water ring vacuum pump manufacturers by analysis of pipeline leakage methods and measures

When the water ring vacuum pump is working, if it is found that the vacuum pump has insufficient water or no water, first consider whether the air inlet pipe is invaded due to sand holes, cracks or insufficient air at the joint, and observe the air inlet. Some defects are very subtle and difficult to find directly with the naked eye. This is often time-consuming and ineffective. Then, the vacuum pump manufacturer analyzes the treatment measures of pipeline leakage. Before explaining the treatment method, we must know how to judge the leakage.

1、 Water ring vacuum pump factory in method for determining pipeline leakage

1. Check whether the return water of the gravity pump can be introduced into the condenser; If the return water is small and the water seal bag cannot be sealed, the water sealed by the pump shall be returned to the tank.
2. Check whether the vacuum damaged door is closed and there is no leakage.
3. Check whether the suction pipe and cylinder connected to the vacuum pump will leak; When the load decreases, the leakage air decreases, while after the load increases, the vacuum increases slightly.
4. Check whether the condenser drain valve is closed without leakage.
5. Check whether the water level of the low-pressure floor drain is normal and whether the low-pressure heater is fastened.
6. Check whether the water level gauge of the vacuum system is separated or leaked.
7. Check whether the welded joints of water seal, pipeline, flange or vacuum system valve are fastened, especially the opening of pipeline and valve from expansion tank or boiler start-up separator to condenser.
8. Check the exhaust safety valve of vacuum pump low-pressure cylinder.

2、 Water ring vacuum pump manufacturer of maintenance analysis and pipeline leakage measures

1. The vacuum pump shall be installed as close to the water surface as possible to ensure that air will not be inhaled when the water level drops.
2. When installing the suction pipe, the water inlet pipe shall be slightly inclined downward or horizontally inclined along the water inlet direction. The inlet pipe shall not be higher than the inlet, otherwise the air in the pipe cannot be discharged.
3. Prevent leakage of filled culvert. The tightness of the package culvert shall be appropriate. If it is too loose, tighten the packing gland; If the package is damaged or invalid, it shall be replaced in time; The water seal pipe in the filling area is blocked and heated, resulting in the leakage of the packing cover. The water seal pipe shall be cleaned.
4. Before installing the water inlet pipe connected by flanges, clean the plane where the two flanges contact each other, and add a 3 ~ 5mm thick rubber pad in the middle. Tighten the bolts symmetrically several times.
5. The bottom valve of vacuum pump shall have sufficient immersion depth. The immersion depth of the valve plane shall be 1.5 ~ 2 times of the outer diameter of the bottom valve, at least not less than 0.5m. If the immersion is too shallow, it is easy to form vortex, suck in air, cause cavitation and damage the impeller and pump housing. If you find that the water level drops quickly when the pump is running, you can put a few pieces of wood on the water to reduce eddy currents and prevent air from entering.
6. The exhaust plug is arranged on the main body of the vacuum pump unit. In order to facilitate deflation, a faucet with the same thread size can be used instead of the faucet, and the faucet can be turned on during deflation.
7. The vacuum at the suction port is limited. If the vacuum is too large, the water in the pump is easy to evaporate, which is not conducive to the operation of the self-priming pump. Therefore, the pump has its maximum allowable suction stroke, usually between 3 and 8.5m, which should be controlled during installation.
8. Pay attention to exhaust. Before starting, add water to remove the air in the pump; The exhaust plug on the pump cover should be opened regularly to eliminate the air accumulated inside.

The above describes in detail the measures taken by the vacuum pump manufacturer to timely maintain and analyze the pipeline leakage. If you want to know more details about the vacuum pump, please pay attention to us.