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What are the sealing forms and uses of seals for chemical pumps?

Release time:

2019-04-28 12:30

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What are the sealing forms and uses of seals for chemical pumps?
What are the sealing forms and uses of mechanical seals for chemical pumps?
There are seven types of seals used in the chemical industry, one of which is a self-tightening lip oil seal, which has a simple structure, small size, and convenient use and maintenance. So what are the six types of chemical pump seals? There are mainly oil seals, packing seals, labyrinth seals, gaskets, mechanical seals, thread seals and dynamic seals. Chemical pumps, seals "" Chemical pumps, seals"
One of the types of oil seals for 1. chemical pumps is a self-tightening lip oil seal, which has a simple structure, small size, and convenient use and maintenance. In addition, its resistance torque is small, which can prevent medium leakage and external dust and harmful substances from invading. It also has a certain compensation ability relative to wear and tear, and is generally used in chemical pumps in low-pressure occasions; 2. chemical pump packing seals are widely used in the form of seals with simple structure, low cost, and suitable for speed and pressure. It is also a kind of packing with compressibility and resilience, which is put into the stuffing box and converted into radial sealing force by the axial pressing force of the gland, so as to play the role of sealing element;
3. chemical pump labyrinth seals in the form of reasonable seal design, sophisticated processing, assembly, high speed, the labyrinth seal effect is very good. However, in practical applications, the resulting chemical pump leakage is a lot, so it is not commonly used in chemical pump seals;
4. chemical pump gasket sealing form gasket sealing gasket is the basic component of centrifugal pump static seal, the use of a very wide range. The selection of gaskets is mainly based on factors such as transport medium, temperature, pressure and corrosion of chemical pumps;
5. chemical pump mechanical seal mechanical pump seals are widely used in chemical pump sealing form and components. Because the mechanical seal is characterized by the advantages of low leakage and long life, general mechanical equipment is used for shaft sealing. The end face of the mechanical seal is a device to prevent fluid leakage under the action of fluid pressure and the elastic force of the compensation mechanism and the cooperation of the auxiliary seal;
6. chemical pump thread seal in the chemical pump generally has two forms, one is the thread connection gasket seal (seal), one is the thread plus filling Ji seal, both are used for small diameter thread connection sealing occasions;
7. chemical pump power seal The power seal is that the pressure head generated by the operation of the chemical pump balances the high-pressure liquid at the outlet of the main impeller. The auxiliary impeller seal has a simple structure, reliable sealing, and long service life. The chemical pump can achieve no leakage during operation. It is often used in pumps that transport media containing impurities. In addition, it is equipped with a parking sealing device to solve the chemical pump leakage that may occur during parking to achieve sealing.

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What are the molding techniques of rubber products?

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