How does the self-priming pump work?

The working principle of the self-priming centrifugal pump is that the self-priming centrifugal pump can send the water out due to the centrifugal force. Before the pump is working, the pump body and the inlet pipe must be filled with water to be in a vacuum state. When the impeller rotates rapidly, the blade causes the water to rotate quickly, and the rotating water flies from the impeller under the action of centrifugal force. After the water is thrown, the central portion of the impeller forms a vacuum region. The water of the water source is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure (or water pressure). This cycle is not enough, you can achieve continuous pumping. It is worth mentioning here that the self-priming centrifugal pump must be filled with water in the pump casing before it can be started. Otherwise, the pump body will be heated, vibrated, and the water output will be reduced, causing damage to the pump (referred to as “cavitation”. ") caused equipment accidents!

There are many types of self-priming centrifugal pumps, and the following methods are common in classification methods.

1 According to the impeller suction method: single-suction self-priming centrifugal pump double suction self-priming centrifugal pump.

2 According to the number of impellers: single-stage self-priming centrifugal pump multi-stage self-priming centrifugal pump.

3 According to the structure of the impeller: open-type impeller self-priming centrifugal pump semi-open impeller self-priming centrifugal pump closed impeller self-priming centrifugal pump.

4 according to the working pressure: low-pressure self-priming centrifugal pump medium-pressure self-priming centrifugal pump high-pressure self-priming centrifugal pump side vertical self-priming centrifugal pump.

High Purity Graphite

High purity Graphite refers to graphite carbon content > 99.99%, widely used in high-grade refractory material and coating of metallurgy industry, military industry, fire engineering pencil lead on material stabilizer, light industry, electrical industry of carbon brush, electrode of battery industry, fertilizer industry catalyst, additive, etc.

Performance: the scales of crystallization is complete, thin and toughness, good physical and chemical performance, good thermal conductivity, temperature tolerance, self-lubrication, conductivity, thermal shock resistance, corrosion resistance and other properties.

Description: high purity graphite (aka: scaly high thermal conductivity carbon powder) has high strength, good thermal shock resistance, high temperature resistance, oxidation resistance, resistance coefficient, corrosion resistance, and the advantages of easy to precision machining, is the ideal inorganic non-metallic materials. Used for processing and production of electrical heating components and smelting casting mould structure, high purity metal with boat, single crystal furnace crucible with heater, edm graphite anode, metal plating, sintering mold, tube, semiconductor technology with graphite crucible, launch tube, thyratron and mercury rectifier with graphite anode, grid, etc.

Characteristics and applications: high purity graphite with high strength, high density, high purity, high chemical stability, uniform and compact structure, high temperature resistant, high conductivity, good wear resistance, self-lubrication, easy processing characteristics, widely used in metallurgical, chemical, aerospace, electronics, machinery, nuclear power and other industrial fields. Especially high quality high purity graphite, as an alternative material, has wide application space in high technology and new technology field and has wide application prospect.

The purification methods are divided into two categories: first, wet purification, including flotation, acid and alkali, and hydrofluoric acid. The second is fire purification, including chlorination roasting and high temperature method.

High purity graphite

Is widely used in high-grade refractory material and coating of metallurgy industry, military industry, fire engineering pencil lead on material stabilizer, light industry, electrical industry of carbon brush, electrode of battery industry, fertilizer industry catalyst, additive, etc. High purity graphite through deep processing, but also produce graphite, graphite sealing material and composite material, graphite products, graphite antifriction additives such as high-tech products, become the important nonmetallic mineral raw materials of various industrial sectors.


High Purity Graphite


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Fengcheng Ruixing Carbon Products Co., Ltd , https://www.lnfcrxts.com