Precautions for using gas driven carbon dioxide injection pump (see figure)

The carbon dioxide injection pump is a type of gas driven booster pump, which works similarly to a gas driven reciprocating piston pump. By controlling its driving pressure, the output pressure can be controlled. When the output pressure is in a multiple relationship with the driving air pressure, the pump body begins to stop working, and the pressure stabilizes at the preset pressure. When the output carbon dioxide pressure is consumed and the pressure drops, the carbon dioxide injection pump automatically starts to supplement the pressure and always maintains this pressure.

The carbon dioxide injection pump has certain requirements for the driving gas source. Generally, the driving pressure is 3-8 bar, and the air pressure must be free of moisture and clean. If the water vapor is too high, it will cause severe icing. Affects the efficiency of the refueling pump.

So the filling pump also has certain requirements for low-temperature carbon dioxide medium. Firstly, the low-temperature CO2 inlet medium must be clean and free of impurities, and the state of the medium must be distinguished from liquid, gas-liquid mixture, or pure gas. Choose different carbon dioxide injection pumps according to different media.

How to maintain the carbon dioxide injection pump? Remember: 'Listen, look, and make sure'

Listening "is to determine whether the booster pump is working normally based on its operating frequency, whether it suddenly accelerates or works weakly, whether there is a sound of collision with the cylinder, etc

The "second look" depends on whether the pump's output pressure is stable and whether there is frost on the surface of the pump.

The "three guarantees" are to ensure the stability of the driving gas source for the carbon dioxide injection pump, to ensure sufficient inlet medium pressure and flow rate, and to ensure accurate injection selection. It is not advisable to imagine things out of thin air when selecting, and the selection must be based on one's own working conditions. When choosing a dioxide injection pump, it is important to identify the brand of a reputable manufacturer. Feentor Sales Engineering will provide you with necessary assistance during the selection process!