CN116031443A - Test platform of hydrogen production and power generation integrated reversible system - Google Patents

Abstract

The invention relates to a test platform of a hydrogen production and power generation integrated reversible system, which comprises a hydrogen supply and storage unit (comprising a hydrogen supply module working during power generation and a hydrogen storage module working during electrolysis), an oxygen supply and storage unit (comprising an oxygen supply module working during power generation and an oxygen storage module working during electrolysis), a water thermal management unit and an electrical control unit, wherein the hydrogen supply and storage unit and the oxygen supply and storage unit are respectively connected with a gas purging auxiliary unit in parallel at output ends, and the water thermal management unit is connected with the oxygen supply and storage unit. Compared with the prior art, the invention establishes a complete bidirectional closed loop test platform for testing the electric pile with the double functions of hydrogen production and power generation, not only can test the power generation performance of the electric pile, but also can test the electrolysis performance of the electric pile, is a test platform with reversible bidirectional functions (hydrogen production and power generation), and has the advantages of multifunction, high efficiency, low comprehensive cost and the like.

Description

Test platform of hydrogen production and power generation integrated reversible system

Technical Field

The invention relates to the technical field of fuel cells, in particular to a test platform of a hydrogen production and power generation integrated reversible system.

Background

Proton exchange membranes (PEM, proton exchange membrane) are a core component of Proton Exchange Membrane Fuel Cells (PEMFC), which are distinguished from membranes used in general chemical power sources, and PEMFC is capable of operating at lower temperatures, lighter and more compact than other types of Fuel cells such as Solid Oxide Fuel Cells (SOFC), and has been widely used in the aerospace, automotive and energy industries.

However, most of the current development of the fuel cell industry is focused on the use of fuel cells as power sources, and corresponding test equipment can only test the power generation function. In addition, with the development of the fuel cell industry, hydrogen production becomes a brand new direction, for example, chinese patent CN113981470a discloses a PEM hydrogen production test system and a hydrogen production test process thereof, chinese patent CN216473505U discloses a PEM hydrogen production system, and a single PEM hydrogen production process can be realized.

However, at present, no scheme and equipment capable of simultaneously realizing corresponding tests are available on the market for two reciprocal working processes of fuel cell power generation and hydrogen production.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a test platform of a hydrogen production and power generation integrated reversible system, and the existing fuel cell power generation test system is improved to realize a hydrogen production and power generation bidirectional multifunctional system, so that the hydrogen production process and the power generation process can be tested.

The aim of the invention can be achieved by the following technical scheme: the test platform of the hydrogen production and power generation integrated type reversible system comprises a hydrogen supply storage unit which is respectively connected with a system to be tested and can be independently regulated and controlled and can supply hydrogen to the outside, an oxygen supply storage unit which is respectively regulated and can supply oxygen to the outside, a water thermal management unit with self-circulation, thermal balance, heating and cooling functions and an electrical control unit, wherein the hydrogen supply storage unit and the oxygen supply storage unit are also respectively connected with a gas purging auxiliary unit, the water thermal management unit is respectively connected with the oxygen supply storage unit, the hydrogen supply storage unit and the system to be tested, the hydrogen supply storage unit comprises a hydrogen supply module working during power generation and a hydrogen storage module working during electrolysis, and the oxygen supply storage unit comprises an oxygen supply module working during power generation and an oxygen storage module working during electrolysis;

the hydrogen supply and storage unit has a bidirectional function, namely, hydrogen is supplied during power generation, and the hydrogen is collected and stored during hydrogen production by electrolysis;

the oxygen supply and storage unit has a bidirectional function, namely, oxygen or air is supplied during power generation, and the oxygen is collected and stored during hydrogen production by electrolysis;

the water heat management unit has two-way multifunctional functions, namely, cooling water supply during power generation, water collection generated by reaction, heating during low-temperature working conditions, cyclic heating during hydrogen production by electrolysis and hydrogen production water supply by electrolysis;

in addition, the water thermal management unit can supply cooling water during power generation, collect generated water through reaction, heat during low-temperature working conditions, circularly heat during electrolytic hydrogen production and supply water for electrolytic hydrogen production through two water supply loops.

Further, the system to be tested is respectively connected to a hydrogen inlet and a hydrogen outlet of the hydrogen supply storage unit, an oxygen inlet and an oxygen outlet of the oxygen supply storage unit, a water inlet and a water outlet of the water thermal management unit, and a plurality of electric and monitoring signal connection ends of the electric control unit, and the hydrogen inlet and the oxygen inlet are connected in parallel with the gas purging auxiliary unit.

Further, the hydrogen supply storage unit comprises a first storage tank for storing hydrogen, the first storage tank is connected to the system to be tested through a first pressure regulating valve, a first electromagnetic valve and a first one-way valve in a hydrogen supply line in series, the system to be tested is connected to a first gas-water separator through a first pressure relief valve and a second electromagnetic valve in a hydrogen collection loop in parallel, the first gas-water separator is connected to the first storage tank through a first drying tower and a first booster pump, a pressure sensor P and a temperature sensor T are connected between the first one-way valve and the system to be tested, the first gas-water separator is also connected with a first liquid level meter, liquid water collected at the lower part of the first gas-water separator is recycled to the water thermal management unit through an eleventh electromagnetic valve through a circulating loop interface, and the hydrogen supply storage unit further comprises a discharge channel connected to the system to be tested through a twelfth electromagnetic valve. The above functional elements or components are all provided with signal transmission and closed-loop control functions and are connected with an electric control unit, and the hydrogen supply storage unit also has the capability of providing hydrogen with different pressures.

Further, the oxygen supply storage unit comprises a second storage tank for storing oxygen, the second storage tank is connected to the system to be tested through a second pressure regulating valve, a third electromagnetic valve and a second one-way valve in an oxygen supply line in series, the system to be tested is connected to a second gas-water separator through a second pressure relief valve and a fourth electromagnetic valve in an oxygen collection loop in parallel, the second gas-water separator is connected to the second storage tank through a second drying tower and a second booster pump, a pressure sensor P and a temperature sensor T are connected between the second one-way valve and the system to be tested, the second gas-water separator is also connected with a second liquid level meter, liquid water collected at the lower part of the second gas-water separator is recycled to the water thermal management unit through a fifth electromagnetic valve through a circulation loop interface, and the oxygen supply storage unit further comprises a discharge channel connected to the system to be tested through a thirteenth electromagnetic valve. The functional elements or the components are provided with signal transmission and closed-loop control functions and are connected with an electric control unit, and the oxygen supply storage unit also has the capability of providing oxygen with different pressures.

Further, the water thermal management unit comprises a first water tank, the first water tank is connected to a second water tank through a first water pump, the second water tank is connected to a two-way water pump, the two-way water pump is used for flexibly providing cooling/heating water and electrolysis water through parallel two-way channels, the second water tank is connected with a third liquid level meter, the two-way water pump is connected to a sixth flow control valve and a seventh flow control valve which are connected in parallel, the sixth flow control valve is directly connected to a system to be tested, a first water flow meter, a temperature sensor and a pressure sensor are arranged, the seventh flow control valve is connected to an oxygen inlet of the system to be tested through a PTC heater and a third one-way valve which are connected in series, the system to be tested is connected with the second water tank through a radiator, a temperature sensor and a pressure sensor are arranged between the system to be tested and the radiator, and the second water tank is respectively connected with a liquid circulation loop interface of the first air-water separator lower part in the hydrogen supply unit and a liquid circulation loop interface of the second air-water separator lower part in the oxygen supply unit.

Further, the water thermal management unit comprises a first water tank, the first water tank is connected to a second water tank through a first water pump, the second water tank is respectively connected to an electrolytic water pump and a cooling water pump, the second water tank is connected with a third liquid level meter, and a first water flowmeter, a temperature sensor and a pressure sensor are arranged between the cooling water pump and a system to be tested; the electrolytic water pump is connected to an oxygen inlet of the system to be tested through a PTC heater and a third one-way valve which are connected in series, and is provided with a second water flowmeter and a temperature sensor; the system to be tested is connected with a second water tank through a radiator, a temperature sensor and a pressure sensor are arranged between the system to be tested and the radiator, and the second water tank is respectively connected with a circulating loop interface for collecting liquid water at the lower part of the first gas-water separator in the hydrogen supply storage unit and a circulating loop interface for collecting liquid water at the lower part of the second gas-water separator in the oxygen supply storage unit.

Further, the gas purging auxiliary unit comprises a third storage tank for storing non-combustion gas or inert gas, wherein the third storage tank is connected to a ninth electromagnetic valve and a tenth electromagnetic valve which are connected in parallel through a third pressure regulating valve, an eighth electromagnetic valve and a fourth one-way valve which are connected in series, and the ninth electromagnetic valve and the tenth electromagnetic valve are correspondingly connected to a hydrogen inlet and an oxygen inlet of a system to be tested respectively.

Further, the electric control unit comprises a control monitoring module which is respectively and interactively connected with the system to be tested, the hydrogen gas supply and storage unit, the oxygen gas supply and storage unit, the water heat management unit and the gas purging auxiliary unit.

Further, the electrical control unit further comprises a direct current power supply and a feedback load, wherein the direct current power supply and the feedback load are connected with the system to be tested, and in practical application, the direct current power supply and the feedback load can be in a two-in-one device mode.

Compared with the prior art, the invention has the following advantages:

1. the invention improves on the existing fuel cell power generation test system, and the system to be tested is respectively connected with a hydrogen supply storage unit (capable of independently regulating and externally supplying hydrogen), an oxygen supply storage unit (capable of independently regulating and externally supplying oxygen), a water thermal management unit (self-circulation and thermal balance) and a test platform electric control unit, wherein the water thermal management unit is connected with the oxygen supply storage unit and the hydrogen supply storage unit to realize multiple functions of heat supply (hydrogen production), cooling (power generation), closed-loop water supply return (hydrogen production) and water recovery (power generation), the hydrogen supply storage unit comprises a hydrogen supply module working during power generation and a hydrogen storage module working during electrolysis, the oxygen supply storage unit correspondingly comprises an oxygen supply module working during power generation and an oxygen storage module working during electrolysis, and the system to be tested can be a monolithic reversible hydrogen generation unit, a reversible electric pile or a hydrogen production power generation system comprising a electric pile. Therefore, an electrolysis loop is established, and hydrogen storage, oxygen storage and water supply are realized, so that the power generation performance of the electric pile can be tested, and the electrolysis performance of the electric pile can be tested.

2. The invention provides a water thermal management unit with self-circulation and heat balance, namely a loop for supplying electrolytic water is added to provide water needed by electrolysis of a galvanic pile, in the water thermal management unit, water in a water tank is pumped into a cathode of the galvanic pile through a water pump, a PTC heater is added in a pipeline loop behind the water pump to ensure the temperature requirement of the electrolytic water, and as input elements of the cathode of the galvanic pile are different in power generation and electrolysis, a one-way valve is respectively added at the input rear end of oxygen generated and the input rear end of the electrolyzed water, so that the two elements can not mix with each other, and the working reliability of the invention is further improved.

3. The invention is provided with the electric control unit, wherein the control monitoring module is respectively and interactively connected with the system to be tested, the hydrogen gas supply and storage unit, the oxygen gas supply and storage unit, the water heat management unit and the gas purging auxiliary unit, so that independent and flexible control of each functional unit is realized, and the use flexibility and reliability of the test platform are further improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of a hydrogen gas supply unit;

FIG. 3 is a schematic view of the structure of an oxygen supply and storage unit;

FIG. 4a is a schematic diagram of a hydrothermal management unit according to the first embodiment;

fig. 4b is a schematic structural diagram of a hydrothermal management unit in the second embodiment;

FIG. 5 is a schematic diagram of the structure of the gas purging auxiliary unit;

FIG. 6 is a schematic diagram of the structure of the electrical control unit;

FIG. 7 is a schematic diagram of a power generation flow;

FIG. 8 is a schematic diagram of a hydrogen production process;

wherein: 101. a first pressure regulating valve, 102, a second pressure regulating valve, 103, a third pressure regulating valve, 201, a first solenoid valve, 202, a second solenoid valve, 203, a third solenoid valve, 204, a fourth solenoid valve, 205, a fifth solenoid valve, 206, a sixth flow control valve, 207, a seventh flow control valve, 208, an eighth solenoid valve, 209, a ninth solenoid valve, 210, a tenth solenoid valve, 211, an eleventh solenoid valve, 212, a twelfth solenoid valve, 213, a thirteenth solenoid valve, 301, a first check valve, 302, a second check valve, 303, a third check valve, 304, a fourth check valve, 401, a first relief valve, 402, a second relief valve, 501, a first gas-water separator, 502, a second gas-water separator, 601, first level gauge, 602, second level gauge, 603, third level gauge, 701, first drying tower, 702, second drying tower, 801, first booster pump, 802, second booster pump, 901, first storage tank, 902, second storage tank, 903, third storage tank, 1001, first water pump, 1002, cooling water pump, 1003, electrolyzed water pump, 1004, two-way water pump, 111, first water tank, 112, second water tank, 121, first water flow meter, 122, second water flow meter, 13, radiator, 14, PTC heater, 15, system to be tested, 16, dc power supply, 17, feedback load, 18, control monitoring module, 19, air supply system.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples.

Embodiment one:

as shown in fig. 1, a test platform of a hydrogen production and power generation integrated reversible system comprises a hydrogen supply storage unit (which can be independently regulated and controlled and can supply hydrogen to the outside), an oxygen supply storage unit (which can be independently regulated and controlled and supply oxygen to the outside), a water thermal management unit (which has self-circulation and heat balance, has dual functions of heating and cooling) and a test platform electrical control unit, wherein the hydrogen supply storage unit and the oxygen supply storage unit are also respectively connected with a gas purging auxiliary unit, the water thermal management unit is respectively connected with the oxygen supply storage unit, the hydrogen supply storage unit and the system 15 to be tested, the hydrogen supply storage unit comprises a hydrogen supply module working during power generation and a hydrogen storage module working during electrolysis, and the oxygen supply storage unit comprises an oxygen supply module working during power generation and an oxygen storage module working during electrolysis.

The hydrogen supply and storage unit has a bidirectional function, namely, hydrogen is supplied during power generation, and the hydrogen is collected and stored during hydrogen production by electrolysis;

the oxygen supply and storage unit has a bidirectional function, namely, oxygen and air are supplied during power generation, and oxygen is collected and stored during hydrogen production by electrolysis;

the water heat management unit has two-way multifunctional functions, namely, cooling water supply during power generation, water collection generated by reaction, heating during low-temperature working conditions, cyclic heating during hydrogen production by electrolysis and hydrogen production water supply by electrolysis.

The system to be tested 15 may be a monolithic reversible hydrogen generating unit, a reversible electric pile or a hydrogen generating system including an electric pile, and the system to be tested 15 is respectively connected to a hydrogen inlet and a hydrogen outlet of the hydrogen supply and storage unit, an oxygen inlet and an oxygen outlet of the oxygen supply and storage unit, a water inlet and a water outlet of the water thermal management unit, and a plurality of electrical and monitoring signal connection ends of the electrical control unit, wherein the hydrogen inlet and the oxygen inlet are connected in parallel with the gas purging auxiliary unit.

As shown in fig. 2, the hydrogen gas supply and storage unit includes a first storage tank 901 for storing hydrogen gas, the first storage tank 901 is connected to the system to be tested 15 through a first pressure regulating valve 101, a first electromagnetic valve 201 and a first one-way valve 301 in a hydrogen supply line connected in series, the system to be tested 15 is connected to a first gas-water separator 501 through a first pressure relief valve 4 and a second electromagnetic valve 202 in a hydrogen collection loop connected in parallel, the first gas-water separator 501 is connected to the first storage tank 901 through a first drying tower 701 and a first booster pump 801, a pressure sensor P and a temperature sensor T are connected between the first one-way valve 301 and the system to be tested 15, the first gas-water separator 501 is also connected with a first liquid level gauge 601, liquid water collected at the lower part of the first gas-water separator 501 is recovered to the water thermal management unit through an eleventh electromagnetic valve 211 through a circulation loop interface, and the hydrogen gas supply and storage unit further includes a discharge channel connected to the system to be tested 15 through a twelfth electromagnetic valve 212.

As shown in fig. 3, the oxygen supply and storage unit includes a second storage tank 902 for storing oxygen, the second storage tank 902 is connected to the system to be tested 15 through a second pressure regulating valve 102, a third electromagnetic valve 203 and a second one-way valve 302 in a serial oxygen supply line, the system to be tested 15 is connected to the second gas-water separator 502 through a second pressure releasing valve 402 and a fourth electromagnetic valve 204 in a parallel oxygen collecting circuit, the second gas-water separator 502 is connected to the second storage tank 902 through a second drying tower 702 and a second booster pump 802, a pressure sensor P and a temperature sensor T are connected between the second one-way valve 302 and the system to be tested 15, the second gas-water separator 502 is also connected to a second liquid level meter 602, liquid water collected at the lower part of the second gas-water separator 502 is recovered to the hydrothermal management unit through a fifth electromagnetic valve 205 through a circulation loop interface, and the oxygen supply and storage unit further includes a discharge channel connected to the system to be tested 15 through a thirteenth electromagnetic valve 213.

The hydrogen supply and storage unit is divided into a hydrogen supply module during power generation and a hydrogen storage module during electrolysis, hydrogen generated during electrolysis is separated from water by a first gas-water separator 501 and then is further dried, and the dried hydrogen is pressurized by a first booster pump 801 and then is filled into a first storage tank 901 or is directly supplied to a pipeline for use. In practical application, the dashed box in fig. 2 can be simplified to optional configuration, that is, the hydrogen generated by electrolysis is directly discharged without compression storage.

For the oxygen supply and storage unit, the oxygen supply and storage unit is divided into an oxygen supply module during power generation and an oxygen storage module during electrolysis, oxygen generated during electrolysis is separated by a second gas-water separator 502 and then is further dried, the dried oxygen is pressurized by a second booster pump 802 and then is filled into a second storage tank 902 or is directly supplied to a pipeline for use, and an electrolyzed water circulation interface at the lower part of the second gas-water separator 502 in the oxygen supply and storage unit is connected to the hydrothermal management unit through a fifth electromagnetic valve 205. In practical application, the dashed box in fig. 3 can be simplified to optional configuration, that is, the oxygen generated by electrolysis is directly discharged instead of being stored in a compressed state.

In addition, in practical application, the oxygen supply and storage unit may further include an air supply system 19 (such as an air compressor), so that the purpose of supplying oxygen in parallel can be achieved together with the second storage tank 902 for storing oxygen, that is, pure oxygen in the second storage tank 902 or oxygen components (from the air supply system 19) in air can be used in the power generation of the reversible electric pile, and the pure oxygen or air can be flexibly supplied to the reversible system according to different designs of the reversible hydrogen production power generation system.

In this embodiment, as shown in fig. 4a, the water thermal management unit includes a first water tank 111, the first water tank 111 is connected to a second water tank 112 through a first water pump 1001, the second water tank 112 is connected to a third liquid level meter 603, the second water tank 112 is respectively connected to an electrolyzed water pump 1003 and a cooling water pump 1002, the second water tank 112 is respectively connected to a circulation loop interface for collecting liquid water at the lower part of the first gas-water separator 501 in the hydrogen supply storage unit and a circulation loop interface for collecting liquid water at the lower part of the second gas-water separator 502 in the oxygen supply storage unit, and a first water flowmeter 121, a temperature sensor T and a pressure sensor P are arranged between the cooling water pump 1002 and the system 15 to be tested; the electrolyzed water pump 1003 is connected to the oxygen inlet of the system to be tested 15 through the PTC heater 14 and the third check valve 303 connected in series, and is provided with the second water flow meter 122 and the temperature sensor T; the system to be tested 15 is connected with the second water tank 112 through the radiator 13, and a temperature sensor T and a pressure sensor P are arranged between the system to be tested 15 and the radiator 13.

The water thermal management unit comprises an independent electrolyzed water pump 1003, and for the same reversible electric pile, the supply amount of the cooling water during power generation and the supply amount of the electrolyzed water required during electrolysis are often different, and the water thermal management unit adopts two independently working water pumps to more accurately control the supply amounts of water with different functions.

Further, as shown in fig. 5, the gas purging auxiliary unit includes a third tank 903 for storing a non-combustion gas or an inert gas (such as nitrogen), the third tank 903 is connected to a ninth electromagnetic valve 209 and a tenth electromagnetic valve 210 connected in parallel through a third pressure regulating valve 103, an eighth electromagnetic valve 208, and a fourth check valve 304 connected in series, the ninth electromagnetic valve 209 and the tenth electromagnetic valve 210 are correspondingly connected to a hydrogen inlet and an oxygen inlet, respectively, of the system 15 to be tested, and a purging function and a protection function of the entire system are realized by the gas purging auxiliary unit.

As shown in fig. 6, the electrical control unit includes a control monitoring module 18, the control monitoring module 18 is interactively connected with the system 15 to be tested, the hydrogen supply unit, the oxygen supply unit, the water thermal management unit, and the gas purging auxiliary unit, the electrical control unit further includes a dc power supply 16 and a feedback load 17, the dc power supply 16 and the feedback load 17 are both connected with the system 15 to be tested, and the dc power supply 16 and the feedback load 17 may be two-in-one devices. The control monitoring module 18 is implemented based on the prior art, and the data information and control signals collected by the control monitoring module 18 include a CVM (Cell Voltage Monitor, battery voltage detection) signal, a water replenishment pump signal, an SOV (Solenoid Operated Valve, solenoid valve) signal, pressure data, temperature data, a PTC (Positive Temperature Coefficient ) heating signal, a PC signal, a radiator fan signal, a cooling water pump signal, and a booster pump signal. Therefore, each functional unit in the whole test platform is connected to the electric control unit through a control signal (wired or wireless), and is provided with an independent control interface to be controlled and operated by the electric control unit, wherein the gas purging auxiliary unit is controlled by a unidirectional function, and other functional units are controlled by a bidirectional function.

Fig. 7 and 8 are schematic diagrams of a power generation flow and a hydrogen production flow, respectively, and during power generation, as shown in fig. 7, a corresponding control signal is sent by an electrical control unit to drive relevant devices in a hydrogen supply and storage unit respectively, and the relevant devices at least comprise a second pressure regulating valve 102, a second electromagnetic valve 202, a twelfth electromagnetic valve 212 and the like, so as to supply hydrogen to the system 15 to be tested; driving the relevant devices in the oxygen supply and storage unit, including at least the second pressure regulating valve 102, the third electromagnetic valve 203, the thirteenth electromagnetic valve 213, etc.; meanwhile, relevant devices in the hydrothermal management unit are driven to at least comprise a radiator 13, a cooling water pump 1002, a first water flowmeter 121, a second water flowmeter 122 and the like, so that the system to be tested 15 is driven to enter a power generation mode; and driving the gas purging auxiliary unit (at least including a third pressure regulating valve 103, an eighth electromagnetic valve 208, a ninth electromagnetic valve 209, a tenth electromagnetic valve 210, etc.) to purge the hydrogen gas supply and storage unit and the oxygen gas supply and storage unit when necessary;

when hydrogen is produced, as shown in fig. 8, corresponding control signals are sent out through the electric control unit to respectively drive relevant devices in the hydrogen supply and storage unit, wherein the relevant devices at least comprise a second electromagnetic valve 202, a first gas-water separator 501, a first liquid level meter 601, an eleventh electromagnetic valve 211, a first booster pump 801 and the like; driving relevant devices in the oxygen supply and storage unit at least comprises a fourth electromagnetic valve 204, a second gas-water separator 502, a second liquid level meter 602, a fifth electromagnetic valve 205, a second booster pump 802 and the like; meanwhile, relevant devices in the hydrothermal management unit are driven to at least comprise a first water pump 1001, a third liquid level meter 603, a PTC heater 14, an electrolyzed water pump 1003 and the like, so that the system to be tested 15 is driven to enter an electrolysis hydrogen production mode; and drives the gas purge auxiliary unit (including at least the third pressure regulating valve 103, the eighth solenoid valve 208, the ninth solenoid valve 209, the tenth solenoid valve 210, and the like) to purge the hydrogen gas supply unit and the oxygen gas supply unit as needed.

Therefore, the technical scheme is improved and perfected on the basis of the original fuel cell power generation test function, and the purposes of testing the power generation function of the electric pile and the electrolysis performance of the electric pile in the same system are achieved by adding some parts.

According to the technical scheme, electrolytic parts are added on the power generation test function of the original fuel cell, so that an electrolytic loop is established, and a hydrogen storage unit, an oxygen storage unit and a most critical water supply unit are formed.

The system flow adds a loop for supplying electrolytic water to the cathode inlet of the electric pile to supply water needed by the electrolysis of the electric pile. The water in the water tank is pumped into the cathode of the electric pile through the water pump, the PTC heating is added in the pipeline loop behind the water pump to ensure the temperature requirement of the electrolyzed water, and as the input elements of the cathode are different in power generation and electrolysis, a one-way valve is respectively added at the input end of the generated oxygen and the input rear end of the electrolyzed water to ensure that the two elements cannot mix with each other.

The hydrogen generated by electrolysis can be used for self power generation, and can be transported by a pipeline at present and used as a temporary storage tank for product sales.

Embodiment two:

in this embodiment, as shown in fig. 4b, the water thermal management unit includes a first water tank 111, the first water tank 111 is connected to a second water tank 112 through a first water pump 1001, the second water tank 112 is connected to a two-way water pump 1004, the second water tank 112 is connected to a third liquid level meter 603, the second water tank 112 is respectively connected to a circulation loop interface for collecting liquid water at a lower portion of a first gas-water separator 501 in the hydrogen supply unit, a circulation loop interface for collecting liquid water at a lower portion of a second gas-water separator 502 in the oxygen supply unit, the single two-way water pump 1004 is connected to a sixth flow control valve 206 (for providing cooling or heating water) and a seventh flow control valve 207 (for providing electrolysis water) in parallel, wherein the sixth flow control valve 206 is directly connected to the system to be tested 15, and is provided with a first water flow meter 121, a temperature sensor T and a pressure sensor P, the seventh flow control valve 207 is connected to an oxygen inlet of the system to be tested 15 through a PTC heater 14 in series, a third one-way valve 303, and is provided with a second water flow meter 122 and a temperature sensor T, the system to be tested 15 is connected to the second water meter 112 through a radiator 13 and a pressure sensor P, and the temperature sensor P is provided between the system to be tested 15 and the radiator 13 and the radiator 112. Thus, the hydrothermal management unit of this embodiment can realize water supply requirements of different functions through a single two-way water pump 1004 and two flow control valves (206 and 207).

In summary, by improving the fuel cell power generation system, the technical scheme can test the electrolytic hydrogen production process and the power generation process in the same system, and realize the most functionality on the basis of the least components.

According to the technical scheme, long waiting time for research and development of equipment manufacturers and long supply period are not needed, the original fuel cell power generation test equipment can be directly modified, the time is short, and the matching degree is high;

according to the technical scheme, two functions of a set of equipment are realized through transformation, so that the economic cost is optimized, wherein the cost of the transformed equipment is mainly the purchase cost and the construction cost of parts, and the two costs are far lower than that of newly purchased equipment;

according to the technical scheme, the power generation and electrolysis functions are realized through transformation, the occupied area can be greatly saved in space, and the functions of two systems are realized by one system.

Claims (10)

1. The test platform of the hydrogen production and power generation integrated reversible system is characterized by comprising a hydrogen supply and storage unit which is respectively connected with a system (15) to be tested and can independently regulate and control hydrogen and supply hydrogen to the outside, an oxygen supply and storage unit which can independently regulate and control oxygen and supply oxygen to the outside, a water thermal management unit with double functions of self circulation, thermal balance, heating and cooling and an electric control unit, wherein the hydrogen supply and storage unit and the oxygen supply and storage unit are respectively connected with a gas purging auxiliary unit, the water thermal management unit is respectively connected with the oxygen supply and storage unit, the hydrogen supply and storage unit and the system (15) to be tested, the hydrogen supply and storage unit comprises a hydrogen supply module which works during power generation and a hydrogen storage module which works during electrolysis, and the oxygen supply and storage unit comprises an oxygen supply module which works during power generation, and the system (15) to be tested is particularly a single-chip reversible hydrogen production power generation unit, a reversible electric pile or a hydrogen production power generation system comprising an electrolysis pile;

the hydrogen supply and storage unit has a bidirectional function, namely, hydrogen is supplied during power generation, and the hydrogen is collected and stored during hydrogen production by electrolysis;

the oxygen supply and storage unit has a bidirectional function, namely, oxygen or air is supplied during power generation, and oxygen is collected and stored during hydrogen production by electrolysis;

the water thermal management unit has two-way multifunctional functions, namely cooling water supply during power generation, water collection generated by reaction, heating during low-temperature working conditions, cyclic heating during hydrogen production by electrolysis and hydrogen production water supply by electrolysis.

2. The test platform of the hydrogen production and power generation integrated reversible system is characterized by comprising a hydrogen supply and storage unit which is respectively connected with a system (15) to be tested and can independently regulate and control hydrogen and supply hydrogen to the outside, an oxygen supply and storage unit which can independently regulate and control oxygen and supply oxygen to the outside, a water thermal management unit with double functions of self circulation, thermal balance, heating and cooling and an electric control unit, wherein the hydrogen supply and storage unit and the oxygen supply and storage unit are respectively connected with a gas purging auxiliary unit, the water thermal management unit is respectively connected with the oxygen supply and storage unit, the hydrogen supply and storage unit and the system (15) to be tested, the hydrogen supply and storage unit comprises a hydrogen supply module which works during power generation and a hydrogen storage module which works during electrolysis, and the oxygen supply and storage unit comprises an oxygen supply module which works during power generation, and the system (15) to be tested is particularly a single-chip reversible hydrogen production power generation unit, a reversible electric pile or a hydrogen production power generation system comprising an electrolysis pile;

the hydrogen supply and storage unit has a bidirectional function, namely, hydrogen is supplied during power generation, and the hydrogen is collected and stored during hydrogen production by electrolysis;

the oxygen supply and storage unit has a bidirectional function, namely, oxygen or air is supplied during power generation, and oxygen is collected and stored during hydrogen production by electrolysis;

the water thermal management unit has a bidirectional multifunctional function, and is used for supplying cooling water during power generation, collecting generated water through reaction, heating during low-temperature working conditions, circulating heating during electrolytic hydrogen production and supplying hydrogen through electrolytic hydrogen production through two water supply loops.

3. The test platform of a hydrogen production and power generation integrated reversible system according to claim 1 or 2, characterized in that the system (15) to be tested is connected to a hydrogen inlet and a hydrogen outlet of a hydrogen supply and storage unit, an oxygen inlet and an oxygen outlet of an oxygen supply and storage unit, a water inlet and a water outlet of a water thermal management unit, a plurality of electrical and monitoring signal connection ends of an electrical control unit, and the hydrogen inlet and the oxygen inlet are connected in parallel with a gas purging auxiliary unit.

4. The test platform of the integrated hydrogen production and power generation reversible system according to claim 1 or 2, wherein the hydrogen supply storage unit comprises a first storage tank (901) for storing hydrogen, the first storage tank (901) is connected to the system (15) to be tested through a first pressure regulating valve (101), a first electromagnetic valve (201) and a first one-way valve (301) in a serial hydrogen supply line, the system (15) to be tested is connected to a first gas-water separator (501) through a first pressure relief valve (401) and a second electromagnetic valve (202) in a parallel hydrogen collection loop, the first gas-water separator (501) is connected to the first storage tank (901) through a first drying tower (701) and a first booster pump (801), a pressure sensor P and a temperature sensor T are connected between the first one-way valve (301) and the system (15) to be tested, the first gas-water separator (501) is also connected with a first liquid level meter (601), liquid water collected at the lower part of the first gas-water separator (501) is connected to the first gas-water separator (501) through an eleventh electromagnetic valve (211) through a circulation loop interface, and the first gas-water separator (501) is connected to the system (212) to be tested through a second electromagnetic valve, and the first gas-water management unit is further connected to the system (15) to be tested through a recovery channel.

5. The test platform of the integrated hydrogen production and power generation reversible system according to claim 1 or 2, wherein the oxygen supply storage unit comprises a second storage tank (902) for storing oxygen, the second storage tank (902) is connected to the system (15) to be tested through a second pressure regulating valve (102), a third electromagnetic valve (203) and a second one-way valve (302) in an oxygen supply loop connected in series, the system (15) to be tested is connected to a second gas-water separator (502) through a second pressure relief valve (402) and a fourth electromagnetic valve (204) in an oxygen collection loop connected in parallel, the second gas-water separator (502) is connected to the second storage tank (902) through a second drying tower (702) and a second booster pump (802), a pressure sensor P and a temperature sensor T are connected between the second one-way valve (302) and the system (15) to be tested, the second gas-water separator (502) is further connected to a second liquid level gauge (602), liquid water collected at the lower part of the second gas-water separator (502) is connected to the system (15) to be tested through a fifth thermal management unit (213) through a circulation loop interface, and the system to be tested further comprises a thirteenth recovery unit.

6. The test platform for a hydrogen production and power generation integrated reversible system according to claim 1, wherein the water thermal management unit comprises a first water tank (111), the first water tank (111) is connected to a second water tank (112) through a first water pump (1001), the second water tank (112) is connected to a two-way water pump (1004), the two-way water pump (1004) is flexibly provided with cooling/heating water and electrolysis water through parallel two-way, the second water tank (112) is connected with a third liquid level meter (603), the two-way water pump (1004) is connected to a sixth flow control valve (206) and a seventh flow control valve (207) which are connected in parallel, the sixth flow control valve (206) is directly connected to a system to be tested (15), and is provided with a first water flow meter (121), a temperature sensor and a pressure sensor, the seventh flow control valve (207) is connected to an oxygen inlet of the system to be tested (15) through a PTC heater (14) connected in series, a third one-way valve (303) is provided with a second water flow meter (122) and a temperature sensor, the system to be tested (15) is provided with a pressure sensor (13) connected between the system to be tested (13) and the radiator (13) through the radiator (13), the second water tank (112) is respectively connected with a circulation loop interface for collecting liquid water at the lower part of the first gas-water separator (501) in the hydrogen supply storage unit and a circulation loop interface for collecting liquid water at the lower part of the second gas-water separator (502) in the oxygen supply storage unit.

7. The test platform of the integrated hydrogen production and power generation reversible system according to claim 2, characterized in that the water thermal management unit comprises a first water tank (111), the first water tank (111) is connected to a second water tank (112) through a first water pump (1001), the second water tank (112) is respectively connected to an electrolytic water pump (1003) and a cooling water pump (1002), the second water tank (112) is connected with a third liquid level meter (603), and a first water flow meter (121), a temperature sensor and a pressure sensor are arranged between the cooling water pump (1002) and the system (15) to be tested; the electrolyzed water pump (1003) is connected to an oxygen inlet of the system (15) to be tested through a PTC heater (14) and a third one-way valve (303) which are connected in series, and is provided with a second water flowmeter (122) and a temperature sensor; the system to be tested (15) is connected with a second water tank (112) through a radiator (13), a temperature sensor and a pressure sensor are arranged between the system to be tested (15) and the radiator (13), and the second water tank (112) is respectively connected with a circulating loop interface for collecting liquid water at the lower part of a first gas-water separator (501) in a hydrogen supply storage unit and a circulating loop interface for collecting liquid water at the lower part of a second gas-water separator (502) in an oxygen supply storage unit.

8. The test platform of the integrated hydrogen production and power generation reversible system according to claim 1 or 2, characterized in that the gas purging auxiliary unit comprises a third storage tank (903) for storing non-combustion gas or inert gas, the third storage tank (903) is connected to a ninth electromagnetic valve (209) and a tenth electromagnetic valve (210) which are connected in parallel through a third pressure regulating valve (103), an eighth electromagnetic valve (208) and a fourth one-way valve (304) which are connected to a hydrogen inlet and an oxygen inlet of the system (15) to be tested respectively, and the ninth electromagnetic valve (209) and the tenth electromagnetic valve (210) are connected to the hydrogen inlet and the oxygen inlet of the system to be tested respectively.

9. The test platform of a hydrogen production and power generation integrated reversible system according to claim 1 or 2, wherein the electrical control unit comprises a control monitoring module (18), and the control monitoring module (18) is respectively and interactively connected with a system (15) to be tested, a hydrogen gas supply and storage unit, an oxygen gas supply and storage unit, a water heat management unit and a gas purging auxiliary unit.

10. The test platform of a hydrogen production and power generation integrated reversible system according to claim 9, wherein the electrical control unit further comprises a direct current power supply (16) and a feedback load (17), and the direct current power supply (16) and the feedback load (17) are connected with a system (15) to be tested.

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