CN113465407B - Cross flow state heat exchange equipment based on heat convection process - Google Patents

Abstract

The invention discloses a cross flow state heat exchange device based on a heat convection process, which comprises a shell, a plurality of groups of heat exchange plates and at least two groups of fixing mechanisms, wherein at least two groups of fixing mechanisms are arranged in the shell, a plurality of groups of heat exchange plates are arranged on the fixing mechanisms, and at least two groups of fixing mechanisms enable the plurality of groups of heat exchange plates to be fixed in the shell.

Description

Cross flow state heat exchange equipment based on heat convection process

Technical Field

The invention relates to the technical field of cross flow state heat exchange of heat convection, in particular to cross flow state heat exchange equipment based on a heat convection process.

Background

Devices that transfer heat from a hot fluid to a cold fluid are referred to as heat exchange devices. The heat exchanger is very commonly applied in industrial production, and plays an important role in various industrial departments such as chemical industry, power, metallurgy, building, mechanical manufacturing, food, medicine, aerospace and the like. Therefore, the optimal design of the heat exchanger to improve the heat exchange efficiency is necessary for the industry using the heat exchanger.

The traditional plate heat exchanger is composed of parts such as a heat transfer sheet made of metal materials, a sealing rubber mat, a clamping bolt, a pressure plate whole machine frame and the like. In order to make the heat exchange medium form turbulent flow and improve the heat exchange efficiency, various 'corrugations', such as zigzag, stepped, net-shaped or herringbone corrugations, need to be milled, pressed and brazed on the heat transfer plates, and are currently widely applied in herringbone mode.

In the prior art, regardless of the type of corrugation produced by any means, the metal heat transfer sheet itself is machined to produce "peaks" and "valleys" of the irregular shape. This machining brings about two drawbacks: one is easy to form 'point' corrosion, and the other is poor sealing performance; affecting the service life and the pressure bearing capacity.

However, in the device, the heat exchange plate is used for fixing the cold and hot flow pipes, is used for conducting heat in the hot fluid, does not contact with the hot fluid, does not need to be internally provided with 'corrugations', and reduces the processing cost.

Moreover, in this device, hot flow pipe and cold flow pipe mutually perpendicular set up, make the cold flow pipe can be many times run through the hot flow pipe, make the cold fluid can carry out cold and hot exchange through the shunt tubes many times with the inside hot-fluid of hot flow pipe to the choked flow ring restricts the velocity of flow of the hot-fluid in the hot flow pipe, makes the cold fluid can fully carry out cold and hot exchange with the hot-fluid, and then has improved heat exchange efficiency.

Disclosure of Invention

The invention aims to provide cross flow state heat exchange equipment based on a heat convection process so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the heat exchange equipment comprises a shell, a plurality of groups of heat exchange plates and at least two groups of fixing mechanisms, wherein the fixing mechanisms are arranged in the shell, the heat exchange plates are arranged on the fixing mechanisms, and the fixing mechanisms enable the heat exchange plates to be fixed in the shell. The fixed establishment carries out the rigidity to a plurality of groups heat transfer board, make a plurality of groups heat transfer board laminating be in the same place, the heat transfer board provides the support for the cold and hot exchange between the cold and hot fluid, the hot-fluid conducts the heat to the heat transfer board on, the heat transfer board heats the cold flow body when cold and hot fluid carries out cold and hot exchange, mutually the laminating carries out heat-conduction together between the heat transfer board, when the velocity of flow of the hot fluid reduces and leads to the temperature reduction of heat transfer board in a set of heat transfer board, the heat transfer board can obtain the heat through other heat transfer boards, and carry out cold and hot exchange with inside cold flow body, make the efficiency of total cold and hot exchange keep unchangeable.

As a preferred technical scheme, a plurality of groups of heat exchange plates are internally provided with hot flow pipes and cold flow pipes, a plurality of groups of branch flow pipes are arranged on the plurality of groups of cold flow pipes, and the plurality of groups of branch flow pipes penetrate through the hot flow pipes; at least two sets of fixed establishment all includes upper fixed plate, bottom plate, power plate upper end is fixed with upper fixed plate, and power plate lower extreme is fixed with the bottom plate. The hot flow pipe provides the passageway for the hot-fluid flow heat transfer board, and the cold flow pipe provides the passageway for the cold fluid flow heat transfer board, and the shunt tubes shunts the cold fluid that flows through in the cold flow pipe, makes the cold fluid pass through the shunt tubes when flowing through the heat transfer pipe, can obtain more heats, and upper fixed plate and bottom plate mutually support and fix the heat transfer board, make the heat transfer board fix in the shell, and the power board provides the power of fixing the heat transfer board for upper fixed plate and bottom plate.

According to a preferable technical scheme, a plurality of groups of heat exchange plates are also provided with heat transfer assemblies, each group of heat transfer assemblies comprises an evaporation cabin, a heat transfer cabin and a transmission pipe, the evaporation cabin is arranged at the lower right part inside the heat exchange plate, the heat transfer cabin is arranged at the upper left part inside the heat exchange plate, one end of the heat transfer cabin is connected with the evaporation cabin through a pipeline, one end of the transmission pipe is connected with the other end of the heat transfer cabin through a pipeline, the other end of the transmission pipe is connected with the evaporation cabin through a pipeline, a solution with a low boiling point is arranged in the evaporation cabin, and the transmission pipe is positioned at the outer side of the heat exchange plate. Solution in the evaporation chamber absorbs heat in the heat flow pipe conduction to the heat exchange plate and evaporates, the heat transfer chamber provides the space of storage for steam, the transmission pipe transmits the solution after the cooling, make solution enter into the evaporation chamber again, steam after the solution evaporation enters into the heat transfer chamber along the pipeline, steam assembles and heats the position of heat transfer chamber place in the heat transfer chamber, steam dispels the heat condensation at the position of cold flow pipe behind the cold flow pipe through the transmission pipe flow, along with flow to the evaporation chamber again through the transmission pipe.

As a preferred technical scheme, the plurality of groups of hot flow pipes and the plurality of groups of cold flow pipes are S-shaped pipelines, the hot flow pipes and the cold flow pipes are arranged in a mutually perpendicular mode, and the hot flow pipes are provided with a plurality of groups of choking rings. The hot flow pipe and the cold flow pipe are perpendicular to each other, so that the cold flow pipe can penetrate through the hot flow pipe for multiple times, cold fluid can be subjected to cold and heat exchange with hot fluid in the hot flow pipe for multiple times through the flow dividing pipe, and the flow blocking ring limits the flow speed of the hot fluid in the hot flow pipe, so that the cold fluid can be sufficiently subjected to cold and heat exchange with the hot fluid.

As a preferred technical scheme, a condensation pipe is arranged at one end, close to the heat transfer cabin, of the transmission pipe, the condensation pipe penetrates through the cold flow pipe and is located inside the cold flow pipe, and the condensation pipe and the plurality of groups of shunt pipes are all in a branch shape. The condenser pipe provides the passageway for the steam flow through the cold flow pipe, and when steam passed through the condenser pipe flow through the cold flow pipe, cold fluid and high temperature steam in the cold flow pipe carry out cold and hot exchange, make steam cool down and condensate into liquid once more in the cold flow pipe, and the cold fluid after carrying out cold and hot exchange with steam then the temperature rise, and then shorten the heat transfer process of cold fluid and hot-fluid.

According to the preferable technical scheme, at least two groups of the upper fixing plates, at least two groups of the lower fixing plates and at least two groups of the power plates are of hollow structures, transmission shafts are arranged in the at least two groups of the upper fixing plates and the at least two groups of the lower fixing plates, limiting plates are arranged on the lower end faces of the left ends of the upper fixing plates and the upper end faces of the left ends of the lower fixing plates, fixing blocks are arranged on the transmission shafts, and turbines are arranged at the right ends of the transmission shafts. The transmission shaft provides the support for the installation of fixed block, the transmission shaft provides power for the position of fixed block removes, make the fixed block remove in upper fixed plate and bottom plate, the fixed block promotes a plurality of groups heat transfer board under the drive of transmission shaft, the limiting plate is restricted heat transfer board position on upper fixed plate and bottom plate, the fixed block is fixed heat transfer board's position with the limiting plate mutually supported, the worm in turbine and the power board drives, make the transmission shaft pass through turbine and worm and obtain rotation power.

As a preferred technical scheme, driving shafts are arranged in at least two groups of power plates, worms are arranged at two ends of each driving shaft, power blocks are arranged on the driving shafts, the upper ends of the driving shafts are rotatably connected with an upper fixing plate, the lower ends of the driving shafts are rotatably connected with a lower fixing plate, and the worms at the upper ends and the lower ends of the driving shafts are respectively rotatably connected with the two groups of turbines. The driving shaft passes through the worm to rotary power transmits, the power piece rotates and installs on the driving shaft, exert on the power piece and when making the power piece carry out the position removal in the power plate when external force, the power piece makes the driving shaft rotate in the power plate through the threaded connection with between the driving shaft, the power piece makes two sets of transmission shafts rotate through a set of driving shaft, and carry out the rigidity to the heat transfer plate through the fixed block, for carrying out the rigidity's mode to the heat transfer plate through a plurality of screw groups, this formula is simpler, and fast, and it is more convenient to dismantle and change the heat transfer plate.

As a preferred technical scheme, sliding grooves are formed in the positions, corresponding to the power blocks, of the at least two groups of power plates, one ends of the power blocks are located in the sliding grooves, a plurality of groups of positioning holes are formed in the two sides of the sliding grooves of the at least two groups of power plates, at least two groups of through holes are formed in the power blocks, and the through holes are the same as the positioning holes in diameter. The spout restricts the slip direction of power piece in the power board, provides the passageway for the slip of power piece in the power board simultaneously, and the locating hole mutually supports with the through-hole and provides the passageway for the fixed position of power piece, still includes three at least groups of fixed columns on the power board, and the fixed column is fixed the position of power piece on the power board through locating hole and through-hole.

According to the preferable technical scheme, the pipe diameter of the transmission pipe is smaller than that of a pipeline for connecting the heat transfer cabin and the evaporation cabin, a heat insulation layer is arranged in the shell and located between the at least two groups of fixing mechanisms, and the transmission pipe is located in the heat insulation layer. The pipe diameter of transmission pipe is less than the pipe diameter of the pipeline that the pipe connection was used for steam enters into the heat transfer cabin, piles up in the heat transfer cabin in a large number for the temperature in the heat transfer cabin risees, and then makes the heat transfer cabin heat the heat transfer board plate body on every side, and the insulating layer is kept apart heat transfer board and external world, makes the temperature in the heat transfer board be difficult for losing, in the transmission pipe position insulating layer, can prevent that the transmission pipe from being evaporated once more when transmitting the solution after the condensation.

As a preferred technical scheme, the plurality of groups of hot flow pipes are composed of a plurality of groups of straight pipes and U-shaped pipes, two ends of each group of U-shaped pipes are respectively connected with water outlets and water inlets of the two groups of straight pipes, and the plurality of groups of choking rings are respectively arranged at water outlets of the plurality of groups of straight pipes.

Compared with the prior art, the invention has the beneficial effects that:

1. the heat transfer board heats the cold fluid when cold and hot fluid carries out cold heat exchange, pastes each other between the heat transfer board and carries out heat-conduction together, and when the velocity of flow of hot fluid reduces and leads to the temperature reduction of heat transfer board in a set of heat transfer board, the heat transfer board can obtain the heat through other heat transfer boards to carry out cold and hot exchange with inside cold fluid, make the efficiency of total cold and hot exchange keep unchangeable.

2. The shunt pipe shunts cold fluid flowing through the cold flow pipe, so that more heat can be obtained when the cold fluid flows through the heat flow pipe through the shunt pipe.

3. The hot flow pipe and the cold flow pipe are perpendicular to each other, so that the cold flow pipe can penetrate through the hot flow pipe for multiple times, cold fluid can be subjected to cold and heat exchange with hot fluid inside the hot flow pipe for multiple times through the flow dividing pipe, the flow rate of the hot fluid in the hot flow pipe is limited by the flow blocking ring, cold fluid can be sufficiently subjected to cold and heat exchange with the hot fluid, and the heat exchange efficiency is further improved.

4. The cold fluid in the cold flow pipe and the high-temperature steam carry out cold and heat exchange, so that the steam is cooled in the cold flow pipe and condensed into liquid again, and the cold fluid after the cold and heat exchange with the steam is heated, so that the heat exchange process of the cold fluid and the hot fluid is shortened.

5. The power block makes two sets of transmission shafts rotate through a set of driving shaft to carry out the rigidity to the heat exchange plate through the fixed block, for carrying out the rigidity's mode to the heat exchange plate through a plurality of groups screw, this formula is simpler, swift, and is more convenient to dismantle and change the heat exchange plate moreover.

Drawings

FIG. 1 is a schematic diagram of a right-view half-section of the overall structure of a cross-flow heat exchange apparatus based on a thermal convection process according to the present invention;

FIG. 2 is a front half-section schematic view of the overall configuration of a cross-flow heat exchange apparatus of the present invention based on a thermal convection process;

FIG. 3 is a schematic view of the connection structure of the heat transfer assembly and the heat exchange plate of the cross flow state heat exchange device based on the heat convection process of the present invention;

FIG. 4 is a schematic view of the connection structure of the heat exchange plate, the cold flow pipe and the hot flow pipe of the cross flow state heat exchange device based on the heat convection process according to the present invention;

FIG. 5 is a schematic diagram of the structure of the bypass pipes and the condenser pipes of the cross-flow heat exchange apparatus based on the thermal convection process according to the present invention;

FIG. 6 is a schematic structural diagram of area A in FIG. 2 of a cross-flow heat exchange apparatus based on a thermal convection process according to the present invention;

FIG. 7 is a schematic view of the internal structure of the fixing mechanism of the cross-flow heat exchange apparatus based on the heat convection process of the present invention;

FIG. 8 is a schematic diagram of the internal structure of the power plate of the cross-flow heat exchange apparatus based on the heat convection process of the present invention.

The reference numbers are as follows: 1. a housing; 2. a heat exchange plate; 3. a fixing mechanism; 1-1, a heat insulation layer; 2-1, a hot flow pipe; 2-2, cold flow pipe; 2-3, a shunt tube; 2-4, a choking ring; 2-5, an evaporation chamber; 2-6, a heat transfer chamber; 2-7, a conveying pipe; 2-8, a condenser pipe; 3-1, fixing the plate; 3-2, a lower fixing plate; 3-3, a power plate; 3-4, a transmission shaft; 3-5, limiting plates; 3-6, fixing blocks; 3-7, a turbine; 3-8, driving shaft; 3-9, a worm; 3-10, a power block; 3-11, positioning holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back) are involved in the embodiment, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The embodiment is as follows: as shown in fig. 1-8, the heat exchanger comprises a housing 1, a plurality of heat exchanging plates 2, and two fixing mechanisms 3, wherein the two fixing mechanisms 3 are fixed at the left and right ends inside the housing 1, the heat exchanging plates 2 are arranged on the two fixing mechanisms 3, the heat exchanging plates 2 are fixed inside the housing 1 by the fixing mechanisms 3, a heat insulating layer 1-1 is fixed inside the housing 1, the heat insulating layer 1-1 is located between the fixing mechanisms 3, and the heat insulating layer 1-1 is made of a heat insulating material.

The heat exchange plates 2 are internally provided with hot flow pipes 2-1 and cold flow pipes 2-2, the cold flow pipes 2-2 are welded on the cold flow pipes 2-2, the component flow pipes 2-3 penetrate through the hot flow pipes 2-1 and are positioned inside the hot flow pipes 2-1, the left ends of the cold flow pipes 2-2 are connected with external equipment for providing cold fluid, the right ends of the cold flow pipes 2-2 are connected with external equipment for the cold fluid to be heated, the right lower ends of the hot flow pipes 2-1 are connected with external equipment for providing hot fluid, and the left upper ends of the hot flow pipes 2-1 are connected with the external equipment for receiving the cooled hot fluid.

The hot flow pipes 2-1 and the cold flow pipes 2-2 are S-shaped pipes, the hot flow pipes 2-1 and the cold flow pipes 2-2 are arranged perpendicularly to each other, the hot flow pipes 2-1 are provided with a plurality of sets of choking rings 2-4, the choking rings 2-4 shrink towards the inner parts of the hot flow pipes 2-1, the hot flow pipes 2-1 are composed of a plurality of sets of straight pipes and U-shaped pipes, two ends of each set of U-shaped pipe are respectively welded with water outlets and water inlets of the two sets of straight pipes, and the choking rings 2-4 are positioned at the water outlets of the straight pipes.

The heat exchange plates 2 are also provided with heat transfer assemblies, each of the heat transfer assemblies comprises an evaporation cabin 2-5, a heat transfer cabin 2-6 and a transmission pipe 2-7, the evaporation cabin 2-5 is machined at the position of the lower right foot inside the heat exchange plate 2, the heat transfer cabin 2-6 is machined at the position of the upper left foot inside the heat exchange plate 2, the right side of the heat transfer cabin 2-6 is connected with the upper end of the evaporation cabin 2-5 through a pipeline, one end of the transmission pipe 2-7 is connected with the left side of the heat transfer cabin 2-6 through a pipeline, the other end of the transmission pipe 2-7 is connected with the lower end of the evaporation cabin 2-5 through a pipeline, and a solution with a low boiling point is contained in the evaporation cabin 2-5.

One end of the transmission pipe 2-7, which is close to the heat transfer cabin 2-6, is welded with a condensation pipe 2-8, the condensation pipe 2-8 penetrates through the cold flow pipe 2-2 and is positioned inside the cold flow pipe 2-2, the condensation pipe 2-8 and the component flow pipes 2-3 are dendritic, cold fluid can be more conveniently subjected to cold and heat exchange with hot fluid through the dendritic flow division pipes 2-3, and steam is subjected to cold and heat exchange with the cold fluid through the condensation pipe 2-8.

The transmission pipes 2-7 are positioned on the outer sides of the heat exchange plates 2, the pipe diameters of the transmission pipes 2-7 are smaller than the pipe diameters of pipes for connecting the heat transfer cabins 2-6 and the evaporation cabins 2-5, and the transmission pipes 2-7 are positioned in the heat insulation layer 1-1.

The arrangement of the plurality of groups of component flow pipes 2-3 enables the cold fluid laminar flow inside the cold flow pipe 2-2 to be damaged, so that the cold fluid is continuously mixed and subjected to position exchange in the cold flow pipe 2-2, and the cold and heat exchange efficiency between the cold fluid and the hot fluid is improved.

The two groups of fixing mechanisms 3 respectively comprise an upper fixing plate 3-1, a lower fixing plate 3-2 and a power plate 3-3, the two groups of upper fixing plates 3-1 and the two groups of lower fixing plates 3-2 are respectively fixed with the shell 1 through screws, the upper end of the power plate 3-3 is welded with the lower end face of the upper fixing plate 3-1, and the lower end of the power plate 3-3 is welded with the upper end face of the lower fixing plate 3-2.

The two groups of upper fixing plates 3-1, the two groups of lower fixing plates 3-2 and the two groups of power plates 3-3 are all of hollow structures, transmission shafts 3-4 are rotatably mounted inside the two groups of upper fixing plates 3-1 and inside the two groups of lower fixing plates 3-2, limiting plates 3-5 are welded on the lower end face of the left end of the upper fixing plate 3-1 and the upper end face of the left end of the lower fixing plate 3-2, fixing blocks 3-6 are rotatably mounted on the transmission shafts 3-4, and turbines 3-7 are fixedly mounted at the right ends of the transmission shafts 3-4.

The two groups of power plates 3-3 are respectively and rotatably provided with a driving shaft 3-8, two ends of the driving shafts 3-8 are respectively and fixedly provided with a worm 3-9, and the driving shafts 3-8 are respectively and rotatably provided with a power block 3-10.

The outer surfaces of the driving shafts 3-8 and the two groups of transmission shafts 3-4 are respectively provided with threads, the inner surfaces of the two groups of fixed blocks 3-1 and the power blocks 3-10 are respectively provided with threads, the driving shafts 3-8 are rotatably connected with the power blocks 3-10 through the threads, and the transmission shafts 3-4 are rotatably connected with the fixed blocks 3-1 through the threads.

The upper end of a driving shaft 3-8 penetrates through the lower end face of the upper fixing plate 3-1 and is rotatably connected with the upper fixing plate 3-1, the lower end of the driving shaft 3-8 penetrates through the upper end face of the lower fixing plate 3-2 and is rotatably connected with the lower fixing plate 3-2, and worms 3-9 positioned at the upper end and the lower end of the driving shaft 3-8 are respectively rotatably connected with turbines 3-7 in the upper fixing plate 3-1 and the lower fixing plate 3-2.

The positions, corresponding to the power blocks 3-10, of the two groups of power plates 3-3 are respectively provided with a sliding groove, one end of each power block 3-10 is located in each sliding groove, the two groups of power plates 3-3 are respectively provided with a plurality of groups of positioning holes 3-11 on two sides of each sliding groove, three groups of through holes are formed in the power blocks 3-10 and have the same aperture as the positioning holes 3-11, three groups of fixing columns are inserted into the power plates 3-3 and fix the positions, on the power plates 3-3, of the power blocks 3-10 through the positioning holes 3-11 and the through holes, when the positions of the power blocks 3-10 need to be adjusted, an operator pulls out the fixing columns from the positioning holes 3-11, and after the positions are adjusted, the operator inserts the fixing columns into the power plates 3-3 again.

The working principle of the invention is as follows:

when cold and hot fluid needs to exchange heat, the hot fluid enters the hot flow pipe 2-1, the cold fluid enters the cold flow pipe 2-2, when the hot fluid flows in the hot flow pipe 2-1, the position of the lower right corner of the heat exchange plate 2 is the highest temperature position relative to the whole heat exchange plate 2, and the position of the evaporation cabin 2-5 is the lower right corner.

When hot fluid flows in the hot flow pipe 2-1, the hot flow pipe 2-1 transfers part of the heat to the heat exchange plate 2 by heat conduction, the temperature of the heat exchange plate 2 rises and heats the cold fluid in the cold flow pipe 2-2.

When cold fluid flows in the cold fluid pipe 2-2, the cold fluid and hot fluid in the hot fluid pipe 2-1 are subjected to cold and hot heat exchange through the branch pipes 2-3, the efficiency of the cold and hot heat exchange is improved through the branch pipes 2-3, the cold fluid absorbs a large amount of heat through the branch pipes 2-3 and flows out of the heat exchange equipment through the cold fluid pipe 2-2, and the hot fluid after the cold and hot heat exchange flows out of the heat exchange equipment through the hot fluid pipe 2-1.

The hot flow pipe 2-1 is provided with a plurality of groups of choke rings 2-4, the choke rings 2-4 enable the flow velocity of hot fluid in the hot flow pipe 2-1 to be reduced, the retention time of the hot fluid in each section of straight pipe is prolonged, and the cold-heat exchange efficiency between cold fluid and the hot fluid is improved.

The solution in the evaporation cabin 2-5 is evaporated in a high-temperature environment, the transmission pipe 2-7 is communicated with the lower end of the evaporation cabin 2-5, the transmission pipe 2-7 is filled with the solution, the evaporated steam enters the heat transfer cabin 2-6 through the pipeline, and the steam enters the heat transfer cabin 2-6 and then is accumulated in the heat transfer cabin 2-6, so that the temperature of the heat transfer cabin 2-6 is increased, the temperature of the upper left part of the heat exchange plate 2 is increased, the heat conduction process of the heat exchange plate 2 is accelerated through the arrangement of the heat transfer assembly, and the heat loss of the upper left part of the heat flow pipe 2-1 is further reduced.

When the solution in the evaporation cabin 2-5 is evaporated, the water level of the solution starts to drop, the solution in the transmission pipe 2-7 enters the evaporation cabin 2-5 under the action of atmospheric pressure, the water level of the solution in the evaporation cabin 2-5 and the solution in the transmission pipe 2-7 is kept balanced, when the water level in the transmission pipe 2-7 drops, the drop of the water level drives the air pressure in the condensation pipe 2-8 to drop, further the steam in the heat transfer cabin 2-6 enters the condensation pipe 2-8, the steam entering the condensation pipe 2-8 and the cold fluid in the cold flow pipe 2-2 perform cold and heat exchange, the temperature of the cold fluid rises after passing the condensation pipe 2-8, the steam is condensed into liquid again after passing the condensation pipe 2-8, the transmission pipe enters the transmission pipe 2-7 and waits to enter the evaporation cabin 2-5 again.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (3)

1. The utility model provides a cross flow state indirect heating equipment based on thermal convection process which characterized in that: the heat exchange equipment comprises a shell (1), a plurality of groups of heat exchange plates (2) and at least two groups of fixing mechanisms (3), wherein the at least two groups of fixing mechanisms (3) are arranged in the shell (1), the plurality of groups of heat exchange plates (2) are arranged on the fixing mechanisms (3), and the at least two groups of fixing mechanisms (3) enable the plurality of groups of heat exchange plates (2) to be fixed in the shell (1);

a hot flow pipe (2-1) and a cold flow pipe (2-2) are arranged in each of the plurality of groups of heat exchange plates (2), a plurality of groups of branch flow pipes (2-3) are arranged on each of the plurality of groups of cold flow pipes (2-2), and the plurality of groups of branch flow pipes (2-3) penetrate through the hot flow pipes (2-1); the at least two groups of fixing mechanisms (3) respectively comprise an upper fixing plate (3-1), a lower fixing plate (3-2) and a power plate (3-3), the upper end of the power plate (3-3) is fixed with the upper fixing plate (3-1), and the lower end of the power plate (3-3) is fixed with the lower fixing plate (3-1);

a plurality of groups of heat exchange plates (2) are also provided with heat transfer assemblies, each group of heat transfer assemblies comprises an evaporation cabin (2-5), a heat transfer cabin (2-6) and a transmission pipe (2-7), the evaporation cabin (2-5) is arranged at the lower right part inside the heat exchange plate (2), the heat transfer cabin (2-6) is arranged at the upper left part inside the heat exchange plate (2), one end of the heat transfer cabin (2-6) is connected with the evaporation cabin (2-5) through a pipeline, one end of the transmission pipe (2-7) is connected with the other end of the heat transfer cabin (2-6) through a pipeline, the other end of the transmission pipe (2-7) is connected with the evaporation cabin (2-5) through a pipeline, a solution with a low boiling point is arranged in the evaporation cabin (2-5), and the transmission pipe (2-7) is positioned at the outer side of the heat exchange plate (2);

the power plate fixing device comprises at least two groups of upper fixing plates (3-1), at least two groups of lower fixing plates (3-2) and at least two groups of power plates (3-3) which are of hollow structures, transmission shafts (3-4) are arranged inside the at least two groups of upper fixing plates (3-1) and inside the at least two groups of lower fixing plates (3-2), limiting plates (3-5) are arranged on the lower end face of the left end of the upper fixing plate (3-1) and the upper end face of the left end of the lower fixing plate (3-2), fixing blocks (3-6) are arranged on the transmission shafts (3-4), and turbines (3-7) are arranged at the right ends of the transmission shafts (3-4).

2. The cross-flow state heat exchange device based on a thermal convection process of claim 1, wherein: driving shafts (3-8) are arranged in at least two groups of power plates (3-3), worms (3-9) are arranged at two ends of the driving shafts (3-8), power blocks (3-10) are arranged on the driving shafts (3-8), the upper ends of the driving shafts (3-8) are rotatably connected with an upper fixing plate (3-1), the lower ends of the driving shafts (3-8) are rotatably connected with a lower fixing plate (3-2), and the worms (3-9) at the upper and lower ends of the driving shafts (3-8) are respectively rotatably connected with two groups of turbines (3-7).

3. The cross-flow state heat exchange device based on a thermal convection process of claim 2, wherein: the positions, corresponding to the power blocks (3-10), of the at least two groups of power plates (3-3) are provided with sliding grooves, one ends of the power blocks (3-10) are located in the sliding grooves, the two sides of the sliding grooves of the at least two groups of power plates (3-3) are provided with a plurality of groups of positioning holes (3-11), the power blocks (3-10) are provided with at least two groups of through holes, and the through holes are the same as the positioning holes (3-11) in diameter.

Images