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Novel molten salt temperature switch and preparation method thereof

A technology of temperature switch and molten salt, which is applied in the direction of thermal switch components, etc., can solve the problems of unusable and uneconomical use of temperature switches, and achieve the effects of long service life, small size and good stability

Active Publication Date: 2012-07-04
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing temperature switches are uneconomical or even impossible to use in higher temperature work areas

Method used

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  • Novel molten salt temperature switch and preparation method thereof
  • Novel molten salt temperature switch and preparation method thereof
  • Novel molten salt temperature switch and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment

[0027] The materials selected for making the new molten salt temperature switch in this embodiment are as follows:

[0028] The inner diameter of the stainless steel nut (1) is 11mm, the outer diameter is 14.5mm, and the length is 8.5mm, the length of the external thread is greater than 5mm, and the length of the internal thread is greater than 5mm; The inner diameter is 12mm, the outer diameter is 14.5mm, the length is 13mm, the length of the outer thread is greater than 5mm, and the length of the inner thread is greater than 5mm; the insulating tube (3) is a corundum insulating sleeve with an inner diameter of 7mm, an outer diameter of 12mm, and a length of 20mm , the length of the external thread is greater than 5mm, the molten salt (4) selects KSCN-NaCl, and its KSCN and NaCl are analytically pure; the conductive wire (5) selects a copper wire, and the preparation process is as follows:

[0029] Step 1: Dry the stainless steel nut, copper guide piece, and corundum sleeve f...

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Abstract

The invention relates to a novel molten salt temperature switch and a preparation method thereof, which belong to the technical field of temperature switches. The novel molten salt temperature switch comprises a stainless steel screw cap (1), conductive sheets (2), an insulation pipe (3), molten salt (4) and conductive wires (5), wherein the molten salt (4) is arranged in the insulation pipe (3),both ends of the insulation pipe (3) are respectively connected with the conductive sheets (2) through screw threads, the outer side of each conductive sheet (2) is respectively connected with the stainless steel screw cap (1) through screw threads, and the conductive wires (5) are fixed between the conductive sheets (2) and the stainless steel screw cap (1). The novel molten salt temperature switch of the invention is applicable to the environment temperature between 170 and 1000 DEG C, and has the characteristics of high corrosion resistance, low requirements on use environment and certain extruding and pressing capability, capability of circulated use, long service, small size and the like. The conductive media adopted by the invention are molten salt systems with high stability and notoxicity.

Description

technical field [0001] The invention belongs to the technical field of temperature switches, in particular to a novel molten salt temperature switch and a preparation method thereof. Background technique [0002] The current temperature switches are divided into solid expansion temperature switches in the temperature range of 0°C to 100°C; gas expansion temperature switches are mostly used in the temperature range of 100°C to 250°C; for temperatures above 250°C For the temperature range, only thermocouples or thermal resistance thermometers can be used, which are converted into analog electrical signals by measuring transmitters, and then converted into digital signals. In higher temperature working areas, existing temperature switches are uneconomical or even impossible to use. Contents of the invention [0003] In order to overcome the defect that the above-mentioned temperature switch is not suitable for higher temperatures, the present invention proposes a new type of...

Claims

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Application Information

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IPC IPC(8): H01H37/32
Inventor 厉英孟玲龙
Owner NORTHEASTERN UNIV
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