Rapid thermocouple

Abstract

The utility model discloses a kind of quick thermocouple, including upper paper tube and support, the support bottom wall connects cylinder, support bottom wall connects inner positioning cylinder, support upper is inserted with positive pole compensation lead and negative pole compensation lead, the positive pole compensation lead bottom end is attached to inner positioning cylinder outer wall, the negative pole compensation lead bottom end is attached to inner positioning cylinder inner wall, quartz tube is installed in support top, the positive pole filament and negative pole filament are inserted in the quartz tube, the positive pole filament is connected with negative pole filament, the positive pole filament is connected with positive pole compensation lead, the negative pole filament is connected with negative pole compensation lead, support is installed in upper paper tube, upper paper tube is filled with high-temperature-resistant material, the quartz tube top is located above high-temperature-resistant material. The structure can make temperature measuring gun head connecting plug and product stable connection, improve temperature measuring success rate.

Description

Technical Field

[0001] This utility model relates to the field of thermocouple technology, specifically to a fast thermocouple. Background Technology

[0002] A fast thermocouple is a thermocouple specifically designed for extremely rapid temperature measurement in high-temperature, harsh environments. During use, a fast thermocouple requires tight contact with the thermocouple connector at the temperature probe tip. When measuring molten steel, the boiling of the steel and the dynamic vibrations of the thermocouple can cause loose contact between the connector and the thermocouple, resulting in measurement failure. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a fast thermocouple. This structure enables a stable connection between the temperature measuring gun head connector and the product, thereby improving the success rate of temperature measurement.

[0004] A fast thermocouple includes an upper paper tube and a support. The bottom wall of the support is connected to a cylinder and an inner positioning cylinder. A positive compensation wire and a negative compensation wire are embedded in the support. The bottom end of the positive compensation wire is attached to the outer wall of the inner positioning cylinder, and the bottom end of the negative compensation wire is attached to the inner wall of the inner positioning cylinder. A quartz tube is installed on the top of the support. A positive thermocouple wire and a negative thermocouple wire are embedded in the quartz tube. The positive thermocouple wire is connected to the negative thermocouple wire, the positive thermocouple wire is connected to the positive compensation wire, and the negative thermocouple wire is connected to the negative compensation wire. The support is installed inside the upper paper tube, which is filled with a high-temperature resistant material. The top of the quartz tube is located above the high-temperature resistant material.

[0005] Preferably, the top wall of the bracket is provided with a fixing frame, and the quartz tube is installed on the fixing frame.

[0006] Preferably, a metal protective cap 9 is installed on the top wall of the high-temperature resistant material 8.

[0007] Preferably, the top wall of the metal protective cap has a through hole.

[0008] Preferably, it further includes a lower paper tube and an outer paper tube, the bottom wall of the upper paper tube is in contact with the top wall of the lower paper tube, the outer wall of the cylinder is connected to the inner walls of both the lower and upper paper tubes, and the inner wall of the outer paper tube is connected to the outer walls of both the upper and lower paper tubes.

[0009] Preferably, the cylinder is bonded to the lower paper tube and the upper paper tube by adhesive.

[0010] Preferably, the outer paper tube is bonded to the upper and lower paper tubes with adhesive.

[0011] The beneficial effects of this utility model are as follows: In this technical solution, a positive and a negative dipole wire are embedded inside a quartz tube, and a positive and a negative compensating wire are embedded on a support. The positive and negative dipole wires are connected, as are the positive and negative compensating wires, forming a thermocouple. A cylinder and an inner positioning cylinder are connected to the bottom wall of the support. The bottom end of the positive compensating wire is attached to the outer wall of the inner positioning cylinder, and the bottom end of the negative compensating wire is attached to the inner wall of the inner positioning cylinder. In use, the temperature measuring gun head connector is inserted into the cylinder, and the inner wall of the cylinder presses against the outer wall of the connector. The inner positioning cylinder is inserted into the connector, and the connector is electrically connected to the positive and negative compensating wires. The cylinder and the inner positioning cylinder press against the connector from the inside and outside, ensuring the stability of the connection between the connector and the product, preventing it from being affected by the boiling and vibration of molten steel, and improving the success rate of temperature measurement. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 This is a front sectional view of the present invention.

[0014] In the attached diagram, 1-lower paper tube, 2-upper paper tube, 3-outer paper tube, 4-support, 5-positive compensation wire, 6-negative compensation wire, 7-quartz tube, 8-high temperature resistant material, 9-metal protective cap, 10-cylinder, 11-inner positioning cylinder, 12-fixed frame. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] Example 1

[0018] like Figure 1As shown, this embodiment provides a fast thermocouple, including an upper paper tube 2 and a support 4. The bottom wall of the support 4 is connected to a cylinder 10 and an inner positioning cylinder 11. A positive compensation wire 5 and a negative compensation wire 6 are embedded in the support 4. The bottom end of the positive compensation wire 5 is attached to the outer wall of the inner positioning cylinder 11, and the bottom end of the negative compensation wire 6 is attached to the inner wall of the inner positioning cylinder 11. A quartz tube 7 is installed on the top of the support 4. A positive thermocouple wire and a negative thermocouple wire are embedded in the quartz tube 7. The positive thermocouple wire is connected to the negative thermocouple wire, the positive thermocouple wire is connected to the positive compensation wire 5, and the negative thermocouple wire is connected to the negative compensation wire 6. The support 4 is installed inside the upper paper tube 2, which is filled with a high-temperature resistant material 8. The top of the quartz tube 7 is located above the high-temperature resistant material 8.

[0019] In this embodiment, the inner positioning cylinder 11 is triangular or circular.

[0020] In this embodiment, a positive and negative thermocouple wires are embedded inside the quartz tube 7, and a positive compensating wire 5 and a negative compensating wire 6 are embedded on the support 4. The positive and negative thermocouple wires are connected, the positive thermocouple wire is connected to the positive compensating wire 5, and the negative thermocouple wire is connected to the negative compensating wire 6 to form a thermocouple. A cylinder 10 and an inner positioning cylinder 11 are connected to the bottom wall of the support 4. The bottom end of the positive compensating wire 5 is attached to the outer wall of the inner positioning cylinder 11, and the bottom end of the negative compensating wire 6 is attached to the inner wall of the inner positioning cylinder 11. In use, the temperature measuring gun head connector is inserted into the cylinder 10, and the inner wall of the cylinder 10 presses against the outer wall of the connector. The inner positioning cylinder 11 is inserted into the connector, and the connector is electrically connected to the positive and negative compensating wires 5 and 6. The cylinder 10 and the inner positioning cylinder 11 press against the connector inside and out, ensuring the stability of the connection between the connector and the product, preventing it from being affected by the boiling and vibration of molten steel, and improving the success rate of temperature measurement.

[0021] In existing technologies, thermocouples require ceramic clay heads. Now, paper tubes are used instead, which not only saves costs and is easy and simple to manufacture, but also better protects internal components. Paper tubes conduct heat slowly, resulting in more accurate temperature measurement.

[0022] In this embodiment, a fixing frame 12 is provided on the top wall of the bracket 4, and the quartz tube 7 is installed on the fixing frame 12. The fixing frame 12 is provided in this embodiment to realize the installation and fixation of the quartz tube 7.

[0023] In this embodiment, a metal protective cap 9 is installed on the top wall of the high-temperature resistant material 8. The top wall of the metal protective cap 9 in this embodiment has a through hole.

[0024] In this embodiment, a metal protective cap 9 is provided to protect the internal components of the upper paper tube 2 under normal conditions. The metal protective cap 9 will melt during the molten steel measurement process. A through hole is opened on the top wall of the metal protective cap 9 so that when the metal protective cap 9 has not melted during the measurement process, the molten steel can quickly enter the metal protective cap 9 and come into contact with the measuring components.

[0025] Example 2

[0026] This embodiment further defines the limitations based on Embodiment 1.

[0027] This embodiment also includes a lower paper tube 1 and an outer paper tube 3. The bottom wall of the upper paper tube 2 is in contact with the top wall of the lower paper tube 1. The outer wall of the cylinder 10 is connected to the inner walls of both the lower paper tube 1 and the upper paper tube 2. The inner wall of the outer paper tube 3 is connected to the outer walls of both the upper paper tube 2 and the lower paper tube 1.

[0028] This embodiment also includes a lower paper tube 1 and an outer paper tube 3. The bottom wall of the upper paper tube 2 contacts the top wall of the lower paper tube 1. The cylinder 10 is connected to both the lower paper tube 1 and the upper paper tube 2 to improve the stability of the connection. The outer paper tube 3 is simultaneously fitted onto both the upper paper tube 2 and the lower paper tube 1 to achieve the overall installation of the device.

[0029] In this embodiment, the cylinder 10 is bonded to the lower paper tube 1 and the upper paper tube 2 with adhesive.

[0030] In this embodiment, the outer paper tube 3 is bonded to the upper paper tube 2 and the lower paper tube 1 with adhesive.

[0031] During installation, cut the lower paper tube 1, outer paper tube 3, and upper paper tube 2 to the appropriate dimensions. Apply glue to the upper part of the cylinder 10, insert the bracket 4 into the upper paper tube 2, pour in the high-temperature resistant material 8, and then fasten the metal protective cap 9 to fix the bracket 4 on the upper paper tube 2. Then apply glue to the lower part of the cylinder 10 and insert the cylinder 10 into the lower paper tube 1 to obtain the finished fast thermocouple. Then apply glue to the upper paper tube 2 and lower paper tube 1 and connect them to the outer paper tube 3 to prevent molten steel from entering through the connection between the upper paper tube 2 and lower paper tube 1.

[0032] Example 3

[0033] This embodiment further defines the limitations based on Embodiment 1.

[0034] In this embodiment, the upper paper tube 2 is set to be relatively long, equivalent to the length of the upper paper tube 2 and the lower paper tube 1 in embodiment 2. Therefore, the lower paper tube 1 and the outer paper tube 3 are not needed during actual installation and production. During production, the upper paper tube 2 is cut to the correct size, high-temperature resistant material 8 is poured onto the bracket 4, a metal protective cap 9 is attached, and then glue is applied to the cylinder 10. The cylinder 10 is then inserted into the upper paper tube 2, resulting in the finished rapid thermocouple. This installation method is simpler and has lower production costs.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A fast thermocouple, characterized in that, The device includes an upper paper tube (2) and a support (4). The bottom wall of the support (4) is connected to a cylinder (10) and an inner positioning cylinder (11). A positive compensation wire (5) and a negative compensation wire (6) are embedded in the support (4). The bottom end of the positive compensation wire (5) is attached to the outer wall of the inner positioning cylinder (11), and the bottom end of the negative compensation wire (6) is attached to the inner wall of the inner positioning cylinder (11). A quartz tube (7) is installed on the top of the support (4). A positive dipole wire and a negative dipole wire are embedded in the quartz tube (7). The positive dipole wire is connected to the negative dipole wire, the positive dipole wire is connected to the positive compensation wire (5), and the negative dipole wire is connected to the negative compensation wire (6). The support (4) is installed inside the upper paper tube (2). The upper paper tube (2) is filled with a high-temperature resistant material (8). The top of the quartz tube (7) is located above the high-temperature resistant material (8).

2. The fast thermocouple according to claim 1, characterized in that, The bracket (4) has a fixing frame (12) on its top wall, and the quartz tube (7) is installed on the fixing frame (12).

3. A fast thermocouple according to claim 1, characterized in that, The top wall of the high-temperature resistant material (8) is fitted with a metal protective cap (9).

4. A fast thermocouple according to claim 3, characterized in that, The metal protective cap (9) has a through hole on its top wall.

5. A fast thermocouple according to claim 1, characterized in that, It also includes a lower paper tube (1) and an outer paper tube (3). The bottom wall of the upper paper tube (2) is in contact with the top wall of the lower paper tube (1). The outer wall of the cylinder (10) is connected to the inner walls of both the lower paper tube (1) and the upper paper tube (2). The inner wall of the outer paper tube (3) is connected to the outer walls of both the upper paper tube (2) and the lower paper tube (1).

6. A fast thermocouple according to claim 5, characterized in that, The cylinder (10) is bonded to the lower paper tube (1) and the upper paper tube (2) with glue.

7. A fast thermocouple according to claim 5, characterized in that, The outer paper tube (3) is bonded to the upper paper tube (2) and the lower paper tube (1) with glue.

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