CN106698567A - Solar power generation and seawater desalination device of combining condenser and wind turbine - Google Patents

Abstract

The invention discloses a solar power generation and seawater desalination device combined with a condenser and a wind turbine. The bottom groove of the seawater heat storage layer absorbs solar radiation to heat the seawater, and the seawater evaporates into water vapor, which is carried by the airflow flowing in from the inlet of the heat collection shed, and the hot and humid air It enters the condenser at the bottom of the chimney through the heat collection shed, and the temperature of the hot and humid air drops through the heat exchange on the heat exchange wall, and the precipitated liquid water is finally collected by the fresh water storage tank to improve the desalination effect of seawater; the air after heat exchange is in the chimney effect Under the action of the turbine, the turbine is driven to rotate and do work. The turbine consumes most of the pressure potential energy and part of the kinetic energy of the airflow. The remaining small part of the pressure potential energy and kinetic energy is used to drive the airflow to escape from the chimney outlet. The high-altitude wind blows the H-type vertical axis wind turbine blades. When rotating, it will also drive the fan blades to rotate. The negative pressure generated by the rotating fan blades will further increase the pressure difference between the inside and outside of the chimney, thereby accelerating the discharge of the hot air that has done work in the chimney and strengthening the chimney effect.

Description

A solar power generation and seawater desalination device combining condenser and wind turbine

technical field

The invention relates to the technical field of power generation and seawater desalination by utilizing solar energy, in particular to a solar power generation and seawater desalination device combined with a condenser and a wind turbine.

Background technique

Solar energy is a kind of new energy and renewable energy. It has the advantages of being clean, environmentally friendly, sustainable, and long-lasting. It has become one of the important choices for people to cope with energy shortage, climate change, energy conservation and emission reduction, and has attracted more and more attention from the world.

Using solar energy for power generation and seawater desalination can make full use of solar energy. Existing solar power generation and seawater desalination devices, such as patent 200810021605.3 discloses a chimney power generation and seawater desalination device using solar energy. The solar power generation and solar seawater desalination devices are combined, although the conversion efficiency of solar energy is improved. At the same time, fresh water can be added, making seawater desalination more economical. However, due to the need for transparent cover plates to condense water vapor into fresh water, the utilization efficiency is low, resulting in unnecessary waste of heat energy. Moreover, when the chimney height and the radius of the heat collecting shed are fixed in the solar chimney power generation system, the difference in airflow density inside and outside the system is the main factor affecting the pressure difference between the inside and outside of the system. Due to the low air density, although the system can obtain a considerable temperature difference between the internal and external airflow, the density difference between the internal and external airflow is not large, resulting in a small pressure difference between the internal and external airflow, which restricts the improvement of the power generation of the system, which is the deficiency of the system itself.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provides a solar power generation and seawater desalination device combined with a condenser and a wind turbine. The overall structure of the ventilator not only utilizes high-altitude wind resources to generate electricity, but also increases the negative pressure inside the chimney to increase the power generation of the solar chimney power generation system.

In order to solve the above technical problems, the present invention provides a solar power generation and seawater desalination device combined with a condenser and a wind turbine, which is characterized in that it includes a heat collection shed, a condenser, a turbine, a chimney and a wind power generation device;

The heat collecting shed comprises a heat collecting shed bottom plate and a heat collecting shed cover covering above the heat collecting shed bottom plate, a trumpet-shaped diversion cavity is formed between the heat collection shed cover plate and the heat collection shed bottom plate; The ring is its entrance, and the inner ring is its exit; a fresh water storage pool and heat storage layer are set at the bottom of the heat collection shed, and the heat storage layer is located on the outer periphery of the fresh water storage pool;

The condenser is arranged at the center of the diversion cavity, and the condenser includes multiple layers of heat exchange walls arranged along the arc shape of the inner wall of the cover plate of the heat collection shed, and the heat exchange walls of each layer are arranged at intervals; The water pump introduces the seawater in the seawater pool into the shunt pipe; the ends of the heat exchange walls of each layer are connected to the confluence pipe, and the outlet of the confluence pipe is connected to the heat storage layer at the bottom; fresh water collection is arranged under the end of the heat exchange wall of each layer The fresh water collection tanks of each layer are connected by the diversion inner pipe, and the outlet of the diversion inner pipe is connected with the fresh water storage pool;

The chimney is a vertical hollow cylinder, the outlet of the diversion chamber communicates with the lower port of the chimney, and the turbine is arranged at the center where the two communicate; a wind power generating device is arranged at the center of the upper port of the chimney;

The wind power generation device includes a fan and a wind machine, the wind machine is installed above the fan, the central axis of rotation of the turbine, the fan and the wind machine coincides with the central axis of the chimney, and the blades of the wind machine are rigidly connected to the blades of the fan To drive the blades of the fan to rotate.

Further, each heat exchange wall surface includes a circular cavity formed by inner and outer double wall surfaces, and the cavity is divided by baffles uniformly arranged along the circumference to form a plurality of condensate flow channels.

Further, the tops of the heat exchange walls of each layer are on the same horizontal plane, and the ends are on the same vertical plane.

Further, the confluence pipe includes circular second branch pipes corresponding to the ends of the heat exchange walls of each layer, the second branch pipes of each layer are connected through the second main pipe arranged vertically, and the outlet of the end of the second main pipe is connected to seawater heat storage Floor.

Further, one end of the fresh water collection tank is located below the lower surface of the end of the heat exchange wall, and its surface is streamlined, and the other end is in the shape of a hook and is opposite to the end opening of the heat exchange wall.

Further, a cover plate is provided above the fresh water storage pool.

Further, further, the fan is an axial flow fan, and the wind turbine is an H-type vertical axis wind generator.

Further, the fan blades are vertically connected to the wind turbine blades in one-to-one correspondence.

Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention uses seawater as cooling liquid, not only utilizes seawater to realize the condensation of hot and humid air and the precipitation of fresh water, but also the condenser preheats the seawater conversely , so that the energy can be fully utilized; through the overall structure of the H-type vertical axis wind turbine and the ventilator, not only high-altitude wind resources are used to generate electricity, but also the internal negative pressure of the chimney is increased to increase the power generation of the solar chimney power generation system. The shunt pipe and the confluence pipe play the role of evenly distributing the flow, strengthen the heat exchange effect of the heat exchange wall surface, and improve the heat exchange efficiency of the condenser. The invention realizes comprehensive utilization of solar energy and wind energy on the one hand, and realizes fresh water output on the other hand, and can solve the water supply problem in water-scarce regions.

Description of drawings

Fig. 1 is the structural representation of power generation and seawater desalination device of the present invention;

Fig. 2 is the structural representation of condenser among the present invention;

Fig. 3 is a sectional view of the heat exchange wall in the condenser;

Fig. 4 is the plan view of shunt pipe in condenser;

Fig. 5 is the front view of the manifold in the condenser;

Fig. 6 is the structural representation of the fresh water collecting tank in the condenser;

Fig. 7 is a structural schematic diagram of a wind power generating device;

Fig. 8 is a plan view of the wind power generator.

Reference signs: 1, heat storage layer; 11, flow limiting valve; 12, partition; 2, heat collection shed; 21, heat collection shed bottom plate; 22, heat collection shed cover plate; 3, condenser; 31, replacement 311, baffle plate; 312, condensate flow channel; 32, shunt pipe; 321, first main pipe; 322, first branch pipe; 33, water pump; 34, confluence pipe; 341, second branch pipe; 342. Second trunk pipe; 35. Fresh water collection tank; 36. Inner diversion pipe; 37. Fresh water storage tank; 38. Cover plate; 4. Turbine; 5. Chimney; 6. Wind power generation device; 61. Main shaft; 62 , upper connecting rod; 63, wind turbine blade; 64, support; 65, generator set; 66, fan blade.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

In the description of the patent of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the patent of the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific The azimuth structure and operation, therefore, cannot be construed as a limitation of the patent of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the patent of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the patent of the present invention in specific situations.

A solar power generation and seawater desalination device combined with a condenser and a wind turbine of the present invention, as shown in Figures 1 to 8, includes a heat collection shed 2, a condenser 3, a turbine 4, a chimney 5 and a wind power generation device 6;

The heat collection shed 2 includes a heat collection shed bottom plate 21, a heat collection shed cover plate 22 covering the heat collection shed bottom plate 21, and a trumpet-shaped flow guide cavity is formed between the heat collection shed cover plate 22 and the heat collection shed bottom plate 21 The outer ring of the diversion cavity is its inlet, and the inner ring is its outlet; a fresh water storage tank 37 and a heat storage layer 1 are arranged at the bottom of the heat collection shed 1, and the heat storage layer 1 is located on the periphery of the fresh water storage pool 37;

The condenser 3 is arranged at the center of the diversion cavity, and the condenser 3 includes a plurality of heat exchange wall surfaces 31 arranged along the arc shape of the inner wall of the heat collecting shed cover plate 22, and the heat exchange wall surfaces 31 of each layer are arranged at intervals; The top of the wall 31 is connected to the distribution pipe 32, and the water pump 33 introduces the seawater in the seawater pool into the distribution pipe 32; the ends of the heat exchange walls 31 of each layer are connected to the manifold 34, and the outlet of the manifold 34 is connected to the heat storage layer 1 at the bottom A fresh water collection tank 35 is arranged below the ends of the heat exchange walls 34 of each layer, and the fresh water collection tanks 35 of each layer are connected by a diversion inner tube 36, and the outlet of the diversion inner tube 36 is connected to a fresh water storage pool 37;

The chimney 5 is a vertical hollow cylinder, the outlet of the diversion chamber communicates with the lower port of the chimney 5, and the turbine 4 is arranged at the center of the communication between the two; the wind power generation device 6 is arranged at the center of the upper port of the chimney 5 ;

Described wind power generation device 6 comprises fan and wind machine, described wind machine is installed on the top of fan, the rotation central axis of turbine, fan and wind machine coincides with chimney central axis, the blade rigidity of the blade of wind machine and fan Connect to drive the fan blades to rotate.

In this embodiment, the condenser 3 is located at the bottom of the heat collection shed 2, and its structure diagram is shown in FIG. 2 , and is circularly and symmetrically arranged around the vertical center of the heat collection shed. The heat collection shed 2 is a trumpet-shaped diversion chamber formed between the heat collection shed cover plate 22 and the heat collection shed bottom plate 21; the diversion chamber gradually narrows from bottom to top, and the condenser is located at the vertical center of the diversion chamber .

The cross-sectional view of the heat exchange wall is shown in Figure 3. The heat exchange walls 31 of each layer include a circular cavity formed by the inner and outer double walls. The cavity is divided by baffles 311 uniformly arranged along the circumference to form a plurality of condensate flow channels 312. , the inlet of each channel is connected with the shunt tube. The tops of the heat exchange walls of each layer are on the same horizontal plane, and the ends are on the same vertical plane.

The structure diagram of the shunt pipe is shown in Figure 4. The shunt pipe is arranged horizontally, including a circular first branch pipe 322 corresponding to the top of the heat exchange wall of each layer. The first branch pipe of each layer is connected through the first main pipe on the radius. The water inlets of the first main pipes 321 are connected to the water pumps respectively. Under the action of the water pump 33, the seawater in the seawater pool flows into the peripheral first trunk pipe 321 from both sides of the diversion pipe 32, and the seawater enters the inner first branch pipe along the entrance of the peripheral first trunk pipe, and each layer of the first The branch pipes are connected with each other. The lower part of the first branch pipe has a connection port, and the connection port at the lower part of the branch pipe corresponds to the flow channel inside the heat exchange wall. Each connection port is connected with the condensate channel in the heat exchange wall to ensure that the seawater flows into the heat exchange wall 31 evenly. The shunt pipe 32 can evenly distribute the flow, so that the seawater flows evenly into the heat exchange wall 31 at a certain flow rate, which enhances the heat exchange effect of the heat exchange wall and improves the heat exchange efficiency of the condenser.

The structure of the manifold is shown in Figure 5. The manifold 34 is arranged vertically and includes circular second branch pipes 341 corresponding to the ends of the heat exchange walls of each layer. The second branch pipes 341 of each layer pass through the vertically arranged second main pipes. 342 are connected, and the end outlet of the second main pipe 342 is connected to the seawater thermal storage layer 1 . The second branch pipes of each layer are circular and have the same radius. Each layer of second branch pipes has a connection port, and each connection port is connected to the end outlet of the heat exchange wall surface 31. Seawater flows in after passing through the confluence pipe 34 in the seawater heat storage layer. The confluence pipe plays the role of evenly distributing the flow, strengthens the heat exchange effect of the heat exchange wall surface, and improves the heat exchange efficiency of the condenser.

In order to control the amount of seawater in the seawater heat storage layer, a pipeline is extended from the inside of the seawater heat storage layer to the external seawater pool, and a flow limiting valve 11 is installed in the pipeline. The flow limiting valve 11 controls the flow flowing into the seawater heat storage layer to ensure that the seawater heat storage layer is at the same level.

The structure of the fresh water collection tank 35 is shown in Figure 6. One end of the fresh water collection tank 35 is located below the lower surface of the end of the heat exchange wall 31, and its surface is streamlined, which can reduce the obstruction of hot and humid air flow. The other end is curved. It is opposite to the end opening of the heat exchange wall to reduce the evaporation of fresh water, and the height of the hook is equivalent to the diameter of the heat exchange wall to avoid obstructing the air flow. One layer of fresh water collection tank is formed by rotating the section as shown in the figure 360 degrees along the vertical axis in the center of the heat collection shed. The fresh water collection tank 35 is located at the bottom right of the heat exchange wall 31 as a whole, and is placed along the arc slope of the heat exchange wall to form a shape covering the end opening of the heat exchange wall 31, so that the remaining water along the upper and lower surfaces of the heat exchange wall The fresh water falls into the fresh water collection tank 35 . Every layer of fresh water collecting tank 35 is open at the bottom, so that fresh water can flow down, connect the diversion inner pipe 36 at each layer of fresh water collecting tank 35 openings, make fresh water flow down through the diversion inner pipe 36.

The fresh water storage tank 37 is located at the bottom of the heat collection shed, and a partition 38 is vertically arranged between the fresh water storage tank 37 and the seawater heat storage layer 1 . A cover plate 38 is arranged above the fresh water storage tank, and the evaporation loss of fresh water can be reduced due to the existence of the cover plate 38 .

The structure of the wind power generation device is shown in Figure 7 and Figure 8. The wind turbine is an H-type vertical axis wind generator. The wind turbine includes a central main shaft 61, an upper connecting rod 62, a wind turbine blade 63, and a wind turbine generating set 645. The central main shaft The center line of 61 coincides with the center line of the chimney 5, and the central main shaft 61 extends toward the inside of the chimney 5, and is fixed to the chimney wall by a support 64. The wind turbine includes five vertical wind turbine blades 63, which are evenly distributed along the circumference of the central main shaft 61, The radius of rotation of the wind turbine blades 63 is the same as that of the chimney 5 . The upper ends of the five wind turbine blades are rigidly connected by a horizontal upper link 62 .

The fan is an axial flow fan, and the fan includes 5 fan blades 66, and the fan blades 66 are rigidly connected with the wind turbine blades 63 one by one. 66 rotates together with the wind turbine blade 63.

The working principle of desalination of seawater by the condenser of the present invention is as follows: outside air flows into the heat collection shed 2 through the heat collection shed inlet, and during the daytime, the bottom tank of the seawater heat storage layer 1 absorbs solar radiation, and the seawater evaporates intensified to form damp heat due to the increase in seawater temperature Air, hot and humid air enters the condenser 3 along the guide cavity in the heat collection shed 2 . At the same time, the seawater in the remote seawater pool enters the diversion pipe 32 under the action of the water pump 33, and the seawater flows into the heat exchange wall 31 of each layer through the diversion pipe 32 evenly, and the hot and humid air exchanges a part of heat to the seawater when passing through the heat exchange wall 31 , so the temperature of the hot and humid air drops and liquid water is precipitated. The liquid water flows down along the outer surface of the heat exchange wall 31 and is collected by the fresh water collection tank 35. The fresh water collection tank 35 is curved and has a gentle transition, which has little interference with the flow of the hot air flow, and the evaporation loss of the collected fresh water is small. It flows into the fresh water storage tank 37 along the diversion inner pipe 36 .

The seawater flowing through the heat exchange wall surface 31 absorbs the heat of the hot and humid air and heats up, and flows into the seawater heat storage layer 1 along the collecting pipe 34. Therefore, the seawater in the seawater heat storage layer has a certain initial temperature, and the condenser plays a role for the seawater. Preheating effect. During the day, the temperature of the seawater in the seawater heat storage layer continues to rise to intensify evaporation, so there is a continuous flow of hot and humid air into the condenser. The water pipe extending from the collecting pipe 34 to the outside plays a role in controlling the flow. When the seawater heat storage layer exceeds the rated height, the flow limiting valve 11 stops limiting the flow, and the excess seawater is discharged into the external seawater pool.

The seawater in the seawater pool is preheated by the heat exchange wall surface 31 and replenished into the seawater heat storage layer. At the same time, the seawater inlet also replenishes seawater at a certain speed to keep the seawater layer at a certain height. When the salt concentration is greater than that of the lower layer, the upward transfer of heat is suppressed, and more heat absorbed by the bottom tank of the seawater heat storage layer is retained. At night, the evaporation of the upper seawater slows down. As the salt continues to settle, the salt concentration of the lower layer is greater than that of the upper layer, and the heat begins to transfer upwards faster, thus ensuring that the seawater layer can still maintain a high temperature at night, while the bottom of the heat storage layer of seawater The concentrated brine in the tank is discharged through the outlet of the concentrated brine, forming a simple solar pond system.

The water vapor formed by the evaporation of seawater is carried by the airflow flowing into the heat collecting shed 2, and the moisture content of the airflow continues to increase during the continuous forward flow of the airflow, and the relative humidity has reached saturation before the airflow reaches the bottom of the chimney 5. When the saturated hot air flows to the bottom of the chimney 5, the density of the air flow decreases, the density difference between the inside and outside of the system increases, and the chimney effect intensifies, so the air flow rises and flows into the condenser 3, and at the same time, the external air is continuously replenished through the inlet of the heat collection shed 2 Come in to achieve homeostasis. When the saturated hot gas flow passes through the heat exchange wall 31 in the condenser 3 , the temperature of the gas flow drops and liquid water is precipitated, and the liquid water is finally collected into the fresh water storage tank 37 .

The density difference and pressure difference inside and outside the system are the largest at the bottom of the chimney 5, so the axial flow turbine 4 is installed here, and the updraft drives the blades of the turbine 4 to rotate, and drives the corresponding generator to generate electricity. The turbine 4 consumes most of the pressure potential energy and part of the kinetic energy of the hot air flow, and the remaining small part of the pressure potential energy and kinetic energy is used to drive the hot air flow to continue rising along the chimney 5. During the rising process, the temperature of the air flow gradually decreases, and the enthalpy drop is converted into gravity. Potential energy, the speed of the airflow drops slightly, and then the hot airflow flows into the overall structure 6 of the H-type vertical axis wind turbine and fan.

Due to the high wind speed at high altitude, the natural wind at high altitude drives the blades of the H-type vertical axis wind turbine above the chimney 5 to rotate, and drives the corresponding wind power generation unit 65 to generate electricity.

Since the blades 63 of the H-type vertical axis wind turbine are rigidly connected to the fan blades 66, the fan blades 66 are driven to rotate together when the wind turbine blades 63 rotate, so that the fan works normally. The negative pressure generated by the rotating fan blades 65 accelerates the discharge of the hot air flow that has done work in the chimney, and the pressure difference between the inside and outside of the chimney is further increased, which strengthens the chimney effect and increases the output power of the turbine 4.

The prototype size of the Spanish solar power plant is used below. In the Spanish solar chimney prototype, the chimney height is 200m, the diameter is 10m, the diameter of the heat collection shed is 250m, the inlet height is 2m, and the outlet height is 8m. To compare the total output power of a single solar chimney power station, a united solar chimney, a ventilator and a wind turbine and a combined condenser of the present invention and a wind turbine solar thermal power generation unit.

Take the data of the Spanish prototype power station: the chimney height H _ch =200m, the chimney radius R _ch =5m, and the heat collecting shed radius R _coll =125m.

At the same time, the same meteorological conditions are used in the comparison, the average solar radiation intensity I=1000W/m ² , and the outside air temperature T _a =298.15K. In the formula, η _c is the efficiency of the heat collection shed, η _c = 0.32; C _p is the specific heat capacity of the air, C _p = 1000J/(kg·℃); ρ is the air density, assumed to be a fixed value ρ = 1.225kg/m ³ ; g is the acceleration of gravity, g=9.81m/s ² ; η is the airflow conversion efficiency, and η=0.4.

The relevant data of a single solar chimney power station are as follows:

Temperature rise from the inlet to the outlet of the heat collection shed where m is the mass flow rate,

Mass flow m = ρπR _ch ² v, where v is the air velocity,

air velocity

Substituting the above data into the above three equations, the above equations can be solved simultaneously:

ΔT＝12.652K, m＝1241.51Kg/s, v＝12.904m/s

relative pressure difference at the turbine

Airflow power P=ΔP×m/ρ=99.156kW,

Output power N=η×P=39.66kW.

The relevant data of the power generation unit of the combined solar chimney, ventilator and wind turbine are as follows:

The H-type vertical axis wind turbine has the following design parameters: impeller diameter d=10m, blade length l=15m, rated wind speed v=15m/s, rated speed n=200rpm, and wind energy utilization coefficient C _p =0.15.

wind power

H-type vertical axis wind turbine output power N'=C _p P _w ＝37.21kW,

The rotational speed of the axial fan is the same as that of the H-type vertical axial fan, n'=n=200rpm, and the diameter of the wind wheel d'=d=10m. On the premise that the mass flow m=1241.51kg/s is a certain value, that is, under the conditions of air volume V=m×3600/ρ _a =3.65×10 ⁶ m ³ /h, n′=200rpm, d′=10m, select The negative pressure obtained by a certain type of vertical-axis axial-flow fan is between 30Pa-40Pa, and here, the negative pressure ΔP'=35Pa is taken.

Then the output power N″=ηm×(ΔP+ΔP′)/ρ=53.851kW, compared with the output power of a single solar chimney power station, it has increased by 14.191kW, and the increase rate is 35.8%. And the total output power of the power generation device N _all = N'+N"=91.061kW.

The relevant data of the solar thermal air flow power generation device of the present invention's combined condenser and wind turbine are as follows:

The design parameters of H-type vertical axis wind turbine and axial flow fan are the same as above.

Numerical simulation in ANSIS FLUENT 15 shows that: the humidity of the hot air flow has reached saturation before reaching the bottom of the chimney; the temperature of the air flow before entering the condenser is T ₁ =310.802K, and the temperature of the air flow out of the condenser is T ₂ =308.556K , the density of hot saturated humid air at this time ρ'=1.195Kg/m ³ .

Check the moisture content table of saturated humid air at different temperatures under the standard atmospheric pressure, it can be obtained: when T ₁ =310.802K, the moisture content Q ₁ =43.1g/Kg; when T ₂ =308.556K, the moisture content Q ₂ = 37.5 g/Kg.

At this time: ΔT'=10.406K

m'=ρ'πR _ch ² v'=1098.39Kg/s

P″=(ΔP″+ΔP’)m/ρ’=104.85KW

N"'=ηP"=41.940KW

N _all '=N"'+N'=79.15KW

Water production R=m'×(43.1-37.5)=6150.984g/s, and the efficiency of partitioned wall condenser is generally α=20%, then the actual water production R'=α×R=307.55g/s=4428.71Kg /h＝4.43ton/h

Compared with the power generation device combined with solar chimneys, ventilators and wind turbines, although the total output power of the device of the present invention has decreased by 11.911KW, it can produce 4.43 tons of fresh water per hour, which improves the water supply problem in water-shortage areas.

Through theoretical calculation, it can be seen that the comprehensive utilization rate of solar energy in the combined seawater desalination solar chimney power generation system driven by the wind booster system has been greatly improved. In order to further prove the superiority of the present invention, by modeling with the size of the Spanish prototype, and performing numerical simulation in ANSYS FLUENT 15, the specific simulation process refers to "Numerical Simulation of Thermal Performance of Seawater Desalination Solar Chimney Combined Power Generation System" ("Thermal Power Generation", Volume 45 Issue 1, January 2016). The simulation result shows: the power generation of the solar thermal air flow power generation device of the present invention combined condenser and wind turbine has improved 2.28kW than single solar chimney, compared with the power generation device power generation of joint solar chimney, ventilator and wind turbine has declined 11.911kW, but at the same time can produce 4.43ton/h of fresh water, the comprehensive utilization rate of solar energy has been greatly improved, and the power generation of the H-type vertical axis wind turbine is 37.21kW, making full use of environmental resources.

The present invention uses seawater as cooling liquid, not only utilizes seawater to realize the condensation of hot and humid air and the precipitation of fresh water, but also the condenser preheats the seawater in turn, so that the energy can be fully utilized; through the H-type vertical axis wind turbine and The overall structure of the ventilator not only uses high-altitude wind resources to generate electricity, but also increases the negative pressure inside the chimney to increase the power generation of the solar chimney power generation system. The shunt pipe and the confluence pipe play the role of evenly distributing the flow, strengthen the heat exchange effect of the heat exchange wall surface, and improve the heat exchange efficiency of the condenser.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system, it is characterized in that, including it is thermal-arrest canopy, cold Condenser, turbine, chimney and wind power generation plant；

The thermal-arrest canopy includes thermal-arrest canopy base plate, the thermal-arrest canopy cover plate being covered in above thermal-arrest canopy base plate, thermal-arrest canopy cover plate and collection Horn-like diversion cavity is formed between hot canopy base plate；The outer shroud of diversion cavity is its import, and inner ring is exported for it；Thermal-arrest canopy bottom sets Freshwater storage pond and recuperation layer are put, recuperation layer is located at the periphery in freshwater storage pond；

The condenser is arranged at the center of diversion cavity, and condenser includes multilayer along changing that thermal-arrest canopy cover plate inwall arc is set Hot wall face, each layer heat exchange wall interval setting；The top connection isocon of each layer heat exchange wall, water pump is by the seawater in seawater pond It is introduced into isocon；The end connection collecting pipe of each layer heat exchange wall, the exit connection of collecting pipe is located at the recuperation layer of bottom； The end lower section of each layer heat exchange wall is provided with fresh water collecting groove, and each layer fresh water collecting groove is connected by water conservancy diversion inner tube, water conservancy diversion inner tube Exit connection fresh water storage pool；

The chimney is vertical hollow cylinder, and the outlet of diversion cavity is connected with the lower port of chimney, and the center connected at both Place sets the turbine；The upper port center of chimney sets wind power generation plant；

The wind power generation plant includes ventilation blower and wind energy conversion system, and the wind energy conversion system, turbine, ventilation are installed in the top of ventilation blower The Pivot axle of machine and wind energy conversion system and chimney center overlapping of axles, the blade of wind energy conversion system are rigidly connected with band with the blade of ventilation blower The blade of dynamic ventilation blower is rotated.

2. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that every layer of heat exchange wall face includes the circular cavity that inside and outside bilayer wall is formed, by circumferentially evenly distributed gear in cavity It is in a plurality of condensate liquid runner that plate separates.

3. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that the top of each layer heat exchange wall is in same level, and end is in same vertical plane.

4. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that collecting pipe includes the circular second branched pipe of each layer heat exchange wall end of correspondence, and each layer second branched pipe is by vertical The second main pipe for setting is connected, the end outlet connection seawater recuperation layer of the second main pipe.

5. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that one end of fresh water collecting groove is located at the lower section of heat exchange wall end lower surface, its surface is in streamlined, and the other end is in curved It is hook-shaped relative with the distal opening of heat exchange wall.

6. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in be provided with cover plate above fresh water storage pool.

7. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that further, the ventilation blower is axial fan, and the wind energy conversion system is H type vertical axis aerogenerators.

8. a kind of solar power generation and sea water desalinating unit for combining condenser and wind energy conversion system according to claim 1, its It is characterized in that ventilating vane corresponds vertical connection with pneumatic equipment bladess.