A detachable furnace temperature uniformity detection multi-point probe

By designing a detachable sealing mechanism, the structural damage problem of multi-point thermocouples during welding for furnace temperature uniformity detection was solved, enabling rapid disassembly and replacement of thermocouples, improving detection efficiency, and adapting to various temperature measurement modes.

CN224303166UActive Publication Date: 2026-05-29CHONGQING BOSHENG INSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING BOSHENG INSTR CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-29

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Abstract

The utility model discloses a detachable furnace temperature uniformity detection multipoint couple relates to detection multipoint couple technical field, the utility model discloses a mounting flange is provided with sealing mechanism on, sealing mechanism includes inner ring sealing assembly and outer ring sealing assembly, inner ring sealing assembly includes the circular hole no.
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Description

Technical Field

[0001] This utility model belongs to the field of multi-point coupler technology, and in particular relates to a detachable multi-point coupler for detecting furnace temperature uniformity. Background Technology

[0002] Currently, the industry typically uses a nine-point temperature measurement method to test the uniformity of furnace temperature. There are also special requirements for 5, 12, or 15 points. Traditionally, after machining multiple holes in the flange, thermocouples are inserted into the flange and welded to seal it. Finally, the thermocouples are inserted one by one through the holes in the flange and fixed on the temperature measuring frame in the furnace.

[0003] However, when using existing multi-point thermocouples for furnace temperature uniformity testing, in order to improve the temperature measurement response speed, small-diameter armored thermocouples are usually used. Their walls are very thin, and during welding, it is extremely easy to damage the internal structure of the thermocouple, leading to short circuits. If problems are encountered after welding, disassembly is also very troublesome, which greatly reduces work efficiency and is not conducive to the furnace temperature detection work. Utility Model Content

[0004] The purpose of this invention is to provide a detachable multi-point thermocouple for furnace temperature uniformity detection. By setting a sealing mechanism, it solves the problem that in order to improve the temperature measurement response speed, small-diameter armored thermocouples with very thin walls are usually used in furnace temperature uniformity testing. During the welding process, the internal structure of the thermocouple is easily damaged, leading to short circuits. If problems are encountered after welding, disassembly is also very troublesome, which greatly reduces work efficiency and is not conducive to the furnace temperature detection work.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a detachable multi-point coupler for detecting furnace temperature uniformity, including a mounting flange, on which a sealing mechanism is provided;

[0007] The sealing mechanism includes an inner ring sealing assembly and an outer ring sealing assembly. The inner ring sealing assembly includes several circular holes I formed on the mounting flange. Large sealing columns are fixedly connected to the inner walls of the several circular holes I. Large holes I are formed at the central axes of the several large sealing columns. The outer ring sealing assembly includes several circular holes II formed on the mounting flange. Small sealing columns are fixedly connected to the inner walls of the several circular holes II. Small holes I are formed at the central axes of the several small sealing columns.

[0008] Furthermore, the mounting flange is provided with several thermocouples, and the top of each of the several large sealing columns is fixedly connected with a screw, and a large hole is opened at the central axis of each of the screws.

[0009] Furthermore, each of the screws is threaded with a sealing nut, and a special sealing rubber plug is provided between the screws and the sealing nuts. A large hole is provided at the central axis of each sealing nut.

[0010] Furthermore, each of the small sealing posts is fixedly connected to a screw two at its top, and each of the screw two has a small hole two at its central axis.

[0011] Furthermore, the outer walls of several screws are threaded with sealing nuts, and special sealing rubber plugs are provided between the sealing nuts and screws. Small holes are provided at the central axis of the sealing nuts.

[0012] This utility model has the following beneficial effects:

[0013] 1. By setting an inner ring sealing assembly, several thermocouples with larger diameters are passed through the large hole three on the sealing nut one through the special sealing rubber plug one. At this time, the bottoms of the thermocouples then pass through the large hole two on the screw one and the large hole one on the large sealing column. After the thermocouples pass through, by rotating the sealing nuts one and moving them downwards on the screws one respectively, the special sealing rubber plug one is fixed, thereby fixing the thermocouples and preventing them from falling off. This single-point detachable sealing structure allows for quick disassembly and replacement of faulty thermocouples in the event of later maintenance or failure, making it more convenient to use and improving customer testing efficiency.

[0014] 2. By setting an outer sealing assembly, smaller diameter thermocouples pass through several small holes on the sealing nuts (II) and then through the special sealing rubber plugs (II). At this time, the bottom of the thermocouples passes through the small holes on the screw (II) and the small sealing post (I). Then, the sealing nuts (II) are rotated and moved downwards on the screw (II), thereby squeezing the special sealing rubber plugs (II) to fix the thermocouples and prevent them from falling off. After testing the thermocouples, it is found that the multiple temperature measuring thermocouples evenly distributed on the flange have independent sealing structures, which can realize quick installation and removal of thermocouples in multi-point temperature measuring devices. The same device can be quickly switched to 5-point, 9-point, 12-point, and 15-point temperature measurement to meet the more diverse testing needs of customers.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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.

[0017] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the inner ring sealing assembly of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the outer ring sealing assembly of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Installation flange; 2. Sealing mechanism; 21. Inner ring sealing assembly; 211. Circular hole one; 212. Large sealing column; 213. Large hole one; 214. Screw one; 215. Large hole two; 216. Sealing nut one; 217. Special sealing rubber plug one; 218. Large hole three; 22. Outer ring sealing assembly; 221. Circular hole two; 222. Small sealing column; 223. Small hole one; 224. Screw two; 225. Small hole two; 226. Sealing nut two; 227. Special sealing rubber plug two; 228. Small hole three; 4. Thermocouple. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5As shown, this utility model is a detachable multi-point thermocouple for detecting furnace temperature uniformity, including a mounting flange 1. A sealing mechanism 2 is provided on the mounting flange 1. The sealing mechanism 2 includes an inner ring sealing assembly 21 and an outer ring sealing assembly 22. The inner ring sealing assembly 21 includes several circular holes 211 opened on the mounting flange 1. Large sealing posts 212 are fixedly connected to the inner walls of each of the several circular holes 211. Large holes 213 are opened at the central axes of each of the several large sealing posts 212. Several thermocouples 4 are provided on the mounting flange 1, and the tops of the several large sealing posts 212 are fixedly connected to... Each screw 214 has a large hole 215 at its central axis, and each screw 214 is threaded with a sealing nut 216. A special sealing rubber plug 217 is provided between each screw 214 and the sealing nut 216. Each sealing nut 216 has a large hole 218 at its central axis. By setting the inner ring sealing assembly 21, the single-point detachable sealing structure can be quickly disassembled and replaced when facing later maintenance or failure of the coupling, making it more convenient to use and improving the customer's testing efficiency.

[0026] The outer ring sealing assembly 22 includes a plurality of circular holes 221 formed on the mounting flange 1. Small sealing posts 222 are fixedly connected to the inner walls of each of the circular holes 221. Small holes 223 are formed at the central axis of each of the small sealing posts 222. Screws 224 are fixedly connected to the top of each of the small sealing posts 222. Small holes 225 are formed at the central axis of each of the screws 224. Sealing nuts 226 are threaded onto the outer walls of each of the screws 224. A special sealing rubber plug 227 is provided between the sealing nut 226 and several screws 224. Small holes 228 are provided at the central axis of the sealing nuts 226. By setting the outer ring sealing assembly 22, the multiple temperature measuring thermocouples evenly distributed on the flange are all made with independent sealing structures, which can realize the quick installation and removal of thermocouples of multi-point temperature measuring device. The same device can be quickly switched to 5-point, 9-point, 12-point, and 15-point temperature measurement to meet the more diverse testing needs of customers.

[0027] One specific application of this embodiment is as follows: In use, several thermocouples 4 with larger diameters are passed through the large hole 218 on the sealing nut 216 and through the special sealing rubber plug 217. The bottoms of the thermocouples 4 then protrude through the large hole 215 on the screw 214 and the large hole 213 on the large sealing post 212. After the thermocouples 4 have protruded, they are moved downwards on the screws 214 by rotating the sealing nuts 216 respectively. The special sealing rubber plug 217 is then fixed, thereby securing the thermocouples 4. To prevent thermocouple 4 from falling off, the smaller diameter thermocouple 4 is then passed through the small holes 228 on several sealing nuts 226 and through the special sealing rubber plugs 227. At this point, the bottom of the thermocouple 4 passes through the small holes 225 on screw 224 and 223 on the small sealing post 222. Then, the sealing nuts 226 are rotated and moved downwards on screw 224, thereby compressing the special sealing rubber plugs 227 and securing the thermocouple 4 to prevent it from falling off. The secured state is as follows. Figure 1 The displayed status was then used to test thermocouple 4.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A detachable multi-point coupler for detecting furnace temperature uniformity, characterized in that: Includes a mounting flange (1), on which a sealing mechanism (2) is provided; The sealing mechanism (2) includes an inner ring sealing assembly (21) and an outer ring sealing assembly (22). The inner ring sealing assembly (21) includes a plurality of circular holes (211) opened on the mounting flange (1). The inner walls of the plurality of circular holes (211) are fixedly connected to large sealing columns (212). The central axis of the plurality of large sealing columns (212) is provided with a large hole (213). The outer ring sealing assembly (22) includes a plurality of circular holes (221) opened on the mounting flange (1). The inner walls of the plurality of circular holes (221) are fixedly connected to small sealing columns (222). The central axis of the plurality of small sealing columns (222) is provided with a small hole (223).

2. The detachable multi-point coupler for furnace temperature uniformity detection according to claim 1, characterized in that, The mounting flange (1) is provided with several thermocouples (4), and the top of several large sealing columns (212) is fixedly connected with screws (214), and large holes (215) are opened at the central axis of several screws (214).

3. The detachable multi-point coupler for furnace temperature uniformity detection according to claim 2, characterized in that, Each of the screws (214) is threaded with a sealing nut (216), and a special sealing rubber plug (217) is provided between each of the screws (214) and the sealing nut (216).

4. The detachable multi-point coupler for furnace temperature uniformity detection according to claim 3, characterized in that, Large holes (218) are provided at the central axis of several of the sealing nuts (216).

5. A detachable multi-point coupler for furnace temperature uniformity detection according to claim 4, characterized in that, Each of the small sealing posts (222) is fixedly connected to a screw (224) at its top, and each of the screws (224) has a small hole (225) at its central axis.

6. A detachable multi-point coupler for furnace temperature uniformity detection according to claim 5, characterized in that, Each of the screws (224) has a sealing nut (226) threadedly connected to its outer wall, and a special sealing rubber plug (227) is provided between each of the sealing nuts (226) and the screws (224).

7. A detachable multi-point coupler for furnace temperature uniformity detection according to claim 6, characterized in that, Small holes (228) are provided at the central axis of several of the sealing nuts II (226).