Operation principle of hydrogen compressor

Common hydrogen compressor operation principle

　　As the key central equipment of the hydrogenation station, the hydrogen compressor market demand gradually adds with the boom of station construction. Attracted the attention of the upstream and downstream of the industrial chain. In the design and construction process of the hydrogenation station, making the process process plan and selecting the appropriate process equipment can play a vital role in accelerating the construction progress of the hydrogenation station and reasonably controlling the construction cost.

　　At present, the primary process of domestic hydrogenation stations is based on the storage and transportation mode of high-pressure gaseous hydrogen, and the main hydrogen supply by the station foreign manager and trailer. Station foreign minister tube trailer for hydrogen high pressure gaseous hydrogen storage hydrogenation station process, long tube trailer will 20MPa hydrogen from hydrogen into the fixed station production unit, through the hydrogenation station tightening machine unloading hydrogen to station high pressure hydrogen storage tank, vehicle hydrogenation, long tube trailer or hydrogen storage tank output hydrogen, through the hydrogenation machine filling to the fuel cell car car hydrogen storage bottle.

　　At present, the most widely used vehicle hydrogen storage bottle pressure levels in the world are mainly 35MPa and 70MPa. High design pressure level of the vehicle hydrogen storage pressure level matching, in addition to the use of long tube trailer as 20MPa mobile hydrogen storage facilities, 35MPa hydrogen fuel cell car hydrogen station station high fixed hydrogen storage pressure is generally 45MPa, 70MPa hydrogen fuel cell car hydrogen station station high fixed hydrogen storage pressure is generally 90MPa.

　　The operation principle, composition, characteristics and advantages and disadvantages of the traditional barrier, liquid drive piston, ion and new liquid drive barrier tightening machines in the common hydrogen tightening machines.

　　Traditional estrangement type austerity machine

　　The principle of operation

　　Hydrogen compressor is a reciprocating tightening machine to tighten and transport gas in the cylinder. The estrangement is clamped by the gas side membrane head and the oil side membrane head along the periphery, and the estrangement is driven by mechanical or hydraulic pressure in the cylinder, so as to realize the tightening and transportation of the gas.

　　In order to better understand the operation principle of hydrogen compressor, the following figure shows the typical arrangement of tightening machine, including motor, crankcase, hydraulic system and membrane head.

　　Supply scope

　　Motor, pulley, crankcase, crank connecting rod mechanism, piston, oil side membrane head, membrane, gas side membrane number one composition；

　　Characteristic

　　With the diaphragm to completely block the oil and gas, can ensure the gas purity, good sealing, single stage tightening ratio；

　　Advantage

　　No pollution, to ensure the clean hydrogen tightening process；

　　Good sealing, suitable for flammable and explosive and other risk of gas tightening；

　　Large tightening ratio, simply achieve low intake, high exhaust; isothermal tightening combined with integrated cooling, low exhaust temperature；