CN219283675U - Efficient superconductive solar lithium bromide refrigerating device - Google Patents

Abstract

The embodiment of the utility model discloses a high-efficiency superconductive solar lithium bromide refrigerating device, which comprises: the solar energy superconductive heat collector, superconductive solar energy generator filled with lithium bromide water solution, condenser, evaporator, coiled pipe air cooler and absorber; the superconductive solar heat collector is communicated with the superconductive solar generator; the water vapor sequentially passes through the condenser, the evaporator and the absorber through pipelines; the absorber is communicated with the bottom of the superconducting solar generator; the inlet of the coil pipe air cooler is communicated with the external circulation outlet of the evaporator, and the outlet of the coil pipe air cooler is communicated with the external circulation inlet of the evaporator. Aiming at the technical defects of the existing absorption type solar refrigerating system, the device is designed for protecting the environment, avoiding pollution, reducing the refrigerating cost, improving the happiness index of people, organically combining the efficient superconductive solar heat conversion technology with the lithium bromide absorption type refrigerating system.

Description

Efficient superconductive solar lithium bromide refrigerating device

Technical Field

The utility model belongs to the technical field of solar refrigerators, and particularly relates to a high-efficiency superconductive solar lithium bromide refrigerating device.

Background

Solar energy is widely distributed and can be used as clean renewable energy, and is expected to play a more important role in future social energy structures. The use of solar energy for heating, heating and cooling is an important way to realize low cost use of solar energy. The solar refrigeration has the advantages of environmental protection and energy saving, and the consumed energy for the civil air conditioner internationally accounts for about 50% of the total power consumption of the civil air conditioner according to statistics. The solar energy is inexhaustible, and the solar refrigeration is used for air conditioning, so that the power consumption can be greatly reduced, and the energy is saved; the solar refrigeration generally adopts non-fluorocarbon substances as the refrigerant, so that the environmental pollution caused by fossil energy power generation can be reduced, the ozone layer destruction coefficient and the greenhouse effect coefficient are zero, and the solar refrigeration system is suitable for the current environmental protection requirement. Another advantage of solar refrigeration is that the heat supply and the cooling demand can be matched to each other in season and quantity, the stronger the solar radiation, the higher the air temperature, and the greater the cooling demand. Solar refrigeration can also meet the requirements of hot water bathing. In recent years, students in various countries are actively searching for an effective method capable of realizing air conditioning and refrigeration by using solar energy in summer.

At present, solar refrigeration mainly comprises a solar lithium bromide absorption refrigeration system, a solar ammonia absorption refrigeration system and a solar adsorption refrigeration system, wherein the solar adsorption refrigeration system stays in a laboratory stage, the ammonia absorption refrigeration system is harmful to human bodies and is limited by law, and the main reason that the existing lithium bromide absorption refrigeration system is limited to be widely applied is that the cost for obtaining heat energy is too high. The importance of cost reduction is to develop high efficiency solar collectors to improve thermodynamic performance. How to combine high-efficiency solar heat extraction and lithium bromide absorption refrigeration into a complete refrigeration system is one of the technologies developed mainly for solar refrigeration. The key point of solar heat collection is a heat collector, and almost all solar energy conversion and utilization are not separated from the solar heat collector at present. Solar collectors are of many types, and broadly can be divided into: flat plate type heat collector, vacuum tube heat collector and focusing heat collector. The flat plate type heat collector has relatively low cost, but the temperature for providing a heat source is low, and the refrigeration effect is not ideal; while focused collectors can provide higher heat source temperatures, but are cost prohibitive.

Disclosure of Invention

The utility model provides a high-efficiency superconductive solar lithium bromide refrigerating device which is used for solving the technical problems.

The embodiment of the utility model discloses a high-efficiency superconductive solar lithium bromide refrigerating device, which comprises: the solar energy superconductive heat collector, superconductive solar energy generator filled with lithium bromide water solution, condenser, evaporator, coiled pipe air cooler and absorber;

the superconducting solar heat collector is communicated with the superconducting solar generator, and is used for heating the superconducting working medium by utilizing solar energy so as to gasify the superconducting working medium and flow the superconducting working medium into the superconducting solar generator, and is used for heating lithium bromide aqueous solution in the superconducting solar generator to form water vapor;

the water vapor sequentially passes through the condenser, the evaporator and the absorber through pipelines; the absorber is communicated with the bottom of the superconducting solar generator and is used for receiving the lithium bromide aqueous solution after heating treatment, and the water vapor entering the absorber is used for diluting the lithium bromide aqueous solution in the absorber; pumping the diluted lithium bromide aqueous solution into the superconducting solar generator through a liquid pump;

the inlet of the coil pipe air cooler is communicated with the external circulation outlet of the evaporator, and the outlet of the coil pipe air cooler is communicated with the external circulation inlet of the evaporator; the water vapor cools into water in the condenser and enters the evaporator to evaporate, so that heat in cold water entering the external circulation of the evaporator is absorbed, the evaporator cools the cold water, and cooled cold water is provided to the coil pipe cooler for cooling a user.

Optionally, the method further comprises: a heat exchanger; the heat exchanger is arranged between the absorber and the superconductive solar generator and is used for pumping the aqueous solution of lithium bromide which is pumped to the superconductive solar generator in the absorber and the aqueous solution of lithium bromide which flows into the absorber.

Optionally, the superconducting solar collector comprises: the vacuum glass tube comprises a lower connecting header, an upper connecting header, a plurality of superconducting tubes vertically welded between the lower connecting header and the upper connecting header, a metal fin coated with a selective coating and arranged outside the superconducting tubes, and a vacuum glass tube coated with the selective coating and sleeved outside the metal fin, wherein the superconducting tubes are mutually parallel and communicated with the lower connecting header and the upper connecting header;

the vacuum glass tube and the superconducting tubes are in a sealed vacuum state;

a T-shaped heat exchanger is arranged in the superconducting solar generator;

the superconducting working medium is arranged in the lower connecting header; the upper connecting header is communicated with the inlet of the T-shaped heat exchanger through a gasification working medium conveying pipe; and the outlet of the T-shaped heat exchanger is communicated with the lower connecting header pipe through a liquefied working medium conveying pipe.

Optionally, a heat preservation pipe is sleeved on the liquefied working medium conveying pipe.

Optionally, the superconducting solar generator includes: a metal housing; the T-shaped heat exchanger comprises: a superconductive header, a radiating pipe and radiating fins;

the T-shaped heat exchanger is arranged at the middle lower part of the metal shell; the radiating pipes are vertically arranged on the superconducting joint pipe and are communicated with the superconducting joint pipe; the radiating fins are arranged on the radiating pipes.

Optionally, the superconductive solar generator is sequentially connected with the condenser, the throttle valve, the evaporator, the absorber, the pressure reducing valve, the heat exchanger and the liquid pump through pipelines to form a closed system, wherein the inside of the closed system formed by the non-working state of the system is in a negative pressure state, and the inside of the closed system formed by the working state of the system is in a positive pressure state.

Optionally, the condenser includes: the condenser comprises a condenser shell, a hydrophilic heat exchanger, a water inlet pipe and a water outlet pipe;

the hydrophilic heat exchanger is arranged in the condenser shell, the inlet of the hydrophilic heat exchanger is communicated with the superconductive solar generator, and the outlet of the hydrophilic heat exchanger is communicated with the inlet of the evaporator; a throttle valve is arranged on a connecting pipeline between the outlet of the hydrophilic heat exchanger and the inlet of the evaporator; the water inlet pipe is used for guiding external cooling water to the inside of the condenser shell, exchanging heat with the hydrophilic heat exchanger, and enabling the heated cooling water to flow out from the water outlet pipe.

Optionally, the evaporator includes: the evaporator comprises an evaporator shell, a finned tube heat exchanger, a water inlet and a water outlet;

the finned tube heat exchanger is arranged inside the evaporator shell; the water inlet and the water outlet are both formed in the evaporator shell, the inlet of the coil pipe air cooler is communicated with the water outlet of the evaporator, and the outlet of the coil pipe air cooler is communicated with the water inlet of the evaporator; an inlet of the fin tube heat exchanger is communicated with an outlet of the throttle valve, and an outlet of the fin tube heat exchanger is communicated with the absorber;

the finned tube heat exchanger is used for evaporating and gasifying water entering the finned tube heat exchanger so as to absorb heat of cold water to cool the cold water.

Optionally, the absorber includes: absorber housing, throttle valve;

the absorber shell is communicated with the evaporator, and the top of the absorber shell is communicated with the bottom of the superconducting solar generator and is used for receiving the heated lithium bromide solution in the superconducting solar generator; the liquid pump is communicated with the absorber shell through a pipeline and is used for pumping the lithium bromide solution in the absorber shell back to the superconducting solar generator; the throttle valve is arranged on a connecting pipeline of the superconducting solar generator and the absorber shell and is used for adjusting the flow rate of lithium bromide solution entering the absorber shell from the superconducting solar generator.

Optionally, an insulation layer is covered on the outer side wall of the superconducting solar generator.

The embodiment of the utility model discloses a high-efficiency superconductive solar lithium bromide refrigerating device, which comprises: the solar energy superconductive heat collector, superconductive solar energy generator filled with lithium bromide water solution, condenser, evaporator, coiled pipe air cooler and absorber; the superconducting solar heat collector is communicated with the superconducting solar generator, and is used for heating the superconducting working medium by utilizing solar energy so as to gasify the superconducting working medium and flow the superconducting working medium into the superconducting solar generator, and is used for heating lithium bromide aqueous solution in the superconducting solar generator to form water vapor; the water vapor sequentially passes through the condenser, the evaporator and the absorber through pipelines; the absorber is communicated with the bottom of the superconducting solar generator and is used for receiving the lithium bromide aqueous solution after heating treatment, and the water vapor entering the absorber is used for diluting the lithium bromide aqueous solution in the absorber; pumping the diluted lithium bromide aqueous solution into the superconducting solar generator through a liquid pump; the inlet of the coil pipe air cooler is communicated with the external circulation outlet of the evaporator, and the outlet of the coil pipe air cooler is communicated with the external circulation inlet of the evaporator; the water vapor cools into water in the condenser and enters the evaporator to evaporate, so that heat in cold water entering the external circulation of the evaporator is absorbed, the evaporator cools the cold water, and cooled cold water is provided to the coil pipe cooler for cooling a user. Aiming at the technical defects of the existing absorption type solar refrigerating system, the efficient superconductive solar heat conversion technology is organically combined with the lithium bromide absorption type refrigerating system through repeated research and experiment to develop the efficient superconductive solar lithium bromide refrigerating system, so as to protect the environment, avoid pollution, reduce the refrigerating cost and improve the happiness index of people.

Drawings

Fig. 1 is a schematic structural diagram of a high-efficiency superconductive solar lithium bromide refrigeration device according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an internal structure of a superconductive solar generator according to an embodiment of the present utility model.

In the figure, 1. A superconductive solar collector; 2. an aqueous lithium bromide solution; 3. a superconducting solar generator; 4. a condenser; 5. an evaporator; 6. a coil pipe air cooler; 7. an absorber; 8. superconducting working medium; 9. a liquid pump; 10. a heat exchanger; 11. a lower header; 12. an upper header; 13. a superconducting tube; 14. a metal fin; 15. a vacuum glass tube; a t-type heat exchanger; 17. a gasification working medium conveying pipe; 18. a liquefied working medium conveying pipe; 19. a heat preservation pipe; 20. a metal housing; 21. a superconducting manifold; 22. a heat radiating pipe; 23. a heat radiation fin; 24. a condenser housing; 25. a hydrophilic heat exchanger; 26. a water inlet pipe; 27. a water outlet pipe; 28. an evaporator housing; 29. a fin tube heat exchanger; 30. a water inlet; 31. a water outlet; 32. an absorber housing; 33. a throttle valve; 34. and a heat preservation layer.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific embodiments.

Example 1

Aiming at the technical defects of the existing absorption type solar refrigerating system, the efficient superconductive solar heat conversion technology is organically combined with the lithium bromide absorption type refrigerating system through repeated research and experiment to develop the efficient superconductive solar lithium bromide refrigerating system, so as to protect the environment, avoid pollution, reduce the refrigerating cost and improve the happiness index of people.

Referring to fig. 1, the embodiment of the utility model discloses a high-efficiency superconductive solar lithium bromide refrigeration device, which comprises: the solar energy superconductive heat collector 1, the superconductive solar energy generator 3 filled with lithium bromide water solution 2, the condenser 4, the evaporator 5, the coil pipe air cooler 6 and the absorber 7; the superconducting solar heat collector 1 is provided with a superconducting working medium 8, the superconducting solar heat collector 1 is communicated with the superconducting solar generator 3, the superconducting solar heat collector 1 is used for heating the superconducting working medium 8 by solar energy so as to gasify the superconducting working medium 8 and flow the superconducting working medium 8 into the superconducting solar generator 3, and is used for heating a lithium bromide aqueous solution 2 in the superconducting solar generator 3 to form water vapor; the water vapor passes through the condenser 4, the evaporator 5 and then into the absorber 7 in sequence via a pipe; the absorber 7 is communicated with the bottom of the superconducting solar generator 3 and is used for receiving the lithium bromide aqueous solution 2 after heat treatment, and the water vapor entering the absorber 7 is used for diluting the lithium bromide aqueous solution 2 in the absorber 7; the diluted lithium bromide aqueous solution 2 is pumped into the superconducting solar generator 3 through a liquid pump 9; an inlet of the coil air cooler 6 is communicated with an external circulation outlet of the evaporator 5, and an outlet of the coil air cooler 6 is communicated with an external circulation inlet of the evaporator 5; the water vapor cools into water in the condenser 4 and enters the evaporator 5 to evaporate, so as to absorb heat in cold water entering the external circulation of the evaporator 5, so that the evaporator 5 cools the cold water, and the cooled cold water is provided to the coil pipe cooler 6 to be used for cooling a user.

It should be noted that: superconductive solar lithium bromide refrigerating device principle: since the boiling point of the lithium bromide aqueous solution 2 is high at 1265 ℃ and is extremely difficult to volatilize, the steam on the liquid surface of the lithium bromide saturated solution can be considered as pure water steam; at a certain temperature, the saturation partial pressure of water vapor on the liquid surface of the lithium bromide aqueous solution 2 is smaller than that of pure water; and the higher the concentration, the smaller the partial pressure of water vapor saturation above the liquid surface. The greater the concentration of aqueous lithium bromide solution 2, the greater its ability to absorb moisture under the same temperature conditions. This is why lithium bromide is generally used as the absorbent and water as the refrigerant. In the running process of the superconducting solar lithium bromide refrigerating device, after the lithium bromide aqueous solution 2 is heated by heat medium water in the generator, the water in the solution is continuously vaporized; along with the continuous vaporization of water, the concentration of the lithium bromide aqueous solution 2 in the generator is continuously increased and enters the absorber 7; the water vapor enters the condenser 4 and is condensed after being cooled by cooling water in the condenser 4 to become high-pressure low-temperature liquid water; when the water in the condenser 4 enters the evaporator 5 through the throttle valve, the water rapidly expands and is vaporized, and a large amount of heat of the refrigerant water in the evaporator 5 is absorbed in the vaporization process, and the refrigerant water is sent into the coil pipe air cooler 6, so that the purposes of cooling and refrigerating are achieved. In the process, low-temperature water vapor enters the absorber 7 and is absorbed by the lithium bromide aqueous solution 2 in the absorber 7, the concentration of the solution is gradually reduced, and the solution is pumped back to the generator by the circulating pump to complete the whole cycle. The circulation is not stopped, and the cold is continuously produced. Because the lithium bromide dilute solution is cooled in the absorber 7, the temperature is lower, in order to save the heat for heating the dilute solution and improve the heat efficiency of the whole device, a heat exchanger is added in the system, so that the high-temperature concentrated solution flowing out of the generator exchanges heat with the low-temperature dilute solution flowing out of the absorber 7, and the temperature of the dilute solution entering the generator is improved. Among them, the principle of lithium bromide absorption refrigerator is the most prominent: for continuous refrigeration, the evaporated refrigerant is returned to a liquid state by a certain means, thereby realizing a refrigeration cycle.

Further, the method further comprises the following steps: a heat exchanger 10; the heat exchanger 10 is arranged between the absorber 7 and the superconductive solar generator 3 for pumping the aqueous lithium bromide 2 pumped into the superconductive solar generator 3 in the absorber 7 and the aqueous lithium bromide 2 flowing into the absorber 7.

In this exemplary embodiment, in order to save the heat for heating the lithium bromide dilute solution in the whole device, a heat exchanger is added between the generator and the absorber 7, namely, the high-temperature high-concentration solution flowing out of the generator and the low-temperature low-concentration solution pumped back from the absorber 7 are subjected to heat exchange, so that the temperature of the recycled dilute solution is increased, and the thermal efficiency of the device is improved.

Further, referring to fig. 2, the superconducting solar collector 1 includes: the device comprises a lower header 11, an upper header 12, a plurality of superconducting tubes 13 vertically welded between the lower header 11 and the upper header 12 in parallel and communicated with the lower header 11 and the upper header 12, metal fins 14 coated with selective coating and arranged outside the superconducting tubes 13, and vacuum glass tubes 15 coated with selective coating and sleeved outside the metal fins 14; the vacuum glass tube 15 and the superconducting tubes 13 are in a sealed vacuum state; a T-shaped heat exchanger 16 is arranged in the superconducting solar generator 3; the superconducting working medium 8 is arranged in the lower connecting header 11; the upper connecting header 12 is communicated with the inlet of the T-shaped heat exchanger 16 through a gasification working medium conveying pipe 17; the outlet of the T-shaped heat exchanger 16 is communicated with the lower connecting header 11 through a liquefied working medium conveying pipe 18.

In this exemplary embodiment, the outer sidewall of the superconductive solar generator 3 is covered with a heat insulation layer 34.

In this exemplary embodiment, the efficient superconductive solar lithium bromide refrigeration system is composed of a superconductive solar collector 1, a superconductive solar generator 3, a condenser 4, a throttle valve, an evaporator 5, an absorber 7, a pressure reducing valve, a heat exchanger 10, a solution pump, a cold air coil pipe and a pipeline, and is characterized in that the superconductive solar collector 1 is composed of a lower header 11, an upper header 12, a plurality of superconductive pipes 13 which are vertically welded between the lower header 11 and the upper header 12 in parallel and are communicated with the lower header 11 and the upper header 12, a metal fin 14 which is arranged outside the superconductive pipes 13 and is coated with a selective coating, a vacuum glass pipe 15 which is sheathed outside the metal fin 14 and is in a sealed vacuum state, a superconductive pipe 8 which is arranged in the lower header 11, the upper header 12 and a T-shaped heat exchanger 16 inlet in the solar generator are communicated through a gasification working medium conveying pipe 17, and a T-shaped heat exchanger 16 outlet is communicated with the lower header 11 of the superconductive solar collector 1 through a liquefaction conveying pipe 18. The superconductive solar heat collector 1 is placed outside a user chamber Yang Guangmian, receives sunlight irradiation, irradiates the sun on a vacuum glass tube 15 coated with a selective coating and a metal fin 14 coated with the selective coating, converts light energy into heat energy rapidly at high efficiency, the superconductive working medium 8 in the lower header 11 is gasified, and the gasified latent heat is sent into a T-shaped heat exchanger 16 and surrounding lithium bromide aqueous solution 2 in the solar generator through a plurality of superconductive tubes 13, an upper header 12 and a gasified working medium conveying tube 17. The superconductive solar lithium bromide refrigerating device uses lithium bromide aqueous solution 2 as working medium, wherein water is refrigerant, and lithium bromide is absorbent. Lithium bromide is easily dissolved in water, nontoxic and stable in chemical property. The aqueous lithium bromide solution 2 is non-corrosive to steel in the absence of air in the system. The superconductive solar lithium bromide refrigerating device uses water as refrigerant, and the evaporating temperature is above 0 ℃, so that the superconductive solar lithium bromide refrigerating device can be used as a heat source by using solar heat energy above 75 ℃ for air conditioning refrigerating equipment. After the aqueous lithium bromide solution 2 in the generator is heated, water in the solution is gasified into high-temperature and high-pressure water vapor, so that the concentration of the aqueous lithium bromide solution 2 is increased and enters the absorber 7. And the generated high-temperature and high-pressure water vapor enters the condenser 4 through a pipe.

In this example embodiment, the heat medium water generated by the solar collector flows through the generator, heating the lithium bromide aqueous solution 2 in the generator. The water in the solution evaporates into water vapor, resulting in an increase in the concentration of the aqueous lithium bromide solution 2, which enters the absorber 7. The generated steam enters the condenser 4, and is liquefied into low-temperature high-pressure liquid water by the action of the cooling water. The water with low temperature and high pressure reaches the evaporator 5 through the throttle valve, and the vaporization process needs to absorb heat because of the expansion of the volume, so that the heat of the refrigerant water in the evaporator 5 is greatly removed, and the refrigerating effect is achieved. At the same time, the low-temperature water vapor enters the human absorber 7 and is absorbed by the high-concentration lithium bromide aqueous solution 2 in the human absorber to be changed into a dilute solution. The dilute lithium bromide solution is pumped back to the generator by a solution pump for the next cycle. And repeatedly circulating in this way, and continuously refrigerating. In addition, in order to save the heat for heating the lithium bromide dilute solution in the whole device, a heat exchanger is additionally arranged between the generator and the absorber 7 and is used for enabling the high-temperature high-concentration solution flowing out of the generator to exchange heat with the low-temperature low-concentration solution pumped back from the absorber 7, so that the temperature of the recycled dilute solution is increased, and the thermal efficiency of the device is improved.

In one embodiment, a heat preservation pipe 19 is sleeved on the liquefied working medium conveying pipe 18.

In one embodiment, the superconducting solar generator 3 comprises: a metal housing 20; the T-shaped heat exchanger 16 includes: a superconducting manifold 21, radiating pipes 22, and radiating fins 23; the T-shaped heat exchanger 16 is installed at the middle lower part of the metal shell 20; the radiating pipe 22 is vertically installed on the superconducting joint pipe 21 and communicates with the superconducting joint pipe 21; the radiating fin 23 is mounted on the radiating pipe 22.

In this exemplary embodiment, the superconductive solar generator is composed of a metal shell, a T-shaped heat exchanger 16 installed at the middle and lower part of the metal shell, and a binary lithium bromide water solution composed of lithium bromide and water with large boiling point difference around the T-shaped heat exchanger 16, wherein the water with low boiling point is a refrigerant, the lithium bromide with high boiling point is an absorbent, the T-shaped heat exchanger 16 is composed of a plurality of radiating pipes 22 vertically communicated with the superconductive header 21 by the superconductive header 21, a plurality of radiating fins 23 are installed on the radiating pipes 22, and a liquefied working medium conveying pipe 18 is installed on the gasifying working medium conveying pipe 17 of the superconductive solar collector 1, and the upper part of the T-shaped heat exchanger 16 is high-temperature and high-pressure water vapor when the system works.

In a specific embodiment, the superconductive solar generator is sequentially connected with the condenser 4, the throttle valve, the evaporator 5, the absorber 7, the pressure reducing valve, the heat exchanger 10 and the liquid pump 9 through pipelines to form a closed system, wherein the closed system formed by the non-working state of the system is in a negative pressure state, and the closed system formed by the working state of the system is in a positive pressure state.

In this exemplary embodiment, the superconducting solar generator is sequentially connected with the condenser 4, the throttle valve, the evaporator 5, the absorber 7, the pressure reducing valve, the heat exchanger 10 and the solution pump through pipes to form a closed system, wherein the inside of the closed system formed in a non-working state of the system is in a negative pressure state, and the inside of the closed system formed in a working state of the system is in a positive pressure state.

In one embodiment, the condenser 4 comprises: a condenser housing 24, a hydrophilic heat exchanger 25, a water inlet pipe 26, a water outlet pipe 27; the hydrophilic heat exchanger 25 is arranged inside the condenser shell 24, the inlet of the hydrophilic heat exchanger 25 is communicated with the superconductive solar generator 3, and the outlet of the hydrophilic heat exchanger 25 is communicated with the inlet of the evaporator 5; a throttle valve is arranged on a connecting pipeline between the outlet of the hydrophilic heat exchanger 25 and the inlet of the evaporator 5; the water inlet pipe 26 is used for guiding external cooling water to the inside of the condenser shell 24 and exchanging heat with the hydrophilic heat exchanger 25, and the heated cooling water flows out from the water outlet pipe 27.

In this example embodiment, the condenser 4 is composed of a condenser 4 shell, a hydrophilic heat exchanger 25 installed in the condenser 4 shell, cooling water around the hydrophilic heat exchanger 25, a water inlet pipe 26 and a water outlet pipe 27 installed on the shell, wherein the hydrophilic heat exchanger 25 is connected with a generator through a high-temperature high-pressure water inlet pipe, the hydrophilic heat exchanger 25 is connected with a throttle valve and an evaporator 5 through a high-temperature low-pressure water outlet pipe when the system works, high-temperature high-pressure steam generated by the generator enters the hydrophilic heat exchanger 25 of the condenser 4 through the high-temperature high-pressure water inlet pipe, and liquid water liquefied into low-temperature high-pressure liquid water enters the evaporator 5 through the high-temperature low-pressure water outlet pipe and the throttle valve under the action of the cooling water.

In one embodiment, the evaporator 5 comprises: an evaporator housing 28, a finned tube heat exchanger 29, a water inlet 30, a water outlet 31; the finned tube heat exchanger 29 is mounted inside the evaporator housing 28; the water inlet 30 and the water outlet 31 are both formed in the evaporator shell 28, the inlet of the coil air cooler 6 is communicated with the water outlet 31 of the evaporator 5, and the outlet of the coil air cooler 6 is communicated with the water inlet 30 of the evaporator 5; an inlet of the fin tube heat exchanger 29 communicates with an outlet of the throttle valve, and an outlet of the fin tube heat exchanger 29 communicates with the absorber 7; the fin tube heat exchanger 29 is used for evaporating and gasifying water entering the fin tube heat exchanger for cooling cold water by absorbing heat of the cold water.

In the present exemplary embodiment, the evaporator 5 is constituted by the evaporator 5 housing, the fin tube heat exchanger 29 installed in the evaporator 5 housing, and the blower blows out the cold air around the evaporator 5 to adjust the indoor temperature, since the low-temperature high-pressure water from the condenser 4 reaches the evaporator 5 through the throttle valve, vaporization occurs due to expansion of the volume, and the vaporization process requires heat absorption, so that the heat of the air around the evaporator 5 is largely taken away to the effect of cooling.

In one embodiment, the absorber 7 comprises: absorber housing 32, throttle valve 33; the absorber housing 32 is communicated with the evaporator 5, and the top of the absorber housing 32 is communicated with the bottom of the superconducting solar generator 3 and is used for receiving the lithium bromide solution heated in the superconducting solar generator 3; the liquid pump 9 is communicated with the absorber shell 32 through a pipeline and is used for pumping the lithium bromide solution in the absorber shell 32 back to the superconducting solar generator 3; the throttle valve 33 is arranged on a connecting pipeline of the superconducting solar generator 3 and the absorber housing 32, and the throttle valve 33 is used for adjusting the flow rate of lithium bromide solution entering the absorber housing 32 from the superconducting solar generator 3.

In the present exemplary embodiment, the absorber 7 is constituted by an absorber 7 housing, the high concentration lithium bromide aqueous solution 2 contained in the absorber 7 housing, the liquid pump 9 connected thereto, and the throttle valve 33, and the low temperature water vapor from the evaporator 5 enters the absorber 7 and is absorbed by the high concentration lithium bromide aqueous solution 2 therein, thereby becoming a lithium bromide dilute solution. The dilute lithium bromide solution is pumped back to the generator by a solution pump for the next cycle. And repeatedly circulating in this way, and continuously refrigerating.

It should be noted that the above-described embodiments apply for some, but not all embodiments. All other embodiments, based on the embodiments in the application, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the application. In this specification, each embodiment is mainly described in the specification as a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.

Claims (10)

1. A high efficiency superconductive solar lithium bromide refrigeration device, comprising: the solar energy superconductive heat collector (1), the superconductive solar energy generator (3) filled with lithium bromide aqueous solution (2), the condenser (4), the evaporator (5), the coil pipe air cooler (6) and the absorber (7);

the superconducting solar heat collector (1) is provided with a superconducting working medium (8), the superconducting solar heat collector (1) is communicated with the superconducting solar generator (3), the superconducting solar heat collector (1) is used for heating the superconducting working medium (8) by solar energy so that the superconducting working medium (8) is gasified and flows into the superconducting solar generator (3) and is used for heating a lithium bromide aqueous solution (2) in the superconducting solar generator (3) to form water vapor;

the water vapor passes through the condenser (4), the evaporator (5) and enters the absorber (7) in sequence through a pipeline; the absorber (7) is communicated with the bottom of the superconducting solar generator (3) and is used for receiving the lithium bromide aqueous solution (2) after heat treatment, and the water vapor entering the absorber (7) is used for diluting the lithium bromide aqueous solution (2) in the absorber (7); pumping the diluted lithium bromide aqueous solution (2) into the superconducting solar generator (3) through a liquid pump (9);

the inlet of the coil pipe air cooler (6) is communicated with the external circulation outlet of the evaporator (5), and the outlet of the coil pipe air cooler (6) is communicated with the external circulation inlet of the evaporator (5); the water vapor cools into water in the condenser (4) and enters the evaporator (5) to evaporate, so that heat in cold water entering the external circulation of the evaporator (5) is absorbed, the evaporator (5) cools the cold water, and the cooled cold water is provided to the coil pipe cooler (6) to be used for cooling a user.

2. The efficient superconducting solar lithium bromide refrigeration device of claim 1, further comprising: a heat exchanger (10); the heat exchanger (10) is arranged between the absorber (7) and the superconductive solar generator (3) and is used for pumping the aqueous lithium bromide solution (2) which is pumped to the superconductive solar generator (3) in the absorber (7) and the aqueous lithium bromide solution (2) which flows into the absorber (7).

3. A high efficiency superconducting solar lithium bromide refrigeration device according to claim 1, wherein the superconducting solar collector (1) comprises: the device comprises a lower header (11), an upper header (12), a plurality of superconducting tubes (13) which are vertically welded between the lower header (11) and the upper header (12) in parallel and communicated with the lower header (11) and the upper header (12), metal fins (14) which are arranged outside the superconducting tubes (13) and coated with selective coatings, and vacuum glass tubes (15) which are sleeved outside the metal fins (14) and coated with selective coatings;

the vacuum glass tube (15) and the superconducting tubes (13) are in a sealed vacuum state;

a T-shaped heat exchanger (16) is arranged in the superconducting solar generator (3);

the superconducting working medium (8) is arranged in the lower connecting header (11); the upper connecting header (12) is communicated with the inlet of the T-shaped heat exchanger (16) through a gasification working medium conveying pipe (17); the outlet of the T-shaped heat exchanger (16) is communicated with the lower connecting header (11) through a liquefied working medium conveying pipe (18).

4. A high efficiency superconductive solar lithium bromide refrigeration device according to claim 3, characterized in that a heat preservation pipe (19) is sleeved on the liquefied working medium conveying pipe (18).

5. A high efficiency superconducting solar lithium bromide refrigeration device according to claim 3, wherein the superconducting solar generator (3) comprises: a metal housing (20); the T-shaped heat exchanger (16) comprises: a superconducting joint pipe (21), radiating pipes (22) and radiating fins (23);

the T-shaped heat exchanger (16) is arranged at the middle lower part of the metal shell (20); the radiating pipes (22) are vertically arranged on the superconducting joint pipe (21) and are communicated with the superconducting joint pipe (21); the radiating fin (23) is mounted on the radiating pipe (22).

6. The efficient superconductive solar lithium bromide refrigeration device according to claim 2, wherein the superconductive solar generator is connected with the condenser (4), the throttle valve, the evaporator (5), the absorber (7), the pressure reducing valve, the heat exchanger (10) and the liquid pump (9) in sequence through pipelines to form a closed system, wherein the closed system is in a negative pressure state in a closed system formed by a non-working state of the system, and the closed system is in a positive pressure state in a working state of the system.

7. A high efficiency superconducting solar lithium bromide refrigeration device according to claim 1, wherein the condenser (4) comprises: a condenser shell (24), a hydrophilic heat exchanger (25), a water inlet pipe (26) and a water outlet pipe (27);

the hydrophilic heat exchanger (25) is arranged in the condenser shell (24), the inlet of the hydrophilic heat exchanger (25) is communicated with the superconductive solar generator (3), and the outlet of the hydrophilic heat exchanger (25) is communicated with the inlet of the evaporator (5); a throttle valve is arranged on a connecting pipeline between the outlet of the hydrophilic heat exchanger (25) and the inlet of the evaporator (5); the water inlet pipe (26) is used for guiding external cooling water into the condenser shell (24) and exchanging heat with the hydrophilic heat exchanger (25), and the heated cooling water flows out from the water outlet pipe (27).

8. A high efficiency superconducting solar lithium bromide refrigeration device according to claim 7, wherein the evaporator (5) comprises: an evaporator shell (28), a finned tube heat exchanger (29), a water inlet (30) and a water outlet (31);

the finned tube heat exchanger (29) is mounted inside the evaporator housing (28); the water inlet (30) and the water outlet (31) are both formed in the evaporator shell (28), the inlet of the coil pipe air cooler (6) is communicated with the water outlet (31) of the evaporator (5), and the outlet of the coil pipe air cooler (6) is communicated with the water inlet (30) of the evaporator (5); an inlet of a finned tube heat exchanger (29) is in communication with an outlet of the throttle valve, an outlet of the finned tube heat exchanger (29) is in communication with the absorber (7);

the finned tube heat exchanger (29) is used for evaporating and gasifying water entering the finned tube heat exchanger for absorbing heat of cold water to cool the cold water.

9. A high efficiency superconducting solar lithium bromide refrigeration device according to claim 8, wherein the absorber (7) comprises: an absorber housing (32), a throttle valve (33);

the absorber shell (32) is communicated with the evaporator (5), and the top of the absorber shell (32) is communicated with the bottom of the superconducting solar generator (3) and is used for receiving the lithium bromide solution heated in the superconducting solar generator (3); the liquid pump (9) is communicated with the absorber shell (32) through a pipeline and is used for pumping the lithium bromide solution in the absorber shell (32) back to the superconducting solar generator (3); the throttle valve (33) is arranged on a connecting pipeline of the superconducting solar generator (3) and the absorber shell (32), and the throttle valve (33) is used for adjusting the flow rate of lithium bromide solution entering the absorber shell (32) from the superconducting solar generator (3).

10. A high efficiency superconductive solar lithium bromide refrigeration device according to claim 1, characterized in that the outer side wall of the superconductive solar generator (3) is covered with an insulating layer (34).

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