Dry-type claw type vacuum pump

A claw-type vacuum pump and dry-type technology, applied in the direction of rotary piston pumps, pumps, pump components, etc., can solve problems such as low efficiency, corrosion resistance, and inability to meet industrial needs, and achieve high efficiency, corrosion resistance, and cost reduction Effect

Pending Publication Date: 2018-12-11
深圳市泉天下智能装备科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it cannot meet the industrial needs of high-efficiency operation and long-term work in corrosive environments in fine chemicals, chemical pharmaceuticals, and environmental engineering applications
[0006] In addition, the traditional dry claw vacuum pump is driven by a three-phase asynchronous motor, and its efficiency is lower than that of a permanent magnet synchronous motor.
[0007] In summary, the claw-type dry vacuum pump has problems such as low efficiency and no corrosion resistance in the practical application of fine chemicals and chemical pharmaceuticals, so it is necessary to improve it

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] refer to figure 1 , figure 2 , the present invention provides a dry claw vacuum pump, including a driver 1, a permanent magnet synchronous motor 2, a coupling, a pump body and a muffler 7, the pump body includes a pump housing 3, an intake and exhaust housing 4 and a mounting The driving shaft, driven shaft, driving rotor 9, driven rotor 10, synchronous gear, bearing and dynamic seal in the pump housing 3, the permanent magnet synchronous motor 2 is connected with the driving shaft through a coupling, so The synchronous gear is used for the transmission between the driving shaft and the driven shaft.

[0026] The front end of the pump housing 3 is a gear chamber, the synchronous gear, bearing and dynamic seal are installed in the gear chamber, the rear end of the pump housing 3 and the intake and exhaust housing 4 form a rotor chamber...

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PUM

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Abstract

The invention discloses a dry-type claw type vacuum pump. The vacuum pump comprises a motor, a coupling, a pump body and a muffler, wherein the pump body comprises a pump shell, an air inflow and outflow shell, a driving shaft, a driven shaft, a driving rotor, a driven rotor, a synchronous gear, a bearing and a dynamic seal, the rear end of the pump shell forms a rotor cavity with the air inflow and outflow shell; the air inflow and outflow shell is provided with an air inlet and an air outlet, which are respectively communicated to the rotor cavity, the air inlet is further connected with anair inflow pipeline, the air outlet is further connected with the muffler, the air inflow pipeline, the air inlet, the rotor cavity, the air outlet and the muffler form a gas pumping passage, and thegas pumping passage forms a WC-DLC superlattice nano-multilayer anticorrosive coating on a surface through a magnetron sputtering process. By the design, the dry-type claw type vacuum pump can be usedfor effectively preventing corrosive gas from corroding the surface of a part.

Description

technical field [0001] The invention relates to the field of vacuum pump design, in particular to a dry claw vacuum pump. Background technique [0002] With the rapid development of biopharmaceutical, food, semiconductor, chemical and thin film industries, the demand for high vacuum and high cleanliness production environment is becoming increasingly urgent. Traditional high vacuum oil diffusion pumps, oil-sealed mechanical pumps, etc. have Oil, not suitable for pumping high-oxygen, explosive and corrosive gases, and not easy to produce a high-clean production environment; in the pharmaceutical industry negative pressure distillation, rectification, sublimation and other processes, as well as negative pressure evaporation, drying, concentration , Crystallization, dehydration, decolorization, chemical reaction absorption and vacuum conveying materials and other processes all require production environments with different vacuum degrees and high cleanliness. Traditional recip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/14F04C25/02F04C23/02F04C29/00F04C29/04
CPCF04C18/084F04C18/14F04C23/02F04C25/02F04C29/00F04C29/0042F04C29/04F04C2280/04
Inventor 卜学兵林文泉易宇彭勇鲁天玲王龙武韦冬冬刘照理
Owner 深圳市泉天下智能装备科技有限公司
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