A new type of vacuum pump device

CN224315165UActive Publication Date: 2026-06-02XIAMEN CHEM EXPERIMENTATION PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN CHEM EXPERIMENTATION PLANT
Filing Date
2025-07-08
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing vacuum pump devices struggle to balance pumping speed and ultimate vacuum in the medium to high vacuum range, and suffer from poor system stability, large size, cluttered layout, high maintenance and installation space requirements, making modular design difficult to achieve.

Method used

The system employs a reasonable series connection of a back pump, a Roots pump, and a back pump, with each pump operating within its optimal inlet pressure range. The motor directly drives the Roots pump, and the pump body and motor are modularly mounted on the same frame base. A protective cover covers the motor and coupling area, and the cooling water tank and electrical cabinet are integrated on the base frame.

Benefits of technology

It improves overall pumping speed and ultimate vacuum, reduces floor space, enhances power utilization and operational safety, simplifies maintenance procedures, and reduces maintenance costs and downtime.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224315165U_ABST
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Abstract

This utility model provides a novel vacuum pump device, including: a frame base, a Roots pump, a backing pump, a backing pump, a drive motor, a vacuum pump, and a protective cover; the frame base includes a left mounting portion and a right mounting portion; the Roots pump is longitudinally mounted on the left mounting portion, and the Roots pump has two synchronously rotating rotors and is equipped with an inlet and an outlet; the backing pump is connected to the inlet of the Roots pump; the backing pump is connected to the outlet of the Roots pump; the drive motor is used to drive the Roots pump, and the drive motor is connected to the Roots pump through a coupling; the vacuum pump is installed adjacent to the Roots pump and is connected to the backing pump; and the protective cover covers the motor and coupling to prevent accidental contact with high-speed rotating parts, improving operational safety. All pump bodies and motors are arranged on the same frame base, allowing for modular installation and disassembly, enabling quick maintenance, replacement, or expansion, reducing maintenance costs and downtime.
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