气体增压泵的增压比为驱动活塞与高压活塞（或柱塞）的面积比，这是一个决定泵输出压力的重要因素，对于一款泵，其增压比是固定的，其输出压力为驱动气压和增压比的乘积。客户只需要根据应用场合的压力要求来选择合适增压比的产品即可。那么怎么选择合适增压比的
气体增压泵产品？直接举例，以下为2个例子：
The pressurization ratio of the gas booster pump is the area ratio of the driving piston to the high-pressure piston (or plunger), which is an important factor determining the pump output pressure. For a pump, its pressurization ratio is fixed, and its output pressure is the product of the driving pressure and the pressurization ratio. The customer only needs to select the product with the appropriate pressure ratio according to the pressure requirements of the application. So how to choose the gas booster pump with the right pressure ratio? Direct examples are as follows:
1、某客户现在的气源压力为6bar，要提升到30bar供新进设备使用，30除以6=5，也就是采用5倍气体增压泵即可把气源压力提升到30bar。当然，选型的时候还有一个重要的因素：高压后流量要求；由于此客户高压后流量要求为6L/min，5倍气体增压泵高压后流量为7L/min，可以满足其高压后流量要求，如不满足的也不可以采用。这里就不深究了。
1. The current air supply pressure of a customer is 6bar. To raise it to 30bar for new equipment, divide 30 by 6=5, that is, use a 5x gas booster pump to raise the air supply pressure to 30bar. Of course, there is another important factor in the selection: flow requirements after high pressure; Since the customer's flow requirement after high pressure is 6L/min, and the flow requirement after high pressure of 5 times of gas booster pump is 7L/min, it can meet the customer's flow requirement after high pressure, and if not, it can not be used. I won't go into it here.
2、某公司车间之前气源压力在6bar的情况下，都可以满足大部分设备生产使用；但近采购了一台需要更大气压（10bar）的设备。方案有2个，采购一台大的空气压缩机和采购一台气体增压泵，明显，前者由于成本过高且噪音过大，后选择了后一个方案。
2. When the air supply pressure in the workshop of a company is 6 bar, most of the equipment can be used in production; However, a device requiring more atmospheric pressure (10bar) has recently been purchased. There are two schemes, one is to purchase a large air compressor and the other is to purchase a gas booster pump. Obviously, the former chooses the latter scheme because of its high cost and high noise.
方案实施：客户目前气源压力为6bar，需要提升到10bar，可以给客户使用2倍的气体增压泵产品（目前的气源压力6bar乘以2=12bar，符合10bar气源压力要求）。当然，还有一个问题就是是否对高压后流量有特殊要求，2倍的气体增压泵可细分为大2倍和小2倍的，区别在于高压后的流量，大2倍的有80L/min，小2比的为40L/min。
Scheme implementation: the customer's current air source pressure is 6bar, which needs to be increased to 10bar. The customer can be recommended to use twice the gas booster pump (the current air source pressure is 6bar multiplied by 2=12bar, meeting the requirements of 10bar air source pressure). Of course, there is also a question whether there are special requirements for the flow after high pressure. The gas booster pump that is 2 times larger can be subdivided into the one that is 2 times larger and the one that is 2 times smaller. The difference is that the flow after high pressure is 80 L/min for the one that is 2 times larger and 40 L/min for the one that is 2 times smaller.
注：由于气体增压泵增压比越高，其对应要求的入口压力也高，所以广大客户在选型和使用的时候，请注意被增压气体的小入口压力。
Note: As the higher the pressurization ratio of the gas booster pump is, the higher the corresponding inlet pressure is, so customers should pay attention to the small inlet pressure of the pressurized gas when selecting and using it.
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