Vacuum roots pump cleaning device for lactide production
By installing a spray ring and suction pipe in the vacuum Roots pump, the problem of wear caused by crystallization is solved by using negative pressure to spray cleaning fluid to clean solid crystals, thus extending the pump's service life and reducing costs.
CN224413874UActive Publication Date: 2026-06-26HENAN XINGHAN BIOTECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202521321248.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-06-26
AI Technical Summary
Technical Problem
In the production of lactide, the vacuum Roots pump suffers a decrease in pumping efficiency due to wear caused by solid crystals, and existing technologies have not been able to effectively solve this problem.
Method used
A vacuum Roots pump cleaning device is designed. By setting a spray ring and a suction pipe in the suction pipe, the cleaning liquid is sprayed into the pump chamber by negative pressure to clean solid crystals. The cleaning liquid can be high-temperature water or organic solvent, and the cleaning is achieved by using the negative pressure of the vacuum Roots pump itself.
Benefits of technology
It extends the service life of the vacuum Roots pump, has a simple structure, is easy to operate and has low cost, and achieves efficient cleaning results.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a vacuum roots pump cleaning device for lactide production, relates to the technical field of chemical equipment, and is mainly used for solving the problems that in the prior art, a vacuum roots pump is abraded by solid crystals, and the air exhaust efficiency is seriously reduced. The cleaning device comprises an exhaust pipe and an exhaust passage which are arranged on the vacuum roots pump, a detachable liquid discharge tank is arranged at the bottom of the exhaust passage, a spray ring is arranged in the exhaust pipe, a suction pipe and a liquid storage box are arranged outside the exhaust pipe, and the spray ring is communicated with the suction pipe and used for sucking cleaning liquid in the liquid storage box into the exhaust pipe and forming spray. According to the cleaning device, the pump cavity and the rotor of the vacuum roots pump can be cleaned only by means of negative pressure generated when the vacuum roots pump works without external power, and the service life of the vacuum roots pump is prolonged. The cleaning device is simple in structure, easy to operate, low in manufacturing cost and high in practicability.
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