Metal hydride compressor system for cooling and heating with air conditioning
By combining an air conditioning system with a metal hydride compressor, and utilizing the gas heat and cold energy of the condenser and evaporator, the problem of separate heating and cooling of hydrogen storage cylinders is solved, achieving efficient energy utilization and continuous release and replenishment of hydrogen. This is suitable for small-scale home power generation and fuel cell vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI DONGDE IND CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-12
AI Technical Summary
Existing metal hydride compressors require separate heating and cooling devices, resulting in high energy consumption. Furthermore, the heat and cold sources of the air conditioning system are not effectively utilized, leading to energy waste and environmental pollution.
By combining an air conditioning system with a metal hydride compressor, the high-temperature gas discharged from the condenser heats the hydrogen release bottle to release hydrogen, and the low-temperature gas discharged from the evaporator cools the hydrogen absorption bottle to absorb hydrogen, thus achieving the recycling of thermal and cold energy.
It reduces energy consumption, avoids thermal pollution, and enables continuous release and replenishment of hydrogen, making it suitable for small-scale home power generation or fuel cell vehicles.
Smart Images

Figure CN224353312U_ABST
Abstract
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 air conditioning for cooling and heating. Background technology:
[0002] Currently, in metal hydride compressors, hydrogen is typically stored in hydrogen storage tanks using a built-in 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. 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. Furthermore, in home or automotive air conditioning systems, condensers directly release hot air (70°C–90°C) into the atmosphere, wasting energy and exacerbating the urban heat island effect with high-density use. Evaporators, on the other hand, can release low-temperature gases (<25°C). Combining these heat and cold sources with hydrogen storage tanks would save substantial energy. However, there is currently no satisfactory solution to these 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 the prior art, this utility model provides a metal hydride compressor system that uses air conditioning for cooling and heating, solving the problem that the previous hydrogen storage cylinders required separate heating and cooling devices, resulting in additional energy consumption.
[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 air conditioning for cooling and heating includes an air conditioning system comprising a compressor, a condenser, an expansion valve, and an evaporator. The condenser is connected to a heater via a pipeline. The heater contains a hydrogen release bottle with a built-in hydrogen storage alloy. The heater is used to heat the hydrogen release bottle with the high-temperature gas discharged from the condenser to release hydrogen, and then cool the high-temperature gas before discharging it to the outside. The evaporator is connected to a cooler via a pipeline. The cooler contains a hydrogen absorption bottle with a built-in hydrogen storage alloy. The cooler is used to cool the hydrogen absorption bottle with a portion of the low-temperature gas discharged from the evaporator to absorb hydrogen.
[0007] The heater is equipped with a heating coil, the air inlet of which is connected to the condenser, and the air outlet of which is open to the outside.
[0008] The cooler is equipped with a cooling coil, the air inlet of which is connected to the evaporator, and the air outlet of which is open to the outside.
[0009] The outlet of the hydrogen release cylinder is connected to the fuel cell.
[0010] The inlet of the hydrogen absorption bottle is connected to the hydrogen storage tank.
[0011] Pressure sensors are installed on both the hydrogen release bottle and the hydrogen absorption bottle.
[0012] The present invention adopts the above solution and has the following advantages:
[0013] By combining an air conditioning system with a metal hydride compressor, and connecting the condenser to a heater via piping, the system utilizes the high-temperature gas discharged from the condenser to heat the hydrogen release bottle and release hydrogen, fully leveraging thermal energy and achieving hydrogen compression and release. Furthermore, the high-temperature gas is cooled before being released into the atmosphere, avoiding thermal pollution. The evaporator is connected to a cooler via piping, and the cooler contains a hydrogen absorption bottle. A portion of the low-temperature gas discharged from the evaporator cools the absorption bottle to absorb hydrogen, thus replenishing the hydrogen supply. Once the hydrogen release bottle has released all the hydrogen and the absorption bottle has absorbed all the hydrogen, the two bottles can be interchanged for alternating use. The hydrogen release bottle can be connected to a fuel cell to supply hydrogen for power generation, making it suitable for small-scale home power generation or fuel cell vehicles. Attached image description:
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] In the diagram, 1. Compressor, 2. Condenser, 3. Expansion valve, 4. Evaporator, 5. Heater, 6. Hydrogen release tank, 7. Cooler, 8. Hydrogen absorption tank, 9. Heating coil, 10. Cooling coil, 11. Fuel cell, 12. Hydrogen storage tank. Detailed implementation method:
[0016] 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.
[0017] like Figure 1As shown, a metal hydride compressor system utilizing air conditioning for cooling and heating includes an air conditioning system comprising a compressor 1, a condenser 2, an expansion valve 3, and an evaporator 4. The condenser 2 is connected to a heater 5 via a pipeline. The heater 5 contains a hydrogen release bottle 6, which contains a hydrogen storage alloy. The heater 5 is used to heat the hydrogen release bottle 6 with the high-temperature gas discharged from the condenser 2 to release hydrogen, and then cool the high-temperature gas before discharging it to the outside. The evaporator 4 is connected to a cooler 7 via a pipeline. The cooler 7 contains a hydrogen absorption bottle 8, which contains a hydrogen storage alloy. The cooler 7 is used to cool the hydrogen absorption bottle 8 with a portion of the low-temperature gas discharged from the evaporator 4 to absorb hydrogen.
[0018] The heater 5 is equipped with a heating coil 9. The inlet of the heating coil 9 is connected to the condenser 2, and the outlet of the heating coil 9 is open to the outside. After the high-temperature gas discharged from the condenser 2 enters the heating coil 9, the heating efficiency can be improved, and the hydrogen release bottle 6 can be fully heated to achieve continuous hydrogen release.
[0019] The cooler 7 is equipped with a cooling coil 10. The air inlet of the cooling coil 10 is connected to the evaporator 4, and the air outlet of the cooling coil 10 is open to the outside. After some of the low-temperature gas discharged from the evaporator 4 enters the cooling coil 10, the cooling efficiency can be improved, and the hydrogen absorption bottle 8 can be fully cooled to achieve continuous hydrogen absorption.
[0020] The outlet of the hydrogen release bottle 6 is connected to the fuel cell 11, providing hydrogen to the fuel cell 11 for power generation.
[0021] The inlet of the hydrogen absorption bottle 8 is connected to the hydrogen storage tank 12, which can replenish hydrogen into the hydrogen absorption bottle 8.
[0022] Both the hydrogen release bottle 6 and the hydrogen absorption bottle 8 are equipped with pressure sensors, which are connected to the controller. The pressure sensor in the hydrogen release bottle 6 can detect the hydrogen pressure inside the hydrogen release bottle 6. When the pressure is lower than the set value, it indicates that the hydrogen in the hydrogen release bottle 6 has been completely released. At this time, the pressure sensor will send a signal to the controller to remind that a new hydrogen release bottle 6 needs to be replaced. Similarly, the pressure sensor in the hydrogen absorption bottle 8 can detect the hydrogen pressure inside the hydrogen absorption bottle 8. When the pressure is higher than the set value, it indicates that the hydrogen in the hydrogen absorption bottle 8 has been completely absorbed. At this time, the pressure sensor will send a signal to the controller to remind that a new hydrogen absorption bottle 8 needs to be replaced.
[0023] Working principle:
[0024] During operation, the condenser 2 generates high-temperature gas at 70℃~90℃. This high-temperature gas enters the heating coil 9 of the heater 5 through pipes, which can fully heat the hydrogen release tank 6 inside the heater 5 to achieve continuous hydrogen release. At the same time, the high-temperature gas can be cooled before being discharged into the outside atmosphere, avoiding thermal pollution. The evaporator 4 can discharge low-temperature gas at <25℃, mainly used for indoor or vehicle cooling. Some of the low-temperature gas enters the cooling coil 10 inside the cooler 7 through pipes, which can fully cool the hydrogen absorption tank 8 inside the cooler 7 to achieve continuous hydrogen absorption. The hydrogen released from the hydrogen release tank 6 can enter the fuel cell 11 to generate electricity, which can be applied to small-scale home power generation equipment or fuel cell vehicles.
[0025] 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.
[0026] 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 air conditioning for cooling and heating, comprising an air conditioning system, said air conditioning system including a compressor, a condenser, an expansion valve, and an evaporator, characterized in that: The condenser is connected to the heater via a pipeline. The heater contains a hydrogen release bottle with a built-in hydrogen storage alloy. The heater is used to heat the hydrogen release bottle with the high-temperature gas discharged from the condenser to release hydrogen, and then cool the high-temperature gas before discharging it to the outside. The evaporator is connected to the cooler via a pipeline. The cooler contains a hydrogen absorption bottle with a built-in hydrogen storage alloy. The cooler is used to cool the hydrogen absorption bottle with a portion of the low-temperature gas discharged from the evaporator to absorb hydrogen.
2. The metal hydride compressor system for cooling and heating using air conditioning according to claim 1, characterized in that: The heater is equipped with a heating coil, the air inlet of which is connected to the condenser, and the air outlet of which is open to the outside.
3. A metal hydride compressor system for cooling and heating using air conditioning according to claim 1, characterized in that: The cooler is equipped with a cooling coil, the air inlet of which is connected to the evaporator, and the air outlet of which is open to the outside.
4. A metal hydride compressor system for cooling and heating using air conditioning according to claim 1, characterized in that: The outlet of the hydrogen release cylinder is connected to the fuel cell.
5. A metal hydride compressor system for cooling and heating using air conditioning according to claim 1, characterized in that: The inlet of the hydrogen absorption bottle is connected to the hydrogen storage tank.
6. A metal hydride compressor system for cooling and heating using air conditioning according to claim 1, characterized in that: Pressure sensors are installed on both the hydrogen release bottle and the hydrogen absorption bottle.