气密性检测设备实际为气体增压装置，它是我公司从国外引进的气动试压装置，围绕其工作原理并与我国的实际情况研制而成的一种新型试压装置。气密性检测系统特点及操作方法是怎样的？
The air tightness testing equipment is actually a gas pressurization device. It is a new type of pneumatic pressure test device introduced by our company from abroad. It is developed based on its working principle and the actual situation of our country. What are the characteristics and operation methods of the air tightness detection system?
气密性检测系统特点
Characteristics of air tightness detection system
它是使用压缩空气为动力源，以气体增压泵为压力源，输出气体压力与驱动气源压成比例。通过对驱动气源压力的调整，便能得到相应的增压后的气体压力。
It uses compressed air as the power source and a gas booster pump as the pressure source. The output gas pressure is proportional to the driving gas source pressure. By adjusting the pressure of the driving air source, the corresponding pressurized gas pressure can be obtained.
当驱动气源压力与增压后的气体压力平衡时，增压泵便停止充压，输出气体压力也就稳定在预调的压力上。因而具有防爆、输出压力可调、体积小、重量轻、操作简单、性能可靠、适用范围广等特点。
When the driving air source pressure is balanced with the pressurized gas pressure, the booster pump will stop charging, and the output gas pressure will stabilize at the preset pressure. Therefore, it has the characteristics of explosion-proof, adjustable output pressure, small volume, light weight, simple operation, reliable performance and wide application range.
它特别适用于阀门、管路、连接件、压力容器等受压设备的试压检验。同时也适合科研、检验部门检测工具。
It is especially suitable for pressure test and inspection of pressure equipment such as valves, pipelines, connectors and pressure vessels. At the same time, it is also suitable for testing tools of scientific research and inspection departments.
用途：它的用途可以用于CNG改装汽车管路、阀门、连接件的气密性检验及耐压检验。
Usage: it can be used for air tightness inspection and pressure resistance inspection of CNG refitted automobiles pipelines, valves and connectors.
气密性检测系统操作方法
Operation method of air tightness detection system
1、 将二联体的油雾器加入润滑油。南方用10#或20#机械油，北方冬季用防冻机械油或低凝液压油。
1. Add lubricating oil to the oil atomizer of the two units. 10\or 20\mechanical oil is used in the south, and antifreeze mechanical oil or low pour point hydraulic oil is used in the north in winter.
2、连接上需要试压的管路，低压压缩空气PU管（の12）接到装置进气口端，1.5M高压胶管连上充气枪头，枪头侧接上汽车加气阀，另一侧接在装置高压气出口端。关闭卸荷阀，打开高压针阀，气源压力要求不大于0.7MPa（7kgf/cm?）。
2. Connect the pipeline that needs pressure test, connect the low-pressure compressed air Pu pipe (の 12) to the air inlet end of the device, connect the 1.5m high-pressure rubber pipe to the inflation gun head, connect the automobiles filling valve to the gun head side, and connect the other side to the high-pressure gas outlet end of the device. Close the unloading valve and open the high-pressure needle valve. The air supply pressure shall not be greater than 0.7MPa (7kgf/cm?).
3、调整二联体的压力，左右旋转二联体将气源压力调到0.5MPa,增压后气体压力为20MPa。
3. Adjust the pressure of the two-way coupling, rotate the two-way coupling left and right to adjust the air source pressure to 0.5MPa, and the gas pressure after pressurization is 20MPa.
4、打开手动换向阀（俗称手拉阀），气体增压泵开始工作，当达到设定压力后增压泵自动停止工作。或看到高压压力表达到需要的压力时关闭手动换向阀，让泵停止工作。
4. Open the manual reversing valve (commonly known as manual valve), and the gas booster pump starts to work. When the set pressure is reached, the booster pump automatically stops working. Or close the manual reversing valve to stop the pump when the high-pressure pressure reaches the required pressure.
5、
气体增压泵厂家提醒您，要保压5分钟后，关闭手动换向阀，切断驱动气源，然后打开卸荷阀，将管路中的高压气体卸完后再拆掉被试件。
5. The manufacturer of the gas booster pump reminds you that after maintaining the pressure for 5 minutes, close the manual reversing valve, cut off the driving air source, and then open the unloading valve. After unloading the high-pressure gas in the pipeline, remove the test piece.
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