Sensor mount with cooling

A sensor and mounting seat technology, which is applied in the field of sensor mounting seats, can solve problems such as high temperature and excessive compensation wires, and achieve the effects of reducing surface temperature, reducing measurement accuracy out-of-tolerance, and reducing weight burden
CN104535208BActive Publication Date: 2017-07-14SUZHOU CHANGFENG AVIATION ELECTRONICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU CHANGFENG AVIATION ELECTRONICS
Publication Date
2017-07-14

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Abstract

The invention discloses a sensor mounting seat with cooling function, which is composed of a platform, a cylindrical boss and a sealing ring coaxially assembled together, wherein the cylindrical boss is hollow and the wall is provided with at least two vertical air passages , the sealing ring is connected to the bottom of the cylindrical boss and forms a horizontal annular groove that leads to all the ventilation grooves; The air holes and air passages are intersected and conducted one by one, combined with the horizontal annular groove to form the air flow passage space inside the sensor mounting seat. After applying and implementing the technical solution of the present invention, through self-cooling structure improvement and cooling treatment, the mounting seat can be made of ordinary nickel-based alloy to meet the mechanical strength requirements for use in a high-temperature gas environment of about 1600K, effectively reducing its surface temperature and weakening The measurement accuracy of the thermocouple compensation wire is out of tolerance due to temperature overrun, which reduces the weight burden and cost of the aero-engine.
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Description

technical field

[0001] The invention relates to a mounting seat for a high-temperature thermocouple sensor, in particular to a sensor mounting seat which can be used to install and fix a casing in an aero-engine. Background technique

[0002] As the design temperature of aero-engine continues to increase, higher requirements are placed on the high-temperature performance of sensors. For example, in a turbofan engine with a large thrust-to-weight ratio, the temperature of the gas behind the turbine is as high as 1600K, and the temperature of the mounting surface of the casing sensor is as high as 750K. The mounting seat of the thermocouple sensor used to measure the temperature should have the following characteristics: 1. In order to meet the installation and coordination relationship between the thermocouple and the casing, the part where the thermocouple mounting seat is inserted into the casing and contacts the gas should have Certain mechanical strength. 2. Due to the ...

Claims

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