Offline rapid detection rack for hydrogen fuel cell air compressor

Abstract

The utility model discloses a hydrogen fuel cell air compressor offline rapid detection rack which comprises a rack, an air compressor and an intercooler. The rack is divided into an upper layer, a middle layer and a lower layer; a mounting station is arranged on the upper layer of the rack; the middle layer of the rack is provided with an installation operation test table board; the air compressor is mounted through the mounting station and is positioned below the mounting station; two ends of the air compressor are a vortex end and a pressing end respectively; a vortex end of the air compressor is provided with a first quick connection port and a second quick connection port; an air filtering unit and a directional air outlet quick connector are arranged at the pressing end of the air compressor; the intercooler is arranged on the lower layer of the rack; the directional air outlet quick connector is connected with the intercooler through a test loop connecting pipe, and the intercooler is connected with the first quick connector port through a test loop connecting pipe. According to the off-line rapid detection rack for the hydrogen fuel cell air compressor, the detection unit, the control circuit and the execution mechanism are arranged in a limited space in a high-density manner by adopting a modular integrated framework, so that the occupied area of equipment is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of performance testing of hydrogen fuel cell air compressors, and specifically relates to a rapid testing bench for hydrogen fuel cell air compressors after they are put into operation. Background Technology

[0002] Currently, the air compressor, as a core component of hydrogen fuel cells, directly impacts stack efficiency and system lifespan. However, the industry lacks a standardized solution for rapid testing benches. Traditional testing methods suffer from low efficiency, incomplete parameter coverage, and insufficient accuracy in dynamic response testing, making it difficult to meet the demands of rapid product iteration. Developing an efficient testing platform requires overcoming technical bottlenecks such as multi-condition simulation, real-time data acquisition, and adaptive load control. Furthermore, the lack of a unified testing and evaluation system hinders industry collaboration. Constructing an integrated and intelligent rapid testing system has become a crucial step in improving product reliability and driving industrialization.

[0003] As the core drive unit of a hydrogen fuel cell power system, the air compressor is a key energy-consuming unit in the air supply subsystem. It needs to meet the dynamic balance requirements of the cathode oxygen concentration of the fuel cell stack through dynamic air volume regulation and precise pressure control. With the evolution of hydrogen energy systems towards higher power density, the air compressor's pressure ratio requirement has exceeded 3.0 bar, and the flow rate range has expanded to the 400 g / s level. Its parasitic power consumption accounts for more than 25% of the system's auxiliary power consumption. However, current high-power models generally face the risk of surge instability under critical operating threshold conditions, making it urgent to build a full life cycle reliability verification system.

[0004] Unsteady operation of the air compressor will directly cause imbalance in the hydrothermal management of the proton exchange membrane, leading to system output fluctuations and an exponential increase in operation and maintenance costs. Therefore, it is necessary to establish a simulated testing environment that integrates a multi-dimensional testing system (covering wide-range operating condition adaptability, operating parameter calibration, and durability degradation characteristics). Utility Model Content

[0005] Purpose of the utility model: To overcome the above shortcomings, the purpose of this utility model is to provide a rapid testing bench for hydrogen fuel cell air compressors. This bench achieves a miniaturized layout, employing a modular integrated architecture to densely arrange the testing unit, control circuit, and actuator within a limited space, effectively reducing the equipment's footprint. The inclusion of several quick-connect ports enables rapid assembly and disassembly, allowing for quick switching and configuration of functional modules according to different operating conditions during testing. Compared to traditional testing benches, the testing cycle is significantly shortened, increasing per capita throughput while greatly reducing the learning cost for users.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a rapid testing bench for hydrogen fuel cell air compressors, comprising a bench, an air compressor, and an intercooler. The bench is divided into three layers: upper, middle, and lower. The upper layer of the bench has an installation station; the middle layer of the bench has an installation operation test surface. The air compressor is installed via the installation station and is located below the installation station. The air compressor has a vortex end and a pressure end at its two ends. The vortex end of the air compressor has a first quick-connect port and a second quick-connect port. The pressure end of the air compressor has an air filter unit and a directional air outlet quick-connect. The intercooler is located on the lower layer of the bench. The directional air outlet quick-connect is connected to the intercooler, and the intercooler is connected to the first quick-connect port, all via test circuit connecting pipes. The upper installation station provides stable and reliable installation conditions for the air compressor; the middle installation operation test platform provides operators with a centralized operating area, facilitating various tests and adjustments, reducing the frequency of operators moving back and forth between different parts of the equipment, and improving work efficiency; the intercooler is located on the lower layer of the platform and is connected to the pressure end of the air compressor through a test circuit connection pipe, which can ensure that the compressed air is fully cooled when passing through the intercooler, improve the cooling effect, and thus extend the service life of the air compressor.

[0007] Furthermore, the directional exhaust quick-connect, intercooler, and first quick-connect port, together with the test circuit connecting pipe, form a closed-loop test circuit; the air filter unit is used for air intake, and the second quick-connect port is used for exhaust. The closed-loop test circuit can reduce gas waste during the test and lower operating costs; at the same time, the design of several quick-connect ports reduces test preparation and disassembly time, improving test efficiency.

[0008] Furthermore, it also includes an exhaust pipe, which is connected to the air compressor via a second quick-connect port, with the other end located on the top of the stand. Positioning the other end of the exhaust pipe on the top of the stand allows for natural convection, enabling the heat inside the exhaust pipe to be quickly dissipated into the surrounding environment, reducing heat accumulation inside the equipment and improving cooling efficiency.

[0009] Furthermore, a back pressure valve is provided at the end of the exhaust pipe furthest from the air compressor. The back pressure valve can automatically adjust the pressure inside the exhaust pipe according to actual needs, preventing the air compressor from running excessively when not needed.

[0010] Furthermore, the air compressor is also equipped with several quick-connect fittings for cooling media. These quick-connect fittings are compatible with various cooling media, enabling the air compressor to adapt to different cooling requirements and operating conditions. They also allow the air compressor to be easily connected to different cooling systems or equipment, facilitating the expansion of its cooling performance.

[0011] Furthermore, a wiring harness interface is provided next to the installation and operation test bench. The proximity of the wiring harness interface to the operation test bench makes the wiring path simpler, and the wiring harness can be directly led out from the interface to the test bench, reducing the detours and crossings of the wiring harness inside the equipment, and reducing the complexity and cost of wiring.

[0012] Furthermore, a standard mounting position for the controller is provided on the lower layer of the test bench, away from the intercooler. The intercooler generates heat during operation; mounting the controller away from the intercooler avoids the controller being affected by the heat generated during intercooler dissipation, thereby reducing the risk of controller malfunction due to high temperatures.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0014] 1. This utility model provides a rapid testing bench for hydrogen fuel cell air compressors, which achieves a miniaturized layout of the device. It adopts a modular integrated architecture to arrange the testing unit, control circuit and actuator in a limited space with high density, effectively reducing the equipment footprint.

[0015] 2. This utility model provides a rapid testing bench for hydrogen fuel cell air compressors after production. Through the setting of several quick-connect ports, it realizes rapid disassembly and assembly. During the testing process, the functional modules can be quickly switched and configured according to different working conditions.

[0016] 3. This utility model provides a rapid testing bench for hydrogen fuel cell air compressors after production. Compared with traditional testing benches, the testing cycle is greatly shortened, which increases the throughput per person while significantly reducing the learning cost for users. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a rapid testing bench for hydrogen fuel cell air compressors according to the present invention.

[0018] In the picture:

[0019] 1-Bench; 11-Installation station; 12-Installation operation test bench; 13-Test circuit connection pipe; 14-Exhaust pipe; 15-Wire harness interface; 16-Controller standard mounting position;

[0020] 141 - Back pressure valve;

[0021] 2-Air compressor; 21-Scroll end; 22-Pressure end; 23-Quick-connector for cooling medium;

[0022] 211 - First quick-connect port; 212 - Second quick-connect port; 221 - Air filter unit; 222 - Directional air outlet quick-connect;

[0023] 3-Intercooler. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0025] In this embodiment, as Figure 1 This utility model discloses a rapid testing bench for hydrogen fuel cell air compressors, comprising a bench 1, an air compressor 2, and an intercooler 3. The bench 1 is divided into three layers: upper, middle, and lower. The upper layer of the bench 1 has an installation station 11. The middle layer of the bench 1 has an installation operation test surface 12. The air compressor 2 is installed through the installation station 11 and is located below the installation station 11. The two ends of the air compressor 2 are a vortex end 21 and a pressure end 22, respectively. The vortex end 21 of the air compressor 2 has a first quick-connect port 211 and a second quick-connect port 212. The pressure end 22 of the air compressor 2 has an air filter unit 221 and a directional air outlet quick connector 222. The intercooler 3 is located on the lower layer of the bench 1. The directional air outlet quick connector 222 is connected to the intercooler 3, and the intercooler 3 is connected to the first quick-connect port 211, both through a test circuit connecting pipe 13.

[0026] Specifically, the upper, middle, and lower layers of the test bench 1 are structurally isolated by built-in reinforced aluminum alloy plates; the installation station 11 is equipped with a manual locking mechanism and a standard interface matrix as a preferred option, and integrates a high-precision air intake filter and a temperature compensation module; a laser alignment sensor can also be added to the installation station 11 to detect whether the air compressor 2 is installed in place; the vertical layout of the upper, middle, and lower layers of the test bench 1 reduces the equipment footprint to 1.8m³, which is 40% less space occupied than traditional test benches; at the same time, the cooperation of several quick-connect ports shortens the installation time of a single air compressor 2 under test to within 90 seconds, and reduces manual operation steps by 60%.

[0027] In this embodiment, as Figure 1 The directional air outlet quick connector 222, the intercooler 3, and the first quick connector port 211, together with the test circuit connecting pipe 13, form a closed-loop test circuit; the air filter unit 221 is used for air intake, and the second quick connector port 212 is used for exhaust.

[0028] Specifically, both the first quick-connect port 211 and the second quick-connect port 212 are equipped with pressure-temperature composite sensors as a preferred option, enabling simultaneous measurement of pressure and temperature at the quick-connect port.

[0029] In particular, the maximum cooling temperature difference between the inlet and outlet air temperatures of intercooler 3 can reach 100°C.

[0030] In this embodiment, as Figure 1 It also includes an exhaust pipe 14, which is connected to the air compressor 2 via a second quick-connect port 212, and the other end is located on the top of the stand 1.

[0031] Specifically, an aluminum alloy exhaust pipe with a diameter of 65mm is preferred for exhaust pipe 14.

[0032] In this embodiment, as Figure 1 The exhaust pipe 14 is provided with a back pressure valve 141 at the end away from the air compressor 2.

[0033] Specifically, a pressure sensor array can be added to the side of the back pressure valve 141 as a preferred option; the back pressure valve 141 and the pressure sensor array are connected in parallel with the exhaust pipe 14 to achieve flow channel integration; the inner wall of the exhaust pipe 14 can adopt a spiral guide groove structure design as a preferred option.

[0034] In this embodiment, as Figure 1 The air compressor 2 is also provided with several quick-connect fittings 23 for cooling media.

[0035] Specifically, the cooling medium quick connector 23 preferably uses a dual channel of cooling water and cooling air, and the connector end face is provided with an O-ring for sealing.

[0036] In this embodiment, as Figure 1 The installation operation test platform 12 is provided with a wire harness interface 15 on the side.

[0037] Specifically, each interface within the harness interface 15 can be equipped with an indicator light to display the connection and communication status of the interface.

[0038] In this embodiment, as Figure 1 The lower layer of the test stand 1 is provided with a standard mounting position 16 for the controller on the side away from the intercooler 3.

[0039] Specifically, the controller standard mounting position 16 adopts a four-hole bolt fixing structure, and USBCAN is selected as a preferred method for communication with the host computer.

[0040] The working principle of the above embodiments is as follows:

[0041] This utility model discloses a rapid testing bench for hydrogen fuel cell air compressors. After the air compressor 2 to be tested is installed at the installation station 2, the air filter unit 221 is first connected to the air inlet of the air compressor 2. Then, in conjunction with the test circuit connecting pipe 13, the directional air outlet quick connector 222, the intercooler 3 and the first quick connector port 211 are connected in sequence to form a closed-loop test circuit. At the same time, the cooling medium quick connector 23 is synchronously connected to the external water-cooled unit and the air-cooled supply system, and the cooling mode can be automatically switched according to the real-time operating conditions.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A rapid testing bench for hydrogen fuel cell air compressors after production line completion, characterized in that: include: The test bench (1) is divided into three layers: upper, middle and lower. The upper layer of the test bench (1) is provided with an installation station (11). The middle layer of the test bench (1) is provided with an installation operation test surface (12). An air compressor (2) is installed via an installation station (11) and is located below the installation station (11); the air compressor (2) has a vortex end (21) and a pressure end (22) at its two ends. The air compressor (2) has a first quick-connect port (211) and a second quick-connect port (212) at the volute end (21); the air compressor (2) has an air filter unit (221) and a directional air outlet quick-connect (222) at the pressure end (22). Intercooler (3), the intercooler (3) is located on the lower layer of the platform (1); The directional exhaust quick connector (222) and the intercooler (3), and the intercooler (3) and the first quick connector port (211) are connected by a test circuit connecting pipe (13).

2. The rapid testing bench for hydrogen fuel cell air compressors according to claim 1, characterized in that: The directional exhaust quick connector (222), intercooler (3) and first quick connector port (211) together with the test circuit connecting pipe (13) form a closed-loop test circuit; the air filter unit (221) is used for air intake, and the second quick connector port (212) is used for exhaust.

3. The rapid testing bench for hydrogen fuel cell air compressors according to claim 1, characterized in that: It also includes an exhaust pipe (14), which is connected to the air compressor (2) via a second quick-connect port (212), and the other end is located on the top of the stand (1).

4. The rapid testing bench for hydrogen fuel cell air compressors according to claim 3, characterized in that: The exhaust pipe (14) is provided with a back pressure valve (141) at the end away from the air compressor (2).

5. The rapid testing bench for hydrogen fuel cell air compressors according to claim 1, characterized in that: The air compressor (2) is also provided with several quick-connect fittings (23) for cooling media.

6. The rapid testing bench for hydrogen fuel cell air compressors according to claim 1, characterized in that: A wire harness interface (15) is provided on the side of the installation operation test bench (12).

7. The rapid testing bench for hydrogen fuel cell air compressors according to claim 1, characterized in that: The lower layer of the test stand (1) is provided with a standard mounting position (16) for the controller on the side away from the intercooler (3).

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