A combination vacuum pump

A combined pump and water ring vacuum pump technology, applied to pumps, pump components, rotary piston pumps, etc., can solve the problems of complex structure, low service life, high power consumption, etc.

Inactive Publication Date: 2018-09-28
湖北兴雨泵业股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Specifically, the technical problem to be solved by the present invention is: to provide a combined vacuum pump to solve the technical problems of complex structure, high power consumption and low service life of the current combined vacuum pump

Method used

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  • A combination vacuum pump
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Examples

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preparation example

[0082] Preparation Example: Preparation of Modified Calcium Sulfate Whiskers

[0083] A1: Cut the calcium sulfate whiskers to a length of 0.3mm, add them to a sufficient amount of absolute ethanol, ultrasonically clean them for 25 minutes, filter, wash the calcium sulfate whiskers with deionized water for 2-3 times, and remove them. , fully dried to obtain clean calcium sulfate whiskers;

[0084] A2: Add clean calcium sulfate whiskers to dehydrated alcohol of 9 times its mass, then slowly add the dehydrated ethanol solution of isopropyl orthosilicate (the clean calcium sulfate whiskers and isopropyl orthosilicate The mass ratio of the isopropyl orthosilicate is 1:0.5, and the mass percentage concentration of the isopropyl orthosilicate is 25%), stirred and reacted for 50 minutes, filtered, and the obtained whiskers were fully washed 3-4 times with deionized water, dried, and The obtained dried whiskers were calcined at 320° C. for 35 minutes, and cooled naturally to room temp...

Embodiment 1

[0086] S1: According to the weight ratio of 2:1:1, weigh phenol A type epoxy resin, methacrylic acid-butadiene-styrene terpolymer (MBS resin) and polyvinyl chloride, and use a high-speed mixer to carry out Fully and evenly mixed to obtain 80 parts by weight of resin masterbatch;

[0087]S2: Add 1 part by weight of the modified calcium sulfate whisker obtained in the preparation example, 1 part by weight of the stabilizer isooctyl dimethyl tin dimercaptoacetate, and 3 parts by weight of the toughening agent methyl methacrylate into the above resin masterbatch -butadiene-styrene terpolymer (MBS), 0.4 parts by weight of nano carbon black, 3 parts by weight of dilaurate thiodipropionate, 1 part by weight of two-component antioxidant (for mass ratio 1: 1 Tris(2,4-di-tert-butylphenyl)phosphite and 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl base) benzene mixture), 0.8 parts by weight of adhesion promoter formula (I) compound, 6 parts by weight of auxiliary agent (b...

Embodiment 2

[0090] S1: According to the weight ratio of 2:1:1, weigh phenol A type epoxy resin, methacrylic acid-butadiene-styrene terpolymer (MBS resin) and polyvinyl chloride, and use a high-speed mixer to carry out Fully and evenly mixed to obtain 80 parts by weight of resin masterbatch;

[0091] S2: Add 0.5 parts by weight of the modified calcium sulfate whisker obtained in the preparation example, 2 parts by weight of the stabilizer isooctyl dimethyl tin dimercaptoacetate, and 2 parts by weight of the toughening agent methyl methacrylate into the above resin masterbatch -butadiene-styrene terpolymer (MBS), 0.8 parts by weight of nano carbon black, 2 parts by weight of dilaurate thiodipropionate, 1.6 parts by weight of two-component antioxidant (for mass ratio 1: 2 Tris(2,4-di-tert-butylphenyl)phosphite and 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl base) benzene mixture), 0.5 parts by weight of adhesion promoter formula (I) compound, 8 parts by weight of auxiliary ...

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Abstract

The invention discloses a vacuum combined pump, and belongs to the technical field of liquid pumps. The vacuum combined pump comprises a base; a water ring vacuum pump and a roots vacuum pump are arranged on the base; the water ring vacuum pump includes a water ring pump body; a water ring rotor is rotationally mounted in the water ring pump body; a water ring air inlet and a water ring air out are formed in the top of the water ring pump body; a working liquid inlet and a working liquid outlet are formed in one side of the water ring pump body; a transmission shaft of the water ring rotor penetrates through the water ring pump body; the roots vacuum pump includes a roots pump body, and a roots rotor rotationally mounted in the roots pump body; the roots pump body is fixedly connected with the water ring pump body; a roots air inlet and a roots air outlet are formed in the roots pump body; one end of a transmission shaft of the water ring rotor is connected with a motor, and the other end is fixedly connected with a transmission shaft of the roots rotor; and the roots air outlet is connected with the water ring air inlet. The vacuum combined pump solves the technical problems of complicated structure, high power consumption and short service life of a vacuum combined pump at present, and has good industrial application prospects and industrial production potential.

Description

technical field [0001] The invention relates to a pump, more particularly to a combined vacuum pump, which belongs to the technical field of liquid pumps. Background technique [0002] Vacuum pumps are widely used in many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture resurgence and vacuum degassing. [0003] However, for vacuum pumps with high vacuum, cavitation often occurs, and the obvious signs of this phenomenon are noise and vibration in the pump. Cavitation will cause damage to the pump body, impeller and other parts, so that the pump cannot work. [0004] Therefore, in order to overcome the occurrence of cavitation, when the vacuum degree or gas pressure required by the pump is not high, it can be selected first in the single-stage pump. If the vacuum degree or exhaust pressure is high, single-stage pumps often cannot meet the requirements, or the pump is required to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C23/00F04C25/02F04C19/00F04C29/00C08L63/00C08L51/04C08L27/06C08K13/06C08K9/06C08K7/08C08K3/04
CPCC08K2201/011C08L63/00C08L2205/025C08L2205/035F04C19/00F04C19/004F04C23/005F04C25/02F04C29/00F04C2240/20C08L51/04C08L27/06C08K13/06C08K9/06C08K7/08C08K3/04
Inventor 孙晓裴吕哲
Owner 湖北兴雨泵业股份有限公司
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