What are the reasons for the poor efficiency of vacuum pump

With the rapid development of China's economy, China's vacuum pump industry has maintained the momentum of rapid growth, and achieved sustained and stable development. In its rapid development at the same time, the vacuum pump companies and users are constantly explore how can promote the vacuum pump operation, whether the vacuum pump work under normal conditions, directly affect the time volume of vacuum pump, vacuum pump working condition worsen, cause loss of pumping air, thereby affecting the back pressure unit, resulting in a decline in the summer heat loading capacity and efficiency. Here, vacuum pump manufacturers talk about the vacuum pump work efficiency is poor what are the reasons?
The main reasons for the temperature rise of the working water ring of the vacuum pump are as follows:
A. The vacuum pump working water cooler is dirty and blocked, resulting in insufficient cooling of working water;
B. High cooling water population temperature of vacuum pump working water cooler;
C. Vacuum pump maintenance vacuum pump working water cooler insufficient cooling water, resulting in the cooling effect of vacuum pump cooler decline. Because of the high temperature of the working water ring of the vacuum pump, the load capacity of the unit decreases in summer.
Vacuum pump manufacturers analyze the solutions:
(1) to increase the number of heat exchangers in the sealed cooling water system or to improve into efficient heat exchangers and increase the circulation flow of sealed cooling water, a forced circulation pump can be installed in the sealed cooling water system.
(2) the working water cooler of the vacuum pump shall be cleaned in time.
(3) lower the temperature of vacuum pump cooling water.
Through the following vacuum pump manufacturers talk about the reasons for the poor efficiency of vacuum pump, we can initially understand the factors that affect the efficiency of vacuum pump.
1. Steam pressure
Low steam pressure and pressure fluctuation have a great impact on the capacity of the vacuum pump, so the steam pressure should not be lower than the required working pressure, but the vacuum pump structure design has been finalized, too much increase in steam pressure will not increase the pumping capacity and vacuum. In addition, to ensure that the boiler supply steam pressure is stable, zui USES a boiler specifically to provide working steam for the steam jet pump, so that the steam pressure will not fluctuate, to ensure the performance of the vacuum pump is stable.
2. Circulating cooling water
If the cooling water supply is insufficient, the condenser will generate heat, the air flow will become louder, the vacuum will drop rapidly, and even the steam will return to the exhaust pipe. Condensate water plays an important role in the multistage vacuum pump, condensate water can condense the steam, the vacuum pump discharge pressure of water vapor pressure is necessary to be higher than the corresponding full steam pressure, so the temperature of condensate water is also lower than the full temperature under the pressure, in order to ensure the normal operation of the pump body.
3, the nozzle
Nozzle is an important part that affects the performance of the vacuum pump. The existing problems include: wrong nozzle, wrong nozzle, blockage, damage, corrosion and leakage. No matter what preventive measures are taken, the blockage of the nozzle is inevitable. On the one hand, when installing the steam pipe, the residual iron scrap and welding slag in the pipe will block the nozzle; On the other hand, when the vacuum pump system is out of service, the steam pipe is prone to rust, and the rust spots fall off and block the nozzle during use.
4. Use environment
Environment is mainly refers to the influence of the gas is pumped to the system of pollution, in the process of liquid steel disposal, liquid steel can emit a lot of gas, but also there will be a part of the subtle oxidation sheet jelly and other small particles drawn into a vacuum pump, these small particles can accumulate adhesion on the pump body, reduced the bleed line flow guide, extended the extraction time, decreased pump can qigong.

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