CN208500408U

CN208500408U - Solar energy optical-thermal thermo-electric generation and sea water desalination integrated system

Info

Publication number: CN208500408U
Application number: CN201820903869.0U
Authority: CN
Inventors: 赵维; 徐庆坤; 陈鹏; 李翼飞
Original assignee: Tianjin Sino German Vocational Technical College
Current assignee: Tianjin Sino German Vocational Technical College
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2019-02-15
Anticipated expiration: 2028-06-12

Abstract

The utility model belongs to the field of solar power generation and seawater desalination, and in particular relates to a solar photothermal thermoelectric power generation and seawater desalination integrated system, comprising a thermoelectric power generation unit, a heat exchange unit and a seawater desalination unit connected in sequence, as well as a power storage unit and a circulating water circuit unit The thermoelectric power generation unit includes a thermal insulation shell, a semiconductor thermoelectric power generation device arranged in the shell, and a hot end and a cold end respectively arranged on the left and right sides of the semiconductor thermoelectric power generation device; an insulating heat absorbing body; the cold end includes an insulator heat conductor and a heat exchange fin; temperature sensors are respectively arranged at the bottoms of the hot end and the cold end. The present application uses solar power generation and seawater desalination in combination, and uses solar thermal power generation to power the seawater desalination system. At the same time, the temperature difference between the cold and hot ends in the power generation process is used to recover heat for seawater desalination, so that the resources are effectively and fully utilized.

Description

Solar energy optical-thermal thermo-electric generation and sea water desalination integrated system

Technical field

The utility model belongs to solar power generation and field of seawater desalination, and in particular to a kind of solar energy optical-thermal thermo-electric generation And sea water desalination integrated system.

Background technique

Currently, energy crisis and environmental degradation are got worse, solar energy has nothing as a kind of reproducible green energy resource The advantages that limit exploitation.Solar energy generation technology has photovoltaic power generation and two kinds of solar energy thermal-power-generating, and photovoltaic power generation is a kind of by half The technology that conductor generates potential difference to generate electricity under the irradiation of sunlight.Solar light-heat power-generation is exactly to utilize solar heat energy A kind of technology of converting electrical energy.

Photovoltaic power generation technology is mature, and only cost is excessively high, and efficiency is undesirable.It causes to be difficult to popularize.And solar energy optical-thermal half Conductor thermo-electric generation system but solves the problems, such as this respect.And the pot life is long, maintenance is few, i.e., economical and environmentally friendly.

Freshwater resources are limited, how to be to have become the great of the 21 century mankind for the fresh water that the mankind drink by sea water desalination Project.Currently, mostly using the way of distillation in sea water desalination, low-temperature multiple-effect seawater desalination technology is exactly one such, sea water desalination System have run smoothly, low noise and maintenance operation facilitate.

Utility model content

The purpose of this utility model is to provide a kind of solar energy optical-thermal thermo-electric generation and sea water desalination integrated systems.

In order to achieve the above object, the utility model adopts the following technical solutions:

A kind of solar energy optical-thermal thermo-electric generation and sea water desalination integrated system, thermo-electric generation unit including sequential connection, Heat exchange unit and sea water desalination unit and electricity accumulating unit and circulation waterway unit；

The thermo-electric generation unit includes insulation shell, the intracorporal semiconductor thermo-electric generation apparatus of the shell is arranged in And it is separately positioned on the hot end at left and right sides of the semiconductor thermo-electric generation apparatus and cold end；The hot end includes transparent Cover board, the insulation absorber being arranged on the inside of the transparent cover plate；The cold end includes insulator heat carrier and heat exchange Fin；The bottom in the hot end and cold end is respectively arranged with temperature sensor；One end of the heat exchange fin and recirculated water Entrance connection, the other end are connect with the circulating water outlet；The semiconductor thermo-electric generation apparatus is connect with conducting wire.

Heat exchange unit includes shell, the seawater inlet port that the shell upside is arranged in, the shell is arranged in The seawater strainer that the shell middle position is arranged in, the seawater strainer is arranged in the seawater water outlet of body lower side The liquid level sensor on top and the heat exchanger that the seawater strainer lower part is set；Described heat exchanger one end with The connection of cycling use of water entrance, the other end and cycling use of water outlet connect.

The sea water desalination unit includes three sea water desalination units being serially connected；The sea water desalination unit is logical Vacuum tube interconnection is crossed, the vacuum tube is controlled to a vacuum pump to provide vacuum degree for the sea water desalination unit； The sea water desalination unit includes the vaporization chamber sealed, the condenser pipe that the vaporization chamber upper end is arranged in, is arranged described Vaporization chamber below seawater slot, the heat exchanger tube that is arranged in the seawater slot；Pressure sensing is provided in the vaporization chamber Pressure of the device to measure each vaporization chamber；Seawater inlet is respectively arranged at left and right sides of the seawater slot and seawater goes out Mouthful；The seawater slot side is provided with height of the weir plate to adjust seawater；The vaporization chamber is provided with slanting transverse slat To separate fresh water and concentrated seawater；The vaporization chamber upside is provided with water outlet.

The water way unit includes seawater circulation water way unit and pure water circulation waterway unit；Seawater circulation water route Unit includes that the seawater feed water inlet of sequence piping connection, water supply pump, the entrance of the condenser pipe of sea water desalination unit, condenser pipe go out Mouth, the seawater water inlet of heat exchange unit, seawater water outlet, the seawater inlet of seawater slot, seawer outlet, draining pump and concentrated water Drainpipe；The pure water circulation waterway unit includes the clean water inlet, water circulating pump, the temperature of sequence piping connection The circulation water inlet of the heat exchange fin of poor generator unit, circulating water outlet, the heat exchange unit cycling use of water entrance, follow Ring water out, the sea water desalination unit heat exchanger tube entrance, heat exchanger tube outlet, return clean water inlet form back Road.

The electricity accumulating unit includes the conducting wire connecting with the semiconductor thermo-electric generation apparatus being linked in sequence, power supply Management Controller and battery.

The battery passes through energy source router and the water supply pump, the draining pump, the water circulating pump And power grid connection.

Compared with prior art, the utility model has the beneficial effects that

Solar power generation and sea water desalination are used in combination the application, by solar energy optical-thermal thermo-electric generation be used for for seawater it is light Change system power supply.Meanwhile recycling heat using the temperature difference of hot and cold side in its power generation process is sea water desalination use, obtains resource Effectively adequately utilize.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model solar energy optical-thermal thermo-electric generation and sea water desalination integrated system；

Fig. 2 is the structural schematic diagram of the utility model thermo-electric generation unit；

Fig. 3 is the structural schematic diagram of the utility model heat exchange unit.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing The utility model is described in further detail with most preferred embodiment.

Fig. 1-3 shows a kind of solar energy optical-thermal thermo-electric generation and sea water desalination integrated system, the temperature difference including sequential connection Generator unit 1, heat exchange unit and sea water desalination unit and electricity accumulating unit and circulation waterway unit；

The thermo-electric generation unit includes insulation shell 30, the intracorporal semiconductor temperature differential generating dress of the shell is arranged in Set 24 and the hot end being separately positioned at left and right sides of the semiconductor thermo-electric generation apparatus and cold end；The hot end includes Transparent cover plate 22, the insulation absorber 23 being arranged on the inside of the transparent cover plate；The cold end includes insulator heat carrier 28 and heat exchange fin 26；The bottom in the hot end and cold end is respectively arranged with temperature sensor 31；The heat exchange fin One end connect with circulation water inlet 25, the other end is connect with the circulating water outlet 27；The semiconductor temperature differential generating Device is connect with conducting wire 29.

Thermo-electric generation unit shell is insulation shell 30, through transparent cover plate when solar irradiation is mapped to thermo-electric generation unit 22, and sunlight is absorbed by insulation absorber 23, it is converted into heat, heat passes to semiconductor temperature difference by the absorber 23 that insulate Power generator 24 forms hot end.Hot end heat is transmitted through semiconductor thermo-electric generation apparatus to cold end, is passed by insulating thermal conductor 28 It is handed to heat exchange fin 26, recirculated water enters temperature difference electricity generation device cold end through circulation water inlet 25, by the heat band of heat exchange fin 26 It walks, and is flowed out by circulating water outlet 27.Hot-side temperature and cold junction temperature are by 31 real-time monitoring of temperature sensor.

Semiconductor thermo-electric generation apparatus 24 generates electric current under the action of thermal difference of hot end and cold end, electric current by conducting wire 29 into Enter power source management controller 21.

Heat exchange unit include shell 2, the seawater inlet port 34 that the shell upside is set, be arranged in it is described The seawater strainer 32 that the shell middle position is arranged in, the sea is arranged in the seawater water outlet 36 of shell lower side The liquid level sensor 33 on water screen top and the heat exchanger 37 that the seawater strainer lower part is set；The heat is handed over Parallel operation one end is connect with cycling use of water entrance 38, and the other end is connect with cycling use of water outlet 35.

The heat exchange unit shell 2 of the utility model is made of carbon steel material, as shown in figure 3, being equipped with liquid inside shell 2 The liquid level in water tank can be monitored in real time in level sensor 33, and middle part is provided with sea water filter net 32, from seawater inlet port 34 The seawater come in enters the lower part of shell by the filtering of sea water filter net 32.The recirculated water of high temperature through circulating water inlet 38 into Enter shell 2, and is exported with after the preliminary heat exchange of Mare Frigoris water progress through cycling use of water by the heat exchanger 37 of 2 bottom of shell Heating is evaporated to concentrated seawater in the heat exchanger tube of 35 entrance vaporization chambers.

The sea water desalination unit includes three sea water desalination units being serially connected；The sea water desalination unit is logical Vacuum tube interconnection is crossed, the vacuum tube is connect to provide vacuum degree for the sea water desalination unit with vacuum pump 9； The sea water desalination unit includes the vaporization chamber 4 sealed, the condenser pipe 6 that the vaporization chamber upper end is arranged in, is arranged in institute Below the vaporization chamber stated seawater slot 15, the heat exchanger tube 17 that is arranged in the seawater slot；Pressure is provided in the vaporization chamber Pressure of the force snesor 5 to measure each vaporization chamber；Be respectively arranged at left and right sides of the described seawater slot seawater inlet and Seawer outlet；The seawater slot side is provided with height of the weir plate 20 to adjust seawater；The vaporization chamber is provided with tiltedly To transverse slat to separate fresh water and concentrated seawater and form fresh-water tank 19；The vaporization chamber upside be provided with water outlet with Fresh water pipe 14 connects.

Hot sea water after heat exchange unit heats, the sequentially seawater into 4 lower part of vaporization chamber of sea water desalination unit In slot 15, since the pressure in vaporization chamber 4 is lower than saturated vapor pressure corresponding to hot sea water temperature, so hot sea water is as overheat Water and be hastily vaporized, steam rises to the top of vaporization chamber 4, encounters cooling water pipe 6, is condensed into fresh water, desalinates water droplet Enter to summarize step by step after fresh-water tank 19 and be drawn from vaporization chamber 4.In order to enable evaporating indoor pressure lower than every level-one hot sea water temperature The corresponding saturated vapour pressure of degree, the vacuum degree of vaporization chamber 4 enhances step by step from water intake end to discharge ends, to reach higher thermal effect Rate and better economic benefit.The concentrated seawater finally generated is discharged by draining pump 12, concentrated water drainpipe 13.

The water way unit includes seawater circulation water way unit and pure water circulation waterway unit；Seawater circulation water route Unit include the seawater feed water inlet 11 of sequence piping connection, water supply pump 1, sea water desalination unit condenser pipe 6 entrance, condenser pipe 6 outlet, heat exchange unit seawater water inlet 34, seawater water outlet 36, the seawater inlet of seawater slot, seawer outlet, draining Pump 12 and concentrated water drainpipe 13；The pure water circulation waterway unit includes the clean water inlet 8 of sequence piping connection, follows Ring water pump 7, the thermo-electric generation unit heat exchange fin circulation water inlet 25, circulating water outlet 27, the heat exchange Cycling use of water entrance 38, the cycling use of water of unit export entrance, the heat exchanger tube of the heat exchanger tube 17 of 35, the sea water desalination unit Outlet, return clean water inlet form circuit.There is pressure sensor 5 inside 1 cold end of temperature difference electricity generation device, works as circulating water pressure When decline, the check valve 8 on circulation line is opened, and feeds pure water for circulation line.

It drives pure water to flow in circulating water pipe 3 by circulating pump 7, and enters the cold end of thermo-electric generation unit 1, flow through temperature Heat exchange fin 26 inside poor 1 cold end of generator unit absorbs heat to increase temperature, and the recirculated water after heating goes out through recirculated water The mouth of a river 27 is flowed out, and the shell 2 of heat exchange unit is flowed into, and is carried out preliminary heat by the heat exchanger and seawater of 2 lower part of shell and is handed over After changing, then the heat exchanger tube 17 of three vaporization chambers is sequentially entered, to achieve the purpose that high efficient heat exchanging, improves heat exchange efficiency, increase sea Water desalinates efficiency.

The electricity accumulating unit includes the conducting wire connecting with the semiconductor thermo-electric generation apparatus being linked in sequence, power supply Management Controller 21 and battery 18.The battery passes through energy source router 16 and the water supply pump, the row Water pump, the water circulating pump and power grid connection.

Due to the presence of the semiconductor power generation device both ends of the surface temperature difference, two output ends connect power management control by conducting wire 29 Device 21 processed accesses battery 18 after power source management controller 21.Semiconductor power generation device just generates electric current under action of thermal difference For the charging of battery 18.The electric energy that battery 18 stores by can after source router 16, be connected to water circulating pump 7, water supply pump 10, Draining pump 12 provides power supply for water pump.Due to the movement of electric current, pass 1 hot end heat of generating semiconductor device to cold end rapidly It passs.

Energy source router 16 can be adjusted according to the charge capacity of battery 18, when 18 electricity of battery is high, energy road While power supply from device 16 to water circulating pump 7, water supply pump 10, draining pump 12, electricity can be sent to power grid.When 18 electricity of battery When low, the electric energy in power grid can be supplied circulating pump 7, water supply pump 10, draining pump 12 by energy source router 16.

The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as Limitations of the present invention.

Claims

1. A solar light-thermal thermoelectric power generation and seawater desalination integrated system, characterized in that it comprises a thermoelectric power generation unit, a heat exchange unit and a seawater desalination unit connected in sequence, as well as a power storage unit and a circulating water circuit unit;

The thermoelectric power generation unit includes a thermal insulation casing, a semiconductor thermoelectric power generation device arranged in the casing, and a hot end and a cold end respectively arranged on the left and right sides of the semiconductor thermoelectric power generation device; the hot end includes a transparent cover plate, an insulating heat absorbing body arranged on the inner side of the transparent cover plate; the cold end includes an insulator heat conductor and a heat exchange fin; the bottoms of the hot end and the cold end are respectively provided with temperature sensors; One end of the heat exchange fin is connected with the circulating water inlet, and the other end is connected with the circulating water outlet; the semiconductor thermoelectric power generation device is connected with the wire.

2 . The integrated system of solar thermal thermoelectric power generation and seawater desalination according to claim 1 , wherein the heat exchange unit comprises a shell, a seawater inlet provided on the upper end of the shell, The seawater outlet at the lower end of the shell, the seawater filter screen disposed in the middle of the shell, the liquid level sensor disposed in the upper part of the seawater screen, and the heat exchange device disposed in the lower part of the seawater screen One end of the heat exchanger is connected with the circulating water inlet, and the other end is connected with the circulating water outlet.

3. The solar thermal thermoelectric power generation and seawater desalination integrated system according to claim 1, wherein the seawater desalination unit comprises three seawater desalination units connected in series; the seawater desalination units are connected to each other by a vacuum tube , the vacuum tube is connected with the vacuum pump to provide the vacuum degree for the seawater desalination unit; the seawater desalination unit includes a sealed evaporation chamber, a condenser tube arranged at the upper end of the evaporation chamber, and a The seawater tank below the chamber and the heat exchange tube arranged in the seawater tank; the evaporation chamber is provided with a pressure sensor to measure the pressure of each evaporation chamber; the seawater inlet and the left and right sides of the seawater tank are respectively provided with Seawater outlet; one side of the seawater tank is provided with a weir plate to adjust the height of seawater; the evaporation chamber is provided with an oblique horizontal plate to separate fresh water and concentrated seawater; the upper end of the evaporation chamber is provided with There are fresh water outlets.

4. The solar thermal thermoelectric power generation and seawater desalination integrated system according to claim 1, wherein the waterway unit comprises a seawater circulating waterway unit and a pure water circulating waterway unit; the seawater circulating waterway unit comprises a serial pipeline connected Seawater water supply port, water supply pump, inlet of condenser pipe of seawater desalination unit, outlet of condenser pipe, seawater inlet of heat exchange unit, seawater outlet, seawater inlet of seawater tank, seawater outlet, drainage pump and concentrated water drainage pipe; The pure water circulating water circuit unit includes a pure water inlet connected in sequence, a circulating water pump, a circulating water inlet and a circulating water outlet of the heat exchange fins of the thermoelectric power generation unit, and a circulating water inlet of the heat exchange unit. , the outlet of circulating water, the inlet of the heat exchange tube of the seawater desalination unit, the outlet of the heat exchange tube, and the inlet of the return pure water form a loop.

5 . The integrated system for solar thermal power generation and seawater desalination according to claim 4 , wherein the power storage unit comprises a lead wire connected to the semiconductor thermoelectric power generation device in sequence, and a power management controller. 6 . and battery.

6. The solar thermal thermoelectric power generation and seawater desalination integrated system according to claim 5, wherein the battery is connected to the water supply pump, the drainage pump, the circulating water pump and the grid connection.