Urgently seeking solutions for reciprocating new hydrogen compressors
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Can pressure regulators be installed on the three stages inside the reciprocating new hydrogen compressor? The pressure at the exit of the third stage is 120 kilograms. Please share your suggestions
May I ask if the compressor in the original post has an “internal three-return-one” system? Could you provide a more detailed description of the structure of this compressor? Otherwise, it’s impossible to answer!
The compressor features three-stage compression; the three-way valve is a high-pressure gate valve, and it is planned to replace it with a pressure reducing valve – is this feasible?
Is the pressure relief valve the type that is adjusted manually? If that is the case, switching to a corner-type control valve can also serve to reduce pressure; it is also easy to adjust, and offers safety and flexibility.
Why are pressure regulators needed? Is it the frequent overpressure at the compressor inlet that affects the pressure of fresh hydrogen in the hydrogen production plant?
Adjusting the compressor outlet pressure often results in excessively high inlet pressure at the first stage, causing the safety valve to activate
Is that the bypass return valve? The pressure reducing valve should not be capable of adjusting flow; a pneumatic control valve will suffice, as it has the necessary function of reducing pressure.
When the flow rate at the third-stage outlet of the compressor is too high, the return high-pressure gate valve can be manually opened wider. If the buffering capacity at the first-stage inlet is limited, this often leads to the activation of the safety valve at that inlet. Using a pneumatic control valve may result in a more gradual and stable adjustment compared to manual operation, but it’s still possible for the safety valve to activate again if the adjustment range is large. It is advisable to consider increasing the buffering capacity at the inlet when switching to a pneumatic control valve, for example by using a larger inlet buffer tank.
The third option can be changed to a control valve, with a flow-limiting orifice plate added! !