CN217933884U - Hydrogen fuel cell gas supply system and power device thereof - Google Patents
Hydrogen fuel cell gas supply system and power device thereof Download PDFInfo
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- CN217933884U CN217933884U CN202221602890.XU CN202221602890U CN217933884U CN 217933884 U CN217933884 U CN 217933884U CN 202221602890 U CN202221602890 U CN 202221602890U CN 217933884 U CN217933884 U CN 217933884U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a hydrogen fuel cell air supply system and power device thereof, including air cleaner, screw air compressor, deionizer, the hydrogen system, hydrogen fuel cell, the diluter, the muffler, gas valve system and water tank, the utility model discloses remove the structure of liquid circulating water pump and fan, adopt lubricated screw air compressor of water to replace structural function such as water pump, the humidifier has been got rid of, because lubricated screw air compressor of water adopts circulating water lubrication, contain the saturated water of temperature now in the compressed air who produces, the existing humidity of air supply among the hydrogen fuel cell like this, and contain no moisture again, increase the effect that plays maximum to proton exchange membrane's humidification, furthest ensures proton exchange membrane's high-efficient conversion, improve hydrogen fuel cell's conversion rate, also can reduce entire system's volume, in addition because the compressed air temperature that screw air compressor produced can adjust, and the temperature is lower, so no longer need the intercooler structure, the structure has been retrencied.
Description
Technical Field
The utility model relates to a hydrogen fuel cell technical field specifically is a hydrogen fuel cell gas supply system and power device thereof.
Background
The fuel cell is a power generation device using hydrogen and air as carriers, has the advantages of high power generation efficiency, high power density, short dynamic response time, low reaction temperature, cleanness, environmental protection and the like, and has wide development prospect in the fields of traffic and energy sources, wherein the hydrogen fuel cell uses hydrogen as fuel and generates electric energy by permeating a proton exchange membrane after electrochemical reaction with oxygen. Therefore, in order to realize power generation of the hydrogen fuel cell, hydrogen and oxygen need to be provided, that is, a hydrogen supply pipeline system and an oxygen supply pipeline system are needed, the oxygen supply pipeline system of the hydrogen fuel cell stack is usually replaced by a gas (air) supply pipeline system at present,
as shown in fig. 2, in the prior art, a fan is used to extract external air, and the proton exchange membrane inside the hydrogen fuel cell can maintain its activity to the maximum extent due to a certain humidity, so that the proton exchange membrane needs to be kept wet during operation, in the prior art, a liquid circulation water pump is usually used to circulate saturated water generated by the hydrogen fuel cell to wet the proton exchange membrane, the wetting effect and efficiency are poor, the saturated water and the air extracted by the fan from the outside are mixed and then delivered to the hydrogen fuel cell, because the compressed air generated by the fan has a high temperature and needs to be cooled, an intercooler is further needed to be added, the volume of the whole system is large, the cost is high, and the noise of the whole system is large due to the adoption of complex structures of the liquid circulation water pump, the fan and the intercooler, etc., the efficiency is low during the whole operation, and the air temperature and humidity can not be adjusted according to requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydrogen fuel cell gas supply system and power device thereof to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a hydrogen fuel cell air supply system comprising an air filter, a screw air compressor lubricated with water, a deionizer, a hydrogen system, a hydrogen fuel cell and a diluter, wherein:
the air inlet of the screw air compressor is provided with an air filter, the air outlet is connected with the air inlet of the hydrogen fuel cell, the liquid spraying port and the water outlet of the screw air compressor are connected with a deionizer, the deionizer is further connected with the hydrogen fuel cell and used for collecting water generated by the hydrogen fuel cell and lubricating the screw air compressor, the air outlet of the hydrogen fuel cell is connected with a diluter, and a hydrogen system is connected with the hydrogen fuel cell and used for providing hydrogen fuel for the operation of the hydrogen fuel cell.
Preferably, the screw air compressor is a single screw air compressor.
Preferably, a drain valve for draining water is arranged on a pipeline between the water outlet of the screw air compressor and the water inlet of the deionizer, the water outlet of the hydrogen fuel cell is connected with the liquid spraying port of the screw air compressor through the pipeline, and a radiator is arranged on the connected pipeline.
Preferably, a water tank is further arranged on a connecting pipeline between the water outlet of the hydrogen fuel cell and the liquid spraying port of the screw air compressor, saturated water is stored in the water tank, and a drain valve used for discharging redundant saturated water is further mounted on the water tank.
Preferably, the hydrogen system includes hydrogen storage bottle, air inlet valve, spouts hydrogen ware, hydrogen pump and purge valve, the gas vent of hydrogen storage bottle is connected through pipeline and hydrogen fuel cell's air inlet, and has set gradually air inlet valve and spout hydrogen ware on this pipeline, the purge valve adopts the tee bend valve body structure that sweeps that has entry, gas outlet and liquid outlet, the entry and the hydrogen fuel cell's of purge valve air inlet are connected, the liquid outlet of purge valve is connected with the discharge port of diluter, the gas outlet of purge valve is connected through pipeline and hydrogen fuel cell's air inlet, and is provided with the hydrogen pump on this pipeline.
Preferably, the hydrogen system further comprises a safety valve, and at least one safety valve is arranged on a pipeline between the vent of the hydrogen storage bottle and the gas inlet of the hydrogen fuel cell.
Preferably, a gas valve system is arranged on the gas inlet and the gas outlet of the hydrogen fuel cell, the gas valve system comprises a gas inlet valve, a gas outlet valve and a communicating valve, a gas inlet valve is arranged on a connecting pipeline between the air compressor and the hydrogen fuel cell, a gas outlet valve is arranged on a connecting pipeline between the hydrogen fuel cell and the diluter, and the two pipelines are connected through the communicating valve.
Preferably, a silencer is further disposed on the discharge port of the diluter.
The utility model discloses still provide a hydrogen fuel cell power device in addition, wherein, power device includes battery gas supply system, voltage amplifier, dc-to-ac converter and motor, battery gas supply system adopts foretell hydrogen fuel cell gas supply system, hydrogen fuel cell gas supply system's hydrogen fuel cell's load end electric connection voltage amplifier's input, voltage amplifier's output electric connection dc-to-ac converter, dc-to-ac converter electric connection motor, the driving motor pivot is rotated.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the structure of liquid circulation water pump and fan has been got rid of, adopt lubricated screw air compressor of water to replace structure functions such as water pump, therefore it is low to have the noise, small in size, high in speed, high efficiency, air temperature and humidity can be adjusted etc. advantages, the humidifier has been got rid of, because lubricated screw air compressor of water adopts circulating water lubrication, contain the saturated water of temperature at present in the compressed air who produces, the existing humidity of air supply in the hydrogen fuel cell like this, and contain no moisture, increase the effect that plays maximum degree to proton exchange membrane's humidification, maximum guarantee proton exchange membrane's high-efficient conversion, improve hydrogen fuel cell's conversion rate, also can reduce entire system's volume, and therefore the cost is reduced, in addition because the compressed air temperature that screw air compressor produced can adjust, and the intercooler temperature is lower, so no longer need the structure, the structure has been simplified, and the water that hydrogen fuel cell produced gets into single screw air compressor, lubricate it, cycle use, high efficiency and energy conservation, can adjust single screw compressor rotational speed through humidity in addition, thereby adjust gas pressure, gas temperature and demand according to the demand of fuel cell, satisfy fuel cell.
Drawings
FIG. 1 is a schematic diagram of the overall system structure of the present invention;
fig. 2 is a schematic structural diagram of a gas supply system in the prior art.
In the figure: 1 air filter, 2 screw air compressor, 3 deionizer, 4 hydrogen system, 401 hydrogen storage bottle, 402 air inlet valve, 403 hydrogen sprayer, 404 hydrogen pump, 405 purging valve, 406 safety valve, 5 hydrogen fuel cell, 6 diluter, 7 silencer, 8 gas valve system, 801 air inlet valve, 802 exhaust valve, 803 communicating valve, 9 water tank, 10 radiator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution:
a hydrogen fuel cell air supply system comprising an air filter 1, a screw air compressor 2 lubricated with water, a deionizer 3, a hydrogen system 4, a hydrogen fuel cell 5 and a diluter 6, wherein:
the screw air compressor 2 adopts a single-screw air compressor, the air filter 1 is installed at the air inlet of the screw air compressor 2, the air filter 1 achieves the air filtering effect, the air inlet of the screw air compressor 2 can be further provided with an air flow meter according to the requirement, the air flow of the air can be conveniently detected, the rotating speed of the screw air compressor 2 can be adjusted, the pressure of the air can be adjusted freely according to the requirement, the requirement of the hydrogen fuel cell 5 is met, the liquid spraying port and the water outlet of the screw air compressor 2 are connected with the deionizer 3, the deionizer 3 is further connected with the hydrogen fuel cell 5 and is used for collecting the water generated by the hydrogen fuel cell 5 and lubricating the screw air compressor 2.
The water outlet of the screw air compressor 2 is communicated with the water inlet of the hydrogen fuel cell 5 through a pipeline, the pipeline is provided with a deionizer 3, the water outlet of the hydrogen fuel cell 5 is connected with the liquid spraying port of the screw air compressor 2 through a pipeline, the connected pipeline is provided with a radiator 10, the radiator 10 plays a role in cooling saturated water generated by the hydrogen fuel cell 5, meanwhile, the radiator 10 can adjust the temperature of the inlet water so as to adjust the temperature of gas entering the hydrogen fuel cell 5, the humidity and the temperature are matched according to the saturated water contained in the current temperature condition of the screw air compressor 2, so that the temperature can be controlled, the humidity of the inlet gas of the hydrogen fuel cell 5 can be adjusted according to requirements, and the deionizer 3 mainly plays a role in adsorbing anions and cations released by the hydrogen fuel cell 5 and relevant parts of a water channel, so that the conductivity in the water channel is maintained at a low value, and the system is prevented from electric leakage.
And a drainage valve for draining water is arranged on a pipeline between the water outlet of the screw air compressor 2 and the water inlet of the deionizer 3, the drainage valve is used for draining redundant circulating water in a water circulating system between the screw air compressor and the deionizer, and the water outlet of the hydrogen fuel cell 5 is connected with a liquid spraying port of the screw air compressor 2 through a pipeline.
A water tank 9 is arranged on a connecting pipeline between a water outlet of the hydrogen fuel cell 5 and a liquid spraying port of the screw air compressor 2, saturated water is stored in the water tank 9, the screw air compressor 2 needs to be lubricated under the condition that water is not generated when the hydrogen fuel cell 5 is just started, water is sucked from the water tank 9 for lubrication at the moment, and a drain valve used for discharging redundant saturated water is further installed on the water tank 9 and used for discharging redundant water in the water tank 9.
The air outlet of the screw air compressor 2 is connected with the air inlet of the hydrogen fuel cell 5, the screw air compressor 2 is in operation, the air inlet extracts the air filtered by the air filter 1 and conveys the air into the hydrogen fuel cell 5, the screw air compressor 2 starts to operate, the water is sucked from the water tank 9 for lubrication, the water generated along with the continuous operation of the hydrogen fuel cell 5 is conveyed into the water tank 9 for storage, the redundant water in the water tank 9 is discharged through a drain valve on the water tank 9, the water entering the screw air compressor 2 can be subjected to heat dissipation and cooling treatment through the radiator 10, and the water lubricated in the screw air compressor 2 flows into the water circulation system of the hydrogen fuel cell 5 again after passing through the deionizer 3.
Because the present embodiment has removed the structure of the liquid circulating water pump and blower, adopt the lubricated screw air compressor 2 of water to replace structural function such as the water pump, therefore have the noise low, small, the rotational speed is high, high efficiency, air temperature and humidity can be adjusted, etc., have removed the humidifier, because the lubricated screw air compressor 2 of water adopts the circulating water lubrication, contain the saturated water of the present temperature in the compressed air produced, the air supply in the hydrogen fuel cell 5 has humidity now, does not contain moisture, the humidification synergy to the proton exchange membrane plays the greatest extent effects, the high-efficient conversion of the maximum guarantee proton exchange membrane, raise the conversion rate of the hydrogen fuel cell 5, can reduce the volume of the whole system too, lower costs, in addition because the compressed air temperature that the screw air compressor 2 produces can be adjusted, and the temperature is lower, so no longer need intercooler structure, simplify the structure, and the water produced by the hydrogen fuel cell 5 enters the single screw air compressor, lubricate it, recycle, it is high-efficient and energy-saving.
The gas outlet of the hydrogen fuel cell 5 is connected with the diluter 6, a gas valve system 8 is arranged on the gas inlet and the gas outlet of the hydrogen fuel cell 5, the gas valve system 8 comprises a gas inlet valve 801, a gas outlet valve 802 and a communicating valve 903, the gas inlet valve 801 is arranged on the connecting pipeline between the air compressor 2 and the hydrogen fuel cell 5, the gas outlet valve 802 is arranged on the connecting pipeline between the hydrogen fuel cell 5 and the diluter 6, the two pipelines are connected through the communicating valve 803, the gas inlet valve 801 and the gas outlet valve 802 are used for controlling the gas inlet rate and the gas outlet rate of the hydrogen fuel cell 5, and the communicating valve 803 plays a role in balancing the gas inlet pressure and the gas outlet pressure.
The hydrogen system 4 is connected with the hydrogen fuel cell 5 and used for providing hydrogen fuel for the work of the hydrogen fuel cell 5, the hydrogen system 4 comprises a hydrogen storage bottle 401, an air inlet valve 402, a hydrogen sprayer 403, a hydrogen pump 404 and a purging valve 405, an air outlet of the hydrogen storage bottle 401 is connected with an air inlet of the hydrogen fuel cell 5 through a pipeline, the pipeline is sequentially provided with the air inlet valve 402 and the hydrogen sprayer 403, the hydrogen storage bottle 401 is used for storing the hydrogen fuel, the hydrogen fuel enters the hydrogen fuel cell 5 after passing through the air inlet valve 402 and the hydrogen sprayer 403 in sequence from the hydrogen storage bottle 401, the purging valve 405 adopts a three-way purging valve body structure with an inlet, a gas outlet and a liquid outlet, the inlet of the purge valve 405 is connected with the gas inlet of the hydrogen fuel cell 5, the liquid outlet of the purge valve 405 is connected with the exhaust of the diluter 6, the gas outlet of the purge valve 405 is connected with the gas inlet of the hydrogen fuel cell 5 through a pipeline, and a hydrogen pump 404 is arranged on the pipeline, the purge valve 405 can be opened and closed periodically to discharge part of hydrogen, water and the like in a hydrogen loop discharged by the hydrogen fuel cell 5 periodically, wherein the discharged hydrogen periodically re-enters the hydrogen fuel cell 5 through the hydrogen pump 404, and water is discharged to the outside periodically through the diluter 6, so that continuous accumulation of hydrogen and water in the loop is prevented.
The hydrogen system 4 further comprises a safety valve 406, at least one safety valve 406 is arranged on a pipeline between the exhaust port of the hydrogen storage bottle 401 and the air inlet of the hydrogen fuel cell 5 to prevent the gas pressure led to the hydrogen fuel cell 5 from being too high, a silencer 7 is further arranged on the exhaust port of the diluter 6, and the silencer 7 reduces the sound during the exhaust.
The utility model discloses still provide a hydrogen fuel cell power device in addition, wherein, power device includes battery gas supply system, voltage amplifier, dc-to-ac converter and motor, battery gas supply system adopts foretell hydrogen fuel cell gas supply system, hydrogen fuel cell 5's of hydrogen fuel cell gas supply system load end electric connection voltage amplifier's input, voltage amplifier's output electric connection dc-to-ac converter, dc-to-ac converter electric connection motor, the driving motor pivot is rotated.
The utility model discloses an application principle:
when the device is used, the screw air compressor 2 extracts air filtered by the air filter 1 through the air inlet and sends the air to the hydrogen fuel cell 5, when the screw air compressor 2 starts to work, water is sucked from the water tank 9 for lubrication, water generated along with the continuous work of the hydrogen fuel cell 5 is conveyed into the water tank 9 for storage, redundant water in the water tank 9 is discharged through a drain valve on the water tank 9, the water entering the screw air compressor 2 can be subjected to heat dissipation and temperature reduction treatment through the radiator 10, the water lubricated in the screw air compressor 2 flows into a water circulation system of the hydrogen fuel cell 5 again after passing through the deionizer 3, the compressed air generated by the water-lubricated screw air compressor 2 contains saturated water at the current temperature, and the mixed compressed air is conveyed to the hydrogen fuel cell 5 by the screw air compressor 2;
hydrogen fuel enters the hydrogen fuel cell 5 after passing through the air inlet valve 402 and the hydrogen sprayer 403 in sequence from the hydrogen storage bottle 401, the hydrogen fuel cell 5 uses mixed air and hydrogen to do work, redundant hydrogen and water are discharged, the purge valve 405 is opened and closed periodically, the discharged hydrogen enters the hydrogen fuel cell 5 again through the hydrogen pump 404 periodically, and water is discharged to the outside periodically through the diluter 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a hydrogen fuel cell air supply system, includes air cleaner (1), adopts water lubricated screw air compressor (2), deionizer (3), hydrogen system (4), hydrogen fuel cell (5) and diluter (6), its characterized in that:
an air filter (1) is installed at an air inlet of the screw air compressor (2), an air outlet is connected with an air inlet of the hydrogen fuel cell (5), a liquid spraying port and a water outlet of the screw air compressor (2) are connected with a deionizer (3), the deionizer (3) is further connected with the hydrogen fuel cell (5) and used for collecting water generated by the hydrogen fuel cell (5) and lubricating the screw air compressor (2), an air outlet of the hydrogen fuel cell (5) is connected with a diluter (6), and a hydrogen system (4) is connected with the hydrogen fuel cell (5) and used for providing hydrogen fuel for the work of the hydrogen fuel cell (5).
2. A hydrogen fuel cell gas supply system according to claim 1, characterized in that: the screw air compressor (2) adopts a single-screw air compressor.
3. A hydrogen fuel cell gas supply system according to claim 1, characterized in that: a drain valve for draining water is arranged on a pipeline between the water outlet of the screw air compressor (2) and the water inlet of the deionizer (3), the water outlet of the hydrogen fuel cell (5) is connected with the liquid spraying port of the screw air compressor (2) through a pipeline, and a radiator (10) is arranged on the connected pipeline.
4. A hydrogen fuel cell gas supply system according to claim 3, characterized in that: a water tank (9) is further arranged on a connecting pipeline between a water outlet of the hydrogen fuel cell (5) and a liquid spraying port of the screw air compressor (2), saturated water is stored in the water tank (9), and a water drain valve used for draining redundant saturated water is further mounted on the water tank (9).
5. A hydrogen fuel cell gas supply system according to claim 1, characterized in that: the hydrogen system (4) comprises a hydrogen storage bottle (401), an air inlet valve (402), a hydrogen sprayer (403), a hydrogen pump (404) and a purging valve (405), wherein an air outlet of the hydrogen storage bottle (401) is connected with an air inlet of the hydrogen fuel cell (5) through a pipeline, the pipeline is sequentially provided with the air inlet valve (402) and the hydrogen sprayer (403), the purging valve (405) adopts a three-way purging valve body structure with an inlet, a gas outlet and a liquid outlet, the inlet of the purging valve (405) is connected with the air inlet of the hydrogen fuel cell (5), the liquid outlet of the purging valve (405) is connected with an exhaust outlet of the diluter (6), the gas outlet of the purging valve (405) is connected with the air inlet of the hydrogen fuel cell (5) through a pipeline, and the pipeline is provided with the hydrogen pump (404).
6. A hydrogen fuel cell gas supply system according to claim 5, characterized in that: the hydrogen system (4) also comprises a safety valve (406), and at least one safety valve (406) is arranged on a pipeline between the exhaust port of the hydrogen storage bottle (401) and the air inlet of the hydrogen fuel cell (5).
7. A hydrogen fuel cell gas supply system according to claim 1, characterized in that: be provided with gas valve system (8) on hydrogen fuel cell's (5) air inlet and the gas outlet, gas valve system (8) are including admission valve (801), discharge valve (802) and intercommunication valve (803), be provided with admission valve (801) on the connecting pipeline between air compressor (2) and hydrogen fuel cell (5), be provided with discharge valve (802) on the connecting pipeline between hydrogen fuel cell (5) and diluter (6), be connected through intercommunication valve (803) between the above-mentioned two pipelines.
8. A hydrogen fuel cell gas supply system according to claim 1, characterized in that: and a silencer (7) is also arranged on the discharge port of the diluter (6).
9. A hydrogen fuel cell power plant characterized by: the power device comprises a battery gas supply system, a voltage amplifier, an inverter and a motor, wherein the battery gas supply system is used for supplying the hydrogen fuel cell according to any one of claims 1 to 8, the load end of the hydrogen fuel cell (5) of the hydrogen fuel cell gas supply system is electrically connected with the input end of the voltage amplifier, the output end of the voltage amplifier is electrically connected with the inverter, and the inverter is electrically connected with the motor to drive the rotating shaft of the motor to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221602890.XU CN217933884U (en) | 2022-06-24 | 2022-06-24 | Hydrogen fuel cell gas supply system and power device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221602890.XU CN217933884U (en) | 2022-06-24 | 2022-06-24 | Hydrogen fuel cell gas supply system and power device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN217933884U true CN217933884U (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221602890.XU Active CN217933884U (en) | 2022-06-24 | 2022-06-24 | Hydrogen fuel cell gas supply system and power device thereof |
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| CN (1) | CN217933884U (en) |
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2022
- 2022-06-24 CN CN202221602890.XU patent/CN217933884U/en active Active
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