Two-stage rotary blade type vacuum pump

A technology for rotary vane vacuum pumps and pump chambers, which is applied to rotary piston pumps, rotary piston/swing piston pump components, rotary piston machinery, etc., and can solve the problems of reducing the quality of the working environment, high noise of vacuum pumps, and extreme pressure. Small and other problems, to achieve a wide range of use, increase the limit pressure, prolong the life of the effect

Inactive Publication Date: 2016-07-13
HAIMEN HAIZHEN VACUUM EQUIP
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  • Abstract
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Problems solved by technology

[0002] Vacuum pumps are widely used in production and scientific research departments such as metallurgy, machinery, military industry, electronics, chemical industry, light industry, petroleum and medicine. Among the equipment for obtaining vacuum, rotary vane vacuum pumps are simple and compact in structure, small in size, and It has the advantages of high reliability, convenient use, and easy maintenance. It is currently the most widely used vacuum pump. However, the current single-stage rotary vane vacuum pump has low vacuum degree and low ultimate pressure. It can only obtain low vacuum and is not suitable for vacuum pumps. In the case of high precision requirements, the scope of use is small, and the noise of the vacuum pump is large during operation, which reduces the quality of the working environment

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  • Two-stage rotary blade type vacuum pump

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Embodiment Construction

[0012] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0013] Such as figure 1 As shown, a two-stage rotary vane vacuum pump includes a pump body 1, a first pump chamber 3 and a second pump chamber 2 are arranged in the pump body 1, and an inlet communicating with the first pump chamber 3 is provided on the pump body 1. The air pipe 9, the first exhaust port 8 of the first pump chamber 3 communicate with the second pump chamber 2 through the serial passage 12, the second pump chamber 2 is provided with a second exhaust port 7, the first pump chamber 3 and the second pump chamber In the two pump chambers 2, there are rotor 4, three rotating vanes 6 and vane springs 5 ​​evenly distributed on the central plane of the rotor. Cut, the rotary vane 6 is provided with a rotary vane spring 5, and the rotary...

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Abstract

The invention discloses a two-stage rotary blade type vacuum pump which comprises a pump body.The pump body is internally provided with a first pump cavity and a second pump cavity.The pump body is provided with an air inlet pipe communicated with the first pump cavity.A first exhaust port of the first pump cavity is communicated with the second pump cavity through a serial connection channel, a second exhaust port is formed in the second pump cavity, the first pump cavity and the second pump cavity are internally provided with rotary blades, rotary blade springs and rotors, the rotary blades are disposed on the rotors, the outer rings of the rotors are tangential to the inner surfaces of the pump cavities, the rotary blade springs are disposed in the rotary blades, and the rotary blades are attached to the inner walls of the pump cavities through the rotary blade springs.According to the two-stage rotary blade type vacuum pump, two-stage rotary blade type design is adopted in the pump body, so that the ultimate pressure intensity of the vacuum pump is increased, a high vacuum degree can be obtained, the use range is wider, and practicality is good.

Description

technical field [0001] The invention relates to the technical field of vacuum pumps, in particular to a two-stage rotary vane vacuum pump. Background technique [0002] Vacuum pumps are widely used in production and scientific research departments such as metallurgy, machinery, military industry, electronics, chemical industry, light industry, petroleum and medicine. Among the equipment for obtaining vacuum, rotary vane vacuum pumps are simple and compact in structure, small in size, and It has the advantages of high working reliability, convenient use, and easy maintenance. It is the most widely used vacuum pump at present. However, the current single-stage rotary vane vacuum pump has low vacuum degree and low ultimate pressure. It can only obtain low vacuum and is not suitable for vacuum pumps. In the case of high precision requirements, the scope of use is small, and the noise of the vacuum pump is large during operation, which reduces the quality of the working environme...

Claims

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Application Information

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IPC IPC(8): F04C23/00F04C25/02F04C18/344F04C29/06F04C29/12F04C29/00
CPCF04C23/003F04C18/344F04C25/02F04C29/0092F04C29/063F04C29/12
Inventor 陈敬华
Owner HAIMEN HAIZHEN VACUUM EQUIP
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