A gas temperature control device for a gas analyzer

Abstract

The invention relates to the field of gas detecting instruments, in particular to a gas chamber temperature control device for a gas analyzer. The device comprises a gas chamber pipe, a heating part, a preheating pipe, a heat conducting part and a temperature sensor. A gas inlet pipe of the gas chamber pipe is connected with the preheating pipe. The heating part is arranged outside the wall of the gas chamber pipe. A gap is reserved between the heating part and the gas chamber pipe to form a gas isolating layer. The heating part is arranged on the heat conducting part, connected with a power source and used for heating and dissipating heat to the preheating pipe and the heat conducting part. The temperature sensor is arranged in the gas inlet pipe of the gas chamber pipe, so that gas is uniformly preheated in the preheating pipe and introduced into the gas chamber pipe after the target temperature is reached; the heat conducting part conducts heat and keeps temperature of the gas chamber pipe, so that the gas chamber pipe and the gas, to be analyzed, in the pipe are kept in a constant temperature environment; condensation is prevented from being generated on the inner wall of the gas chamber pipe, the influence on the concentration of the gas to be analyzed from the temperature can be avoided, and the accuracy of the analysis result is improved.

Description

technical field [0001] The invention relates to the field of gas detection instruments, in particular to a gas temperature control device for a gas analyzer. Background technique [0002] Usually, when optical analysis instruments are used to monitor the flue gas emitted from industrial sites, the measured concentration usually changes with the change of gas temperature in the analysis gas chamber. Therefore, when the analytical instrument works in an environment with a large temperature difference, the measured data cannot truly reflect the concentration of the gas to be analyzed, and it is easy to cause condensation on the inner wall of the gas chamber tube. Therefore, keeping the gas to be analyzed at a relatively constant temperature will be an important guarantee for the accuracy of daily monitoring data. [0003] At present, from the perspective of the prior art, the invention patent application with the application number 201310205522.0 discloses a gas chamber tube a...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a gas temperature control device for a gas analyzer to solve the problem of the lack of a relatively constant temperature environment when the existing gas analyzer is used, or the uneven heating temperature of the gas to be analyzed, resulting in low test accuracy, and the gas chamber and The contact setting of the heating element is easy to damage the glass air chamber

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