空壓機參數一般就是指這三項指標。用戶到底需要多大排氣量 Q 和多大壓力 P 的空壓機，是根據用戶的用氣設備的具體耗氣量來定的，太大了是一種浪費，太小了不夠用，故而用戶必須根據自己設備的具體情況慎重的選擇型號。一般計算用戶設備的實際耗氣量，再加1.2倍左右的富裕系數就是空壓機排氣量的選型參數。確定壓力是不僅要考慮到設備實際需要的壓力大小，還要考慮管路上的壓力損失，故而要大一些為好。
Air compressor parameters generally refer to these three indicators. How much air compressor does the user need to exhaust Q and how much pressure P is determined according to the specific gas consumption of the user's gas-using equipment. Too much is a waste and too small is not enough. Therefore, the user must carefully select the type according to the specific situation of his equipment. Generally, the actual air consumption of user equipment is calculated, and the selection parameters of air compressor exhaust volume are added about 1.2 times the affluence coefficient. To determine the pressure is not only to take into account the actual needs of the equipment pressure, but also to consider the pressure loss in the pipeline, so it is better to be larger.
The State Economic and Trade Commission promulgated on December 27, 2002. In the General Injection Screw Air Compressor JB/T6430-2002, which was implemented on April 1, 2003, there are clear provisions on the corresponding relationship among flow Q, pressure P and motor power KW.
排氣量Q指的是空壓機每分鐘的排氣量，這是一種習慣的說法，實際上指的是空壓機進口的空氣流量。比如LGB-10/8的空壓機，給用戶交流時說的就是排氣量是10 m3的空壓機，實際上指的是每分鐘吸入標準大氣壓情況下的10 m3的空氣，換算成8公斤時的實際流量應該是10÷8≈1.25 m3的真實排氣量。也就是說LGB-10/8在8公斤時的真實排氣量應是1.25 m3左右。
Exhaust Q refers to the air compressor exhaust per minute, which is a customary term, in fact refers to the air compressor inlet air flow. For example, LGB-10/8 air compressor, when communicating with users, means that the exhaust volume is 10 m3 air compressor. In fact, it refers to 10 m3 air inhaled at standard atmospheric pressure every minute. When converted into 8 kg, the actual flow should be 10_8_1.25 m3 real exhaust volume. That is to say, the actual exhaust volume of LGB-10/8 at 8 kg should be about 1.25 m3.
The approximate conversion formulas for inhalation and exhaust are as follows:
Q High Pressure Flow Q Inlet Flow P Exhaust Pressure
The most scientific statement should be the volume flow of the air compressor, that is, the exhaust volume of the air compressor at each turn of the rotor, which is a hard index to measure the size of the head.
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