江苏11选5

ZHEJIANG FUWA PUMP INDUSTRY CO, ITD

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Reasons for damage to the mechanical seal of deep well pump

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Reasons for damage to the mechanical seal of deep well pump

Release date:2018-09-30 The author: Click:

First, the deep well pump periodically leaks:


1。 The axial rotation of the pump rotor and the moving ring are not enough to compensate for the displacement;


Unsteady operation, pressure in the sealed chamber often changes;


4 The rotor periodically vibrates。


Second, frequent leaks


1. Dynamic and static ring sealing surface deformation


江苏11选5(1) The end face is too large, the friction heat is too much, and the sealing surface is thermally deformed.


The structure of the sealing part is unreasonable, the rigidity is insufficient, and it is deformed after being pressed。


(3) Deformed due to uneven force during installation


1 The combined kinking (or static ring) is not tight and leaks:


3, the friction pair can not be saturated, the sealing surface damage:


4, enter the sundries inside the seal


5, the sealing end face is smaller than the pressure! ~6, the sealing ring is not good.


The ring is inherently defective


江苏11选5When the sealing ring is installed, the V-shaped side is cut by the static ring anti-rotation groove


江苏11选5The ring is installed in the wrong direction.


7. The perpendicularity of the sealing surface of the static ring (or moving ring) and the shaft is too large, and the sealing pair cannot be freely adjusted.


8, anti-rotation end against the anti-rotation slot)


9. The direction of the spring is not correct, the spring force is eccentric, and the spring force is hindered.


Rotor vibration


11。 The accumulation speed of scale on the surface of the sleeve exceeds the wear speed of the friction pair, so that the moving ring cannot compensate for the wear displacement。


The groove surface has grooves, pits or corrosion defects at the seal ring


Third, the sudden leak of the deep well pump


The pump is strongly evacuated to destroy the seal:


4, the hard ring surface produces cracks to cut the soft ring surface


5, soft ring fragmentation


8 due to temperature changes, the medium surrounding the sealing pair crystallizes, destroying the sealing pair in a short time


江苏11选56 Fourth, the wear surface of the friction pair is accelerated


Spring specific pressure and total specific pressure design is too large

Zhejiang Fufeng Pump Co., Ltd. is located in Huihai Road, Shamen Bingang Industrial City, Yuhuan City, Zhejiang Province. It is a manufacturer specializing in the production of various types of deep well pumps, screw pumps and other mechanical and electrical products. The products are widely used in domestic water intake, fire protection, minerals. , water industry transportation, farmland irrigation, etc.


This article URL:http://www.davy3d.com/en/news/374.html

Key words:Submersiblepumpmanufacturer,submersiblepumpsupplier,submersiblepump

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