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Small inert IE grade platinum resistance thermometer

A platinum resistance and thermometer technology, applied in the field of small inert IE grade platinum resistance thermometers, can solve the problems of insufficient strength, long thermal response time, etc., and achieve the effect of small thermal response time

Active Publication Date: 2007-02-14
NINGBO AUQI AUTO INSTR EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the existing platinum resistance thermometers are applied to this field, they have the disadvantages of insufficient strength and too long thermal response time, which cannot meet the actual needs of nuclear power plants at all.

Method used

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  • Small inert IE grade platinum resistance thermometer
  • Small inert IE grade platinum resistance thermometer

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] Such as figure 1 As shown, a small inert IE grade platinum resistance thermometer, which includes a stainless steel junction box 1, a protective tube 2, a fixing bolt 3, an armored platinum resistance body 4, a measuring terminal 5, a platinum resistance thermometer 6, a fixing bolt 3 and an outer protective sleeve 2 Welding, the metal 7 with good thermal conductivity is filled between the platinum resistance 6 in the measuring end 5 and the outer casing 8 of the measuring end.

[0015] The above-mentioned metal 7 having good thermal conductivity is silver-copper alloy or the like.

[0016] The above-mentioned armored platinum resistance body 4 is a double-core three-wire, such as figure 2 As shown, the diameter is Φ4.5mm~Φ5mm, and the length is determined according to the installation occasion.

[0017] The above junction box 1 is ...

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Abstract

A Pt resistance thermometer of small inertia IE grade consists of stainless steel junction box, protection tube, blot, amoured Pt resistive element and measuring end. It is featured as packing metal with perfect heat conduction ability between measuring end shell and Pt resistance in measuring end.

Description

technical field [0001] The invention relates to a platinum resistance thermometer, in particular to a small inert IE grade platinum resistance thermometer used in nuclear power plants. Background technique [0002] Platinum resistance thermometer is a better temperature measurement and control tool, which is widely used in modern equipment such as petroleum, chemical industry, chemical fiber, electric power, machinery, atomic energy, aerospace, etc., and can achieve a temperature range of -200°C-+600°C Internal temperature detection or automatic temperature adjustment. [0003] When platinum resistance thermometers are used in nuclear power plants and other fields, they provide corresponding temperature signals such as coolant loop cold and hot section temperatures, average temperatures, and temperature differences in nuclear reactor power control systems, nuclear reactor protection systems, and thermal control systems. The nuclear safety level 1 equipment used by the islan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/18
Inventor 孙炯孙磊孙文忠张亚娟邵华
Owner NINGBO AUQI AUTO INSTR EQUIP
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