The separation of the nitrogen compression chamber and the air driving chamber in the nitrogen booster pump is realized by three-stage dynamic sealing device. The part between the two rooms communicates with the air. The scheme ensures that the compressed nitrogen is not polluted by the driving gas. The nitrogen supercharger makes full use of the significant cooling of the driving gas after work.
The discharged low-temperature driving gas enters the supercharger's own cooling U-tube as the coolant, which is used to cool the high-pressure output gas and the booster pump's steel sleeve. This not only ensures that the high-pressure output gas is close to the temperature of 6 ℃ of the supercharger, but also avoids the harsh noise of the electric refrigeration.
Driving part of nitrogen booster: when adjusting the nitrogen driving, the reliable working temperature of the pump is - 15 ℃ ~ + 65 ℃. However, when the dew point of air supply is less than - 55 ℃, the solid working temperature of the pump is the nitrogen compression part of - 35 ℃ to + 65 ℃: low temperature generally has no effect on the specification parts and sealing work of the compression part of the nitrogen supercharger.
The heat generated when shrinking helps to counteract the cold. The maximum uniform usable temperature of this part is 115 ℃ (240? F). Since the nitrogen pressurization system is equipped with high-precision dryer, the temperature of the gas seal test station is 35 ℃, the humidity is 95-98%, and the dew point of the high-pressure gas outlet is less than - 65 ℃.
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