Metal hydride compressor system utilizing ionic compounds for cooling and heating

Abstract

The utility model relates to metal hydride compressor technical field especially utilizes a kind of metal hydride compressor system of ion compound cooling and heating, including generator, ion compound concentrated solution is equipped in generator, the top outlet of generator is connected with the inlet of condenser by pipeline, the outlet of condenser is connected with the inlet of evaporator by pipeline through throttle valve A, the outlet of evaporator is connected with the inlet of absorber by pipeline, ion compound dilute solution is equipped in absorber, the outlet of absorber is connected with the inlet of generator by pipeline through solution pump, the bottom outlet of generator is connected with absorber through throttle valve B by pipeline;The hygroscopic exothermic reaction of ion compound is combined with metal hydride compressor, hydrogen is released after hydrogen release bottle heating, the compression release of hydrogen is realized;Hydrogen is absorbed after hydrogen absorption bottle cooling, the replenishment of hydrogen is realized, hydrogen release bottle can be connected fuel cell, hydrogen is provided to fuel cell and generates electricity.

Description

Technical fields:

[0001] This utility model relates to the field of metal hydride compressor technology, and in particular to a metal hydride compressor system that utilizes ionic compounds for cooling and heating. Background technology:

[0002] Currently, in metal hydride compressors, hydrogen is typically stored in a hydrogen storage tank containing a hydrogen storage alloy. This alloy is a metal that can absorb hydrogen and form chemical bonds with it, allowing it to absorb and release hydrogen based on temperature changes. However, current hydrogen storage tanks require separate heating devices for releasing hydrogen and separate cooling devices for absorbing it, both of which consume significant amounts of energy. Ionic compounds such as lithium bromide, due to their strong hygroscopic properties and ability to produce water vapor when heated (water vapor releases heat when turning into water, and water absorbs heat when turning into water vapor), could potentially save substantial energy if these heat absorption and release processes of water vapor could be integrated into the hydrogen storage tank of the metal hydride compressor. Currently, there is no satisfactory solution to the aforementioned problems.

[0003] In summary, the aforementioned problems with metal hydride compressors during use have become a pressing technical challenge that needs to be addressed within the industry. Utility model content:

[0004] To overcome the shortcomings of existing technologies, this invention provides a metal hydride compressor system that utilizes ionic compounds for cooling and heating, thus solving the problem of the need for separate heating and cooling devices for hydrogen storage cylinders, which consumes additional energy.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A metal hydride compressor system utilizing ionic compounds for cooling and heating includes a generator containing a concentrated solution of the ionic compound. The top outlet of the generator is connected to the inlet of a condenser via a pipeline. The outlet of the condenser is connected to the inlet of an evaporator via a pipeline and a throttling valve A. The outlet of the evaporator is connected to the inlet of an absorber via a pipeline. The absorber contains a dilute solution of the ionic compound. The outlet of the absorber is connected to the inlet of the generator via a pipeline and a solution pump. The bottom outlet of the generator is connected to the absorber via a pipeline and a throttling valve B.

[0007] The condenser exchanges heat with heat exchanger A. Heat exchanger A is connected to the cooling tower via a circulation pipeline. The outlet of heat exchanger A is connected to the heater via a pipeline. The heater is equipped with a hydrogen release bottle with a built-in hydrogen storage alloy. The heater is used to heat the hydrogen release bottle to release hydrogen.

[0008] The evaporator exchanges heat with heat exchanger B, which is connected to a cooling tower via a circulation pipeline. The outlet of heat exchanger B is connected to a cooler via a pipeline. The cooler is equipped with a hydrogen absorption bottle containing a hydrogen storage alloy. The cooler is used to cool the hydrogen absorption bottle to absorb hydrogen.

[0009] The heater is equipped with a heating coil. The inlet of the heating coil is connected to the outlet of heat exchanger A through a pipeline, and the outlet of the heating coil is connected to the cooling tower through a pipeline.

[0010] The cooler is equipped with a cooling coil. The inlet of the cooling coil is connected to the outlet of heat exchanger B through a pipeline, and the outlet of the cooling coil is connected to the cooling tower through a pipeline.

[0011] The generator uses solar energy or industrial waste heat for heating.

[0012] The inlet of heat exchanger B is connected to a low-temperature water source, either tap water or well water.

[0013] A heat exchanger is installed between the pipeline containing the throttle valve B and the pipeline containing the solution pump.

[0014] The outlet of the hydrogen release cylinder is connected to the fuel cell.

[0015] The inlet of the hydrogen absorption bottle is connected to the hydrogen storage tank.

[0016] Pressure sensors are installed on both the hydrogen release bottle and the hydrogen absorption bottle.

[0017] The ionic compound includes lithium bromide.

[0018] The present invention adopts the above solution and has the following advantages:

[0019] By combining the hygroscopic and exothermic reaction of ionic compounds with a metal hydride compressor, water and ionic compounds are separated after the generator is heated to form a concentrated solution of ionic compounds. The generated water vapor enters the condenser, which exchanges heat with heat exchanger A. The circulating water in heat exchanger A is heated and then directed to the heater. The heater contains a hydrogen release bottle with a built-in hydrogen storage alloy. Heating the hydrogen release bottle releases hydrogen gas, achieving the compressed release of hydrogen. The liquid water generated after passing through the condenser enters the evaporator, where it boils and evaporates into water vapor. The evaporator exchanges heat with heat exchanger B, cooling the circulating water in heat exchanger B before it is directed to the cooler. The cooler contains a hydrogen absorption bottle with a built-in hydrogen storage alloy. After cooling, the hydrogen absorption bottle absorbs hydrogen gas, achieving hydrogen replenishment. The water vapor generated in the evaporator enters the absorber, where water vapor and ionic compounds fuse to form a dilute solution of ionic compounds. The dilute solution of ionic compounds is pumped back to the generator for further evaporation and concentration via a solution pump. The concentrated solution of ionic compounds in the generator then flows back to the absorber through pipelines to enter the next cycle. Once the hydrogen in the hydrogen release bottle has been released and the hydrogen in the hydrogen absorption bottle has been absorbed, the hydrogen release bottle and the hydrogen absorption bottle can be interchanged and used alternately. The hydrogen release bottle can be connected to a fuel cell to provide hydrogen to the fuel cell for power generation. Attached image description:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram, 1. Generator, 2. Concentrated ionic compound solution, 3. Condenser, 4. Throttling valve A, 5. Evaporator, 6. Absorber, 7. Dilute ionic compound solution, 8. Solution pump, 9. Throttling valve B, 10. Heat exchanger A, 11. Cooling tower, 12. Heater, 13. Hydrogen release tank, 14. Heat exchanger B, 15. Cooler, 16. Hydrogen absorption tank, 17. Heating coil, 18. Cooling coil, 19. Heat exchanger. Detailed implementation method:

[0022] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0023] like Figure 1As shown, a metal hydride compressor system utilizing ionic compounds for cooling and heating includes a generator 1 containing a concentrated ionic compound solution 2. The top outlet of the generator 1 is connected to the inlet of a condenser 3 via a pipeline. The outlet of the condenser 3 is connected to the inlet of an evaporator 5 via a pipeline and a throttle valve A4. The outlet of the evaporator 5 is connected to the inlet of an absorber 6 via a pipeline. The absorber 6 contains a dilute ionic compound solution 7. The outlet of the absorber 6 is connected to the inlet of the generator 1 via a pipeline and a solution pump 8. The bottom outlet of the generator 1 is connected to the absorber 6 via a pipeline and a throttle valve B9.

[0024] The condenser 3 exchanges heat with the heat exchanger A10. The heat exchanger A10 is connected to the cooling tower 11 via a circulation pipeline. Specifically, one outlet of the heat exchanger A10 is connected to the cooling tower 11, and the cooling tower 11 is connected to the inlet of the heat exchanger A10 via a pipeline. The other outlet of the heat exchanger A10 is connected to the heater 12 via a pipeline. The heater 12 is equipped with a hydrogen release bottle 13, which contains a hydrogen storage alloy. The heater 12 is used to heat the hydrogen release bottle 13 to release hydrogen.

[0025] The evaporator 5 exchanges heat with the heat exchanger B14. The heat exchanger B14 is connected to the cooling tower 11 via a circulation pipeline. The outlet of the heat exchanger B14 is connected to the cooler 15 via a pipeline. The cooler 15 is equipped with a hydrogen absorption bottle 16, which contains a hydrogen storage alloy. The cooler 15 is used to cool the hydrogen absorption bottle 16 to absorb hydrogen.

[0026] The heater 12 is equipped with a heating coil 17. The inlet of the heating coil 17 is connected to the outlet of the heat exchanger A10 through a pipeline, and the outlet of the heating coil 17 is connected to the cooling tower 11 through a pipeline. The high-temperature water from the outlet of the heat exchanger A10 enters the heating coil 17 through the pipeline, which can improve the heating efficiency and fully heat the hydrogen release bottle 13 to achieve continuous hydrogen release. The water circulates in the heating coil 17 and then returns to the cooling tower 11 through the pipeline for recycling.

[0027] The cooler 15 is equipped with a cooling coil 18. The inlet of the cooling coil 18 is connected to the outlet of the heat exchanger B14 through a pipeline, and the outlet of the cooling coil 18 is connected to the cooling tower 11 through a pipeline. The cooling water from the outlet of the heat exchanger B14 enters the cooling coil 18 through the pipeline, which can improve the cooling efficiency and fully cool the hydrogen absorption bottle 16 to achieve continuous hydrogen absorption. The water circulates in the cooling coil 18 and then enters the cooling tower 11 through the pipeline, and then returns to the inlet of the heat exchanger B14 through the pipeline for recycling.

[0028] The generator 1 uses solar energy or industrial waste heat for heating.

[0029] The inlet of the heat exchanger B14 is connected to a low-temperature water source, either tap water or well water, which can replenish the water volume inside the system.

[0030] A heat exchanger 19 is provided between the pipeline where the throttle valve B9 is located and the pipeline where the solution pump 8 is located. The heat exchanger 19 allows the liquid in the pipeline of the throttle valve B9 to exchange heat with the liquid in the pipeline of the solution pump 8, which can preheat the liquid entering the generator 1 and improve the heat utilization rate.

[0031] The outlet of the hydrogen release bottle 13 is connected to the fuel cell, providing hydrogen to the fuel cell for power generation.

[0032] The inlet of the hydrogen absorption bottle 16 is connected to a hydrogen storage tank, which can replenish hydrogen into the hydrogen absorption bottle 16.

[0033] Both the hydrogen release bottle 13 and the hydrogen absorption bottle 16 are equipped with pressure sensors, which are connected to the controller. The pressure sensor in the hydrogen release bottle 13 can detect the hydrogen pressure inside the hydrogen release bottle 13. When the pressure is lower than the set value, it proves that the hydrogen in the hydrogen release bottle 13 has been released completely. At this time, the pressure sensor will send a signal to the controller to remind that a new hydrogen release bottle 13 needs to be replaced. Similarly, the pressure sensor in the hydrogen absorption bottle 16 can detect the hydrogen pressure inside the hydrogen absorption bottle 16. When the pressure is higher than the set value, it proves that the hydrogen in the hydrogen absorption bottle 16 has been absorbed completely. At this time, the pressure sensor will send a signal to the controller to remind that a new hydrogen absorption bottle 16 needs to be replaced.

[0034] The ionic compounds include, but are not limited to, lithium bromide.

[0035] Working principle:

[0036] Solar energy or industrial waste heat is used to heat generator 1. Water and ionic compounds within generator 1 separate to form a concentrated ionic compound solution 2. The water then turns into water vapor and enters condenser 3. Condenser 3 exchanges heat with heat exchanger A10, heating the circulating water in heat exchanger A10 before it flows to heating coil 17 in heater 12. Heater 12 contains a hydrogen release bottle 13, which has a built-in hydrogen storage alloy. Heating the hydrogen release bottle 13 with heating coil 17 releases hydrogen gas, achieving hydrogen compression and release. Water circulates within heating coil 17 and then returns to cooling tower 11 for reuse via pipeline. The liquid water produced after passing through condenser 3 can then enter evaporator 5 via pipeline and throttle valve A4 using the height difference. The water boils and evaporates in evaporator 5, turning into water vapor. Evaporator 5 exchanges heat with heat exchanger B14 for refrigeration. The circulating water in heat exchanger B14 is cooled and then flows to the cooling coil 18 of cooler 15. Cooler 15 is equipped with a hydrogen absorption bottle 16, which contains a hydrogen storage alloy. After the cooling coil 18 cools the hydrogen absorption bottle 16, it can absorb hydrogen, thus replenishing the hydrogen. The water circulates in the cooling coil 18 and then enters the cooling tower 11 through the pipeline, and then returns to the inlet of heat exchanger B14 for recycling. The water vapor generated by evaporator 5 enters absorber 6. Utilizing the strong water absorption of ionic compounds, water vapor and ionic compounds fuse in absorber 6 to form a dilute ionic compound solution 7. The dilute ionic compound solution 7 is pumped into generator 1 by solution pump 8 for further evaporation and concentration. The concentrated ionic compound solution 2 in generator 1 can be returned to absorber 6 through the pipeline and throttle valve B9 using the height difference, and enter the next cycle.

[0037] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0038] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A metal hydride compressor system utilizing ionic compounds for cooling and heating, characterized in that: The device includes a generator containing a concentrated solution of an ionic compound. The top outlet of the generator is connected to the inlet of a condenser via a pipeline. The outlet of the condenser is connected to the inlet of an evaporator via a pipeline and a throttle valve A. The outlet of the evaporator is connected to the inlet of an absorber via a pipeline. The absorber contains a dilute solution of an ionic compound. The outlet of the absorber is connected to the inlet of the generator via a pipeline and a solution pump. The bottom outlet of the generator is connected to the absorber via a pipeline and a throttle valve B. The condenser exchanges heat with heat exchanger A. Heat exchanger A is connected to the cooling tower via a circulation pipeline. The outlet of heat exchanger A is connected to the heater via a pipeline. The heater is equipped with a hydrogen release bottle with a built-in hydrogen storage alloy. The heater is used to heat the hydrogen release bottle to release hydrogen. The evaporator exchanges heat with heat exchanger B, which is connected to a cooling tower via a circulation pipeline. The outlet of heat exchanger B is connected to a cooler via a pipeline. The cooler is equipped with a hydrogen absorption bottle containing a hydrogen storage alloy. The cooler is used to cool the hydrogen absorption bottle to absorb hydrogen.

2. The metal hydride compressor system using ionic compounds for cooling and heating according to claim 1, characterized in that: The heater is equipped with a heating coil. The inlet of the heating coil is connected to the outlet of heat exchanger A through a pipeline, and the outlet of the heating coil is connected to the cooling tower through a pipeline.

3. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: The cooler is equipped with a cooling coil. The inlet of the cooling coil is connected to the outlet of heat exchanger B through a pipeline, and the outlet of the cooling coil is connected to the cooling tower through a pipeline.

4. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: The generator uses solar energy or industrial waste heat for heating.

5. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: The inlet of heat exchanger B is connected to a low-temperature water source, either tap water or well water.

6. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: A heat exchanger is installed between the pipeline containing the throttle valve B and the pipeline containing the solution pump.

7. A metal hydride compressor system for cooling and heating using ionic compounds according to claim 1, characterized in that: The outlet of the hydrogen release cylinder is connected to the fuel cell.

8. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: The inlet of the hydrogen absorption bottle is connected to the hydrogen storage tank.

9. A metal hydride compressor system utilizing ionic compounds for cooling and heating according to claim 1, characterized in that: Pressure sensors are installed on both the hydrogen release bottle and the hydrogen absorption bottle.

10. A metal hydride compressor system for cooling and heating using ionic compounds according to claim 1, characterized in that: The ionic compound includes lithium bromide.

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