CN115290364A - Test system of humidifier for fuel cell engine - Google Patents
Test system of humidifier for fuel cell engine Download PDFInfo
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Abstract
The invention relates to the test field of humidifiers, and discloses a test system of a humidifier for a fuel cell engine, wherein the humidifier comprises a dry gas flow channel and a wet gas flow channel; the test system comprises a dry gas supply module, a wet gas supply module, a humidifying module, a water diversion recovery module, a water circulation module and a temperature and humidity pressure sensor; the dry gas supply module is communicated with an inlet of the dry gas channel; the inlet of the humidifying module is respectively communicated with the wet gas supply module and the outlet of the dry gas channel, and the outlet of the humidifying module is communicated with the inlet of the wet gas channel; the two water diversion recovery modules are respectively communicated with outlets of the dry air flow channel and the wet air flow channel; the water circulation module is respectively connected with the humidification module and the water diversion recovery module; the temperature and humidity pressure sensors are respectively arranged at the inlet and the outlet of the dry air channel and the wet air channel. The test system of the humidifier for the fuel cell engine can independently control the gas of the dry gas flow channel and the wet gas flow channel and can recycle the exhaust gas.
Description
Technical Field
The invention relates to the field of testing of humidifiers, in particular to a testing system of a humidifier for a fuel cell engine.
Background
The fuel cell engine system is a novel fuel cell power generation system, and in the use process, air entering the galvanic pile needs to be humidified through a humidifier so as to improve the water content state of the cathodic of the galvanic pile, ensure that the galvanic pile works under the optimal humidity, improve the performance of the galvanic pile and further improve the performance of the engine. Therefore, the humidifier is one of important parts in a fuel cell engine system, and the humidification effect test of the humidifier is verified as an important ring in the humidifier development link.
Chinese patent application publication No. CN110600770B discloses a fuel cell humidifier testing system, which provides an air source for a humidifier dry air flow passage through an air compressor, controls the inlet temperature of the humidifier dry air flow passage through a heat exchanger, then the air enters the inlet of the humidifier dry air flow passage and is discharged into a spray circulation water tank from the outlet of the dry air flow passage for humidification, and the humidified wet air enters the inlet of the wet air flow passage of the humidifier and is directly discharged from the outlet of the wet air flow passage. The test system respectively tests the inlet and outlet temperature, pressure, humidity and other parameters of the dry and wet air flow channels of the humidifier, and evaluates the performance of the humidifier through the humidity change of the dry and wet air flow channels. However, the test system has the following problems in the use process:
1. the air sources of the wet and dry flow channels of the humidifier are the same, so that the air flow of the dry flow channel and the air flow of the wet flow channel cannot be independently and accurately controlled, and the performance evaluation result of the humidifier is influenced;
2. in the testing process, an air compressor is used as an air supply source, so that the power consumption is high, and a laboratory without the air compressor cannot use the testing system for testing and verification, so that the application range of the testing system is greatly limited;
3. the air is directly discharged from the outlet of the wet air channel of the humidifier, and the utilization rate is low.
In summary, it is necessary to design a testing system for a humidifier of a fuel cell engine to solve the above problems.
Disclosure of Invention
Technical problem to be solved
The invention provides a test system of a humidifier for a fuel cell engine, which can independently control the gas of a dry gas flow channel and a wet gas flow channel and can recycle the exhaust gas.
(II) technical scheme
In order to solve the technical problems, the invention provides the following technical scheme: a test system of a humidifier for a fuel cell engine, the humidifier for a fuel cell engine includes a dry gas flow channel and a wet gas flow channel; the test system comprises a dry gas supply module, a wet gas supply module, a humidification module, a water diversion recovery module, a water circulation module and a temperature and humidity pressure sensor;
the dry gas supply module is communicated with the inlet of the dry gas flow channel and is used for supplying gas to the dry gas flow channel;
the inlet of the humidifying module is respectively communicated with the wet gas supply module and the outlet of the dry gas channel, and the outlet of the humidifying module is communicated with the inlet of the wet gas channel so as to supply gas to the wet gas channel;
the two water diversion recovery modules are respectively communicated with outlets of the dry airflow channel and the wet airflow channel and are used for recovering moisture and heat in the air discharged by the dry airflow channel and the wet airflow channel;
the temperature and humidity pressure sensors are respectively arranged at the inlet and the outlet of the dry gas flow channel and the wet gas flow channel and used for detecting the temperature value, the humidity value and the pressure value of the gas at the inlet and the outlet of the dry gas flow channel and the wet gas flow channel.
The water circulation module is respectively connected with the humidification module and the water diversion recovery module and used for receiving the water recovered by the water diversion recovery module, heating and pressurizing the water, and then conveying the water to the humidification module for use.
The dry gas supply module comprises a compressed gas supply module and an air pressure gas supply module; the compressed air supply module and the air pressure air supply module are communicated with the inlet of the dry air channel.
So set up, compression air feed module and air compression air feed module homoenergetic are the dry gas runner air feed independently, also can be simultaneously for the dry gas runner air feed, reduce power consumption, and solved the problem that does not possess the unable test humidifier for fuel cell engine's in laboratory of air compressor machine performance, enlarged this test system's application range.
The compressed air supply module comprises a first pressure reducing valve and a first flow controller; the first pressure reducing valve is communicated with the air inlet end of the first flow controller.
So set up, first relief pressure valve can be exported for first flow controller after reducing the pressure of air to required pressure value, then first flow controller can simulate the state air regulation's of galvanic pile operation flow, for the air feed of drier air flue.
Further set up, aforesaid pneumatics air feed module is including the filter, air flowmeter, air compressor machine, cooler and the first warm-pressing sensor that communicate in proper order.
So set up, the air compression air feed module can be through the filter filtration air earlier, exports for the air compressor machine after rethread air flowmeter detects gas flow and compresses, exports behind the air compressor machine compressed air and cools off for the cooler, and the temperature value and the pressure value of detecting the air by first warm-pressing sensor after the cooling are exported again for the dry gas runner.
The compressed air supply module and the air pressure air supply module respectively comprise a buffer tank and a first heater; the air inlet end of the buffer tank is respectively communicated with the air outlet end of the first flow controller and the first temperature and pressure sensor through a three-way valve, and the air outlet end of the buffer tank is communicated with the air inlet end of the first heater; the air outlet end of the first heater is communicated with the inlet of the dry air flow channel.
By the arrangement, the buffer tank can buffer pressure fluctuation in the gas supply process, so that the gas supply process is more stable; the first heater is capable of heating the gas to provide the gas at a target temperature for the dry gas flow channel.
The water diversion recovery module comprises a water diversion heat exchanger and an electric valve; the air inlet end of the water diversion heat exchanger is communicated with the outlet of the dry air flow channel or the wet air flow channel, and the water outlet end of the water diversion heat exchanger is connected with the water circulation module through an electric valve.
According to the arrangement, the water diversion recovery module recovers the wet air discharged from the outlets of the dry side and the wet side, the water-gas in the wet air is separated by the water diversion heat exchanger to obtain the deionized water, then the deionized water is discharged into the water circulation module, and the deionized water is supplied to the humidification module by the water circulation module so as to be humidified by the humidification module, so that the effects of energy conservation and consumption reduction are achieved; the electric valve is used for controlling the water outlet end of the water diversion heat exchanger to be communicated or cut off with the water circulation module.
The exhaust end of the water diversion heat exchanger is connected with an exhaust module communicated with an engine exhaust pipe; the exhaust module comprises a second heater communicated with the air outlet end of the water-dividing heat exchanger and a flow meter communicated with the second heater and the tail gas exhaust pipe.
So set up, the tail exhaust gas body that the division water heat exchanger separated is discharged to engine tail gas discharge pipe after the emission module is handled through second heater and flowmeter.
The test system further comprises a water circulation module; the water circulation module comprises a water collecting tank, a third heater, a circulating water pump, a pressurizing water pump and a second temperature and pressure sensor; the third heater is arranged in the water collecting tank; the water inlet end of the water collecting tank is respectively communicated with the water diversion recovery module, the humidification module and the water outlet end of the circulating water pump, and the water outlet end of the water collecting tank is communicated with the water inlet end of the pressurizing water pump; the water outlet end of the pressure water pump is communicated with the water inlet end of the circulating water pump; the water outlet end of the circulating water pump is also communicated with the humidifying module, and an electric control valve is arranged between the water outlet end of the circulating water pump and the humidifying module; the second temperature and pressure sensor is arranged between the pressurizing water pump and the circulating water pump.
So set up, the water that the recovery module of dividing water separated and the water of humidification module are gone into in the header tank, heat by the third heater in the header tank, carry to the pressure water pump after the heating, the pressure water pump pressurizes water, and carry again to circulating water pump, and in the transportation process, the temperature and the pressure of water are measured to second temperature and pressure sensor, if reach the requirement, then open electric control valve, and circulating water pump is with pumping into the humidification module, for the humidification use, otherwise electric control valve keeps closing, and circulating water pump heats in the return header tank of water pump.
Further, the moisture gas supply module comprises a second pressure reducing valve, a second flow controller and a temperature controller which are communicated in sequence.
So set up, the second flow controller is exported after the pressure that the second relief pressure valve can reduce the air to the pressure value of needs, exports for the temperature controller after the flow that the second flow controller can adjust the air, and the temperature controller can adjust the temperature of air after carry to the humidification module and carry out the humidification.
Further, a temperature control module is connected between the humidifying module and the inlet of the wet air channel.
So set up, the temperature of the gas after the temperature control module can adjust the humidification, ensures that the gas temperature who gets into the humid air runner can reach required temperature value.
(III) advantageous effects
Compared with the prior art, the test system of the humidifier for the fuel cell engine provided by the invention has the following beneficial effects:
1. when the test system is used, the dry gas supply module supplies gas for the dry gas flow channel, and the gas is discharged into the humidification module or one of the water diversion recovery modules through the outlet of the dry gas flow channel;
the wet gas channel is supplied with gas through an outlet of the wet gas supply module or the dry gas channel, the gas enters the wet gas channel after being humidified by the humidifying module and is discharged into the other water diversion recovery module through an outlet of the wet gas channel;
in the testing process, the temperature and humidity pressure sensor detects the temperature value, the humidity value and the pressure value of the gas at the inlet and the outlet of the dry gas flow channel and the wet gas flow channel.
Therefore, the test system of the humidifier for the fuel cell engine can independently control the gas entering the dry gas flow channel and the gas entering the wet gas flow channel through the dry gas supply module, the wet gas supply module and the humidification module, can verify the humidity, temperature and pressure changes of the humidifier after humidification through the temperature and humidity pressure sensor, and quantizes the humidification amount;
2. the humidifying module can humidify the gas exhausted by the wet gas supply module and supply gas to the wet gas flow passage; the gas discharged from the dry gas flow channel can be recycled to supply gas for the wet gas flow channel;
3. the testing system can recycle the moisture and heat carried in the gas discharged by the dry gas flow channel and the wet gas flow channel through the water diversion recovery module to carry out water diversion treatment; the water diversion recovery module and the water circulation module are matched to convey the separated deionized water to the humidification module for the humidification module to use, so that the consumption of the deionized water is reduced, and the water supplement amount and the operation cost of the test system are reduced;
and the test system can simulate the consumption of the galvanic pile, humidify the gas discharged from the dry gas flow channel, supply gas to the wet gas flow channel and reduce the gas consumption cost.
Drawings
Fig. 1 is a schematic connection diagram of a test system (a first operation mode) of a humidifier for a fuel cell engine according to the present invention;
fig. 2 is a schematic connection diagram of a test system (a second operation mode) of a humidifier for a fuel cell engine according to the present invention;
fig. 3 is a schematic connection diagram of a test system (a third operation mode) of a humidifier for a fuel cell engine according to the present invention;
fig. 4 is a schematic connection diagram of a test system (a fourth operation mode) of a humidifier for a fuel cell engine according to the present invention;
fig. 5 is a schematic connection diagram of a test system (a fifth operation mode) of a humidifier for a fuel cell engine according to the present invention.
Reference numbers: 1. a first pressure reducing valve; 2. a first flow controller; 3. a filter; 4. an air flow meter; 5. an air compressor; 6. a cooler; 7. a first temperature and pressure sensor; 8. a three-way valve; 9. a buffer tank; 10. a first heater; 11. a temperature-humidity pressure sensor a; 12. a humidifier; 13. a warm-wet pressure sensor b; 14. a back pressure valve a; 15. a water diversion heat exchanger a; 16. a second heater; 17. a flow meter; 18. a tail gas discharge pipe; 19. a water inlet; 20. a water outlet end; 21. a discharge pipe; 22. a heat exchanger; 23. a water pump; 24. a water diversion heat exchanger b; 25. a back pressure valve b; 26. a warm-wet pressure sensor c; 27. a first ball valve; 28. a first electrically operated valve; 29. a second temperature and pressure sensor; 30. a third electrically operated valve; 31. a warm-wet pressure sensor d; 32. a temperature control module; 33. a humidifying module; 34. a temperature controller; 35. a second flow controller; 36. a second pressure reducing valve; 37. a second ball valve; 38. a second electrically operated valve; 39. and a water circulation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, a test system of a humidifier for a fuel cell engine 12 includes a dry gas flow channel and a wet gas flow channel, and is capable of independently controlling gas entering the dry gas flow channel and the wet gas flow channel of the humidifier 12, verifying and quantifying a change in a humidification amount; and the discharged gas can be recycled, so that the water supplementing amount and the running cost of the test system are reduced.
The test system of the humidifier for the fuel cell engine comprises a dry gas supply module, a wet gas supply module, a humidifying module 33, a water diversion recovery module, a water circulation module and a temperature, humidity and pressure sensor.
The dry gas supply module is communicated with an inlet of the dry gas flow channel and used for supplying gas to the dry gas flow channel.
The dry gas supply module comprises a compressed gas supply module and an air pressure gas supply module; the compressed air supply module and the air pressure air supply module are both communicated with the inlet of the dry air channel.
The compressed air supply module comprises a compressed air supply module and a first flow controller, wherein the compressed air supply module comprises a first pressure reducing valve 1 and a first flow controller 2; the first pressure reducing valve 1 communicates with the intake end of the first flow controller 2.
The air pressure air supply module comprises a filter 3, an air flow meter 4, an air compressor 5, a cooler 6 and a first temperature and pressure sensor 7 which are sequentially communicated.
The compressed air supply module and the air-compressed air supply module both further comprise a buffer tank 9 and a first heater 10; the air inlet end of the buffer tank 9 is respectively communicated with the air outlet end of the first flow controller 2 and the first temperature and pressure sensor 7 through a three-way valve 8, and the air outlet end of the buffer tank is communicated with the air inlet end of the first heater 10; the outlet end of the first heater 10 is communicated with the inlet of the dry gas channel.
The inlet of the humidifying module 33 is communicated with the outlets of the wet gas supply module and the dry gas channel respectively, and the outlet thereof is communicated with the inlet of the wet gas channel for supplying gas to the wet gas channel.
The moisture gas supply module comprises a second pressure reducing valve 36, a second flow controller 35 and a temperature controller 34 which are communicated in sequence.
The two water diversion recovery modules comprise water diversion heat exchangers and electric valves; the air inlet end of one of the water-dividing heat exchangers is communicated with the outlet of the dry airflow channel so as to be used for recovering moisture and heat carried in the air discharged by the dry airflow channel, and the air inlet end of the other water-dividing heat exchanger is communicated with the outlet of the wet airflow channel so as to be used for recovering moisture and heat carried in the air discharged by the wet airflow channel. The water outlet end of the water diversion heat exchanger is connected with the water circulation module through an electric valve.
The water diversion heat exchanger and the electric valve which are communicated with the outlet of the dry gas flow channel are respectively set as a water diversion heat exchanger a15 and a first electric valve 28; the water dividing heat exchanger and the electric valve communicating with the outlet of the moisture flow channel are set as the water dividing heat exchanger b24 and the second electric valve 38, respectively.
The air outlet end of the water diversion heat exchanger b24 is connected with an exhaust module which is communicated with an engine tail gas exhaust pipe 18; the discharge module comprises a second heater 16 communicated with the gas outlet end of the water-dividing heat exchanger b24 and a flow meter 17 communicated with the second heater 16 and the tail gas discharge pipe 18.
The humidification module 33 includes a humidification tank; in this way, the humidification module 33 performs spray humidification on the gas exhausted from the dry gas flow passage or the wet gas supply module through the humidification tank, thereby supplying the wet gas flow passage with the wet gas.
However, the humidification mode of the humidification module 33 is not limited to the humidification tank spray humidification mode, and the humidification tank spray humidification mode may be replaced by bubbling humidification, vapor isenthalpic humidification, and the like.
A temperature control module 32 is connected between the humidifying module 33 and the inlet of the wet air channel, and the temperature control module 32 adopts an existing temperature controller 34.
The water circulation module 39 is respectively connected with the humidifying module 33 and the water diversion recovery module, and is used for receiving the water recovered by the water diversion recovery module, heating and pressurizing the water, and then conveying the water to the humidifying module 33 for use;
the water circulation module 39 comprises a water collection tank, a third heater, a circulating water pump, a pressurizing water pump and a second temperature and pressure sensor 29; the third heater is arranged in the water collecting tank; the water inlet end of the water collecting tank is respectively communicated with the water dividing heat exchanger, the humidifying module 33 and the water outlet end of the circulating water pump, and the water outlet end of the water collecting tank is communicated with the water inlet end of the pressurizing water pump; the water outlet end of the pressure water pump is communicated with the water inlet end of the circulating water pump; the water outlet end of the circulating water pump is also communicated with the humidifying module 33, and an electric control valve is arranged between the water outlet end of the circulating water pump and the humidifying module; the second temperature and pressure sensor 29 is installed between the pressurizing water pump and the circulating water pump.
The four temperature and humidity pressure sensors are respectively arranged at the inlets and the outlets of the dry gas channel and the wet gas channel, wherein the temperature and humidity pressure sensor a11 is arranged at the inlet of the dry gas channel and is used for detecting the temperature value, the humidity value and the pressure value of the gas at the inlet of the dry gas channel; a set temperature and humidity pressure sensor b13 positioned at the outlet of the dry gas flow passage and used for detecting the temperature value, the humidity value and the pressure value of the gas at the outlet of the dry gas flow passage; a temperature and humidity pressure sensor c26 is arranged at the outlet of the wet gas flow channel and is used for detecting the temperature value, the humidity value and the pressure value of the gas at the outlet of the wet gas flow channel; and the set temperature-humidity pressure sensor d31 is positioned at the inlet of the wet gas flow channel and is used for detecting the temperature value, the humidity value and the pressure value of the gas at the inlet of the wet gas flow channel.
In the embodiment, as shown in fig. 1 to 5, the present invention is exemplified by a test system of a humidifier for a fuel cell engine, which mainly includes: dry gas supply module, wet gas supply module, humidification module 33, water diversion recovery module, temperature and humidity pressure sensor and water circulation module 39.
During actual assembly and use: (1) The first pressure reducing valve 1 is communicated with the air inlet end of the first flow controller 2;
the filter 3, the air flow meter 4, the air compressor 5, the cooler 6 and the first temperature and pressure sensor 7 are communicated in sequence;
the air outlet end of the first flow controller 2 and the first temperature and pressure sensor 7 are communicated with the air inlet end of the buffer tank 9 through a three-way valve 8, and the air outlet end of the buffer tank 9 is communicated with the air inlet end of the first heater 10; the air outlet end of the first heater 10 is communicated with the inlet of the dry air channel;
(2) The outlet of the dry gas flow channel is communicated with the inlet of the humidification module 33, and is also communicated with the gas inlet end of the water diversion heat exchanger a15 and the first electric valve 28 in sequence, the gas outlet end of the water diversion heat exchanger a15 is connected with the second heater 16, and the second heater 16, the flow meter 17 and the tail gas discharge pipe 18 are communicated in sequence;
(3) The second pressure reducing valve 36, the second flow controller 35, the temperature controller 34, the humidifying module 33, the temperature control module 32 and the inlet of the wet gas flow channel are communicated in sequence; the outlet of the wet gas flow channel is sequentially communicated with the gas inlet end of the water-dividing heat exchanger b24 and the second electric valve 38;
(4) The temperature and humidity pressure sensor a11 is arranged at the inlet of the dry air flow channel; the temperature and humidity pressure sensor b13 is arranged at the outlet of the dry air flow channel; the temperature and humidity pressure sensor c26 is arranged at the outlet of the humidity flow channel; the temperature-humidity pressure sensor d31 is arranged at the inlet of the humidity flow channel;
(5) The water outlet end of the water diversion heat exchanger a15 is connected with the water inlet end of the water collecting tank through a first electric valve 28; the water outlet end of the water diversion heat exchanger b24 is connected with the water inlet end of the water collecting tank through a second electric valve 38; the water inlet end of the water collecting tank is also respectively communicated with the humidifying module 33 and the water outlet end of the circulating water pump, and the water outlet end of the water collecting tank is communicated with the water inlet end of the pressurizing water pump; the third heater is arranged in the water collecting tank; the water outlet end of the pressure water pump is communicated with the water inlet end of the circulating water pump; the water outlet end of the circulating water pump is also communicated with the humidifying module 33, and an electric control valve is arranged between the water outlet end of the circulating water pump and the humidifying module; the second warm pressure sensor 29 is installed between the pressurizing water pump and the circulating water pump.
The working principle in actual use is as follows:
the test system of the humidifier for the fuel cell engine provided by the invention has five working modes:
in a first operation mode, as shown in fig. 1, the compressed air supply module supplies air to the dry air channel of the humidifier 12 separately, and the air discharged from the dry air channel is discharged separately through the water diversion and recovery module, which specifically comprises the following steps: air sequentially passes through a first pressure reducing valve 1, a first flow controller 2, a buffer tank 9, a first heater 10 and a temperature and humidity pressure sensor a11, then enters a dry air flow channel of a humidifier 12, is discharged from an outlet of the dry air flow channel, sequentially passes through a temperature and humidity pressure sensor b13, a water-dividing heat exchanger a15, a second heater 16 and a flow meter 17, then enters a tail gas discharge pipe 18, and is discharged from the tail gas discharge pipe 18;
the air sequentially passes through a second pressure reducing valve 36, a second flow controller 35, a temperature controller 34, a humidifying module 33, a temperature control module 32 and a temperature and humidity pressure sensor d31, enters a humidity flow channel of the humidifier 12, is discharged from an outlet of the humidity flow channel, and is directly discharged after sequentially passing through a temperature and humidity pressure sensor c26 and a water-dividing heat exchanger b 24;
in a second operation mode, as shown in fig. 2, the air pressure air supply module supplies air to the dry air flow channel of the humidifier 12, and the air discharged from the dry air flow channel is discharged through the water diversion and recovery module, which includes the following specific processes: the air passes through the filter 3, the air flow meter 4, the air compressor 5, the cooler 6, the first temperature and pressure sensor 7, the buffer tank 9, the first heater 10 and the temperature and humidity pressure sensor a11 in sequence, and then enters the dry air flow channel of the humidifier 12, and the rest process is the same as the above process.
In a third operation mode, as shown in fig. 3, the compressed air supply module and the air pressure air supply module supply air to the dry air flow channel of the humidifier 12 together, and the air discharged from the dry air flow channel is discharged separately through the water diversion and recovery module, specifically, the two processes are integrated;
in the fourth operation mode, as shown in fig. 4, the compressed air supply module and the air-compressed air supply module jointly supply air to the dry air flow channel of the humidifier 12, the air discharged from the dry air flow channel is discharged together with the humidification module 33 through the water diversion and recovery module, and the air discharged into the humidification module 33 from the dry air flow channel and the air discharged into the humidification module 33 from the wet air supply module jointly supply air to the wet air flow channel, which includes the following steps: the process of the air entering the dry air channel is consistent with the above process, and is not described again; the air is discharged from the outlet of the dry air channel, after passing through the temperature and humidity pressure sensor b13, one part of the air is discharged from the tail gas discharge pipe 18 as described above, the other part of the air sequentially enters the humidifying module 33, and after passing through the temperature control module 32 and the temperature and humidity pressure sensor d31 together with the air discharged by the humidity air supply module, the air enters the wet air channel of the humidifier 12 and then is discharged from the outlet of the wet air channel, and the rest process is the same as that described above;
in a fifth operation mode, as shown in fig. 5, the compressed air supply module and the air pressure air supply module jointly supply air to the dry air channel of the humidifier 12, the air discharged from the dry air channel is discharged together with the humidification module 33 through the water diversion and recovery module, and the air discharged from the dry air channel into the humidification module 33 independently supplies air to the wet air channel, which specifically comprises the following steps: the processes of air entering the dry air channel and air discharging from the dry air channel are the same as the above, and are not described again; the air discharged from the outlet of the dry air flow passage into the humidification module 33 passes through the temperature control module 32 and the temperature and humidity pressure sensor d31 separately, enters the wet air flow passage of the humidifier 12, and is then discharged from the outlet of the wet air flow passage, and the rest process is the same as the above;
in the testing process, the temperature and humidity pressure sensor a11 detects the temperature value, the humidity value and the pressure value of the gas at the inlet of the dry gas flow channel; the temperature and humidity pressure sensor b13 detects the temperature value, the humidity value and the pressure value of the gas at the outlet of the dry gas flow passage; the temperature and humidity pressure sensor c26 detects the temperature value, the humidity value and the pressure value of the gas at the outlet of the humidity gas flow passage; the temperature and humidity pressure sensor d31 detects the temperature value, the humidity value and the pressure value of the gas at the inlet of the humidity gas flow passage;
in the test process, when the first electric valve 28 and the second electric valve 38 are opened, the water diversion heat exchanger a15 and the water diversion heat exchanger b24 discharge the separated water into the water collection tank of the water circulation module, the humidification module 33 also discharges the water into the water collection tank of the water circulation module, and the water circulation module is heated and pressurized and then is conveyed to the humidification module 33 for use.
The test system of the humidifier for the fuel cell engine can independently control the gas entering the dry gas flow channel and the wet gas flow channel, and can detect the temperature value, the humidity value and the pressure value of the gas at the inlet and the outlet of the dry gas flow channel and the wet gas flow channel through the temperature and humidity pressure sensor, so as to verify and quantify the humidification quantity of the humidifier 12;
the compressed air supply module and the air pressure air supply module can independently supply air for the dry air channel and can also supply air for the dry air channel simultaneously, so that the power consumption is reduced, the problem that a laboratory without the air compressor 5 cannot test the performance of the humidifier 12 for the fuel cell engine is solved by various air supply modes, and the application range of the test system is expanded;
the humidifying module 33 can not only humidify the gas discharged by the wet gas supply module, but also supply gas to the wet gas flow channel; the gas discharged from the dry gas flow channel can be recycled to supply gas for the wet gas flow channel;
the test system can recycle moisture and heat carried in gas discharged from the dry gas flow channel and the wet gas flow channel through the water diversion recovery module to carry out water diversion treatment; the water diversion recovery module and the water circulation module are matched to convey the separated deionized water to the humidification module for the humidification module to use, so that the consumption of the deionized water is reduced, and the water supplement amount and the operation cost of the test system are reduced;
and the test system can simulate the consumption of the galvanic pile, humidify the gas discharged from the dry gas flow channel, supply gas to the wet gas flow channel and reduce the gas consumption cost.
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 (10)
1. A test system of a humidifier for a fuel cell engine includes a dry gas flow passage and a wet gas flow passage; the system is characterized by comprising a dry gas supply module, a wet gas supply module, a humidifying module, a water diversion recovery module, a water circulation module and a temperature and humidity pressure sensor;
the dry gas supply module is communicated with an inlet of the dry gas flow channel and is used for supplying gas to the dry gas flow channel;
the inlet of the humidifying module is respectively communicated with the wet gas supply module and the outlet of the dry gas channel, and the outlet of the humidifying module is communicated with the inlet of the wet gas channel so as to supply gas to the wet gas channel;
the two water diversion recovery modules are respectively communicated with outlets of the dry airflow channel and the wet airflow channel and are used for recovering moisture and heat in the air discharged by the dry airflow channel and the wet airflow channel;
the water circulation module is respectively connected with the humidifying module and the water diversion recovery module and is used for receiving the water recovered by the water diversion recovery module, heating and pressurizing the water and then conveying the water to the humidifying module for use;
the temperature and humidity pressure sensors are respectively arranged at the inlets and the outlets of the dry gas flow channel and the wet gas flow channel and used for detecting the temperature value, the humidity value and the pressure value of the gas at the inlets and the outlets of the dry gas flow channel and the wet gas flow channel.
2. The system of claim 1, wherein the dry gas supply module comprises a compressed gas supply module and an air pressure gas supply module; the compressed air supply module and the air pressure air supply module are communicated with the inlet of the dry air flow channel.
3. The test system for a humidifier for a fuel cell engine according to claim 2, wherein said compressed air supply module includes a first pressure reducing valve and a first flow controller; the first pressure reducing valve is communicated with the air inlet end of the first flow controller.
4. The system for testing the humidifier for a fuel cell engine according to claim 3, wherein the air pressure supply module comprises a filter, an air flow meter, an air compressor, a cooler and a first temperature and pressure sensor which are sequentially communicated.
5. The system of claim 4, wherein each of the compressed air supply module and the compressed air supply module further comprises a buffer tank and a first heater; the air inlet end of the buffer tank is respectively communicated with the air outlet end of the first flow controller and the first temperature and pressure sensor through a three-way valve, and the air outlet end of the buffer tank is communicated with the air inlet end of the first heater; and the air outlet end of the first heater is communicated with the inlet of the dry air flow channel.
6. The test system for the humidifier for a fuel cell engine according to claim 1, wherein the branched water recovery module includes a branched water heat exchanger and an electric valve; the air inlet end of the water diversion heat exchanger is communicated with the outlet of the dry air flow channel or the wet air flow channel, and the water outlet end of the water diversion heat exchanger is connected with the water circulation module through an electric valve.
7. The test system of the humidifier for the fuel cell engine according to claim 6, wherein an exhaust module for communicating with an engine exhaust gas exhaust pipe is connected to an air outlet end of the water-dividing heat exchanger; the exhaust module comprises a second heater communicated with the air outlet end of the water-dividing heat exchanger and a flow meter communicated with the second heater and the tail gas exhaust pipe.
8. The test system for the humidifier for a fuel cell engine according to claim 1, wherein the water circulation module includes a water collection tank, a third heater, a water circulation pump, a pressurized water pump, and a second warm pressure sensor; the third heater is arranged in the water collecting tank; the water inlet end of the water collecting tank is respectively communicated with the water dividing and recovering module, the humidifying module and the water outlet end of the circulating water pump, and the water outlet end of the water collecting tank is communicated with the water inlet end of the pressurizing water pump; the water outlet end of the pressurizing water pump is communicated with the water inlet end of the circulating water pump; the water outlet end of the circulating water pump is also communicated with the humidifying module, and an electric control valve is arranged between the water outlet end of the circulating water pump and the humidifying module; and the second temperature and pressure sensor is arranged between the pressurizing water pump and the circulating water pump.
9. The system for testing a humidifier for a fuel cell engine of claim 1, wherein the moisture supply module comprises a second pressure reducing valve, a second flow controller and a temperature controller, which are sequentially connected.
10. The system for testing a humidifier for a fuel cell engine of claim 1, wherein a temperature control module is connected between the humidification module and the inlet of the wet gas flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210792227.9A CN115290364A (en) | 2022-07-07 | 2022-07-07 | Test system of humidifier for fuel cell engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210792227.9A CN115290364A (en) | 2022-07-07 | 2022-07-07 | Test system of humidifier for fuel cell engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086851A (en) * | 2023-04-06 | 2023-05-09 | 江苏重塑能源科技有限公司 | Humidifier testing system and method |
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- 2022-07-07 CN CN202210792227.9A patent/CN115290364A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086851A (en) * | 2023-04-06 | 2023-05-09 | 江苏重塑能源科技有限公司 | Humidifier testing system and method |
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