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Feed water pump mechanical seal problem analysis in the process of operation

2010-08-19

1. Poor quality of mechanical seal device piping welding, the serious influence the safety of the feed water pump, liquid feed water pump mechanical seal design temperature is 80 ℃ alarm, 90 ℃ jump pump.When in the operation of the piping slight leakage slow temperature increase the mechanical seal liquid (due to the heat exchanger of the mechanical seal liquid is reduced, or that there is no good mechanical seal liquid cooling), when piping serious leak the mechanical seal liquid temperature rise sharply.All of these make the mechanical seal ring and static ring and stick and get very good cooling, make the dynamic and static ring overheating and damage.Repeated in the operation of the feed water pump tripping due to mechanical seal piping leakage, also increased the wear and tear of mechanical seal.So for mechanical seal device piping welding quality put forward higher requirements.

Mechanical seal on the material performance requirements

2010-08-18

Mechanical seal material selection, mainly according to the mechanical seal components work environment, such as using temperature, working pressure, the working medium used as well as the movement way and so on.The basic requirements of mechanical seals material is as follows

The structure of the mechanical seal

2010-08-17

Mechanical seal structure is mainly composed of the four most commonly: by static ring and rotating ring , consisting of a pair of seal face is given priority to with elastic sealing element buffering mechanism for compensating for auxiliary sealing mechanism, make the ring and shaft rotary actuator.

Mechanical seal selection method

2010-08-14

Mechanical seals are delicate and complex mechanical structure is one of the basic components, is all sorts of pumps, synthesis reaction kettle, key components of the turbine compressor, submersible motors and other equipment.The sealing performance and service life depends on many factors, such as selection, the precision of the machine, the correct installation use, etc. Mechanical seal selection methods:

Water ring vacuum pump mechanical seal replacement disassembling steps

2010-08-13

Disconnect the water ring vacuum pump mechanical seal on both ends of the cooling water pipe;

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Company:Sdms Seal Co.,Ltd.
Add:No.8, Dongsi Road Gaoxin Industrial Zone Zigong, Sichuan，China
Email:sdms1976@sdms.cn
Mobile:0086-18990090044
Tel: 0086-813-5100843
Fax: 0086-813-5100438

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SDMSSEAL

In Business Since 1976