Piston compressor valve issues
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When a hydrogen piston compressor operates at 60% load for extended periods of time, it can only be regulated using bypass valves, which results in high power consumption. Is it possible to reduce the number of gas valves used? This would not only meet the required specifications but also reduce power consumption. Is such an approach feasible? I would appreciate some guidance from those with experience.
Just the normal 3-speed adjustment, right? For a long-term use rate of 60%, variable air volume control can be considered
The stepless air volume control system is too expensive, but it is still under consideration; it would be ideal to find a cheaper way to save energy
Our company’s ammonia synthesis production system, being a co-production facility using coke oven gas, experiences significant load fluctuations, and faces similar problems. We are currently considering partnering with manufacturers of compressor accessories to develop self-regulating valves that are not too expensive. We plan to test them in the near future; if Haiyou is interested, feel free to contact me privately. Let’s work together to improve the energy efficiency of reciprocating compressors and reduce their energy consumption.
Regulation can be considered by controlling the inlet flow
Piston compressors are not suitable for flow control using inlet throttling; in extreme cases, this can cause vacuum to build up in the inlet pipeline. For certain flammable and explosive gases, if inlet throttling is used and negative pressure at the inlet is not properly controlled, there is a risk of combustion or explosion in the event that air leaks into the pipeline.
Adjusting the air volume by reducing the number of intake valves seems not to work; instead, methods such as using variable frequency, backflow, changing the clearance, or pressing the intake valves open over a partial stroke can be employed.
There are cases in the petrochemical industry where the technology of pressing open the intake valve is applied, with investments of around 1 million yuan
Reduce the compressor speed. What was the original minimum speed of the compressor? For example, the rotation speed of Bengbu compressors and VW hydrogen compressors is usually 980 revolutions per minute or 740 revolutions per minute; our compressors can have their rotation speed reduced to as low as 500 revolutions per minute, achieved through the use of variable-frequency motors. A foreign-made oil pump is also used. If you need complete Bengbu compressors, their spare parts, or spare parts for Arico compressors, please contact 13705528198
Reducing the compressor speed is one method; it effectively reduces the load and thus the power consumption.