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Liquid ring vacuum pump system workflow

Seal is to provide enough for vacuum pump seal cooling water pump, water under normal circumstances is 200 L/min, the temperature is 10 ~ 30 ℃, circulation process is: the seal water pump and seal water cooler to vacuum pump, gas water separator to seal the water pump, gas water separator and the whole system to save water is 2 m after, set in the normal operation of water quantity and water consumption are less.


Vacuum suction system, gas appliance has two suction mouth, air in the vacuum pump has just started, the air in the condenser vacuum system through air extractor bypass into the vacuum pump, and then with the work of water into the steam separator. When the negative pressure at the inlet of the vacuum pump reaches 13.3kpa, the pump is really started and put into operation, and the bypass valve of the pump is closed automatically. Under normal circumstances, the negative pressure in the condenser's vacuum system can reach the required vacuum value after the pump runs for 30min.

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The air leakage measurement system is set up in the vacuum pump group, which can be used to measure the air leakage into the vacuum system safely and conveniently at any time. Its method is to drive air inlet air ejector activity converter state from the direction of air flow to the separator instead of by air separator as the injector drive air source, closed tight upper water separator drain valve of the gas, so the whole set of vacuum system to form a closed system, at the moment all open leak air inlet valve, the flow measurement device is very easy to get the amount of air leaking into the vacuum system, in the process, has been in a vacuum pump is normal work, the vacuum system is not affected by any unit. Air leakage measurement device leakage empty volume of 5 kg/h, the corresponding vacuum rigor 26.66 Pa, air leakage quantity is 25 kg/h, the corresponding vacuum rigor 133.3 Pa, so as long as the blank for each test below 25 kg/h, can think the condenser vacuum system leak test qualified.


In addition, in the system is also equipped with the injector heater, when the temperature of the vacuum pump area under 10 ℃ when, in order to ensure the stable operation of the system, it must will be put into operation the heater.

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