CN212110389U

CN212110389U - Quick thermocouple that security is good

Info

Publication number: CN212110389U
Application number: CN202021076035.0U
Authority: CN
Inventors: 徐翠华
Original assignee: Nanjing Hengrui Analysis Apparatus Co ltd
Current assignee: Nanjing Hengrui Analysis Apparatus Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-12-08
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a quick thermocouple that security is good, including temperature measurement idol head and the big paper tube of setting in the temperature measurement idol head outside, the temperature measurement idol head outside is equipped with one and prevents the sediment cap, the outside of temperature measurement idol head and big paper tube is equipped with fiber paper layer. The utility model has the advantages that: the outer side of the large paper tube is provided with the fiber paper layer, and the fiber paper has the properties of low thermal capacity, low thermal conductivity, excellent electrical insulation property, high strength, tearing resistance, high flexibility and the like, so that the rapid thermocouple is not easy to generate sparks or splash of molten steel after being put into the molten steel, and the safety is higher.

Description

Quick thermocouple that security is good

Technical Field

The utility model relates to a thermocouple technical field, in particular to quick thermocouple that the security is good.

Background

The thermocouple (thermocouple) is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (secondary instrument). The appearance of various thermocouples is very different according to needs, but the basic structures of the thermocouples are almost the same, and the thermocouples are generally composed of main parts such as a thermode, an insulating sleeve protection tube, a junction box and the like, and are generally matched with a display instrument, a recording instrument and an electronic regulator for use.

The fast thermocouple is also called fast temperature measuring thermocouple, and in the field of thermocouple, it is usually a disposable consumption type thermocouple specially for measuring molten steel and high-temperature molten metal temperature. As shown in figure 1, the structure of the rapid thermocouple is mainly composed of a thermocouple head 1 and a large paper tube 2. The temperature measuring thermocouple head has mainly positive and negative thermocouple wires welded onto the compensating wire, which is embedded onto the support, and the support has small paper tube for supporting and protecting the thermocouple wires. The outermost part is provided with a slag-proof cap 3, all components are collectively arranged in the mud head and are bonded into a whole by refractory filler, and the mud head is not detachable and is disposable.

A thermocouple in the prior art, such as a KW-602 rapid thermocouple produced by double-China instruments Limited in Thai City, has the structure, and when the thermocouple is used, due to impurities such as grease, water and the like attached to the surface of the thermocouple, the thermocouple can splash sparks after being thrown into molten steel, even can cause a small amount of molten steel to splash, bring certain potential safety hazards to measuring personnel, and also bring potential safety hazards to the whole production environment. The chinese utility model patent publication No. CN207570688U discloses a rapid thermocouple also having the above structure, which also has similar problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick thermocouple that security is good, its advantage is difficult for producing the spark after throwing into the molten steel and also is difficult for making the molten steel splash, and the security is better.

The above object of the utility model is realized through following technical scheme, a quick thermocouple that the security is good, including temperature thermocouple head and the big paper tube of setting in the temperature thermocouple head outside, the temperature thermocouple head outside is equipped with one and prevents the sediment cap, the outside of temperature thermocouple head and big paper tube is equipped with the fiber paper layer.

The utility model discloses further set up to, 3mm is no less than to fiber paper layer's thickness.

Through the technical scheme, the length of the fiber paper layer is not less than 10 cm.

To sum up, the beneficial effects of the utility model are that: the outer side of the large paper tube is provided with the fiber paper layer, and the fiber paper has the properties of low thermal capacity, low thermal conductivity, excellent electrical insulation property, high strength, tearing resistance, high flexibility and the like, so that the rapid thermocouple is not easy to generate sparks or splash of molten steel after being put into the molten steel, and the safety is higher.

Drawings

FIG. 1 is a block diagram of a prior art rapid thermocouple of the background art;

FIG. 2 is a schematic view of the overall structure of the present embodiment;

fig. 3 is a sectional view of the present embodiment.

In the figure, 1, a thermocouple head; 2. a large paper tube; 3. a slag-proof cap; 4. and (3) a fiber paper layer.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Example (b): referring to fig. 1-2, a rapid thermocouple with good safety comprises a thermocouple head 1 and a large paper tube 2 arranged outside the thermocouple head 1, wherein a slag-proof cap 3 is arranged outside the thermocouple head 1. In this embodiment, the outer sides of the thermocouple head 1 and the large paper tube 2 are provided with a fiber paper layer 4. The thickness of the fiber paper layer 4 is not less than 3mm, the lower limit of the thickness of the fiber paper layer 4 in this embodiment is 3mm, the length of the fiber paper layer 4 is not less than 10cm, and the lower limit of the length of the fiber paper layer 4 in this embodiment is 10 cm. The fiber paper layer 4 can be formed by winding and bonding a single layer of fiber paper.

The outer side of the large paper tube 2 is provided with the fiber paper layer 4, and the fiber paper has the properties of low thermal capacity, low thermal conductivity, excellent electrical insulation property, high strength, tearing resistance, high flexibility and the like, so that the rapid thermocouple is not easy to generate sparks or splash of molten steel after being put into the molten steel, and the safety is higher.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. The utility model provides a quick thermocouple that security is good, includes temperature thermocouple head (1) and sets up big paper tube (2) in temperature thermocouple head (1) outside, and the temperature thermocouple head (1) outside is equipped with one and prevents sediment cap (3), its characterized in that, the outside of temperature thermocouple head (1) and big paper tube (2) is equipped with fiber paper layer (4).

2. A fast thermocouple with good safety according to claim 1, characterized in that the thickness of the fiber paper layer (4) is not less than 3 mm.

3. A fast thermocouple with good safety according to claim 1, characterized in that the length of the fiber paper layer (4) is not less than 10 cm.