Heat-resistant explosion-proof thermocouple

Abstract

The utility model discloses a heat-resistant explosion-proof thermocouple, which is characterized in that the upper surface of a base is fixedly connected with a linear motor, the output end of the linear motor is fixedly connected with a first cooling box, the outer surface of the first cooling box is fixedly connected with a second cooling box, and the outer surface of the second cooling box is fixedly connected with a third cooling box; the lower surface of the fixing frame is fixedly connected with a hydraulic rod, the output end of the hydraulic rod is fixedly connected with a fixing block, the upper surface of the fixing block is provided with a hole, the inner wall of the hole is fixedly connected with a thermocouple, the thermocouple is resistant to heat through a high-temperature-resistant protective sleeve, and the thermocouple is cooled in a stepped mode, so that continuous measurement of multiple positions or frequent replacement of measurement positions is facilitated. The subsequent measurement result is not interfered or influenced, and the surface of the thermocouple is not cracked due to rapid cooling or heating; by automatically testing the temperature of the pipeline, the step of manual operation of workers is omitted, and the temperature measurement efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to a heat-resistant and explosion-proof thermocouple. Background Art

[0002] A thermocouple is a temperature sensor that uses the thermoelectric effect to measure temperature. It consists of two wires made of different metal materials. The contact point of the two materials forms a thermoelectric joint. When there is a temperature difference at the joint, a thermoelectric potential difference will be generated in the wire, which is the thermoelectric effect. By measuring the thermoelectric potential difference, the temperature difference can be determined and converted into a temperature value. At present, thermocouples have been widely used in various fields, including industrial control, petrochemicals, electricity, metallurgy, and medical treatment. With the development of science and technology, the accuracy and stability of thermocouples are constantly improving. However, the temperature at the place where the thermocouple is tested is very high, so the thermocouple needs to have heat-resistant and explosion-proof functions. In addition, the temperature of the thermocouple drops slowly after the test, so it needs to be It needs to be cooled before the next test, and rapid cooling or heating may cause the surface of the thermocouple to burst. A Chinese patent discloses a "thermocouple" with the application number "CN201120080196.1". Its structure includes a mounting seat and a stainless steel protective cover. The mounting seat is arranged on the top of the stainless steel protective cover, and a temperature sensing point is arranged at the lower end of the stainless steel protective cover. A high-temperature resistant protective cover is arranged outside the stainless steel protective cover on the upper side of the temperature sensing point. It has a reasonable design, a simple structure, is easy to process, is convenient to use, and has a long service life. However, it cannot solve the problem that the temperature of the thermocouple drops slowly after the test, and it needs to be cooled before the next test, and rapid cooling or heating may cause the surface of the thermocouple to burst. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a heat-resistant and explosion-proof thermocouple. The thermocouple is made heat-resistant by a high-temperature resistant protective sleeve, and the thermocouple is cooled in a step-by-step manner to facilitate continuous measurement of multiple positions or frequent changes in measurement positions, without causing interference or influence on subsequent measurement results, and the surface of the thermocouple will not burst due to rapid cooling or heating; the automatic testing of pipeline temperature eliminates the steps that require workers to operate personally, thereby improving the efficiency and accuracy of temperature measurement.

[0004] The utility model also provides the above-mentioned heat-resistant and explosion-proof thermocouple, comprising: a base, the upper surface of the base is fixedly connected to a linear motor, the output end of the linear motor is fixedly connected to a first cooling box, the outer surface of the first cooling box is fixedly connected to a second cooling box, and the outer surface of the second cooling box is fixedly connected to a third cooling box; the lower surface of the fixed frame is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to a fixed block, the upper surface of the fixed block is provided with a hole, the inner wall of the hole is fixedly connected to a thermocouple, the outer surface of the thermocouple is fixedly connected to a high-temperature resistant protective sleeve, and the lower surface of the thermocouple is provided with a temperature sensing point.

[0005] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the outer surface of the fixing frame is provided with a hole, and the inner wall of the hole is fixedly connected with a push handle, so that the thermocouple can be conveniently controlled and moved, thereby improving the convenience and flexibility of operation.

[0006] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the high-temperature resistant protective sleeve is installed above the temperature sensing point, and the outer surface of the high-temperature resistant protective sleeve is fixedly connected to the fixing block, thereby improving the stability and durability of the thermocouple.

[0007] According to the heat-resistant and explosion-proof thermocouple described in the utility model, a receiving groove is provided on the upper surface of the base, and the interior of the receiving groove is movably connected to the thermocouple, so that the thermocouple can maintain a stable position during use, avoiding accidental movement or tilting, and improving the accuracy of measurement.

[0008] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the lower surfaces of the second cooling box and the third cooling box are fixedly connected to the linear motor, and the movement directions of the first cooling box, the second cooling box and the third cooling box are the same, so the synchronous movement of the cooling boxes can be achieved, thereby realizing step-by-step cooling.

[0009] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the outer surface of the base is fixedly connected to the fixing frame, and the outer surface of the base is connected to rollers via an axis, so that the entire thermocouple device can be easily moved, thereby improving the convenience of transportation and arrangement.

[0010] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the outer surface of the first cooling box is movably connected to the fixed frame, and the interiors of the first cooling box, the second cooling box and the third cooling box are all movably connected to the thermocouple, thereby achieving an effective cooling effect, and will not interfere with or affect subsequent measurement results, thereby improving the working efficiency and stability of the thermocouple.

[0011] According to the heat-resistant and explosion-proof thermocouple described in the utility model, the outer surface of the push handle is provided with an anti-slip rubber pad, and the material of the high-temperature resistant protective cover is ceramic. The ceramic material of the high-temperature resistant protective cover has good heat resistance and protects the thermocouple from the influence of high-temperature environment.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, this heat-resistant and explosion-proof thermocouple makes the thermocouple heat-resistant by a high-temperature resistant protective sleeve, and facilitates continuous measurement of multiple positions or frequent changes of measurement positions by step-by-step cooling of the thermocouple, which will not interfere with or affect the subsequent measurement results, and will not cause the surface of the thermocouple to burst due to rapid cooling or heating.

[0014] 2. Compared with the prior art, this heat-resistant and explosion-proof thermocouple eliminates the need for workers to operate in person by automatically testing the pipeline temperature, thereby improving the efficiency and accuracy of temperature measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is the overall structure diagram of the heat-resistant and explosion-proof thermocouple of the utility model;

[0017] Figure 2 It is a top view of the heat-resistant and explosion-proof thermocouple of the utility model;

[0018] Figure 3 This is a bottom view of the heat-resistant and explosion-proof thermocouple of the utility model;

[0019] Figure 4 It is a rear view of the heat-resistant and explosion-proof thermocouple of the utility model.

[0020] Legend:

[0021] 1. Fixed frame; 2. Base; 3. Roller; 4. Hydraulic rod; 5. Fixed block; 6. First cooling box; 7. Second cooling box; 8. Third cooling box; 9. Thermocouple; 10. Linear motor; 11. Pusher; 901. High temperature resistant protective cover; 902. Temperature sensing point. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is a heat-resistant and explosion-proof thermocouple, which includes: a base 2, which provides a stable support platform, a linear motor 10 is fixedly connected to the upper surface of the base 2, so that the first cooling box 6, the second cooling box 7 and the third cooling box 8 move, the linear motor 10 is fixedly connected to the first cooling box 6 at the output end, which is used to provide a cooling effect, the outer surface of the first cooling box 6 is fixedly connected to the second cooling box 7, which is used to provide a cooling effect, but the temperature of the cooling medium inside is higher than that of the first cooling box 6, the outer surface of the second cooling box 7 is fixedly connected to the third cooling box 8, which is used to provide a cooling effect, but the inner The temperature of the cooling medium in the first cooling box 7 is higher than that in the second cooling box 7; a hydraulic rod 4 is fixedly connected to the lower surface of the fixed frame 1 to control the lifting of the thermocouple 9, and a fixed block 5 is fixedly connected to the output end of the hydraulic rod 4 to fix the position of the thermocouple 9. A hole is provided on the upper surface of the fixed block 5, and a thermocouple 9 is fixedly connected to the inner wall of the hole to be used for measuring the temperature of the sensor. A high-temperature resistant protective sleeve 901 is fixedly connected to the outer surface of the thermocouple 9 to protect the thermocouple 9 from the influence of the high-temperature environment. A temperature sensing point 902 is provided on the lower surface of the thermocouple 9, which is a part of the thermocouple 9 and is used to sense and measure temperature changes.

[0024] The outer surface of the fixed frame 1 is provided with a hole, and the inner wall of the hole is fixedly connected with a push handle 11, which is used to control and move the handle of the entire thermocouple 9. The high temperature resistant protective cover 901 is installed above the temperature sensing point 902. The outer surface of the high temperature resistant protective cover 901 is fixedly connected to the fixed block 5. The upper surface of the base 2 is provided with a receiving groove, and the interior of the receiving groove is movably connected to the thermocouple 9. The lower surfaces of the second cooling box 7 and the third cooling box 8 are fixedly connected to the linear motor 10. The movement directions of the first cooling box 6, the second cooling box 7 and the third cooling box 8 are the same. The outer surface of the base 2 is fixedly connected to the fixed frame 1, and the outer surface of the base 2 is connected with a roller 3 through an axis, so that the entire thermocouple 9 can be easily moved on the plane. The outer surface of the first cooling box 6 is movably connected to the fixed frame 1, and the interiors of the first cooling box 6, the second cooling box 7 and the third cooling box 8 are all movably connected to the thermocouple 9. The outer surface of the push handle 11 is provided with an anti-slip rubber pad, and the material of the high temperature resistant protective cover 901 is ceramic.

[0025] Working principle: first, the linear motor 10 is connected through the base 2, the linear motor 10 is connected to the first cooling box 6, the first cooling box 6 is connected to the second cooling box 7, the second cooling box 7 is connected to the third cooling box 8, the first cooling box 6, the second cooling box 7 and the third cooling box 8 are connected to the thermocouple 9, and the thermocouple 9 is cooled in a step-by-step manner to facilitate continuous measurement of multiple positions or frequent changes of measurement positions, and will not interfere with or affect the subsequent measurement results; the base 2 is connected to the fixed frame 1, the fixed frame 1 is connected to the hydraulic rod 4, the hydraulic rod 4 is connected to the fixed block 5, the fixed block 5 is provided with a hole, and the hole is connected to the thermocouple 9. By automatically testing the pipeline temperature, the steps that require workers to operate personally are omitted, thereby improving the efficiency and accuracy of temperature measurement.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A heat-resistant and explosion-proof thermocouple, characterized in that: include: A base (2), wherein a linear motor (10) is fixedly connected to the upper surface of the base (2), an output end of the linear motor (10) is fixedly connected to a first cooling box (6), an outer surface of the first cooling box (6) is fixedly connected to a second cooling box (7), and an outer surface of the second cooling box (7) is fixedly connected to a third cooling box (8); A hydraulic rod (4) is fixedly connected to the lower surface of the fixed frame (1); an output end of the hydraulic rod (4) is fixedly connected to a fixed block (5); a hole is provided on the upper surface of the fixed block (5); a thermocouple (9) is fixedly connected to the inner wall of the hole; a high-temperature resistant protective sleeve (901) is fixedly connected to the outer surface of the thermocouple (9); and a temperature sensing point (902) is provided on the lower surface of the thermocouple (9).

2. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The outer surface of the fixing frame (1) is provided with a hole, and the inner wall of the hole is fixedly connected with a push handle (11).

3. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The high temperature resistant protective sleeve (901) is installed above the temperature sensing point (902), and the outer surface of the high temperature resistant protective sleeve (901) is fixedly connected to the fixing block (5).

4. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The upper surface of the base (2) is provided with a receiving groove, and the interior of the receiving groove is movably connected to the thermocouple (9).

5. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The lower surfaces of the second cooling box (7) and the third cooling box (8) are both fixedly connected to the linear motor (10), and the movement directions of the first cooling box (6), the second cooling box (7) and the third cooling box (8) are the same.

6. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The outer surface of the base (2) is fixedly connected to the fixing frame (1), and the outer surface of the base (2) is connected to a roller (3) via a shaft.

7. A heat-resistant and explosion-proof thermocouple according to claim 1, characterized in that: The outer surface of the first cooling box (6) is movably connected to the fixing frame (1), and the interiors of the first cooling box (6), the second cooling box (7) and the third cooling box (8) are all movably connected to the thermocouple (9).

8. A heat-resistant and explosion-proof thermocouple according to claim 2, characterized in that: The outer surface of the push handle (11) is provided with an anti-slip rubber pad, and the material of the high temperature resistant protective cover (901) is ceramic.

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