Steam ejector vacuum systems may encounter various faults during use, and here are some common troubleshooting methods:
Low operating vacuum
This can be a common problem after long-term use. First, check the working condition of the steam jet pump to make sure it is operating properly. At the same time, check the system for air leaks, especially the sealing parts, such as gaskets, flange faces, etc., to ensure that they are installed correctly and not damaged.
Increased condenser pressure
This can be due to a number of reasons. First, check the drain pipe of the condenser for air leakage and, if necessary, plug and repair the leak. Secondly, clean the dirt and blockages in the condenser to ensure that the water curtain is good. In addition, check whether the sprinkler plate of the condenser is tilted or blocked, and whether the lower nozzles are blocked, and adjust and clean it in time. Finally, if the condenser has too much water, it should be discharged in time.
Suction pressure fluctuations
This can be caused by oil contamination in the steam jet pump, rising operating vapor humidity, scale deposited in the pipes, leaking air in the pipe connection flange seal, or fluctuating working vapor pressure. First, clean the oil from the pump, and if the problem persists, check and adjust the humidity and pressure of the working vapor. At the same time, remove limescale from the pipes and fix the air leakage at the flange seals.
The condenser drain temperature rises
this is usually caused by an insufficient water supply. Inspect the water supply system to ensure that the water supply is adequate and adjust the water supply as needed.
Nozzle clogging or wearing
Nozzle clogging can be caused by large foreign particles in the pipe, while nozzle wear can affect the vapor velocity and thus the vacuum. Inspect and clean the nozzle regularly to make sure it is unobstructed. For nozzles with severe wear, they should be replaced in time.
When troubleshooting, you also need to pay attention to the following points:
Regularly inspect the internal structure of the steam ejector, especially the pump body and related piping, to find possible potential faults.
For equipment with high work intensity, ash should be cleaned regularly to prevent dust from causing damage to the inside of the equipment.
Measure the wall thickness of the equipment regularly to detect possible wear and breakage.
Ensure that the quality and supply of circulating cooling water meet the requirements to avoid adverse effects on the capacity of the vacuum pump.
Regularly check the tightness of the vacuum pump system to identify and fix possible air leaks in a timely manner.
To sum up, the troubleshooting of the vacuum system of the steam ejector needs to consider many aspects, from the inspection of the working condition of the system to the maintenance of each component. Through regular inspection and maintenance, potential problems can be found and solved in time to ensure the stable operation of the system.
