The key to the modification of the secondary piston body of the MH12-92/314 compressor is to solve the problem that the minimum spacing of the piston ring is greater than the stroke of the piston. When the minimum spacing of the piston ring = piston stroke, the distance between the inner and outer points of the piston ring is 0 mm, but there is a side gap between the piston ring and the ring groove. In actual operation, the spacing of the piston ring is still greater than the piston stroke. Therefore, the minimum spacing of the piston rings should be different for different production properties using different automatic fire protection systems, such as water fire extinguishing systems, carbon dioxide fire extinguishing systems, dry powder fire extinguishing systems, and the like. As the automation of production increases, the automatic fire protection system should be included as part of the production equipment and actively adopt the latest automatic fire protection technology to ensure production safety.

Pipes should be welded as much as possible, and the application flange connection of welded joints cannot be used in the process. The laying of pipelines should consider the erection of overhead, ground, trenches, etc. according to different situations; pipelines should not pass through the buildings as much as possible, and must pay attention to maintain the clearance height when crossing roads and railways; different pipelines should be kept at a certain distance when they are laid together. Requirements; check valves, block valves, check valves, etc. should be provided at necessary locations. The gas source system has been successfully developed. It has the advantages of novel design, advanced performance, simple and compact structure, high degree of automation, safe and reliable operation, convenient operation and maintenance, low construction and operation cost, etc. It is the most advanced wind tunnel gas in China. The source system can be used as a new high-speed wind tunnel gas source or a typical structural model that is retrofitted with a wind tunnel gas source. If the variable pressure regenerative dryer is changed to the air compressor compression heat regeneration technology, the regeneration energy consumption of the desiccant can be reduced to zero.

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