空压机参数一般就是指这三项指标。用户到底需要多大排气量 Q 和多大压力 P 的空压机，是根据用户的用气设备的具体耗气量来定的，太大了是一种浪费，太小了不够用，故而用户必须根据自己设备的具体情况慎重的选择型号。一般计算用户设备的实际耗气量，再加1.2倍左右的富裕系数就是空压机排气量的选型参数。确定压力是不仅要考虑到设备实际需要的压力大小，还要考虑管路上的压力损失，故而要大一些为好。
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.
排气量Q指的是空压机每分钟的排气量，这是一种习惯的说法，实际上指的是空压机进口的空气流量。比如LGB-10/8的空压机，给用户交流时说的就是排气量是10 m3的空压机，实际上指的是每分钟吸入标准大气压情况下的10 m3的空气，换算成8公斤时的实际流量应该是10÷8≈1.25 m3的真实排气量。也就是说LGB-10/8在8公斤时的真实排气量应是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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