Pt100 explosion-proof heat resistance is how to install1

Explosion-proof heat resistance of the installation points

1, in order to make the measurement end of the thermal resistance and had good heat exchange between the measured medium, should choose the observation points, try to avoid the valve, elbow and pipe and equipment installing heat resistance near the corner of the

2, with a protection casing thermal resistance of heat transfer and heat loss, in order to reduce the measurement error, insertion depth of thermocouple and thermal resistance should have enough

( 1) If is need to measure the temperature of flue gas, although the flue is 4 m in diameter, thermal resistance can be inserted into the depth of 1 m

( 2) When measuring the original insertion depth of more than 1 m, shall be installed vertically, as far as possible or add racks and protect casing

( 3) For thermal resistance temperature center fluid, usually should be measuring end is inserted into the pipe center ( Vertical or inclined installation) As the current body of pipe diameter is 200 mm, the thermal resistance should choose insert depth 100 mm;

( 4) For high temperature and high pressure and high velocity of temperature measurement, Such as main steam temperature) , in order to reduce cases of fluid resistance and prevent cases break under the action of a fluid, can adopt the mode of protection tube shallow inserted or use shallow shell hot resistance of thermal resistance to protect casing, the depth into the steam pipe shall be not less than 75 mm; On a hot resistance standard insert depth of 100 mm;

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