一种适用于中高温地热田的气体取样装置

By using cryogenic liquid nitrogen gas loop cooling and filter scraper assembly in the gas sampling device, the problems of temperature rise and impurity influence during gas sampling in medium- and high-temperature geothermal fields were solved, achieving rapid cooling and effective cleaning of the gas, ensuring stable equipment operation and data accuracy.

CN119469940BActive Publication Date: 2026-07-17INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Filing Date
2024-10-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During gas sampling in medium- and high-temperature geothermal fields, the high-temperature gas causes a sharp rise in the temperature of the sampling equipment, affecting the equipment's working efficiency, especially the normal operation of electrical equipment. Furthermore, the high-temperature gas contains particulate impurities such as dust, which affects subsequent observation and research.

Method used

Rapid cooling is achieved by using a first and second ring pipe filled with cryogenic liquid nitrogen gas. Combined with a filtration mechanism and cleaning components, the gas is guided to cool down by dividing the area through an annular baffle, and impurities are cleaned by a filter plate and scraper assembly to prevent impurity accumulation.

Benefits of technology

It enables rapid cooling of gases from medium- and high-temperature geothermal fields, preventing a decrease in equipment efficiency, and effectively filters and cleans dust and impurities in the gases, ensuring stable operation of the sampling device and data accuracy.

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Abstract

本发明公开了一种适用于中高温地热田的气体取样装置,本发明涉及高温气体取样技术领域,包括第一环管,该第一环管内充满有液氮气体使得管的外表面温度较低,第二环管,该第二环管的直径范围比第一环管大,该一种适用于中高温地热田的气体取样装置,通过设置内部充有低温液氮气体的第一环管和第二环管对中高温地热田气体进行快速降温,防止设备长时间进行气体取样时随着温度的急剧上升其工作效率也会降低特别是相应的电器设备,通过在第一环管和第二环管底部设置多个环形挡板对中高温地热田气体进行分割区域进行引导,防止穿过通气圆孔的中高温地热田气体一部分从第一环管与第二环管之间和第二环管与取样筒内壁之间穿过难以充分与其接触降温。
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