping and fixing plate of the sleeve heat exchange section, so that the inner and outer tube locating plates, the outer tube clamping and fixing plate of the sleeve heat exchange section and the inner tube clamping and fixing plate of the sleeve heat exchange section are integrated.

In the top thermal-voltage power generation module, a shell of the pipe wall type thermal-voltage power generation basic module is of a tubular structure and is made of a metal material with good thermal conductivity; the inner radius of the shell of the tube wall type thermal-voltage power generation basic module is the same as the inner radius of the inner tube interface of the sleeve heat exchange section, and is r2; the outer radius of the shell of the pipe wall type thermal-voltage power generation basic module is the same as the outer radius of the inner pipe interface of the sleeve heat exchange section, and is r5; the lower end of the shell of the pipe wall type thermoelectric generation basic module is processed into an internal thread, which is called as the internal thread of the shell of the pipe wall type thermoelectric generation basic module; the upper end of the shell of the pipe wall type thermal-voltage power generation basic module is processed into external threads, which are called external threads of the shell of the pipe wall type thermal-voltage power generation basic module and have the same specification as external threads of an inner pipe interface of a sleeve heat exchange section; the inner threads of the shell of the pipe wall type thermoelectric generation basic module are matched with the outer threads of the shell of the pipe wall type thermoelectric generation basic module, and a tubular structure is formed after screwing; the height of the inner thread of the pipe wall type thermal-voltage power generation base module and the height of the outer thread of the pipe wall type thermal-voltage power generation base module are H2, and the height of the shell of the pipe wall type thermal-voltage power generation base module is Hn+h3+H2.

The pipe wall type thermal-voltage power generation module consists of a plurality of thermoelectric power generation chips; the cold end of the thermoelectric power generation chip is welded on the inner side of the shell of the pipe wall type thermoelectric power generation base module, and the hot end of the thermoelectric power generation chip is welded on the outer side of the inner layer of the pipe wall type thermoelectric power generation base module.

The thermoelectric generation chips are aligned in the horizontal direction and the vertical direction, and are arranged in rows in the horizontal direction and are arranged in columns in the vertical direction; the number of the thermoelectric generation chips in each row is the same, and the number of the thermoelectric generation chips in each column is the same; the connection relation between each row of thermoelectric generation chips is serial connection; after the thermoelectric power generation chips of each row are connected in series, the output power lines of each row are connected in parallel; the power output end of the tube wall type thermal-voltage power generation basic module is formed.

The photovoltaic module support frame is composed of a photovoltaic module support frame main body and four photovoltaic module support frame side lugs, and is made of metal materials; side ear shape of support frame of thermal volt module the clamping pieces of the heat exchange sections of the sleeve are the same, symmetrically welded on the outer side of the main body of the support frame of the thermal-voltage module; the main body of the support frame of the thermal-voltage module is of a tubular structure, and the height is h1; the thermal-volt supporting frame is used for limiting the distance between the pipe wall type thermal-volt power generation basic module and the sleeve heat exchange section outer pipe connector and is matched with the water flow section outer pipe connector for use.

The pipe wall type thermal-voltage power generation module is provided with pipe wall type thermal-voltage power generation base module sealing rings at the upper end and the lower end, and the pipe wall type thermal-voltage power generation base module sealing rings are embedded between the pipe wall type thermal-voltage power generation base module shell and the pipe wall type thermal-voltage power generation base module inner layer to seal the pipe wall type thermal-voltage power generation module.

The inner layer of the tube wall type thermal-voltage power generation basic module is of a tubular structure, and the height is Hn+h3; the upper end is flush with the shell of the pipe wall type thermal-voltage power generation basic module; the outer diameter is r2 minus the thickness of the 2-time tube wall type thermal-voltage power generation module.

In the top heat exchange module, a heat exchange connecting pipe is of a tubular structure and is made of a metal material; the part of the heat exchange tube connected with the middle space is a channel through which the geothermal water inner tube flows; three layers of cylindrical cavities which are axially parallel to the heat exchange connecting pipe are distributed on the pipe wall from inside to outside on the concentric circle of the section, and are respectively a working medium inflow pipeline, a geothermal water outflow pipeline and a working medium outflow pipeline.

At the lower side of the heat exchange connecting pipe: a circular convex edge with a circular cross section is arranged between the working medium inflow pipeline and the geothermal water inner pipe and is called an inner tenon; a circular convex edge with a circular cross section is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline, and is called a middle tenon; a circular convex edge with a circular cross section is arranged between the geothermal water outflow pipeline and the working medium outflow pipeline, and the circular convex edge is called an outer tenon; the working medium flows out of the outer side of the pipeline and is processed into external threads, which are called external threads at the lower end of the heat exchange tube.

At the upper edge of the heat exchange connecting pipe: a circular concave edge with a section of ring shape is arranged between the working medium inflow pipeline and the geothermal water inner pipe, and is called an inner layer mortice; a circular concave edge is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline, called the middle mortise; the section between the geothermal water outflow pipe and the working medium outflow pipe is a circular concave edge, which is called an outer mortice. Working medium flows out of the outer side of the pipeline and is processed into internal threads, which are called as internal threads at the upper end of the heat exchange tube.

Adjacent heat exchange connecting pipes are connected through screwing; when the external thread at the lower end of the heat exchange tube is screwed with the internal thread at the upper end of the heat exchange tube, the inner mortises, the middle mortises and the outer mortises are added with sealing rings.

When adjacent heat exchange connecting pipes are connected through screwing, the inner rabbet and the outer rabbet of the upper heat exchange connecting pipe are in one-to-one correspondence with the inner rabbet, the middle rabbet and the outer rabbet of the lower heat exchange connecting pipe, and under the action of the sealing ring, the geothermal water inner pipe, the working medium inflow pipeline, the geothermal water outflow pipeline and the working medium outflow pipeline are isolated and sealed.

The protruding heights of the inner tenon, the middle tenon and the outer tenon are larger than the recessed depths of the inner mortise, the middle mortise and the outer mortise, and the protruding parts are called a homogeneous annular channel, so that working medium inflow pipelines of the same pipeline are communicated through the homogeneous annular channel, and geothermal water outflow pipelines of the same pipeline are communicated through the homogeneous annular channel; the working medium outflow pipelines of the same pipeline are communicated through a homogeneous annular channel.

In the top heat exchange module, the bottom heat exchange joint is formed by combining a heat exchange joint external connecting pipe, a bottom joint outer pipe, a bottom joint middle pipe, a bottom joint inner pipe, a bottom joint external threaded pipe, a heat exchange joint bottom plate, a heat exchange joint isolation plate and a geothermal water connecting pipe; all the above components are made of metallic materials.

The heat exchange joint outer connecting pipe, the bottom joint outer pipe, the bottom joint middle pipe, the bottom joint inner pipe and the bottom joint outer threaded pipe are all arranged on the heat exchange joint bottom plate; the bottom plate of the heat exchange joint is annular, and an external connecting pipe, a bottom joint outer pipe and a bottom joint middle pipe of the heat exchange joint are welded on the upper edge. The bottom joint inner tube penetrates through the heat exchange joint bottom plate and is welded with the heat exchange joint bottom plate at the side face; the lower edge is welded with a bottom joint external threaded pipe.

The external connecting pipe of the heat exchange joint is of a tubular structure, the lower end is welded with the bottom plate of the heat exchange joint; the upper edge is provided with an internal thread, which is called as a bottom joint internal thread; the internal thread of the bottom joint is matched with the external thread of the lower end of the heat exchange pipe of the heat exchange connecting pipe and screwed.

The outer tube of the bottom joint is of a tubular structure, the lower end is welded with the bottom plate of the heat exchange joint; the upper part is provided with a bottom joint outer side mortice, the size and the depth of the bottom joint outer side mortice are completely the same as those of the outer layer mortises of the heat exchange connecting pipes, and the bottom is provided with a plurality of outer pipe side holes.

The middle pipe of the bottom joint is of a tubular structure, the lower end is welded with the bottom plate of the heat exchange joint; the upper part is provided with a middle mortice of the bottom joint, the size and the depth of the middle mortice of the bottom joint are completely the same as those of the middle mortice of the heat exchange connecting pipe, and the bottom is provided with a plurality of side holes of the middle pipe.

The bottom joint inner tube passes through the heat exchange joint bottom plate and is welded with the heat exchange joint bottom plate at the side surface; the upper part is provided with a bottom joint inner side mortises, and the size and the depth of the bottom joint inner side mortises are completely the same as those of the inner layer mortises of the heat exchange connecting pipes; the lower part is processed into a lower mortise of the bottom joint; the lower mortise of the bottom joint is matched with the pipe wall at the upper end of the pipe wall type thermal-voltage power generation basic module.

The external thread pipe of the bottom joint is of a tubular structure and is provided with external threads; the external thread specification is matched with the internal thread of the external tube connector of the sleeve heat exchange section.

The heat exchange joint isolation plate is provided with a plurality of holes corresponding to the geothermal water connecting pipes one by one.

The upper part of the geothermal water connecting pipe is welded with the heat exchange joint isolation plate, and the lower part is welded with the heat exchange joint bottom plate.

The heat exchange joint isolation plate is of an annular structure, and the inner side of the upper edge of the outer tube of the bottom joint is welded with the outer side of the heat exchange joint isolation plate; the outer side of the upper edge of the middle pipe of the bottom joint is welded with the inner side of the heat exchange joint isolation plate.

The external threaded pipe of the bottom joint is screwed with the external pipe connector of the heat exchange section of the uppermost sleeve, and when the external threaded pipe of the bottom joint is screwed, the lower mortise of the bottom joint is filled with a sealing ring to seal with the pipe wall at the upper end of the uppermost pipe wall type thermal-voltage power generation foundation module.

The heat exchange connecting pipe at the lowest side is screwed with the internal thread of the bottom joint through the external thread at the lower end of the heat exchange pipe. When the heat exchange connecting pipe is screwed, the outer tenon of the bottom joint, the middle tenon of the bottom joint and the inner tenon of the bottom joint are added with sealing rings, so that the outer pipe of the bottom joint, the middle pipe of the bottom joint and the inner pipe of the bottom joint are respectively in sealing butt joint with the outer tenon, the middle tenon and the inner tenon of the heat exchange connecting pipe at the lowest side.

The top heat exchange joint consists of a top connecting disc, a top joint external threaded pipe, a top joint external tenon, a top joint middle tenon, a top joint internal tenon, a turbine working medium outflow pipe, a turbine working medium inflow pipe and an internal and external hot water connecting pipe; are all metal materials.

The shape and the height of the external thread pipe of the top joint are completely the same as those of the external thread at the lower end of the heat exchange pipe; the shape and the height of the outer tenon of the top joint are completely the same as those of the outer tenon of the heat exchange connecting pipe; tenon shape and height in top joint the tenon of the middle layer of the heat exchange connecting pipe is identical; the shape and the height of the inner tenon of the top joint are completely the same as those of the inner tenon of the heat exchange connecting pipe.

The lower end of the top connecting disc is respectively welded with the external threaded pipe of the top joint, the external tenon of the top joint, the middle tenon of the top joint and the inner tenon of the top joint.

A top hot water inner interface is arranged in the middle of the top connecting disc; a top hot water external interface is arranged between the top joint external tenon and the top joint middle tenon; a turbine working medium outflow pipe is arranged between the outer tenon of the top joint and the outer threaded pipe of the top joint, and an inner hot water connecting pipe and an outer hot water connecting pipe are communicated with the top hot water inner joint and the top hot water outer joint; a turbine working medium inflow pipe is arranged between the inner tenon of the top joint and the middle tenon of the top joint.

The connection relation of each part of the sleeve heat exchange section is as follows:

(a) The lower end of the axial flow water pump section is screwed with the inner pipe interface of the sleeve heat exchange section connection interface; the lower end of the outer tube of the bottommost sleeve heat exchange section is screwed with the outer tube connector of the sleeve heat exchange section;

(b) The upper end of the axial flow water pump section is screwed with the inner tube connector of the sleeve heat exchange section, the upper end of the outer tube of the sleeve heat exchange section at the bottommost end is screwed with the outer tube connector of the sleeve heat exchange section, and four sleeve heat exchange section clamping pieces are embedded between the inner tube connector of the sleeve heat exchange section and the outer tube connector of the sleeve heat exchange section;

(c) The lower end of the inner tube of the bottommost sleeve heat exchange section is screwed with the inner tube connector of the sleeve heat exchange section; the lower end of the outer tube of the secondary bottom sleeve heat exchange section is screwed with the outer tube connector of the sleeve heat exchange section;

(d) The upper end of the inner tube of the sleeve heat exchange section is screwed with the connector of the inner tube of the sleeve heat exchange section; the upper end of the outer tube of the sleeve heat exchange section is screwed with the outer tube connector of the sleeve heat exchange section; four sleeve heat exchange section clamping pieces are embedded between the sleeve heat exchange section inner pipe connector and the sleeve heat exchange section outer pipe connector;

(e) The lower end of the inner tube of the next sleeve heat exchange section is screwed with the connector of the inner tube of the last sleeve heat exchange section; the lower end of the outer tube of the next sleeve heat exchange section is screwed with the connector of the outer tube of the last sleeve heat exchange section;

(f) The upper end of the inner tube of the sleeve heat exchange section is screwed with the connector of the inner tube of the next sleeve heat exchange section; the upper end of the outer tube of the sleeve heat exchange section is screwed with the connector of the outer tube of the next sleeve heat exchange section; four sleeve heat exchange section clamping pieces are embedded between the sleeve heat exchange section inner pipe connector and the sleeve heat exchange section outer pipe connector;

(g) Repeating (e) and (f) to connect the sleeve heat exchange sections with the required length.

The connection relation of the pipe wall type thermal-voltage power generation section is as follows:

the pipe wall type thermal-voltage power generation basic module section is assembled at the upper end of the sleeve heat exchange section;

(a) A sleeve heat exchange section inner pipe connector is screwed on the sleeve heat exchange section inner pipe at the top end, a sleeve heat exchange section outer pipe connector is screwed on the sleeve heat exchange section outer pipe at the top end, and four sleeve heat exchange section clamping pieces are embedded between the sleeve heat exchange section inner pipe connector and the sleeve heat exchange section outer pipe connector;

(b) The upper end of the inner tube connector of the sleeve heat exchange section is screwed with a tube wall type thermal-volt power generation basic module;

(c) The upper end of the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section, and the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section; embedding a thermal volt module support frame into the outer tube connector of the sleeve heat exchange section;

(d) The upper end of the pipe wall type thermal-voltage power generation basic module is screwed with the next pipe wall type thermal-voltage power generation basic module; the number of the tube wall type thermoelectric generation basic modules is determined according to the required tube wall type thermoelectric generation basic module section height;

(e) The upper end of the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section, and the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section; and the thermal-volt module supporting frames are embedded in the outer tube connector of the sleeve heat exchange section, and the required number is determined according to the height of the tube wall type thermal-volt power generation basic module section.

The connection relation of the top thermal-voltage power generation module is as follows:

(a) The bottom heat exchange joint is screwed with the outer pipe connector of the uppermost sleeve heat exchange section through the outer threaded pipe of the bottom joint, and when the bottom heat exchange joint is screwed, the lower mortise of the bottom joint is filled with a sealing ring to be sealed with the pipe wall at the upper end of the uppermost pipe wall type thermal-voltaic power generation foundation module;

(b) The heat exchange connecting pipe is screwed with the bottom joint internal thread of the bottom heat exchange joint through the external thread at the lower end of the heat exchange pipe;

(c) The upper heat exchange connecting pipes are screwed with the inner threads of the upper ends of the heat exchange pipes of the lower heat exchange connecting pipes through the outer threads of the lower ends of the heat exchange pipes, and the number of the screwed heat exchange connecting pipes is selected according to the requirement of the connection length;

(d) And a top heat exchange joint is screwed at the upper end of the uppermost heat exchange connecting pipe.

The power output mode of the power generation device is as follows:

(a) The electric energy of the turbine generator is directly output, and the output power source is called a turbine power generation power source;

(b) And the power supplies of all the pipe wall type thermal-voltage power generation basic modules are output in parallel, and the output power supply is called a pipe wall thermal-voltage power supply.

The beneficial effects of the invention are as follows:

(1) The design scheme of deep in-situ geothermal power generation meeting construction requirements is provided;

(2) In-situ recharging geothermal water in the in-situ geothermal power generation process;

(3) The recharging water level is far lower than the heat-taking water level;

(4) Two power generation modes are adopted, so that the power generation efficiency is improved;

4. Description of the drawings

Fig. 1 is a schematic general structure of the present invention.

Fig. 2 is a schematic view of a single water inlet pipe in the water inlet section structure of the present invention.

Fig. 3 is a schematic diagram of a commutator according to the present invention.

Fig. 4 is a schematic view of a water inlet section connection port structure.

Fig. 5 is a top cover for recharging water connection.

Fig. 6 is a recharging water communicator.

Fig. 7 is a top view of the recharging water communicator.

Fig. 8 is a sleeve heat exchange section connection interface.

FIG. 9 illustrates a sleeve heat exchange section interface floor.

FIG. 10 is a schematic illustration of the outer tube interface of the double tube heat exchange section.

FIG. 11 is a cross-sectional view of the outer tube interface of the double tube heat exchange section.

FIG. 12 is a sleeve heat exchange section an inner pipe interface schematic diagram.

FIG. 13 is a cross-sectional view of an inner tube interface of a double tube heat exchange section.

FIG. 14 is a sleeve change schematic of the inner tube of the hot section.

FIG. 15 is a double pipe heat exchanger schematic of the section outer tube.

FIG. 16 is a schematic view of the structure of the sleeve heat exchange section fastener.

FIG. 17 is a schematic illustration of the connection of the sleeve heat exchange section fastener, sleeve heat exchange section outer tube connector, sleeve heat exchange section inner tube connector.

Fig. 18 is a schematic view of an inner tube connector of a double tube heat exchange section.

Fig. 19 is a top view of the tube connector support structure in the sleeve heat exchange section.

Fig. 20 is a sleeve heat exchange section outer tube connector.

FIG. 21 is a schematic view of a photovoltaic module support bracket embedded within a sleeve heat exchange section outer tube connector.

Fig. 22 is a top view of the tube clamping groove structure of the sleeve heat exchange section.

Fig. 23 is a schematic view of a submersible pump for a hot water well.

Fig. 24 tube wall type thermal voltage generation base module.

FIG. 25 is a cross-sectional view of a heat exchange connection tube in a top heat exchange module.

FIG. 26 is a cross-sectional view of a heat exchange connecting tube.

Fig. 27 is a cross-sectional view of a bottom heat exchange joint.

Fig. 28 is a schematic view of a heat exchange joint spacer plate.

Fig. 29 is a schematic view of a heat exchange joint bottom plate.

Fig. 30 is a cross-sectional view of a top heat exchange joint.

Fig. 31 is a bottom view of the top heat exchange joint.

In the figure, 1 water inlet section, 2 reverser, 5 sleeve heat exchange section, 6 top thermal power generation module, 7 turbine power generation module, 901 ground, 902 geothermal water, 110 water inlet pipe, 111 water inlet pipe body, 112 water inlet external screw thread, 113 water inlet internal screw thread, 210 water inlet section connecting port, 211-1 to 211-4 recharging water communication interface, 220-1 to 220-4 recharging water communication device, 230 sleeve heat exchange section connecting interface, 231 sleeve heat exchange section outer pipe interface, 232 sleeve heat exchange section inner pipe interface, 233-1 to 233-4 sleeve heat exchange section recharging water inlet, 212 water inlet section connecting shell, 213 water inlet pipe connecting screw thread, 214 water recharging connection top cover, 221 water recharging communication vessel bottom surface, 222 water recharging communication vessel top surface, 223 hollow fan ring column, 224 main body fan ring column, 234 sleeve heat exchange section interface bottom plate, 235 sleeve heat exchange section outer pipe interface welding position, 236 sleeve heat exchange section inner pipe interface welding position, 237 sleeve heat exchange section outer pipe interface internal screw thread, 239 sleeve heat exchange section inner pipe interface external screw thread, 244 sleeve heat exchange section geothermal water inlet, 310 sleeve heat exchange section inner pipe, 311-1, 311-2 sleeve heat exchange section inner pipe internal screw thread, 320 sleeve heat exchange section outer pipe, 321-1, 321-2 sleeve heat exchange section outer pipe external threads, 331 sleeve heat exchange section outer pipe clamping pieces, 332 inner and outer pipe positioning pieces, 333 sleeve heat exchange section inner pipe clamping pieces, 330-1, 330-2, 330-3, 330-4 sleeve heat exchange section clamping pieces, 340 sleeve heat exchange section inner pipe connector, 350 sleeve heat exchange section outer pipe connector, 341-1, 341-2 sleeve heat exchange section inner pipe connector external threads, 342 sleeve heat exchange section inner pipe connector support bodies, 343-1-343-4 sleeve heat exchange section inner pipe clamping grooves, 351-1, 351-2 sleeve heat exchange section outer pipe connector internal threads, 352 sleeve heat exchange section outer tube connector support, 353-1-353-4 sleeve heat exchange section outer tube clamping groove, 361 well submersible pump, 362 axial flow water pump sealing ring, 471 pipe wall type thermal voltage generation base module shell, 472 pipe wall type thermal voltage generation module, 473 pipe wall type thermal voltage generation base module inner layer, 474-1, 474-2 pipe wall type thermal voltage generation base module sealing ring, 475 pipe wall type thermal voltage generation base module internal thread, 476 pipe wall type thermal voltage generation base module external thread, 461 thermal voltage module support frame main body, 462-1, 462-2, 462-3, 462-4 thermal voltage module support frame side ear, 511 geothermal water inner pipe, 512-a, 512-b geothermal water outflow pipe, 513-a, 513-b geothermal water outflow pipe, 514-a, 514-b working medium outflow pipe, 515-a, 515-b outer layer tenon, 516-a, 516-b middle layer tenon, 517-a, 517-b inner layer tenon, 518-a, 518-b heat exchange tube lower end external screw thread, 521-a, 521-b inner layer mortise, 522-a, 522-b middle layer mortise, 523-a, 523-b outer layer mortise, 524-a, 524-b heat exchange tube upper end internal screw thread, 512-1 to 512-16 working medium inflow pipe, 513-1-513-24 geothermal water outflow pipes, 514-1, 514-2, … …,514-32 working medium outflow pipes, 531-a 531-b bottom joint female screw threads, 532-a, 532-b bottom joint outer side mortises, 533-a, 533-b heat exchange joint spacer plates, 534-a, 534-b bottom joint inner mortises, 535-a, 535-b bottom joint inner side mortises, 536-a, 536-b bottom joint outer pipes, 537-a, 537-b bottom joint inner pipes, 538-a, 538-b bottom joint inner pipes, 539-a, 539-b outer tube side holes, 540-a, 540-b,540-1, 540-2 to 540-16 geothermal water connecting tubes, 541-a, 541-b middle tube side holes, 542-a, 542-b bottom joint external threaded tubes, 543-a, 543-b heat exchange joint external connecting tubes, 544-a, 544-b heat exchange joint bottom plates, 546-a, 546-b bottom joint lower mortises, 551-a, 551-b top joint external threaded tubes, 552-a, 552-b top joint external mortises, 553, The upper joints of 553-a and 553-b are provided with middle tenons, 554-a and 554-b, upper joint inner tenons, 555 upper hot water inner joint, 556 upper hot water outer joint, 557 turbine working medium inflow pipe, 558 turbine working medium outflow pipe, 559 inner and outer hot water connecting pipes and 560 upper joint discs.

5. Detailed description of the preferred embodiments

Fig. 1 shows an overall construction of the device of the invention.

The device is composed of a water inlet section 1, a reverser 2, a sleeve heat exchange section 5, a top thermal-voltage power generation module 6 and a turbine power generation module 7, wherein the water inlet section 1, the reverser 2 and the sleeve heat exchange section 5 are all underground and are sequentially butted from deep ground to the ground surface. The top thermal-voltage power generation module is partially installed underground, partially installed on the ground, and the turbine power generation module is installed on the ground.

The water inlet section 1 is formed by connecting a plurality of water inlet pipes 110, one end of each water inlet pipe is processed into a water inlet external thread 112, and the other end of each water inlet pipe is processed into a water inlet internal thread 113; the external threads at the two ends are equal to the internal threads in major diameter, minor diameter and thread pitch, and adjacent water inlet pipes are screwed and connected through the external threads and the internal threads at the two ends to form the required length; the lowest part of the water inlet section 1 is a recharging inlet, and the highest part is a top end interface of the water inlet section; the top end interface of the water inlet section is an external thread 112, the recharging inlet is an internal thread, and the top end interface of the water inlet section is tightly connected with the water inlet pipe connecting thread 213 of the water inlet section connecting interface of the commutator 2 through screwing.

See fig. 3-13.

The commutator 2 is formed by connecting three parts of a water inlet section connecting port 210, four recharging water communicating vessels 220-1 to 220-4 and a sleeve heat exchange section connecting interface 230. The reverser 2 guides the recharging water between the outer tube and the inner tube of the sleeve heat exchange section 5 to the water inlet section connecting port 210 through the recharging water communicating vessel, guides the recharging water into the water inlet section through screwing connection with the top end interface of the water inlet section, and guides the recharging water into the ground from the recharging inlet at the bottommost end of the water inlet section.

The water inlet section connection port 210 of the commutator 2 is composed of a water inlet section connection housing 212 and a recharging water connection top cover 214.

The water inlet section connecting shell is made of metal materials, stainless steel is in a tubular structure, a recharging water connecting top cover 214 is welded on the upper side, and water inlet pipe connecting threads 213 are machined on the lower side; the water inlet pipe connecting screw thread is an internal screw thread and is screwed with the water inlet pipe water inlet external screw thread 112.

The recharging water communicating vessels 220-1 to 220-4 are made of metal materials, and stainless steel is adopted in the embodiment. The outside is a entity, namely a main body fan ring column 224, the inside is hollowed out to be a hollowed out fan ring column 223, and the top surface of the main body fan ring column is a top surface 222 of the recharging water communicating vessel; the bottom surface of the main body fan ring column is called as a recharging communication vessel bottom surface 221 as shown in fig. 6 and 7.

The sleeve heat exchange section connection interface 230 is composed of a sleeve heat exchange section interface bottom plate 234, a sleeve heat exchange section outer tube interface 231 and a sleeve heat exchange section inner tube interface 232, wherein the sleeve heat exchange section outer tube interface 231 and the sleeve heat exchange section inner tube interface 232 are welded on the sleeve heat exchange section interface bottom plate 234, and the welding position is sealed.

The sleeve heat exchange section interface bottom plate 234 is disc-shaped, and the radius of the disc is the same as that of the recharging water connection top cover 214 and is Ra; the upper sides of the four double-pipe heat exchange sections are uniformly distributed with the recharging water inlets 233-1, 233-2, 233-3 and 233-4 of the hollowed-out double-pipe heat exchange sections; the shape and the size of the recharging water inlets of the four sleeve heat exchange sections are the same as those of recharging water communication interfaces 211-1, 211-2-211-3 and 211-4 of the recharging water connection top cover, and the emptying position is also the same as that of the recharging water communication interfaces of the recharging water connection top cover. See fig. 8, 9.

The outermost side of the sleeve heat exchange section joint bottom plate 234 is a welding part 235 of the sleeve heat exchange section outer tube joint 231 and is used for welding the sleeve heat exchange section outer tube joint; the middle of the interface bottom plate of the sleeve heat exchange section is hollowed into a round shape, the hollowed area is called a sleeve heat exchange section geothermal water inlet 244, and the radius of the sleeve heat exchange section geothermal water inlet is set to be r2; outside the sleeve heat exchange section geothermal water inlet 244 is the welded portion 236 of the sleeve heat exchange section inner tube interface 232.

The sleeve heat exchange section outer tube interface 231 is shown in fig. 10 and 11. The outer tube interface is tubular structure, adopts the metal material, and this embodiment adopts stainless steel. The radius of the outer radius is the same as that of the bottom plate of the interface of the sleeve heat exchange section, ra is set, and the inner radius is R6, so that the inner radius R6 is larger than the outer radius R1 of the cross section of the recharging water communicating vessel; the lower edge is welded with the bottom plate of the interface of the sleeve heat exchange section, the upper edge is processed into an internal thread called as the internal thread of the interface of the outer tube of the sleeve heat exchange section, and the internal thread is screwed with the outer tube of the sleeve heat exchange section; setting the height of an outer tube interface of the sleeve heat exchange section as H1; the height of the internal thread of the outer pipe joint of the sleeve heat exchange section is H2, the minor diameter of the internal thread is 2r4, and r4 is larger than the internal radius r6 of the outer pipe joint of the sleeve heat exchange section.

The inner tube interface 232 of the sleeve heat exchange section is of a tubular structure, and the embodiment adopts stainless steel. The radius of the inner part is the same as that of a geothermal water inlet of a sleeve heat exchange section on a sleeve heat exchange section interface bottom plate, r2 is set, and the outer radius is set as r5; the lower side is welded with the bottom plate of the interface of the sleeve heat exchange section, the upper side is processed into external threads, which are called external threads 239 of the interface of the inner tube of the sleeve heat exchange section, and the external threads are screwed with the inner tube of the sleeve heat exchange section; the height of the inner pipe interface of the sleeve heat exchange section is the same as that of the outer pipe interface of the sleeve heat exchange section, and H1 is adopted; the height of the external thread of the inner pipe joint of the sleeve heat exchange section is the same as that of the internal thread of the outer pipe joint of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread is 2r3.

The double pipe heat exchange section pipe is divided into a double pipe heat exchange section inner pipe 310 and a double pipe heat exchange section outer pipe 320. As in fig. 12 and 13.

The inner tube 310 of the heat exchange section of the sleeve is in a tubular structure and is made of a material with low heat conductivity and high elastic modulus, and in the embodiment, a glass fiber composite material is adopted. The inner radius of the inner pipe of the sleeve heat exchange section is the same as the inner radius of the interface of the inner pipe of the sleeve heat exchange section and is r2; outer radius of inner tube of sleeve heat exchange section and sleeve the outer radius of the inner pipe interface of the heat exchange section is the same, r5; internal threads are machined at two ends of the inner tube of the sleeve heat exchange section and are called as internal threads 311-1 and 311-2 of the inner tube of the sleeve heat exchange section, and are matched with external threads 239 of an interface of the inner tube of the sleeve heat exchange section; the inner tube of the heat exchange section of the sleeve at the lowest side, the inner thread of the inner pipe of the sleeve heat exchange section is screwed with the outer thread 239 of the inner pipe joint of the sleeve heat exchange section to form a whole.

The outer tube 320 of the heat exchange section of the sleeve is tubular in structure, and is made of stainless steel materials in this embodiment. Inner radius of outer tube of sleeve heat exchange section and sleeve the inner radius of the joint of the outer tube of the heat exchange section is the same, r6; outer radius of outer tube of sleeve heat exchange section and sleeve the outer radius of the outer tube interface of the heat exchange section is the same, is Ra; external threads are machined at two ends of the outer tube of the sleeve heat exchange section and are called external threads 321-1 and 321-2 of the outer tube of the sleeve heat exchange section, and are matched with internal threads 237 of an interface of the outer tube of the sleeve heat exchange section; the outer tube of the lowest sleeve heat exchange section is screwed with the inner thread 237 of the outer tube interface of the sleeve heat exchange section through the outer thread of the outer tube of the sleeve heat exchange section, and the two are combined into a whole. As shown in fig. 14 and 15.

The sleeve heat exchange section connector consists of a sleeve heat exchange section outer tube connector 340B, a sleeve heat exchange section inner tube connector 340, sleeve heat exchange section clamping pieces 330-1, 330-2, 330-3 and 330-4. As shown in fig. 16 and 17.

As shown in fig. 18 and 19. The inner tube connector 340 of the sleeve heat exchange section is used for connecting the inner tubes of the adjacent sleeve heat exchange sections, is tubular and is made of a material with low heat conductivity coefficient and high elastic modulus; the inner radius of the inner tube connector 340 of the sleeve heat exchange section is the same as the inner radius of the inner tube interface of the sleeve heat exchange section and is r2; the outer radius of the inner tube connector of the sleeve heat exchange section is the same as the outer radius of the inner tube connector of the sleeve heat exchange section, r5; external threads are machined at two ends of the inner tube connector of the sleeve heat exchange section and are called as external threads 341-1 and 341-2 of the inner tube connector of the sleeve heat exchange section, and are matched with the internal threads of the inner tube of the sleeve heat exchange section; the height of the external thread of the inner tube connector of the sleeve heat exchange section is the same as that of the internal thread of the outer tube interface of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread of the inner tube connector of the sleeve heat exchange section is 2r3.

A sleeve heat exchange section inner tube connector support 342 is arranged between the external threads of the sleeve heat exchange section inner tube connectors at the two ends; let the inner tube connector support body height be h3, then h3 be greater than sleeve pipe heat exchange section fastener height h1.

Four inner tube clamping grooves 343-1, 343-2, 343-3 and 343-4 of the sleeve heat exchange section are uniformly distributed on the inner tube connector support 342 of the sleeve heat exchange section and are used for embedding sleeve heat exchange section clamping members; the pipe clamping groove in the sleeve heat exchange section is hollowed out according to the shape of the pipe clamping piece in the sleeve heat exchange section.

See fig. 20-23.

The sleeve heat exchange section outer tube connector 340B is used for connecting adjacent sleeve heat exchange section outer tubes, is tubular and is made of metal materials; the inner radius of the outer tube connector of the sleeve heat exchange section is the same as the inner radius of the outer tube connector of the sleeve heat exchange section, r6; the outer radius of the outer tube connector of the sleeve heat exchange section is the same as the outer radius of the outer tube connector of the sleeve heat exchange section, and is Ra; the two ends of the outer tube connector of the sleeve heat exchange section are processed into inner threads, namely inner threads 351-1 and 351-2 of the outer tube connector of the sleeve heat exchange section, which are matched with the outer threads of the outer tube of the sleeve heat exchange section; the height of the internal thread of the outer tube connector of the sleeve heat exchange section is the same as that of the internal thread of the outer tube interface of the sleeve heat exchange section, H2 is adopted, and the minor diameter of the internal thread of the outer tube connector of the sleeve heat exchange section is 2r4.

The pv module support is embedded inside the outer tube connector of the double-tube heat exchange section, as shown in fig. 21.

The photovoltaic module support frame is composed of a main body 461 of the photovoltaic module support frame and side ears 462-1, 462-2, 462-3 and 462-4 of the four photovoltaic module support frame, and is made of metal materials. Side ear shape of support frame of thermal volt module the sleeve heat exchange section fasteners 330 are identical, and symmetrically welded on the thermal voltage the outside of the module support frame body. The main body of the support frame of the thermal-voltage module is of a tubular structure, and the height is h1; the thermal-volt supporting frame is used for limiting the distance between the pipe wall type thermal-volt power generation basic module and the sleeve heat exchange section outer pipe connector and is matched with the water flow section outer pipe connector for use.

A sleeve heat exchange section outer tube connector support body 352 is arranged between the inner threads of the sleeve heat exchange section outer tube connectors at the two ends; let the outer tube connector support body height be h3, then h3 be greater than sleeve pipe heat exchange section fastener height h1.

Four sleeve heat exchange section outer tube clamping grooves 353-1, 353-2, 353-3 and 353-4 are uniformly distributed on the sleeve heat exchange section outer tube connector support body and are used for embedding sleeve heat exchange section clamping pieces; the sleeve heat exchange section outer pipe clamping groove is hollowed out according to the shape of the sleeve heat exchange section outer pipe clamping piece.

The sleeve heat exchange section clamping pieces 330-1, 330-2, 330-3 and 330-4 consist of sleeve heat exchange section outer pipe clamping pieces 331, inner and outer pipe positioning pieces 332 and sleeve heat exchange section inner pipe clamping pieces 333, wherein the outer pipe clamping pieces are columnar with arc sections, and the columnar height is h1; the radius of the arc is larger than the inner radius r6 of the inner radius of the outer tube of the sleeve heat exchange section and slightly smaller than r4; the section of the inner pipe clamping piece is in an arc column shape, and the column height is h1; the radius of the arc is larger than r3 and slightly smaller than the outer radius r5 of the inner tube of the sleeve heat exchange section; the inner and outer tube positioning sheets are welded with the outer tube clamping sheet 331 and the inner tube clamping sheet 333 of the sleeve heat exchange section respectively at two sides, so that the inner and outer tube positioning sheets 332, the outer tube clamping sheet 331 and the inner tube clamping sheet 333 of the sleeve heat exchange section are integrated.

The axial flow water pump section is composed of a sleeve heat exchange section inner pipe and a well submersible pump, the well submersible pump is arranged in the middle of the sleeve heat exchange section inner pipe, an axial flow water pump sealing ring is sealed between a well submersible pump suction pipe and the sleeve heat exchange section inner pipe, and the axial flow water pump sealing ring is made of rubber.

In this example, the submersible pump for the well is manufactured by De Neng pump (Tianjin), 600QJR hot water well, and the sectional view is shown in FIG. 23.

The connection relation of all the components of the axial flow water pump section is as follows:

(a) The lower end of the axial flow water pump section is screwed with the inner pipe of the sleeve heat exchange section of the connecting interface of the sleeve heat exchange section; the lower end of the outer tube of the bottommost sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section of the connecting interface of the sleeve heat exchange section;

(e) The lower end of the inner tube of the sleeve heat exchange section is screwed with the inner tube connector of the sleeve heat exchange section; the lower end of the outer tube of the sleeve heat exchange section is screwed with the outer tube connector of the sleeve heat exchange section;

(f) The upper end of the inner tube of the sleeve heat exchange section is screwed with the connector of the inner tube of the sleeve heat exchange section; the upper end of the outer tube of the sleeve heat exchange section is screwed with the outer tube connector of the sleeve heat exchange section; four sleeve heat exchange section clamping pieces are embedded between the sleeve heat exchange section inner pipe connector and the sleeve heat exchange section outer pipe connector;

(g) The inner tube of the sleeve heat exchange section and the outer tube of the sleeve heat exchange section are connected to each other with the required length.

The top thermal-voltage power generation module 6 is composed of a pipe wall type thermal-voltage power generation module and a top heat exchange module. The pipe wall type thermal voltage power generation basic module consists of a pipe wall type thermal voltage power generation basic module shell 471, a pipe wall type thermal voltage power generation module 472, a pipe wall type thermal voltage power generation basic module inner 473 and pipe wall type thermal voltage power generation basic module sealing rings 474-1 and 474-2.

The tube wall type thermal-voltage power generation basic module structure is shown in fig. 24.

The tube wall type thermoelectric generation base module shell 471 is of a tubular structure and is made of a metal material with good heat conductivity, and the embodiment is made of aluminum alloy. The inner radius of the shell of the tube wall type thermal-voltage power generation basic module is the same as the inner radius of the inner tube interface of the sleeve heat exchange section, and is r2; the outer radius of the shell of the pipe wall type thermal-voltage power generation basic module is the same as the outer radius of the inner pipe interface of the sleeve heat exchange section, and is r5; the lower end of the shell of the pipe wall type thermoelectric generation basic module is processed into an internal thread which is called as pipe wall type thermoelectric generation basic module internal thread 475; the upper end of the shell of the tube wall type thermoelectric generation basic module is processed into external threads, which are called tube wall type thermoelectric generation basic module shell external threads 476; the inner threads of the shell of the pipe wall type thermoelectric generation basic module are matched with the outer threads of the shell of the pipe wall type thermoelectric generation basic module, and a tubular structure is formed after screwing; the height of the inner thread of the pipe wall type thermal-voltage power generation base module and the height of the outer thread of the pipe wall type thermal-voltage power generation base module are H2, and the height of the shell of the pipe wall type thermal-voltage power generation base module is Hn+h3+H2.

The tube wall type thermal-voltage power generation module 472 is composed of a plurality of thermoelectric power generation chips; the cold junction of thermoelectric generation chip welds in pipe wall formula thermal voltage power generation basic module shell 471 inboard, and the hot junction of thermoelectric generation chip welds in pipe wall formula thermal voltage power generation basic module inlayer 473 outside.

The pipe wall type thermal-voltage power generation base module sealing rings 474-1 and 474-2 are arranged at the upper end and the lower end of the pipe wall type thermal-voltage power generation module and are embedded between the pipe wall type thermal-voltage power generation base module shell and the pipe wall type thermal-voltage power generation base module inner layer to seal the pipe wall type thermal-voltage power generation module.

The inner layer 473 of the tube wall type thermal-voltage power generation basic module is of a tubular structure, and the height is Hn+h3; the upper end is flush with the shell of the pipe wall type thermal-voltage power generation basic module; the outer diameter is r2 minus the thickness of the 2-time tube wall type thermal-voltage power generation module.

In the embodiment, the thermoelectric generation chip is a thermoelectric generation chip manufactured by Hubei Saigui new energy science and technology Co., ltd., model: TEG1-19913.

The connection and assembly relation of the pipe wall type thermal-voltage power generation module is as follows:

the pipe wall type thermal-voltage power generation basic module section is assembled at the upper end of the sleeve heat exchange section.

(d) The upper end of the pipe wall type thermal-voltage power generation basic module is screwed with the next pipe wall type thermal-voltage power generation basic module;

(e) The upper end of the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section, and the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section; embedding a thermal volt module support frame into the outer tube connector of the sleeve heat exchange section;

(f) And (3) determining the number of the tube wall type thermal voltage power generation basic modules according to the required tube wall type thermal voltage power generation basic module section height, and determining the number of times of repeating the steps (d) - (e) according to the number of the tube wall type thermal voltage power generation basic modules.

See fig. 25-31.

The top heat exchange module is composed of a pipe wall type thermal-voltage power generation module and a top heat exchange module. The pipe wall type thermal voltage power generation basic module consists of a pipe wall type thermal voltage power generation basic module shell 471, a pipe wall type thermal voltage power generation module 472, a pipe wall type thermal voltage power generation basic module inner 473 and pipe wall type thermal voltage power generation basic module sealing rings 474-1 and 474-2.

In the top heat exchange module, the heat exchange connecting pipe is of a tubular structure with thicker wall thickness and is made of a metal material, and the embodiment adopts aluminum alloy. The hollow part of the heat exchange tube is a passage through which the geothermal water inner tube 511 flows; three layers of cylindrical cavities which are axially parallel to the heat exchange connecting pipe are distributed on the concentric circle of the section from inside to outside on the pipe wall, namely working medium inflow pipelines 512-a and 512-b, geothermal water outflow pipelines 513-a and 513-b and working medium outflow pipelines 514-a and 514-b.

At the lower side of the heat exchange connecting pipe: the section between the working medium inflow pipeline and the geothermal water inner pipe is a circular convex edge, which is called an inner tenon 517-a and 517-b; a circular convex edge with a circular cross section is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline and is called as middle-layer tenons 516-a and 516-b; the section between the geothermal water outflow pipe and the working medium outflow pipe is a circular convex edge, which is called outer rabbet 515-a and 515-b; the working medium flows out of the outer side of the pipeline and is processed into external threads, which are called external threads 518-a and 518-b at the lower end of the heat exchange tube.

At the upper edge of the heat exchange connecting pipe: a circular concave edge with a section of ring is arranged between the working medium inflow pipeline and the geothermal water inner pipe, and is called an inner layer mortises 521-a and 521-b; a circular concave edge with a section of ring shape is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline, and is called as middle-layer mortises 522-a and 522-b; the section between the geothermal water outflow pipe and the working medium outflow pipe is a circular concave edge, which is called outer mortises 523-a and 523-b; the working medium flows out of the outer side of the pipeline and is processed into internal threads, which are called internal threads 524-a and 524-b at the upper end of the heat exchange tube.

When the external threads 518-a, 518-b at the lower end of the heat exchange tube are screwed with the internal threads 524-a, 524-b at the upper end of the heat exchange tube, sealing rings are added to the inner mortises 521-a, 521-b, the middle mortises 522-a, 522-b and the outer mortises 523-a, 523-b.

The inner tenons 517-a, 517-b and the outer tenons 515-a, 515-b of the middle tenons 516-a, 516-b of the upper heat exchange connecting pipes are in one-to-one correspondence with the inner mortises 521-a, 521-b, the middle mortises 522-a, 522-b and the outer mortises 523-a, 523-b of the lower heat exchange connecting pipes, and the geothermal water inner pipe, the working medium inflow pipe, the geothermal water outflow pipe and the working medium outflow pipe are isolated and sealed under the action of the sealing ring.

The bottom heat exchange joint is formed by combining heat exchange joint external connection pipes 543-a, 543-b, bottom joint external pipes 536-a, 536-b, bottom joint middle pipes 537-a, 537-b, bottom joint internal pipes 538-a, 538-b, bottom joint external screw thread pipes 542-a, 542-b, heat exchange joint bottom plates 544, 544-a, 544-b, heat exchange joint isolation plates 533, 533-a, 533-b, and geothermal water connection pipes 540-a, 540-b, 540-1 to 540-16; all the components are made of metal materials, and aluminum alloy is adopted in the embodiment.

The heat exchange joint external connection pipes 543-a, 543-b, the bottom joint external pipes 536-a, 536-b, the bottom joint middle pipes 537-a, 537-b, the bottom joint internal pipes 538-a, 538-b, and the bottom joint external screw pipes 542-a, 542-b are all mounted on the heat exchange joint bottom plates 544, 544-a, 544-b; the heat exchange joint bottom plates 544, 544-a, 544-b are annular, and are welded with heat exchange joint external connecting pipes 543-a, 543-b, bottom joint outer pipes 536-a, 536-b and bottom joint middle pipes 537-a, 537-b at the upper edges; the bottom joint inner tubes 538-a, 538-b pass through the heat exchange joint bottom plate and are welded with the heat exchange joint bottom plate at the side surfaces; the lower edges are welded to the bottom joint external thread pipes 542-a, 542-b.

The external connecting pipes 543-a and 543-b of the heat exchange joint are of tubular structures, and the lower ends of the external connecting pipes are welded with the bottom plates 544, 544-a and 544-b of the heat exchange joint; the upper edge is provided with internal threads which are called bottom joint internal threads 531-a and 531-b; the inner screw thread of the bottom joint is matched with and screwed with the outer screw threads 518-a and 518-b at the lower end of the heat exchange pipe of the heat exchange connecting pipe.

The bottom joint outer tubes 536-a, 536-b are tubular in structure, with the lower ends welded to the heat exchange joint bottom plate; the upper part is provided with outer mortises 532-a and 532-b of the bottom joint, the size and depth of the outer mortises of the bottom joint are identical to those of the outer mortises of the heat exchange connecting pipes, and the bottom is provided with a plurality of outer pipe side holes.

The middle pipe of the bottom joint is of a tubular structure, the lower end is welded with the bottom plate of the heat exchange joint; the upper part is provided with bottom joint middle mortises 534-a and 534-b, the sizes and depths of the bottom joint middle mortises 534-a and 534-b are identical to those of middle layer mortises 522-a and 522-b of the heat exchange connecting pipes, and the bottom is provided with a plurality of middle pipe side holes.

The bottom joint inner tube passes through the heat exchange joint bottom plate and is welded with the heat exchange joint bottom plate at the side surface; the upper part is provided with bottom joint inner mortises 535-a and 535-b, and the sizes and the depths of the bottom joint inner mortises 535-a and 535-b are identical to those of inner mortises 521-a and 521-b of the heat exchange connecting pipes; the lower part is processed into a lower mortise of the bottom joint; the lower mortise of the bottom joint is matched with the pipe wall at the upper end of the pipe wall type thermal-voltage power generation basic module.

The bottom joint external thread pipes 542-a, 542-b are tubular in structure and are machined with external threads; the external thread specification is matched with the internal threads 351-1 and 351-2 of the outer tube connector of the sleeve heat exchange section.

The heat exchange joint spacers 533, 533-a, 533-b have a plurality of holes corresponding to the heat exchange joint bottom plates 544, 544-a, 544-b and corresponding to the geothermal water connecting pipes 540-a, 540-b,540-1, 540-2 to 540-16.

The heat exchange joint isolation plates 533, 533-a and 533-b are of annular structures, and the inner sides of the upper edges of the outer tubes 536-a and 536-b of the bottom joints are welded with the outer sides of the heat exchange joint isolation plates; the outer sides of the upper edges of the tubes 537-a, 537-b in the bottom joint are welded with the inner sides of the heat exchange joint isolating plates.

The bottom joint external threaded pipes 542-a, 542-B are screwed with the uppermost sleeve heat exchange section external pipe connector 340B, and when the bottom joint external threaded pipes are screwed, the bottom joint lower mortises 546-a, 546-B are installed into sealing rings to be sealed with the pipe wall at the upper end of the uppermost pipe wall type thermal-voltaic power generation basic module.

The bottommost heat exchange connecting pipe is screwed with the bottom joint internal threads 531-a and 531-b through the external threads 518-a and 518-b at the lower end of the heat exchange pipe; when the bottom joint outer mortises 532-a, 532-b, bottom joint middle mortises 534-a, 534-b and bottom joint inner mortises 535-a, 535-b are added with sealing rings during screwing, so that the bottom joint outer pipes 536-a, 536-b, bottom joint middle pipes 537-a 537-b and bottom joint inner pipes 538-a-b are respectively in sealing butt joint with the outer mortises 515-a, 515-b, middle mortises 516-a, 516-b and inner mortises 517-a, 517-b of the lowest heat exchange connecting pipes.

The top heat exchange joint consists of a top connecting disc 560, top joint external thread pipes 551, 551-a and 551-b, top joint external tenons 552, 552-a and 552-b, top joint middle tenons 553, 553-a and 553-b, top joint internal tenons 554, 554-a and 554-b, a turbine working medium inflow pipe 557, a turbine working medium outflow pipe 558 and an internal and external hot water connecting pipe 559; are all metal materials.

The shape and the height of the top joint external thread pipes 551, 551-a and 551-b are completely the same as those of the external threads 518-a and 518-b at the lower end of the heat exchange pipe; the shape and the height of the outer tenons 552, 552-a and 552-b of the top joint are identical to those of the outer tenons 515-a and 515-b of the heat exchange connecting pipe; the shape and the height of the tenons 553, 553-a and 553-b in the top joint are completely the same as those of the tenons 516-a and 516-b in the middle layer of the heat exchange connecting pipe; the shape and height of the inner tenons 554, 554-a, 554-b of the top joint are identical to those of the inner tenons 517-a, 517-b of the heat exchange connecting pipe.

The lower end of the top connecting disc is welded with the top joint external threaded pipes 551, 551-a, 551-b, the top joint external tenons 552, 552-a, 552-b, the top joint middle tenons 553, 553-a, 553-b, and the top joint internal tenons 554, 554-a, 554-b respectively.

A top hot water inner interface 555 is arranged in the middle of the top connecting disc; a top hot water outer interface 556 is provided between the outer layer tenons 515-a, 515-b and the middle layer tenons 516-a, 516-b; a turbine working medium outflow pipe 558 is arranged between the outer tenon and the top joint external thread pipes 551 551-a and 551-b, and an inner hot water connecting pipe 559 and an outer hot water connecting pipe 559 are connected; turbine fluid inflow tube 557 is connected between top joint inner tenons 554, 554-a, 554-b and middle tenons 516-a, 516-b.

(a) The bottom heat exchange joint is screwed with the outer tube connector 340B of the uppermost sleeve heat exchange section through the outer threaded tubes 542-a and 542-B of the bottom joint, and when the bottom heat exchange joint is screwed, the lower mortises 546-a and 546-B of the bottom joint are filled into sealing rings and sealed with the upper tube wall of the uppermost tube wall type thermoelectric generation basic module;

(b) The heat exchange connecting pipe is screwed with the bottom joint internal threads 531-a and 531-b of the bottom heat exchange joint through the external threads 518-a and 518-b at the lower end of the heat exchange pipe;

(c) The heat exchange connecting pipes are screwed with the inner threads 524-a and 524-b at the upper end of the heat exchange pipe through the outer threads 518-a and 518-b at the lower end of the heat exchange pipe, and the number of the screwed heat exchange connecting pipes is selected according to the requirement of the connecting length;

The turbine power generation module employed in this embodiment is an ORC (organic rankine) generator. ORC magnetic levitation generator manufactured by Guangzhou, paper and wine speed energy cold and hot equipment Co., ltd., model: VWTWNC.

The working medium output by the working medium pump of the ORC generator of the turbine power generation module is input into a turbine working medium inflow pipe; the turbine working medium outflow pipe outputs the heated working medium and is connected to the working medium input interface of the expander of the ORC generator.

The electric energy output mode of the invention is as follows:

(a) The electric energy of the turbine generator is directly output, and the output power source is called a turbine power generation power source.

In the embodiment, glass fiber composite materials are adopted as materials with low heat conductivity and high elastic modulus, which are not specifically described; the metal materials not specifically described are aluminum alloy or stainless steel.

Claims

1. The geothermal in-situ thermal-voltaic power generation device for the deep well heat exchange sleeve is characterized in that: the device consists of a water inlet section (1), a commutator (2), a sleeve heat exchange section (5), a top thermal-voltage power generation module (6) and a turbine power generation module (7), and are sequentially connected in a butt joint manner from deep ground to the ground surface; the water inlet section (1), the commutator (2) and the sleeve heat exchange section (5) are all underground; the top thermal-voltage power generation module is partially installed underground, partially installed on the ground, and the turbine power generation module is installed on the ground;

The water inlet section (1) is formed by connecting a plurality of water inlet pipes (110), one end of each water inlet pipe is processed into a water inlet external thread (112), and the other end of each water inlet pipe is processed into a water inlet internal thread (113); the external threads at the two ends are equal to the internal threads in major diameter, minor diameter and thread pitch, and adjacent water inlet pipes are screwed and connected through the external threads and the internal threads at the two ends to form the required length; the lowest part of the water inlet section (1) is a recharging inlet, and the highest part is a top end interface of the water inlet section; the water inlet section top end interface is a water inlet external thread (112), the recharging inlet is a water inlet internal thread (113), and the water inlet section top end interface is tightly connected with a water inlet pipe connecting thread (213) of a water inlet section connecting interface of the commutator (2) through screwing;

The commutator (2) is formed by connecting three parts of a water inlet section connecting port (210), four recharging water communicating vessels (220-1-220-4) and a sleeve heat exchange section connecting interface (230); the reverser (2) guides recharging water between the outer tube and the inner tube of the sleeve heat exchange section (5) to the water inlet section connecting port (210) through the recharging water communicating vessel, guides recharging water into the water inlet section through screwing connection with the water inlet external thread (112) at the top end of the water inlet section, and guides recharging water into the ground from the recharging inlet at the bottommost end of the water inlet section;

The sleeve heat exchange section (5) is composed of an axial flow water pump section, a sleeve heat exchange section connector and a sleeve heat exchange section pipeline, wherein the sleeve heat exchange section connector is connected with adjacent sleeve heat exchange section pipelines and is connected into any length according to the requirement;

The sleeve heat exchange section pipeline consists of a sleeve heat exchange section inner pipe and a sleeve heat exchange section outer pipe; inner tube of sleeve heat exchange section and sleeve the lengths of the outer tubes of the heat exchange sections are equal, setting the length of the steel wire rod as Hn;

The sleeve heat exchange section connector consists of a sleeve heat exchange section outer tube connector, a sleeve heat exchange section inner tube connector and a sleeve heat exchange section clamping piece; the sleeve heat exchange section clamping piece is used for fixing the axle center between the sleeve heat exchange section outer tube connector and the sleeve heat exchange section inner tube connector; the sleeve heat exchange section inner pipe connector is adjacent to the sleeve heat exchange section inner pipe, and the sleeve heat exchange section outer pipe connector is connected with the adjacent sleeve heat exchange section outer pipe;

The axial flow water pump section is composed of a sleeve heat exchange section inner pipe and a well submersible pump, the well submersible pump is arranged in the middle of the sleeve heat exchange section inner pipe, and a sealing ring is used for sealing the axial flow water pump between a well submersible pump suction pipe and the sleeve heat exchange section inner pipe;

the top thermal-volt power generation module (6) is composed of a pipe wall type thermal-volt power generation section and a top heat exchange module;

the pipe wall type thermal-voltage power generation section consists of pipe wall type thermal-voltage power generation basic modules;

The pipe wall type thermal voltage power generation basic module consists of a pipe wall type thermal voltage power generation basic module shell (471), a pipe wall type thermal voltage power generation module (472), a pipe wall type thermal voltage power generation basic module inner layer (473) and a thermal voltage module support frame pipe wall type thermal voltage power generation basic module sealing ring (474-1, 474-2):

The top heat exchange module comprises a heat exchange connecting pipe, a bottom heat exchange joint and a top heat exchange joint;

The turbine power generation module (7) adopts an ORC generator, and working medium output by a working medium pump of the generator is input into a turbine working medium inflow pipe; the turbine working medium outflow pipe outputs the heated working medium and is connected to an expander working medium input interface of the ORC generator; the water inlet section connecting port (210) of the commutator is composed of a water inlet section connecting shell (212) and a recharging water connecting top cover (214); the water inlet section connecting shell is made of metal materials and is of a tubular structure, a recharging water connecting top cover (214) is welded on the upper side, and water inlet pipe connecting threads (213) are formed on the lower side; the water inlet pipe connecting screw thread is an internal screw thread and is screwed with the water inlet external screw thread (112) of the water inlet pipe;

The recharging water communicating vessel (220-1-220-4) is made of metal materials, the outside is a solid body, called a main body fan ring column (224), the inside is hollowed out to be hollowed out a fan ring column (223), and the top surface of the main body fan ring column is the top surface (222) of the recharging water communicating vessel; the bottom surface of the main body fan ring column is called as the bottom surface (221) of the recharging water communicating vessel;

The sleeve heat exchange section connecting interface (230) consists of a sleeve heat exchange section interface bottom plate (234), a sleeve heat exchange section outer pipe interface (231) and a sleeve heat exchange section inner pipe interface (232), wherein the sleeve heat exchange section outer pipe interface (231) and the sleeve heat exchange section inner pipe interface (232)

Welded on the interface bottom plate (234) of the sleeve heat exchange section, and the welded part is sealed;

The sleeve heat exchange section interface bottom plate (234) is disc-shaped, the radius of the disc is the same as that of the recharging water connection top cover (214), and Ra is the radius of the recharging water connection top cover; the upper sides of the four double-pipe heat exchange sections are uniformly distributed with the recharging water inlets (233-1, 233-2, 233-3 and 233-4) of the hollowed-out double-pipe heat exchange sections; the shape and the size of the recharging water inlets of the four sleeve heat exchange sections are the same as those of recharging water communication interfaces (211-1, 211-2, 211-3 and 211-4) of the recharging water connection top cover, and the emptying position is also the same as that of the recharging water communication interfaces of the recharging water connection top cover;

The outermost side of the sleeve heat exchange section joint bottom plate (234) is a sleeve heat exchange section outer tube joint welding part (235) for welding a sleeve heat exchange section outer tube joint; the middle of the interface bottom plate of the sleeve heat exchange section is hollowed into a round shape, the hollowed area is called a sleeve heat exchange section geothermal water inlet (244), and the radius of the sleeve heat exchange section geothermal water inlet is set to be r2; the outer side of the geothermal water inlet (244) of the sleeve heat exchange section is provided with a welding part (236) of an inner pipe interface of the sleeve heat exchange section;

The outer tube interface (231) of the sleeve heat exchange section is of a tubular structure, and is made of metal materials, the outer radius is the same as the radius of the bottom plate of the interface of the sleeve heat exchange section, ra is set, and the inner radius is set to be R6, so that the inner radius R6 is larger than the outer circle radius R1 of the cross section of the recharging communication vessel; the lower side is welded with the bottom plate of the interface of the sleeve heat exchange section, the upper side is processed into an internal thread called as an internal thread (237) of the interface of the outer tube of the sleeve heat exchange section, and the internal thread is screwed with the outer tube of the sleeve heat exchange section; setting the height of an outer tube interface of the sleeve heat exchange section as H1; the height of the internal thread of the outer pipe joint of the sleeve heat exchange section is H2, the minor diameter of the internal thread is 2r4, and r4 is larger than the internal radius r6 of the outer pipe joint of the sleeve heat exchange section;

The inner pipe connector of the sleeve heat exchange section (232) is of a tubular structure, is made of metal materials, has the same inner radius as the radius of the geothermal water inlet of the sleeve heat exchange section on the bottom plate of the sleeve heat exchange section connector, and is r2, and has the outer radius of r5; the lower side is welded with the bottom plate of the interface of the sleeve heat exchange section, the upper side is processed into external threads, which are called external threads (239) of the interface of the inner tube of the sleeve heat exchange section, and the external threads are screwed with the inner tube of the sleeve heat exchange section; the height of the inner pipe interface of the sleeve heat exchange section is the same as that of the outer pipe interface of the sleeve heat exchange section, and H1 is adopted; the height of the external thread of the inner pipe interface of the sleeve heat exchange section is the same as that of the internal thread of the outer pipe interface of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread is 2r3; in the top thermal-voltage power generation module (6), a tube wall type thermal-voltage power generation basic module shell (471) is of a tubular structure and is made of a metal material with good thermal conductivity; the inner radius of the shell of the tube wall type thermal-voltage power generation basic module is the same as the inner radius of the inner tube interface of the sleeve heat exchange section, and is r2; the outer radius of the shell of the pipe wall type thermal-voltage power generation basic module is the same as the outer radius of the inner pipe interface of the sleeve heat exchange section, and is r5; the lower end of the shell of the pipe wall type thermoelectric generation basic module is processed into an internal thread, which is called as an internal thread (475) of the shell of the pipe wall type thermoelectric generation basic module; the upper end of the shell of the pipe wall type thermal-voltage power generation basic module is processed into external threads, namely external threads (476) of the shell of the pipe wall type thermal-voltage power generation basic module, which have the same specification as external threads (239) of an inner pipe interface of a sleeve heat exchange section; the inner threads of the shell of the pipe wall type thermoelectric generation basic module are matched with the outer threads of the shell of the pipe wall type thermoelectric generation basic module, and a tubular structure is formed after screwing; the heights of the internal threads of the pipe wall type thermal-voltage power generation base module and the external threads of the pipe wall type thermal-voltage power generation base module are H2, and the heights of the outer shells of the pipe wall type thermal-voltage power generation base module are Hn+h3+H2;

The pipe wall type thermal-voltage power generation module (472) is composed of a plurality of thermoelectric power generation chips; the cold end of the thermoelectric power generation chip is welded on the inner side of the shell (471) of the pipe wall type thermoelectric power generation base module, and the hot end of the thermoelectric power generation chip is welded on the outer side of the inner layer (473) of the pipe wall type thermoelectric power generation base module;

the thermoelectric generation chips are aligned in the horizontal direction and the vertical direction, and are arranged in rows in the horizontal direction and are arranged in columns in the vertical direction; the number of the thermoelectric generation chips in each row is the same, and the number of the thermoelectric generation chips in each column is the same; the connection relation between each row of thermoelectric generation chips is serial connection; after the thermoelectric power generation chips of each row are connected in series, the output power lines of each row are connected in parallel; forming a power output end of a tube wall type thermal-voltage power generation basic module;

The photovoltaic module support frame is composed of a main body (461) of the photovoltaic module support frame and side ears (462-1, 462-2, 462-3 and 462-4) of the four photovoltaic module support frame and is made of metal materials; side ear shape of support frame of thermal volt module the sleeve heat exchange section clamping pieces (330) are the same, symmetrically welded on the outer side of the main body of the support frame of the thermal-voltage module; the main body of the support frame of the thermal-voltage module is of a tubular structure, and the height is h1; the thermal-voltage support frame is used for limiting the distance between the pipe wall type thermal-voltage power generation basic module and the outer pipe connector of the sleeve heat exchange section and is matched with the outer pipe connector of the water flow section for use;

The upper end and the lower end of the pipe wall type thermal-voltage power generation module are provided with pipe wall type thermal-voltage power generation base module sealing rings (474-1, 474-2) which are embedded between the pipe wall type thermal-voltage power generation base module shell and the pipe wall type thermal-voltage power generation base module inner layer, so that the pipe wall type thermal-voltage power generation module is sealed;

The inner layer (473) of the tube wall type thermal-voltage power generation basic module is of a tubular structure, and the height is Hn+h3; the upper end is flush with the shell of the pipe wall type thermal-voltage power generation basic module; the outer diameter is r2 minus the thickness of the tube wall type thermal-voltage power generation module by 2 times;

In the top heat exchange module, a heat exchange connecting pipe is of a tubular structure and is made of a metal material; the part of the heat exchange tube connected with the middle space is a passage through which the geothermal water inner tube (511) flows; three layers of cylindrical cavities which are axially parallel to the heat exchange connecting pipe are distributed on the pipe wall from inside to outside on concentric circles of the cross section, and are respectively a working medium inflow pipeline (512-a, 512-b), a geothermal water outflow pipeline (513-a, 513-b) and a working medium outflow pipeline (514-a, 514-b);

At the lower side of the heat exchange connecting pipe: a circular convex edge with a circular cross section is arranged between the working medium inflow pipeline and the geothermal water inner pipe and is called an inner tenon (517-a, 517-b); a circular convex edge with a circular cross section is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline and is called a middle tenon (516-a, 516-b); the section between the geothermal water outflow pipe and the working medium outflow pipe is a circular convex edge, which is called an outer tenon (515-a, 515-b); working medium flows out of the outer side of the pipeline and is processed into external threads, which are called external threads (518-a, 518-b) at the lower end of the heat exchange tube;

At the upper edge of the heat exchange connecting pipe: a circular concave edge with a section of ring is arranged between the working medium inflow pipeline and the geothermal water inner pipe and is called an inner layer mortise (521-a, 521-b); a circular concave edge with a section of ring shape is arranged between the working medium inflow pipeline and the geothermal water outflow pipeline and is called a middle-layer mortise (522-a, 522-b); a circular concave edge with a section of ring shape is arranged between the geothermal water outflow pipeline and the working medium outflow pipeline and is called as outer mortises (523-a, 523-b); working medium flows out of the outer side of the pipeline and is processed into internal threads, which are called internal threads (524-a, 524-b) at the upper end of the heat exchange tube;

Adjacent heat exchange connecting pipes are connected through screwing; when the external threads (518-a, 518-b) at the lower end of the heat exchange tube are screwed with the internal threads (524-a, 524-b) at the upper end of the heat exchange tube of the next adjacent heat exchange connecting tube, sealing rings are added to the inner mortises (521-a, 521-b), the middle mortises (522-a, 522-b) and the outer mortises (523-a, 523-b);

When adjacent heat exchange connecting pipes are connected through screwing, inner-layer tenons (517-a, 517-b), middle-layer tenons (516-a, 516-b) and outer-layer tenons (515-a, 515-b) of the upper heat exchange connecting pipes are in one-to-one correspondence with inner-layer mortises (521-a, 521-b), middle-layer mortises (522-a, 522-b) and outer-layer mortises (523-a, 523-b) of the lower heat exchange connecting pipes, and under the action of a sealing ring, geothermal water inner pipes, working medium inflow pipelines, geothermal water outflow pipelines and working medium outflow pipelines are isolated and sealed;

The protruding heights of the inner tenon, the middle tenon and the outer tenon are larger than the recessed depths of the inner mortise, the middle mortise and the outer mortise, and the protruding parts are called a homogeneous annular channel, so that working medium inflow pipelines of the same pipeline are communicated through the homogeneous annular channel, and geothermal water outflow pipelines of the same pipeline are communicated through the homogeneous annular channel; the working medium outflow pipelines of the same pipeline are communicated through a homogeneous annular channel;

the power output mode of the power generation device is as follows:

2. The deep well heat exchange sleeve geothermal in-situ thermal power generation device of claim 1, wherein:

the sleeve heat exchange section pipeline is divided into a sleeve heat exchange section inner pipe (310) and a sleeve heat exchange section outer pipe (320);

The inner tube (310) of the sleeve heat exchange section is of a tubular structure and is made of a material with low heat conductivity coefficient and high elastic modulus, and the inner radius of the inner tube of the sleeve heat exchange section is the same as the inner radius of the inner tube interface of the sleeve heat exchange section and is r2; outer radius of inner tube of sleeve heat exchange section and sleeve the outer radius of the inner pipe interface of the heat exchange section is the same, r5; the two ends of the inner tube of the sleeve heat exchange section are processed into internal threads, namely internal threads (311-1 and 311-2) of the inner tube of the sleeve heat exchange section, which are matched with external threads (239) of the inner tube interface of the sleeve heat exchange section; the inner pipe of the lowest sleeve heat exchange section is screwed with the outer thread (239) of the inner pipe joint of the sleeve heat exchange section through the inner thread of the inner pipe of the sleeve heat exchange section, so that the sleeve heat exchange section and the inner pipe joint are combined into a whole;

The outer tube (320) of the sleeve heat exchange section is of a tubular structure and is made of a metal material, the inner radius of the outer tube of the sleeve heat exchange section is the same as the inner radius of the joint of the outer tube of the sleeve heat exchange section, and r6 is the inner radius; outer radius of outer tube of sleeve heat exchange section and sleeve the outer radius of the outer tube interface of the heat exchange section is the same, is Ra; external threads (321-1, 321-2) are machined at two ends of the outer tube of the sleeve heat exchange section and are matched with internal threads (237) of the interface of the outer tube of the sleeve heat exchange section; the outer tube of the lowest sleeve heat exchange section is screwed with the inner thread (237) of the outer tube interface of the sleeve heat exchange section through the outer thread of the outer tube of the sleeve heat exchange section, and is combined into a whole;

the sleeve heat exchange section connector consists of a sleeve heat exchange section outer tube connector (350), a sleeve heat exchange section inner tube connector (340) and sleeve heat exchange section clamping pieces (330-1, 330-2, 330-3 and 330-4);

The inner tube connector (340) of the sleeve heat exchange section is used for connecting the inner tubes of the adjacent sleeve heat exchange sections, is tubular and is made of a material with low heat conductivity coefficient and high elastic modulus; the inner radius of the inner tube connector (340) of the sleeve heat exchange section is the same as the inner radius of the inner tube interface of the sleeve heat exchange section, and is r2; the outer radius of the inner tube connector of the sleeve heat exchange section is the same as the outer radius of the inner tube connector of the sleeve heat exchange section, r5; external threads (341-1, 341-2) are formed at the two ends of the inner tube connector of the sleeve heat exchange section and are matched with the internal threads (311-1, 311-2) of the inner tube of the sleeve heat exchange section; the height of the external thread of the inner tube connector of the sleeve heat exchange section is the same as the height of the internal thread of the interface of the outer tube of the sleeve heat exchange section, H2 is adopted, and the major diameter of the external thread of the inner tube connector of the sleeve heat exchange section is 2r3;

A sleeve heat exchange section inner tube connector support body (342) is arranged between the external threads of the sleeve heat exchange section inner tube connectors at the two ends; setting the height of the inner tube connector support body as h3, wherein h3 is larger than the height h1 of the clamping piece of the sleeve heat exchange section;

four inner pipe clamping grooves (343-1, 343-2, 343-3, 343-4) of the sleeve heat exchange section are uniformly distributed on an inner pipe connector support body (342) of the sleeve heat exchange section and are used for embedding sleeve heat exchange section clamping pieces; the pipe clamping groove in the sleeve heat exchange section is hollowed out according to the shape of the pipe clamping piece in the sleeve heat exchange section;

The sleeve heat exchange section outer tube connector (350) is used for connecting adjacent sleeve heat exchange section outer tubes, is tubular and is made of metal materials; the inner radius of the outer tube connector of the sleeve heat exchange section is the same as the inner radius of the outer tube connector of the sleeve heat exchange section, r6; the outer radius of the outer tube connector of the sleeve heat exchange section is the same as the outer radius of the outer tube connector of the sleeve heat exchange section, and is Ra; the two ends of the outer tube connector of the sleeve heat exchange section are processed into inner threads, namely inner threads (351-1, 351-2) of the outer tube connector of the sleeve heat exchange section, which are matched with outer threads (321-1, 321-2) of the outer tube of the sleeve heat exchange section; the height of the internal thread of the outer tube connector of the sleeve heat exchange section is the same as that of the internal thread of the outer tube interface of the sleeve heat exchange section, H2 is adopted, and the minor diameter of the internal thread of the outer tube connector of the sleeve heat exchange section is 2r4;

A sleeve heat exchange section outer tube connector support body (352) is arranged between the inner threads of the sleeve heat exchange section outer tube connectors at the two ends; setting the height of the outer tube connector support body as h3, wherein h3 is larger than the height h1 of the clamping piece of the sleeve heat exchange section;

Four sleeve heat exchange section outer tube clamping grooves (353-1, 353-2, 353-3, 353-4) are uniformly distributed on the sleeve heat exchange section outer tube connector support body and are used for embedding sleeve heat exchange section clamping pieces; the sleeve heat exchange section outer pipe clamping groove is hollowed out according to the shape of the sleeve heat exchange section outer pipe clamping piece;

The sleeve heat exchange section clamping pieces (330, 330-1, 330-2, 330-3 and 330-4) are composed of sleeve heat exchange section outer pipe clamping pieces (331), inner and outer pipe positioning pieces (332) and sleeve heat exchange section inner pipe clamping pieces (333), the outer pipe clamping pieces are columnar with arc sections, and the columnar height is h1; the radius of the arc is larger than the inner radius r6 of the inner radius of the outer tube of the sleeve heat exchange section and slightly smaller than r4; the section of the inner pipe clamping piece is in an arc column shape, and the column height is h1; the radius of the arc is larger than r3 and slightly smaller than the outer radius r5 of the inner tube of the sleeve heat exchange section; the two sides of the inner and outer tube locating pieces are respectively welded with the outer tube clamping and fixing piece (331) of the sleeve heat exchange section and the inner tube clamping and fixing piece (333) of the sleeve heat exchange section, so that the inner and outer tube locating pieces (332), the outer tube clamping and fixing piece (331) of the sleeve heat exchange section and the inner tube clamping and fixing piece (333) of the sleeve heat exchange section are integrated.

3. The deep well heat exchange sleeve geothermal in-situ thermal power generation device of claim 1, wherein:

In the top heat exchange module, the bottom heat exchange joint is formed by combining a heat exchange joint external connecting pipe (543-a 543-b), a bottom joint outer pipe (536-a 536-b), a bottom joint middle pipe (537-a, 537-b), a bottom joint inner pipe (538-a 538-b), a bottom joint external threaded pipe (542-a 542-b), a heat exchange joint bottom plate (544, 544-a, 544-b), a heat exchange joint isolation plate (533, 533-a, 533-b) and a geothermal water connecting pipe (540-a, 540-b, 540-1-540-16), and all components are made of metal materials;

The heat exchange joint external connection pipes (543-a, 543-b), the bottom joint outer pipes (536-a, 536-b), the bottom joint middle pipes (537-a, 537-b), the bottom joint inner pipes (538-a, 538-b) and the bottom joint external thread pipes (542-a, 542-b) are all arranged on the heat exchange joint bottom plates (544, 544-a, 544-b); the heat exchange joint bottom plates (544, 544-a, 544-b) are annular, and are welded with heat exchange joint external connecting pipes (543-a, 543-b), bottom joint outer pipes (536-a, 536-b) and bottom joint middle pipes (537-a, 537-b) at the upper edges; the bottom joint inner tubes (538-a, 538-b) pass through the heat exchange joint bottom plate and are welded with the heat exchange joint bottom plate at the side surfaces; welding the bottom joint external thread pipes (542-a, 542-b) at the lower edge;

the external connecting pipes (543-a, 543-b) of the heat exchange joint are of tubular structures, and the lower ends of the external connecting pipes are welded with the bottom plates (544, 544-a, 544-b) of the heat exchange joint; the upper side is provided with internal threads, which are called bottom joint internal threads (531-a, 531-b); the internal thread of the bottom joint is matched with the external threads (518-a, 518-b) at the lower end of the heat exchange pipe of the heat exchange connecting pipe and screwed;

The outer tubes (536-a, 536-b) of the bottom joint are of tubular structures, and the lower ends of the outer tubes are welded with the bottom plate of the heat exchange joint; the upper part is provided with outer mortises (532-a, 532-b) of the bottom joint, the size and the depth of the outer mortises of the bottom joint are completely the same as those of the outer mortises (523-a, 523-b) of the heat exchange connecting pipe, and the bottom is provided with a plurality of outer pipe side holes;

the middle pipe of the bottom joint is of a tubular structure, the lower end is welded with the bottom plate of the heat exchange joint; the upper part is provided with bottom joint middle mortises (534-a, 534-b), the sizes and depths of the bottom joint middle mortises (534-a, 534-b) are completely the same as those of middle layer mortises (522-a, 522-b) of the heat exchange connecting pipes, and the bottom part is provided with a plurality of middle pipe side holes;

The bottom joint inner tube passes through the heat exchange joint bottom plate and is welded with the heat exchange joint bottom plate at the side surface; the upper part is provided with bottom joint inner mortises (535-a, 535-b), and the sizes and the depths of the bottom joint inner mortises (535-a, 535-b) are completely the same as those of inner mortises (521-a, 521-b) of the heat exchange connecting pipes; the lower part is processed into a lower mortise of the bottom joint; the lower mortise of the bottom joint is matched with the pipe wall at the upper end of the pipe wall type thermoelectric generation basic module;

the bottom joint external thread pipes (542-a, 542-b) are of tubular structures and are provided with external threads; the external thread specification is matched with internal threads (351-1, 351-2) of the outer tube connector of the sleeve heat exchange section;

the heat exchange joint isolation plates (533, 533-a, 533-b) are provided with a plurality of holes corresponding to the heat exchange joint bottom plates (544-a, 544-b) and correspond to the geothermal water connecting pipes (540-a, 540-b, 540-1, 540-2-540-16);

the upper part of the geothermal water connecting pipe is welded with the heat exchange joint isolation plate, and the lower part is welded with the heat exchange joint bottom plate;

The heat exchange joint isolation plates (533, 533-a, 533-b) are of annular structures, and the inner sides of the upper edges of the outer tubes (536-a, 536-b) of the bottom joints are welded with the outer sides of the heat exchange joint isolation plates; the outer sides of the upper edges of the middle tubes (537-a, 537-b) of the bottom joint are welded with the inner sides of the heat exchange joint isolating plates;

The external threaded pipes (542-a, 542-b) of the bottom joint are screwed with the external pipe connector (350) of the heat exchange section of the uppermost sleeve, and when the external threaded pipes are screwed, the lower mortises (546-a, 546-b) of the bottom joint are filled into sealing rings to be sealed with the pipe wall at the upper end of the uppermost pipe wall type thermal-voltage power generation basic module;

The lowest heat exchange connecting pipe is screwed with the bottom joint internal threads (531-a, 531-b) through the external threads (518-a, 518-b) at the lower end of the heat exchange pipe; when the heat exchange tube is screwed, the outer mortises (532-a, 532-b) of the bottom joint, the middle mortises (534-a, 534-b) of the bottom joint and the inner mortises (535-a, 535-b) of the bottom joint are added with sealing rings, so that the outer pipes (536-a, 536-b) of the bottom joint, the middle pipes (537-a, 537-b) of the bottom joint and the inner pipes (538-a, 538-b) of the bottom joint are respectively in sealing butt joint with the outer mortises (515-a, 515-b) of the heat exchange connecting pipes at the lowest side, the middle mortises (516-a, 516-b) and the inner mortises (517-a, 517-b) of the bottom joint;

The top heat exchange joint consists of a top connecting disc (560), top joint external threaded pipes (551, 551-a, 551-b), top joint external tenons (552, 552-a, 552-b), top joint middle tenons (553, 553-a, 553-b), top joint internal tenons (554, 554-a, 554-b), a turbine working medium inflow pipe (557), a turbine working medium outflow pipe (558) and an internal and external hot water connecting pipe (559); are all made of metal materials;

The shape and the height of the top joint external thread pipes (551, 551-a, 551-b) are completely the same as those of the external threads (518-a, 518-b) at the lower end of the heat exchange pipe; the shape and the height of the outer tenons (552, 552-a, 552-b) of the top joint are completely the same as those of the outer tenons (515-a, 515-b) of the heat exchange connecting pipe; the shape and the height of the tenons (553, 553-a, 553-b) in the top joint are completely the same as those of the tenons (516-a, 516-b) in the heat exchange connecting pipe; the shape and the height of the inner rabbet (554, 554-a, 554-b) of the top joint are identical to those of the inner rabbet (517-a, 517-b) of the heat exchange connecting pipe;

the lower end of the top connecting disc is welded with top joint external threaded pipes (551, 551-a, 551-b), top joint external tenons (552, 552-a, 552-b), top joint middle tenons (553, 553-a, 553-b) and top joint inner tenons (554, 554-a, 554-b) respectively;

A top hot water inner interface (555) is arranged in the middle of the top connecting disc; a top hot water external interface (556) is arranged between the top joint external tenons (552, 552-a, 552-b) and the top joint middle tenons (553, 553-a, 553-b); a turbine working medium outflow pipe (558) is arranged between the outer tenon of the top joint and the outer threaded pipes (551, 551-a, 551-b) of the top joint, and an inner hot water and outer hot water connecting pipe (559) is communicated with the top hot water inner interface (555) and the top hot water outer interface (556); a turbine working medium inflow pipe (557) is arranged between the inner rabbets (554, 554-a, 554-b) of the top joint and the middle rabbets (553, 553-a, 553-b) of the top joint.

4. The deep well heat exchange sleeve geothermal in-situ thermal power generation device of claim 3, wherein:

(a) The lower end of the axial flow water pump section is screwed with an inner pipe interface (232) of the sleeve heat exchange section connection interface; the lower end of the outer tube of the bottommost sleeve heat exchange section is screwed with a sleeve heat exchange section outer tube connector (231) of the sleeve heat exchange section connection connector;

5. The deep well heat exchange sleeve geothermal in-situ thermal power generation device of claim 3, wherein:

(e) The upper end of the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the next sleeve heat exchange section, and the outer tube connector of the sleeve heat exchange section is screwed with the outer tube of the sleeve heat exchange section; and the thermal-volt module supporting frames are embedded in the outer tube connector of the sleeve heat exchange section, and the required number is determined according to the height of the tube wall type thermal-volt power generation basic module section.

6. The deep well heat exchange sleeve geothermal in-situ thermal power generation device of claim 4, wherein:

(a) The bottom heat exchange joint is screwed with an uppermost sleeve heat exchange section outer pipe connector (350) through bottom joint external threaded pipes (542-a, 542-b), and when the bottom heat exchange joint is screwed, lower mortises (546-a, 546-b) of the bottom joint are filled into sealing rings to be sealed with the pipe wall at the upper end of the uppermost pipe wall type thermal-voltaic power generation basic module;

(b) The heat exchange connecting pipe is screwed with the bottom joint internal threads (531-a, 531-b) of the bottom heat exchange joint through the external threads (518-a, 518-b) at the lower end of the heat exchange pipe;

(c) The upper heat exchange connecting pipes are screwed with the inner threads (524-a, 524-b) of the upper ends of the heat exchange connecting pipes through the outer threads (518-a, 518-b) of the lower ends of the heat exchange pipes, and the number of the screwed heat exchange connecting pipes is selected according to the requirement of the connection length;