自带干燥气体生成装置的干式真空泵
By integrating a molecular sieve air separation nitrogen generation device into a dry vacuum pump, the problem of dry vacuum pumps not being equipped with dry gas generation devices in chemical synthesis laboratories has been solved, achieving nitrogen self-sufficiency and widespread application, reducing costs and noise, and avoiding the accumulation of corrosive solvents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG VALUE MECHANICAL & ELECTRICAL PROD CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dry vacuum pumps are not equipped with dry gas generation devices in chemical synthesis laboratories, which makes it impossible to effectively avoid the accumulation of corrosive solvents, thus limiting their application. In addition, large nitrogen generators occupy a large area and are expensive, and nitrogen cylinders are used frequently and are also costly.
The dry gas generating device is integrated into a dry vacuum pump. The nitrogen generating device, which uses molecular sieve air separation to generate nitrogen, uses air as raw material. It includes a compressor, condenser and filter, and achieves nitrogen self-sufficiency, avoiding dependence on nitrogen cylinders and high-power nitrogen generators.
It has enabled the widespread application of dry vacuum pumps, reduced floor space and costs, lowered the noise and power requirements for nitrogen generation, provided nitrogen self-sufficiency, and avoided the accumulation of corrosive solvents.
Smart Images
Figure CN224515401U_ABST
Abstract
Claims
1. Dry vacuum pump with a dry gas generating device, characterized in that: The dry vacuum pump with its own dry gas generating device includes: The pump body (2) has a nitrogen purging inlet (21); The nitrogen generating device (3) has a nitrogen outlet, which is connected to the nitrogen purging inlet (21); Among them, the nitrogen generating device (3) is a nitrogen generating device (3) that uses molecular sieve air separation to produce nitrogen. The nitrogen generating device (3) includes a compressor (31), a condenser (32), a filter (33) and a molecular sieve (34).
2. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: The dry vacuum pump with its own dry gas generating device also includes a housing (1), the pump body (2) and the nitrogen generating device (3) are all located in the housing (1); the dry vacuum pump is a screw pump.
3. The dry vacuum pump with a self-contained dry gas generating device according to claim 2, characterized in that: The pump body (2) and the nitrogen generating device (3) are distributed vertically.
4. The dry vacuum pump with a self-contained dry gas generating device according to claim 3, characterized in that: The housing (1) is provided with a horizontal partition, which divides the housing (1) into upper and lower chambers. The pump body (2) is located in the upper chamber (11), and the nitrogen generating device (3) is located in the lower chamber (12).
5. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: The nitrogen generating device (3) also includes a gas storage tank (35).
6. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: A filter mounting cavity (13) is formed on the housing (1), and the side of the filter mounting cavity (13) is open. The filter (33) is installed in the filter mounting cavity (13).
7. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: The nitrogen generating device (3) also includes an air inlet, at which a filter device (38) is provided.
8. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: The power of the compressor (31) is not greater than 500W; and / or, The noise level of the nitrogen generating device (3) is less than 60 dB.
9. The dry vacuum pump with a self-contained dry gas generating device according to claim 1, characterized in that: The nitrogen outlet is connected to the nitrogen purging inlet (21) via a gas pipe (36), and a valve (37) is provided on the gas pipe (36).
10. The dry vacuum pump with a self-contained dry gas generating device according to claim 9, characterized in that: The valve (37) on the gas pipe (36) is a solenoid valve (37). The dry vacuum pump with its own dry gas generating device also includes a controller, and the solenoid valve (37) is controlled by the controller.