A dry heat type geothermal resource collecting device and a use method thereof

By installing a filter cleaning mechanism and a drive mechanism in the dry-heat geothermal resource collection device, the problem of unstable steam flow rate was solved, the steam flow rate was stabilized and the heat exchange time was shortened, thus improving the collection efficiency.

CN115751743BActive Publication Date: 2026-06-26GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY
Filing Date
2022-11-16
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing dry-heat geothermal resource collection devices exhibit increased steam flow velocity and shortened heat exchange time when the gas pressure is too high, while the steam flow velocity is low when the gas pressure is too low, prolonging the heat exchange time and resulting in unstable steam flow velocity.

Method used

A filter and cleaning mechanism are installed inside the collection pipe. The cleaning mechanism cleans the filter in multiple directions, and the drive mechanism changes the gas flow speed in the exhaust pipe according to the steam flow speed to ensure stable airflow.

Benefits of technology

The cleaning mechanism keeps the filter clean, and the drive mechanism adjusts the airflow speed, stabilizes the steam flow rate, shortens the heat exchange time, and improves steam collection efficiency.

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    Figure CN115751743B_ABST
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Abstract

The application discloses a kind of based on dry hot geothermal resource collection device and use method, it is related to geothermal collection field, including the collection pipeline for collecting dry hot geothermal resource, the filter screen for filtering steam is arranged in the collection pipeline, and the cleaning mechanism for filtering filter screen is also arranged in the collection pipeline, the side wall of the collection pipeline is provided with a placing box, and the filter screen side wall is provided with an exhaust pipeline;The based on dry hot geothermal resource collection device and use method, the surface of filter screen is conveniently cleaned in multiple directions by the setting of cleaning mechanism, the cleaning effect is better, and the gas flow velocity in exhaust pipeline can be changed according to the flow velocity of steam by the setting of driving mechanism, so that when the air pressure of collection pipeline is too small, the air flow change in collection pipeline can be increased under the condition that the exhaust outlet gas flow rate is unchanged, the steam flow rate is increased, and the heat exchange time is reduced.
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