CN115875782A - Thin FFU fan filtering device - Google Patents

Abstract

The application relates to the air purification field, discloses a slim FFU fan filter equipment, includes: the box body is provided with an air inlet positioned at the top and an air outlet positioned at the bottom; the centrifugal fan is fixedly arranged at the air inlet of the box body and is used for sending airflow into the box body; the filter is covered and installed at the air outlet of the box body and used for filtering the airflow in the box body and then sending the airflow into the clean room; the turbulence piece is rotatably arranged in the box body around a vertical axis, and a plurality of stirring plates for stirring airflow are arranged on the turbulence piece; the quantity of air outlet is a plurality of, and every air outlet department one-to-one is provided with a centrifugal fan, and centrifugal fan stirs the board towards stirring, and vortex piece work is stirred the air current with flowing to the filter in the box and is even. This application can realize the even air supply to the filter in comparatively thin space effectively through the setting of a plurality of centrifugal fan cooperation vortex pieces to reduce the demand to installation space layer height when guaranteeing the filter effect.

Description

Thin FFU fan filtering device

Technical Field

The application relates to the field of air purification, especially a slim FFU fan filter equipment.

Background

The Fan Filter Unit is called an FFU (Fan Filter Unit), which is a combination of a Fan and a Filter, and is also called a Filter device with a Fan. The FFU is a necessary equipment used in a large amount in a clean room process, and mainly functions to perform a final filtering process on air introduced into a clean room at the end of a clean room purification system. The FFU is usually installed at the air supply end of the ceiling of a clean room, such as a clean room, a clean bench, a clean production line, etc., and is usually installed at the keel of the ceiling of the room to control the particles in the clean room air by vertical air supply and purify the air.

The FFU comprises a centrifugal fan positioned above and an air filter positioned below, wherein the centrifugal fan of the FFU sucks air from the top of the FFU, keeps dust particles in the air filter below the fan, and then conveys the filtered clean air to a clean workshop from the bottom. Traditional FFU fan filter unit has one section longer space for guaranteeing the amount of wind degree of consistency that air filter received, empty between centrifugal fan and air cleaner usually to the air current can be via centrifugal fan department gradually spread to the air cleaner plane on, guarantees that air cleaner can comparatively even receipt and filtration air current.

Above-mentioned current FFU is great in order to guarantee to air cleaner uniform air supply, holistic vertical thickness, and the floor height requirement in the house of clean room is very strict. For some height-limited plants, a thin filtering device needs to be designed, and the distance between a centrifugal fan and a filter is usually shortened to realize the purpose, so that the air supply amount to an air filter in the conventional thin filtering device is uneven, and the filtering effect is poor.

Disclosure of Invention

In order to improve the problem of poor filtering effect caused by uneven air supply to the air filter in the thin filtering device in the prior art,

the application provides a slim FFU fan filter equipment adopts following scheme:

a low profile FFU fan filter apparatus, comprising:

the box body is provided with an air inlet positioned at the top and an air outlet positioned at the bottom;

the centrifugal fan is fixedly arranged at the air inlet of the box body and used for sending airflow into the box body;

the filter is covered and installed at the air outlet of the box body and used for filtering the airflow in the box body and then sending the airflow into the clean room;

the turbulence piece is rotatably arranged in the box body around a vertical axis, and a plurality of stirring plates for stirring airflow are arranged on the turbulence piece;

the quantity of air outlet is a plurality of, every air outlet department one-to-one is provided with one centrifugal fan, centrifugal fan orientation stir the movable plate, vortex piece work is in order to stir the box internal flow direction the air current of filter is even.

Through adopting above-mentioned scheme, the equipartition has a plurality of centrifugal fan in the air inlet department equipartition of box to at the inside vortex piece that is provided with of box, vortex piece rotate and drive stir the board and stir the box internal air current and stir evenly. Among the traditional technical scheme, adopt a powerful centrifugal fan usually, with the air intake department of air current suction box, in order to guarantee the amount of wind degree of consistency that air filter received, empty between centrifugal fan and filter generally has one section longer space to be convenient for the air current can be via centrifugal fan department diffusion gradually to the air cleaner plane on, guarantee that air cleaner can comparatively even receipt and filtration air current. Therefore, in the traditional scheme, the whole filter device is large in thickness in the vertical direction, the requirement on the vertical installation space is high, and the filter device is difficult to adapt to a factory building with limited height. In the technical scheme of the application, a plurality of centrifugal fans with smaller power can be adopted on the premise of not changing the air intake by uniformly distributing the centrifugal fans, so that the vertical space occupied by the centrifugal fans is reduced, and the air is simultaneously fed by the centrifugal fans, so that the air flow in the box body is more uniform; on the other hand, a plurality of stirring boards rotate around vertical axis, can further stir the air current in the box evenly, and the inside air current degree of consistency of the slim filter equipment box of further promotion to guarantee the degree of consistency and the filter effect of receiving wind of air outlet filter.

Optionally, be provided with temperature sensor, heating member and semiconductor refrigeration spare in the box, temperature sensor and heating member and semiconductor refrigeration spare electric connection, temperature sensor detects the interior air current temperature of box after control heating member and the work of semiconductor refrigeration spare in order to adjust the air current temperature.

Through adopting above-mentioned scheme, be provided with temperature sensor, heating member and semiconductor refrigeration spare to adjust the air current temperature in the box. In actual working conditions, the air outlet of the filtering device is communicated with the clean room, the air inlet of the filtering device is connected with the tail end of the air supply system, and the filtering device filters airflow of the air supply system and then directly sends the airflow into the clean room. Because the air flow temperature of the air supply system is different from the temperature in the clean room inevitably, the air supply system is difficult to adapt to some clean rooms with higher temperature requirements and higher precision. Among this application technical scheme, through the temperature of temperature sensor internal gas flow of detection box to through the temperature of heating member and semiconductor refrigeration spare regulation and control air current, thereby the adaptation is in indoor temperature.

Optionally, the semiconductor refrigeration piece includes a main machine and a heat dissipation fin connected to the cold end of the main machine, and a flow guide plate is arranged at the bottom of the heat dissipation fin and is obliquely arranged along the length direction of the heat dissipation fin; an annular flow guide channel which is obliquely arranged is arranged in the box body in a surrounding mode, the low end of the flow guide plate is communicated with the annular flow guide channel, and the low end of the annular flow guide channel is communicated with a water storage tank.

By adopting the scheme, the annular flow guide channel is formed in the box body, and the radiating fins of the semiconductor refrigerating piece are communicated to the annular flow guide channel and the water storage tank. In some technical schemes, in the process that the semiconductor refrigeration device performs refrigeration through the radiating fins, moisture in air flow in the box body can be condensed on the radiating fins and then drips, and the problems of short circuit of parts in the box body and water dripping in a clean room are caused. In the technical scheme, the guide plates are arranged at the bottoms of the radiating fins, and the guide plates which are obliquely arranged can guide water drops condensed on the radiating fins to the annular guide channels; the annular diversion channel is obliquely arranged so that water flows into the water storage tank to be collected.

Optionally, an accommodating chamber is formed inside the stirring plate, water-absorbing particles are filled in the accommodating chamber, a water-absorbing hole communicated with the airflow of the accommodating chamber is formed in the top of the stirring plate in a penetrating manner, and the water-absorbing particles are used for dehumidifying the airflow in the box body; keep away from on the stirring board the one end of vortex piece is provided with water ball, encircle on the box inner wall set up with the spout that annular water conservancy diversion passageway is linked together, water ball slidable install in the spout, the inside cavity of crossing water ball and respectively with the holding chamber with the spout is linked together, moisture in the absorbent particles flows in proper order after crossing water ball, spout, annular water conservancy diversion passageway the storage water tank.

Through adopting above-mentioned scheme, set up the accommodation chamber in stirring the board to fill the granule that absorbs water in the accommodation chamber, thereby dehumidify the air current in the box. In some technical schemes, because the humidity of the air flow in the box body is too high and the temperature is not higher than the temperature in the clean room, the semiconductor refrigerating piece does not work and can not condense and remove the moisture in the air flow, and the moisture with higher humidity enters the room to obviously increase the indoor humidity. In this application technical scheme, in centrifugal fan sent the terminal air current of air supply system into the box, the air current via stir the hole that absorbs water at movable plate top and with the granule contact that absorbs water to the realization is to the dehumidification of air current in the box. And, stir the board and rotate along with the vortex piece, the moisture in the granule that absorbs water can effectively be got rid of the spout gradually under the effect of centrifugal force in to prevent to absorb water in the granule too much.

Optionally, a plurality of horizontally arranged heating rods are fixedly mounted on the spoiler, and a plurality of turns of heating coils are arranged on the heating rods in a winding manner; a first electromagnet and a second electromagnet are mounted on the inner wall of the box body, the polarities of the first electromagnet and the second electromagnet are always opposite, and the first electromagnet, the second electromagnet and the heating rod are located on the same horizontal plane; when the first electromagnet and the second electromagnet work, the heating coil rotates around the spoiler along with the heating rod to generate heat.

Through adopting above-mentioned scheme, set up many heating rods on the vortex piece, set up heating coil on the heating rod for the vortex piece rotates and to driving heating coil cutting magnetic induction line and generate heat. In some solutions, it is common to use a heating device fixedly mounted on the inner wall of the cabinet to heat the air inside the cabinet, and in such solutions, the uniformity of heating is poor. In this application technical scheme, when needing to heat the box inside, control first electro-magnet and the work of second electro-magnet to make heating coil can cut the magnetic induction line and generate heat, and because heating coil moves along with the heating rod all the time, the inside air current of heating box that can be even.

Optionally, a first magnet is fixedly arranged on the inner wall of the air outlet of the box body, a second magnet is fixedly arranged on the side wall of the filter, and the polarities of the first magnet and the second magnet are opposite; the filter is detachably installed at the air outlet of the box body in a sliding mode, the filter cover is installed at the air outlet in a closing mode, and the first magnet and the second magnet are oppositely attracted.

Through adopting above-mentioned scheme, fixed mounting has first magnet on box air outlet inner wall, and fixed mounting has the second magnet on the filter lateral wall, first magnet with the opposite polarity of second magnet just can counterpoint and inhale each other. So that the filter is detachably arranged at the air outlet of the box body in a magnetic attraction manner, and the filter can be conveniently disassembled, replaced and cleaned.

Optionally, an installation rail is arranged at the air inlet of the box body, a filter screen is detachably connected to the installation rail in a sliding manner, the filter screen is located outside the air inlet of the box body, and the filter screen is used for primarily filtering the air flow entering the centrifugal fan.

By adopting the above scheme, the filter screen is detachably arranged on the outer side of the air inlet, and the air flow entering the air inlet of the box body is primarily filtered, so that large impurities in the tail end of the air supply system are prevented from falling into the centrifugal fan.

Optionally, the filter is made of glass fiber, and the filter is of a corrugated plate-shaped structure.

By adopting the scheme, the filter is designed into the corrugated plate-shaped structure, and the filter made of the glass fiber material can effectively filter small-particle dust. And the corrugated plate-shaped filter can effectively increase the contact area with the air flow, thereby improving the filtering effect.

Optionally, a sealing gasket is arranged around the air outlet of the box body, and the sealing gasket is used for being pressed on the keel of the indoor ceiling.

Through adopting above-mentioned scheme, be provided with seal ring in air outlet department. In the operating condition, the whole weight of this filter equipment is great, and the box can be through the weight of self with seal ring pressfitting on the fossil fragments of ceiling to can realize convenient dismouting.

Optionally, the air purifier further comprises an ionization grid plate, the ionization grid plate is covered and installed outside the air outlet of the box body, and the ionization grid plate is used for ionizing air to generate electrostatic adsorption dust.

Through adopting above-mentioned scheme, be provided with ionization grid plate in the air outlet outside, ionization grid plate work is with the dust in with air ionization and adsorption air current to further reduce the dust that gets into the toilet, among the operating condition, the filter has got rid of most dust, and only few dust granule can be adsorbed by ionization grid plate, and the user is with its manual wiping get rid of can.

To sum up, this application includes at least following beneficial technological effect:

1. a plurality of centrifugal fans are evenly distributed at the air inlet of the box body, a turbulence piece is arranged inside the box body, and the turbulence piece rotates to drive the stirring plate to uniformly stir the air flow in the box body. Among the traditional technical scheme, adopt a powerful centrifugal fan usually, with the air intake department of air current suction box, in order to guarantee the amount of wind degree of consistency that air filter received, empty between centrifugal fan and filter generally has one section longer space to be convenient for the air current can be via centrifugal fan department diffusion gradually to the air cleaner plane on, guarantee that air cleaner can comparatively even receipt and filtration air current. Therefore, in the traditional scheme, the whole filter device is large in thickness in the vertical direction, the requirement on the vertical installation space is high, and the filter device is difficult to adapt to a factory building with limited height. In the technical scheme, a plurality of centrifugal fans are uniformly distributed, and a plurality of centrifugal fans with smaller power can be adopted on the premise of not changing the air inlet amount, so that the vertical space occupied by the centrifugal fans is reduced, and air is simultaneously fed by the plurality of fans, so that the air flow in the box body is more uniform; on the other hand, the stirring plates rotate around the vertical axis, so that airflow in the box body can be further stirred uniformly, and the uniformity of airflow in the thin filtering device box body is further improved, so that the wind receiving uniformity and the filtering effect of the air outlet filter are ensured;

2. an accommodating chamber is formed in the stirring plate, and water absorption particles are filled in the accommodating chamber, so that the air flow in the box body is dehumidified. In some technical schemes, because the air current humidity in the box is too high, and the temperature is not higher than the temperature in the clean room, lead to the semiconductor refrigeration spare not work and can't get rid of the moisture condensation in the air current, the higher moisture of humidity gets into indoor and leads to indoor humidity to obviously rise. Among this application technical scheme, in centrifugal fan sent the terminal air current of air supply system into the box, the air current via stir the hole that absorbs water at movable plate top and with the granule contact that absorbs water to the realization is to the dehumidification of the interior air current of box. Moreover, the stirring plate rotates along with the spoiler, and water in the water absorption particles can be effectively and gradually thrown into the chute under the action of centrifugal force, so that excessive water in the water absorption particles is prevented;

3. set up many heating rods on the vortex piece, set up heating coil on the heating rod for the vortex piece rotates to can drive heating coil cutting magnetic induction line and generate heat. In some solutions, it is common to use a heating device fixedly mounted on the inner wall of the box to heat the air inside the box, and in such solutions, the heating uniformity is poor. Among this application technical scheme, when needing to heat the box inside, control first electro-magnet and second electro-magnet work to make heating coil can cut the magnetic induction line and generate heat, and because heating coil moves along with the heating rod all the time, can heat the inside air current of box uniformly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a sectional view of the present application for showing the internal structure of the case;

fig. 3 is a cross-sectional view of the semiconductor refrigerating device according to the embodiment of the present application, in which some parts are hidden.

Description of reference numerals:

1. a box body; 11. an air inlet; 12. an air outlet; 13. mounting a plate; 131. a drive motor; 14. mounting a rail; 15. filtering with a screen; 16. ionizing the grid plate; 17. a sealing gasket; 18. a chute; 181. a water passage; 19. an annular flow guide channel; 191. a water storage tank; 192. a water collection hole;

2. a centrifugal fan;

3. a filter; 31. a first magnet; 32. a second magnet; 33. a pull ring;

4. a spoiler; 41. stirring the plate; 411. an accommodating chamber; 412. a water suction hole; 42. passing through a water ball; 421. a first water through hole; 422. a second water through hole;

5. a heating member; 51. a heating rod; 52. a heating coil; 53. a first electromagnet; 54. a second electromagnet;

6. a semiconductor refrigerating member; 61. a host; 62. a heat dissipating fin; 621. a baffle;

7. a temperature sensor.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses slim FFU fan filter equipment.

Referring to fig. 1 and 2, a low profile FFU fan filter assembly includes: the box body 1 is provided with an air inlet 11 at the top and an air outlet 12 at the bottom, the number of the air inlets 11 is multiple, and each air inlet 11 is fixedly provided with one centrifugal fan 2 in one-to-one correspondence to send airflow into the box body 1. The filter 3 is covered and arranged at the air outlet 12 of the box body 1 so as to filter the airflow in the box body 1 and send the airflow into a clean room; vortex piece 4 rotates around vertical axis and installs in box 1, and vortex piece 4 is improved level and is provided with the stirring board 41 that the polylith is used for stirring the air current, and centrifugal fan 2 stirs board 41 towards, and vortex piece 4 rotates work and drives and stir board 41 work to stir the air current stirring of filter 3 in with box 1 evenly.

Referring to fig. 2 and 3, an installation plate 13 is covered at the air inlet 11 of the box body 1, and a driving motor 131 in transmission connection with the spoiler 4 is further fixedly arranged on the installation plate 13; a plurality of centrifugal fans 2 are arranged on the mounting plate 13 in a penetrating manner, the air inlet ends in the centrifugal fans 2 are positioned outside the air inlets 11 of the box body 1, and the air outlets 12 of the centrifugal fans 2 are positioned inside the air inlets 11 of the box body 1. Specifically, the number of the centrifugal fans 2 is 8, and the 8 centrifugal fans 2 are evenly distributed on the mounting plate 13. An installation rail 14 is convexly arranged outside the air inlet 11, and a filter screen 15 is detachably installed on the installation rail 14 in a sliding manner, which is not described herein; it is worth mentioning that the filtering aperture of the filter screen 15 is larger than that of the filter 3, and the filter screen 15 is used for preliminarily filtering the airflow entering the centrifugal fan 2 and preventing larger impurities from falling into the centrifugal fan 2.

Referring to fig. 2 and 3, the filter 3 is made of glass fiber and has a corrugated plate-shaped structure, specifically, a first magnet 31 is fixedly disposed on an inner wall of the air outlet 12 of the box 1, a second magnet 32 is fixedly disposed on a side wall of the filter 3, and polarities of the first magnet 31 and the second magnet 32 are opposite; the filter 3 is detachably slidably mounted at the air outlet 12 of the box body 1, and when the filter 3 is covered and mounted at the air outlet 12, the first magnet 31 and the second magnet 32 are oppositely attracted. A pull ring 33 is fixedly mounted on the side wall of the filter 3 far away from the first magnet 31, and a user can slide the filter 3 horizontally out of the box body 1 through the pull ring 33.

Referring to fig. 2 and 3, an ionization grid plate 16 is further installed outside the air outlet 12 of the box body 1 in a covering manner, the ionization grid plate 16 is installed outside the air outlet 12 of the box body 1 in a covering manner, specifically, the ionization grid plate 16 is located below the filter 3, the ionization grid plate 16 is electrically connected with the control board, and the ionization grid plate 16 works to ionize air and adsorb dust in air flow, so that dust entering a clean room is further reduced. It should be noted that, in an actual working condition, the filter 3 already removes most of the dust, only a few dust particles will be adsorbed by the ionization grid plate 16, and the user only needs to wipe and remove the dust particles manually, which is not described herein again. It is worth mentioning that, 1 air outlet 12 of box encircles and is provided with seal ring 17, and is specific, and this seal ring 17 fixed mounting is in 1 bottom of box, and seal ring 17 is the neutral silica gel material, and in the operating condition, filter equipment passes through self weight with seal ring 17 pressfitting on the fossil fragments of indoor ceiling to convenient realization filter equipment and the sealed effect between the ceiling fossil fragments.

Referring to fig. 2 and 3, a temperature sensor 7, a heating element 5 and a semiconductor refrigerating element 6 are arranged in the box body 1, the temperature sensor 7 is electrically connected with the heating element 5 and the semiconductor refrigerating element 6, and the temperature sensor 7 controls the heating element 5 and the semiconductor refrigerating element 6 to work to adjust the temperature of the airflow after detecting the temperature of the airflow in the box body 1. In actual working conditions, still be provided with control panel (not shown in the figure) and indoor thermometer (not shown in the figure) in the box 1, the control panel is coupled with temperature sensor 7, heating member 5 and semiconductor refrigeration spare 6, and temperature sensor 7 sends first temperature signal to the control panel, and indoor thermometer sends the second temperature signal to the control panel, and the control panel receives first temperature signal and second temperature signal and compares, and control panel control heating member 5 and semiconductor refrigeration spare 6 work and adjust the air current temperature to be equal with indoor temperature.

Referring to fig. 2 and 3, the heating element 5 includes a plurality of heating rods 51 fixedly mounted on the spoiler 4, the heating rods 51 are horizontally and fixedly mounted on the spoiler 4 and located inside the air inlet 11, and a plurality of closed heating coils 52 are arranged on the heating rods 51 in a winding manner; a first electromagnet 53 and a second electromagnet 54 are installed on the inner wall of the box body 1, the first electromagnet 53 and the second electromagnet 54 are always opposite in polarity, and the first electromagnet 53, the second electromagnet 54 and the heating rod 51 are located on the same horizontal plane; when the first electromagnet 53 and the second electromagnet 54 are operated, the heating coil 52 generates heat as the heating rod 51 rotates around the spoiler 4. In the embodiment of the present application, the box body 1 is a hollow cylindrical structure, and the first electromagnet 53 and the second electromagnet 54 are both electrically connected to the control board and are respectively located on two opposite sides of the inner wall of the box body 1. In actual conditions, when the heating element 5 needs to work and generate heat, the control board controls the first electromagnet 53 and the second electromagnet 54 to work, so that the heating rod 51 rotates around the spoiler 4, and the heating coil 52 cuts the magnetic induction lines and generates heat, thereby uniformly heating the air flow in the box body 1.

Referring to fig. 2 and 3, the stirring plate 41 is fixedly installed at the bottom of the spoiler 4, and the spoiler 4 rotates around a vertical axis to drive the stirring plate 41 to rotate. The stirring plate 41 is provided with an accommodating chamber 411 inside, the accommodating chamber 411 is filled with water-absorbing particles (not shown in the figure), the top of the stirring plate 41 is provided with a water-absorbing hole 412 communicated with the airflow of the accommodating chamber 411 in a penetrating manner, and the water-absorbing particles are used for dehumidifying the airflow in the box body 1. It should be noted that the diameter of the water-absorbing particles is larger than the diameter of the water-absorbing holes 412, so that the water-absorbing particles are always filled in the accommodating chamber 411.

Referring to fig. 2 and 3, a water passing ball 42 is disposed at one end of the stirring plate 41 away from the spoiler 4, a sliding groove 18 communicated with the annular flow guide channel 19 is disposed on the inner wall of the box body 1 in a surrounding manner, the sliding groove 18 is a semi-spherical groove adapted to the shape of the water passing ball 42, the water passing ball 42 is slidably mounted in the sliding groove 18, and when the spoiler 4 works, the water passing ball 42 slides in the sliding groove 18. The inside cavity of crossing water ball 42 and being linked together with accommodation chamber 411 and spout 18 respectively, it is specific, cross and be linked together through first water hole 421 between water ball 42 and the accommodation chamber 411, cross and be linked together through second water hole 422 between water ball 42 and the spout 18, the diameter in first water hole 421 is less than the diameter of the granule that absorbs water to make the granule that absorbs water can't get into through water ball 42 from first water hole 421. It is worth mentioning that when the agitating plate 41 rotates about the vertical axis, the water in the water-absorbing particles flows into the water ball 42 and the chute 18 by the centrifugal force.

Referring to fig. 2 and 3, an annular flow guide channel 19 which is obliquely arranged relative to the horizontal plane is arranged around the inside of the tank 1, and a water storage tank 191 is communicated with the low end of the annular flow guide channel 19. A plurality of water passing channels 181 are vertically formed in the bottom of the sliding groove 18, and two ends of each water passing channel 181 are respectively communicated with the sliding groove 18 and the annular flow guide channel 19. Specifically, the water storage tank 191 is fixedly installed on the outer side wall of the tank body 1, the annular flow guide channel 19 is arranged inside the side wall of the tank body 1, a water collecting hole 192 communicated with the annular flow guide channel 19 is further formed in the upper side wall of the tank body 1 in a penetrating mode, the water collecting hole 192 is communicated with the water storage tank 191, and moisture in the water absorbing particles flows into the water storage tank 191 after sequentially passing through the water passing ball 42, the sliding groove 18 and the annular flow guide channel 19.

Referring to fig. 2 and 3, the semiconductor cooling member 6 includes a main body 61 having a cold end and a hot end, and a plurality of heat radiating fins 62, the hot end of the main body 61 being located outside the case 1, and the cold end of the main body 61 being connected to the heat radiating fins 62. The bottom of the heat dissipation fin 62 is provided with a guide plate 621, the guide plate 621 is arranged along the length direction inclination of the heat dissipation fin 62, in the actual working condition, the inclination angle of the heat dissipation fin 62 and the guide plate 621 is consistent, and the low end of the guide plate 621 is communicated with the annular flow guide channel 19. Specifically, the lower end of the heat dissipating fin 62 is fixedly installed at the water collecting hole 192 of the box body 1, and water drops condensed on the heat dissipating fin 62 flow into the water collecting hole 192 through the guide plate 621 and then flow into the water storage tank 191, thereby further reducing the moisture content of the air flow in the box body 1. In actual working conditions, the bottom of the filtering device may also be provided with a humidifying device to humidify the air flow flowing out of the air outlet 12 to adapt to the indoor humidity, which is not described herein.

The implementation principle of the thin FFU fan filtering device in the embodiment of the application is as follows: the centrifugal fans 2 are uniformly distributed at the air inlet 11 of the box body 1, and a plurality of centrifugal fans 2 with smaller power can be adopted on the premise of not changing the air inlet amount, so that the vertical space occupied by the centrifugal fans 2 is reduced, and the air is simultaneously fed by the fans, so that the air flow in the box body 1 is more uniform; on the other hand, a plurality of stirring board 41 rotate around vertical axis, can be further stir the air current in the box 1 evenly, further promote the inside air current degree of consistency of slim filter equipment box 1 to guarantee the wind receiving degree of consistency and the filter effect of air outlet 12 filter 3.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A thin FFU fan filter device, comprising:

the box body (1) is provided with an air inlet (11) positioned at the top and an air outlet (12) positioned at the bottom;

the centrifugal fan (2) is fixedly arranged at an air inlet (11) of the box body (1) and is used for sending airflow into the box body (1);

the filter (3) is covered and installed at the air outlet (12) of the box body (1) and is used for filtering the airflow in the box body (1) and sending the airflow into the clean room;

the turbulence piece (4) is rotatably arranged in the box body (1) around a vertical axis, and a plurality of stirring plates (41) for stirring airflow are arranged on the turbulence piece (4);

the quantity of air outlet (12) is a plurality of, every air outlet (12) department one-to-one is provided with one centrifugal fan (2), centrifugal fan (2) orientation stir board (41), vortex spare (4) work is in order to stir the air current of box (1) internal flow direction filter (3) evenly.

2. The thin FFU fan filtering device is characterized in that a temperature sensor (7), a heating element (5) and a semiconductor refrigerating element (6) are arranged in the box body (1), the temperature sensor (7) is electrically connected with the heating element (5) and the semiconductor refrigerating element (6), and the temperature sensor (7) controls the heating element (5) and the semiconductor refrigerating element (6) to work to adjust the temperature of the air flow after detecting the temperature of the air flow in the box body (1).

3. The FFU fan filter unit of claim 2, wherein the semiconductor refrigerating part (6) comprises a main machine (61) and a heat radiating fin (62) connected with the cold end of the main machine (61), the bottom of the heat radiating fin (62) is provided with a flow guide plate (621), and the flow guide plate (621) is obliquely arranged along the length direction of the heat radiating fin (62); the water-saving tank is characterized in that an annular flow guide channel (19) which is obliquely arranged is arranged in the tank body (1) in a surrounding mode, the low end of the flow guide plate (621) is communicated with the annular flow guide channel (19), and the low end of the annular flow guide channel (19) is communicated with a water storage tank (191).

4. The thin FFU fan filtering device is characterized in that an accommodating chamber (411) is formed in the stirring plate (41), water absorption particles are filled in the accommodating chamber (411), a water absorption hole (412) communicated with the accommodating chamber (411) is formed in the top of the stirring plate (41) in a penetrating mode, and the water absorption particles are used for dehumidifying airflow in the box body (1); one end, far away from the turbulence piece (4), of the stirring plate (41) is provided with a water ball (42), a sliding groove (18) communicated with the annular flow guide channel (19) is formed in the inner wall of the box body (1) in a surrounding mode, the water ball (42) is installed in the sliding groove (18) in a sliding mode, the water ball (42) is arranged in the hollow cavity and communicated with the accommodating cavity (411) and the sliding groove (18) respectively, and water in the water absorption particles sequentially flows into the water storage tank (191) after passing through the water ball (42), the sliding groove (18) and the annular flow guide channel (19).

5. The thin FFU fan filtering device is characterized in that a plurality of horizontally arranged heating rods (51) are fixedly mounted on the flow disturbing piece (4), and a plurality of turns of heating coils (52) are arranged on the heating rods (51) in a winding manner; a first electromagnet (53) and a second electromagnet (54) are installed on the inner wall of the box body (1), the first electromagnet (53) and the second electromagnet (54) are always opposite in polarity, and the first electromagnet (53), the second electromagnet (54) and the heating rod (51) are located on the same horizontal plane; when the first electromagnet (53) and the second electromagnet (54) work, the heating coil (52) rotates around the spoiler (4) along with the heating rod (51) to generate heat.

6. The FFU fan filtering device in a thin type according to claim 1, wherein a first magnet (31) is fixedly arranged on the inner wall of the box body (1) at the air outlet (12), a second magnet (32) is fixedly arranged on the side wall of the filter (3), and the first magnet (31) and the second magnet (32) have opposite polarities; the filter (3) is detachably and slidably mounted at the air outlet (12) of the box body (1), and when the filter (3) is mounted at the air outlet (12) in a covering manner, the first magnet (31) and the second magnet (32) are oppositely attracted.

7. The thin FFU fan filtering device is characterized in that a mounting rail (14) is arranged at an air inlet (11) of the box body (1), a filter screen (15) is detachably connected to the mounting rail (14) in a sliding mode, the filter screen (15) is located on the outer side of the air inlet (11) of the box body (1), and the filter screen (15) is used for primarily filtering air flow entering the centrifugal fan (2).

8. A low profile FFU fan filter assembly as claimed in claim 1, wherein said filter (3) is made of fiberglass and said filter (3) is pleated plate-like.

9. The FFU fan filter unit of claim 1, wherein a sealing gasket (17) is arranged around the air outlet (12) of the box body (1), and the sealing gasket (17) is used for being pressed on a keel of an indoor ceiling.

10. The FFU fan filter unit of claim 1 further comprising an ionization grid plate (16), wherein the ionization grid plate (16) is covered and installed outside the air outlet (12) of the box body (1), and the ionization grid plate (16) is used for ionizing air to generate electrostatic adsorption dust.

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