Temperature measuring device for thermocouple of boiler

Abstract

The utility model discloses a boiler thermocouple temperature measuring device, and belongs to the field of industrial boilers, the boiler thermocouple temperature measuring device comprises a junction box, a sleeve is arranged on one side of the junction box, a connecting mechanism is arranged between the sleeve and the junction box, a thermocouple wire is fixedly connected in the sleeve, and a buffer mechanism is arranged on the surface of the sleeve. Two positioning mechanisms are symmetrically distributed on the surface of the buffer mechanism, the positioning mechanisms are sleeved with a supporting frame, a fixing mechanism is arranged on the side, close to the junction box, of the supporting frame, a second bolt, a mounting hole and a movable support are arranged, and the movable support is pulled to move in the supporting frame; and then the second bolt is rotated to penetrate through the interior of the mounting hole in the surface of the support frame to enter the interior of the movable bracket to fix the movable bracket, so that the problem that the existing boiler thermocouple temperature measuring device cannot adapt to thermocouple wires and sleeves with different lengths due to the fact that the length of the protection tube cannot be adjusted is solved, and the practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of industrial boilers, and in particular to a boiler thermocouple temperature measuring device. Background Art

[0002] Industrial boilers are divided into two categories. The first is steam, used for power generation or gas supply. For example, fertilizer plants use steam to vaporize coal to synthesize fertilizer. This is a typical industrial boiler. Coal-fired industrial boilers are still the most common, while gas-fired ones are generally waste heat boilers used to recover waste heat. Circulating fluidized bed boilers are a common type of industrial boiler. Industrial boilers are important thermal power equipment, and my country leads the world in boiler production and usage.

[0003] The published patent, CN206038175U, discloses a boiler thermocouple temperature measuring device equipped with an elastic bracket. The device comprises a protective tube extending through the boiler's inner wall, insulation layer, and outer wall, and a thermocouple consisting of a junction box, a sleeve, and a thermocouple wire. The thermocouple is connected to the protective tube via a flange. A plug is provided at one end of the protective tube located within the boiler cavity. The cold end of the thermocouple wire is connected to a terminal block in the junction box, while the hot end of the thermocouple wire is inserted into the sleeve and then passed through the sleeve, leaving its end exposed. An elastic bracket is connected to the outer wall of the sleeve at the end where the hot end of the thermocouple wire resides. The elastic bracket comprises a spring that fits over the sleeve, with clamps attached to each end of the spring. The elastic bracket, composed of a spring and a clamp, is designed to be resistant to permanent deformation and have a long service life. Furthermore, the clamp and spring can accommodate a variety of sleeve and protective tube specifications, making it easy to use.

[0004] When the above device is implemented, the thermocouple wire and the sleeve are protected by the protective tube during use. However, the existing boiler thermocouple temperature measuring device cannot adjust the length of the protective tube, resulting in an inability to adapt to thermocouple wires and sleeves of different lengths. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present invention provides a boiler thermocouple temperature measuring device, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a boiler thermocouple temperature measuring device, including a junction box, a sleeve is provided on one side of the junction box, a connecting mechanism is provided between the sleeve and the junction box, a thermocouple wire is fixedly connected to the inside of the sleeve, a buffer mechanism is provided on the surface of the sleeve, two positioning mechanisms are symmetrically distributed on the surface of the buffer mechanism, a support frame is provided on the outside of the positioning mechanism, a fixing mechanism is provided on the side of the support frame close to the junction box, a length adjustment mechanism is provided inside the support frame, the length adjustment mechanism includes a movable bracket, the movable bracket is slidably connected to the support frame, the internal thread of the movable bracket is connected to the second bolt, a plurality of mounting holes are opened on the surface of the support frame, and the plurality of mounting holes are evenly distributed on the surface of the support frame, a plug is provided on the side of the movable bracket away from the support frame, and a protective mechanism is provided on the surface of the movable bracket.

[0007] As a preferred embodiment, the connecting mechanism includes an insertion block, which is fixedly connected to the sleeve, a second spring is fixedly connected to the interior of the insertion block, a positioning block is fixedly connected to one side of the second spring, and the positioning block is slidably connected to the insertion block.

[0008] By adopting the above technical solution, the junction box and the sleeve are connected by inserting the insertion block into the interior of the junction box, and then the positioning block is supported by the second spring, and the insertion block is positioned by the positioning block, so that the junction box and the sleeve can be better connected.

[0009] As a preferred embodiment, the buffer mechanism includes a moving block, which is slidably connected to the sleeve, and two first springs are fixedly connected to the surface of the moving block, and the two first springs are symmetrically distributed on the surface of the moving block. A telescopic limit rod is provided between the two first springs, and the telescopic limit rod is fixedly connected to the moving block, and a baffle is fixedly connected to the top of the telescopic limit rod.

[0010] By adopting the above technical solution, the first spring and the telescopic limit rod are fixed by the moving block, the telescopic limit rod is used to limit the baffle, the baffle is used to contact the inside of the movable bracket to buffer the shaking of the sleeve, and the first spring is used to reset the sleeve, which can better buffer the shaking of the sleeve.

[0011] As a preferred embodiment, the positioning mechanism includes a limit block, the limit block is fixedly connected to the moving block, the limit block is slidably connected to the sleeve, and the internal thread of the limit block is connected to a third bolt.

[0012] By adopting the above technical solution, the third bolt inside the limit block is rotated to make the third bolt contact the surface of the sleeve to position the limit block, and then the limit block positions the moving block, which can better position the moving block.

[0013] As a preferred embodiment, the fixing mechanism includes a first fixing block, which is fixedly connected to the sleeve, a second fixing block is provided on one side of the first fixing block, which is fixedly connected to the support frame, and a first bolt is connected to the internal thread of the first fixing block.

[0014] By adopting the above technical solution, the first fixing block and the second fixing block are connected by rotating the first bolt, and the support frame and the sleeve are connected by connecting the first fixing block and the second fixing block to position the sleeve, which can better position the sleeve.

[0015] As a preferred embodiment, the protective mechanism includes a wear-resistant layer, the wear-resistant layer is fixedly connected to the movable bracket, the side of the wear-resistant layer away from the movable bracket is fixedly connected to a corrosion-resistant layer, the wear-resistant layer is made of polyurethane, and the corrosion-resistant layer is an acid and alkali resistant coating.

[0016] By adopting the above technical solution, the wear resistance of the mobile bracket is enhanced by the wear-resistant layer, and the corrosion resistance of the mobile bracket is enhanced by the corrosion-resistant layer, so that the mobile bracket can be better protected.

[0017] As a preferred embodiment, an insertion groove is provided on the surface of the junction box, and the insertion groove is adapted to the insertion block.

[0018] By adopting the above technical solution, an insertion groove is opened on the surface of the junction box, the insertion groove is adapted to the insertion block, and the insertion groove limits the insertion block, which can better limit the insertion block.

[0019] As a preferred embodiment, a sealing strip is provided between the first fixing block and the second fixing block.

[0020] By adopting the above technical solution, a sealing strip is provided between the first fixing block and the second fixing block, and the sealing strip seals the first fixing block and the second fixing block, thereby better strengthening the sealing between the first fixing block and the second fixing block.

[0021] Beneficial effects of this application:

[0022] 1. The boiler thermocouple temperature measuring device is provided with a second bolt, a mounting hole and a movable bracket. The movable bracket is moved inside the support bracket by pulling the movable bracket, and then the second bolt is rotated to pass through the mounting hole on the surface of the support bracket and enter the interior of the movable bracket to fix the movable bracket. This avoids the problem of the existing boiler thermocouple temperature measuring device that the length of the protection tube cannot be adjusted, resulting in the inability to adapt to thermocouple wires and sleeves of different lengths, thereby improving practicality.

[0023] 2. The boiler thermocouple temperature measuring device is provided with a positioning block, a second spring and an insertion block. The insertion block is inserted into the interior of the junction box to connect the junction box and the sleeve. The positioning block is then supported by the second spring, and the insertion block is positioned by the positioning block. The positioning block is then pressed to allow the positioning block to enter the interior of the insertion block to remove the sleeve. This avoids the problem of the existing boiler thermocouple temperature measuring device that the sleeve cannot be quickly removed, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of this application;

[0025] Figure 2 This is a front structural cross-sectional view of the present application;

[0026] Figure 3 This is a schematic diagram of the buffer mechanism structure of this application;

[0027] Figure 4 For this application Figure 3 A magnified schematic diagram of the structure at A;

[0028] Figure 5 This is a schematic diagram of the protection organization structure of this application.

[0029] Numbers in the figure: 1. Junction box; 2. Fixing mechanism; 21. First bolt; 22. First fixing block; 23. Second fixing block; 3. Buffer mechanism; 31. Moving block; 32. First spring; 33. Telescopic limit rod; 34. Baffle; 4. Length adjustment mechanism; 41. Second bolt; 42. Mounting hole; 43. Moving bracket; 5. Connecting mechanism; 51. Positioning block; 52. Second spring; 53. Insertion block; 6. Protection mechanism; 61. Wear-resistant layer; 62. Corrosion-resistant layer; 7. Positioning mechanism; 71. Third bolt; 72. Limiting block; 8. Sleeve; 9. Thermocouple wire; 10. Plug; 11. Support frame; 12. Insertion slot. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0031] Reference Figure 1-Figure 4A boiler thermocouple temperature measuring device includes a junction box 1, a sleeve 8 is provided on one side of the junction box 1, and a connecting mechanism 5 is provided between the sleeve 8 and the junction box 1. The connecting mechanism 5 includes an insertion block 53, the insertion block 53 is fixedly connected to the sleeve 8, a second spring 52 is fixedly connected to the inside of the insertion block 53, a positioning block 51 is fixedly connected to one side of the second spring 52, and the positioning block 51 is slidably connected to the insertion block 53; by inserting the insertion block 53 into the interior of the junction box 1, the junction box 1 and the sleeve 8 are connected, and then the positioning block 51 is supported by the second spring 52, and then the insertion block 53 is positioned by the positioning block 51, so that the junction box 1 and the sleeve 8 can be better connected.

[0032] Reference Figure 1-Figure 3 , the inside of the sleeve 8 is fixedly connected to the thermocouple wire 9, the surface of the sleeve 8 is provided with a buffer mechanism 3, the surface of the buffer mechanism 3 is symmetrically distributed with two positioning mechanisms 7, the outer sleeve of the positioning mechanism 7 is provided with a support frame 11, the support frame 11 is provided with a fixing mechanism 2 on the side close to the junction box 1, the interior of the support frame 11 is provided with a length adjustment mechanism 4, the length adjustment mechanism 4 includes a movable bracket 43, the movable bracket 43 is slidably connected to the support frame 11, the internal thread of the movable bracket 43 is connected with a second bolt 41, the surface of the support frame 11 is provided with a plurality of mounting holes 42, and the plurality of mounting holes 42 are evenly distributed on the surface of the support frame 11, and the side of the movable bracket 43 away from the support frame 11 is provided with a plug 10, the buffer mechanism 3 The movable block 31 includes a movable block 31, which is slidably connected to the sleeve 8. Two first springs 32 are fixedly connected to the surface of the movable block 31. The two first springs 32 are symmetrically distributed on the surface of the movable block 31. A telescopic limit rod 33 is provided between the two first springs 32. The telescopic limit rod 33 is fixedly connected to the movable block 31. A baffle 34 is fixedly connected to the top of the telescopic limit rod 33. The first spring 32 and the telescopic limit rod 33 are fixed by the movable block 31, and the baffle 34 is limited by the telescopic limit rod 33. The baffle 34 then contacts the inside of the movable bracket 43 to buffer the shaking of the sleeve 8. The first spring 32 then resets the sleeve 8, which can better buffer the shaking of the sleeve 8.

[0033] Reference Figure 3 The positioning mechanism 7 includes a limit block 72, which is fixedly connected to the moving block 31 and slidably connected to the sleeve 8. The internal thread of the limit block 72 is connected to the third bolt 71; the limit block 72 is positioned by rotating the third bolt 71 inside the limit block 72 so that the third bolt 71 contacts the surface of the sleeve 8, and then the moving block 31 is positioned by the limit block 72, so that the moving block 31 can be better positioned.

[0034] Reference Figure 1-Figure 2The fixing mechanism 2 includes a first fixing block 22, which is fixedly connected to the sleeve 8. A second fixing block 23 is provided on one side of the first fixing block 22, and the second fixing block 23 is fixedly connected to the support frame 11. The internal thread of the first fixing block 22 is connected with a first bolt 21; the first fixing block 22 and the second fixing block 23 are connected by rotating the first bolt 21, and then the first fixing block 22 and the second fixing block 23 are connected to connect the support frame 11 and the sleeve 8, so that the sleeve 8 is positioned, and the sleeve 8 can be better positioned.

[0035] Reference Figure 5 A protective mechanism 6 is provided on the surface of the mobile bracket 43, and the protective mechanism 6 includes a wear-resistant layer 61, which is fixedly connected to the mobile bracket 43. A corrosion-resistant layer 62 is fixedly connected to the side of the wear-resistant layer 61 away from the mobile bracket 43. The wear-resistant layer 61 is made of polyurethane, and the corrosion-resistant layer 62 is an acid- and alkali-resistant coating. The wear resistance of the mobile bracket 43 is enhanced by the wear-resistant layer 61, and the corrosion resistance of the mobile bracket 43 is enhanced by the corrosion-resistant layer 62, so that the mobile bracket 43 can be better protected.

[0036] Reference Figure 4 The surface of the junction box 1 is provided with an insertion groove 12, which is adapted to the insertion block 53; the surface of the junction box 1 is provided with an insertion groove 12, which is adapted to the insertion block 53, and the insertion groove 12 is used to limit the insertion block 53, which can better limit the insertion block 53.

[0037] Reference Figure 1-Figure 2 A sealing strip is provided between the first fixed block 22 and the second fixed block 23; by providing a sealing strip between the first fixed block 22 and the second fixed block 23, and then using the sealing strip to seal the first fixed block 22 and the second fixed block 23, the sealing between the first fixed block 22 and the second fixed block 23 can be better enhanced.

[0038] Working principle: by pulling the movable bracket 43 to move the movable bracket 43 inside the support frame 11, and then rotating the second bolt 41 to make the second bolt 41 pass through the inside of the mounting hole 42 on the surface of the support frame 11 and enter the inside of the movable bracket 43 to fix the movable bracket 43, and then install the support frame 11 at the designated location, and then insert the insertion block 53 into the inside of the junction box 1 to connect the junction box 1 and the sleeve 8, and then support the positioning block 51 by the second spring 52, and then position the insertion block 53 by the positioning block 51, and then rotate the first bolt 21 to connect the first fixed block 22 and the second fixed block 23, and then connect the first fixed block 22 and the second fixed block 23 is connected to connect the support frame 11 with the sleeve 8 to position the sleeve 8, and then the moving block 31 fixes the first spring 32 and the telescopic limit rod 33, and then the telescopic limit rod 33 limits the baffle 34, and then the baffle 34 contacts the inside of the moving bracket 43 to buffer the shaking of the sleeve 8, and then the first spring 32 resets the sleeve 8, and then the third bolt 71 inside the rotating limit block 72 contacts the surface of the sleeve 8 to position the limit block 72, and then the limit block 72 positions the moving block 31, and then the wear-resistant layer 61 enhances the wear resistance of the mobile bracket 43, and then the corrosion-resistant layer 62 enhances the corrosion resistance of the mobile bracket 43.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A boiler thermocouple temperature measuring device, comprising a junction box (1), characterized in that: A sleeve (8) is provided on one side of the junction box (1), a connecting mechanism (5) is provided between the sleeve (8) and the junction box (1), a thermocouple wire (9) is fixedly connected inside the sleeve (8), a buffer mechanism (3) is provided on the surface of the sleeve (8), two positioning mechanisms (7) are symmetrically distributed on the surface of the buffer mechanism (3), a support frame (11) is provided on the outside of the positioning mechanism (7), a fixing mechanism (2) is provided on the side of the support frame (11) close to the junction box (1), and a length adjustment mechanism is provided inside the support frame (11). The length adjustment mechanism (4) includes a movable bracket (43), the movable bracket (43) is slidably connected to the support frame (11), the internal thread of the movable bracket (43) is connected to a second bolt (41), the surface of the support frame (11) is provided with a plurality of mounting holes (42), the plurality of mounting holes (42) are evenly distributed on the surface of the support frame (11), a plug (10) is provided on a side of the movable bracket (43) away from the support frame (11), and a protective mechanism (6) is provided on the surface of the movable bracket (43).

2. The boiler thermocouple temperature measuring device according to claim 1, characterized in that: The connecting mechanism (5) comprises an inserting block (53), the inserting block (53) being fixedly connected to the sleeve (8), a second spring (52) being fixedly connected inside the inserting block (53), a positioning block (51) being fixedly connected to one side of the second spring (52), and the positioning block (51) being slidably connected to the inserting block (53).

3. The boiler thermocouple temperature measuring device according to claim 1, characterized in that: The buffer mechanism (3) includes a moving block (31), the moving block (31) is slidably connected to the sleeve (8), two first springs (32) are fixedly connected to the surface of the moving block (31), the two first springs (32) are symmetrically distributed on the surface of the moving block (31), a telescopic limit rod (33) is provided between the two first springs (32), the telescopic limit rod (33) is fixedly connected to the moving block (31), and a baffle (34) is fixedly connected to the top of the telescopic limit rod (33).

4. The boiler thermocouple temperature measuring device according to claim 3, characterized in that: The positioning mechanism (7) comprises a limit block (72), the limit block (72) is fixedly connected to the moving block (31), the limit block (72) is slidably connected to the sleeve (8), and the inner thread of the limit block (72) is connected to a third bolt (71).

5. The boiler thermocouple temperature measuring device according to claim 1, characterized in that: The fixing mechanism (2) comprises a first fixing block (22), the first fixing block (22) being fixedly connected to the sleeve (8), a second fixing block (23) being provided on one side of the first fixing block (22), the second fixing block (23) being fixedly connected to the support frame (11), and a first bolt (21) being connected to the inner thread of the first fixing block (22).

6. The boiler thermocouple temperature measuring device according to claim 1, characterized in that: The protection mechanism (6) comprises a wear-resistant layer (61), the wear-resistant layer (61) is fixedly connected to the movable bracket (43), and a corrosion-resistant layer (62) is fixedly connected to the side of the wear-resistant layer (61) away from the movable bracket (43), the wear-resistant layer (61) is made of polyurethane, and the corrosion-resistant layer (62) is an acid- and alkali-resistant coating.

7. The boiler thermocouple temperature measuring device according to claim 2, characterized in that: An insertion slot (12) is provided on the surface of the junction box (1), and the insertion slot (12) is adapted to fit the insertion block (53).

8. The boiler thermocouple temperature measuring device according to claim 5, characterized in that: A sealing strip is provided between the first fixing block (22) and the second fixing block (23).

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