Intelligent fuel supply adjusting device for thermal power plant

Abstract

The invention relates to the field of thermal power plants, and discloses a thermal power plant intelligent fuel supply adjusting device which comprises a box body, a pulverized coal storage box is fixedly connected to the bottom of the inner wall of the box body, a guide pipe is arranged in the pulverized coal storage box, and a second servo motor is fixedly connected to one side of the guide pipe. A first rotating shaft is fixedly connected to the output end of the second servo motor, a spiral plate is fixedly connected to the outer wall of the first rotating shaft, an air heater is fixedly connected to one side of the box body, an air pipe is fixedly connected to the side, penetrating through the box body, of the output end of the air heater, and a power station boiler is connected to the end, away from the air heater, of the air pipe. A spiral plate is driven to rotate through operation of a second servo motor, pulverized coal in a pulverized coal storage box is conveyed into an air pipe, the pulverized coal in the air pipe is conveyed into a combustion chamber through operation of an air heater, the pulverized coal is prevented from flying around through arrangement of a guide pipe and the air pipe, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power plants, in particular to an intelligent fuel supply regulating device for a thermal power plant. Background Art

[0002] A thermal power plant, also known as a thermal power plant, is a factory that uses combustibles as fuel to produce electricity. Its basic production process is: when the fuel burns, it heats water to generate steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the turbine to rotate, converting the thermal energy into mechanical energy. The turbine then drives the generator to rotate, converting the mechanical energy into electrical energy. It generates electricity by utilizing the pressure drop in the process of high-temperature, high-pressure steam or gas passing through a turbine to become low-pressure air or condensed water.

[0003] When thermal power plants are in production, they use boilers to convert the chemical energy of fuel into thermal energy. Coal is usually used as the main fuel. Traditional fuel supply is usually transmitted using conveyor belts, but it will cause coal powder to fly during transportation, thus affecting the operation of thermal power plant equipment and reducing the service life of the equipment. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an intelligent fuel supply regulating device for a thermal power plant to solve the problem that traditional fuel supply usually uses a conveyor belt for transmission, but it causes coal powder to fly during transportation, thereby affecting the operation of thermal power plant equipment and reducing the service life of the equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent fuel supply and regulation device for a thermal power plant, comprising a box body, a coal powder storage box is fixedly connected to the bottom of the inner wall of the box body, a guide tube is arranged inside the coal powder storage box, a second servo motor is fixedly connected to one side of the guide tube, a first rotating shaft is fixedly connected to the output end of the second servo motor, a spiral plate is fixedly connected to the outer wall of the first rotating shaft, a hot air blower is fixedly connected to one side of the box body, the output end of the hot air blower passes through one side of the box body and is fixedly connected to an air duct, the end of the air duct away from the hot air blower is connected to a power station boiler, a first opening is arranged on one side of the spiral plate, the first opening is located inside the coal powder storage box, a second opening is arranged on the top of the spiral plate passing through the middle of the coal powder storage box and the bottom of the air duct, and a filtering structure is arranged obliquely inside the box body.

[0006] Preferably, the power station boiler includes a boiler, a combustion chamber is arranged in the middle of the boiler, the inlet of the combustion chamber is connected to the end of the air duct away from the hot air blower, a pressure sensor is arranged on one side of the boiler, a temperature sensor is arranged on one side of the boiler, and a support column is evenly and fixedly connected to the bottom of the boiler, and the pressure sensor and the temperature sensor are electrically connected to the hot air blower and the second servo motor.

[0007] Preferably, the filtering structure includes a vibrator, one side of the vibrator is fixedly connected to one side of the box, the output end of the vibrator passes through one side of the box and is provided with a guide plate, both sides of the guide plate are obliquely arranged on both sides of the inner wall of the box, the bottom of the guide plate is symmetrically fixedly connected with a filter plate, the filter plate is located above the inlet of the coal powder storage box, and one side of the filter plate is connected to the collection box by a snap.

[0008] Preferably, a crushing box is fixedly connected to the inner wall of the box, a first servo motor is fixedly connected to one side of the box, an output end of the first servo motor passes through the box and is fixedly connected to a second rotating shaft on one side of the crushing box, and crushing teeth are evenly fixedly connected to the outer wall of the second rotating shaft.

[0009] Preferably, filter holes are evenly arranged at the bottom of the crushing box, a feed hopper is fixedly connected to the entrance of the crushing box, the top of the feed hopper passes through one side of the box body and is located at the top of the box body, and the crushing box is located above the guide plate.

[0010] Preferably, the middle portion of the guide plate is located above the air duct, the air duct is located in the middle portion of the coal powder storage box, and the coal powder storage box is in a concave shape.

[0011] Preferably, an ultrasonic sensor is provided inside the air duct, and the ultrasonic sensor is electrically connected to the hot air blower and the second servo motor.

[0012] Preferably, an inspection door is symmetrically provided on one side of the box body, and support seats are evenly provided on the bottom of the box body.

[0013] Working principle: when in use, the coal blocks are fed into the interior, and then the operation of the first servo motor drives the second shaft to rotate, thereby driving the crushing teeth to operate and crush them. Through the setting of the filter holes, when the coal blocks are crushed into coal powder, they pass through the filter holes and fall into the upper surface of the guide plate, and then through the operation of the vibrator, the guide plate is driven to vibrate, so that the coal powder on its surface slides to the surface of the filter plate, and the vibration of the guide plate drives the filter plate to vibrate, thereby screening the coal powder on the surface of the filter plate, so that the coal powder passes through the filter plate into the interior of the coal powder storage box, and the larger particles of coal powder fall into the collection box on one side of the filter plate under the action of vibration and gravity, so that they are collected, and then stored in the coal powder storage box, and the operation of the second servo motor drives the first shaft to rotate, thereby driving the spiral plate to rotate, so that the coal powder inside the coal powder storage box enters the interior of the guide pipe through the first opening, and is output upward through the second opening The hot air is sent to the inside of the air duct, and the hot air is blown out by the operation of the hot air blower, so that the pulverized coal in the air duct is transported to the inside of the combustion chamber and the pulverized coal is prevented from flying around. Then, the pulverized coal transported into the combustion chamber is burned through the operation of the combustion chamber to provide heat for the boiler. The pressure inside the boiler is detected in real time through the operation of the pressure sensor, and the temperature inside the boiler is detected in real time through the operation of the temperature sensor. When the pressure and temperature inside the boiler reach the corresponding thresholds, the operation efficiency of the hot air blower and the second servo motor is controlled, so that the fuel supply can be adjusted in real time according to the temperature and pressure inside the boiler, reducing manual operation and realizing automatic fuel supply. At the same time, the concentration of pulverized coal in the air duct is monitored in real time through the operation of the ultrasonic sensor, so that the operation speed of the hot air blower and the second servo motor can be adjusted in real time. When the pulverized coal is transported, the ratio of the pulverized coal to air can be adjusted in real time, thereby further enhancing the fuel supply quality and efficiency.

[0014] The present invention provides an intelligent fuel supply regulating device for a thermal power plant. It has the following beneficial effects: 1. The present invention drives the spiral plate to rotate through the operation of the second servo motor, so that the coal powder inside the coal powder storage box is transported to the inside of the air duct, and the coal powder inside the air duct is transported to the inside of the combustion chamber through the operation of the hot air blower, thereby completing the transportation. The setting of the guide pipe and the air duct prevents the coal powder from flying around, thereby increasing the service life of the equipment, thereby solving the problem of traditional fuel supply, which usually uses a conveyor belt for transmission, but causes coal powder to fly during transportation, thereby affecting the operation of thermal power plant equipment and reducing the service life of the equipment.

[0015] 2. The present invention detects the pressure and temperature inside the boiler in real time through the operation of the pressure sensor and the temperature sensor, so that when the pressure and temperature inside the boiler reach the corresponding thresholds, the operating efficiency of the hot air blower and the second servo motor can be controlled, so that the fuel supply can be adjusted in real time according to the temperature and pressure inside the boiler, reducing manual operation and realizing automatic fuel supply, so that the device can realize intelligent control and enhance the efficiency of fuel supply.

[0016] 3. The present invention monitors the concentration of coal powder inside the air duct in real time through the operation of the ultrasonic sensor, so that when the hot air blower and the second servo motor are conveying coal powder, the ratio of coal powder to air can be adjusted in real time, thereby further enhancing the quality and efficiency of fuel supply, thereby further enhancing the intelligence and practicality of the device.

[0017] 4. The present invention drives the guide plate and the filter plate to vibrate through the operation of the vibrator, thereby screening the coal powder on the surface of the filter plate, allowing the coal powder to pass through the filter plate into the interior of the coal powder storage box, and the larger particles of coal powder fall into the collection box on one side of the filter plate under the action of vibration and gravity, so that they are collected, preventing the larger particles of coal powder from affecting the combustion efficiency of the combustion chamber, thereby correspondingly improving the quality and efficiency of the fuel supply and enhancing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the box of the present invention; Figure 3 It is a schematic diagram of the internal structure of the air duct of the present invention; Figure 4 It is a structural schematic diagram of the guide pipe of the present invention; Figure 5 It is a schematic diagram of the internal structure of the crushing box of the present invention; Figure 6 It is a structural schematic diagram of the guide plate of the present invention.

[0019] Among them, 1. box body; 2. inspection door; 3. support seat; 4. air duct; 5. feed hopper; 6. first servo motor; 7. vibrator; 8. boiler; 9. combustion chamber; 10. support column; 11. pressure sensor; 12. temperature sensor; 13. hot air blower; 14. second servo motor; 15. crushing box; 16. filter hole; 17. guide plate; 18. filter plate; 19. collection box; 20. coal powder storage box; 21. ultrasonic sensor; 22. guide tube; 23. first opening; 24. second opening; 25. spiral plate; 26. first rotating shaft; 27. second rotating shaft; 28. crushing teeth. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] Please refer to the attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides an intelligent fuel supply regulating device for a thermal power plant, comprising a box body 1, a pulverized coal storage box 20 is fixedly connected to the bottom of the inner wall of the box body 1, a guide tube 22 is arranged inside the pulverized coal storage box 20, a second servo motor 14 is fixedly connected to one side of the guide tube 22, a first rotating shaft 26 is fixedly connected to the output end of the second servo motor 14, a spiral plate 25 is fixedly connected to the outer wall of the first rotating shaft 26, a hot air blower 13 is fixedly connected to one side of the box body 1, an output end of the hot air blower 13 passes through a side of the box body 1 and is fixedly connected to an air duct 4, an end of the air duct 4 away from the hot air blower 13 is connected to a power station boiler, a first opening 23 is arranged on one side of the spiral plate 25, the first opening 23 is located inside the pulverized coal storage box 20, a second opening 24 is arranged on the top of the spiral plate 25 passing through the middle of the pulverized coal storage box 20 and the bottom of the air duct 4, and a filtering structure is arranged obliquely inside the box body 1.

[0022] Specifically, the coal powder is stored in the coal powder storage box 20, and the operation of the second servo motor 14 drives the first rotating shaft 26 to rotate, thereby driving the spiral plate 25 to rotate, so that the coal powder inside the coal powder storage box 20 enters the guide tube 22 through the first opening 23, and is transported to the inside of the air duct 4 through the second opening 24 upward, and the hot air is blown out by the operation of the hot air blower 13, so that the coal powder inside the air duct 4 is transported to the inside of the combustion chamber 9, thereby completing the transportation; and through the setting of the guide tube 22 and the air duct 4, the coal powder is prevented from flying around, and the service life of the equipment is increased, thereby solving the problem that the traditional fuel supply is usually transported by a conveyor belt, but it causes the coal powder to fly during transportation, thereby affecting the operation of the thermal power plant equipment and reducing the service life of the equipment. And through the setting of the hot air blower 13, when the coal powder is transported, the coal powder is preheated accordingly, thereby increasing its combustion efficiency, thereby enhancing the fuel supply efficiency of the equipment and enhancing practicality.

[0023] Please refer to the attached Figure 1The power station boiler includes a boiler 8, a combustion chamber 9 is arranged in the middle of the boiler 8, the inlet of the combustion chamber 9 is connected to the end of the air duct 4 away from the hot air blower 13, a pressure sensor 11 is arranged on one side of the boiler 8, a temperature sensor 12 is arranged on one side of the boiler 8, and a support column 10 is evenly and fixedly connected to the bottom of the boiler 8. The pressure sensor 11, the temperature sensor 12 are electrically connected to the hot air blower 13 and the second servo motor 14.

[0024] Specifically, through the operation of the combustion chamber 9, the pulverized coal transported into the combustion chamber is burned to provide heat for the boiler 8. Through the operation of the pressure sensor 11, the pressure inside the boiler 8 is detected in real time. Through the operation of the temperature sensor 12, the temperature inside the boiler 8 is detected in real time. When the pressure and temperature inside the boiler 8 reach the corresponding threshold values, the operating efficiency of the hot air blower 13 and the second servo motor 14 is controlled. Therefore, the fuel supply can be adjusted in real time according to the temperature and pressure inside the boiler 8, reducing manual operation and realizing automatic fuel supply, so that the device realizes intelligent control and enhances the efficiency of fuel supply.

[0025] Please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 6 The filtering structure includes a vibrator 7, one side of the vibrator 7 is fixedly connected to one side of the box body 1, the output end of the vibrator 7 passes through one side of the box body 1 and is provided with a guide plate 17, both sides of the guide plate 17 are obliquely arranged on both sides of the inner wall of the box body 1, and a filter plate 18 is symmetrically fixedly connected to the bottom of the guide plate 17, and the filter plate 18 is located above the inlet of the coal powder storage box 20, and one side of the filter plate 18 is connected to the collection box 19 through a snap.

[0026] Specifically, the operation of the vibrator 7 drives the guide plate 17 to vibrate, so that the coal powder on its surface slides to the surface of the filter plate 18. The vibration of the guide plate 17 drives the filter plate 18 to vibrate, so that the coal powder on the surface of the filter plate 18 is screened, and the coal powder passes through the filter plate 18 into the coal powder storage box 20. Under the action of vibration and gravity, larger particles of coal powder fall into the collection box 19 on one side of the filter plate 18, so that they are collected, preventing larger particles of coal powder from affecting the combustion efficiency of the combustion chamber 9, thereby correspondingly improving the quality and efficiency of fuel supply and enhancing the practicability of the device.

[0027] Please refer to the attached Figure 1 -Attached Figure 6The inner wall of the box body 1 is fixedly connected with a crushing box 15, and one side of the box body 1 is fixedly connected with a first servo motor 6. The output end of the first servo motor 6 passes through the box body 1 and is fixedly connected with a second rotating shaft 27 on one side of the crushing box 15, and the outer wall of the second rotating shaft 27 is evenly fixedly connected with crushing teeth 28; filter holes 16 are evenly arranged at the bottom of the crushing box 15, and a feed hopper 5 is fixedly connected at the entrance of the crushing box 15. The top of the feed hopper 5 passes through one side of the box body 1 and is located at the top of the box body 1, and the crushing box 15 is located above the guide plate 17; the middle part of the guide plate 17 is located above the air duct 4, and the air duct 4 is located in the middle of the coal powder storage box 20, and the coal powder storage box 20 is concave; an ultrasonic sensor 21 is arranged inside the air duct 4, and the ultrasonic sensor 21 is electrically connected to the hot air blower 13 and the second servo motor 14; an inspection door 2 is symmetrically arranged on one side of the box body 1, and a support seat 3 is evenly arranged at the bottom of the box body 1.

[0028] Specifically, the operation of the first servo motor 6 drives the second rotating shaft 27 to rotate, thereby driving the crushing teeth 28 to operate, so that after the coal blocks pass through the feed hopper 5 and enter the crushing box 15, they are crushed, and the crushing of the coal blocks is completed. Through the operation of the ultrasonic sensor 21, the concentration of the coal powder inside the air duct 4 is monitored in real time, so that the operating speed of the hot air blower 13 and the second servo motor 14 can be adjusted in real time, so that when the coal powder is transported, the ratio of the coal powder to the air can be adjusted in real time, so as to further enhance the quality and efficiency of the fuel supply, thereby further enhancing the intelligence and practicality of the device. Through the setting of the inspection door 2, the internal equipment can be maintained, and the collection box 19 can be taken out regularly for replacement.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent fuel supply regulating device for a thermal power plant, comprising a housing (1), characterized in that: A coal powder storage box (20) is fixedly connected to the bottom of the inner wall of the box body (1), a guide tube (22) is arranged inside the coal powder storage box (20), a second servo motor (14) is fixedly connected to one side of the guide tube (22), an output end of the second servo motor (14) is fixedly connected to a first rotating shaft (26), an outer wall of the first rotating shaft (26) is fixedly connected to a spiral plate (25), a hot air blower (13) is fixedly connected to one side of the box body (1), an output end of the hot air blower (13) passes through one side of the box body (1) and is fixedly connected to an air duct (4), an end of the air duct (4) away from the hot air blower (13) is connected to a power station boiler, a first opening (23) is arranged on one side of the spiral plate (25), the first opening (23) is located inside the coal powder storage box (20), a second opening (24) is arranged at the top of the spiral plate (25) passing through the middle of the coal powder storage box (20) and the bottom of the air duct (4), and a filtering structure is arranged obliquely inside the box body (1).

2. The intelligent fuel supply regulating device for a thermal power plant according to claim 1 is characterized in that: The power station boiler comprises a boiler (8), a combustion chamber (9) is arranged in the middle of the boiler (8), an inlet of the combustion chamber (9) is connected to an end of the air duct (4) away from the hot air blower (13), a pressure sensor (11) is arranged on one side of the boiler (8), a temperature sensor (12) is arranged on one side of the boiler (8), a support column (10) is evenly and fixedly connected to the bottom of the boiler (8), and the pressure sensor (11) and the temperature sensor (12) are electrically connected to the hot air blower (13) and a second servo motor (14).

3. The intelligent fuel supply regulating device for a thermal power plant according to claim 1, characterized in that: The filtering structure comprises a vibrator (7), one side of the vibrator (7) is fixedly connected to one side of the box (1), an output end of the vibrator (7) passes through one side of the box (1) and is provided with a guide plate (17), two sides of the guide plate (17) are obliquely arranged on two sides of the inner wall of the box (1), a filter plate (18) is symmetrically fixedly connected to the bottom of the guide plate (17), the filter plate (18) is located above the inlet of the coal powder storage box (20), and one side of the filter plate (18) is connected to a collection box (19) via a buckle.

4. The intelligent fuel supply regulating device for a thermal power plant according to claim 1, characterized in that: A crushing box (15) is fixedly connected to the inner wall of the box body (1), a first servo motor (6) is fixedly connected to one side of the box body (1), an output end of the first servo motor (6) passes through the box body (1) and is fixedly connected to a second rotating shaft (27) on one side of the crushing box (15), and crushing teeth (28) are evenly fixedly connected to the outer wall of the second rotating shaft (27).

5. The intelligent fuel supply regulating device for a thermal power plant according to claim 4 is characterized in that: The bottom of the crushing box (15) is evenly provided with filter holes (16); a feed hopper (5) is fixedly connected to the entrance of the crushing box (15); the top of the feed hopper (5) penetrates one side of the box body (1) and is located at the top of the box body (1); the crushing box (15) is located above the guide plate (17).

6. The intelligent fuel supply regulating device for a thermal power plant according to claim 3 is characterized in that: The middle portion of the guide plate (17) is located above the air duct (4), the air duct (4) is located in the middle portion of the coal powder storage box (20), and the coal powder storage box (20) is in a concave shape.

7. The intelligent fuel supply regulating device for a thermal power plant according to claim 1, characterized in that: An ultrasonic sensor (21) is disposed inside the air duct (4), and the ultrasonic sensor (21) is electrically connected to the hot air blower (13) and the second servo motor (14).

8. The intelligent fuel supply regulating device for a thermal power plant according to claim 1 is characterized in that: An inspection door (2) is symmetrically arranged on one side of the box body (1), and support seats (3) are evenly arranged on the bottom of the box body (1).

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