A mobile test cell for a fuel cell engine

Abstract

The application provides a mobile test cabin for a fuel cell engine and belongs to the technical field of fuel cell engines, and solves the problems of site, workshop and hydrogen supply limitation and hydrogen safety in the prior art. The device comprises a gas supply container and a test container. The test container comprises a top explosion-proof box body, and is internally provided with an equipment cabin, a test cabin and a monitoring cabin. An electronic load module, a heat dissipation module and a temperature control module are installed in the equipment cabin. A gas panel, a quick docking device and a test tool vehicle are arranged in the test cabin. A monitoring computer is installed in the monitoring cabin. An intermediate cabin door is arranged between the test cabin and the equipment cabin. An observation window is arranged between the test cabin and the monitoring cabin. The gas supply container adopts a topless explosion-proof box body, and is internally provided with a hydrogen container bottle grid, a nitrogen container bottle grid and a busbar. The output ends of the hydrogen container bottle grid and the nitrogen container bottle grid are respectively connected to the busbar and the gas panel in the test container, and then supply gas to the fuel cell engine.

Description

Technical Field

[0001] This invention relates to the field of fuel cell engine technology, and in particular to a mobile test chamber for fuel cell engines. Background Technology

[0002] As the power demand and scale of fuel cell engines continue to expand, the testing requirements and scale of their testing equipment are also increasing year by year.

[0003] Existing fuel cell testing facilities suffer from limitations in terms of site, facility, and hydrogen supply, as well as hydrogen safety issues related to the fuel cell engine itself, which have consistently hindered the development of engine testing. Most existing fuel cell engine testing facilities are non-mobile, fixed structures, which are overly dependent on site, facility, and auxiliary equipment, and also raise concerns about hydrogen safety. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a mobile test chamber for fuel cell engines to solve the limitations of existing technologies in terms of site, factory, hydrogen supply, and hydrogen safety.

[0005] On one hand, embodiments of the present invention provide a mobile test chamber for a fuel cell engine, including a movable gas supply container and a movable test container; wherein,

[0006] The test container includes a covered explosion-proof body, which contains an equipment compartment, a test compartment, and a monitoring compartment. The equipment compartment is equipped with an electronic load module, a heat dissipation module, and a temperature control module. The test compartment is equipped with a gas panel, a quick docking device, and a test fixture that can carry the fuel cell engine under test. The monitoring compartment is equipped with a monitoring computer. An intermediate door is set between the test compartment and the equipment compartment. An observation window is set between the test compartment and the monitoring compartment.

[0007] The gas supply container includes an open, explosion-proof enclosure containing hydrogen and nitrogen cylinder compartments and a manifold. The outputs of the hydrogen and nitrogen cylinder compartments supply gas to the fuel cell engine under test via the manifold and the gas panel inside the test container, respectively.

[0008] The beneficial effects of the above technical solution are as follows: It provides a mobile test chamber solution for fuel cell engines, including two types of containers: a test container and a gas supply container. Both containers adopt an explosion-proof structure, with the test container having a roof and the gas supply container not having a roof. The test container is used to perform tests on the fuel cell engine under test and is equipped with a quick docking device, temperature control module, heat dissipation module, electronic load module, monitoring computer, and other equipment. It can perform vibration tests on the fuel cell engine under no-load, loaded, and unloaded operating conditions. At the same time, it can simulate different operating conditions such as hydrogen and air, enabling vibration tests under harsh conditions such as comprehensive operating states and operating environments. The explosion-proof structure ensures test safety.

[0009] Based on further improvements to the aforementioned device, both the test container and the gas supply container are equipped with explosion-proof alarm systems; and...

[0010] Both the test container and the gas supply container adopt a mobile explosion-proof container structure, and at least one outer side wall of the test container and the gas supply container is equipped with a door, as well as a ramp located outside the door and matching the position and size of the door.

[0011] The observation window is an explosion-proof observation window;

[0012] The gas supply container is also equipped with a ground auger.

[0013] Furthermore, the equipment compartment, testing compartment, and monitoring compartment inside the test container are all equipped with air conditioning and lighting; and,

[0014] The gas supply container and the test container are placed vertically or horizontally.

[0015] Furthermore, the equipment compartment contains: a source module, a main heat dissipation module, an auxiliary heat dissipation module, and a temperature control module; among which,

[0016] The power supply module further includes an electronic load module and a low-voltage power supply module; the DC side port of the electronic load module is connected to the fuel cell engine, and its AC side port is connected to the low-voltage power supply module, air conditioning, lighting equipment and plant power distribution terminal respectively; the output terminal of the low-voltage power supply module is connected to the power supply terminal of the temperature control module and the alarm system.

[0017] The main heat dissipation module and the auxiliary heat dissipation module together constitute the heat dissipation module in the equipment compartment; and the main heat dissipation module and the auxiliary heat dissipation module are respectively connected to the temperature control module through pipelines.

[0018] Furthermore, both the main and auxiliary heat dissipation modules utilize air-cooled radiators; and,

[0019] A heat dissipation vent is provided on the outer wall of the equipment compartment near the source module.

[0020] Furthermore, the test chamber is also equipped with an alarm system to monitor for excessive hydrogen concentration and excessive air temperature within the chamber; and,

[0021] During testing, the fuel cell engine under test in the test chamber is connected to the temperature control module via a quick docking device to keep the real-time temperature of the fuel cell engine under test within the set range.

[0022] The test chamber has a test chamber door on one side of the outer wall, and the entrance of the test chamber has a test chamber ramp that matches the size and position of the test chamber door.

[0023] Furthermore, the monitoring room is also equipped with a host computer, workbenches and chairs; among them,

[0024] The output of the host computer is connected to the temperature control module, the gas panel, and the control terminal of the fuel cell engine under test.

[0025] Furthermore, the gas supply container is equipped with multiple compartments for storing hydrogen cylinders; and,

[0026] The manifold inside the gas supply container is connected to the gas panel inside the test container via a metal hose.

[0027] Furthermore, it also includes the power distribution network; among which,

[0028] The host computer is used to control the electrical energy generated by the fuel cell engine under test to power the entire test container through the electronic load module during testing, and to feed back the excess electrical energy during the power supply process to the power distribution network inside the test container; and to control the power distribution network to power the entire test container when not testing.

[0029] Furthermore, the gas panel is equipped with nitrogen pipelines, hydrogen pipelines, safety valve circuits, vent pipelines, and exhaust pipelines; among which,

[0030] The upper ports of the nitrogen and hydrogen pipelines are connected to the manifold inside the gas supply container, respectively.

[0031] The nitrogen pipeline is equipped with a shut-off valve, a filter, and a pressure regulator. The lower end of the nitrogen pipeline is connected to the fuel cell engine under test to supply nitrogen to the fuel cell engine under test.

[0032] Both the hydrogen pipeline and the vent pipeline are equipped with shut-off valves; and the lower ports of both the hydrogen pipeline and the nitrogen pipeline are connected to the lower port of the vent pipeline.

[0033] A safety valve is installed on the safety valve circuit. One end of the safety valve circuit is connected to the hydrogen pipeline, and the other end is connected to the venting pipeline. The host computer is also used to monitor the gas pressure in the hydrogen pipeline and automatically open the safety valve to perform the venting operation when it detects that the gas pressure exceeds the limit.

[0034] The upper ends of the vent pipe and the tailpipe both pass through the top of the gas supply container and are directly connected to the outside atmosphere.

[0035] The lower end of the exhaust pipe is connected to the exhaust port of the fuel cell engine under test.

[0036] During the test, the host computer executes the following control program to complete the hydrogen replacement function of the fuel cell engine:

[0037] Open the shut-off valve on the nitrogen line to purge the air in the hydrogen line of the fuel cell engine to the outside of the chamber through the exhaust pipe using nitrogen.

[0038] After the nitrogen pipeline shut-off valve is opened for a set time T1, the nitrogen pipeline shut-off valve is closed, and the hydrogen pipeline shut-off valve is opened so that the air in the hydrogen pipeline of the fuel cell engine is purged to the outside of the chamber through the exhaust pipe and replaced by hydrogen.

[0039] The nitrogen pipeline shut-off valve opens for a set time T2, after which the purging is complete, fulfilling the pre-test nitrogen purging function and initiating the formal test procedure; T2 > T1; and,

[0040] After the test, the host computer executes the following control program to complete the hydrogen pipeline purging function of the fuel cell engine:

[0041] Open the shut-off valve on the vent line to release the hydrogen from the fuel cell engine to the outside of the chamber through the vent line;

[0042] After the set time T3 for opening the shut-off valve on the vent line, close the shut-off valve on the vent line and open the shut-off valve on the nitrogen line to purge the residual hydrogen in the hydrogen circuit of the fuel cell engine to the outside of the chamber through the tailpipe.

[0043] After the shut-off valve on the vent line has been open for a set time T4, close the shut-off valve on the nitrogen line to complete the purging; T4 > T3 。

[0044] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0045] 1. It adopts a movable container structure and integrates air cooling to reduce dependence on site, factory and auxiliary equipment.

[0046] 2. Independent gas cylinder compartments are used to reduce limitations on hydrogen supply, and an explosion-proof structure is adopted to improve hydrogen safety.

[0047] 3. It consists of only two containers, can be transported by truck, is easy to move, and is highly mobile.

[0048] 4. Simply connect the electronic load cable and the gas lines of the two containers to start the fuel cell engine test. It is easy to install and ready to use immediately.

[0049] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or essential features of the invention, nor is it intended to limit the scope of the invention. Attached Figure Description

[0050] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same parts.

[0051] Figure 1 A schematic diagram of the planar structure of the mobile test chamber of Embodiment 1 is shown;

[0052] Figure 2 A schematic diagram of the planar structure of the mobile test chamber of Embodiment 2 is shown. Figure 1 ;

[0053] Figure 3 A front perspective view of the mobile test chamber of Embodiment 2 is shown;

[0054] Figure 4 A three-dimensional schematic diagram of the inner surface of the mobile test chamber of Embodiment 2 is shown;

[0055] Figure 5 A schematic diagram of the circuit layout of the mobile test chamber of Embodiment 2 is shown;

[0056] Figure 6 A connection diagram of the gas panel in Example 2 is shown;

[0057] Figure 7 A schematic diagram of the planar structure of the mobile test chamber of Embodiment 2 is shown. Figure 2 ;

[0058] Figure 8 A schematic diagram of the hydrogen replacement process during the test in Example 2 is shown;

[0059] Figure 9 A schematic diagram of the hydrogen pipeline purging process after the test in Example 2 is shown;

[0060] Figure 10 A schematic diagram of the test process for Example 2 is shown.

[0061] Figure Labels

[0062] 1-Test container; 2-Gas supply container; 3-Equipment compartment; 4-Test compartment; 5-Monitoring compartment;

[0063] 6-Metal hose; 21-Hydrogen cylinder compartment; 22-Nitrogen cylinder compartment; 23-Manifold; 24-Flat wrench; 25-Gas supply container door; 26-Gas supply container ramp; 31-Source module; 32-Main heat dissipation module; 33-Auxiliary heat dissipation module; 34-Temperature control module; 35-Pipeline; 36-Heat outlet; 41-Test fixture; 42-Gas panel; 43-Alarm system;

[0064] 44-Intermediate compartment door; 45-Test compartment door; 46-Test compartment ramp; 51-Host computer; 52-Monitoring compartment door; 53-Observation window; 7-Air conditioner; 8-Lighting equipment; 421-Nitrogen pipeline; 422-Hydrogen pipeline; 423-Safety valve circuit; 424-Vent pipeline; 425-Tail exhaust pipeline. Detailed Implementation

[0065] Embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0066] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0067] Example 1

[0068] One embodiment of the present invention discloses a mobile test chamber for a fuel cell engine, such as... Figure 1 As shown, it includes two types of containers: a movable gas supply container 2 and a movable test container 1.

[0069] The test container 1 includes a covered explosion-proof container, and three compartments: an equipment compartment 3, a test compartment 4, and a monitoring compartment 5, which are located inside the covered explosion-proof container.

[0070] The equipment compartment 3 houses an electronic load module 311, a heat dissipation module, and a temperature control module 34. The electronic load module 311 is described in existing patent CN201620197706.6. The heat dissipation module can be air-cooled, water-cooled, or similar.

[0071] The test chamber 4 is equipped with a gas panel 42, a quick-connect device, and a test fixture 41 capable of carrying the fuel cell engine under test. During testing, the fuel cell engine under test in the test chamber 4 connects to the temperature control module 34 via the quick-connect device to control the real-time temperature of the fuel cell engine under test within a set range. The test fixture 41 can be referenced in patent CN218258305U.

[0072] The monitoring compartment 5 is equipped with a monitoring computer, which is used to monitor various test indicators of the fuel cell engine under test during the testing process.

[0073] An openable intermediate door 44 is provided between the test chamber 4 and the equipment chamber 3. An observation window 53 is provided between the test chamber 4 and the monitoring chamber 5.

[0074] The gas supply container 2 includes an open, explosion-proof enclosure containing hydrogen cylinder compartment 21, nitrogen cylinder compartment 22, and a manifold 23. The outputs of the hydrogen cylinder compartment 21 and nitrogen cylinder compartment 22 supply gas to the fuel cell engine under test via the manifold 23 and the gas panel 42 inside the test container 1, respectively.

[0075] Compared with existing technologies, this embodiment provides a mobile test chamber solution for fuel cell engines, including two types of containers: a test container and a gas supply container. Both containers adopt explosion-proof structures, with the test container having a roof and the gas supply container not having a roof. The test container is used to perform tests on the fuel cell engine under test and is equipped with a quick docking device, a temperature control module 34, a heat dissipation module, an electronic load module, a monitoring computer, and other equipment. It can perform vibration tests on the fuel cell engine under no-load, loaded, and unloaded operating conditions. At the same time, it can simulate different operating environments such as hydrogen and air, realizing vibration tests under harsh conditions such as comprehensive operating states and operating environments. The explosion-proof structure ensures test safety.

[0076] Example 2

[0077] Based on Example 1, improvements were made to both the test container 1 and the gas supply container 2, which are equipped with explosion-proof alarm systems, doors, and slopes that are obliquely installed on the outside of the doors and match the position and size of the doors.

[0078] Preferably, both the test container 1 and the gas supply container 2 adopt a mobile explosion-proof container structure, and at least one outer side wall of both the test container 1 and the gas supply container 2 is equipped with a door and a ramp, such as Figure 3 ,4 As shown.

[0079] Preferably, the observation window 53 is an explosion-proof observation window with an explosion-proof structure. A monitoring compartment door 52 is provided on the side wall of the monitoring compartment 5 for testing personnel to enter.

[0080] Preferably, the gas supply container 2 is also equipped with a ground jack 24, such as Figure 2 , 7 As shown.

[0081] Preferably, the equipment compartment 3, testing compartment 4, and monitoring compartment 5 within the test container 1 are all equipped with air conditioning 7 and lighting equipment 8, such as... Figure 5 As shown. Furthermore, the gas supply container 2 and the test container 1 are placed vertically or horizontally.

[0082] Preferably, the equipment compartment 3 is equipped with: a source module 31, a main heat dissipation module 32, an auxiliary heat dissipation module 33, and a temperature control module 34, such as... Figure 2 , 7 As shown.

[0083] The power supply module 31 further includes an electronic load module 311 and a low-voltage power supply module 312. The DC side port of the electronic load module 311 is connected to the fuel cell engine, and its AC side port is connected to the low-voltage power supply module 312, the air conditioner 7, the lighting equipment 8, and the plant's power distribution terminal, respectively. Figure 5 As shown, the output terminal of the low-voltage power supply module 312 is connected to the power supply terminals of the temperature control module 34 and the alarm system 43, providing them with low-voltage power.

[0084] The main heat dissipation module 32 and the auxiliary heat dissipation module 33 together constitute the heat dissipation module in the equipment compartment. The main heat dissipation module 32 and the auxiliary heat dissipation module 33 are respectively connected to the temperature control module 34 through pipes 35.

[0085] The temperature control module 34 is connected to the main heat dissipation module 32, the auxiliary heat dissipation module 33, the host computer 51, and the fuel cell engine under test. It controls the temperature of the fuel cell engine under test by controlling the main heat dissipation module 32 and the auxiliary heat dissipation module 33.

[0086] Preferably, both the main heat dissipation module 32 and the auxiliary heat dissipation module 33 use air-cooled heat sinks.

[0087] Preferably, a heat dissipation vent 36 is provided on the outer wall of the equipment compartment 3 near the source module 31.

[0088] Preferably, the test chamber 4 is also equipped with an alarm system 43 for monitoring excessive hydrogen concentration and excessive air temperature inside the chamber. Furthermore, a test chamber door 45 is provided on one side of the outer wall of the test chamber 4, and a test chamber ramp 46 matching the size and position of the test chamber door 45 is provided at the entrance of the test chamber door.

[0089] Preferably, the monitoring chamber 5 is also equipped with a host computer 51 and a work table and chairs. The output of the host computer 51 is connected to the temperature control module 34, the gas panel 42, and the control terminal of the fuel cell engine under test.

[0090] Preferably, the gas supply container is equipped with three hydrogen cylinder compartments 21 for storing hydrogen cylinders, one nitrogen cylinder compartment 22 for storing nitrogen cylinders, and a gas supply container door 25 and a gas supply container ramp 26, as shown below. Figure 4 As shown. Furthermore, the manifold 23 inside the gas supply container 2 is connected to the gas panel 42 inside the test container 1 via a metal hose 6.

[0091] Preferably, the mobile testing chamber also includes a power distribution network.

[0092] The host computer is used to control the electrical energy generated by the fuel cell engine under test to power the entire test container 1 through the electronic load module 311 during testing, and to feed back the excess electrical energy during the power supply process to the power distribution network inside the test container 1; and to control the power distribution network to power the entire test container 1 when not testing.

[0093] Preferably, the gas panel 42 is provided with a nitrogen pipeline 421, a hydrogen pipeline 422, a safety valve circuit 423, a vent pipeline 424, and a tailpipe pipeline 425, such as... Figure 6 As shown.

[0094] The upper ends of nitrogen pipeline 421 and hydrogen pipeline 422 are connected to manifold 23 inside gas supply container 2, respectively.

[0095] Nitrogen line 421 is equipped with a shut-off valve, filter, and pressure regulator. The lower port of nitrogen line 421 is connected to the fuel cell engine under test, supplying nitrogen to it. Hydrogen line 422 and vent line 424 are both equipped with shut-off valves. Furthermore, the lower ports of hydrogen line 422 and nitrogen line 421 are both connected to the lower port of vent line 424. A safety valve circuit 423 is equipped with a safety valve; one end of the safety valve circuit 423 is connected to hydrogen line 422, and the other end is connected to vent line 424. The host computer is also used to automatically open the safety valve to perform a venting operation when the gas pressure in hydrogen line 422 exceeds the limit. The upper ports of vent line 424 and exhaust line 425 both pass through the top of the gas supply container 2 and lead directly to the outside atmosphere. The lower port of exhaust line 425 is connected to the exhaust port of the fuel cell engine under test. 。

[0096] Preferably, such as Figure 10 As shown, the host computer executes the following control program steps to complete the test function of the fuel cell engine:

[0097] S1. Identify that test container 1 and gas supply container 2 are in place;

[0098] S2. Issue a prompt message to place hydrogen cylinder compartment 21 and nitrogen cylinder compartment 22 in the gas supply container and obtain user confirmation; specifically, place gas supply container ramp 26 and test chamber ramp 46, and forklift hydrogen cylinder compartment 21 and nitrogen cylinder compartment 22 into the gas supply container.

[0099] S3. Issue a prompt message to connect the pipeline and confirm with the user to ensure that the connection relationship between test container 1 and gas supply container 2 is correct; specifically, this includes: installing metal hose 6; installing gas cylinder grid connection pipe; and connecting the test chamber power distribution network to the external mains power cable;

[0100] S4. Perform pre-test checks, including gas pipeline pressure testing and power-on self-test. The power-on self-test is used to confirm that the pallet jack 24, source module 31, main heat dissipation module 32, auxiliary heat dissipation module 33, temperature control module 34, alarm system 43, host computer 51, air conditioner 7, and lighting equipment 8 are functioning normally. In addition, identify whether the pre-test check results are qualified. If qualified, proceed to step S5; otherwise, repeat step S3.

[0101] S5. Issue a prompt message for preparation before testing and obtain user confirmation; specifically, this includes: pushing the test fixture 41 with the fuel cell engine into the test chamber 4; connecting the fuel cell engine test pipeline and cable, which can be referred to the quick docking device in the existing patent CN218211925U.

[0102] S6. Perform the test, control the water circuit of the fuel cell engine under test to add water and vent, and replace hydrogen, and start the formal test process; during the test, if alarm system 43 is detected, stop the machine for maintenance. If it is a problem (fault) of the fuel cell engine, execute step S5; if it is a problem (fault) of the equipment, execute step S4.

[0103] S7. After the test, first control the program that executes the hydrogen pipeline purging function of the fuel cell engine under test, then control the program that executes the water pipeline purging function of the fuel cell, and then disconnect the test cable and pipeline.

[0104] S8. Determine whether to move the mobile test chamber; if yes, perform the following steps in sequence: disconnect the cable connecting the test chamber power grid to the external mains power; disconnect the metal hose 6; disconnect the gas cylinder compartment connection pipe; remove the hydrogen gas cylinder compartment 21 and the nitrogen gas cylinder compartment 22; retract ramps 26 and 46, and move the test container 1 and the gas supply container 2 away; if no, proceed to step S5.

[0105] Preferably, such as Figure 8As shown, in step S6, during the test, the host computer executes the following control program to complete the hydrogen replacement function of the fuel cell engine:

[0106] S61. Open the shut-off valve on the nitrogen line 421 to purge the air in the hydrogen line of the fuel cell engine through the tailpipe 425 to the outside of the chamber for replacement.

[0107] S62. After the set time T1 for opening the shut-off valve on the nitrogen line 421, close the shut-off valve on the nitrogen line 421, open the shut-off valve on the hydrogen line 422, and use hydrogen to purge the air in the hydrogen line of the fuel cell engine to the outside of the chamber through the tailpipe 425 for replacement.

[0108] S63. After the shut-off valve on nitrogen line 421 is opened for a set time T2, the purging is completed, the pre-purging function of nitrogen is completed, and the formal test procedure is started. T2 > T1.

[0109] Preferably, such as Figure 9 As shown, in step S7, after the test, the host computer executes the following control program to complete the hydrogen pipeline purging function of the fuel cell engine:

[0110] S71. Open the shut-off valve on the vent line 424 to discharge the hydrogen in the fuel cell engine to the outside of the chamber through the vent line 424;

[0111] S72. After the shut-off valve on the vent line 424 is opened for a set time T3, the shut-off valve on the vent line 424 is closed, and the shut-off valve on the nitrogen line 421 is opened. The residual hydrogen in the hydrogen line of the fuel cell engine is purged to the outside of the chamber through the tailpipe 425 using nitrogen.

[0112] S73. After the shut-off valve on the vent line 424 has been open for a set time T4, close the shut-off valve on the nitrogen line 421 to complete the purging. T4 > T3.

[0113] Preferably, in step S7, after the test, the host computer executes the following control program to complete the fuel cell water circuit purging function:

[0114] S74. The test liquid in the fuel cell engine is purged and recovered through the purge and recovery module set in the temperature control module 34.

[0115] Compared with the prior art, the mobile testing chamber provided in this embodiment has the following advantages:

[0116] 1. It adopts a movable container structure and integrates air cooling to reduce dependence on site, factory and auxiliary equipment.

[0117] 2. Independent gas cylinder compartments are used to reduce limitations on hydrogen supply, and an explosion-proof structure is adopted to improve hydrogen safety.

[0118] 3. It consists of only two containers, can be transported by truck, is easy to move, and is highly mobile.

[0119] 4. Simply connect the electronic load cable and the gas lines of the two containers to start the fuel cell engine test. It is easy to install and ready to use immediately.

[0120] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or improvements to the prior art of the embodiments, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A mobile test cell for a fuel cell engine, characterized by, Includes a movable gas supply container (2) and a movable test container (1); wherein, The test container (1) includes a roofed explosion-proof container, which contains an equipment compartment (3), a test compartment (4) and a monitoring compartment (5); the equipment compartment (3) is equipped with an electronic load module (311), a heat dissipation module and a temperature control module (34); the test compartment (4) is equipped with a gas panel (42), a quick docking device and a test tooling vehicle (41) that can carry the fuel cell engine to be tested; the monitoring compartment (5) is equipped with a monitoring computer; an intermediate door (44) is provided between the test compartment (4) and the equipment compartment (3); an observation window (53) is provided between the test compartment (4) and the monitoring compartment (5); The gas supply container (2) includes an explosion-proof box without a roof, which contains a hydrogen cylinder compartment (21), a nitrogen cylinder compartment (22) and a manifold (23); and the output ends of the hydrogen cylinder compartment (21) and the nitrogen cylinder compartment (22) supply gas to the fuel cell engine under test through the manifold (23) and the gas panel (42) in the test container (1), respectively. Both the test container (1) and the gas supply container (2) are equipped with explosion-proof alarm systems; Air conditioning (7) and lighting equipment (8) are installed in the equipment compartment (3), test compartment (4) and monitoring compartment (5) inside the test container (1); The equipment compartment (3) contains: a source module (31), a main heat dissipation module (32), an auxiliary heat dissipation module (33), and a temperature control module (34); The test chamber (4) is also equipped with an alarm system (43) for monitoring the hydrogen concentration and air temperature inside the chamber. The monitoring chamber (5) is also equipped with a host computer (51) and a work table and chairs; the output end of the host computer (51) is connected to the temperature control module (34), the gas panel (42), and the control end of the fuel cell engine under test; The mobile test chamber for the fuel cell engine also includes a power distribution network; and, during testing, the host computer controls the electrical energy generated by the fuel cell engine under test to power the entire test container (1) through the electronic load module (311), and feeds back the excess electrical energy during the power supply process to the power distribution network inside the test container (1); and, when not testing, controls the power distribution network to power the entire test container (1). The gas panel (42) is equipped with a nitrogen pipeline (421), a hydrogen pipeline (422), a safety valve circuit (423), a vent pipeline (424), and a tailpipe pipeline (425); among which, The upper ends of the nitrogen pipeline (421) and the hydrogen pipeline (422) are respectively connected to the manifold (23) inside the gas supply container (2); The nitrogen pipeline (421) is equipped with a shut-off valve, a filter, and a pressure reducer. The lower port of the nitrogen pipeline (421) is connected to the fuel cell engine under test to supply nitrogen to the fuel cell engine under test. Both the hydrogen pipeline (422) and the vent pipeline (424) are equipped with shut-off valves; and the lower ports of both the hydrogen pipeline (422) and the nitrogen pipeline (421) are connected to the lower port of the vent pipeline (424). A safety valve is installed on the safety valve circuit (423). One end of the safety valve circuit (423) is connected to the hydrogen pipeline (422), and the other end is connected to the venting pipeline (424). The host computer is also used to monitor when the gas pressure in the hydrogen pipeline (422) exceeds the limit and automatically open the safety valve to perform venting operation. The upper ends of the vent pipe (424) and the tailpipe (425) pass through the top of the gas supply container (2) and are directly connected to the outside atmosphere. The lower end of the tailpipe (425) is connected to the exhaust port of the fuel cell engine under test; and, During the test, the host computer executes the following control program to complete the hydrogen replacement function of the fuel cell engine: Open the shut-off valve on the nitrogen line (421) to purge the air in the hydrogen line of the fuel cell engine to the outside of the chamber through the tailpipe (425) using nitrogen; After the shut-off valve on the nitrogen pipeline (421) is opened for a set time T1, the shut-off valve on the nitrogen pipeline (421) is closed, and the shut-off valve on the hydrogen pipeline (422) is opened so that the air in the hydrogen pipeline of the fuel cell engine is blown out of the chamber through the tailpipe (425) for replacement. The shut-off valve on the nitrogen pipeline (421) opens after a set time T2, completing the nitrogen pre-purging function and initiating the formal test procedure; T2 > T1; and, After the test, the host computer executes the following control program to complete the hydrogen pipeline purging function of the fuel cell engine: Open the shut-off valve on the vent line (424) to vent the hydrogen in the fuel cell engine to the outside of the chamber through the vent line (424); After the shut-off valve on the vent line (424) is opened for a set time T3, the shut-off valve on the vent line (424) is closed, and the shut-off valve on the nitrogen line (421) is opened so that the residual hydrogen in the hydrogen line of the fuel cell engine is purged to the outside of the chamber through the tailpipe (425) by nitrogen. After the shut-off valve on the vent line (424) is opened for a set time T4, the shut-off valve on the nitrogen line (421) is closed to complete the purging; T4 > T3.

2. The mobile test cell for a fuel cell engine of claim 1, wherein, Both the test container (1) and the gas supply container (2) adopt a mobile explosion-proof box structure, and both the test container (1) and the gas supply container (2) are equipped with a door on at least one outer side wall, as well as a ramp located outside the door and matching the position and size of the door. The observation window (53) is an explosion-proof observation window; The gas supply container (2) is also equipped with a ground auger (24).

3. The mobile test cell for a fuel cell engine of claim 2, wherein, The gas supply container (2) and the test container (1) are placed vertically or horizontally.

4. The mobile test cell for a fuel cell engine of claim 3, wherein, The power supply module (31) further includes an electronic load module (311) and a low-voltage power supply module (312); the DC side port of the electronic load module (311) is connected to the fuel cell engine, and its AC side port is connected to the low-voltage power supply module (312), the air conditioner (7), the lighting equipment (8) and the power distribution terminal of the plant, respectively; the output terminal of the low-voltage power supply module (312) is connected to the power supply terminal of the temperature control module (34) and the alarm system (43); The main heat dissipation module (32) and the auxiliary heat dissipation module (33) together constitute the heat dissipation module in the equipment compartment; and the main heat dissipation module (32) and the auxiliary heat dissipation module (33) are respectively connected to the temperature control module (34) through pipes (35).

5. The mobile test cell for a fuel cell engine of claim 4, wherein, Both the main heat dissipation module (32) and the auxiliary heat dissipation module (33) use air-cooled heat sinks; and, A heat dissipation vent (36) is provided on the outer wall of the equipment compartment near the source module (31).

6. The mobile test cell for a fuel cell engine of claim 4 or 5, wherein, During testing, the fuel cell engine under test in the test chamber (4) is connected to the temperature control module (34) via a quick docking device to control the real-time temperature of the fuel cell engine under test within the set range; The outer side wall of the test chamber (4) is provided with a test chamber door (45), and the entrance of the door is provided with a test chamber ramp (46) that matches the size and position of the test chamber door (45).

7. The mobile test chamber for a fuel cell engine according to claim 1, characterized in that, The gas supply container is equipped with multiple hydrogen cylinder compartments (21) for storing hydrogen tanks; and, The manifold (23) inside the gas supply container (2) is connected to the gas panel (42) inside the test container (1) via a metal hose (6).

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