Thermocouple with cooling protection function

Abstract

The utility model discloses a thermocouple with a cooling protection function. The thermocouple comprises a main body structure. The main body structure comprises a thermocouple body and an insulating sleeve arranged outside the thermocouple body; comprising a protection mechanism used for protecting a thermocouple body. The protection device comprises a protection shell, a junction box is installed at the upper end of the protection shell, and a box cover is installed at the top of the junction box. Comprising a cooling mechanism for performing cooling protection on the thermocouple; the cooling mechanism comprises a clamping sleeve arranged on the outer wall of the protective shell, a cooling medium is arranged in the clamping sleeve, a liquid inlet allowing the cooling medium to enter is formed in the top of the clamping sleeve, and a liquid outlet allowing the cooling medium to flow out is formed in the bottom of the clamping sleeve. By arranging the cooling mechanism, the temperature measuring device has remarkable advantages and practicability, can protect the thermocouple from being directly influenced by a high-temperature environment, and can be applied to temperature measurement in various high-temperature environments.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouple equipment, in particular to a thermocouple with a cooling protection function. Background Art

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as hot electrodes, insulating sleeve protection tubes and junction boxes, and are usually used in conjunction with display instruments, recording instruments and electronic regulators.

[0003] After searching, the Chinese patent application number is: CN201910460001.7, which discloses a wireless thermocouple, including a receiving host, a protective cover, an electronic compartment, a circuit board and a thermocouple. The thermocouple is arranged inside the protective cover, and one end of the thermocouple extends to the inside of the electronic compartment and is connected to the circuit board. The circuit board is provided with a data acquisition module, a data front-end processing module, a data processing module, and a wireless communication module. The thermoelectric potential is collected from the thermocouple through the data acquisition module, and then amplified, filtered, and processed by the data front-end processing module. The analog signal is converted into a digital signal through the data processing module, and combined with the cold end temperature compensation signal and the temperature characteristics of the thermocouple, the thermoelectric potential is directly converted into temperature and transmitted to the wireless communication module. The wireless communication module transmits the data to the receiving host according to the pre-set data transmission requirements and communication protocol. At the same time, the receiving host receives and forwards the data to the cloud platform, thereby realizing grid-based temperature control.

[0004] In the above technical solution, the thermocouple lacks a cooling function. When the thermocouple works in a high-temperature environment, long-term exposure to high temperature may cause aging of the joint material, degradation of performance, and even damage to the thermocouple, affecting the measurement accuracy and service life. Therefore, we need to propose a thermocouple with a cooling protection function. Utility Model Content

[0005] The purpose of the utility model is to provide a thermocouple with a cooling protection function. The device has a simple structure and is easy to use. By setting a cooling mechanism, it has significant advantages and practicality. It can not only effectively reduce the temperature of the thermocouple and extend its service life, but also protect the thermocouple from the direct influence of the high temperature environment. The application can be applied to temperature measurement applications in various high temperature environments to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A thermocouple with cooling protection function, comprising a main structure;

[0008] The main structure includes a thermocouple body and an insulating sleeve arranged outside the thermocouple body, a detection end is arranged at the lower end of the thermocouple body, and a terminal is arranged at the upper end of the thermocouple body;

[0009] including a protection mechanism for protecting the thermocouple body;

[0010] The protection comprises a protection shell, a junction box is installed on the upper end of the protection shell, and a box cover is installed on the top of the junction box;

[0011] A cooling mechanism is included for cooling and protecting the thermocouple;

[0012] The cooling mechanism comprises a jacket arranged on the outer wall of the protective shell, a cooling medium is arranged inside the jacket, a liquid inlet for the cooling medium to enter is arranged at the top of the jacket, and a liquid outlet for the cooling medium to flow out is arranged at the bottom of the jacket.

[0013] Preferably, the terminal extends to the inner cavity of the junction box, and a wiring sleeve connected to the interior of the junction box is provided on one side outer wall of the junction box to allow the wire to enter the junction box and connect to the terminal.

[0014] Preferably, the cooling medium in the jacket is water.

[0015] Preferably, the cooling medium in the jacket is oil.

[0016] Preferably, it also includes a mounting mechanism for mounting the device, and the mounting mechanism includes a flange plate arranged on the protective shell.

[0017] Preferably, the flange is provided with fixing holes, and a plurality of fixing holes are arranged in a circle around the flange at equal intervals.

[0018] Preferably, a threaded section is provided on the outer wall of the protective shell, the flange is threadedly mounted on the threaded section, and blocks are provided at both upper and lower ends of the threaded section on the protective shell.

[0019] Preferably, a groove is formed at the bottom of the flange, and the groove corresponds to the stopper.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model arranges a protective shell outside the thermocouple body, arranges a junction box on the top of the protective shell, arranges a cooling mechanism including a jacket on the outer wall of the protective shell, arranges a cooling medium in the jacket, arranges a liquid inlet on the top of the jacket, and arranges a liquid outlet on the bottom of the jacket. The device has a simple structure and is easy to use. By arranging the cooling mechanism, it has significant advantages and practicality. It can not only effectively reduce the temperature of the thermocouple and extend the service life, but also protect the thermocouple from the direct influence of the high temperature environment. The application can be applicable to temperature measurement applications in various high temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the main structure of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the cooling mechanism of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the installation mechanism of the utility model.

[0026] In the figure: 1. Thermocouple body; 2. Insulating sleeve; 3. Detection end; 4. Protective shell; 5. Terminal post; 6. Junction box; 7. Box cover; 8. Wiring sleeve; 9. Flange; 10. Fixing hole; 11. Jacket; 12. Liquid inlet; 13. Liquid outlet; 14. Threaded section; 15. Stopper; 16. Groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-3 , the utility model provides a technical solution:

[0029] A thermocouple with cooling protection function, comprising a main structure; the main structure comprises a thermocouple body 1 and an insulating sleeve 2 arranged outside the thermocouple body 1, a detection end 3 is arranged at the lower end of the thermocouple body 1, and a terminal 5 is arranged at the upper end of the thermocouple body 1;

[0030] It includes a protection mechanism for protecting the thermocouple body 1; the protection includes a protection shell 4, a junction box 6 is installed on the upper end of the protection shell 4, and a box cover 7 is installed on the top of the junction box 6; the terminal 5 extends to the inner cavity of the junction box 6, and a wiring pipe sleeve connected to the inside of the junction box 6 is provided on the outer wall of one side of the junction box 6 for the wire to enter the junction box 6 to connect the terminal 5.

[0031] A cooling mechanism is included for cooling and protecting the thermocouple;

[0032] The cooling mechanism includes a jacket 11 arranged on the outer wall of the protective shell 4, a cooling medium is arranged inside the jacket 11, a liquid inlet 12 for the cooling medium to enter is arranged at the top of the jacket 11, and a liquid outlet 13 for the cooling medium to flow out is arranged at the bottom of the jacket 11.

[0033] The utility model arranges a protective shell 4 outside the thermocouple body 1, a junction box 6 is arranged on the top of the protective shell 4, a cooling mechanism including a jacket 11 is arranged on the outer wall of the protective shell 4, a cooling medium is arranged in the jacket 11, a liquid inlet 12 is arranged on the top of the jacket 11, and a liquid outlet 13 is arranged on the bottom of the jacket 11. The device has a simple structure and is easy to use. By arranging the cooling mechanism, it has significant advantages and practicality. It can not only effectively reduce the temperature of the thermocouple and extend the service life, but also protect the thermocouple from the direct influence of the high temperature environment. The application can be applicable to temperature measurement applications in various high temperature environments.

[0034] In actual use, the equipment is installed in a suitable position through the flange 9, the detection end 3 of the thermocouple body 1 is inserted into the area to be detected, the box cover 7 of the junction box 6 is opened, the wire is passed through the wiring sleeve 8 and connected to the terminal 5 of the thermocouple body 1, and then the box cover 7 is closed. After the wire is connected, the area to be detected can be detected. During the use of the equipment, the liquid inlet 12 at the top of the jacket 11 is connected to the liquid inlet pipe, and the liquid outlet pipe is connected to the liquid outlet 13 at the bottom of the jacket 11, and a conveying device is used to convey the cooling medium. The cooling medium enters the jacket 11 through the liquid inlet 12 and makes all-round seamless contact with the protective shell 4. The heat of the equipment is taken away when the cooling medium leaves the jacket 11, thereby achieving the purpose of cooling the thermocouple.

[0035] More specifically, the cooling medium in the jacket 11 is water.

[0036] More specifically, the cooling medium in the jacket 11 is oil.

[0037] The cooling medium in the device can be water or oil. In this case, a pump body can be used to pump the cooling medium into the jacket 11 for cooling.

[0038] Furthermore, the cooling medium in the device can also be set to air. In this case, an air cooler can be used in conjunction. The air cooler draws external air, cools it and transports it to the jacket 11. When the air leaves the jacket 11, it takes away the heat of the equipment, thereby also achieving the purpose of cooling the thermocouple.

[0039] See also Figure 3 :

[0040] The device also includes a mounting mechanism for mounting the device, the mounting mechanism including a flange 9 arranged on the protective shell 4. The flange 9 is provided with fixing holes 10, and the fixing holes 10 are arranged in a plurality of groups around the flange 9 at equal intervals.

[0041] By setting a flange 9 with fixing holes 10 on the protective shell 4, when in actual use, the lower end of the protective shell 4 is inserted into the area to be detected. At this time, the flange 9 is in contact with the surface of the area to be detected, and the equipment can be installed and fixed by fixing screws in conjunction with the fixing holes 10.

[0042] For further information, see Figure 3 :

[0043] The outer wall of the protective shell 4 is provided with a threaded section 14, the flange 9 is threadedly mounted on the threaded section 14, and the upper and lower ends of the threaded section 14 are provided with stoppers 15 on the protective shell 4. The bottom of the flange 9 is provided with a groove 16, and the groove 16 corresponds to the stopper 15.

[0044] A threaded section 14 is provided on the outer wall of the protective shell 4, and blocks 15 are provided on both sides of the threaded section 14, and the flange 9 is threadedly installed on the threaded section 14. The protrusion length of the thermocouple can be adjusted according to actual needs. For example, when it is necessary to go deeper, the flange 9 is moved up on the threaded section 14, and then the equipment is tightened by the flange 9. The equipment can be flexibly adjusted according to the operation requirements, thereby improving the use scope and applicability of the device.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A thermocouple with cooling protection function, characterized in that: Including the main structure; The main structure comprises a thermocouple body (1) and an insulating sleeve (2) arranged outside the thermocouple body (1); a detection end (3) is arranged at the lower end of the thermocouple body (1); and a terminal (5) is arranged at the upper end of the thermocouple body (1); It comprises a protection mechanism for protecting a thermocouple body (1); The protection comprises a protective shell (4), a junction box (6) is installed on the upper end of the protective shell (4), and a box cover (7) is installed on the top of the junction box (6); A cooling mechanism is included for cooling and protecting the thermocouple; The cooling mechanism comprises a jacket (11) arranged on the outer wall of the protective shell (4), a cooling medium is arranged inside the jacket (11), a liquid inlet (12) for the cooling medium to enter is arranged at the top of the jacket (11), and a liquid outlet (13) for the cooling medium to flow out is arranged at the bottom of the jacket (11).

2. A thermocouple with cooling protection function according to claim 1, characterized in that: The terminal (5) extends to the inner cavity of the terminal box (6), and a terminal sleeve connected to the interior of the terminal box (6) is provided on one side outer wall of the terminal box (6) to allow a wire to enter the terminal box (6) to connect to the terminal (5).

3. A thermocouple with cooling protection function according to claim 1, characterized in that: The cooling medium in the jacket (11) is water.

4. A thermocouple with cooling protection function according to claim 1, characterized in that: The cooling medium in the jacket (11) is oil.

5. The thermocouple with cooling protection function according to claim 1, characterized in that: It also comprises a mounting mechanism for mounting the device, wherein the mounting mechanism comprises a flange (9) arranged on the protective shell (4).

6. A thermocouple with cooling protection function according to claim 5, characterized in that: The flange (9) is provided with fixing holes (10), and a plurality of fixing holes (10) are provided on the flange (9) at equal intervals.

7. A thermocouple with cooling protection function according to claim 6, characterized in that: A threaded section (14) is provided on the outer wall of the protective shell (4), the flange (9) is threadedly mounted on the threaded section (14), and stoppers (15) are provided at both upper and lower ends of the threaded section (14) on the protective shell (4).

8. A thermocouple with cooling protection function according to claim 7, characterized in that: The bottom of the flange (9) is provided with a groove (16), and the groove (16) corresponds to the stopper (15).

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