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A Vertical Roots Dry Vacuum Pump

A dry vacuum pump, vertical technology, applied in the direction of rotary piston pumps, rotary piston/swing piston pump components, pumps, etc., can solve the problems of high price and complex structure, and improve efficiency and volumetric efficiency , The effect of facilitating heat dissipation

Active Publication Date: 2016-06-15
ZIBO JINGYAO VACUUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at present, screw vacuum pumps or claw vacuum pumps with complex structures and expensive prices are basically still used in small displacement fields such as medicine and electronics.

Method used

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  • A Vertical Roots Dry Vacuum Pump
  • A Vertical Roots Dry Vacuum Pump
  • A Vertical Roots Dry Vacuum Pump

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Experimental program
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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] In the present invention, based on the gas flow direction in the pump, the end close to the air inlet 2 along the axial direction of the pump shaft 10 is defined as the front end, and the end close to the exhaust port 9 is defined as the rear end accordingly.

[0034] Such as figure 1 As shown, a drive shaft and a driven shaft parallel to each other are installed in the pump casing 1. The drive shaft and the driven shaft constitute the pump shaft 10 of the present invention, and the pump shaft 10 is vertically installed in the pump casing 1. The front end of the pump casing 1 An air inlet 2 is provided, and an air outlet 9 is provided at the rear end, that is to say, the air inlet 2 is located at the top of the pump housing 1, and the air outlet 9 is located at the bottom of the pump housing 1. Four pump chambers 8 are arrange...

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Abstract

The invention discloses a vertical Roots dry-type vacuum pump, which belongs to the technical field of variable capacity vacuum equipment. Afterwards, more than two pump chambers with gradually decreasing volumes are set in sequence, and two Roots rotors with the same structure are installed in each pump chamber; an air flow channel is also opened in the pump casing, and the air flow channel is located on the outer periphery of the pump chamber and is connected with the pump chamber. The pump chambers are arranged in one-to-one correspondence; the air outlet of the pump chamber is connected to the corresponding airflow channel, and the air inlet is connected to the airflow passage corresponding to the adjacent pump chamber on the front side; the air inlet side of the front pump chamber is connected to the air inlet , the air outlet side of the rear pump chamber communicates with the exhaust port. This kind of vertical Roots dry vacuum pump is convenient for the compressed gas to dissipate heat and reduce the heat entering the next pump chamber, which not only improves the vacuuming efficiency of the Roots pump, but also prolongs the service life of the rotor.

Description

technical field [0001] The invention belongs to the technical field of variable capacity vacuum equipment, and in particular relates to a vertical Roots dry vacuum pump. Background technique [0002] With the continuous development of vacuum technology, its application field has been continuously expanded, and it has been widely used in various industrial fields such as machinery, chemical industry, pharmaceuticals, food, papermaking, energy, and aerospace. However, the principle and structure of vacuum pumps used in many fields today are almost the same as those of 30 years ago, without any fundamental changes. Among them, water ring vacuum pumps, water jet vacuum pumps, and reciprocating vacuum pumps are widely used in the field of low vacuum. Water ring vacuum pumps, water jet vacuum pumps and reciprocating vacuum pumps are limited in application in many fields due to environmental pollution problems. [0003] Subsequently, a series of dry vacuum pumps were developed, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/14F04C29/04F04C29/12
Inventor 徐黎明
Owner ZIBO JINGYAO VACUUM EQUIP
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