Liquid ring vacuum pump system

The sealing liquid ring pump provides sufficient sealing cooling water for the vacuum pump. Under normal conditions, the water volume is 200 L/min and the temperature is 10~30 °C. The circulation process is: sealed water pump → sealed water cooler → vacuum pump → gas water separator → The water storage capacity of the sealed water pump, gas-water separator and the whole system is 2m3, and the water supply and water consumption in the normal operation of the unit are less.roots-vacuum-pumps

In the vacuum unit suction system, the air extractor has two air suction ports. When the vacuum pump is just started, the air in the condenser vacuum system is bypassed into the vacuum pump through the air extractor, and then enters the steam water separator along with the working water ( as shown in picture 2). When the negative pressure at the inlet of the vacuum pump reaches 13.3 kPa, the aspirator is actually put into operation, and the aspirator bypass valve is automatically closed (as shown in Figure 3). Under normal circumstances, when the aspirator is operated for 30 minutes, the negative pressure in the condenser vacuum system can reach the required vacuum value.vacuum-impregnation

An air leak measurement system is installed in the vacuum pump set, and the system can safely and conveniently measure the amount of air leaking into the vacuum system at any time. The method is to change the state of the ejector active air converter at the driving air inlet from the large airflow direction to the separator direction, that is, the air in the separator acts as the driving air source of the ejector, and closes the upper row of the rigorous gas water separator. The air valve, so that the vacuum system of the whole unit forms a closed system. At this time, all the leakage air flow measuring device inlet valves are opened, and the amount of air leaking into the vacuum system is easily obtained. In the process, the vacuum pump unit is always in the process. In normal work, the entire unit vacuum system is not affected. When the leakage of the air leakage measuring device is 5kg/h, the corresponding vacuum tightness is 26.66Pa, and when the leakage is 25kg/h, the corresponding vacuum tightness is 133.3Pa, so the leak is less than 25kg per test. h, it can be considered that the condenser vacuum system rigor test is qualified.roots-vacuum-pump-type

In addition, an ejector heater is also provided in the system. When the temperature of the vacuum pump zone is lower than 10 ° C, in order to ensure stable operation of the system, the heater must be put into operation.liquid-ring-vacuum-pump-working-principle