Fuel Cell Hydrogen Circulation Pump
The hydrogen circulation pump is a vital component within hydrogen fuel cell systems, designed to address critical challenges and optimize performance. With its patented anti-icing structure, this pump effectively prevents ice formation, ensuring reliable operation even in extremely cold environments. The integration of motor variable frequency control further enhances its capabilities by enabling adaptive response to varying power demands. This intelligent control mechanism improves hydrogen circulation, maximizing the utilization efficiency of this valuable resource. The combination of these innovative features guarantees the pump's reliability, durability, and contributes to the overall efficiency and sustainability of hydrogen fuel cell systems.
| Model number |
WQ1O |
WQ2O |
WQ3O |
WQ47 |
WQ60 |
| Motor speed (rpm) |
1000-2400 |
0-2400 |
0-8000 |
0-6500 |
0-8000 |
| Boost pressure (kPa) |
15 |
25 |
40 |
40 |
50 |
| Flow rate (Nm3/h) |
7 |
40 |
30 |
25 |
60 |
| Rated power (kW) |
0.3 |
0.6 |
1 |
0.5 |
2 |
| Dimensions (mm) |
105×100×170 |
140×140×125 |
220×161×121 |
195×141×120 |
256×161×121 |
| Compatible with fuel cell systems (kW) |
10~15 |
150~200 |
45~80 |
20~60 |
70~120 |
| * Customizing products according to customer requirements. |
The hydrogen circulation pump operates on the principle of maintaining a continuous and controlled flow of hydrogen within the fuel cell system. This is achieved through a series of intricate mechanisms and processes designed to ensure efficient and reliable operation.
At the core of the pump is an electric motor, which serves as the driving force behind the circulation process. The motor is equipped with motor variable frequency control, allowing for precise adjustment of the motor speed based on the power requirements of the system. This enables the pump to adapt to varying load conditions, ensuring optimal performance and energy efficiency.
The pump incorporates a patented anti-icing structure that addresses the challenge of ice formation. This structure prevents the accumulation of ice and frost on critical components, such as the impeller and housing, which could impede the flow of hydrogen. By maintaining ice-free operation, the pump guarantees uninterrupted hydrogen circulation, particularly in cold environments where icing is a common concern.
During operation, hydrogen gas is drawn in through the intake port and enters the pump housing. The impeller, driven by the electric motor, spins rapidly, creating a centrifugal force that propels the hydrogen outward. This centrifugal force generates the necessary pressure to overcome system resistance and maintain a steady flow of hydrogen.
The hydrogen gas is then discharged from the pump through the outlet port and directed to the fuel cell stack or other components within the system that require hydrogen supply. The pump's motor variable frequency control ensures that the flow rate of hydrogen can be adjusted in response to changing power demands, providing the necessary flexibility for different operating conditions.
Through this controlled circulation process, the hydrogen circulation pump plays a crucial role in maintaining the optimal operating conditions within the fuel cell system. By ensuring a continuous flow of hydrogen and mitigating the risks associated with ice formation, the pump contributes to the overall efficiency, reliability, and performance of hydrogen fuel cell systems.
*Small in size and lightweight.
*Low noise and vibration-free.
*Inherent design and control logic of the product, with excellent low-temperature startup and ice-breaking capabilities.
*Integrated design of the intake end cover, exhaust end cover, and pump body.
*The system supports CAN 2.0A and CAN 2.0B (compatible with onboard controllers).
*The motor and controller have undergone IP67 and EMC testing and have third-party test reports.
*The controller has a fault recording function.
*Highly efficient, compact permanent magnet synchronous motor with direct drive, allowing flexible installation.
*The system has over-temperature and over-current protection functions.
*Mature and reliable explosion-proof design
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