Wear-resistant protective tube thermocouple

Abstract

The utility model provides a wear-resistant protective tube thermocouple, and belongs to the technical field of thermocouples. Comprising a protection tube body, a fixing seat and a junction box, two clamping blocks are arranged on the outer ring of the protection tube body, L-shaped clamping grooves used in cooperation with the clamping blocks are formed in the inner ring of the fixing seat, baffles are installed at the top and the bottom of an inner cavity of each L-shaped clamping groove, and the baffles are made of elastic materials. According to the protective sleeve, the protective tube, the fixing base, the L-shaped clamping groove, the baffle and the clamping block are matched for use, when the protective sleeve is damaged and needs to be maintained or replaced, the protective tube is rotated, the protective tube drives the clamping block to move, the clamping block extrudes the baffle, and the protective tube can be taken down until the clamping block is separated from the clamping groove, so that the protective tube is replaced or maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to a wear-resistant protection tube thermocouple. Background Art

[0002] Thermocouple, also known as the temperature measuring element commonly used in temperature measuring instruments, is a temperature collector that uses the Seebeck effect of metal conductors for temperature sensing. It consists of two conductors of different materials to form a closed loop, directly measures temperature, and converts the temperature signal into a thermoelectric potential signal, which is converted into the temperature of the measured medium through electrical instruments. Thermocouples have the characteristics of fast response speed, wide range, and low price. Therefore, they have been widely used in many industrial fields, such as temperature measurement in metallurgy, chemical industry, electric power and other industries. In addition, the working principle diagram of thermocouples can clearly show the structure and function of thermocouples, as well as the functional relationship between the thermocouple graduation table and thermoelectric potential.

[0003] However, after long-term use, the protective cover of existing thermocouples may be damaged and difficult to replace, which may have a negative impact on the accuracy and reliability of temperature measurement. Since the protective cover of the thermocouple is usually made of metal or ceramic and other materials, it has good durability and corrosion resistance. However, in some special environments, such as high temperature, high pressure, strong acid and alkali, the protective cover is susceptible to damage such as corrosion, wear or cracking. When the protective cover is damaged, the sensitive part of the thermocouple is exposed to the outside and is easily affected by the external environment, resulting in inaccurate temperature measurement results. In addition, if the damaged protective cover is not replaced in time, it may cause further damage to the thermocouple or even fail to work normally. Therefore, the present application provides a wear-resistant protective tube thermocouple to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a wear-resistant protection tube thermocouple to solve the problem that the protection sleeve of the existing thermocouple is damaged and inconvenient to replace after long-term use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A wear-resistant protection tube thermocouple comprises: a protection tube body, a fixing seat and a junction box, wherein the outer ring of the protection tube body is provided with two clamping blocks, the inner ring of the fixing seat is provided with an L-shaped clamping groove used in conjunction with the clamping block, the top and bottom of the inner cavity of the L-shaped clamping groove are both installed with baffles, and the material of the baffle is an elastic material.

[0007] The junction box is installed on the top of the fixing seat, and a flange is installed on the outer ring of the protection tube body.

[0008] Two thermocouple wires are arranged inside the protection tube body, and the outer ring of the thermocouple wires is provided with a heat conduction pipe, which is a carbon steel heat conduction pipe.

[0009] The protection tube body comprises an outer protective sleeve and an inner protective sleeve, and the outer protective sleeve is made of a high temperature resistant and wear resistant material.

[0010] A space is formed between the outer protective cover and the inner protective cover.

[0011] The space is filled with high temperature resistant filling material.

[0012] The surface of the outer protective sleeve is sprayed with an anti-corrosion coating layer.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects: in the above scheme, by setting the protective tube, the fixing seat, the L-shaped slot, the baffle and the card block for coordinated use, when the protective cover is damaged and needs to be repaired or replaced, the protective tube is rotated, the protective tube drives the card block to move, and the card block squeezes the baffle until the card block is out of the slot, and the protective tube can be removed, thereby replacing or repairing the protective tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the wear-resistant protection tube thermocouple.

[0016] Figure 2 This is a schematic diagram of the junction box structure.

[0017] Figure 3 It is a schematic diagram of the L-shaped slot structure.

[0018] Figure 4 This is a schematic diagram of the flange structure.

[0019] Figure 5 This is a schematic diagram of the card block structure.

[0020] Figure 6 Schematic diagram of the thermocouple wire structure.

[0021] Figure 7 Schematic diagram of the heat pipe structure.

[0022] Figure 8 Schematic diagram of the protection tube structure.

[0023] Fig. 9 Schematic diagram of the outer protective cover structure.

[0024] Fig.10 Schematic diagram of the structure of high temperature resistant filling material.

[0025] [Figure Symbols] 1. Protective tube body; 101. Outer protective cover; 102. Space; 103. Inner protective cover; 104. High temperature resistant filling material; 2. Flange; 3. Junction box; 4. Fixed seat; 5. L-shaped slot; 6. Baffle; 7. Block; 8. Thermocouple wire; 9. Heat pipe.

[0026] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0027] The following is a detailed description of a wear-resistant protection tube thermocouple provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an embodiment of the utility model provides a wear-resistant protection tube thermocouple, including a protection tube body 1, a fixing seat 4 and a junction box 3, the outer ring of the protection tube body 1 is provided with two clamping blocks 7, the inner ring of the fixing seat 4 is provided with an L-shaped slot 5 used in conjunction with the clamping block 7, and the top and bottom of the inner cavity of the L-shaped slot 5 are both installed with baffles 6, and the material of the baffle 6 is an elastic material.

[0029] like Figure 2 , Figure 5 and Figure 6 As shown, the junction box 3 is installed on the top of the fixing seat 4, and the outer ring of the protection tube body 1 is installed with a flange 2.

[0030] The main function of flange 2 is to improve the stability and reliability of the connection and ensure the sealing of the connection part. Flange 2 can effectively enhance the connection strength between the protective pipe and the equipment and ensure the safety of the entire device during operation. In addition, flange 2 can also facilitate the installation and maintenance of the equipment, making the whole process more efficient and convenient.

[0031] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, two thermocouple wires 8 are arranged inside the protection tube body 1, and the outer ring of the thermocouple wires 8 is provided with a heat conduction pipe 9, which is a carbon steel heat conduction pipe.

[0032] The main function of the heat pipe 9 is to achieve rapid heat transfer, which utilizes the heat conduction principle and the rapid heat transfer property of the refrigerant to more efficiently transfer the heat energy generated by the thermocouple wire 8 to improve the working efficiency of the entire thermocouple wire 8.

[0033] like Fig. 9 and Fig.10 As shown, the protection tube body 1 includes an outer protective sleeve 101 and an inner protective sleeve 103 , and the outer protective sleeve 101 is made of a high temperature resistant and wear resistant material.

[0034] The outer protective cover 101 is made of high temperature resistant and wear-resistant material, can work stably in a high temperature environment, and will not deteriorate or deform due to excessive temperature. In addition, the outer protective cover 101 also has excellent anti-oxidation properties and can prevent itself from oxidation at high temperatures. Secondly, the outer protective cover 101 can effectively protect the internal thermocouple wire 8 from damage caused by excessive pressure, material speed, corrosion and other factors, thereby extending the service life of the thermocouple wire 8 and maintaining its high precision and stability.

[0035] like Fig. 9 and Fig.10 As shown, a space 102 is formed between the outer protective cover 101 and the inner protective cover 103 .

[0036] The existence of the space 102 between the outer protective cover 101 and the inner protective cover 103 is helpful to alleviate the influence of the external pressure on the internal articles, thereby improving the durability of the protection tube body 1.

[0037] like Fig.10 As shown, the space 102 is filled with a high temperature resistant filling material 104 .

[0038] The space 102 and the high temperature resistant filling material 104 filled therein can provide additional heat insulation effect, further ensuring the temperature stability of the internal items.

[0039] like Fig. 9 and Fig.10 As shown, the surface of the outer protective cover 101 is sprayed with an anti-corrosion coating layer.

[0040] The anti-corrosion coating layer is a protective layer covering the surface of the outer protective cover 101, which is used to prevent the metal from chemically or electrochemically reacting with the surrounding environment, thereby avoiding adverse effects such as corrosion and oxidation. The anti-corrosion coating layer consists of a primer, an intermediate paint and a topcoat, and is used to prevent corrosion, extend service life and improve environmental adaptability.

[0041] The technical solution provided by the utility model can improve the sensitivity of the thermocouple wire 8 through the use of the heat pipe 9 when in use, and the high temperature resistance of the outer protective sleeve 101 can protect the internal cables or equipment from heat damage in a high temperature environment. When the protective tube body 1 needs to be replaced, the block 7 is rotated to make the block 7 away from the L-shaped slot 5.

[0042] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A wear-resistant protection tube thermocouple, characterized in that: include: A protective tube body (1), a fixing seat (4) and a junction box (3), wherein the outer ring of the protective tube body (1) is provided with two clamping blocks (7), the inner ring of the fixing seat (4) is provided with an L-shaped clamping groove (5) used in conjunction with the clamping block (7), and baffles (6) are installed at the top and bottom of the inner cavity of the L-shaped clamping groove (5), and the material of the baffles (6) is an elastic material.

2. The wear-resistant protection tube thermocouple according to claim 1, characterized in that: The junction box (3) is installed on the top of the fixing seat (4), and a flange (2) is installed on the outer ring of the protection tube body (1).

3. The wear-resistant protection tube thermocouple according to claim 1, characterized in that: Two thermocouple wires (8) are arranged inside the protection tube body (1), and the outer ring of the thermocouple wires (8) is provided with a heat conduction pipe (9), and the heat conduction pipe (9) is a carbon steel heat conduction pipe.

4. The wear-resistant protection tube thermocouple according to claim 1, characterized in that: The protective tube body (1) comprises an outer protective sleeve (101) and an inner protective sleeve (103); the outer protective sleeve (101) is made of a high temperature resistant and wear resistant material.

5. The wear-resistant protection tube thermocouple according to claim 4, characterized in that: A space (102) is formed between the outer protective cover (101) and the inner protective cover (103).

6. The wear-resistant protection tube thermocouple according to claim 5, characterized in that: The space (102) is filled with a high temperature resistant filling material (104).

7. The wear-resistant protection tube thermocouple according to claim 4, characterized in that: The surface of the outer protective sleeve (101) is sprayed with an anti-corrosion coating layer.

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