Power station boiler thermocouple fixing device

Abstract

The utility model discloses a thermocouple fixing device for a power station boiler, which relates to the technical field of thermocouple fixing and comprises a boiler body, a to-be-detected pipe is fixedly arranged on one side of the boiler body, a first shell and a second shell are detachably arranged on the outer surface of the to-be-detected pipe, a heat collection block is mounted in the first shell, and a thermocouple is mounted in the second shell. A thermocouple body is movably inserted in the heat collection block, clamping pieces are oppositely arranged in the first shell in a sliding mode, the clamping pieces are attached to the outer surface of the thermocouple body, a movable rod is fixedly arranged on one side of each clamping piece, the movable rods are slidably inserted in the first shell, and the thermocouple body can be clamped by pulling the movable rods. When the thermocouple body is overhauled, the clamping pieces slide in the first shell, the limiting ring extrudes the first spring, then the thermocouple body is inserted into the inserting groove, the movable rod is loosened, the first spring is reset, and then the two clamping pieces clamp and fix the thermocouple body, so that the thermocouple body is convenient to disassemble, and the waste of maintenance time is avoided when the thermocouple body is overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouple fixing, in particular to a thermocouple fixing device for a power station boiler. Background Art

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as hot electrodes, insulating sleeve protection tubes and junction boxes, and are usually used in conjunction with display instruments, recording instruments and electronic regulators.

[0003] Existing power station boilers all use adhesives or welding to fix thermocouples on the surface of the pipeline that needs to be monitored. However, when the thermocouples are repaired and disassembled, it is inconvenient to remove the thermocouples from the monitored pipeline, which wastes a lot of maintenance time. In view of the above problems, the inventors propose a power station boiler thermocouple fixing device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that it is inconvenient to remove the thermocouple from the monitored pipeline when the thermocouple is repaired and disassembled, thus wasting a lot of repair time; the utility model aims to provide a thermocouple fixing device for a power station boiler.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a thermocouple fixing device for a power station boiler, comprising a boiler body, a tube to be detected is fixedly arranged on one side of the boiler body, a first shell and a second shell are detachably arranged on the outer surface of the tube to be detected, a heat collecting block is installed in the first shell, a thermocouple body is movably inserted in the heat collecting block, clamping parts are slidably arranged in the first shell, the clamping parts are attached to the outer surface of the thermocouple body, a movable rod is fixedly arranged on one side of the clamping part, the movable rod is slidably inserted in the first shell, a limiting ring is fixedly arranged on the outer surface of the movable rod, and the limiting ring is slidably arranged in the first shell. In the first shell, a slide groove is provided in the first shell, the limit ring is slidably arranged in the slide groove, and a first spring is fixedly connected between the slide groove and the limit ring. First, by rotating the rotating rod, the guide rod moves the ring, so that the auxiliary rod is inserted into the fixed plate, and the block is driven to shrink into the fixed shell, and the second spring is squeezed at the same time. Then, the first shell and the second shell are placed on the outer surface of the tube to be detected, and the fixed shell is placed in the groove. Then, the rotating rod is released to reset the second spring, so that the block can be inserted into the slot, and then the first shell and the second shell can be installed on the tube to be detected, so that it is convenient to disassemble and install when monitoring different pipelines;

[0006] By pulling the movable rod, the clamping member slides in the first shell, and the limiting ring squeezes the first spring, then the thermocouple body is inserted into the slot, the movable rod is loosened, the first spring is reset, and then the two clamping members clamp and fix the thermocouple body, so that it is convenient to disassemble it during maintenance and avoid wasting maintenance time. Two movable rods are set. When one of the movable rods is pulled, the clamping member drives one of the tooth plates to move, and then the tooth plate can cause the gear to rotate, thereby causing the other tooth plate to drive the other clamping member to move, so that there is no need to pull the movable rods on both sides to achieve the movement of the two clamping members, so that the staff can install the thermocouple body in two different directions.

[0007] Preferably, a rotating shaft is fixedly provided in the first shell, a gear is rotatably sleeved on the outer surface of the rotating shaft, a tooth plate is fixedly provided on one side of the clamping member, the tooth plate is meshed with the gear, the heat collecting block is attached to the outer surface of the tube to be tested, a slot is opened in the heat collecting block, and the thermocouple body is movably inserted in the slot.

[0008] Preferably, a fixed shell is fixedly provided on the bottom surface of the first shell, a groove is provided in the second shell, the fixed shell is detachably provided in the groove, a fixed plate is fixedly provided in the fixed shell, an auxiliary rod is penetrated in the fixed plate, a clamping block is fixedly provided at one end of the auxiliary rod, a second spring is fixedly connected between the fixed plate and the clamping block, a clamping groove is provided in the second shell, the clamping block is inserted in the clamping groove, a ring is fixedly provided at one end of the auxiliary rod, a rotating rod is rotatably provided in the fixed shell, and a guide rod is fixedly provided on the outer surface of the rotating rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, by pulling the movable rod, the clamping member slides in the first housing, and the limiting ring squeezes the first spring, and then the thermocouple body is inserted into the slot, the movable rod is loosened, the first spring is reset, and then the two clamping members clamp and fix the thermocouple body, so that it is convenient to disassemble when inspecting it, avoiding wasting maintenance time;

[0011] 2. In the utility model, the first shell and the second shell are placed on the outer surface of the tube to be detected, and the fixed shell is placed in the groove, and then the card block is inserted into the slot, so that the first shell and the second shell can be installed on the tube to be detected, so that when monitoring different pipelines, they can be easily disassembled and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the first housing of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the clamping member of the utility model;

[0016] Figure 4 This is a schematic diagram of the second housing structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the fixed shell of the utility model.

[0018] In the figure: 1. boiler body; 11. tube to be tested; 2. first shell; 201. slide groove; 21. heat collecting block; 211. slot; 22. thermocouple body; 23. clamping member; 24. tooth plate; 25. rotating shaft; 26. gear; 27. movable rod; 28. limiting ring; 29. ​​first spring; 3. second shell; 31. groove; 32. slot; 4. fixed shell; 41. rotating rod; 42. guide rod; 43. fixed plate; 44. auxiliary rod; 45. ring; 46. second spring; 47. block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-5As shown, the utility model provides a thermocouple fixing device for a power station boiler, comprising a boiler body 1, a tube to be detected 11 is fixedly arranged on one side of the boiler body 1, a first shell 2 and a second shell 3 are detachably arranged on the outer surface of the tube to be detected 11, a heat collecting block 21 is installed in the first shell 2, a thermocouple body 22 is movably inserted in the heat collecting block 21, a clamping member 23 is slidably arranged in the first shell 2, the clamping member 23 is attached to the outer surface of the thermocouple body 22, a movable rod 27 is fixedly arranged on one side of the clamping member 23, the movable rod 27 is slidably inserted in the first shell 2, and a limit ring 2 is fixedly sleeved on the outer surface of the movable rod 27 8. The limiting ring 28 is slidably arranged in the first shell 2. A slide groove 201 is opened in the first shell 2. The limiting ring 28 is slidably arranged in the slide groove 201. A first spring 29 is fixedly connected between the slide groove 201 and the limiting ring 28. By pulling the movable rod 27, the clamping member 23 slides in the first shell 2, and the limiting ring 28 squeezes the first spring 29. Then, the thermocouple body 22 is inserted into the slot 211, the movable rod 27 is released, the first spring 29 is reset, and then the two clamping members 23 clamp and fix the thermocouple body 22, so that it is convenient to disassemble it when it is inspected and repaired, avoiding wasting maintenance time.

[0021] A rotating shaft 25 is fixedly provided in the first shell 2, and a gear 26 is rotatably sleeved on the outer surface of the rotating shaft 25. A toothed plate 24 is fixedly provided on one side of the clamping member 23, and the toothed plate 24 meshes with the gear 26. The heat collecting block 21 is attached to the outer surface of the tube to be tested 11, and a slot 211 is opened in the heat collecting block 21, and the thermocouple body 22 is movably inserted in the slot 211.

[0022] By adopting the above technical solution, two movable rods 27 are set. When one of the movable rods 27 is pulled, the clamping member 23 drives one of the tooth plates 24 to move, and then the tooth plate 24 can prompt the gear 26 to rotate, thereby causing the other tooth plate 24 to drive the other clamping member 23 to move, and thus there is no need to pull the movable rods 27 on both sides to achieve the movement of the two clamping members 23, so that the staff can install the thermocouple body 22 in two different directions.

[0023] A fixed shell 4 is fixedly provided on the bottom surface of the first shell 2, a groove 31 is provided in the second shell 3, the fixed shell 4 is detachably provided in the groove 31, a fixed plate 43 is fixedly provided in the fixed shell 4, an auxiliary rod 44 is penetrated in the fixed plate 43, a clamping block 47 is fixedly provided at one end of the auxiliary rod 44, a second spring 46 is fixedly connected between the fixed plate 43 and the clamping block 47, a clamping groove 32 is provided in the second shell 3, the clamping block 47 is inserted in the clamping groove 32, a ring 45 is fixedly provided at one end of the auxiliary rod 44, a rotating rod 41 is rotatably provided in the fixed shell 4, and a guide rod 42 is fixedly provided on the outer surface of the rotating rod 41.

[0024] By adopting the above technical solution, by rotating the rotating rod 41, the guide rod 42 moves the ring 45, so that the auxiliary rod 44 is inserted into the fixed plate 43, and drives the block 47 to shrink into the fixed shell 4, and at the same time squeezes the second spring 46, and then the first shell 2 and the second shell 3 are placed on the outer surface of the tube to be detected 11, and the fixed shell 4 is placed in the groove 31, and then the rotating rod 41 is released to reset the second spring 46, so that the block 47 can be inserted into the slot 211, and then the first shell 2 and the second shell 3 can be installed in the tube to be detected 11, so that when monitoring different pipelines, it can be convenient for disassembly and installation.

[0025] Working principle: First, by rotating the rotating rod 41, the guide rod 42 moves the ring 45, so that the auxiliary rod 44 is inserted into the fixed plate 43, and the block 47 is driven to shrink into the fixed shell 4, and the second spring 46 is squeezed at the same time, and then the first shell 2 and the second shell 3 are placed on the outer surface of the tube to be detected 11, and the fixed shell 4 is placed in the groove 31, and then the rotating rod 41 is loosened to reset the second spring 46, so that the block 47 can be inserted into the slot 211, and then the first shell 2 and the second shell 3 can be installed in the tube to be detected 11, so that it can be easily disassembled and installed when monitoring different pipelines;

[0026] By pulling the movable rod 27, the clamping member 23 slides in the first shell 2, and the limiting ring 28 squeezes the first spring 29, then the thermocouple body 22 is inserted into the slot 211, the movable rod 27 is released, the first spring 29 is reset, and then the two clamping members 23 clamp and fix the thermocouple body 22, so that it is convenient to disassemble it during maintenance and avoid wasting maintenance time. The number of movable rods 27 is two. When one of the movable rods 27 is pulled, the clamping member 23 drives one of the tooth plates 24 to move, and then the tooth plate 24 can cause the gear 26 to rotate, thereby causing the other tooth plate 24 to drive the other clamping member 23 to move, and then there is no need to pull the movable rods 27 on both sides to realize the movement of the two clamping members 23, so that the staff can install the thermocouple body 22 in two different directions.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A thermocouple fixing device for a power station boiler, comprising a boiler body (1), characterized in that: A tube to be tested (11) is fixedly provided on one side of the boiler body (1); a first shell (2) and a second shell (3) are detachably provided on the outer surface of the tube to be tested (11); a heat collecting block (21) is installed in the first shell (2); a thermocouple body (22) is movably inserted in the heat collecting block (21); a clamping member (23) is slidably provided in the first shell (2); the clamping member (23) is attached to the outer surface of the thermocouple body (22).

2. A thermocouple fixing device for a power station boiler as claimed in claim 1, characterized in that: A movable rod (27) is fixedly provided on one side of the clamping member (23), and the movable rod (27) is slidably inserted in the first shell (2). A limiting ring (28) is fixedly sleeved on the outer surface of the movable rod (27), and the limiting ring (28) is slidably provided in the first shell (2).

3. A thermocouple fixing device for a power station boiler as claimed in claim 2, characterized in that: A sliding groove (201) is provided in the first shell (2), the limiting ring (28) is slidably arranged in the sliding groove (201), and a first spring (29) is fixedly connected between the sliding groove (201) and the limiting ring (28).

4. A thermocouple fixing device for a power station boiler as claimed in claim 1, characterized in that: A rotating shaft (25) is fixedly provided inside the first shell (2), a gear (26) is rotatably sleeved on the outer surface of the rotating shaft (25), a toothed plate (24) is fixedly provided on one side of the clamping member (23), and the toothed plate (24) is meshed with the gear (26).

5. A thermocouple fixing device for a power station boiler as claimed in claim 1, characterized in that: The heat collection block (21) is attached to the outer surface of the tube (11) to be tested, a slot (211) is provided in the heat collection block (21), and the thermocouple body (22) is movably inserted in the slot (211).

6. A thermocouple fixing device for a power station boiler as claimed in claim 1, characterized in that: A fixed shell (4) is fixedly provided on the bottom surface of the first shell (2), a groove (31) is provided in the second shell (3), and the fixed shell (4) is detachably arranged in the groove (31).

7. A thermocouple fixing device for a power station boiler as claimed in claim 6, characterized in that: A fixing plate (43) is fixedly provided in the fixing shell (4), an auxiliary rod (44) is penetrated in the fixing plate (43), a clamping block (47) is fixedly provided at one end of the auxiliary rod (44), a second spring (46) is fixedly connected between the fixing plate (43) and the clamping block (47), a clamping slot (32) is provided in the second shell (3), and the clamping block (47) is inserted into the clamping slot (32).

8. A thermocouple fixing device for a power station boiler as claimed in claim 7, characterized in that: A circular ring (45) is fixedly provided at one end of the auxiliary rod (44), a rotating rod (41) is rotatably provided in the fixed shell (4), and a guide rod (42) is fixedly provided on the outer surface of the rotating rod (41).

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