Multi-stage dry Roots vacuum pump

A Roots vacuum pump, dry technology, applied in the direction of rotary piston pump, pump, pump components, etc., can solve the problems of not adapting to the requirements of energy saving, environmental protection and low emission, limited vacuum degree, large volume, etc., to achieve compact structure and installation. Aspect, small size effect

Inactive Publication Date: 2016-10-12
JIANGYIN HUAXI ENERGY CONSERVATION TECH CO LTD
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  • Application Information

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Problems solved by technology

[0002] At present, in the field of vacuum applications, there are still a large number of various types of vacuum pumps that use high energy consumption and high pollution emissions, such as oil-sealed vacuum pumps such as rotary vane vacuum pumps and slide valve vacuum pumps that use a lot of oil consumption and exhaust emissions, and high energy consumption. There are a lot of waste liquid, Liquid ring vacuum pumps for exhaust gas discharge, these vacuum pumps are no longer suitable for the current national requirements for energy saving, en

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  • Multi-stage dry Roots vacuum pump
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  • Multi-stage dry Roots vacuum pump

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[0026] See Figure 1~4 , The present invention relates to a multi-stage dry Roots vacuum pump. The multi-stage dry Roots vacuum pump includes a pump body 1, and the pump body 1 includes a cooling water spacer 1.1 wrapped in an outer layer. The inner cavity of the pump body 1 is divided into a plurality of independent pump cavities along its axial direction. Each pump cavity includes an inner cavity 1.2 and an outer cavity 1.3 (inner cavity) located between the inner cavity 1.2 and the cooling water spacer 1.1. 1.2 and the outer cavity 1.3 are mutually connected), the inner cavity 1.2 of the front and rear adjacent pump cavities is connected to the outer cavity 1.3 (the inner cavity 1.2 is the suction cavity, and the outer cavity 1.3 is the exhaust cavity, such as Figure 4 As shown, the exhaust cavity of the previous stage pump cavity is connected to the suction cavity of the next stage pump cavity);

[0027] A shaft 6 penetrates through the pump body 1, and a plurality of pairs ...

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Abstract

The invention is a multi-stage dry Roots vacuum pump. The pump body (1) includes a cooling water spacer (1.1) wrapped in the outer layer, and the inner chamber of the pump body (1) is divided into a plurality of mutually independent Each pump cavity includes an inner cavity (1.2) and an outer cavity (1.3) between the inner cavity (1.2) and the cooling water spacer (1.1), and the inner cavity (1.2) of the adjacent pump cavity ) communicates with the outer cavity (1.3); the pump body (1) is pierced with a shaft (6), on which there are multiple pairs of rotors (5), and each pump cavity is provided with a pair of rotors (5) , the rotor (5) includes a driving rotor (5.1) and a driven rotor (5.2) that mesh with each other and are located in the inner cavity (1.2), and the driving rotor (5.1) and the driven rotor (5.2) are respectively sleeved on the driving shaft ( 6.1) and on the driven shaft (6.2). The invention discloses a multi-stage dry Roots vacuum pump, which has the advantages of simple structure, convenient use, low failure rate and the ability to meet higher vacuum degree requirements.

Description

technical field [0001] The present invention relates to a vacuum pump, in particular to a multi-stage dry Roots vacuum pump, which has no oil pollution, no waste gas, no waste liquid discharge, and can achieve a higher vacuum degree and higher multi-stage dry Roots vacuum pump. It belongs to the technical field of vacuum pumps. Background technique [0002] At present, in the field of vacuum applications, there are still a large number of various types of vacuum pumps that use high energy consumption and high pollution emissions, such as oil-sealed vacuum pumps such as rotary vane vacuum pumps and slide valve vacuum pumps that use a lot of oil consumption and exhaust emissions, and high energy consumption. There are a lot of waste liquid, Liquid ring vacuum pumps for exhaust gas discharge, these vacuum pumps are no longer suitable for the current national requirements for energy saving, environmental protection and low emissions; [0003] At the same time, conventional Root...

Claims

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Application Information

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IPC IPC(8): F04C23/02F04C25/02F04C29/04F04C18/12
CPCF04C23/02F04C18/126F04C25/02F04C29/04F04C2220/10
Inventor 龙晋
Owner JIANGYIN HUAXI ENERGY CONSERVATION TECH CO LTD
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