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Broad-spectrum corrosion-resistant water ring vacuum pump

A technology of water ring vacuum pump and corrosion resistance, which is applied in the field of broad-spectrum corrosion resistant water ring vacuum pump, can solve problems such as reduction, achieve the effects of enhancing wear resistance, solving easy cavitation, and improving anti-corrosion ability

Active Publication Date: 2015-04-15
ZIBO RUIZHI VACUUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above that the anti-corrosion performance of the water ring vacuum pump still needs to be improved. On the premise of reducing the user's investment, it can meet the use requirements of the corrosive environment as much as possible.

Method used

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  • Broad-spectrum corrosion-resistant water ring vacuum pump

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like figure 1 and figure 2 As shown, the materials of the pump body 1 , the pump cover 7 and the pump shaft 8 of the present invention are all cast steel, which ensures the mechanical strength of the water ring vacuum pump under the premise of controlling the material cost. The impeller 2 is set on the pump shaft 8, and the disc 6 is set at both ends of the impeller 2. The inner wall of the pump body 1 and the pump cover 7 is melted and pressed with polyvinylidene fluoride lining 9; the pump shaft 8 at both ends of the impeller 2 is The sleeve sleeve 4, the disc 6, the sleeve 4 and the impeller 2 are all formed by melting and pressing polyvinylidene fluoride, and the molded products have good mechanical strength and toughness due to the high melt viscosity of polyvinylidene fluoride; And in a wide temperature range, it is no...

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Abstract

The invention discloses a broad-spectrum corrosion-resistant water ring vacuum pump and belongs to the field of vacuum equipment. The broad-spectrum corrosion-resistant water ring vacuum pump comprises a pump body, a pump cover and a pump shaft which are made of metal. An impeller is sleeved on the pump shaft. Discs are disposed at two ends of the impeller. The broad-spectrum corrosion-resistant water ring vacuum pump is characterized in that a polyvinylidene fluoride lining is melted and pressed on the inner wall of each of the pump body and the pump cover, shaft sleeves are sleeved on the pump shaft at two ends of the impeller, the discs, the shaft sleeves and the impeller are formed by melted pressing with polyvinylidene fluoride. One end of each shaft sleeve is matched and assembled with a hub while the other end of each shaft sleeve is matched and assembled with a locking nut on the pump shaft. Due to the fact that polyvinylidene fluoride has high melting viscosity, the product formed by polyvinylidene fluoride has good mechanical strength and toughness. In a wide temperature range, the water ring vacuum pump has good stability. Wear resistance, corrosion resistance and impact resistance of the water ring vacuum pump are improved effectively. The problems that the impeller is prone to cavitation and the lining drops easily are solved. A plurality of seal faces are formed between the impeller and the shaft sleeves. Comprehensive corrosion resistance of the water ring vacuum pump is achieved.

Description

technical field [0001] The invention belongs to the technical field of vacuum equipment, and in particular relates to a broad-spectrum corrosion-resistant water ring vacuum pump. Background technique [0002] In the chemical, pharmaceutical, papermaking, building materials, plastics, textile and other industries, especially in the production links such as vacuum transportation, vacuum precipitation, negative pressure distillation, etc., water ring vacuum pumps are mostly used to suck and transport gases. In the process of use, the corrosive components contained in the gas are easy to corrode the water ring vacuum pump, which seriously shortens the service life of the water ring vacuum pump and increases the user's investment. Therefore, people are scrambling to improve the anti-corrosion performance of water ring vacuum pumps by various means. Many types of water ring vacuum pumps have appeared in the market, but there are still many disadvantages in the actual use process. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D17/10F04D17/18
Inventor 王强张玉瑞
Owner ZIBO RUIZHI VACUUM EQUIP
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