Test device and use method of long-rod platinum resistance thermometer

A detection device and thermometer technology, applied in thermometers, measuring devices, electrical devices, etc., can solve problems such as complex structure and high cost

Inactive Publication Date: 2008-12-10
DAYA BAY NUCLEAR POWER OPERATIONS & MANAGEMENT
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  • Abstract
  • Description
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Problems solved by technology

The test device used in the UK can accurately detect long-stem platinum resistance thermometers, but this test device is not only complex in structure, but also expensive. The measurement cost of each long-stem resistance thermometer is as high as 300 pounds, which is far beyond that of domestic enterprises. affordability

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  • Test device and use method of long-rod platinum resistance thermometer
  • Test device and use method of long-rod platinum resistance thermometer

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Embodiment Construction

[0011] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0012] Such as figure 1 A preferred embodiment shown, it comprises a constant temperature water bath device and at least two standard thermometers 1, described constant temperature water bath device comprises again a water bath 2 that can be inserted into the long rod platinum resistance thermometer 3 to be measured, the two The standard thermometer 1 is also inserted into the two ends of the water bath 2 respectively. In the present embodiment, constant temperature water bath device can adopt various products that prior art provides, preferably adopts horizontal constant...

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Abstract

The invention belongs to the technical field of product testing and relates to a testing device for a long rod platinum resistance thermometer with a length over 700mm in particular. The testing device include a constant temperature water bath device and at least two standard thermometers; the constant temperature water bath device includes a water bath chamber which can be inserted into the long rod platinum resistance thermometer to be tested; the two standard thermometers are respectively inserted into the two ends of the water bath chamber as well. The testing device not only has a simple structure and is conveniently used, but also greatly reduces the testing cost. The invention also relates to a method for testing the long rod platinum resistance thermometer with the testing device; the method includes the steps as follows: firstly inserting the long rod platinum resistance thermometer into any end of the water bath chamber; then setting the temperature value of the constant temperature water bath device and waiting for a temperature field to be stable; then reading the values of each thermometer in turn and working out a standard temperature value by utilizing the values of the standard thermometers; then comparing the temperature value of the long rod platinum resistance thermometer to be tested with the standard temperature value and judging the measuring characteristic of the standard temperature value; resetting at least two temperature values to the constant temperature water bath device and repeating the steps.

Description

technical field [0001] The invention belongs to the technical field of product testing, and in particular relates to a testing device for a long-stem platinum resistance thermometer with a length exceeding 700MM and a method for using the same. Background technique [0002] Condenser long-stem platinum resistance thermometer is a commonly used measuring instrument in nuclear power plants. Specifically, it is mainly used to measure the water temperature of the seawater outlet of the condenser. The condenser long rod platinum resistance thermometer includes a protective sleeve and a temperature sensing element. The length of the protective sleeve is (2100±150)mm, the outer diameter is 6mm, and the temperature sensing element is a platinum resistance. There are 3 tubes in each sleeve. The three temperature sensing elements are evenly distributed in the whole casing and are led out by the three-wire system. For the temperature range of 0 to 60°C, the resistance characteristic o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/18
Inventor 聂沈斌薛敏秀
Owner DAYA BAY NUCLEAR POWER OPERATIONS & MANAGEMENT
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