A drainage structure for the gas collection hood of an atomic absorption spectrometer with filtration function.

By installing a water collection tank and a flow guiding mechanism at the bottom of the inner wall of the gas collection hood of the atomic absorption spectrometer, the problem of direct condensate dripping is solved, enabling rapid collection of condensate, preventing equipment corrosion, and improving the efficiency of equipment use and waste gas treatment.

CN224286693UActive Publication Date: 2026-05-26YUNNAN GOLD MINING GRP PRECIOUS METAL TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN GOLD MINING GRP PRECIOUS METAL TESTING CO LTD
Filing Date
2025-07-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing atomic absorption spectrometers, condensate easily forms on the inner wall of the gas collection hood and the inner wall of the exhaust duct during the waste gas collection process and drips directly onto the upper surface of the instrument, causing equipment corrosion and damage and reducing its efficiency.

Method used

A water collection tank is installed at the bottom of the inner wall of the gas collection hood, and a flow guiding mechanism is installed, including a flow guide frame and a funnel. Exhaust gas enters the interior of the gas collection hood through the air inlet hole on the inner wall of the flow guide frame. Condensate flows to the water collection tank through the top slope of the flow guide frame and the conduit. Condensate on the top of the inner cavity of the gas collection hood and the inside of the exhaust pipe flows to the flow guide pipe through the funnel and finally enters the water collection tank, achieving rapid collection.

Benefits of technology

This effectively prevents condensate from dripping directly onto the atomic absorption spectrometer, thus preventing equipment corrosion and improving equipment efficiency and waste gas treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224286693U_ABST
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Abstract

This utility model discloses a drainage structure for a gas collection hood of an atomic absorption spectrometer with filtration function. It includes an atomic absorption spectrometer, with a gas collection hood suspended above the exhaust port of the spectrometer. A water collection trough for collecting condensate is provided at the bottom of the inner wall of the gas collection hood, and a flow guiding mechanism for auxiliary condensate collection is installed inside the gas collection hood. This utility model collects condensate from the inner wall of the gas collection hood through the water collection trough at the bottom of the inner wall. Exhaust gas enters the interior of the gas collection hood through the air inlet hole on the inner wall of the flow guide. Condensate at the top of the inner cavity of the flow guide flows through the inclined surface at the bottom of the funnel and the outer arc surface of the guide tube to the interior of the water collection trough. Condensate at the top of the inner cavity of the gas collection hood and inside the exhaust pipe falls into the funnel and flows through the inside of the flow guide to the interior of the water collection trough, thus achieving rapid condensate collection and preventing condensate from falling onto the atomic absorption spectrometer and causing equipment corrosion and damage.
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