气体增压泵系统的原理。
principle of gas booster pump system
气体增压泵是利用活塞两端的面积差来获得高压气体（液体）输出，活塞的驱动气体端是低压的，活塞的另一端是小面积的高压，增压泵两端的活塞杆容积不同， 驱动气体进入与大活塞连接的腔体，通过气动换向阀，大活塞可以往复，小活塞也往复。在活塞运动过程中，根据帕斯卡原理，在小活塞端产生高压气体（液体），泵往复运动，当输出压力接近设定压力值时，泵往复运动减慢，直至停止，此时气压和液压平衡，活塞基本保持静止， 此时能耗最低，流体温度不升高，相反，当压力降低时，泵开始工作。
a gas booster pump utilizes the area difference between the two ends of the piston to obtain high-pressure gas (liquid) output. the driving gas end of the piston is low-pressure, and the other end of the piston is high-pressure with a small area. the volume of the piston rod at both ends of the booster pump is different, and the driving gas is passed into the chamber connected to the large piston. through the pneumatic directional valve, the large piston can move back and forth, and the small piston can also move back and forth. in the process of piston movement, according to the pascal principle, high-pressure gas (liquid) is generated at the small piston end, and the pump operates back and forth. as the output pressure approaches the set pressure value, the pump's reciprocating operation slows down until it stops. at this time, the air pressure and liquid pressure are balanced, and the piston basically remains stationary. at this time, energy consumption is the lowest, and the fluid temperature no longer increases. conversely, when the pressure decreases, the pump starts to work.
气体增压泵的性能特点。
performance characteristics of gas booster pump
1、气体驱动：安全，无发热、火花、火花的危险;
1. gas driven: safe, without the risk of generating heat, sparks, or sparks;
2、密封性能好：无需油润滑，采用三套动态密封装置，将气体压缩气缸与气动缸分离，保证压缩气体不受从动气体的污染和高压输出能力;
2. good sealing performance: oil-free lubrication, three sets of dynamic sealing devices are used to separate the gas compression cylinder from the air drive cylinder, ensuring that the compressed gas is not contaminated by the drive gas and has high pressure output capacity;
3、允许进出口压力范围广：进出气压力适用范围广，无限制，最大压力输出值15MPa
3. wide range of allowable inlet and outlet pressure: it has a wide range of adaptability to gas inlet and outlet pressure without any restrictions, with a maximum pressure output value of 15mpa
4、自冷却：驱动端排出的低温膨胀废气作为冷却介质进入加压端换热器，冷却钢套和高压端的高压气体;
4. self cooling: the low-temperature expansion exhaust gas discharged from the driving end is used as a cooling medium to pass into the built-in heat exchanger at the boosting end to cool the steel sleeve and high-pressure gas at the high-pressure end;
5、维护方便：体积小、重量轻、密封寿命长、无限连续启动;
5. easy to maintain: small size, light weight, long seal life, unlimited continuous startup;
6、压力和流量调节范围广：在泵的压力范围内，通过调节进气口的压力和流量，对输出压力和流量进行相应的调节。
6. wide range of pressure and flow adjustment: within the pressure range of the pump, the output pressure and flow are adjusted step by step by adjusting the inlet pressure and flow rate;
7、易于控制：可在任意预定压力下自动停机，可远程控制，运行过程中无能耗;
7. easy to control: can automatically shut down at any predetermined pressure, can be remotely controlled, and cannot consume energy during operation;