一种燃料电池用冷热交变测试装置
By designing a fuel cell alternating temperature and temperature test device, the problem of simulating fuel cell stack testing under alternating low and high temperature environments was solved, realizing automation, rapid response, and sealing detection, thereby improving the testing efficiency and accuracy of the fuel cell stack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG QINGNENG NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
The lack of effective simulation testing devices for existing fuel cell stacks in alternating low and high temperature environments leads to insufficient verification of reliability during winter operation and makes it impossible to understand the sealing and lifespan in advance.
A fuel cell alternating heating and cooling test device was designed, comprising a first chamber, a second chamber, a heating device, a cooling device, a piping system, a pump, valves, a temperature sensor, and a vibration table. It can automatically switch between low temperature and high temperature states, and connect multiple fuel cell stacks in parallel for testing, achieving rapid response and sealing performance testing.
It enables automated testing of fuel cell stacks under alternating hot and cold environments, improving testing efficiency and accuracy, simulating actual working conditions, ensuring the sealing and lifespan performance of the stacks, and supporting simultaneous testing of multiple stacks.
Smart Images
Figure CN224518923U_ABST
Abstract
Claims
1. A cold thermal shock testing apparatus for fuel cells, characterized by comprising: It includes a first housing, a second housing, a heating device, a cooling device, a first pipeline, a second pipeline, a first pump, a second pump, a pipeline control device, a temperature sensor, and a vibration table; One end of the first pipeline is used to connect to the inlet of the fuel cell stack under test, and the other end of the first pipeline is used to connect to the outlet of the fuel cell stack under test. The first housing is connected to the first pipeline, and the connection between the first pipeline and the first housing is connected by a spring clamp. The heating device is installed in the first housing and is used to heat the first fluid in the first housing. The first pump is installed in the first housing and is used to pump the first fluid in the first housing into the first pipeline. One end of the second pipeline is used to connect to the inlet of the fuel cell stack under test, and the other end of the second pipeline is used to connect to the outlet of the fuel cell stack under test. The second housing is connected to the second pipeline, and the connection between the second pipeline and the second housing is made by a spring clamp. The cooling device is installed in the second housing and is used to cool the second fluid in the second housing. The second pump is installed in the second housing and is used to pump the second fluid in the second housing into the second pipeline. The first pipeline and the second pipeline are connected in parallel; The pipeline control device includes a first valve, a second valve, a third valve, a fourth valve, and a timer. The first valve and the second valve are installed on the first pipeline and are located at the outlet and inlet of the first housing, respectively. The third valve and the fourth valve are installed on the second pipeline and are located at the outlet and inlet of the second housing, respectively. The timer is used for timing and is also electrically connected to the first valve, the second valve, the third valve, and the fourth valve. The timer is used to drive the opening and closing of the first valve, the second valve, the third valve, and the fourth valve. Both the first pump and the second pump are electrically connected to the timer, and the timer controls the power supply to the first pump and the second pump. The temperature sensor is located at the inlet of the fuel cell stack under test, and is used to monitor the temperature of the first fluid or the second fluid entering the fuel cell stack under test; the temperature sensor is also electrically connected to the first pump and the second pump. The vibration table is a triaxial vibration table. A fixed frame and a shock absorber are provided on the vibration table. The shock absorber is located below the fixed frame. The fixed frame is used to fix the fuel cell stack to be tested on the shock absorber.
2. The cold thermal shock testing apparatus for fuel cells as recited in claim 1, wherein The first pipeline includes a high-temperature feed main pipe, a high-temperature discharge main pipe, multiple high-temperature feed branch pipes, and multiple high-temperature discharge branch pipes. The high-temperature feed main pipe, the first housing, and the high-temperature discharge main pipe are connected in sequence. One end of each of the multiple high-temperature feed branch pipes is connected in parallel to the high-temperature feed main pipe, and the other end of each of the multiple high-temperature feed branch pipes is used to connect to the cooling path inlet of multiple fuel cell stacks under test. One end of each of the multiple high-temperature discharge branch pipes is connected in parallel to the high-temperature discharge main pipe, and the other end of each of the multiple high-temperature discharge branch pipes is used to connect to the cooling path outlet of multiple fuel cell stacks under test. The first valve is installed on the high-temperature feed main pipe, and the second valve is installed on the high-temperature discharge main pipe.
3. The cold thermal shock testing apparatus for fuel cells as claimed in claim 1 or 2, characterized by The second pipeline includes a second feed main pipe, a second discharge main pipe, multiple second feed branch pipes, and multiple second discharge branch pipes. The second feed main pipe, the second housing, and the second discharge main pipe are connected in sequence. One end of each of the multiple second feed branch pipes is connected in parallel to the second feed main pipe, and the other end of each of the multiple second feed branch pipes is used to connect to the inlet of multiple fuel cell stacks under test. One end of each of the multiple second discharge branch pipes is connected in parallel to the second discharge main pipe, and the other end of each of the multiple second discharge branch pipes is used to connect to the outlet of multiple fuel cell stacks under test. The third valve is installed on the second feed main pipe, and the fourth valve is installed on the second discharge main pipe.
4. The cold thermal shock testing apparatus for fuel cells as claimed in claim 1, wherein The timer is a digital display electronic time relay.
5. The cold thermal shock testing apparatus for fuel cells as recited in claim 1, wherein The fuel cell stack under test is placed vertically on the shock absorber. An inlet is provided at the top of the fuel cell stack under test, and an outlet is provided at the bottom of the fuel cell stack under test.
6. The cold thermal shock testing apparatus for fuel cells as recited in claim 1, wherein The inlet and outlet of the fuel cell stack under test are the inlet and outlet of the cooling path of the fuel cell stack under test.