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Gas temperature measurement system for gas turbine, gas turbine, and temperature measurement method

A gas temperature and measurement system technology, which is applied in the direction of measuring heat, thermometers, and thermometers using electrical/magnetic components directly sensitive to heat, etc. It can solve the problems of low temperature measurement accuracy and large compensation wire errors, and achieve high measurement accuracy. , low cost, avoid the effect of high temperature

Pending Publication Date: 2021-08-17
CHINA UNITED GAS TURBINE TECH CO LTD
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Problems solved by technology

In order to reduce the use length of the first thermocouple to reduce the cost, there is also a method of connecting the first thermocouple to the compensation wire (cheap metal wire) in the related art, but the compensation wire can only be used within a certain ambient temperature. When the temperature is high, the error of the compensation wire is large, and the accuracy of temperature measurement is low

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  • Gas temperature measurement system for gas turbine, gas turbine, and temperature measurement method
  • Gas temperature measurement system for gas turbine, gas turbine, and temperature measurement method
  • Gas temperature measurement system for gas turbine, gas turbine, and temperature measurement method

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Embodiment Construction

[0036] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0037] Such as Figure 1 to Figure 3 As shown, a gas temperature measurement system 100 for a gas turbine according to an embodiment of the present invention (hereinafter referred to as the gas temperature measurement system 100 ) includes a sealed box 1, a thermal insulation 2, a temperature reference 3, a joint 4, an armored wire 5, A first thermocouple 6 and a second thermocouple 7 .

[0038] The sealed box 1 is suitable for being arranged in the measuring volume. Specifically, the sealed box 1 is provided with an inner cavity, and the inner cavity of the sealed box 1 is relatively sealed. The sealed box 1 is used to be installed in the measuring chamber of...

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Abstract

The invention discloses a gas turbine gas temperature measuring system, a gas turbine and a temperature measuring method. The gas turbine gas temperature measuring system comprises a sealing box, a heat insulation part, a temperature reference part, a connector, an armored wire, a first thermocouple and a second thermocouple, wherein the sealing box is suitable for being arranged in a measuring cavity, the heat insulation part is arranged in the sealing box, and the temperature reference part is arranged on the heat insulation part; the connector is arranged on the temperature reference part, heat conduction can be achieved between the connector and the temperature reference part, the inner end of the armored wire is connected with the connector, the outer end of the armored wire penetrates out of the sealing box, the armored wire and the box wall of the sealing box are sealed, and a wire of the first thermocouple penetrates through the box wall of the sealing box in a sealed mode to be connected with the connector. The second thermocouple is installed on the temperature reference part and used for measuring the temperature of the temperature reference part. A wire of the second thermocouple penetrates out of the sealing box and is sealed with the box wall of the sealing box. The fuel gas temperature measurement system can avoid the influence of high measurement environment temperature, and is high in temperature measurement precision and low in cost.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a gas temperature measurement system of a gas turbine and a gas turbine with the measurement system. Background technique [0002] In the related art, in order to ensure the measurement accuracy, the high-temperature gas of the gas turbine is generally measured by a high-temperature resistant thermocouple. Since the first thermocouple contains platinum, rhodium and other precious metals, the cost of the first thermocouple is relatively high. In order to reduce the use length of the first thermocouple to reduce the cost, there is also a method of connecting the first thermocouple to the compensation wire (cheap metal wire) in the related art, but the compensation wire can only be used within a certain ambient temperature. When the temperature is high, the error of the compensation wire is large, and the accuracy of temperature measurement is low. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/02
CPCG01K7/02
Inventor 郭庆波任立磊刘纯杰
Owner CHINA UNITED GAS TURBINE TECH CO LTD
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