A high temperature gas composition calibration device

By designing a three-stage high-temperature calibration chamber and temperature control system, the technical challenge of high-temperature gas composition calibration was solved, enabling accurate calibration of high-temperature gas composition under high-temperature conditions and improving temperature field uniformity and calibration accuracy.

CN122171487APending Publication Date: 2026-06-09BEIJING ZHENXING METROLOGY & TEST INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING ZHENXING METROLOGY & TEST INST
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies cannot calibrate high-temperature gas components under high-temperature conditions, especially due to unsuitable heating methods and the heat resistance issues of optical glass, making it impossible to effectively use high-temperature gas analyzers for calibration.

Method used

A high-temperature gas composition calibration device was designed, which adopts a three-section high-temperature calibration gas chamber, with the middle section being the high-temperature calibration gas chamber and the two ends being protective gas chambers. The heating element is fixed using unshaped refractory material, and cold nitrogen gas is introduced through the protective gas chamber to protect the optical lens. A temperature measuring element and a temperature control system are also configured to achieve the calibration of high-temperature gas composition.

Benefits of technology

It achieves accurate calibration of high-temperature gas composition at temperatures above 1200℃, protects optical lenses from damage, improves temperature field uniformity and calibration accuracy, and solves the problem of the inability to calibrate high-temperature gas composition in existing technologies.

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Abstract

The application provides a high-temperature gas component calibration device, which comprises the following steps: arranging a heating element into a furnace by using a non-shape refractory material; heating the temperature in the furnace to a required high temperature by using the heating element; arranging a three-section high-temperature calibration gas chamber; realizing the smooth input of standard gas by using a standard gas input port arranged on a protection gas cavity and a through hole arranged on a connecting piece, reducing the influence on a temperature field, improving the uniformity of the temperature field; arranging the middle high-temperature calibration gas cavity in the furnace, arranging the two-end protection gas cavities outside the furnace, and inputting cold nitrogen into the protection gas cavities, so that the optical lenses at the two ends can be protected while the standard gas is heated, and the calibration of the high-temperature gas component is realized. The technical scheme of the application is used to solve the technical problem that the high-temperature gas analyzer cannot be calibrated by using high-temperature gas in the prior art.
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