A smart control type fan filter unit and its adaptive adjustment system

Abstract

The invention discloses an intelligent control fan filter unit and an adaptive adjustment system thereof, belonging to the technical field of fan filter units, and comprising: a mounting seat, a bellows main body is fixedly arranged above the mounting seat, and an air inlet duct is connected to the lower part of the mounting seat; an upper sealed bin is arranged above the bellows main body; a fan device is installed above the upper sealed bin, and the fan device is used to introduce external fresh air into the bellows main body; an air supply grading mechanism is arranged in the upper sealed bin, and the air supply grading mechanism performs preliminary filtration and graded delivery on the introduced fresh air based on air quality conditions; a plurality of air filter units are evenly distributed, each air filter unit is independently installed in the bellows main body, and performs secondary air filtration on the fresh air delivered in each grade; the invention can intelligently control the amount of fresh air entering each air filter unit according to the air pollution degree in the current environment, and each air filter unit performs air filtering effects of different intensities to ensure that the fresh air is optimally filtered.

Description

Technical Field

[0001] The invention belongs to the technical field of fan filter units, and in particular is an intelligent control type fan filter unit and an adaptive adjustment system thereof. Background Art

[0002] With the decline of environmental quality and the improvement of people's requirements for indoor air quality, fan filter units (FFU) have been widely used in various indoor environments. FFU usually has a compact design and can be easily installed on the ceiling or wall to save space; the current FFU system is generally equipped with an exhaust fan and a fan filter arranged in front of the air inlet of the exhaust fan. Due to the single and non-adjustable structure of the filter, it cannot effectively deal with pollutants of different sizes and types when the air quality is poor, and it cannot be automatically and intelligently adjusted according to the actual air quality.

[0003] Therefore, it is necessary to provide an intelligently controlled fan filter unit and an adaptive adjustment system thereof to solve the problems raised in the above background technology. Summary of the invention

[0004] To achieve the above object, the present invention provides the following technical solution: an intelligent control fan filter unit, comprising:

[0005] A mounting seat, wherein a bellows body is fixedly arranged above the mounting seat, and an air inlet duct is connected to the bottom of the mounting seat;

[0006] An upper sealing chamber, arranged above the bellows body;

[0007] A fan device is installed above the upper sealed chamber, and is used to introduce external fresh air into the wind box body;

[0008] An outer air duct is fixed to the upper end of the upper sealing chamber and is located outside the fan device;

[0009] An air particle monitoring sensor is disposed on the mounting base and located on one side of the bellows body, wherein the air particle monitoring sensor evaluates the air quality according to the PM2.5 pollution level in the current air;

[0010] An air supply classification mechanism is arranged in the upper sealed chamber, and the air supply classification mechanism performs preliminary filtration and graded transmission of the introduced fresh air based on the air quality conditions;

[0011] There are multiple air filter units evenly distributed, each of which is independently installed in the air box body, and the air inlet ends of the air filter units are connected to the air supply classification mechanism, and the fresh air delivered by each classification is filtered twice;

[0012] The collecting bin is arranged in the wind box body and is located below each of the air filtering units. The collecting bin gathers and mixes the filtered fresh air and transports it to the air inlet duct.

[0013] Preferably, the fan device comprises:

[0014] The structural frame has a triangular cross-section and is fixed to the upper sealed chamber. The structural frame is provided with air outlets distributed circumferentially;

[0015] The fan blades are rotatably mounted in the structural frame, and an exhaust seat is arranged below the structural frame;

[0016] The motor driver is vertically mounted above the structural frame through a fixing frame, and the output end of the motor driver is connected to the fan blade.

[0017] Preferably, the air supply classification mechanism comprises:

[0018] The central air duct is sealed and connected below the fan device;

[0019] A vortex chamber is fixed in the upper sealing chamber, and the upper end of the vortex chamber is sealed and connected to the central air duct;

[0020] The air supply biofilm components are provided in a plurality and arranged inside the vortex cavity, wherein the air supply biofilm components divide the vortex cavity into a plurality of air ducts, each of which is provided corresponding to the air filter unit;

[0021] The exhaust holes are arranged in the vortex cavity and located in each of the air ducts. Pipes are connected to the outside of the exhaust holes, and the other end of the pipes is connected to the air filtering unit.

[0022] Preferably, the air supply biofilm assembly comprises:

[0023] An outer frame is vertically fixed in the vortex chamber, and two guide rods are vertically symmetrically arranged in the outer frame;

[0024] a biofilm layer disposed in the outer frame;

[0025] An upper pressing plate is horizontally installed in the outer frame, both ends of the upper pressing plate are slidably connected to the guide rod, and the lower side of the upper pressing plate is in contact with the biofilm layer;

[0026] The telescopic cylinders are symmetrically arranged in plurality, each of which is vertically fixed above the outer frame, and one end of each of the telescopic cylinders is connected to the upper pressing plate.

[0027] Preferably, the biofilm layers are arranged in sequence according to pore sizes in the vortex chamber, and the upper pressing plate can gradually press the biofilm layers and change the porosity of the biofilm layers while sliding downward.

[0028] Preferably, each air supply biofilm assembly in the vortex chamber can freely adjust the air permeability of the biofilm layer according to the air quality, so that the fresh air enters the corresponding air filter unit from each exhaust hole for filtering with different intensities.

[0029] Preferably, the air filtering unit comprises:

[0030] An air cavity is arranged in the bellows body, and an air supply seat is fixed symmetrically up and down in the air cavity;

[0031] An air supply fan is rotatably mounted above the interior of the air cavity, and an outer cover of the air supply fan is connected to a sealing cover;

[0032] A ventilation disk is vertically arranged and distributed in the air cavity, and two ventilation holes are centrally and symmetrically provided on the ventilation disk;

[0033] A filter plate is arranged in one-to-one correspondence with the ventilation plate, and the filter plate is coaxially arranged below the ventilation plate;

[0034] The central shaft is vertically rotatably connected to the middle of the air supply seat, the filter discs are fixed to the central shaft, and a driving part for driving the central shaft to rotate and adjust is arranged below the central shaft.

[0035] Preferably, the filter plate has multiple groups of filter screens arranged in accordance with the size of the mesh apertures, each group of filter screens is centrally symmetrically distributed, and each of the ventilation holes is simultaneously connected to two filter screens at adjacent positions;

[0036] The specifications of the filter discs located at the upper and lower parts of the air cavity are different, and the filter mesh aperture of the filter disc located at the lower part in the vertical direction is smaller than the filter mesh aperture of the filter disc located at the upper part.

[0037] Preferably, an adaptive adjustment system of an intelligently controlled fan filter unit comprises intelligently controlled fan filter units, wherein the intelligently controlled fan filter units are arranged equidistantly.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The present invention mainly introduces external fresh air into the bellows body through a fan device, wherein the fresh air can be filtered and classified by an air supply classification mechanism before entering the bellows body, so that the classified fresh air can enter each air filtering unit through a pipeline for effective filtration, thereby improving the quality of the fresh air; wherein the air supply biofilm component can freely adjust the porosity of the biofilm layer according to the degree of air pollution in the current environment, thereby intelligently controlling the amount of fresh air entering each air filtering unit, and each air filtering unit performs air filtering effects of different intensities, ensuring that the fresh air is optimally filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 It is a schematic diagram of a half-section structure of the upper sealed bin in the present invention;

[0042] Figure 3 It is a structural schematic diagram of the fan device and the air supply classification mechanism in the present invention;

[0043] Figure 4 It is a schematic diagram of the structure of the vortex chamber in the present invention;

[0044] Figure 5 It is a schematic diagram of the structure of the air supply biofilm assembly in the present invention;

[0045] Figure 6 It is a structural schematic diagram of the air filter unit in the present invention;

[0046] Figure 7 It is a schematic diagram of the structure of the ventilation plate in the present invention;

[0047] Figure 8 It is a schematic diagram of the structure of the filter disc in the present invention;

[0048] In the figure: 1. bellows body; 11. upper sealing chamber; 12. mounting seat; 13. outer air duct; 14. collecting chamber; 2. fan device; 21. structural frame; 22. fan blades; 23. exhaust seat; 24. motor driver; 3. air supply classification mechanism; 31. central air duct; 32. vortex chamber; 33. exhaust hole; 34. pipeline; 4. air filter unit; 41. air cavity; 42. air supply seat; 43. air supply fan; 44. sealing cover; 45. ventilation plate; 451. ventilation hole; 46. filter plate; 461. filter screen; 47. central axis; 48. driving unit; 5. air supply biofilm assembly; 51. outer frame; 52. guide rod; 53. biofilm layer; 54. upper pressure plate; 55. telescopic cylinder. DETAILED DESCRIPTION

[0049] See also Figure 1-Figure 8 In an embodiment of the present invention, an intelligent control type fan filter unit comprises:

[0050] A mounting seat 12, the upper part of which is fixedly provided with a bellows body 1, and the lower part of which is connected with an air inlet duct, which can deliver fresh air into the room;

[0051] An upper sealing chamber 11 is arranged above the bellows body 1;

[0052] A fan device 2 is installed above the upper sealed chamber 11, and the fan device 2 is used to introduce external fresh air into the wind box body 1;

[0053] The outer air cylinder 13 is fixed to the upper end of the upper sealing chamber 11 and is located outside the fan device 2;

[0054] An air particle monitoring sensor (not shown in the figure) is arranged on the mounting seat 12 and is located on one side of the bellows body 1. The air particle monitoring sensor evaluates the air quality according to the PM2.5 pollution level in the current air;

[0055] An air supply classification mechanism 3 is arranged in the upper sealed chamber 11, and the air supply classification mechanism 3 performs preliminary filtration and graded transmission of the introduced fresh air based on the air quality conditions;

[0056] There are multiple evenly distributed air filter units 4, each of which is independently installed in the bellows body 1. The air inlet ends of the air filter units 4 are connected to the air supply classification mechanism 3, and the fresh air delivered in each grade is subjected to secondary air filtering; that is, according to the air quality conditions, the air supply classification mechanism 3 divides the fresh air into different grades, and delivers them to different air filter units 4 respectively, to ensure that each air filter unit 4 can handle the fresh air flow suitable for its capacity range, thereby achieving different intensities of air filtering effects on the fresh air; at the same time, the air supply classification mechanism 3 can also dynamically adjust the distribution of fresh air according to the air quality data monitored in real time, to ensure that the best filtering effect can be provided under different pollution levels.

[0057] The collecting bin 14 is arranged in the wind box body 1 and is located below each of the air filter units 4. The collecting bin 14 gathers and mixes the filtered fresh air and transports it to the air inlet duct.

[0058] In this embodiment, the fan device 2 includes:

[0059] The structural frame 21 has a triangular cross-section and is fixed to the upper sealed chamber 11. The structural frame 21 has air outlets distributed circumferentially;

[0060] The fan blades 22 are rotatably mounted in the structural frame 21, and an exhaust seat 23 is provided below the structural frame 21;

[0061] The motor driver 24 is vertically mounted above the structural frame 21 through a fixing frame, and the output end of the motor driver 24 is connected to the fan blades 22 , so that the external fresh air is introduced downward into the exhaust seat 23 through the rotation of the fan blades 22 .

[0062] As a preferred embodiment, the air supply classification mechanism 3 includes:

[0063] The central air duct 31 is sealed and connected below the fan device 2;

[0064] The vortex chamber 32 is fixed in the upper sealing chamber 11, and the upper end of the vortex chamber 32 is sealed and connected to the central air duct 31;

[0065] The air supply biofilm assembly 5 is provided in a plurality and arranged inside the vortex chamber 32. The air supply biofilm assembly 5 divides the vortex chamber 32 into a plurality of air ducts, each of which is provided corresponding to the air filter unit 4;

[0066] The exhaust holes 33 are arranged in the vortex chamber 32 and located in each of the air ducts. The exhaust holes 33 are connected to the outside of the exhaust holes 33 with pipes 34. The other end of the pipes 34 is connected to the air filter unit 4. That is to say, fresh air can enter the vortex chamber 32 through the central air duct 31, thereby flowing along the internal channel of the vortex chamber 32 and passing through each air supply biofilm component 5 in turn, and a part of the fresh air can pass through the air supply biofilm component 5 into the next air duct, and a part of the fresh air remains in the next air duct and is discharged from the corresponding exhaust holes 33 (the same biofilm layer can be set in the exhaust holes to prevent the exhaust holes 33 from affecting the normal flow of fresh air along the inside of the vortex chamber 32), so as to be filtered by the corresponding connected air filter unit 4.

[0067] In this embodiment, the air supply biofilm assembly 5 includes:

[0068] The outer frame 51 is vertically fixed in the vortex chamber 32, and two guide rods 52 are vertically symmetrically arranged in the outer frame 51;

[0069] A biofilm layer 53 is disposed in the outer frame 51;

[0070] An upper pressing plate 54 is horizontally installed in the outer frame 51, both ends of the upper pressing plate 54 are slidably connected to the guide rod 52, and the lower side of the upper pressing plate 54 is in contact with the biofilm layer 53;

[0071] The telescopic cylinders 55 are symmetrically arranged in multiple numbers, each of which is vertically fixed above the outer frame 51, and one end of the telescopic cylinder 55 is connected to the upper pressure plate 54, wherein the biofilm layer 53 can filter and grade the fresh air, and the fresh air can pass through each biofilm layer 53 in sequence along the internal channel of the vortex cavity 32. Since the filtering and ventilation effects of each biofilm layer 53 are different, and the fresh air continues to flow along the vortex cavity 32, each biofilm layer 53 will divide the fresh air into different grades, that is, a part of the fresh air in each biofilm layer 53 area will fail to pass through in time, so that it can enter the pipe 34 from each exhaust hole 33 accordingly; therefore, by adjusting the exhaust working intensity of the air supply fan 43 in the air filter unit 4, the flow rate of fresh air entering each air filter unit 4 can be adjusted accordingly. Thereby, the flow ratio of fresh air entering each air filter unit 4 is controlled according to the quality of environmental fresh air, so as to realize filtering and purification of fresh air with different intensities; for example, when the quality of environmental air is poor and the user end has a large demand for fresh air, the fresh air is filtered and graded through the biofilm layer 53 in each air supply biofilm component 5, and the corresponding air supply fans 43 in the air filter units 4 of levels 7, 8, and 9 (here is the filtering level) work at maximum power, while the air supply fans 43 in the air filter units 4 of levels 5 and 6 can work at a low speed, and the air supply fans 43 in the air filter units 4 of the remaining levels do not work, so that the fresh air is allowed to enter the air filter unit 4 with high filtration intensity as much as possible, and the fresh air filtered by each air filter unit 4 is finally mixed in the collecting bin 14 to meet the flow and quality requirements of the user end for the fresh air; thereby, intelligent filtering and adjustment of the fresh air can be realized.

[0072] In this embodiment, the biofilm layer 53 is arranged in sequence according to the pore size in the vortex chamber 32, and the upper pressure plate 54 can gradually press the biofilm layer 53 and change the porosity of the biofilm layer 53 while sliding downward, thereby effectively controlling the amount of fresh air passing through each biofilm layer 53, so that the fresh air can be sent to the corresponding air filter unit 4 for treatment according to the air quality.

[0073] In this embodiment, each air supply biofilm assembly 5 in the vortex chamber 32 can freely adjust the air permeability of the biofilm layer 53 according to the air quality, so that the fresh air enters the corresponding air filter unit 4 from each exhaust hole 33 for filtering with different intensities.

[0074] As a preferred embodiment, the air filtering unit 4 includes:

[0075] An air cavity 41 is provided in the bellows body 1, and an air supply seat 42 is fixed symmetrically in the upper and lower parts of the air cavity 41;

[0076] The air supply fan 43 is rotatably mounted on the upper part of the air cavity 41, and the outer cover of the air supply fan 43 is connected to a sealing cover 44;

[0077] The ventilation plate 45 is vertically arranged in the air cavity 41, and two ventilation holes 451 are centrally symmetrically provided on the ventilation plate 45;

[0078] The filter plate 46 is arranged in one-to-one correspondence with the ventilation plate 45, and the filter plate 46 is coaxially arranged below the ventilation plate 45;

[0079] The central shaft 47 is vertically rotatably connected to the middle of the air supply seat 42, and the filter plates 46 are fixed to the central shaft 47. A driving part 48 for driving the central shaft 47 to rotate and adjust is provided below the central shaft 47.

[0080] In this embodiment, a plurality of groups of filters 461 are arranged in the filter plate 46 according to the size of the mesh aperture, and each group of filters 461 is centrally symmetrically distributed, and each of the air holes 451 is simultaneously connected to two filters 461 at adjacent positions; thus, two filters 461 of different sizes can be used for fresh air filtration, which can effectively ensure the air supply efficiency and reduce the risk of blockage caused by the design of a single filter 461, and can also use the filter 461 specified in the standard and the filter 461 slightly higher (or slightly lower) than the standard to filter the fresh air according to the fresh air demand, thereby having a higher intelligent adjustment effect;

[0081] The specifications of the filter plates 46 located at the upper and lower parts of the wind cavity 41 are different, and the aperture of the filter screen 461 of the filter plate 46 located at the lower part in the vertical direction is smaller than the aperture of the filter screen 461 of the filter plate 46 located at the upper part; it should be noted that each group of filter screens 461 on each filter plate 46 is distributed one by one in the vertical direction, so that the central axis 47 can change the overall air filtering strength of the air filtering unit 4 during the rotation adjustment.

[0082] In the present embodiment, an adaptive adjustment system of an intelligently controlled fan filter unit includes intelligently controlled fan filter units, and the intelligently controlled fan filter units are arranged equidistantly.

[0083] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent control fan filter unit, characterized in that: It includes: A mounting seat (12), wherein a bellows body (1) is fixedly arranged above the mounting seat (12), and an air inlet duct is connected to the bottom of the mounting seat (12); An upper sealed chamber (11) is arranged above the bellows main body (1); a fan device (2) is installed above the upper sealed chamber (11), and the fan device (2) is used to introduce external fresh air into the bellows main body (1); An outer air cylinder (13) is fixed to the upper end of the upper sealing chamber (11) and is located outside the fan device (2); An air particle monitoring sensor, arranged on a mounting seat (12) and located on one side of the bellows body (1), wherein the air particle monitoring sensor assesses air quality according to the PM2.5 pollution level in the current air; An air supply classification mechanism (3) is arranged in the upper sealed chamber (11), and the air supply classification mechanism (3) performs preliminary filtration on the introduced fresh air based on air quality conditions and transports it in a classified manner; The air filter units (4) are multiple and evenly distributed, each of the air filter units (4) is independently installed in the wind box body (1), the air inlet ends of the air filter units (4) are connected to the air supply classification mechanism (3), and the fresh air delivered by each classification is filtered twice; A collecting bin (14) is arranged in the wind box body (1) and is located below each of the air filter units (4), and the collecting bin (14) collects and mixes the filtered fresh air and delivers it to the air inlet duct; The air supply classification mechanism (3) comprises: A central air duct (31) is sealed and connected below the fan device (2); A vortex chamber (32) is fixed in the upper sealing chamber (11), and the upper end of the vortex chamber (32) is sealed and connected to the central air duct (31); The air supply biofilm components (5) are provided in plurality and arranged inside the vortex chamber (32); the air supply biofilm components (5) divide the vortex chamber (32) into a plurality of air ducts, each of the air ducts being provided corresponding to the air filter unit (4); An exhaust hole (33) is arranged in the vortex cavity (32) and located in each of the air ducts; a pipe (34) is connected to the outside of each of the exhaust holes (33); the other end of the pipe (34) is connected to the air filtering unit (4).

2. The intelligent control fan filter unit according to claim 1, characterized in that: The fan device (2) comprises: A structural frame (21) having a triangular cross-section and fixed to the upper sealed bin (11), wherein air outlets are distributed circumferentially on the structural frame (21); The fan blade (22) is rotatably mounted in the structural frame (21), and an exhaust seat (23) is provided below the structural frame (21); The motor driver (24) is vertically mounted above the structural frame (21) via a fixing frame, and the output end of the motor driver (24) is connected to the fan blade (22).

3. The intelligent control fan filter unit according to claim 1, characterized in that: The air supply biofilm component (5) comprises: An outer frame (51) is vertically fixed in the vortex chamber (32), and two guide rods (52) are vertically symmetrically arranged in the outer frame (51); The biofilm layer (53) is arranged in the outer frame (51); the upper pressing plate (54) is horizontally installed in the outer frame (51), both ends of the upper pressing plate (54) are slidably connected to the guide rod (52), and the lower side of the upper pressing plate (54) is in abutment with the biofilm layer (53); The telescopic cylinders (55) are multiple and symmetrically arranged, and each of the telescopic cylinders (55) is vertically fixed above the outer frame (51), and one end of the telescopic cylinder (55) is connected to the upper pressing plate (54).

4. The intelligent control fan filter unit according to claim 3, characterized in that: The biofilm layer (53) is arranged in sequence according to the pore size in the vortex chamber (32), and the upper pressing plate (54) is capable of gradually pressing the biofilm layer (53) and changing the porosity of the biofilm layer while sliding downward.

5. The intelligent control fan filter unit according to claim 4, characterized in that: Each air supply biofilm assembly (5) in the vortex chamber (32) can freely adjust the air permeability of the biofilm layer (53) according to the air quality, so that the fresh air enters the corresponding air filter unit (4) from each exhaust hole (33) and is filtered with different intensities.

6. The intelligent control fan filter unit according to claim 1, characterized in that: The air filtering unit (4) comprises: An air cavity (41) is arranged in the bellows main body (1), and an air supply seat (42) is fixed symmetrically in the upper and lower parts of the air cavity (41); An air supply fan (43) is rotatably mounted above the interior of the air cavity (41); an outer cover of the air supply fan (43) is connected to a sealing cover (44); A ventilation plate (45) is arranged vertically and distributed in the air cavity (41), and two ventilation holes (451) are centrally symmetrically provided on the ventilation plate (45); A filter plate (46) is arranged in one-to-one correspondence with the ventilation plate (45), and the filter plate (46) is coaxially arranged below the ventilation plate (45); The central shaft (47) is vertically rotatably connected to the middle of the air supply seat (42), the filter discs (46) are fixed to the central shaft (47), and a driving unit (48) for driving the central shaft (47) to rotate and adjust is provided below the central shaft (47).

7. The intelligent control fan filter unit according to claim 6, characterized in that: A plurality of groups of filter screens (461) are arranged in the filter disc (46) according to the size of the mesh apertures, each group of the filter screens (461) are centrally symmetrically distributed, and each of the ventilation holes (451) is simultaneously connected to two filter screens (461) located in adjacent positions; The filter discs (46) located at the upper and lower parts of the air cavity (41) have different specifications, and the pore size of the filter screen (461) of the filter disc (46) located at the lower part in the vertical direction is smaller than the pore size of the filter screen (461) of the filter disc (46) located at the upper part.

8. An adaptive adjustment system for an intelligent control fan filter unit, characterized in that: It comprises the intelligent control type fan filter unit as described in any one of claims 1 to 7, wherein the intelligent control type fan filter units are arranged in an equidistant manner.

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