CN219180253U

CN219180253U - Wrap-around high-temperature-resistant thermocouple extension line

Info

Publication number: CN219180253U
Application number: CN202222454502.4U
Authority: CN
Inventors: 王建斌; 夏自然
Original assignee: Shanghai Durant Electronics Co ltd
Current assignee: Shanghai Durant Electronics Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-06-13
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a wrapping type high-temperature-resistant thermocouple extension line which comprises a plurality of nickel-silicon wires and a plurality of nickel-chromium wires, wherein two wires are respectively wound outside the nickel-silicon wires and the nickel-chromium wires through an insulating PTFE wrapping belt I, and a PTFE wrapping belt II, a woven shielding sleeve and a PTFE sheath are sequentially wound outside the two wires. The utility model is formed by wrapping PTFE tapes on nickel-chromium and nickel-silicon conductors, sintering, twisting, braiding and wrapping sintered PTFE sheaths. The processed product has the characteristics of softness, corrosion resistance and high temperature resistance grade.

Description

Wrap-around high-temperature-resistant thermocouple extension line

Technical Field

The utility model relates to the technical field of wrap-around high-temperature-resistant thermocouple extension lines, in particular to a wrap-around high-temperature-resistant thermocouple extension line.

Background

At present, no wrapped thermocouple extension wire has a temperature resistance of 260 ℃, and the existing thermocouple extension wire insulation materials comprise PTFE, quartz fiber, XLeTFE and the like, but most of the thermocouple extension wire insulation materials are extruded on the surface of a conductor, and are mainly extrusion type thermocouple wires or thermocouple extension wires with a temperature resistance of only 100-150 ℃.

Disclosure of Invention

The utility model aims to provide a soft, high-temperature-resistant and corrosion-resistant wrap-around type high-temperature-resistant thermocouple extension line.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a high temperature resistant thermocouple extension line of package formula of wrapping, includes a plurality of nickel silicon wires and a plurality of nickel chromium wire, nickel silicon wire and nickel chromium wire are outer to be around band one through insulating PTFE respectively and are established into two strands of wires, two strands of wires are outer to be around band two, braided shield cover and the PTFE sheath of being equipped with in proper order around PTFE.

Preferably, the braided shielding sleeve is made of nickel-plated copper wire braided materials.

Preferably, the two strands of wires are sequentially wound with a PTFE winding belt II, a woven shielding sleeve and a PTFE sheath after being mutually wound.

Preferably, the thickness of the insulating PTFE wrapping tape I is 0.33mm.

The utility model is formed by wrapping PTFE tapes on nickel-chromium and nickel-silicon conductors, sintering, twisting, braiding and wrapping sintered PTFE sheaths. The processed product has the characteristics of softness, corrosion resistance and high temperature resistance grade.

Drawings

Fig. 1 is a schematic structural diagram of a wrap-around high temperature thermocouple extension cord according to the present utility model.

Reference numerals in the drawings:

1. a nickel silicon wire; 2. a nickel-chromium wire; 3. PTFE wrapping tape I; 4. PTFE wrapping tape I; 5. braided shielding sleeve, 6, PTFE sheath.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1, the wrapping type high-temperature-resistant thermocouple extension line provided by the utility model comprises a plurality of nickel silicon wires 1 and a plurality of nickel-chromium wires 2, wherein two wires are respectively wound outside the nickel silicon wires 1 and the nickel-chromium wires 2 through an insulating PTFE wrapping belt I3, and a PTFE wrapping belt II 4, a woven shielding sleeve 5 and a PTFE sheath 6 are sequentially wound outside the two wires.

Further, the braided shield 5 is made of nickel-plated copper wire braided material.

Further, after being mutually wound and twisted, the two wires are sequentially wound with a PTFE winding belt II 4, a woven shielding sleeve 5 and a PTFE sheath 6.

Further, the thickness of the insulating PTFE wrapping tape I3 provided by the utility model is 0.33mm.

The utility model also provides a preparation method of the wrap-around high-temperature-resistant thermocouple extension line, which comprises the following steps:

s1: preparing a plurality of nickel-silicon wires 1 and a plurality of nickel-chromium wires 2, wrapping the nickel-silicon wires 1 and the nickel-chromium wires 2 by an insulating PTFE wrapping tape 3, and sintering to form two strands of compact insulating layer wires;

s2: twisting the two wires, and then wrapping again through a PTFE wrapping belt II 4;

s3: a braided shielding sleeve 5 is braided outside the PTFE wrapping belt II 4 to form an effective shielding;

s4: a PTFE sheath 6 is wrapped around the braided shield 5.

The structural dimensions of the product are as follows:

list one

The performance of the wrap-around type high temperature resistant thermocouple extension line processed by the utility model is shown in the following table II:

watch II

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In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The winding type high-temperature-resistant thermocouple extension line is characterized by comprising a plurality of nickel-silicon wires (1) and a plurality of nickel-chromium wires (2), wherein two wires are respectively wound outside the nickel-silicon wires (1) and the nickel-chromium wires (2) through an insulating PTFE winding belt I (3), and PTFE winding belt II (4), a woven shielding sleeve (5) and a PTFE sheath (6) are sequentially wound outside the two wires; the two wires are sequentially wound with a PTFE winding belt II (4), a braided shielding sleeve (5) and a PTFE sheath (6) after being mutually wound.

2. The wrap-around high temperature thermocouple extension cord according to claim 1, characterized in that the braided shield (5) is made of nickel plated copper wire braided material.

3. The wrap-around high temperature thermocouple extension cord according to claim 1, wherein the thickness of the insulating PTFE wrap-around strap one (3) is 0.33mm.