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Cooling type roots blower

A Roots blower and cooling type technology, which is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of Roots blower damage, vacuum degree reduction, and increased gap, so as to improve vacuum degree and service life , good cooling effect

Pending Publication Date: 2022-03-22
天津金键航天设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing Roots blower, under the effect of high-speed rotation, in order to prevent friction between the male rotor, female rotor and the inner wall of the housing due to resistance, the existing improvement measures are to increase the distance between the male rotor, the female rotor and the inner wall of the housing. The gap between them; resulting in reduced vacuum and easy air leakage; and reducing the gap between the male rotor, the female rotor and the inner wall of the housing, when the working temperature and the ambient temperature rise, the material of the main shaft or the slave shaft Expansion, causing friction between the male rotor, female rotor and the inner wall of the housing, resulting in damage to the Roots blower

Method used

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  • Cooling type roots blower
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specific Embodiment approach

[0034] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. , any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the technical content disclosed in the present invention without affecting the effect and purpose of the present invention. .

[0035] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in t...

Embodiment 1

[0037] Such as Figure 1 to Figure 5 As shown, a cooling type Roots blower includes a housing 1, and the interior of the housing 1 is provided with: a rotor cavity 2 and a high-precision gear cavity 3, and the high-precision gear cavity 3 is located in the rotor On the left side of the cavity 2, the inside of the rotor cavity 2 is provided with a male rotor 21 and a female rotor 22. The male rotor 21 and the female rotor 22 are used in conjunction with each other. The inside of the high-precision gear cavity 3 is provided with Driving gear 31 and driven gear 32, the inside of the housing 1 is also provided with: driving shaft 4, driven shaft 5, first water outlet cavity 6, second water outlet cavity 7, first water inlet cavity 8 and the second water inlet cavity 9, the first water outlet cavity 6 and the second water outlet cavity 7 are distributed on the left side of the high-precision gear cavity 3, and the second water outlet cavity 7 is located at the The lower side of the ...

Embodiment 2

[0054] Such as Figure 1 to Figure 5 As shown, a cooling type Roots blower includes a housing 1, and the interior of the housing 1 is provided with: a rotor cavity 2 and a high-precision gear cavity 3, and the high-precision gear cavity 3 is located in the rotor On the left side of the cavity 2, the inside of the rotor cavity 2 is provided with a male rotor 21 and a female rotor 22. The male rotor 21 and the female rotor 22 are used in conjunction with each other. The inside of the high-precision gear cavity 3 is provided with Driving gear 31 and driven gear 32, the inside of the housing 1 is also provided with: driving shaft 4, driven shaft 5, first water outlet cavity 6, second water outlet cavity 7, first water inlet cavity 8 and the second water inlet cavity 9, the first water outlet cavity 6 and the second water outlet cavity 7 are distributed on the left side of the high-precision gear cavity 3, and the second water outlet cavity 7 is located at the The lower side of th...

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Abstract

The invention discloses a cooling type Roots blower, which solves the problem of air leakage caused by overlarge gaps between blade tips of a male rotor and a female rotor and the inner wall of a shell by additionally arranging cooling circulation medium runners in the male rotor and the female rotor, and improves the vacuum degree. The clearance between the blade tips of the male rotor and the female rotor and the inner wall of the shell ranges from 0.01 mm to 0.5 mm; therefore, the effects that the vacuum degree is higher, the pressure difference degree is larger, the blades do not rub with a pump shell, the speed of escaped airflow is higher, heat generated between the blades is increased, heat generated by cooling circulation of a constant-temperature medium at blade tips and high rotation is absorbed, a stable state is achieved in cold regions and heated media are put in, and a low-temperature medium is added in hot regions, so that the heat generated by high rotation is reduced. And a stable state is achieved.

Description

technical field [0001] The invention belongs to the technical field of Roots blower, in particular to a cooling type Roots blower. Background technique [0002] The Roots blower is a volumetric fan, with the end face of the impeller and the front and rear end covers of the fan. The principle is a rotary compressor that uses two leaf-shaped rotors to move relative to each other in the cylinder to compress and deliver gas. This type of blower has a simple structure and is easy to manufacture. It is widely used in aquaculture aeration, sewage treatment aeration, and cement transportation. It is more suitable for gas transportation and pressurization systems in low-pressure situations, and can also be used as a vacuum pump. [0003] The existing Roots blower, under the effect of high-speed rotation, in order to prevent friction between the male rotor, female rotor and the inner wall of the housing due to resistance, the existing improvement measures are to increase the distance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/12F04C29/04
CPCF04C18/126F04C29/042
Inventor 叶贵锋王轩崔一卢祥林陈斌李峰李峰峰谭风云
Owner 天津金键航天设备有限公司
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