CN211743312U - Recycling and circulating system for cold start waste heat of fuel cell - Google Patents
Recycling and circulating system for cold start waste heat of fuel cell Download PDFInfo
- Publication number
- CN211743312U CN211743312U CN202021823224.XU CN202021823224U CN211743312U CN 211743312 U CN211743312 U CN 211743312U CN 202021823224 U CN202021823224 U CN 202021823224U CN 211743312 U CN211743312 U CN 211743312U
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- cold start
- waste heat
- temperature sensor
- pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a fuel cell cold start waste heat recycling circulating system, which comprises an air supply system, a hydrogen supply system, a main heat dissipation system, an auxiliary heat dissipation system, a galvanic pile and a waste heat recycling circulating system; the cold start waste heat recycling system is added on the original fuel cell system, when the system is in a low-temperature environment, the cooling liquid is heated by utilizing the heat generated by the air compressor, and the PTC water heater is arranged on a water path at the front end of the waste heat recycling system, which is fed into the galvanic pile, so that the purpose of carrying out double heating on the cooling liquid in the cold start process to ensure the cold start performance of the galvanic pile is achieved; and after the electric pile is warmed up, changing the flow direction of the cooling liquid by using the electromagnetic two-way valve, so that the normal modes of the main heat dissipation system and the auxiliary heat dissipation system are recovered. The utility model discloses can rationally utilize the used heat that the air compressor machine produced to combine PTC water heater can improve the cold start performance under the pile low temperature environment effectively.
Description
Technical Field
The utility model belongs to the fuel cell field provides a fuel cell cold start used heat recycling system for satisfying fuel cell cold start performance under low temperature environment.
Background
The fuel cell system consists of an air supply system, a hydrogen supply system, a main heat dissipation system, an auxiliary heat dissipation system and an electric pile. The existing fuel cell system can basically meet the performance requirements when cold started at normal temperature; however, in some low-temperature environments, accumulated water is easy to remain in the galvanic pile after the previous operation, so that the galvanic pile is easy to freeze in the environment below zero, and when the galvanic pile is in cold start, the contact area between hydrogen and oxygen and the proton exchange membrane is reduced, so that the electrochemical reaction is not sufficient, the working performance of the galvanic pile is reduced, and some phenomena even cause difficulty in starting the fuel cell system.
Therefore, the prior art has problems and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: in order to improve the phenomena of difficult starting, unstable performance and the like in the cold starting process of the fuel cell system in the low-temperature environment, the fuel cell cold starting waste heat recycling circulating system which can recycle the waste heat generated by the air compressor and increase the PTC water heater to heat the cooling liquid is provided.
The technical solution of the utility model is that:
a fuel cell cold start waste heat recycling system is characterized in that: the system comprises a fuel cell air supply system, a hydrogen supply system, a main heat dissipation system, an auxiliary heat dissipation system, a waste heat recycling system and an electric pile.
The fuel cell air supply system in the fuel cell cold start waste heat recycling circulating system comprises an air filter, a first flowmeter, a first absolute pressure sensor, an air compressor air path inlet thermometer, an air compressor air path outlet thermometer, a second pressure sensor, an intercooler outlet temperature sensor and a humidifier, wherein air is conveyed to a galvanic pile for electrochemical reaction, and then gas after reaction is discharged through the humidifier, a back pressure valve and a silencer.
The fuel cell hydrogen supply system in the fuel cell cold start waste heat recycling circulating system comprises a gas storage tank, a combined pressure reducing valve, an explosion-proof electromagnetic valve, a spray rail body and a hydrogen stacking pressure sensor, wherein high-pressure hydrogen stored in the gas storage tank enters a galvanic pile for electrochemical reaction, then mixed gas of unreacted hydrogen and water vapor is discharged from a hydrogen discharge port of the galvanic pile, part of hydrogen passes through a hydrogen circulating pump through a gas-water separator and reenters the galvanic pile, and the other part of gas-water mixture is directly discharged through a water discharge and gas discharge electromagnetic valve.
The main heat dissipation system of the fuel cell in the fuel cell cold start waste heat recycling circulating system comprises a high-pressure water pump, wherein the high-pressure water pump pressurizes cooling liquid in a compensation kettle I, a main radiator I and a main radiator II, and then the cooling liquid is sent into a galvanic pile for cooling through a high-pressure water pump outlet temperature sensor, a flow meter II, a two-way electromagnetic valve four-port, a flow meter III and a galvanic pile inlet temperature sensor, and then the cooling liquid returns to the main radiator I and the main radiator II through the galvanic pile outlet temperature sensor and the two-way electromagnetic valve five-port.
The fuel cell auxiliary heat dissipation system comprises a low-pressure water pump I, a low-pressure water pump II, a low-pressure water pump III, a two-way solenoid valve I opening, an air compressor controller outlet temperature sensor, an intercooler outlet water path temperature sensor and a two-way solenoid valve III opening, wherein the low-pressure water pump I pressurizes cooling liquid in an auxiliary radiator and a compensation kettle and then conveys the cooling liquid to the air compressor, the two-way solenoid valve II opening enters the intercooler, and the two-way solenoid valve III opening returns to the auxiliary radiator for circulation.
The waste heat recycling circulating system comprises a low-pressure water pump II, wherein a cooling liquid in a compensation kettle III passes through a two-way electromagnetic valve opening, an air compressor controller outlet temperature sensor, an air compressor, a two-way electromagnetic valve opening, a PTC water heater, a two-way electromagnetic valve opening, a flow meter III, a pile inlet temperature sensor and a pile, and then the cooling liquid returns to the low-pressure water pump II through the pile outlet temperature sensor and the two-way electromagnetic valve opening to circulate.
Owing to adopted above-mentioned technical scheme, compare with prior art, the beneficial effects of the utility model:
(1) the waste heat generated by the air compressor is well utilized to heat the cooling liquid, so that the electric pile in the cold starting process is warmed up;
(2) the PTC water heater is arranged at the front end of the cooling liquid inlet and can heat the cooling liquid flowing into the galvanic pile in a low-temperature environment, so that the galvanic pile in the cold starting process is heated again;
(3) the two-way electromagnetic valve can well realize the switching of the main heat dissipation system, the auxiliary heat dissipation system and the waste heat recycling circulation system between the cold machine and the heat machine.
Drawings
Fig. 1 is a schematic diagram of the working principle of the whole module of the fuel cell system of the present invention;
FIG. 2 is a schematic diagram of a detailed working principle of FIG. 1;
FIG. 3 is a schematic diagram of the cold start fuel cell system of FIG. 2;
fig. 4 is a schematic diagram of the operation of the fuel cell system after warm-up of fig. 2.
Detailed Description
The embodiment of the utility model provides a: a fuel cell cold start waste heat recycling cycle system, as shown in fig. 1, includes a fuel cell air supply system a, a hydrogen supply system B, a primary heat dissipation system C, an auxiliary heat dissipation system D, a waste heat recycling cycle system E, and a stack F.
Referring to fig. 1 to 4, in the fuel cell air supply system a, air is supplied to the stack F through an air cleaner a1, a flowmeter a1, an absolute pressure sensor a ap1, an air compressor air inlet thermometer at1, an air compressor a2, an air compressor air outlet thermometer at2, a pressure sensor two ap2, an intercooler A3, an intercooler outlet temperature sensor at3, and a humidifier a4 to perform an electrochemical reaction, and then the reacted gas is exhausted through the humidifier a4, a back pressure valve a5, and a muffler A6.
In the fuel cell hydrogen supply system B, high-pressure hydrogen stored in a gas storage tank B1 enters a galvanic pile F through a combined pressure reducing valve B2, an explosion-proof electromagnetic valve B3, a jet rail body B4 and a hydrogen pile entering pressure sensor bp1 to carry out electrochemical reaction, then mixed gas of unreacted hydrogen and water vapor is discharged from a hydrogen discharge port of the galvanic pile F, a part of hydrogen passes through a hydrogen circulating pump B5 through a gas-water separator B6 to reenter the galvanic pile, and the other part of gas-water mixture is directly discharged through a water discharge and exhaust electromagnetic valve B7.
In the main heat dissipation system C of the fuel cell, the high-pressure water pump C1 pressurizes the cooling liquid in the compensation water tank I C4, the main heat dissipater I C2 and the main heat dissipater II C3, and then the cooling liquid is sent to the electric pile F for cooling through the high-pressure water pump outlet temperature sensor ct1, the flow meter II cf1, the two-way electromagnetic valve IV 4 port, the flow meter III ef1 and the electric pile inlet temperature sensor et3, and then the cooling liquid returns to the main heat dissipater I C2 and the main heat dissipater II C3 through the electric pile outlet temperature sensor et4 and the two-way electromagnetic valve V5 port.
In the fuel cell auxiliary heat dissipation system D, the low-pressure water pump I D1 pressurizes the cooling liquid in the auxiliary radiator D2 and the compensation kettle D3, and then the pressurized cooling liquid is conveyed to the air compressor A2 for cooling through the low-pressure water pump outlet temperature sensor dt1, the flowmeter three df1, the two-way solenoid valve I v1 port, the air compressor controller E2 and the air compressor controller outlet temperature sensor et1, then the cooled cooling liquid enters the intercooler A3 through the two-way solenoid valve II v2 port, and then the cooled cooling liquid returns to the auxiliary radiator D2 through the intercooler outlet water path temperature sensor dt2 and the two-way solenoid valve III v3 port for circulation.
In the waste heat recycling circulating system E, the low-pressure water pump II E1 sends the cooling liquid in the compensation kettle III E5 to the cell stack F through the two-way solenoid valve I v1 port, the air compressor controller E2, the air compressor controller outlet temperature sensor et1, the air compressor A2, the two-way solenoid valve II v2 port, the two-way solenoid valve III v3 port, the PTC water heater E3, the two-way solenoid valve IV 4 port, the flow meter III 1 and the cell stack inlet temperature sensor et3, and then returns to the low-pressure water pump II E1 through the cell stack outlet temperature sensor et4 and the two-way solenoid valve five v5 port for circulation.
The utility model discloses a working process does:
low-temperature cold start operation, namely, the air supply system and the hydrogen supply system work normally, the main heat dissipation system and the auxiliary heat dissipation system stop working and are switched into a waste heat recycling circulation system to work, namely, the low-pressure water pump II heats the cooling liquid in the compensation kettle III by the waste heat generated by the air compressor through the through hole of the two-way electromagnetic valve I, the air compressor controller and the air compressor controller outlet temperature sensor, then the cooling liquid heated by the waste heat passes through the through hole of the two-way electromagnetic valve II and the through hole of the two-way electromagnetic valve III and is further heated by the PTC water heater again, so that the cooling liquid has enough temperature, then the cooling liquid after double heating is sent to the electric pile through the through hole of the two-way electromagnetic valve IV, the flowmeter III and the electric pile inlet temperature sensor to warm up the electric pile, and finally, returning to a second low-pressure water pump for warming circulation through a galvanic pile outlet temperature sensor and a port of a five-way electromagnetic valve.
And (3) working after warming up: after the low-temperature cold start is completed, the opening of the first two-way solenoid valve, the opening of the second two-way solenoid valve, the opening of the third two-way solenoid valve, the opening of the fourth two-way solenoid valve and the opening of the fifth two-way solenoid valve are all switched to the other opening, at the moment, the waste heat recycling circulating system stops working, and the main heat dissipation system and the auxiliary heat dissipation system recover normal heat dissipation work.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (5)
1. A fuel cell cold start waste heat recycling system is characterized in that: the system comprises a fuel cell air supply system, a hydrogen supply system, a main heat dissipation system, an auxiliary heat dissipation system, a waste heat recycling system and an electric pile;
in the fuel cell air supply system, air is conveyed to a galvanic pile for electrochemical reaction through an air filter, a flowmeter I, an absolute pressure sensor I, an air compressor air path inlet thermometer, an air compressor air path outlet thermometer, a pressure sensor II, an intercooler outlet temperature sensor and a humidifier, and then gas after reaction is discharged through the humidifier, a back pressure valve and a silencer.
2. The fuel cell cold start waste heat recycling system of claim 1, wherein: in the fuel cell hydrogen supply system, high-pressure hydrogen stored in a gas storage tank enters a galvanic pile through a combined pressure reducing valve, an explosion-proof electromagnetic valve, a spray rail body and a hydrogen pile entering pressure sensor to carry out electrochemical reaction, then mixed gas of unreacted hydrogen and water vapor is discharged from a hydrogen discharge port of the galvanic pile, part of the hydrogen passes through a hydrogen circulating pump through a gas-water separator and reenters the galvanic pile, and the other part of the gas-water mixture is directly discharged through a water discharge and exhaust electromagnetic valve.
3. The fuel cell cold start waste heat recycling system of claim 1, wherein: in the main heat dissipation system of the fuel cell, a high-pressure water pump pressurizes cooling liquid in a compensation kettle I, a main heat dissipater I and a main heat dissipater II, then the cooling liquid is sent to a galvanic pile for cooling through a high-pressure water pump outlet temperature sensor, a flow meter II, a two-way electromagnetic valve four-port, a flow meter III and a galvanic pile inlet temperature sensor, and then the cooling liquid returns to the main heat dissipater I and the main heat dissipater II through the galvanic pile outlet temperature sensor and the two-way electromagnetic valve five-port.
4. The fuel cell cold start waste heat recycling system of claim 1, wherein: in the fuel cell auxiliary heat dissipation system, the low-pressure water pump I pressurizes the coolant in auxiliary heat radiator and the compensation kettle, and then carries out cooling for the air compressor through low-pressure water pump outlet temperature sensor, flowmeter III, the first opening of two-way solenoid valve, air compressor machine controller outlet temperature sensor, then gets into the intercooler through the two-way solenoid valve two-way opening again, gets back to the middle of the auxiliary heat radiator through intercooler outlet water route temperature sensor, the three openings of two-way solenoid valve and circulates.
5. The fuel cell cold start waste heat recycling system of claim 1, wherein: in the waste heat recycling circulating system, the cooling liquid in the compensation kettle III is sent into the electric pile through the two-way solenoid valve I opening, the air compressor controller outlet temperature sensor, the air compressor, the two-way solenoid valve II opening, the two-way solenoid valve III opening, the PTC water heater, the two-way solenoid valve IV opening, the flowmeter III and the electric pile inlet temperature sensor by the low-pressure water pump II, and then returns to the low-pressure water pump II through the electric pile outlet temperature sensor and the two-way solenoid valve V opening to circulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823224.XU CN211743312U (en) | 2020-08-27 | 2020-08-27 | Recycling and circulating system for cold start waste heat of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823224.XU CN211743312U (en) | 2020-08-27 | 2020-08-27 | Recycling and circulating system for cold start waste heat of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211743312U true CN211743312U (en) | 2020-10-23 |
Family
ID=72846692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021823224.XU Active CN211743312U (en) | 2020-08-27 | 2020-08-27 | Recycling and circulating system for cold start waste heat of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211743312U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803043A (en) * | 2021-01-03 | 2021-05-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell power system and low-temperature starting control method thereof |
| CN113130934A (en) * | 2021-04-13 | 2021-07-16 | 上海高诗汽车科技有限公司 | Integrated thermal management system for whole fuel cell vehicle |
| WO2022135374A1 (en) * | 2020-12-25 | 2022-06-30 | 中国第一汽车股份有限公司 | System and method for controlling cold start of fuel cell of vehicle |
| CN115020758A (en) * | 2021-03-03 | 2022-09-06 | 郑州宇通客车股份有限公司 | Fuel cell system, and cathode energy recovery control method and device |
| CN117393803A (en) * | 2023-12-13 | 2024-01-12 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell cold start system |
-
2020
- 2020-08-27 CN CN202021823224.XU patent/CN211743312U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022135374A1 (en) * | 2020-12-25 | 2022-06-30 | 中国第一汽车股份有限公司 | System and method for controlling cold start of fuel cell of vehicle |
| CN112803043A (en) * | 2021-01-03 | 2021-05-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell power system and low-temperature starting control method thereof |
| CN112803043B (en) * | 2021-01-03 | 2022-02-18 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell power system and low-temperature starting control method thereof |
| CN115020758A (en) * | 2021-03-03 | 2022-09-06 | 郑州宇通客车股份有限公司 | Fuel cell system, and cathode energy recovery control method and device |
| CN115020758B (en) * | 2021-03-03 | 2023-09-08 | 宇通客车股份有限公司 | Fuel cell system, cathode energy recovery control method and device |
| CN113130934A (en) * | 2021-04-13 | 2021-07-16 | 上海高诗汽车科技有限公司 | Integrated thermal management system for whole fuel cell vehicle |
| CN117393803A (en) * | 2023-12-13 | 2024-01-12 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell cold start system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211743312U (en) | Recycling and circulating system for cold start waste heat of fuel cell | |
| CN110649280A (en) | Fuel cell cogeneration system and device | |
| CN108317767A (en) | One proton exchanging film fuel battery afterheat utilizing system and method | |
| CN210668548U (en) | Fuel cell comprehensive heat management system and fuel cell electric vehicle | |
| CN103474686A (en) | Fuel cell engine system | |
| CN210866371U (en) | Fuel cell heating system | |
| CN109638312A (en) | A kind of fuel cell system recirculated cooling water device | |
| CN114284524A (en) | Heat exchange system and control method for liquid hydrogen fuel cell | |
| CN212625676U (en) | Integrated air system of vehicle fuel cell and vehicle fuel cell | |
| CN217214788U (en) | Fuel cell cooling system and hydrogen energy automobile | |
| CN216850010U (en) | Heat exchange system of liquid hydrogen fuel cell | |
| CN110416572A (en) | A kind of heating system and method using fuel cell waste-heat formic acid reactor | |
| CN210778820U (en) | Device for improving cold starting performance of fuel cell engine | |
| CN213546366U (en) | Fuel cell system | |
| CN204854070U (en) | Air -source heat pump trigeminy supplies unit | |
| CN115207408A (en) | Quick low-temperature cold start system of proton exchange membrane fuel cell | |
| CN210897483U (en) | Air control system of fuel cell engine | |
| CN203466258U (en) | Fuel cell engine system | |
| CN207942935U (en) | Vehicle and fuel cell system | |
| CN217114461U (en) | Gas heat exchanger for fuel cell | |
| CN217522057U (en) | Fuel cell system with cooling device | |
| CN216084957U (en) | Fuel cell system and vehicle | |
| CN117154133B (en) | Marine fuel cell comprehensive thermal management system | |
| CN212695196U (en) | Fuel cell hybrid power supply system suitable for cold start | |
| CN219873608U (en) | Fuel cell thermal management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |