Automatic fan control system

Abstract

The invention relates to an automatic fan control system which comprises an oil fume fan for sucking and discharging oil fume generated by a cooking bench, and further comprises an air supplementing fan, a pressure difference sensor, a purifier and oil fume control equipment, the air supplementing fan is arranged outdoors, the inlet end of the purifier is connected with a pipeline, and the cooking bench, the purifier and the oil fume fan are connected through the pipeline; a methane sensor is arranged on one side of the cooking bench; a first oil smoke sensor and a temperature sensor are arranged on a pipeline on the inlet side of the purifier, a second oil smoke sensor is arranged on a pipeline on the outlet side of the oil smoke fan, and the oil smoke control equipment is connected with the cooking bench, the purifier, the oil smoke fan, the first oil smoke sensor, the temperature sensor, the second oil smoke sensor, the air supplementing fan, the pressure difference sensor and the methane sensor. The lampblack control equipment is in signal connection with the terminal. According to the automatic control system for the fan, the rotating speed and the power of the fan can be automatically adjusted according to real-time oil smoke concentration detection data, energy-saving operation is achieved, and meanwhile it is ensured that oil smoke is effectively removed.

Description

Technical Field

[0001] The invention relates to the field of oil fume exhaust, and in particular to an automatic fan control system. Background Art

[0002] Commercial fume exhaust systems are usually divided into two parts: one is the air supply in the kitchen work area, and the other is the kitchen fume exhaust. In the air supply section, the air volume of the air supply fan is usually required to be more than 70% of the fume extraction fan. In most usage scenarios, the air supply fan is running at full load, which causes a huge waste of resources. In the fume exhaust section, the fume fan is usually designed according to the number and length of the stoves to design the required maximum air volume, so the fan power will be selected according to the maximum air volume and power. When working in the kitchen, no matter how many stoves are turned on or whether the fume is large or small, the fan will run at maximum power, which also causes a huge waste of resources. At present, the most common energy-saving method for fume exhaust systems on the market is to adjust the operation according to the number of stoves turned on. This method fixes the operating frequency according to the number of stoves turned on, but this method still makes the fan run at high load when the stoves are fully turned on or a large number of them are turned on, and the energy-saving effect is limited. In view of this, we propose a fan automatic control system. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic fan control system to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an automatic fan control system, including an oil fume fan for sucking and discharging oil fume generated by a stove, and also including an air supply fan, a pressure difference sensor, a purifier and an oil fume control device, the air supply fan is arranged outdoors, the inlet end of the purifier is connected to a pipeline, and the stove, the purifier and the oil fume fan are connected through a pipeline, and a methane sensor is arranged on one side of the stove; An oil fume sensor 1 and a temperature sensor are arranged on the pipe on the inlet side of the purifier, an oil fume sensor 2 is arranged on the pipe on the outlet side of the oil fume fan, an oil fume control device is respectively connected to the stove, the purifier, the oil fume fan, the oil fume sensor 1, the temperature sensor, the oil fume sensor 2, the air supply fan, the pressure difference sensor and the methane sensor, and the oil fume control device is connected to the terminal signal.

[0004] Preferably, the purifier includes a filter box and a mixing box, the mixing box is fixed on the base, a vertical frame and a collecting box are fixed on the base, the bottom of the filter box is connected to the collecting box through a sewage pipe, and the filter box is fixed on the vertical frame, a cross brace is fixed on the upper end of the vertical frame, and a decontaminant box and a diluent tank are fixed on the cross brace.

[0005] Preferably, a conical filter cartridge is provided in the filter box, and the upper end of the conical filter cartridge is coaxially fixedly connected to the ring frame and fixed to the inner wall of the filter box through the ring frame, the lower end of the conical filter cartridge is fixed with a sealing plate, and the air inlet end of the filter box is located at the lower side of the ring frame and connected to the pipeline, the air outlet end of the filter box is located at the upper side of the ring frame and connected to the pipeline, and a spiral tube is sleeved on the pipeline at the air inlet end of the filter box, the spiral tube is fixed on the vertical frame, and the outlet end of the spiral tube is connected to the bottom of the mixing box.

[0006] Preferably, a tube shaft passes through the bottom of the filter box and is rotatably connected thereto, and the tube shaft and the conical filter cartridge share the same central axis. The tube shaft is transmission-connected to the motor through a bevel gear set, and the motor is fixed on the stand.

[0007] Preferably, a support arm is fixed to the upper end of the tube shaft, and a brush roller is rotatably connected to the support arm, and the interior of the rotating shaft of the brush roller is hollow, and a plurality of small holes are opened on the side wall, and a sleeve cap is provided on the support arm, the sleeve cap is connected to the interior of the tube shaft through a conduit, and the sleeve cap is sleeved and rotatably connected to the end of the rotating shaft, the end of the rotating shaft away from the sleeve cap is coaxially fixedly connected to gear 2, and a gear ring 2 is fixed on the inner wall of the filter box, and gear 2 is meshingly connected to gear ring 2.

[0008] Preferably, a column is fixed to the inner bottom surface of the mixing box, the lower end of the tube shaft is open, and the lower end of the tube shaft passes through the top wall of the mixing box and extends into the column, and a spiral blade is fixed on a section of the circumferential wall of the tube shaft located inside the column.

[0009] Preferably, a cantilever is fixed on the side wall of the tube axis inside the mixing box, and the cantilever is fixedly connected to the stirring shaft for rotation, the upper end of the stirring shaft is coaxially fixedly connected to gear one, and a gear ring one is fixed on the inner wall of the mixing box, and gear one is meshingly connected to the gear ring one.

[0010] Preferably, a shaft rod passes through the top wall of the filter box and is rotatably connected to the filter box. The upper end of the shaft rod is coaxially fixedly connected to the friction disk, and the lower end passes through the sealing plate and is coaxially fixedly connected to the upper end of the pipe axis.

[0011] Preferably, pump impeller 1 and pump impeller 2 are fixed on the upper surface of the filter box, and pump impeller 1 and pump impeller 2 are symmetrically arranged on both sides of the friction disk. Water pipe 1 is fixed on the peripheral wall of pump impeller 1 and connected to it. The inlet end of water pipe 1 is connected to the decontaminant tank, and the outlet end is connected to the inlet end of the spiral tube. Water pipe 2 is fixed on the peripheral wall of pump impeller 2 and connected to it. The inlet end of water pipe 2 is connected to the dilution liquid tank, and the outlet end is connected to the inlet end of the spiral tube.

[0012] Preferably, the outer walls of pump wheel one and pump wheel two are respectively fixedly connected to the two ends of the sliding rod, and the sliding rod is arranged perpendicularly to the shaft rod, the sliding rod is sleeved and slidably connected to the sliding sleeve, the sliding sleeve is fixedly rotatably connected to the polygonal rod one and the polygonal rod two, and the polygonal rod one and the polygonal rod two are respectively coaxially fixedly connected to the friction wheel one and the friction wheel two, the friction wheel one and the friction wheel two are located on both sides of the central axis of the friction disk, the polygonal rod one and the polygonal rod two are both arranged perpendicularly to the shaft rod, a corresponding sleeve one is sleeved and slidably connected to the polygonal rod one, and the sleeve one is coaxially fixedly connected to the impeller shaft of the pump wheel one, a corresponding sleeve two is sleeved and slidably connected to the polygonal rod two, and the sleeve two is coaxially fixedly connected to the impeller shaft of the pump wheel two.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. High-efficiency drive: The system can automatically adjust the speed and power of the fume fan according to the real-time fume concentration detection data, quickly improve the performance of the fume fan when the amount of fume is large, and reduce energy consumption when the fume is small, so as to achieve energy-saving operation and ensure the effective removal of fume. When the pressure difference in the air supply section is too small, the performance of the air supply fan can be quickly improved. When the pressure difference is too large, the energy consumption can be reduced to achieve energy-saving operation and ensure sufficient air intake.

[0014] 2. Overclocking function: The system can automatically perform overclocking operation under specific requirements, without the need to replace equipment, thus reducing equipment costs.

[0015] 3. Real-time monitoring and data analysis: The oil fume control equipment can monitor and record gas concentration, temperature, operating parameters, energy consumption and other data in real time to help terminal users understand the equipment operation and emissions.

[0016] 4. Early warning function: When the monitoring comparison data exceeds the predetermined emission threshold, the system will automatically issue an early warning to remind users to take timely measures to ensure compliance with environmental protection requirements.

[0017] 5. Remote monitoring: Users can remotely view real-time and historical data through mobile devices, so that they can understand the operation status of the equipment at any time.

[0018] 6. Safety: Detect dangerous gases, automatically start and alarm in operation or standby mode to reduce safety hazards.

[0019] 7. In the present invention, the purifier can filter and purify the oil smoke while achieving real-time cleaning of the conical filter cartridge without manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the general assembly structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the purifier in the present invention; Figure 3 for Figure 2 A is an enlarged structural diagram; Figure 4 for Figure 2 The enlarged structural diagram at B in FIG.

[0021] In the figure: 1. Cooktop; 2. Oil fume sensor 1; 3. Temperature sensor; 4. Methane sensor; 5. Pipeline; 6. Purifier; 7. Oil fume fan; 8. Oil fume sensor 2; 9. Oil fume control equipment; 10. Terminal; 11. Air supply fan; 12. Pressure difference sensor; 13. Base; 14. Stand; 15. Cross brace; 16. Filter box; 17. Conical filter cartridge; 18. Ring stand; 19. Blocking plate; 20. Brush roller; 21. Drain pipe; 22. Collecting box; 23. Motor; 24. Bevel gear set; 25. Pipe shaft; 26. Mixing box; 27. Column; 2 8. spiral blade; 29. ​​cantilever; 30. gear one; 31. gear ring one; 32. spiral tube; 33. shaft; 34. friction disc; 35. pump wheel one; 36. decontaminant tank; 37. water pipe one; 38. pump wheel two; 39. diluent tank; 40. water pipe two; 41. sliding rod; 42. sliding sleeve; 43. friction wheel one; 44. polygonal rod one; 45. sleeve one; 46. friction wheel two; 47. polygonal rod two; 48. sleeve two; 49. support arm; 50. small hole; 51. conduit; 52. sleeve cap; 53. gear ring two; 54. gear two; 55. stirring shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4 The present invention provides a technical solution: a fan automatic control system, including a fume fan 7 for sucking and discharging the fume generated by a stove 1, and also including an air supply fan 11, a pressure difference sensor 12, a purifier 6 and an oil fume control device 9, the air supply fan 11 is arranged outdoors, the inlet end of the purifier 6 is connected to the pipeline 5, and the stove 1, the purifier 6 and the fume fan 7 are connected through the pipeline 5, and a methane sensor 4 is arranged on one side of the stove 1; An oil fume sensor 2 and a temperature sensor 3 are arranged on the pipe 5 on the inlet side of the purifier 6, an oil fume sensor 2 8 is arranged on the outlet side pipe 5 of the oil fume fan 7, an oil fume control device 9 is respectively connected to the stove 1, the purifier 6, the oil fume fan 7, the oil fume sensor 2, the temperature sensor 3, the oil fume sensor 2 8, the air supply fan 11, the pressure difference sensor 12 and the methane sensor 4, and the oil fume control device 9 is connected to the terminal 10 signal.

[0024] In this embodiment, the purifier 6 includes a filter box 16 and a mixing box 26. The mixing box 26 is fixed on the base 13. The base 13 is fixed with a vertical frame 14 and a collecting box 22. The bottom of the filter box 16 is connected to the collecting box 22 through a sewage pipe 21, and the filter box 16 is fixed on the vertical frame 14. The upper end of the vertical frame 14 is fixed with a cross brace 15, and the cross brace 15 is fixed with a decontaminant box 36 and a diluent box 39.

[0025] In this embodiment, a conical filter cartridge 17 is provided in the filter box 16, and the upper end of the conical filter cartridge 17 is coaxially fixedly connected to the ring frame 18, and is fixed to the inner side wall of the filter box 16 through the ring frame 18, and the lower end of the conical filter cartridge 17 is fixed with a blocking plate 19, and the air inlet end of the filter box 16 is located at the lower side of the ring frame 18 and is connected to the pipeline 5, and the air outlet end of the filter box 16 is located on the upper side of the ring frame 18 and is connected to the pipeline 5, and a spiral tube 32 is sleeved on the pipeline 5 at the air inlet end of the filter box 16, and the spiral tube 32 is fixed on the stand 14, and the outlet end of the spiral tube 32 is connected to the bottom of the mixing box 26, and the bottom of the filter box 16 is penetrated and fixedly rotatably connected with a pipe shaft 25, and the pipe shaft 25 and the conical filter cartridge 17 share the same central axis, and the pipe shaft 25 is transmission-connected to the motor 23 through a bevel gear set 24, and the motor 23 is fixed on the stand 14.

[0026] In this embodiment, a support arm 49 is fixed to the upper end of the tube shaft 25, and a brush roller 20 is rotatably connected to the support arm 49, and the rotating shaft of the brush roller 20 is hollow inside, and a plurality of small holes 50 are opened on the side wall. A sleeve cap 52 is provided on the support arm 49, and the sleeve cap 52 is connected to the inside of the tube shaft 25 through a conduit 51, and the sleeve cap 52 is sleeved and rotatably connected to the end of the rotating shaft, and the end of the rotating shaft away from the sleeve cap 52 is coaxially fixedly connected to a gear 2 54, and a gear ring 2 53 is fixed on the inner wall of the filter box 16, and the gear 2 54 is meshed with the gear ring 2 53.

[0027] In this embodiment, a column 27 is fixed to the inner bottom surface of the mixing box 26, the lower end of the tube shaft 25 is open, and the lower end of the tube shaft 25 passes through the top wall of the mixing box 26 and extends to the inside of the column 27, and a spiral blade 28 is fixed on a section of the circumferential wall of the tube shaft 25 located inside the column 27, and a cantilever 29 is fixed on the side wall of the tube shaft 25 located inside the mixing box 26, and the cantilever 29 is fixedly connected to the stirring shaft 55 for fixed axis rotation, and the upper end of the stirring shaft 55 is coaxially fixedly connected to the gear 30, and a gear ring 31 is fixed on the inner wall of the mixing box 26, and the gear 30 is meshingly connected with the gear ring 31.

[0028] In this embodiment, a shaft rod 33 passes through the top wall of the filter box 16 and is rotatably connected. The upper end of the shaft rod 33 is coaxially fixedly connected to the friction plate 34, and the lower end passes through the sealing plate 19 and is coaxially fixedly connected to the upper end of the pipe shaft 25.

[0029] In this embodiment, a pump wheel 1 35 and a pump wheel 2 38 are fixed on the upper surface of the filter box 16, and the pump wheels 1 35 and the pump wheels 2 38 are symmetrically arranged on both sides of the friction disk 34. The peripheral wall of the pump wheel 1 35 is fixed and connected to a water pipe 1 37, and the inlet end of the water pipe 1 37 is connected to the decontamination agent box 36, and the outlet end is connected to the inlet end of the spiral tube 32. The peripheral wall of the pump wheel 2 38 is fixed and connected to a water pipe 2 40, and the inlet end of the water pipe 2 40 is connected to the diluent box 39, and the outlet end is connected to the inlet end of the spiral tube 32. The outer side walls of the pump wheels 1 35 and the pump wheels 2 38 are respectively fixedly connected to the two ends of the sliding rod 41, and the sliding rod 41 is vertically arranged with the shaft rod 33, and the sliding rod 41 is sleeved and slidably connected. The sliding sleeve 42 is connected to a polygonal rod 1 44 and a polygonal rod 2 47 in a fixed-axis rotation manner on the sliding sleeve 42, and the polygonal rod 1 44 and the polygonal rod 2 47 are respectively coaxially fixedly connected to a friction wheel 1 44 and a friction wheel 2 46, wherein the friction wheel 1 44 and the friction wheel 2 46 are located on both sides of the central axis of the friction disk 34, and the polygonal rod 1 44 and the polygonal rod 2 47 are both vertically arranged with the shaft rod 33, and a matching sleeve 1 45 is sleeved and slidably connected on the polygonal rod 1 44, and the sleeve 1 45 is coaxially fixedly connected to the impeller shaft of the pump wheel 1 35, and a matching sleeve 2 48 is sleeved and slidably connected on the polygonal rod 2 47, and the sleeve 2 48 is coaxially fixedly connected to the impeller shaft of the pump wheel 2 38.

[0030] Working principle and advantages of the present invention: When the fan automatic control system is in use, the working process is as follows: like Figure 1As shown, the whole system has two working sections, one is the oil fume exhaust section, and the other is the non-sealed section. In the oil fume exhaust section, the oil fume control device 9 is used to regulate the operation of various equipment components. When the stove 1 is not working, the oil fume control device 9 controls the oil fume fan 7 to exhaust air at a preset speed. When the stove 1 is working, the smoke generated by the stove 1 is sucked into the pipeline 5 through the oil fume fan 7, and is discharged after being filtered and purified by the purifier 6. In this process, the oil fume sensor 1 2, the temperature sensor 3, and the methane sensor 4 collect data and feed it back to the oil fume control device 9. The speed and power of the oil fume fan 7 are adjusted through the algorithm output to achieve the purpose of energy saving. At the same time, the oil fume control device 9 monitors the oil fume emission concentration in real time through the oil fume sensor 2 8 to give an early warning. And remind the user of the terminal 10 to ensure compliance with environmental emission requirements. In the air supply section, the pressure difference is monitored by the pressure difference sensor 12 while the fume is extracted and fed back to the fume control device 9. The speed and power of the air supply fan 11 are adjusted through the algorithm output to achieve energy saving. The speed and power of the fume fan 7 are controlled according to the kitchen fume concentration. The fume sensor is installed on the main flue pipe corresponding to each stove 1. The number of sensors is determined according to the number of stoves 1. Moreover, the fans in the system all have the fan overclocking function. Under special needs, overclocking operation can be selected to cope with large air volume demand scenarios while reducing equipment investment costs. This fan automatic control system is equipped with automatic real-time data recording function and remote terminal real-time viewing function.

[0031] The beneficial effects of this fan automatic control system are: 1. High-efficiency drive: The system can automatically adjust the speed and power of the oil fume fan 7 according to the real-time oil fume concentration detection data, quickly improve the performance of the oil fume fan 7 when the amount of oil fume is large, and reduce energy consumption when the oil fume is small, so as to achieve energy-saving operation, while ensuring the effective removal of oil fume. When the pressure difference in the air supply section is too small, the performance of the air supply fan 11 is quickly improved. When the pressure difference is too large, the energy consumption is reduced to achieve energy-saving operation, while ensuring sufficient air intake.

[0032] 2. Overclocking function: The system can automatically perform overclocking operation under specific requirements, without the need to replace equipment, thus reducing equipment costs.

[0033] 3. Real-time monitoring and data analysis: The fume control device 9 can monitor and record data such as gas concentration, temperature, operating parameters, energy consumption, etc. in real time to help users of the terminal 10 understand the operation and emission of the equipment.

[0034] 4. Early warning function: When the monitoring comparison data exceeds the predetermined emission threshold, the system will automatically issue an early warning to remind users to take timely measures to ensure compliance with environmental protection requirements.

[0035] 5. Remote monitoring: Users can remotely view real-time and historical data through mobile devices, so that they can understand the operation status of the equipment at any time.

[0036] 6. Safety: Detect dangerous gases, automatically start and alarm in operation or standby mode to reduce safety hazards.

[0037] As mentioned above, the working process after the oil smoke enters the purifier 6 through the pipe 5 is as follows: like Figure 2 , Figure 3 and Figure 4 As shown, in the fume exhaust section, the fume control device 9 controls the fume fan 7 to suck the fume through the pipe 5, and the fume enters the filter box 16 through the pipe 5, and is filtered by the conical filter cartridge 17 to remove the fume particles, and the purified air is discharged from the outlet end of the filter box 16. During this process, the motor 23 works and drives the tube shaft 25 to rotate through the bevel gear set 24, so that the tube shaft 25 drives the brush roller 20 to rotate through the support arm 49, so that the brush roller 20 cleans the windward side of the conical filter cartridge 17 and brushes off the oil stains adhered to the windward side of the conical filter cartridge 17, so as to maintain the efficient filtering effect of the conical filter cartridge 17 and avoid blockage. Moreover, under the cooperation of the gear 2 54 and the gear ring 2 53, the brush roller 20 rotates around itself, thereby realizing a compound motion and improving the cleaning efficiency and effect of the windward side of the conical filter cartridge 17.

[0038] When the pipe shaft 25 rotates, the friction plate 34 is driven to rotate through the shaft 33, so that the friction plate 34 drives the friction wheel 1 43 and the friction wheel 2 46 to rotate in the opposite direction, so that the pump wheel 1 35 transports the decontaminant in the decontaminant box 36 to the spiral tube 32 through the water pipe 1 37, and the pump wheel 2 38 transports the diluent in the diluent tank 39 to the spiral tube 32 through the water pipe 2 40, so that the decontaminant and the diluent are initially mixed in the spiral tube 32 and then enter the mixing box 26, and the oil smoke air in the pipeline 5 can heat the mixed liquid in the spiral tube 32, so as to achieve the effect of using the oil smoke heat to promote the mixing of the decontaminant and the diluent.

[0039] When the pipe shaft 25 rotates, the stirring shaft 55 is driven to rotate through the cantilever 29, and the stirring shaft 55 rotates around itself under the cooperation of the gear 30 and the ring gear 31, so as to further stir and mix the mixed liquid entering the mixing box 26. Then the pipe shaft 25 pressurizes the mixed liquid entering the column 27 through the spiral blade 28 and transports it to the conduit 51 through the pipe shaft 25, and then enters the inside of the rotating shaft of the brush roller 20 and is sprayed out through the small hole 50, so as to realize the spraying of the decontamination mixed liquid while cleaning the windward side of the conical filter cartridge 17, so as to better remove the oil stains adhered to the windward side of the conical filter cartridge 17, and also facilitate the dissolution and flushing of the brushed oil stains, and collect them in the collection box 22 through the sewage pipe 21, so as to improve the purification effect of the oil stains in the oil smoke. As described above, by adjusting the position of the sliding sleeve 42 on the sliding rod 41, the transmission ratio of the friction disc 34 to the friction wheel 1 43 and the friction wheel 2 46 is adjusted, thereby adjusting the delivery ratio of the pump wheel 1 35 and the pump wheel 2 38 to the decontamination agent and the diluent, and then the concentration of the decontamination mixture can be adjusted according to the actual situation, which is practical and convenient.

[0040] The adjustment operation is as follows: when the sleeve 42 is moved to the right, the distance between the friction wheel 1 43 and the center of the friction disk 34 increases, and the distance between the friction wheel 2 46 and the center of the friction disk 34 decreases. At this time, the rotation speed of the friction wheel 1 43 increases, and the rotation speed of the friction wheel 2 46 decreases, thereby increasing the amount of decontamination agent delivered by the pump wheel 1 35 and reducing the amount of diluent delivered by the pump wheel 2 38, thereby increasing the concentration of the decontamination liquid; when the sleeve 42 is moved to the left, the distance between the friction wheel 1 43 and the center of the friction disk 34 decreases, and the distance between the friction wheel 2 46 and the center of the friction disk 34 increases. At this time, the rotation speed of the friction wheel 1 43 decreases, and the rotation speed of the friction wheel 2 46 increases, thereby reducing the amount of decontamination agent delivered by the pump wheel 1 35 and increasing the amount of diluent delivered by the pump wheel 2 38, thereby reducing the concentration of the decontamination liquid.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A fan automatic control system, comprising a fume fan (7) for extracting and discharging fume generated by a stove (1), characterized in that: It also includes an air supply fan (11), a pressure difference sensor (12), a purifier (6) and an oil fume control device (9), wherein the air supply fan (11) is arranged outdoors, the inlet end of the purifier (6) is connected to a pipeline (5), and the stove (1), the purifier (6) and the oil fume fan (7) are connected via the pipeline (5), and a methane sensor (4) is arranged on one side of the stove (1); The pipeline (5) on the inlet side of the purifier (6) is provided with an oil fume sensor 1 (2) and a temperature sensor (3); the pipeline (5) on the outlet side of the oil fume fan (7) is provided with an oil fume sensor 2 (8); the oil fume control device (9) is respectively connected to the stove (1), the purifier (6), the oil fume fan (7), the oil fume sensor 1 (2), the temperature sensor (3), the oil fume sensor 2 (8), the air supply fan (11), the pressure difference sensor (12) and the methane sensor (4); and the oil fume control device (9) is connected to the terminal (10) for signal transmission.

2. A fan automatic control system according to claim 1, characterized in that: The purifier (6) comprises a filter box (16) and a mixing box (26), wherein the mixing box (26) is fixed on a base (13), a stand (14) and a collection box (22) are fixed on the base (13), the bottom of the filter box (16) is connected to the collection box (22) via a sewage discharge pipe (21), and the filter box (16) is fixed on the stand (14), a cross brace (15) is fixed at the upper end of the stand (14), and a decontamination agent box (36) and a diluent box (39) are fixed on the cross brace (15).

3. A fan automatic control system according to claim 2, characterized in that: A conical filter cartridge (17) is arranged in the filter box (16), and the upper end of the conical filter cartridge (17) is coaxially fixedly connected to the ring frame (18) and fixed to the inner wall of the filter box (16) through the ring frame (18). A blocking plate (19) is fixed to the lower end of the conical filter cartridge (17). The air inlet end of the filter box (16) is located at the lower side of the ring frame (18) and connected to the pipeline (5). The air outlet end of the filter box (16) is located at the upper side of the ring frame (18) and connected to the pipeline (5). A spiral tube (32) is sleeved on the pipeline (5) at the air inlet end of the filter box (16). The spiral tube (32) is fixed to the stand (14), and the outlet end of the spiral tube (32) is connected to the bottom of the mixing box (26).

4. A fan automatic control system according to claim 3, characterized in that: A tube shaft (25) passes through the bottom of the filter box (16) and is rotatably connected thereto, and the tube shaft (25) and the conical filter cartridge (17) share a common central axis. The tube shaft (25) is transmission-connected to a motor (23) via a bevel gear set (24), and the motor (23) is fixed on the stand (14).

5. A fan automatic control system according to claim 4, characterized in that: A support arm (49) is fixed to the upper end of the tube shaft (25), and a brush roller (20) is rotatably connected to the support arm (49), the rotating shaft of the brush roller (20) is hollow inside, and a plurality of small holes (50) are opened on the side wall, a sleeve cap (52) is provided on the support arm (49), the sleeve cap (52) is connected to the inside of the tube shaft (25) through a conduit (51), and the sleeve cap (52) is sleeved and rotatably connected to the end of the rotating shaft, the end of the rotating shaft away from the sleeve cap (52) is coaxially fixedly connected to a second gear (54), and a second gear ring (53) is fixed on the inner wall of the filter box (16), and the second gear (54) is meshingly connected to the second gear ring (53).

6. A fan automatic control system according to claim 5, characterized in that: A column (27) is fixed to the inner bottom surface of the mixing box (26); the lower end of the tube shaft (25) is open, and the lower end of the tube shaft (25) passes through the top wall of the mixing box (26) and extends into the inside of the column (27); a spiral blade (28) is fixed to a section of the circumferential wall of the tube shaft (25) located inside the column (27).

7. A fan automatic control system according to claim 6, characterized in that: A cantilever (29) is fixed on the side wall of the tube shaft (25) located inside the mixing box (26), and the cantilever (29) is rotatably connected to a stirring shaft (55). The upper end of the stirring shaft (55) is coaxially fixedly connected to a gear one (30). A gear ring one (31) is fixed on the inner wall of the mixing box (26), and the gear one (30) is meshingly connected to the gear ring one (31).

8. The fan automatic control system according to claim 4, characterized in that: A shaft rod (33) passes through the top wall of the filter box (16) and is rotatably connected to the shaft. The upper end of the shaft rod (33) is coaxially fixedly connected to the friction disk (34), and the lower end passes through the sealing plate (19) and is coaxially fixedly connected to the upper end of the pipe shaft (25).

9. A fan automatic control system according to claim 8, characterized in that: A pump wheel 1 (35) and a pump wheel 2 (38) are fixed on the upper surface of the filter box (16). The pump wheel 1 (35) and the pump wheel 2 (38) are symmetrically arranged on both sides of the friction plate (34). A water pipe 1 (37) is fixed on the peripheral wall of the pump wheel 1 (35) and is connected to the water pipe 1. The inlet end of the water pipe 1 (37) is connected to the decontamination agent box (36), and the outlet end is connected to the inlet end of the spiral tube (32). A water pipe 2 (40) is fixed on the peripheral wall of the pump wheel 2 (38) and is connected to the water pipe 2. The inlet end of the water pipe 2 (40) is connected to the diluent box (39), and the outlet end is connected to the inlet end of the spiral tube (32).

10. The fan automatic control system according to claim 9, characterized in that: The outer side walls of the pump wheel 1 (35) and the pump wheel 2 (38) are respectively fixedly connected to the two ends of the slide rod (41), and the slide rod (41) is arranged perpendicular to the shaft rod (33). The slide rod (41) is sleeved and slidably connected to the slide sleeve (42), and the slide sleeve (42) is fixedly connected to the multi-faceted rod 1 (44) and the multi-faceted rod 2 (47) in a fixed axis rotation manner. The multi-faceted rod 1 (44) and the multi-faceted rod 2 (47) are respectively coaxially fixedly connected to the friction wheel 1 (44) and the friction wheel 2 (46). The friction wheel 1 (44) and the friction wheel 2 (46) are Wheel 2 (46) is located on both sides of the central axis of the friction disk (34), and the polygonal rod 1 (44) and the polygonal rod 2 (47) are both arranged perpendicular to the shaft rod (33). A matching sleeve 1 (45) is sleeved and slidably connected on the polygonal rod 1 (44), and the sleeve 1 (45) is coaxially fixedly connected to the impeller shaft of the pump wheel 1 (35). A matching sleeve 2 (48) is sleeved and slidably connected on the polygonal rod 2 (47), and the sleeve 2 (48) is coaxially fixedly connected to the impeller shaft of the pump wheel 2 (38).

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