CN211504433U

CN211504433U - Flexible corrosion-resistant thermocouple sensor

Info

Publication number: CN211504433U
Application number: CN202020063681.7U
Authority: CN
Inventors: 赖恒俊; 朱云川
Original assignee: Kunshan Advanced Microwave Technologies Co ltd
Current assignee: Kunshan Advanced Microwave Technologies Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-09-15
Anticipated expiration: 2030-01-13

Abstract

The utility model belongs to the technical field of the thermocouple, a flexible corrosion-resistant thermocouple sensor is related to, including anodal sinle silk and negative pole sinle silk, anodal sinle silk with negative pole sinle silk switches on only in top temperature measurement solder joint department, the surface coating of anodal sinle silk has first internal insulation layer, the surface coating of negative pole sinle silk has the second internal insulation layer, and two internal insulation layers are wrapped up in the oversheath layer that Teflon plastics were made, the outside cover of temperature measurement solder joint has the plastic envelope head that Teflon plastics were made, the plastic envelope head with the sealed butt joint of oversheath layer. The flexible corrosion-resistant thermocouple sensor can avoid corrosion of a product electrode wire core and a temperature measuring point, is flexible in structure, has the advantages of being good in acid and alkali resistance, stable in temperature measuring precision, long in service life and the like, and can replace part of armored thermocouple sensors to serve as temperature measuring components in a use environment with the temperature being less than 300 ℃.

Description

Flexible corrosion-resistant thermocouple sensor

Technical Field

The utility model relates to a line thermocouple technical field, in particular to flexible corrosion-resistant thermocouple sensor.

Background

The method aims to solve the problems that in an industrial environment, strong acid and strong alkali are in a strong corrosive environment, and the ambient temperature of corrosive liquid and equipment parts is measured in a corresponding high-temperature environment. The main solutions in the market at present are to use an infrared thermometer and a mercury thermometer, or to use a thermocouple or a thermal resistor matched with a quartz tube to measure a test object. As conventional corrosion-resistant thermocouples and thermal resistance sensors in the market have the defects of large and heavy product volume, no bending, easy breakage of a protective shell and great inconvenience in use; the infrared sensor can only measure the surface temperature, and cannot be clear in the furnace in the manufacturing process.

Therefore, it is necessary to provide a thermocouple sensor of a new structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a flexible corrosion-resistant thermocouple sensor can avoid product electrode sinle silk and temperature measurement point to be corroded, and the structure is softer, has advantages such as acid and alkali resistance is good, the temperature measurement precision is stable, long service life, is less than 300 ℃ service environment at the temperature under, fungible part armor thermocouple sensor is as the temperature measurement components and parts.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a flexible corrosion-resistant thermocouple sensor, includes positive sinle silk and negative pole sinle silk, positive sinle silk with the negative pole sinle silk switches on only in top temperature measurement solder joint department, the surface coating of positive sinle silk has first internal insulation, the surface coating of negative pole sinle silk has the second internal insulation, and two internal insulation are wrapped up in the oversheath layer that teflon plastics were made, the outside cover of temperature measurement solder joint has the plastic envelope head that teflon plastics were made, the plastic envelope head with the sealed butt joint of oversheath layer.

Specifically, the first inner insulating layer and the second inner insulating layer are both made of teflon plastics.

Specifically, the first inner insulating layer and the second inner insulating layer are different in color.

Specifically, the cross section of the plastic end socket is circular.

Specifically, the cross section of the plastic end socket is oval.

Specifically, the cross section of the plastic end socket is triangular.

Specifically, the cross section of the plastic end socket is square.

Adopt above-mentioned technical scheme beneficial effect to be:

the flexible corrosion-resistant thermocouple sensor can avoid corrosion of a product electrode wire core and a temperature measuring point, is flexible in structure, has the advantages of being good in acid and alkali resistance, stable in temperature measuring precision, long in service life and the like, and can replace part of armored thermocouple sensors to serve as temperature measuring components in a use environment with the temperature being less than 300 ℃.

Drawings

FIG. 1 is a simplified schematic diagram of a flexible corrosion-resistant thermocouple sensor;

FIG. 2 is a sectional view showing the position of the plastic sealing head in example 1;

FIG. 3 is a sectional view showing the position of the plastic sealing head in example 2;

FIG. 4 is a cross-sectional view showing the position of the plastic sealing head in example 3;

FIG. 5 is a cross-sectional view showing the position of the plastic sealing head in example 4.

The figures in the drawings represent:

1 a-positive wire core, 1 b-negative wire core;

2 a-a first inner insulating layer, 2 b-a second inner insulating layer;

3-an outer sheath layer;

4-plastic end enclosure;

5-temperature measuring welding spots.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example 1:

as shown in fig. 1 and 2, the utility model relates to a flexible corrosion-resistant thermocouple sensor, including positive sinle silk 1a and negative pole sinle silk 1b, positive sinle silk 1a and negative pole sinle silk 1b only switch on in top temperature measurement solder joint 5 department, positive sinle silk 1 a's surface coating has first internal insulation layer 2a, negative pole sinle silk 1 b's surface coating has second internal insulation layer 2b, two

internal insulation layers

2a, 2b are wrapped up in the oversheath layer 3 that Teflon plastics made, the outside cover of temperature measurement solder joint 5 has plastic envelope head 4 that Teflon plastics made, plastic envelope head 4 and the sealed butt joint of oversheath layer 3. Teflon plastics have many advantages per se, such as extremely high chemical resistance of the materials, such as boiling in concentrated sulfuric acid, nitric acid, hydrochloric acid, even in aqua regia, no change in weight and performance, weather resistance; the material is not hygroscopic and inflammable, is stable to oxygen and ultraviolet rays, and can be used in an environment of 200 ℃ below zero to 260 ℃ for a long time and in an environment of 290 ℃ to 300 ℃ for a short time. Therefore, the thermocouple sensor adopting the structure of the product disclosed by the patent also has the advantages, and can measure the temperature in severe environment. The outer side of the thermocouple sensor is subjected to corrosion-resistant protection through Teflon plastic, and the inner side of the thermocouple sensor is provided with inner

insulating layers

2a and 2b for respectively protecting the positive wire core 1a and the negative wire core 1b, so that the sealing property and the heat resistance are improved. The thermocouple cable is soft as a whole, has super-long length and low cost, and can flexibly adapt to use requirements. The temperature measuring welding point 5 is separated by only one plastic seal head 4, so the temperature corresponding speed is higher. The flexible corrosion-resistant thermocouple sensor can avoid corrosion of a product electrode wire core and a temperature measuring point, is flexible in structure, has the advantages of being good in acid and alkali resistance, stable in temperature measuring precision, long in service life and the like, and can replace part of armored thermocouple sensors to serve as temperature measuring components in a use environment with the temperature being less than 300 ℃.

The first and second inner

insulating layers

2a and 2b are made of teflon plastic. Therefore, the first inner insulating layer 2a and the second inner insulating layer 2b can also ensure relatively excellent corrosion resistance, and can better protect the wire core.

The first and second inner

insulating layers

2a and 2b are different in color. Because the positive and negative wire cores in the thermocouple are made of different materials, the types of the wire cores can be visually identified through the color of the inner insulating layer.

The cross section of the plastic seal head 4 is circular. The plastic end socket 4 with the structure has the advantages that the consumption of raw materials is small, the materials are tightly attached to the outer sides of the positive wire core 1 and the negative wire core 2, and therefore the flexibility is relatively good.

Example 2:

as shown in fig. 3, the difference from embodiment 1 is that: the cross section of the plastic seal head 4 is elliptic. The plastic end socket 4 with the structure is easy to bend directionally.

Example 3:

as shown in fig. 4, the difference from embodiment 1 is that: the cross section of the plastic seal head 4 is triangular. The plastic seal head 4 with the structure is stable in structure and not easy to deform.

Example 4:

as shown in fig. 5, the difference from embodiment 1 is that: the cross section of the plastic seal head 4 is square. The plastic seal head 4 with the structure is stable in structure and not easy to deform.

What has been described above are only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims

1. The utility model provides a flexible corrosion-resistant thermocouple sensor, includes positive sinle silk and negative pole sinle silk, positive sinle silk with the negative pole sinle silk switches on its characterized in that only in top temperature measurement solder joint: the surface of positive pole sinle silk has wrapped up first internal insulation layer, the surface of negative pole sinle silk has wrapped up the second internal insulation layer, and two internal insulation layers are wrapped up in the oversheath layer that Teflon plastics was made, the outside cover of temperature measurement solder joint has the plastic envelope head that Teflon plastics was made, the plastic envelope head with oversheath layer sealing butt joint.

2. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the first inner insulating layer and the second inner insulating layer are both made of Teflon plastic.

3. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the first and second inner insulating layers are different in color.

4. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the cross section of the plastic end socket is circular.

5. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the cross section of the plastic seal head is oval.

6. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the cross section of the plastic end socket is triangular.

7. The flexible corrosion resistant thermocouple sensor according to claim 1, wherein: the cross section of the plastic end socket is square.