气体分析仪校准装置
By designing a gas analyzer calibration device, utilizing high-concentration and low-concentration gas source modules, a mixing module, and a calibration module, the problem of multi-range self-switching analyzers being unable to detect standard gas concentration crossing the connection point during calibration was solved, thus achieving accurate calibration and signal stability of the gas analyzer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JINGXU ENERGY TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing multi-range self-switching analyzers cannot effectively detect the dynamic process of standard gas concentration crossing the connection point during periodic calibration, resulting in a lack of guarantee for detection accuracy and signal stability.
A gas analyzer calibration device was designed, including high-concentration and low-concentration gas source modules, a mixing module, a calibration module, and an exhaust module. The gas pressure and flow rate are controlled by a pressure reducing valve and a flow valve, gas mixing is achieved by a mixing chamber, and the concentration of the mixed gas is detected by a high-precision gas concentration sensor, thereby achieving accurate calibration of the gas analyzer.
It enables precise calibration of the gas analyzer, improves detection accuracy and signal stability, and is easy to operate.
Smart Images
Figure CN224518699U_ABST
Abstract
Claims
1. A gas analyzer calibration device, characterized by, It includes a high-concentration gas source module, a low-concentration gas source module, a mixing module, a calibration module, and an exhaust module. The high-concentration gas source module includes a gas tank, which is connected to the mixing module via an inlet pipe that is sequentially connected to a pressure reducing valve and a flow valve. The low-concentration gas source module includes a second gas tank, and the first gas tank is connected to the mixing module through an inlet pipe second that is sequentially connected to a pressure reducing valve second and a flow valve second. The mixing module includes a mixing chamber, which contains a premixing chamber 1 connected to an air inlet pipe 1 and a premixing chamber 2 connected to an air inlet pipe 2. There is a mixing chamber between the premixing chamber 1 and the premixing chamber 2. The outlet end of the mixing chamber is also connected to a mixing concentration detection device. The calibration module includes a calibration chamber for connection to a gas analyzer; The exhaust module includes an exhaust pipe, and an exhaust valve is provided on the exhaust pipe.
2. The gas analyzer calibration device of claim 1, wherein, A pressure sensor is installed between the gas tank and the pressure reducing valve, a pressure sensor is installed between the pressure reducing valve and the flow valve, and a flow sensor is installed between the flow valve and the mixing chamber.
3. The gas analyzer calibration device of claim 1, wherein, A pressure sensor three is installed between the gas tank two and the pressure reducing valve two, a pressure sensor four is installed between the pressure reducing valve three and the flow valve two, and a flow sensor two is installed between the flow valve two and the mixing chamber.
4. The gas analyzer calibration device of claim 1, wherein, Both the first and second premixing chambers have circular cross-sections, and a mixing chamber is formed between the first and second premixing chambers. Both the first and second air intake pipes are located away from the mixing chamber.
5. The gas analyzer calibration device of claim 4, wherein, The first air intake pipe is arranged tangentially along the first premixing chamber, and the second air intake pipe is arranged tangentially along the second premixing chamber.
6. The gas analyzer calibration device of claim 1, wherein, A flow valve and a flow sensor are installed between the mixing chamber and the calibration chamber.