Coal mine energy supply boiler monitoring device
By introducing monitoring devices for components such as jet pipes, regulating boxes, and swing plates into coal mine power boilers, real-time temperature and flow monitoring and regulation of the boilers can be achieved, solving the problems of water level imbalance and pulverized coal blockage, and ensuring stable boiler operation and efficient energy utilization.
Patent Information
- Application Number
- CN202422607934.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-28
AI Technical Summary
During operation, coal mine power boilers suffer from high energy consumption due to imbalances in water level, steam flow, and feedwater flow. Furthermore, humidity during coal transportation causes blockages in the transport pipelines, and existing temperature sensors cannot effectively regulate the flow.
The monitoring device consists of a jet pipe, a regulating box, a swing plate, and sensors. It monitors the boiler temperature through a temperature sensor, controls the rotation speed of the rotating plate to regulate the coal powder delivery, and uses the swing plate and spring structure to prevent coal blockage, thus realizing real-time monitoring and regulation of the boiler.
It effectively regulates the internal temperature of the boiler, avoids blockages caused by abnormal coal powder transportation, ensures stable boiler operation, and improves energy utilization efficiency.
Smart Images
Figure CN223622882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler technology, and in particular to a monitoring device for coal mine power supply boilers. Background Technology
[0002] A coal mine power boiler is a specialized device used in coal mines to provide heat energy. The boiler typically uses coal as its main fuel and is used for heating, providing power, and other needs within the mine.
[0003] The water level, steam flow, and feedwater flow rate inside the boiler are unbalanced due to the amount of water entering the boiler, the internal temperature, and the water input into the boiler, resulting in high energy consumption. The internal temperature of the boiler mainly depends on the amount of coal fed, but during coal transportation, the moisture content of the coal can cause blockages in the transportation pipeline, making it impossible to effectively control the temperature after the temperature sensor detects abnormalities. To address this, we propose a monitoring device for coal mine power supply boilers to solve the existing problems. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a monitoring device for coal mine power supply boilers.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal mine power supply boiler monitoring device, comprising a jet pipe, a boiler, an regulating box, and a swing plate. A base is provided at the lower end of the boiler, and a control box is provided at the upper end of the base. A combustion chamber is provided inside the boiler, and a jet pipe is provided at one end of the combustion chamber. A combustion-supporting fan is connected to one end of the jet pipe. A feeding pipe is installed through the upper end of the jet pipe. An regulating box is provided on one side of the boiler, and a motor is provided at the front end of the regulating box. A rotating shaft is provided at the output end of the motor. Equally spaced rotating plates are provided on the outer wall of the rotating shaft. A swing plate is provided inside the feeding pipe. A spring is provided on one side of the mounting shaft. Symmetrically distributed connecting rods are provided at both ends of the swing plate. A heat exchange plate arranged in a ring array is provided on the outer wall of the combustion chamber.
[0006] Preferably, a water inlet pipe is provided on one side of the lower end of the boiler, and a water flow sensor is installed inside the water inlet pipe. The water inlet pipe delivers water into the boiler, and the water flow sensor monitors the amount of water delivered.
[0007] Preferably, the boiler is equipped with a temperature sensor and a water level sensor to monitor the temperature and water level inside the boiler.
[0008] Preferably, a steam pipe is provided at the upper end of the boiler, and a steam flow sensor is installed inside the steam pipe. Steam inside the boiler flows upwards through the steam pipe, and the steam flow sensor monitors the steam flow.
[0009] Preferably, the rotating shaft is rotatably mounted to the mounting box via bearings, a feed pipe is installed through the upper end of the regulating box, and the upper end of the feeding pipe is installed through the lower end of the regulating box. The rotating shaft is rotatably supported inside the regulating box, and the feed pipe transports pulverized coal into the regulating box.
[0010] Preferably, a mounting shaft is rotatably installed inside the feeding tube and runs through the swing plate. The spring is inclined, and limit blocks are provided at both ends of the spring. The limit blocks are distributed at the connection between the swing plate and the feeding tube. The swing plate is rotatably supported inside the feeding tube by the mounting shaft, and the limit blocks fix the spring and provide elastic support to one end of the swing plate.
[0011] Preferably, each of the connecting rods is provided with a rubber head at one end. The rubber head allows the connecting rod to make flexible contact with the feeding tube, reducing wear on the feeding tube and impact noise.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses a temperature sensor to detect the internal temperature of the boiler, controls the rotation speed of the rotating plate, speeds up or slows down the transfer of coal in the regulating box, and thus regulates the amount of pulverized coal conveyed, thereby controlling the internal temperature of the combustion chamber. The pulverized coal is transferred by the rotating plate. When the rotating plate passes through the swing plate, it squeezes the swing plate, which in turn squeezes the spring. After passing through the swing plate, the spring pushes the swing plate to shake due to its own elasticity, which drives the connecting rod to strike the feeding pipe. The feeding pipe vibrates, and the coal adhering to the feeding pipe is detached, avoiding blockage of the coal feeding pipe. While regulating the internal temperature of the boiler, it also avoids the problem of the boiler being unable to operate stably due to abnormal pulverized coal conveying. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main sectional three-dimensional structure of this utility model;
[0015] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;
[0016] Figure 3 This is a three-dimensional cross-sectional view of the regulating box of this utility model;
[0017] Figure 4 This is a three-dimensional sectional view of the mounting shaft of this utility model.
[0018] Reference numerals: 1. Combustion fan; 2. Spray pipe; 3. Feed pipe; 4. Control box; 5. Base; 6. Boiler; 7. Temperature sensor; 8. Heat exchange plate; 9. Combustion chamber; 10. Regulating box; 11. Feed pipe; 12. Steam pipe; 13. Steam flow sensor; 14. Water inlet pipe; 15. Water flow sensor; 16. Motor; 17. Rotating shaft; 18. Rotating plate; 19. Mounting shaft; 20. Swing plate; 21. Limit block; 22. Spring; 23. Connecting rod; 24. Rubber head. Detailed Implementation
[0019] 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.
[0020] like Figures 1-4 As shown, the present invention proposes a coal mine power supply boiler monitoring device, including a jet pipe 2, a boiler 6, a regulating box 10, and a swing plate 20. A base 5 is provided at the lower end of the boiler 6, and a control box 4 is provided at the upper end of the base 5. A combustion chamber 9 is provided inside the boiler 6, and a jet pipe 2 is provided at one end of the combustion chamber 9. A combustion fan 1 is connected to one end of the jet pipe 2. A feeding pipe 3 is installed through the upper end of the jet pipe 2. A water inlet pipe 14 is provided on one side of the lower end of the boiler 6. A water flow sensor 15 is provided inside the water inlet pipe 14. A temperature sensor 7 and a liquid level sensor are provided inside the boiler 6. A steam pipe 12 is provided at the upper end of the boiler 6. A steam flow sensor 13 is provided inside the steam pipe 12. A heat exchange plate 8 arranged in a ring array is provided on the outer wall of the combustion chamber 9.
[0021] Based on the implementation steps of Example 1: the feeding pipe 3 conveys coal into the spray pipe 2, the combustion fan 1 conveys combustion gas, and the coal falling from above is conveyed into the combustion chamber 9. During combustion, after internal combustion, the coal is heated by the heat exchange plate 8 and the water inside the boiler 6. Steam is output through the steam pipe 12. The steam flow sensor 13 detects the amount of steam delivered, and the water inlet pipe 14 replenishes the lost water. The water flow sensor 15 detects the water flow, and the water level sensor detects the water level. The temperature sensor 7 detects the temperature inside the boiler 6. The control box 4 collects and analyzes various parameters, monitors key parameters such as the boiler 6 water level, steam flow, and feedwater flow in real time, and adjusts them according to the analysis results to achieve precise control of the boiler 6 water level. The monitoring center displays the boiler 6 water level, steam flow, feedwater flow, and other parameter information in real time, and issues an alarm when the water level is abnormal.
[0022] like Figures 1-4As shown, compared with Embodiment 1, the coal mine power supply boiler monitoring device proposed in this utility model further includes: an adjustment box 10 is provided on one side of the boiler 6, a motor 16 is provided at the front end of the adjustment box 10, a rotating shaft 17 is provided at the output end of the motor 16, the rotating shaft 17 is rotatably installed with the mounting box through a bearing, rotating plates 18 are provided on the outer wall of the rotating shaft 17 at equal intervals, a feed pipe 11 is installed through the upper end of the adjustment box 10, a feeding pipe 3 is installed through the upper end of the adjustment box 10, a swing plate 20 is provided inside the feeding pipe 3, a mounting shaft 19 is rotatably installed inside the feeding pipe 3, a spring 22 is provided on one side of the swing plate 20, the spring 22 is inclined, a limit block 21 is provided at both ends of the spring 22, the limit block 21 is distributed and connected to the swing plate 20 and the feeding pipe 3, a symmetrically distributed connecting rod 23 is provided at both ends of the swing plate 20, and a rubber head 24 is provided at one end of each connecting rod 23.
[0023] In this embodiment, when the temperature inside the boiler 6 changes, the motor 16 drives the rotating shaft 17 to rotate the rotating plate 18 faster, outputting the coal powder flowing out from above. The coal powder is then transferred to the feeding pipe 3 for discharge, increasing the coal powder conveying capacity and heating the inside of the boiler 6. Similarly, the temperature of the boiler 6 is reduced, and the rotation speed of the rotating plate 18 is controlled to decrease.
[0024] When the rotating plate 18 rotates through the feeding pipe 3, it strikes and pushes the swing plate 20, which is rotatably installed in the feeding pipe 3 and whose upper section is located inside the lower end of the regulating box 10. The spring 22 is compressed under force. When the rotating plate 18 passes through, the spring 22 drives the swing plate 20 to shake through its own elasticity, which in turn drives the connecting rod 23 to strike and vibrate the feeding pipe 3, thus avoiding the problem of coal caking or even blockage. It is worth noting that the feeding pipe 3 is connected to the coal powder silo, and the feeding pipe 3 is equipped with the same structure as the coal powder anti-blockage device inside the feeding pipe 3, which improves the smoothness of coal powder transportation and ensures the effective monitoring and control of coal transportation in the coal mine power supply boiler 6 during use.
[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A monitoring device for a coal mine power supply boiler, comprising a jet pipe (2), a boiler (6), a regulating box (10), and a swing plate (20), characterized in that: The boiler (6) is provided with a base (5) at its lower end and a control box (4) at its upper end. The boiler (6) is provided with a combustion chamber (9) inside. One end of the combustion chamber (9) is provided with a jet pipe (2). One end of the jet pipe (2) is connected to a combustion fan (1). A feeding pipe (3) is installed through the upper end of the jet pipe (2). An adjustment box (10) is provided on one side of the boiler (6). A motor (16) is provided at the front end of the adjustment box (10). A rotating shaft (17) is provided at the output end of the motor (16). Rotating plates (18) are provided on the outer wall of the rotating shaft (17) at equal intervals. A swing plate (20) is provided inside the feeding pipe (3). A spring (22) is provided on one side of the swing plate (20). A connecting rod (23) is provided on both ends of the swing plate (20). A heat exchange plate (8) is arranged in a ring array on the outer wall of the combustion chamber (9).
2. The monitoring device for coal mine power supply boilers according to claim 1, characterized in that: A water inlet pipe (14) is provided on one side of the lower end of the boiler (6), and a water flow sensor (15) is provided inside the water inlet pipe (14).
3. The monitoring device for coal mine power supply boilers according to claim 1, characterized in that: The boiler (6) is equipped with a temperature sensor (7) and a liquid level sensor.
4. The monitoring device for coal mine power supply boilers according to claim 1, characterized in that: The upper end of the boiler (6) is provided with a steam pipe (12), and a steam flow sensor (13) is provided inside the steam pipe (12).
5. A coal mine power supply boiler monitoring device according to claim 1, characterized in that: The rotating shaft (17) is rotatably mounted to the mounting box via a bearing. The upper end of the regulating box (10) is fitted with a feed pipe (11), and the upper end of the feeding pipe (3) is fitted inside the lower end of the regulating box (10).
6. A monitoring device for coal mine power supply boilers according to claim 1, characterized in that: The swing plate (20) has a mounting shaft (19) that is rotatably installed inside the feeding pipe (3). The spring (22) is inclined and has limit blocks (21) at both ends. The limit blocks (21) are distributed between the swing plate (20) and the feeding pipe (3).
7. A coal mine power supply boiler monitoring device according to claim 1, characterized in that: Each of the connecting rods (23) is provided with a rubber head (24) at one end.