Improved slide-valve Roots vacuum unit

A technology of vacuum unit and spool valve pump, applied in mechanical equipment, machine/engine, rotary piston machinery, etc., can solve the problems of low vacuum degree, large energy consumption, small air extraction volume, etc., achieve high vacuum degree and simple maintenance , the effect of large air volume

Inactive Publication Date: 2013-05-08
NANTONG LONGYING VACUUM PUMP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The vacuum pump is an indispensable key equipment in the impregnation system. The degree of vacuum it can draw determines the quality of the impregnation effect and the quality of the product. Therefore, the vacuum degree is particularly high in the production process. The slide valve vacuum pump It is usually widely used in the vacuum impregnation and vacuum drying of transformers, wires and cables, and capacitors in the power industry. It can also be used in vacuum coating, smelting, heat treatment, and electric light sources. low air extraction capacity, in order to solve the above problems, a new technical solution is provided

Method used

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  • Improved slide-valve Roots vacuum unit

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Embodiment Construction

[0012] Such as figure 1 As shown, an improved slide valve Roots vacuum unit of the present invention includes a pump body 1 and a pair of rotors 2 and a shaft 3 arranged in the pump body 1, and the pair of rotors 2 are engaged, and the top of the pump body 1 has an inlet Air port 4, the bottom of the pump body 1 has an exhaust port 5, the bottom of the pump body 1 is connected to the slide valve pump 7 through the bellows 6, a valve 13 is provided between the exhaust port 5 and the bellows 6, and the top of the slide valve pump 7 A cooling water control device 8 is provided, and the slide valve pump 7 is connected with the cooling water control device 8. The slide valve pump 7 is provided with a rotating shaft 9, an eccentric wheel 10, a slide valve 11 and an exhaust valve 12, and an eccentric wheel is arranged outside the rotating shaft 9 10. There is a slide valve 11 on the outside of the eccentric wheel 10, and an exhaust valve 12 is set between the slide valve pump 7 and t...

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Abstract

The invention relates to an improved slide-valve Roots vacuum unit, which comprises a pump body, a pair of rotors and a pair of shafts, wherein the rotors and the shafts are arranged in the pump body, and the rotors are meshed. The improved slide-valve Roots vacuum unit is characterized in that the top part of the pump body is provided with an air inlet; the bottom part of the pump body is provided with an air outlet; the bottom part of the pump body is connected with a slide-valve pump through a corrugated pipe; the top part of the slide-valve pump is provided with a cooling water control device; the slide-valve pump is communicated with the cooling water control device; a rotating shaft, an eccentric wheel, a slide valve and an air release valve are arranged in the slide-valve pump; the eccentric wheel is arranged outside the rotating shaft; and the slide valve is arranged outside the eccentric wheel. The improved slide-valve Roots vacuum unit has the advantages of simple structure, high vacuum degree, high efficiency, energy conservation, high sucking rate and stable performance. Besides, the improved slide-valve Roots vacuum unit is easy to start at ordinary pressure, simple in maintenance and convenient for use.

Description

technical field [0001] The invention relates to a vacuum unit, in particular to an improved slide valve Roots vacuum unit. Background technique [0002] The vacuum pump is an indispensable key equipment in the impregnation system. The degree of vacuum it can draw determines the quality of the impregnation effect and the quality of the product. Therefore, the vacuum degree is particularly high in the production process. The slide valve vacuum pump It is usually widely used in vacuum impregnation and vacuum drying of transformers, wires and cables, and capacitors in the electric power industry. It can also be used in vacuum coating, smelting, heat treatment, electric light source and other industries. Low air extraction capacity, in order to solve the above problems, a new technical solution is provided. Contents of the invention [0003] The purpose of the present invention is to provide an improved slide valve Roots vacuum unit. [0004] The technical scheme adopted in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C25/02F04C18/14
Inventor 樊忠
Owner NANTONG LONGYING VACUUM PUMP
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