A boiler tube wall temperature monitoring device

Abstract

This utility model relates to a boiler tube wall temperature monitoring device, belonging to the field of temperature monitoring technology. It includes a pipe connected to the outside of the boiler and two mounting brackets. Each mounting bracket has a mounting frame fixed to its outer side. A slot is provided on the outer side of the mounting frame, into which a movable monitoring component for monitoring the boiler tube wall temperature is inserted. This utility model, through its movable monitoring component, not only allows operators to precisely adjust the horizontal position of the temperature monitoring element within the limiting bracket by rotating a knob, improving the targeting and accuracy of temperature monitoring, but also automatically compensates for minor gaps caused by thermal expansion and contraction or surface unevenness of the boiler tube wall, ensuring that the temperature monitoring element is always in contact with the monitored wall surface and that the tube wall temperature value at the monitored point can be clearly read. This provides convenience for operation monitoring and condition assessment, and is highly practical.

Description

Technical Field

[0001] This utility model relates to the field of temperature monitoring technology, and in particular to a boiler tube wall temperature monitoring device. Background Technology

[0002] During the operation of boilers in thermal power plants, the stability of the boiler water-cooled wall, superheater, and reheater tube wall temperature is crucial for the safe and efficient operation of the boiler. Inappropriate combustion methods can lead to excessively high or fluctuating tube wall temperatures, affecting the reliability and service life of the boiler, and even causing boiler tube rupture accidents. Therefore, it is necessary to monitor the changes in boiler tube wall temperature in real time.

[0003] Existing boiler tube wall temperature monitoring devices generally use fixed welding or rigid clips to install temperature sensors. Once installed, the sensor position is locked, making it difficult to flexibly adjust or fine-tune according to local high-temperature changes that may occur during actual boiler operation. This results in blind spots or inaccuracies in monitoring. Furthermore, boiler tubes inevitably undergo thermal expansion and contraction during operation. Fixed sensors are prone to displacement due to pipe deformation or the formation of tiny gaps between the sensor and the tube wall, causing distortion in temperature measurements. At the same time, the surface of boiler tube walls is often uneven due to ash accumulation, coking, or manufacturing and installation factors. Rigidly installed sensors cannot adapt to these irregular changes, further amplifying the measurement gap and significantly reducing the reliability and accuracy of the measurement data. Utility Model Content

[0004] To overcome the technical defects of the existing technology, this utility model provides a boiler tube wall temperature monitoring device, which has the advantages of simple structure, convenient installation and real-time monitoring of boiler tube wall temperature.

[0005] The technical solution adopted by this utility model is as follows: it includes a pipe and a fixing frame connected to the outside of the boiler. The fixing frame is set on the outside of the pipe and there are two fixing frames. Bolts are fixed between the two fixing frames. An installation frame is fixed on the outside of each fixing frame. A slot is opened on the outside of the installation frame. A movable monitoring component for monitoring the temperature of the boiler tube wall is inserted into the slot. The top and bottom of the slot are provided with fixing grooves. The slot and the two fixing grooves are connected.

[0006] Preferably, in order to quickly assemble and disassemble the movable monitoring component, a first spring is fixedly installed inside each of the fixing slots, a circular plug is fixed to the other end of the first spring, and a connecting rope is fixedly connected between the two circular plugs.

[0007] Preferably, to facilitate adjustment of the position of the temperature monitoring element, the movable monitoring component includes a square plug that is inserted into the slot. A limit frame is fixed to the other side of the square plug. A bidirectional screw is rotatably installed on one side inside the limit frame. The bidirectional screw passes through the other side of the limit frame and is fixed with a knob located outside the limit frame.

[0008] Preferably, in order to limit the slider so that it can move along the bidirectional screw instead of rotating, a slider is slidably mounted on the outside of the bidirectional screw, the slider is threadedly connected to the bidirectional screw and the slider is located inside the limiting frame.

[0009] Preferably, in order to buffer the temperature monitoring element, a mounting groove is provided on one side of the slider, a second spring is fixedly installed inside the mounting groove, and a connecting block is fixed to the other end of the second spring.

[0010] Preferably, in order to accurately monitor the temperature of the boiler tube wall, a temperature monitoring element for monitoring the boiler tube wall temperature is installed on the other side of the connecting block.

[0011] Preferably, in order to visually view the monitoring results, a temperature display panel for real-time display of the monitored temperature is fixedly installed on the other side of the slider.

[0012] Preferably, in order to ensure accurate transmission and display of temperature data, the temperature monitoring element and the temperature display panel are electrically connected.

[0013] The beneficial effects of this utility model are as follows: The movable monitoring component not only allows operators to precisely adjust the horizontal position of the temperature monitoring element within the limiting frame by rotating the knob, improving the targeting and accuracy of temperature monitoring to adapt to the needs of different boiler structures or monitoring points, but also automatically compensates for the small gaps caused by thermal expansion and contraction or uneven surface of the boiler tube wall, ensuring that the temperature monitoring element is always in contact with the monitored wall surface and can clearly read the tube wall temperature value of the monitored point, providing convenience for operation monitoring and status assessment. At the same time, the design of two fixing frames and bolts, as well as the slots on the mounting frame, allows the core movable monitoring component to be installed or disassembled through simple plugging and unplugging actions, making it more convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection of the pipe, fixing bracket, mounting bracket, plug, and connecting rope of this utility model;

[0016] Figure 3This is a schematic diagram showing the connection of the fixing frame, bolts, mounting bracket, insert, and connecting rope of this utility model;

[0017] Figure 4 This is a cross-sectional view of the connection between the fixing frame, mounting frame, insert, connecting rope and spring of this utility model;

[0018] Figure 5 This is a cross-sectional view of the movable monitoring component structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Pipe; 2. Fixing bracket; 3. Bolt; 4. Mounting bracket; 5. Movable monitoring component; 501. Square insert; 502. Limiting bracket; 503. Bidirectional screw; 504. Knob; 505. Slider; 506. Mounting groove; 507. Second spring; 508. Connecting block; 509. Temperature monitoring element; 510. Temperature display panel; 6. Slot; 7. Circular insert; 8. Connecting rope; 9. First spring; 10. Fixing groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-5 As shown, this embodiment provides a boiler tube wall temperature monitoring device, including a pipe 1 connected to the outside of the boiler and a fixing frame 2. The fixing frame 2 is located outside the pipe 1, and there are two fixing frames 2. Bolts 3 are fixedly installed between the two fixing frames 2 to enhance the stability and firmness of the entire device. An installation frame 4 is fixed to the outside of each fixing frame 2. A slot 6 is opened on the outside of the installation frame 4. A movable monitoring component 5 for monitoring the boiler tube wall temperature is inserted into the slot 6. Fixing grooves 10 are provided at the top and bottom of the slot 6. The slot 6 and the two fixing grooves 10 are interconnected. A first spring 9 is fixedly installed inside each fixing groove 10. A circular plug 7 is fixed to the other end of the first spring 9. A connecting rope 8 is fixedly connected between the two circular plugs 7. A part of the connecting rope 8 is located outside the installation frame 4 to facilitate the operator to adjust the position of the circular plug 7.

[0022] In actual use, the operator first places the two fixing brackets 2 outside the pipe 1 and fixes the positions of the two fixing brackets 2 with bolts 3. By pulling the connecting rope 8, the two circular plugs 7 are moved away from each other and the first spring 9 is compressed. After the two circular plugs 7 are completely moved into the fixing groove 10, the movable monitoring component 5 is inserted into the slot 6 to achieve quick installation of the movable monitoring component 5, which is convenient for later maintenance or replacement. Then, the connecting rope 8 is released, and the circular plugs 7 automatically snap into the movable monitoring component 5 under the elastic force of the first spring 9, preventing the movable monitoring component 5 from falling off during temperature monitoring. Using the movable monitoring component 5, the temperature monitoring position can be precisely adjusted according to actual needs. It can also automatically compensate for the small gaps caused by thermal expansion and contraction or uneven surface of the boiler tube wall, improving the accuracy and reliability of temperature monitoring. Temperature monitoring facilitates the optimization and adjustment of the boiler combustion process, making the boiler combustion more complete and reasonable, thereby improving the boiler combustion efficiency, reducing energy consumption, ensuring that the tube wall temperature does not exceed the limit, and ensuring the safe and stable operation of the boiler.

[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 5 As shown, the movable monitoring component 5 includes a square plug 501, which is inserted into the slot 6. The square plug 501 has circular grooves at its top and bottom, allowing a circular plug 7 to be inserted into these grooves, preventing the square plug 501 from falling out of the slot 6. A limit frame 502 is fixed to the other side of the square plug 501. A bidirectional screw 503 is rotatably mounted on one side of the limit frame 502. The bidirectional screw 503 passes through the other side of the limit frame 502 and is fixed with a knob 504, which is located outside the limit frame 502. A slider 505 is slidably mounted on the outside of the bidirectional screw 503. 505 is threadedly connected to the bidirectional screw 503, and the slider 505 is located inside the limit frame 502. A mounting groove 506 is provided on one side of the slider 505, and a second spring 507 is fixedly installed inside the mounting groove 506. A connecting block 508 is fixed to the other end of the second spring 507. A temperature monitoring element 509 for monitoring the boiler tube wall temperature is installed on the other side of the connecting block 508. A temperature display board 510 for real-time display of the monitored temperature is fixedly installed on the other side of the slider 505. The temperature monitoring element 509 and the temperature display board 510 are electrically connected, which makes it convenient for monitoring personnel to read the temperature monitoring data in real time and makes it more convenient to use.

[0024] In use, the operator can rotate the double-ended screw 503 by rotating the knob 504. Since the slider 505 is threadedly connected to the double-ended screw 503 and is located inside the limiting frame 502, the limiting frame 502 has a limiting effect on the slider 505. The rotation of the double-ended screw 503 can drive the two sliders 505 to move closer or further apart, thereby adjusting the horizontal position of the temperature monitoring element 509 within the limiting frame 502. This improves the targeting and accuracy of temperature monitoring to meet the needs of different boiler structures or monitoring points. When the boiler tube wall has small gaps due to thermal expansion and contraction or uneven surface, the second spring 507 can push the connecting block 508 and the temperature monitoring element 509 to automatically compensate for these gaps, ensuring that the temperature monitoring element 509 is always in contact with the monitored wall surface, improving the accuracy and reliability of temperature monitoring. At the same time, the temperature display panel 510 can display the monitored temperature in real time, making it convenient for the operator to intuitively view the monitoring results, providing convenience for operation monitoring and status assessment.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A boiler wall temperature monitoring device comprising a pipe (1) connected to the outside of a boiler and a fixing frame (2) provided outside the pipe (1) and the number of the fixing frame (2) is two, characterized in that: Bolts (3) are fixedly installed between the two fixing brackets (2). Each fixing bracket (2) is fixed with a mounting bracket (4) on its outer side. A slot (6) is provided on the outer side of the mounting bracket (4). A movable monitoring component (5) for monitoring the temperature of the boiler tube wall is inserted into the slot (6). A fixing groove (10) is provided at the top and bottom of the slot (6). The slot (6) and the two fixing grooves (10) are connected.

2. A boiler tube wall temperature monitoring apparatus according to claim 1, characterised in that: Each of the fixed slots (10) is fixedly installed with a first spring (9), and a circular plug (7) is fixed to the other end of the first spring (9). A connecting rope (8) is fixedly connected between the two circular plugs (7).

3. A boiler tube wall temperature monitoring apparatus according to claim 1, wherein: The movable monitoring component (5) includes a square plug (501) which is inserted into the slot (6). A limit frame (502) is fixed on the other side of the square plug (501). A bidirectional screw (503) is rotatably installed on one side inside the limit frame (502). The bidirectional screw (503) passes through the other side of the limit frame (502) and is fixed with a knob (504). The knob (504) is located outside the limit frame (502).

4. The boiler tube wall temperature monitoring device according to claim 3, characterized in that: A slider (505) is slidably mounted on the outside of the bidirectional screw (503). The slider (505) is threadedly connected to the bidirectional screw (503) and is located inside the limiting frame (502).

5. The boiler tube wall temperature monitoring device according to claim 4, characterized in that: The slider (505) has an installation groove (506) on one side, and a second spring (507) is fixedly installed inside the installation groove (506). A connecting block (508) is fixed to the other end of the second spring (507).

6. The boiler tube wall temperature monitoring device according to claim 5, characterized in that: A temperature monitoring element (509) for monitoring the boiler tube wall temperature is installed on the other side of the connecting block (508).

7. A boiler tube wall temperature monitoring device according to claim 6, characterized in that: A temperature display panel (510) for real-time display of the monitored temperature is fixedly installed on the other side of the slider (505).

8. A boiler tube wall temperature monitoring device according to claim 7, characterized in that: The temperature monitoring element (509) and the temperature display panel (510) are electrically connected.

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