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Shanghai Automation Instrumentation Co., Ltd.
Address:No.191 Guangzhong Road (West) Shanghai
Tel:86-21-59189606
Fax:86-21-60917975
Website:www.sc-saic.com/english
E-mail: tom.saic@gmail.com

How is the roof thermocouple installed?
Release time:2017-10-03   Clicks:647
The roof thermocouple is suitable for the boiler roof and other high-pressure and high-pressure measurement sites.
1, in order to make the top thermocouple measuring end and the measured medium between the full heat exchange, should be a reasonable choice of measuring point position, try to avoid the valve, elbow and pipe and equipment near the dead ends of the installation of thermocouple or heat resistance.
2, with a protective sleeve of the roof thermocouple with heat transfer and heat loss, in order to reduce the measurement error, there should be sufficient insertion depth.
3. For thermocouples that measure the temperature of the center of the pipe, it is generally necessary to insert the measuring end into the center of the pipe (vertical or tilted). If the pipe diameter of the fluid to be measured is 200 mm, the thermocouple or thermal resistance insertion depth should be selected 100 mm. In the case of
4, for high temperature and high pressure and high temperature fluid temperature measurement (such as the main steam temperature), in order to reduce the protective sleeve on the resistance of the fluid and to prevent the protective cover in the fluid under the action of the fracture can be taken to protect the tube shallow plug or Thermocouple. The plug-in thermocouple protection sleeve, which is inserted into the main steam pipe, should not be less than 75mm; the standard insert depth of the thermocouple is 100mm. In the case of
5, if you need to measure the temperature of the flue gas flue, although the flue diameter of 4m, the top of the thermocouple can be inserted into the depth of 1m. In the case of
6, when the measurement of the original insert depth of more than 1m, should be installed as far as possible, or the installation of support and protective casing.
 
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