Multi-pipe shaft converging type vacuum negative pressure drying barrel

By improving the multi-tube shaft confluence design and the central shaft air extraction port, the problems of steam accumulation and low extraction efficiency in the vacuum negative pressure drying barrel are solved, achieving efficient air extraction and material sterilization, thereby improving drying efficiency and material quality.

CN224470595UActive Publication Date: 2026-07-07GUANGXI DIKAI SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI DIKAI SCI & TECH
Filing Date
2025-06-05
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing vacuum negative pressure drying barrels suffer from gas accumulation and low extraction efficiency due to the use of a single central shaft for air extraction, which affects drying efficiency and quality.

Method used

It adopts a multi-pipe shaft confluence design, which forms a multi-channel diversion by setting multiple parallel gas delivery pipe shafts and a central shaft in the tank. Steam is concentrated and output after being gathered through the gas delivery pipe shafts and the central shaft. Combined with a stainless steel rigid cover, it forms a sealed confluence chamber, which improves the gas extraction efficiency. A full-spectrum lamp is installed in the tank for ultraviolet sterilization.

Benefits of technology

It significantly improves steam extraction efficiency, solves the problems of steam accumulation and poor airflow, and achieves efficient drying and sterilization of materials, thereby improving the quality of materials.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224470595U_ABST
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Abstract

The utility model relates to a kind of multi-tube shaft confluence type vacuum negative pressure drying barrel, including barrel body, and fixed on support by the central shaft welded in the both ends of barrel body. Its characterized in that: first air hole is respectively opened in the both ends sealing plate of barrel body, gas pipe shaft is equipped in barrel body, and its both ends are sealed and connected first air hole;Second air hole is equipped on gas pipe shaft;Rigid cover is respectively equipped outside the both ends of barrel body, and rigid cover is enclosed into airtight confluence chamber by the shaft hole of its top and the central shaft and sealing plate;Third air hole is equipped on central shaft, steam in barrel body enters gas pipe shaft from second air hole, enters airtight confluence chamber by first air hole, and then enters central shaft from third air hole and is concentrated and exported from end portion air outlet;The utility model realizes gas shunting by multi-tube shaft, and output after quick and smooth collection, solve the steam accumulation in negative pressure environment in barrel, poor air extraction, low drying efficiency technical bottleneck, significantly optimize material drying uniformity and drying efficiency under vacuum negative pressure environment.
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