Strong magnetic attraction type surface thermocouple

Abstract

The utility model discloses a strong magnetic attraction type surface thermocouple which comprises a temperature sensing heat collection block and an armored thermocouple core body, a spring base is sleeved on the armored thermocouple core body, a stainless steel spring is sleeved on the spring base, the temperature sensing heat collection block is arranged below the armored thermocouple core body, and the stainless steel spring is sleeved on the temperature sensing heat collection block. The outer side of the stainless steel spring is sleeved with a spring stop block, the bottom face of the spring stop block is provided with a strong magnet and a magnetic attraction base, and a shell connector and a junction box are arranged above the sheathed thermocouple core body. Silver brazing filler metal is arranged in a groove in the top face of the temperature sensing and heat collecting block. According to the utility model, the sheathed thermocouple core body is connected with the temperature-sensing heat-collecting block through silver brazing, the heat-collecting block increases the temperature-sensing area, the silver brazing filler metal in the middle can increase the temperature-sensing speed, and the outer layer of the heat-collecting block is completely wrapped with the silver brazing filler metal, so that the heat-preserving effect is achieved, and the temperature-sensing precision is improved; the heat collection block can be completely attached to the surface of a measured object through the strong magnet and the stainless steel spring.

Description

Technical Field

[0001] This utility model relates to the field of thermocouple technology, specifically to a strong magnetic suction surface thermocouple. Background Technology

[0002] Surface thermocouples often require accurate temperature sensing and rapid response to detect the surface temperature of pipes, tanks, and equipment. To achieve good temperature measurement results, surface thermocouples are frequently welded to the object being measured using mounting components. However, a series of problems can arise during the welding process, such as: inaccurate welding position; the thinness of the object being measured can easily lead to weld burn-through and scrapping; and inconsistencies between the armor material and the mounting component material can cause cracking after welding, resulting in a failure to seal. Ordinary magnetic surface thermocouples on the market often suffer from inaccurate temperature measurement and failure to adhere to high-temperature surfaces. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a strong magnetic suction surface thermocouple, in which the armored thermocouple core and the temperature-sensing heat collection block are connected by silver brazing. The heat collection block increases the temperature-sensing area, and the silver brazing material in the middle can improve the temperature sensing speed. The outer layer of the heat collection block is completely wrapped with silver brazing material to achieve the heat preservation effect and improve the temperature sensing accuracy. The strong magnet and stainless steel spring can make the heat collection block completely adhere to the surface of the object being measured.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: a strong magnetic attraction surface thermocouple, comprising a temperature-sensing heat collection block and an armored thermocouple core, wherein a spring base is fitted on the armored thermocouple core, and a stainless steel spring is fitted on the spring base; a temperature-sensing heat collection block is provided below the armored thermocouple core; a spring stop is fitted on the outside of the stainless steel spring; a strong magnet and a magnetic attraction base are provided on the bottom surface of the spring stop; and a shell connector and a junction box are provided above the armored thermocouple core.

[0005] The groove on the top surface of the temperature-sensing heat collector is provided with silver brazing filler metal.

[0006] In a preferred embodiment of the strong magnetic suction surface thermocouple described in this utility model, the spring base and the armored thermocouple core are welded together, and the distance between the spring base and the temperature-sensing heat collection block is 38.5mm.

[0007] In a preferred embodiment of the strong magnetic suction surface thermocouple described in this utility model, the magnetic suction base and the strong magnet are located between the temperature-sensing heat collection block and the spring base, and the spring stop is located above the spring base.

[0008] As a preferred embodiment of the strong magnetic suction surface thermocouple described in this utility model, the magnetic base and the spring stop are provided with magnetic guard plates and screws on their sides.

[0009] The magnetic base and the spring stop have screw holes on their side walls.

[0010] As a preferred embodiment of the strong magnetic suction surface thermocouple described in this utility model, the four mounting holes on the magnet guard plate are aligned with the screw holes on the surface of the magnetic base and the spring stop, and the screws are screwed into the screw holes to fix the magnet guard plate.

[0011] In a preferred embodiment of the strong magnetic attraction surface thermocouple described in this utility model, the two ends of the armored thermocouple core are, in sequence, a cold end and a temperature sensing end, and the outer shell connector is welded to the cold end of the armored thermocouple core, with the junction box screwed onto the outer shell connector.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] The armored thermocouple core is connected to the temperature-sensing heat collection block by silver brazing. The heat collection block increases the temperature-sensing area, and the silver brazing material in the middle can improve the temperature sensing speed. The outer layer of the heat collection block is completely wrapped with silver brazing material, which achieves the heat preservation effect and improves the temperature sensing accuracy. The heat collection block can be completely attached to the surface of the object being measured by a strong magnet and a stainless steel spring. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a structural diagram of the present invention;

[0018] Figure 4 This is an exploded structural diagram of the spring base of this utility model;

[0019] Figure 5 This is a structural diagram showing the position of the silver brazing filler metal in this utility model.

[0020] In the diagram: 1. Magnetic base; 2. Strong magnet; 3. Spring stop; 4. Magnet guard plate; 5. Screw; 6. Temperature sensing heat collector; 7. Spring base; 8. Stainless steel spring; 9. Armored thermocouple core; 91. Cold junction; 92. Temperature sensing junction; 10. Outer shell connector; 11. Junction box; 12. Silver brazing filler metal. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a strong magnetic suction surface thermocouple. The armored thermocouple core is connected to the temperature-sensing heat collection block by silver brazing. The heat collection block increases the temperature-sensing area, and the silver brazing material in the middle can improve the temperature sensing speed. The outer layer of the heat collection block is completely wrapped with silver brazing material to achieve the heat preservation effect and improve the temperature sensing accuracy. The strong magnet and stainless steel spring can make the heat collection block completely adhere to the surface of the object being measured.

[0026] Figures 1-5 The diagram shown is an overall structural schematic of one embodiment of a strong magnetic suction surface thermocouple according to this utility model. Please refer to [link / reference]. Figure 1-5 The main structure of this embodiment includes: a heat-sensing block 6 and an armored thermocouple core 9. A spring base 7 is fitted on the armored thermocouple core 9, and a stainless steel spring 8 is fitted on the spring base 7. The heat-sensing block 6 is arranged below the armored thermocouple core 9. A spring stop 3 is fitted on the outside of the stainless steel spring 8. A strong magnet 2 and a magnetic base 1 are arranged on the bottom surface of the spring stop 3. A shell connector 10 and a junction box 11 are arranged above the armored thermocouple core 9.

[0027] Among them, silver brazing filler metal 12 is provided in the groove on the top surface of the heat-collecting block 6;

[0028] The magnetic base 1 and the spring stop 3 are provided with magnetic guard plates 4 and screws 5 on their sides;

[0029] Screw holes are provided on the side walls of the magnetic base 1 and the spring stop 3;

[0030] The four mounting holes on the magnetic guard plate 4 are aligned with the screw holes on the surface of the magnetic base 1 and the spring stop 3. The screws 5 are screwed into the screw holes to fix the magnetic guard plate 4.

[0031] In practical use, the sensing end 92 of the armored thermocouple core 9 is placed into the opening of the heat-collecting block 6, making the sensing end 92 flush with the end face of the heat-collecting block 6. The silver brazing filler 12, the heat-collecting block 6, and the armored thermocouple core 9 are heated, and the silver brazing filler 12 is guided into the groove of the heat-collecting block 6, ensuring it is flush with the end face of the heat-collecting block 6. Cooling is then performed to solidify the silver brazing filler 12, and the armored thermocouple core 9 and the heat-collecting block 6 are soldered together using the silver brazing filler 12. The magnetic base 1 is inserted through the cold end 91 of the armored thermocouple core 9, allowing the heat-collecting block 6 to be placed into the groove of the magnetic base 1. A strong magnet 2 is then inserted through the cold end 91 of the armored thermocouple core 9, causing the strong magnet 2 to adhere to the surface of the magnetic base 1. Insert the spring base 7 through the cold end 91 of the armored thermocouple core 9, and weld the spring base 7 to the armored thermocouple core 9 at a distance of 38.5mm from the end face of the temperature-sensing collector block 6. Insert the stainless steel spring 8 through the cold end 91 of the armored thermocouple core 9 and place it on the spring base 7. Insert the spring stop 3 through the cold end 91 of the armored thermocouple core 9, so that the spring stop 3 is attracted to the strong magnet 2 and simultaneously compresses the stainless steel spring 8. Align the four mounting holes on the magnet guard plate 4 with the screw holes on the surfaces of the magnetic base 1 and the spring stop 3, and screw the screws 5 into the screw holes to fix the magnet guard plate 4. The outer shell connector 10 is welded to the cold end 91 of the armored thermocouple core 9, and the junction box 11 is screwed onto the outer shell connector 10. Through the above assembly, the temperature-sensing heat collection block 6 and the armored thermocouple core 9 are connected by silver brazing 12. A strong magnet 2 and a stainless steel spring 8 are installed to achieve the purpose of rapid and accurate temperature sensing by the thermocouple. At the same time, the magnetic installation method allows the thermocouple to be installed in any position. Its process design is simple, easy to operate, and flexible in installation.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A strong magnetic attraction surface thermocouple, comprising a temperature-sensing heat collection block (6) and an armored thermocouple core (9), characterized in that, A spring base (7) is fitted on the armored thermocouple core (9), and a stainless steel spring (8) is fitted on the spring base (7). A heat-sensing and heat-collecting block (6) is provided below the armored thermocouple core (9). A spring stop block (3) is fitted on the outside of the stainless steel spring (8). A strong magnet (2) and a magnetic base (1) are provided on the bottom surface of the spring stop block (3). A shell connector (10) and a junction box (11) are provided above the armored thermocouple core (9). Among them, silver brazing filler metal (12) is provided in the groove on the top surface of the temperature-sensing heat collector (6).

2. The strong magnetic attraction surface thermocouple according to claim 1, characterized in that, The spring base (7) is welded to the armored thermocouple core (9), and the distance between the spring base (7) and the heat-sensing block (6) is 38.5 mm.

3. The strong magnetic attraction surface thermocouple according to claim 2, characterized in that, The magnetic base (1) and the strong magnet (2) are located between the heat-collecting block (6) and the spring base (7), and the spring stop (3) is located above the spring base (7).

4. A strong magnetic suction surface thermocouple according to claim 3, characterized in that, The magnetic base (1) and the spring stop (3) are provided with magnetic guard plates (4) and screws (5) on their sides; Screw holes are provided on the side walls of the magnetic base (1) and the spring stop (3).

5. A strong magnetic suction surface thermocouple according to claim 4, characterized in that, The four mounting holes on the magnetic guard plate (4) are aligned with the screw holes on the surface of the magnetic base (1) and the spring stop (3), and the screws (5) are screwed into the screw holes to fix the magnetic guard plate (4).

6. A strong magnetic suction surface thermocouple according to claim 5, characterized in that: The two ends of the armored thermocouple core (9) are a cold end (91) and a temperature sensing end (92) in sequence, and the outer shell connector (10) is welded to the cold end (91) of the armored thermocouple core (9), and the junction box (11) is screwed onto the outer shell connector (10).

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