Corrosion resistant water ring vacuum pump

A water ring vacuum pump, corrosion-resistant technology, applied in the direction of pumps, pump components, non-variable pumps, etc., can solve the problems of general service life, low use cost, not resistant to hydrofluoric acid, etc., to achieve extended service life, manufacturing The effect of simple process and low cost

CN101251125BActive Publication Date: 2010-10-27HUBEI TONGFANG HI-TECH PUMP IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2010-10-27

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Abstract

The invention discloses an improved corrosion resistant water ring vacuum pump which comprises components and parts such as a bearing body, a side cover, a distributor, an impeller, a shaft, a pump body, a shaft sealing part, a gas-water separator and a gas suction case or a gas suction pipe and so on which are made from cast iron, cast steel or carbon steel. The invention is characterized in that: a nonmetal material underlayer is coated on a wall surface through which impeller fluid flows; a corrosion resistant inlaid piece is embedded in the exhaust hole part of a distributor matrix and then a nonmetal material underlayer is coated on a wall surface through which fluid flows. The improved corrosion resistant water ring vacuum pump has the characteristics of low cost, long service life,relatively simple manufacturing process, corrosion-resistant, cavitation-resistant and wearable excess flow parts, economical repeated maintenance, etc.; moreover, the vacuum pump is suitable to pumpcorrosive gas which does not contain solid matter in industries such as chemical industry, metallurgy, environmental protection, paper making, fertilizer and pharmacy and so on.
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Description

technical field

[0001] The invention relates to an improved corrosion-resistant water ring vacuum pump, in particular to a water ring vacuum pump in which corrosion-resistant materials are arranged on the surface or part of parts through which fluid flows. Suitable for compression, filtration, concentration, adsorption, cooling, reaction and other process devices in chemical industry, metallurgy, environmental protection, pharmaceutical, papermaking, chemical fertilizer and other industries. Background technique

[0002] At present, the water ring vacuum pump widely used in industry has adopted various schemes in order to improve its corrosion resistance. Among them, the common one is to line the metal shell with ceramics, such as the "acid-resistant ceramic water ring vacuum pump" disclosed in Chinese patent 94229021.6; there is a layer of glass fiber reinforced plastic as the lining in the metal shell, such as Chinese Patent No. 200420090107.1 discloses the "plastic corro...

Examples

Embodiment Construction

[0022] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0023] See figure 1 . In the figure: drive end bearing body 1, drive end side cover 2, drive end distributor 3, impeller 4, shaft 5, pump body 6, non-drive end distributor 7, non-drive end side cover 8, shaft seal part 9, Non-drive end bearing body 10, gas-water separator 11, suction box or suction pipe 12, air intake hole 13, exhaust hole 14, insert 15, non-metal material lining 16.

[0024] The present invention is a corrosion-resistant water ring vacuum pump, which contains bearing bodies 1 and 10, side covers 2 and 8, distributors 3 and 7, impeller 4, shaft 5 and pump body 6 made of cast iron, cast steel or carbon steel , shaft seal part 9, gas-water separator 11 and suction box or suction pipe 12 and other parts. The present invention designs the anti-corrosion scheme according to the principle of equal service life according to the different ...