CN219038207U - Assembled thermocouple - Google Patents

Abstract

The utility model discloses an assembled thermocouple, which comprises a junction box, a protection tube and a temperature measuring element; the protection tube comprises an upper protection tube and a lower protection tube which are connected through threads; the detachable assembly part is sleeved on the protection pipe; the assembly part is a split flange plate. The beneficial effects of the utility model are as follows: the thermocouple flange solves the problems that the thermocouple flange in the prior art is generally welded and fixed on the protection tube, so that the insertion depth can be adjusted only by other modes, and the thermocouple structure cannot be adjusted according to the field condition, so that the use is unchanged.

Description

Assembled thermocouple

Technical Field

The utility model relates to the technical field of thermocouples, in particular to an assembled thermocouple.

Background

The thermocouple device is formed by assembling a porcelain bead or corundum insulation assembled temperature measuring element or a magnesia insulation armored temperature measuring element, an outer protective sleeve, a process side connecting device and a wiring device, wherein the end part of the temperature measuring element is arranged in a measured medium, when the temperature difference exists between the measured medium and the cold end of the thermocouple, potential difference is generated at the two poles of the thermocouple, and the temperature of the measured medium is read or directly used for control by checking a corresponding thermocouple graduation meter or connecting a secondary control or indication instrument.

In the prior art, a flange is generally arranged on the protection tube for installing the thermocouple at a required position, and the interval between the flange and the bottom end of the protection tube is the insertion length. For example, chinese patent publication CN202121310136.4 discloses a high-low temperature core-pulling type temperature sensor, which comprises a flange, a reinforcing pipe, an upper protecting pipe, an outer ceramic protecting pipe, a loose joint, a first sealing component, a second sealing component, a low-cost metal thermocouple and a noble metal thermocouple, wherein the flange and the reinforcing pipe are welded into a whole, the outer ceramic protecting pipe is wrapped with asbestos and coated with fire clay and connected with the reinforcing pipe, an inner ceramic sleeve is wrapped with asbestos and coated with fire clay and penetrates into the outer ceramic protecting pipe, and the flange sleeve is connected with the loose joint and the upper protecting pipe through threads; the noble metal thermocouple and the cheap metal thermocouple penetrate into the inner ceramic sleeve and are respectively fixed and sealed through a first sealing component and a second sealing component, and finally the junction box is assembled and connected, wherein the second sealing component adopts a clamping sleeve structure.

The thermocouple flange in the prior art is generally welded and fixed on the protection tube, so that the insertion depth can be adjusted only by other modes, and the thermocouple structure cannot be adjusted according to the field condition, so that the problem of unchanged use exists.

Disclosure of Invention

The utility model aims to solve the problem that the thermocouple flange in the prior art is generally welded and fixed on a protection pipe, so that the insertion depth can only be adjusted in other modes, and the thermocouple structure cannot be adjusted according to the field condition, so that the use is unchanged, and provides an assembled thermocouple.

The aim of the utility model is achieved by the following technical scheme: an assembled thermocouple comprises a junction box, a protection tube and a temperature measuring element; the protection tube comprises an upper protection tube and a lower protection tube which are connected through threads; the detachable assembly part is sleeved on the protection pipe; the assembly part is a split flange plate;

further, the fitting includes a first mounting portion and a second mounting portion; the first installation part and the second installation part are movably connected and are matched to form a flange plate;

further, the first installation part and the second installation part are arc-shaped plates; mounting holes are formed in the first mounting part and the second mounting part;

further, plugs are arranged at two ends of the first installation part; the two ends of the second installation part are provided with sockets corresponding to the plugs;

further, a first through hole is formed in the plug; the socket is provided with a second through hole; the first through hole and the second through hole are connected through a bolt and a nut;

the further technical scheme is that the lower protection tube is of an integral drilling type structure or a steel tube type structure.

The utility model has the following advantages:

1. the upper protection tube and the lower protection tube which are in threaded connection are adopted for the protection tube, so that the protection tube is favorable for disassembly and assembly according to the needs, and the temperature measuring element in the protection tube can be overhauled and maintained at any time;

2. the detachable assembly part is sleeved on the protection pipe, the installation position of the assembly part can be adjusted according to the requirement, and the assembly part is assembled according to the field condition before installation in use;

3. the assembly part adopts a split flange plate, which is beneficial to movably mounting the assembly part at a required position so as to adjust the insertion depth.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the fitting.

Fig. 3 is a schematic diagram of the structure of the whole lower protection tube through drilling.

Fig. 4 is a schematic view of the structure of the lower protection tube steel tube.

In the figure: 1. a junction box; 2. a protective tube; 3. a temperature measuring element; 4. an upper protection tube; 5. a lower protection tube; 6. a fitting; 7. a first mounting portion; 8. a second mounting portion; 9. a plug; 10. a socket; 11. a first through hole; 12. a second through hole; 13. and (5) mounting holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1: as shown in fig. 1 to 4, an assembled thermocouple includes a junction box 1, a protection tube 2 and a temperature measuring element 3; the protection tube 2 comprises an upper protection tube 4 and a lower protection tube 5 which are in threaded connection; the detachable assembly part 6 is sleeved on the protection pipe 2; the assembly part 6 is a split flange plate; in this embodiment, the junction box 1 and the temperature measuring element 3 all adopt conventional structures, and any reasonable model structure and appropriate connection and installation mode can be selected according to the needs. The upper protection tube 4 and the lower protection tube 5 which are in threaded connection are adopted by the protection tube 2, so that the disassembly and assembly can be conveniently carried out according to the needs, and the temperature measuring element 3 in the interior can be conveniently overhauled and maintained at any time; the detachable assembly part 6 is sleeved on the protection pipe 2, the installation position of the assembly part 6 can be adjusted according to the requirement, and the assembly is carried out according to the field condition before the assembly is carried out in use; the fitting 6 adopts a split flange plate, which is beneficial to movably mounting the fitting 6 on the protection tube 2

The fitting 6 comprises a first mounting part 7 and a second mounting part 8; the first installation part 7 and the second installation part 8 are movably connected and are matched to form a flange plate; in this embodiment, the first mounting portion 7 and the second mounting portion 8 are butt-fitted to form a flange plate, and when mounting is required, the first mounting portion 7 and the second mounting portion 8 are assembled at a proper position of the protection tube 2, so that the insertion depth is adjusted in advance.

The first installation part 7 and the second installation part 8 are arc-shaped plates; mounting holes are formed in the first mounting part 7 and the second mounting part 8; in this embodiment, the arc plates can form a ring-shaped flange after being abutted, and the first installation portion 7 and the second installation portion 8 are provided with installation holes, so that the assembled flange can be installed at the position of the equipment to be detected.

Plugs 9 are arranged at two ends of the first installation part 7; the two ends of the second installation part 8 are provided with sockets 10 corresponding to the plugs 9; in this embodiment, the first installation department 7 and the second installation department 8 are favorable to improving the stability that first installation department 7 and second installation department 8 are connected through plug 9 and socket 10 butt joint, are favorable to practicing thrift the space simultaneously, are favorable to locking the flange piece on protection tube 2 axial simultaneously, avoid the landing.

The plug 9 is provided with a first through hole 11; a second through hole 12 is arranged on the socket 10; the first through hole 11 and the second through hole 12 are connected through bolts and nuts; after the first through hole 11 and the second through hole 12 are in butt joint, the stability of connection of the first connecting part and the second connecting part is improved after the connection of the first through hole 11 and the second through hole is realized through bolts and nuts.

The lower protection pipe 5 is of an integral drilling structure or a steel pipe type structure; in this embodiment, the lower protection tube 5 has a structure of integral drilling, i.e. a deep hole is formed in a whole tube, and the bottom of the lower protection tube is not drilled through, so that the temperature measuring element 3 is convenient to install in the lower protection tube; the middle of the steel pipe type structure is communicated, the temperature measuring element 3 is convenient to install, the bottom is plugged through the sealing piece, and leakage is avoided. The lower protection pipe 5 is not affected in the disassembly and assembly of the flange piece no matter being arranged into an integral drilling structure or a steel pipe structure, so that the flexibility of use is improved.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. An assembled thermocouple comprises a junction box, a protection tube and a temperature measuring element; the method is characterized in that: the protection tube comprises an upper protection tube and a lower protection tube which are connected through threads; the detachable assembly part is sleeved on the protection pipe; the assembly part is a split flange plate.

2. The fabricated thermocouple of claim 1, wherein: the assembly part comprises a first installation part and a second installation part; the first installation part and the second installation part are movably connected and are matched to form a flange plate.

3. The fabricated thermocouple of claim 2, wherein: the first installation part and the second installation part are arc-shaped plates; and mounting holes are formed in the first mounting part and the second mounting part.

4. A fabricated thermocouple as claimed in claim 3, wherein: plugs are arranged at two ends of the first installation part; and the two ends of the second installation part are provided with sockets corresponding to the plugs.

5. The fabricated thermocouple of claim 4, wherein: the plug is provided with a first through hole; the socket is provided with a second through hole; the first through hole and the second through hole are connected through bolts and nuts.

6. The fabricated thermocouple of claim 1, wherein: the lower protection pipe is of an integral drilling type structure or a steel pipe type structure.

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