Suction head sewage pump consists of three parts, namely: part of the work, Yang pipe part, Inoue section.

Part of the work mainly by the shell, shell, shell, impeller, cone sets, shell bearings, impeller shaft and other components. Impeller is closed. In the diversion shell inlaid with a sealing ring, so that easy to replace after wear, bolted between the shell. Yang part of the main pipe by the Yang pipe, drive shaft, bracket group and other components.

Second, and more suction head sewage pump problems in multi-tip sewage pump operation due to vibration increases, the deep well pump can not run, it will lead to serious Yang pipes broken shaft or drive shaft disengagement phenomenon, brought to safety in production Serious impact.

Third, the reasons for analysis and troubleshooting Long-axis vibration caused by many factors, summarized by the routine maintenance work, summed up the main reasons for the vibration are the following:

1, Before starting, no pre-irrigation or insufficient irrigation, the pump shaft and bracket after the rotation of the rubber bearing dry friction occurred, causing severe vibration. Therefore, before the start of the pump, the rubber bearing must be continuously poured 3 ~ 5mm, until the pump seat pre-injection hole water out.

2, deep well pump impeller friction with the shell operation. The main reason is that before starting the pump, due to improper adjustment of the clearance between the shafts, it causes the impeller and the pump casing to directly contact with the friction and generate vibration. When this happens, stop the pump immediately and readjust the axial clearance of the impeller so that the adjustment amount is equal to half of the total installed amount.

3, shaft and motor shaft bending As the axis of transport, improper storage or uncorrected to the standard range before installation, resulting in shaft bending, resulting in rotation around the drive shaft swing, friction with the bracket bearing friction, causing vibration. Therefore, before the assembly of the deep well pump, it is necessary to clean and measure each axis, and correct the radial fluctuation value of the pump shaft to the standard range.

4, bracket group rubber bearing wear or shedding its serious reasons are: (1) transmission shaft bending serious; (2) bearing clearance is too small; (3) bearing bracket is not correct. Therefore, serious wear rubber bearings. Bearings and bracket group with loose, rubber bearing failure is the main cause of bearing off. In this case, should be removed pump school axis, maintenance bracket replacement bearing.

5, the well inclination is too large or serious bending As the well inclination is too large, deep well pump starts, Yang pipe and shaft wall collision friction, resulting in vibration, resulting in severe water pipe release. Therefore, the pump should be unplugged to measure the verticality of the wells. According to the measurement results, the wells should be washed as appropriate.

6, multi-suction head sewage pump falling pipe As the pumping pipe and pipe hoop thread machining accuracy is not enough or in the installation of the pipe when the fastening is not in place, the pump operation process, resulting in the thread with the Department of loosening, Yang pipe off to produce vibration. In view of this situation, should pull the pump to repair the pipe thread. In addition to the above main reasons, the motor bearing wear, pump base causes of inequality can also cause deep well pump vibration. According to the different causes of vibration should take appropriate measures, especially in equipment maintenance and pre-commissioning, should do a good job of inspection and measurement of all parts and preparations before starting to ensure the normal operation of deep well pump.

Megnesium Sulphate

Magnesium Sulphate Heptahydrate