Thermocouple sleeve and thermocouple
A technology of thermocouple casing and casing, which is applied in the direction of thermometers using electric/magnetic elements that are directly sensitive to heat, measuring heat, and using electrical devices. High-frequency vibration of the tube, fatigue fracture of the casing and other problems, to reduce the risk of cracks, prolong the service life, and the effect of long service life
Pending Publication Date: 2022-03-04
HUANENG HUNAN YUEYANG POWER GENERATION CO LTD +1
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Problems solved by technology
The straight-through casing is easy to install and has a simple process. It is often used in low temperature and low flow rate conditions. The disadvantage is that there is a certain gap between this type of casing and the pipeline after installation. High-frequency vibration causes fatigue fracture at the casing root
The conical bushing can compensate the gap between the pipe and the bushing and eliminate the influence of bushing vibration, but it has extremely high requirements for the pipe hole measurement and the size of the pipe seat, the processing is difficult, and it is not universal
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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention provides a thermocouple sleeve and a thermocouple, and relates to the technical field of thermocouples. The thermocouple sleeve comprises a measuring part sleeve, the measuring part sleeve comprises a straight pipe section and a taper pipe section connected to the lower end of the straight pipe section, and the taper pipe section is used for penetrating through a measuring hole formed in the pipe wall of a to-be-measured pipeline and extending into the to-be-measured pipeline so as to measure the temperature of a medium in the to-be-measured pipeline; a first boss is arranged at the joint of the straight pipe section and the taper pipe section, the first boss is parallel to the plane where the measuring hole is located in the radial direction, and the first boss is in interference fit with the measuring hole. The first boss is arranged and is in interference fit with the measuring hole, so that a gap between the sleeve and the measuring hole can be made up, sleeve vibration caused by high-speed airflow is effectively eliminated, the risk of sleeve crack caused by vibration is further reduced, and the service life is prolonged. The thermocouple with the thermocouple sleeve is long in service life and wide in applicability.
Description
technical field [0001] The invention relates to the technical field of thermocouples, in particular to a thermocouple casing and a thermocouple. Background technique [0002] Thermocouple is a common temperature measuring device in modern industry. The strength of thermocouple device is not high, and the temperature of the medium is usually measured through a protective sleeve. Therefore, the performance of the protective sleeve will directly affect the life of the thermocouple and work stability. As a device in direct contact with the medium, the casing is affected by the temperature, pressure, and erosion of the medium, and its material and shape design will directly affect the life of the casing. Especially in the contemporary industrial high-temperature and high-pressure environment, the requirements for bushings are gradually increasing, and the phenomenon of leakage of bushings in practical applications is gradually increasing. Leakage will affect the life of thermocou...
Claims
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IPC IPC(8): G01K7/02G01K1/08
CPCG01K7/02G01K1/08
Inventor 魏尚政李宏国丁磊李海斌雷中辉伍天海付亮曾哲西陈明辉胡昌龙
Owner HUANENG HUNAN YUEYANG POWER GENERATION CO LTD