MINIATURE PLATINUM RESISTANCE TEMPERATURE DETECTOR UNIT WITH INTEGRAL CONNECTOR FOR MONITORING OF THRUST BEARING METAL TEMPERATURE OF BOILER FEED PUMP USED IN THERMAL POWER STATIONS

摘要

A Resistance Temperature Detector device for monitoring of thrust bearing metal temperature of boiler feed pump comprising:- - a miniature platinum resistance temperature detector element (1). - a semi-flexible stainless steel armour (2) over the RTD wires connected to said element, - a metallic feed through tube (3) - an adjustable connector (4) which can be adjusted through out the length of the feed through tube (3) and a sealing bush (5) disposed inside the connector (4); - a crimp on pot (6) which connects the said feed through tube (3) to a stainless steel square link armour (7) for protection of RTD wires and - the open end lead wires (8) for connection to a data acquision system. Characterized in that the semiflexible stainless steel armour (2) enable insertion and withdrawal of the RTD elements into/from the thrust pad of bearing having without causing mechanical damage to the RTD element, and the metallic feed through tube (3) around RTD wires ensures leak-proof joint at the sealing brush (5).