LP special gas tail discharge safety improvement device

By constructing a robust installation foundation and an automatic switching mechanism, the safety hazards of the silane and oxygen tail exhaust system have been resolved, achieving safe separation and stable delivery of gas tail exhaust, ensuring production continuity and convenient equipment maintenance.

CN224516530UActive Publication Date: 2026-07-17TIANJIN ZHONGHUAN PHOTOVOLTAIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ZHONGHUAN PHOTOVOLTAIC TECH CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the tail-end emission systems for silane and oxygen use a single pipeline shared design, which can easily lead to chemical reactions, pipeline blockage, and explosion risks. In addition, they require frequent maintenance, have low equipment utilization, and are difficult to quickly switch emission paths, posing safety hazards.

Method used

The installation foundation is constructed using a base plate and support plate, with a vacuum pump providing power. The switching shaft of the three-way valve, driven by a drive motor, automatically switches between the silane and oxygen exhaust paths. Combined with a sealing gasket, it ensures no leakage. Telescopic pipes and locking structures enable quick installation and replacement. Buffer plates reduce the impact of shocks, and triangular turning grooves provide emergency manual switching functionality.

Benefits of technology

It achieves safe separation, stable delivery, and convenient maintenance of LP special gas tail exhaust, avoids the risk of gas mixing and reaction, ensures continuous production, reduces equipment downtime for maintenance, and improves equipment utilization.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224516530U_ABST
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Abstract

The utility model provides a kind of based on LP special gas tail discharge safety improvement device, it is related to gas emission technical field, including: bottom plate, the upper position of the bottom plate is equipped with a vacuum pump, a group of bolt mounting holes is respectively set in the two sides of vacuum pump, the side of bottom plate is equipped with a vertical support plate, the upper position of support plate is equipped with a drive motor, a positioning shell, the side of positioning shell is equipped with a first branch. By the stable installation foundation of bottom plate and support plate, vacuum pump provides gas delivery power, the switching shaft of three-way valve is realized the automatic switching of silane and oxygen tail discharge path under the drive of drive motor, the switching shaft in positioning shell rotates under the drive of drive motor, the arc communication groove in its inside can selectively communicate drainage pipeline and first branch or second branch, form two independent delivery paths, avoid silane and oxygen mix in pipeline.
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Claims

1. A LP based special gas tailing safety improvement device, comprising: The base plate (1), the first branch (305) and the telescopic pipe (5) are provided. A vacuum pump (2) is installed above the base plate (1). A set of bolt mounting holes are opened on both sides of the vacuum pump (2). The base plate (1) has a vertical support plate (101) on one side. A drive motor (4) and a positioning housing (301) are installed above the support plate (101). A first branch (305) is provided on one side of the positioning housing (301). A second branch (306) is provided on the other side of the positioning housing (301). A vertical telescopic pipe (5) is installed above the first branch (305) and the second branch (306). A locking frame (601) is installed at the bottom of the telescopic pipe (5).

2. A device for improving safety of exhaust gas discharge based on LP special gas according to claim 1, characterized in that, A set of bolt mounting holes arranged in a ring array are respectively opened on the upper part of the support plate (101) and on one side of the drive motor (4).

3. The LP special gas tailing safety improvement device according to claim 1, wherein A rotatably connected switching shaft (302) is installed on the inner side of the positioning housing (301). A connecting groove is opened on the inner side of the switching shaft (302). One side of the switching shaft (302) is connected to the drive shaft of the drive motor (4).

4. The LP special gas tailing safety improvement device according to claim 3, characterized in that, A turning groove is provided on one side of the switching shaft (302).

5. The LP special gas tailing safety improvement device according to claim 1, wherein The bottom of the positioning housing (301) is provided with a drainage pipe (304), and the vacuum pump (2) is provided with an air inlet pipe (201) and an air outlet pipe (202) on one side. The air outlet pipe (202) is connected to the drainage pipe (304) on one side.

6. The LP special gas tailing safety improvement device according to claim 3, wherein A hidden groove is opened on the outer side of the switching shaft (302), a sealing gasket (303) is installed on the inner side of the hidden groove, and a buffer plate (307) is attached to the inner side of the switching shaft (302). The positioning housing (301), the switching shaft (302), the sealing gasket (303), the drainage pipe (304), the first branch (305), the second branch (306), and the buffer plate (307) cooperate with each other to form a three-way valve (3). The buffer plate (307) and the inner wall of the switching shaft (302) are in contact.

7. The safety improvement device for LP special gas exhaust according to claim 1, characterized in that, A support ring is provided above the first branch (305) and the second branch (306), and a positioning sleeve is provided on each side of the support ring. A horizontal positioning rod (602) is inserted inside the positioning sleeve. A locking frame (601) is provided between the two positioning rods (602). The locking frame (601) and the positioning rod (602) cooperate to form a locking structure (6).

8. The LP special gas tailing safety improvement device according to claim 1, wherein, The telescopic pipe (5) is provided with a stabilizing ring at the upper and lower positions respectively. The side of the locking frame (601) and the side of the stabilizing ring are in slight contact. A sliding groove is opened on one side of the locking frame (601). A support spring is installed on the outer side of the positioning rod (602). An annular groove is opened on one side of the positioning rod (602). A snap ring is installed on the inner side of the annular groove.