CN214890520U

CN214890520U - Gas supply system for fuel cell test

Info

Publication number: CN214890520U
Application number: CN202122553949.2U
Authority: CN
Inventors: 王二明; 李磊; 李志刚; 赵明月; 张文静
Original assignee: Henan Henan Henan Hydrogen Equipment Co ltd
Current assignee: Henan Henan Henan Hydrogen Equipment Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2021-11-26
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a gas supply system for fuel cell testing, which comprises a primary pressure reducer, a secondary pressure reducer, a safety valve, a ball valve, a gas buffer tank, a busbar, a pneumatic ball valve, a mass flow meter, a solenoid valve, a PLC (programmable logic controller) and a terminal touch screen; the test is used gas and is looped through the one-level pressure reducer behind the gas inlet interface entering system for the test, the second grade pressure reducer decompression to assigned pressure, and gas buffer tank passes through ball valve and main test tube coupling and guarantees the stability of test gas use, and bus I utilizes the cavity to fall into the multichannel after the gas buffer for the main line test and inserts the test branch road, the utility model discloses a two-stage decompression, gas buffer tank, the multiple setting of cavity cube bus make the gas use for the ultimate test the biggest keep continuous supply and pressure stability and can satisfy different gas flow volume requirements, carry out effectual monitoring and control to whole gas supply system through PLC control system simultaneously, both guaranteed entire system's safe and reliable.

Description

Gas supply system for fuel cell test

Technical Field

The utility model relates to a fuel cell tests the field, specifically is a gas supply system is used in fuel cell test.

Background

The fuel cell is a high-efficiency and clean electrochemical power generation device, generally paid attention at home and abroad in recent years, successfully demonstrated in civil fields such as automobiles, power stations and portable power supplies, and the fuel cell can become a revolution of the energy industry like photovoltaic, and is a large industry which can see 5 years or even more than 10 years, but at present, the fuel cell is in a commercial lead-in period, and the requirements of customers on the aspects of cost, technical maturity, user experience, reliability, quality and the like can not be met.

In the immature stage of the technology, the iteration of the product and the technology is very fast, and the test before the batch application of the fuel cells becomes very important in order to ensure the safety of using the product by customers. Most of the current gas for testing the fuel cell is used after air is introduced from a gas source and is connected to the fuel cell for testing after pressure reduction, and the following problems exist in the process: 1. once the pressure of the gas source is changed sharply, the gas pressure at the gas end for testing is also changed sharply, and the continuity and stability of the gas for testing cannot be effectively ensured; 2. once the pipeline of the equipment is determined, the flow of the pipeline is also determined, and the requirement of technical iteration on flow change cannot be met; 3. the gas supply part in the test process seriously depends on manual operation and monitoring, and automatic control and monitoring cannot be realized; 4. the test gas consumption of a certain device cannot be monitored and analyzed independently.

Disclosure of Invention

To current a great deal of problem, the utility model provides a novel fuel cell test air supply system with, the system integration level is high, can effectively guarantee the continuous steady supply of test gas to satisfy different gas flow demands, the overall process can realize automated operation, can collect the record to the data in the whole testing process simultaneously, carries out real-time supervision and on-line analysis.

In order to achieve the above object, the utility model provides a following technical scheme: an air supply system for a fuel cell test comprises a main air supply pipeline, a test branch pipeline, an emptying pipeline, a driving air pipeline, a PLC (programmable logic controller) and a terminal touch screen; the front end of the main gas supply pipeline is connected with a gas source through a gas inlet interface for testing, and a one-way valve, a pressure sensor I, a pressure gauge I, a ball valve I, a primary pressure reducer, a secondary pressure reducer, a filter and a hollow cubic busbar I are sequentially arranged in the main gas supply pipeline along the gas circulation direction; a pressure gauge II and a pressure gauge III are respectively arranged at the air outlet end of the first-stage pressure reducer and the second-stage pressure reducer, a gas cache tank is connected between the filter and the hollow cubic busbar I through a ball valve IV, three groups of testing branches are arranged side by side in the air outlet direction of the hollow cubic busbar I, the first group of testing branches are sequentially provided with a pneumatic ball valve I, a mass flow meter I, a ball valve V, a stainless steel hose I and a gas interface I for a fuel cell along the gas flow direction, the second group of testing branches are sequentially provided with a pneumatic ball valve II, a mass flow meter II, a ball valve VI, a stainless steel hose II and a gas interface II for a fuel cell along the gas flow direction, and the third group of testing branches are sequentially provided with a pneumatic ball valve III, a mass flow meter III, a ball valve VII, a stainless steel hose III and a gas interface III for a fuel cell along the gas flow direction; the hollow cubic busbar I is provided with a pressure gauge IV and a pressure sensor II.

The emptying pipeline comprises a ball valve II, a safety valve I, a ball valve III and a safety valve II, and a flame arrester is arranged at the tail end of the emptying pipeline; ball valve II uses with I cooperation of relief valve to be located between ball valve I and the first-class pressure reducer as the branch road, ball valve III uses with II cooperations of relief valve to be located between second-class pressure reducer and the filter as the branch road.

The drive gas pipeline is connected with drive gas through the drive gas interface that admits air, has set gradually oil water separator and hollow cube busbar II along the gas flow direction in the drive gas pipeline, be provided with three group's branch roads on the hollow cube busbar II respectively, first group's branch road passes through solenoid valve I and is connected with pneumatic ball valve I, and the branch road of second group passes through solenoid valve II and is connected with pneumatic ball valve II, and the branch road of third group passes through solenoid valve III and is connected with pneumatic ball valve III, is provided with manometer V and pressure sensor III on the hollow cube busbar II.

Further, pressure sensor I, pressure sensor II, mass flowmeter I, mass flowmeter II, mass flowmeter III, solenoid valve I, solenoid valve II, solenoid valve III all are connected with the PLC controller, the PLC controller is connected with the terminal touch-sensitive screen.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the PLC is matched with the terminal touch screen for use, so that real-time acquisition, analysis and monitoring control of data are realized, unmanned operation of a gas supply end for testing is met, and on-site display operation and remote display operation of the data are realized.

2. Two-stage decompression, gas buffer tank and hollow cubic busbar are sequentially arranged along the gas circulation direction, so that the gas for final test can be continuously supplied and the pressure is stable, and the protection effect on the gas for the fuel cell can meet the test requirements of various flows and multiple sets of fuel cells.

3. The multiple test branches are mutually independent and do not interfere with each other, and independent operation and data acquisition and analysis can be carried out.

4. The system has high integration degree, perfect functions and reasonable structure, can be used as independent equipment, and meets the application requirements of multiple scenes.

Drawings

FIG. 1 is a connection diagram of the pipeline of the present invention;

in the figure: 1 air inlet interface for test, 2 one-way valve, 3 pressure sensor I, 4 pressure gauge I, 5 ball valve I, 6 ball valve II, 7 safety valve I, 8 first-stage pressure reducer, 9 pressure gauge II, 10 second-stage pressure reducer, 11 pressure gauge III, 12 safety valve II, 13 filter, 14 ball valve III, 15 ball valve IV, 16 gas buffer tank, 17 hollow cubic busbar I, 18 pressure gauge IV, 19 pressure sensor II, 20 flame arrester, 21 pneumatic ball valve I, 22 mass flowmeter I, 23 ball valve V, 24 stainless steel hose I, 25 air interface I for fuel cell, 26 pneumatic ball valve II, 27 mass flowmeter II, 28 ball valve VI, 29 stainless steel hose II, 30 air interface II for fuel cell, 31 pneumatic ball valve III, 32 mass flowmeter III, 33 ball valve VII, 34 stainless steel hose III, 35 air interface III for fuel cell, 36 driving air inlet interface, 37 oil-water separator, 38 hollow cubic busbar II, 39 pressure sensor III, 40 manometer V, 41 solenoid valve I, 42 solenoid valve II, 43 solenoid valve III, 44PLC controller, 45 terminal touch-sensitive screen.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. An air supply system for a fuel cell test comprises a main air supply pipeline, a test branch pipeline, an emptying pipeline, a driving air pipeline, a PLC (programmable logic controller) 44 and a terminal touch screen 45; the front end of a main gas supply pipeline is connected with a gas source through a test gas inlet interface 1, and a check valve 2, a pressure sensor I3, a pressure gauge I4, a ball valve I5, a first-stage pressure reducer 8, a second-stage pressure reducer 10, a filter 13 and a hollow cubic busbar I17 are sequentially arranged in the main gas supply pipeline along the gas circulation direction; check valve 2 is used for preventing the gas reflux in the unexpected back main gas supply pipeline that reduces of air supply pressure, pressure sensor I3 and manometer I4 are used for showing and collecting the pressure before the pressure reducer, be provided with manometer II 9 and manometer III 11 respectively on one-level pressure reducer 8 and the second grade pressure reducer 10 at the end of giving vent to anger, be used for showing the pressure after the decompression, as shown in the figure, air supply pressure before one-level pressure reducer 8 can fluctuate in a pressure range according to the difference of storage condition, along with the going on of test procedure, air supply pressure also will decline gradually along with gaseous consumption, traditional one-level pressure reducer that uses often can't keep the air supply pressure of the end of giving vent to anger under the air supply condition of so complicated stabilizes under fixed pressure, the utility model discloses one-level pressure reducer 8 reduces air supply pressure to the pressure range of a basic stable pressure and then rethread second grade 10 decompresses pressure to a stable pressure of testing, the pressure stability of the gas is used in effectual assurance test, is connected with gaseous buffer tank 16 through ball valve IV 15 between filter 13 and the hollow cube busbar I17, and the two-stage decompression rear end is provided with the cleanliness factor that the filter guaranteed the gas is used in the test. The gas buffer tank 16 is used as a bypass and can buffer a certain amount of gas independently, so that the requirement of large flow gas consumption at a test end in a short time is met, the problem that the test gas cannot be sufficiently supplied due to the flow limitation of a pressure reducer when the gas consumption is sharply increased under special conditions is avoided, the stable supply of the test gas is ensured, and the damage or test interruption of test equipment is avoided; three groups of testing branches are arranged in parallel in the direction of an air outlet of the hollow cubic busbar I17, a first group of testing branches are sequentially provided with a pneumatic ball valve I21, a mass flow meter I22, a ball valve V23, a stainless steel hose I24 and an air interface I25 for a fuel cell along the direction of gas flow, a second group of testing branches are sequentially provided with a pneumatic ball valve II 26, a mass flow meter II 27, a ball valve VI 28, a stainless steel hose II 29 and an air interface II 30 for the fuel cell along the direction of gas flow, and a third group of testing branches are sequentially provided with a pneumatic ball valve III 31, a mass flow meter III 32, a ball valve VII 33, a stainless steel hose III 34 and an air interface III 35 for the fuel cell along the direction of gas flow; the hollow cubic bus bar I17 is used as a connecting point of a main air supply pipeline and a test branch, the main air supply pipeline can be divided into a plurality of branches for multi-path test, meanwhile, a hollow cavity in the hollow cubic bus bar I17 can buffer the gas used by the branches, the stability of the gas used for the test is further ensured, and a pressure gauge IV 18 and a pressure sensor II 19 are arranged on the hollow cubic bus bar I17; for displaying and collecting the gas pressure before entering the fuel cell.

The emptying pipeline comprises a ball valve II 6, a safety valve I7, a ball valve III 14 and a safety valve II 12, and a flame arrester 20 is installed at the tail end of the emptying pipeline; the ball valve II 6 is matched with the safety valve I7 for use and is positioned between the ball valve I5 and the primary pressure reducer 8 as a branch, and the ball valve III 14 is matched with the safety valve II 12 for use and is positioned between the secondary pressure reducer 10 and the filter 13 as a branch; the ball valve II 6 and the ball valve III 14 are respectively matched with the safety valve I7 and the safety valve II 12 for use, and respectively protect pipelines and equipment before and after two-stage pressure reduction, the ball valve can realize manual emptying under emergency, and the safety valve is preset with take-off pressure and used for automatic emptying after gas overpressure.

The driving gas pipeline is connected with driving gas through a driving gas inlet port 36, an oil-water separator 37 and a hollow cubic busbar II 38 are sequentially arranged in the driving gas pipeline along the gas flowing direction, three groups of branches are respectively arranged on the hollow cubic busbar II 38, the first group of branches are connected with a pneumatic ball valve I21 through an electromagnetic valve I41, the second group of branches are connected with a pneumatic ball valve II 26 through an electromagnetic valve II 42, the third group of branches are connected with a pneumatic ball valve III 31 through an electromagnetic valve III 43, and a pressure gauge V40 and a pressure sensor III 39 are arranged on the hollow cubic busbar II 38; used for displaying and collecting the pressure data of the driving gas.

The number of the test branches can be randomly combined and selected, and each branch is completely independent and does not influence each other.

Pressure sensor I3, pressure sensor II 19, mass flowmeter I22, mass flowmeter II 27, mass flowmeter III 32, solenoid valve I41, solenoid valve II 42, solenoid valve III 43 all are connected with PLC controller 44, PLC controller 44 is connected with terminal touch-sensitive screen 45.

Mass flow meter I22 front end is connected with pneumatic ball valve I21, the rear end is connected with ball valve V23, ball valve v23 and pneumatic ball valve I21 can realize the manual and automatic break-make of test branch road, mass flow meter I22 is direct to be connected with PLC controller 44, both can with the gas data acquisition in the test branch road and feed back PLC control system and can monitor the air current condition in the test branch road simultaneously again, it uses the drive gas that air continuous for zero time cooperation PLC control system control solenoid valve I41 cuts off pneumatic ball valve I21 to close the test branch road to monitor the test branch road in a certain time to monitor the test branch road, avoid forming long-time gas accumulation at fuel cell end and cause the damage to fuel cell, all the other test branch road action principles are with this similarity, the mutual noninterfere of independent work.

PLC controller 44 and the pressure sensor in the system, mass flow meter, solenoid valve lug connection, the data among the collecting system and according to predetermineeing logic realization fuel cell test air supply system's automatic control, cooperation terminal touch-sensitive screen 45 both can be with data real-time save on the spot and show in the system, can realize remote monitoring again with data teletransmission, realize unmanned operation.

It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, it can be understood that all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An air supply system for a fuel cell test comprises a main air supply pipeline, a test branch, an emptying pipeline, a driving air pipeline, a PLC (programmable logic controller) controller (44) and a terminal touch screen (45); the device is characterized in that the front end of a main gas supply pipeline is connected with a gas source through a test gas inlet interface (1), and a one-way valve (2), a pressure sensor I (3), a pressure gauge I (4), a ball valve I (5), a primary pressure reducer (8), a secondary pressure reducer (10), a filter (13) and a hollow cubic busbar I (17) are sequentially arranged in the main gas supply pipeline along the gas circulation direction; be provided with manometer II (9) and manometer III (11) respectively on one-level decompressor (8) and second grade decompressor (10) giving vent to anger the end, be connected with gaseous buffer memory jar (16) through ball valve IV (15) between filter (13) and cavity cube busbar I (17), be provided with three groups of test branch roads side by side on cavity cube busbar I (17) gas outlet direction, first group test branch road has set gradually pneumatic ball valve I (21) along the gas flow direction, mass flow meter I (22), ball valve V (23), interface I (25) for stainless steel hose I (24) and fuel cell, and second group test branch road has set gradually pneumatic ball valve II (26), mass flow meter II (27), ball valve VI (28), stainless steel hose II (29) and interface II (30) for fuel cell along the gas flow direction, and third group test branch road has set gradually pneumatic ball valve III (31) along the gas flow direction, A mass flow meter III (32), a ball valve VII (33), a stainless steel hose III (34) and an air interface III (35) for a fuel cell; the hollow cubic busbar I (17) is provided with a pressure gauge IV (18) and a pressure sensor II (19).

2. The gas supply system for the fuel cell test according to claim 1, wherein the evacuation pipeline comprises a ball valve II (6), a safety valve I (7), a ball valve III (14) and a safety valve II (12), and a flame arrester (20) is installed at the tail end of the evacuation pipeline; the ball valve II (6) is matched with the safety valve I (7) for use and is positioned between the ball valve I (5) and the primary pressure reducer (8) as a branch, and the ball valve III (14) is matched with the safety valve II (12) for use and is positioned between the secondary pressure reducer (10) and the filter (13) as a branch.

3. The gas supply system for the fuel cell test according to claim 2, wherein the driving gas pipeline is connected with driving gas through a driving gas inlet interface (36), an oil-water separator (37) and a hollow cubic busbar II (38) are sequentially arranged in the driving gas pipeline along a gas flowing direction, three groups of branches are respectively arranged on the hollow cubic busbar II (38), the first group of branches are connected with the pneumatic ball valve I (21) through a solenoid valve I (41), the second group of branches are connected with the pneumatic ball valve II (26) through a solenoid valve II (42), the third group of branches are connected with the pneumatic ball valve III (31) through a solenoid valve III (43), and a pressure gauge V (40) and a pressure sensor III (39) are arranged on the hollow cubic busbar II (38).

4. The gas supply system for the fuel cell test according to claim 3, wherein the pressure sensor I (3), the pressure sensor II (19), the mass flow meter I (22), the mass flow meter II (27), the mass flow meter III (32), the solenoid valve I (41), the solenoid valve II (42) and the solenoid valve III (43) are all connected with a PLC (programmable logic controller) (44), and the PLC (44) is connected with a terminal touch screen (45).