CN212807361U

CN212807361U - Armoured multipoint thermocouple

Info

Publication number: CN212807361U
Application number: CN202021518519.6U
Authority: CN
Inventors: 李小强
Original assignee: Zhongke Tianyi Chengdu Technology Co ltd
Current assignee: Zhongke Tianyi Chengdu Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-26
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses an armor formula multiple spot thermocouple, including protective case and many pairs of galvanic couple silk, protective case one end is for sealing, and other end opening part is provided with the terminal box, the coaxial bracing piece that is provided with in protective case, the bracing piece links to each other with the one end stationary phase that protective case sealed, use the bracing piece as centre of gyration on the bracing piece, it is many pairs of galvanic couple silk to be provided with around the bracing piece spiral, and is every right galvanic couple silk one end links to each other and forms hot junction, and the other end links to each other with the bracing piece, be provided with the telescopic link between terminal box and the protective case, can measure the temperature of a plurality of positions through a plurality of galvanic couple silks.

Description

Armoured multipoint thermocouple

Technical Field

The utility model relates to a thermocouple field especially relates to an armor formula multiple spot thermocouple.

Background

Can produce a large amount of heats in the power generation process, can influence the normal operating of electricity generation operating mode under the high temperature condition, consequently, need the power supply coolant to adjust the electricity generation reaction temperature, measure the temperature of power supply coolant export or entry through the temperature sensor subassembly, and give control system with the temperature signal transmission who records, detect through control system, thereby ensure the safe operation of electricity generation operating mode, current temperature sensor is single-point type armor thermocouple, need fix the hot junction in the assigned position when measuring and can measure, measure the reliability poor, the installation is fixed difficultly.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides an armor formula multiple spot thermocouple has convenient operation, and measurement reliability is high, and the multiple spot can be measured advantage.

The technical scheme of the utility model is that:

the utility model provides an armor formula multiple spot thermocouple, includes protective case and many pairs of galvanic couple silk, protective case one end is sealed, other end opening, the open end is provided with the terminal box, the coaxial bracing piece that is provided with in the protective case, the bracing piece links to each other with protective case confined one end stationary phase, use the bracing piece as centre of gyration on the bracing piece, be provided with many pairs of galvanic couple silk around the bracing piece spiral, it is every right galvanic couple silk one end links to each other and forms hot junction, and the other end links to each other with the bracing piece, be provided with the telescopic link between terminal box and the.

The working principle of the technical scheme is as follows:

set up the bracing piece in the protective sleeve, the spiral sets up many pairs of galvanic couple silk on the bracing piece, many hot junctions to the galvanic couple silk are located protective sleeve's length direction's different positions, can carry out temperature measurement to protective sleeve length direction's a plurality of positions simultaneously, when measuring the coolant liquid, only need lean on protective sleeve optional position in the import or the exit of coolant liquid, can ensure that there is the galvanic couple silk normal work of a position, can carry out temperature measurement at the multiple spot, measure the reliability height, measuring method is simple, use the telescopic link to adjust according to the degree of depth and the height of different temperature measurement positions, reduce the staff operation degree of difficulty.

In a further technical scheme, the hot junction of each pair of the couple wires is in contact with the inner wall of the protective sleeve, and the inner wall of the protective sleeve is provided with heat-conducting paint.

The hot junction contacts with the inner wall of the protective sleeve, and the inner wall of the protective sleeve is provided with the heat-conducting coating, so that the thermal response time of hot junction temperature induction can be prolonged, and the measurement precision and the measurement reliability are improved.

In a further technical scheme, the protective sleeve is filled with insulating powder.

Insulating powder is filled in the protective sleeve, so that the influence of current between the thermocouple wires can be prevented, and the response speed is improved.

In a further technical scheme, a plurality of pairs of thermocouple wires are integrated into a bundle along the supporting rod at the ends far away from the hot junction, and the thermocouple wires integrated into a bundle are connected with the junction box.

A plurality of couples of silk link to each other with the terminal box after along the bracing piece integration, can be through the external temperature that shows each position of instrument of terminal box, use the reliability height.

The utility model has the advantages that:

1. the supporting rod is arranged in the protective sleeve, the multiple pairs of thermocouple wires spirally surround the supporting rod, and hot junctions of the multiple pairs of thermocouple wires are located at different positions in the length direction of the protective sleeve, so that the temperature at multiple positions can be measured, and the measurement reliability is high;

2. the hot junction is in contact with the inner wall of the protective sleeve, and the heat-conducting coating is arranged on the inner wall of the protective sleeve, so that the thermal response time of hot junction temperature induction can be prolonged, and the measurement precision is improved;

3. insulating powder is filled in the protective sleeve, so that the influence of current between the thermocouple wires can be prevented, and the response speed is improved;

4. a plurality of couples of silk link to each other with the terminal box after along the bracing piece integration, can be through the external temperature that shows each position of instrument of terminal box, use the reliability height.

Drawings

Fig. 1 is a schematic view of an overall structure of an armored multipoint thermocouple according to an embodiment of the present invention;

fig. 2 is a top view of an armored multipoint thermocouple according to an embodiment of the present invention.

Description of reference numerals:

10. protecting the sleeve; 11. a support bar; 12. a thermally conductive coating; 13. an insulating powder; 20. a galvanic couple wire; 30. a junction box; 40. a telescopic rod.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

as shown in fig. 1 and 2, an armored multipoint thermocouple includes a protective sleeve 10 and a plurality of pairs of thermocouple wires 20, one end of the protective sleeve 10 is closed, the other end of the protective sleeve is open, a junction box 30 is arranged at the opening, a support rod 11 is coaxially arranged in the protective sleeve 10, the support rod 11 is fixedly connected with one end of the protective sleeve 10, the support rod 11 is provided with the support rod 11 as a rotation center, the plurality of pairs of thermocouple wires 20 are spirally arranged around the support rod 11, each pair of thermocouple wires 20 is connected with one end to form a hot junction, the other end of each pair of thermocouple wires 20 is connected with the support rod 11, and a telescopic rod 40 is.

The working principle of the technical scheme is as follows:

set up bracing piece 11 in protective sleeve 10, the spiral sets up many pairs of galvanic couple silk 20 on bracing piece 11, many hot junctions to galvanic couple silk 20 are located protective sleeve 10's length direction's different positions, can carry out temperature measurement to protective sleeve 10 length direction's a plurality of positions simultaneously, when carrying out temperature measurement, only need lean on protective sleeve 10 optional position in the import or the exit of coolant liquid, can ensure that there is the galvanic couple silk 20 normal work of a position, can carry out temperature measurement at the multiple spot, it is high to measure the reliability, measuring means is simple, use telescopic link 40 can adjust according to the temperature measurement degree of depth or the high position of difference, reduce staff's operation degree of difficulty.

In another embodiment, as shown in fig. 1 and fig. 2, the thermal junction of each pair of the electric couple wires 20 is in contact with the inner wall of the protective sleeve 10, and the inner wall of the protective sleeve 10 is provided with the heat conductive coating 12, so that the thermal response time of the thermal junction temperature induction can be improved, and the measurement accuracy can be improved.

In another embodiment, as shown in fig. 1 and 2, the protection sleeve 10 is filled with the insulating powder 13, so that the influence of the current between the galvanic couple wires can be prevented, and the response speed can be improved.

In another embodiment, a plurality of pairs of thermocouple wires 20 are integrated into a bundle along the supporting rod at the ends far away from the hot junction, the thermocouple wires 20 after being integrated into a bundle are connected with the junction box 30, and the junction box 30 can be externally connected with the temperature of each position of the display instrument, so that the use reliability is improved.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides an armor formula multiple spot thermocouple, its characterized in that, includes protective case and many pairs of galvanic couple silk, protective case one end is sealed, other end opening, the open end is provided with the terminal box, the coaxial bracing piece that is provided with in the protective case, the bracing piece links to each other with protective case confined one end stationary phase, use the bracing piece as centre of gyration on the bracing piece, it is provided with many pairs of galvanic couple silk around the bracing piece spiral, it is every right galvanic couple silk one end links to each other and forms hot junction, and the other end links to each other with the bracing piece, be provided with the telescopic link between terminal box.

2. The armored multipoint thermocouple of claim 1, wherein the hot junction of each pair of thermocouple wires is in contact with the inner wall of the protective sheath, the inner wall of the protective sheath being provided with a thermally conductive coating.

3. An armored multipoint thermocouple according to claim 1, wherein the protective sheath is filled with insulating powder.

4. The armored multipoint thermocouple according to claim 1, wherein a plurality of pairs of said thermocouple wires are bundled along the support rod at the ends thereof remote from the hot junction, and the bundled thermocouple wires are connected to the junction box.