CN108679815A - Intelligent balanced ventilation device and method - Google Patents
Intelligent balanced ventilation device and method Download PDFInfo
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- CN108679815A CN108679815A CN201810753344.8A CN201810753344A CN108679815A CN 108679815 A CN108679815 A CN 108679815A CN 201810753344 A CN201810753344 A CN 201810753344A CN 108679815 A CN108679815 A CN 108679815A
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- air
- adjustable
- air outlet
- abat
- vent
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0608—Perforated ducts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of intelligent balanced ventilation device and methods, including the adjustable abat-vent for being set to air supply duct and being set in air supply duct, multiple air outlets are provided on the air supply duct, the adjustable abat-vent is set to air outlet, the adjustable angle of the adjustable abat-vent；Airspeedometer is provided at least one air outlet, airspeedometer connects controller with each adjustable abat-vent, and controller controls the angle of each adjustable abat-vent, to realize balanced ventilation according to the wind speed and wind speed setting value of acquisition.
Description
Technical field
The present invention relates to a kind of intelligent balanced ventilation device and methods.
Background technology
Currently, commonly using two kinds of air supply modes in the big system in metro industry underground station sees attached drawing 1 and attached drawing 2.Attached drawing 1 is outlet air
Mouth is directly installed on header pipe, and attached drawing 2 is that air outlet is mounted on short tube port.
See attached drawing 3, for air in wind Bottomhole pressure, static pressure acts perpendicularly to tube wall.If in the side-wall hole of air hose,
Since there are static pressure differences, air to be flowed out from aperture by perpendicular to the direction of tube wall inside and outside aperture.The stream generated due to static pressure difference
Speed is：
Flow velocity of the air in air hose be：
In formula：
pjFor the static pressure of wind inner air tube, Pa；
pdFor the static pressure of wind inner air tube, Pa；
ρ is atmospheric density；
When air is flowed out from aperture, its actual flow velocity depends on the flow velocity and side that static pressure generates incessantly with going out to flow direction
To also being influenced by velocity in pipes, the actual flow velocity of orifice outflow is aggregate velocity.It will be seen from figure 1 that close to the wind of wind turbine
Mouth air output is small, and the air port air output by proximal end is big.
Angle α between orifice outflow and air hose axis is：
Flow out air quantity in aperture：
In formula：
μ is the discharge coefficient in aperture；
f0For orifice area, m2；
From formula (4) as can be seen that offside hole area f0The balanced ventilation pipe remained unchanged will be such that the air output of each side opening protects
It holds equal, it is necessary to assure the static pressure p of each side openingjIt is equal with discharge coefficient μ；Make to work off one's feeling vent one's spleen the amount of flowing to end holding vertically, it is desirable that go out
Angle α is flowed close to 90 °.
(1) keep each side opening static pressure equal：It is required that the dynamic pressure drop between two side holes is equal to the pressure loss between two side holes.
(2) keep each side opening discharge coefficient equal；Discharge coefficient μ and orifice shapes, go out to flow angle α and aperture outflow air quantity with
The ratio between air quantity is related before aperture.
(3) increase and Liu Jiao.Static pressure and the ratio of dynamic pressure in air hose is bigger, and air-flow goes out to flow angle α also more aperture
Greatly, go out to flow direction close to vertically；Ratio is reduced, and air-flow can be reached to a direction deflection, if even if at this moment each side opening air quantity is equal
Less than the purpose of balanced ventilation.
As seen through the above analysis, mode one cannot ensure that the drop of the dynamic pressure between two side holes is equal between two side holes constantly
The pressure loss, goes out to flow that angle size is also unstable, cannot meet the condition (1) and condition (3) of balanced ventilation；No matter designer is horizontal
It is how brilliant, in a fixed system, all it cannot be guaranteed that the ratio between air quantity is constant before a systems orifice outflow air quantity and aperture,
So mode one can not meet the condition (2) of balanced ventilation.
Although mode two disclosure satisfy that the condition (3) of balanced ventilation, it is not well positioned to meet condition (1) and item equally
Part (2).Though so mode two has improvement for mode one, but balanced ventilation problem cannot be fully solved.
Invention content
The present invention is to solve the above-mentioned problems, it is proposed that a kind of intelligence balanced ventilation device and method, it is right that the present invention passes through
The structure setting of air supply duct, adjustable abat-vent, and to the PID control of abat-vent is adjusted, it can be achieved that big system
The balanced ventilation of middle air supply duct.
To achieve the goals above, the present invention adopts the following technical scheme that：
The first object of the present invention is to provide a kind of intelligent balanced ventilation device, including air supply duct and is set to air-supply
Adjustable abat-vent in pipeline is provided with multiple air outlets, the adjustable abat-vent setting on the air supply duct
Near air outlet, the adjustable angle of the adjustable abat-vent；
Airspeedometer is provided at several air outlets, airspeedometer connects controller, controller with each adjustable abat-vent
According to the wind speed of acquisition and wind speed setting value, the angle of each adjustable abat-vent is controlled, to realize balanced ventilation.
Further, the adjustable abat-vent is set to the lower section of the air flow direction of corresponding air outlet, can stop
Air-flow enables air-flow vertically to be flowed out from air outlet.
Further, the controller drives each adjustable abat-vent by driving device.
Preferably, the driving device can be electric driving mechanism, can automatically be driven according to control instruction adjustable
Abat-vent.
As an implementation, further, each air outlet installs an airspeedometer, the controller by it is each go out
The theoretical wind speed in air port is as Setting signal, using the measured value of each air port airspeedometer as feedback signal, to each air outlet
Wind speed carry out PID adjustings.
As another embodiment, further, air supply duct is divided into multistage pipeline, the identical bits in every section of pipeline
The air outlet at the place of setting is equipped with airspeedometer, and the controller is using the theoretical wind speed of corresponding air outlet as Setting signal, corresponding wind
The measured value of mouth airspeedometer carries out PID adjustings as feedback signal, to the wind speed of air outlet.
Preferably, select the air outlet in every section of pipeline centre position that airspeedometer is installed.
Further, the adjustable abat-vent includes wind shield, rotary shaft and fastener, and the wind shield is set to
In rotary shaft, the fastener connection wind shield and rotary shaft ensure that wind shield is rotated with the rotation of rotary shaft.
Further, the edge of the wind shield is arc.By the design of arc, ensure the mistake flow resistance of wind shield
Power is small, while can also reduce windage and noise.
Further, the wind shield and air port distance are not less than the height of the wind shield, when wind shield rotate to
When parallel with air hose bottom plate, air outlet is not blocked.
Further, the rotary shaft is controlled by controller, and rotation angle is adjustable.
Further, the height of the wind shield is 200mm~250mm.
Further, the rotation angle of the wind shield is flowed out with changing air-flow from air outlet towards direction windward
Flow.
Further, the adjustable abat-vent is set to by pedestal at each air outlet.
The second object of the present invention is to provide a kind of working method based on above-mentioned intelligent balanced ventilation device, utilizes correspondence
The theoretical wind speed of air outlet is as Setting signal, and the measured value of corresponding air port airspeedometer is as feedback signal, to each air outlet
Wind speed carry out PID adjustings, when feedback signal be more than given value when, control the baffle angle of the adjustable abat-vent of corresponding position
Degree reduces, and air output is reduced；When feedback signal is less than given value, the baffle angle of the adjustable abat-vent of corresponding position is controlled
Degree increases, and air output increases.
The operation principle of the present invention：
According to basic aperture air quantity formula L=f0·υd, realizing balanced ventilation, there are two types of modes, first, orifice area and hole
One's intention as revealed in what one says speed all real-time changes reach balanced ventilation by controlling two variables of orifice area and wind speed, and this mode also substantially may be used
To realize balanced ventilation.Another way keeps each air port area and wind speed equal to reach balanced ventilation purpose.It is existing
Technology is to install various regulating devices additional at air outlet, refering to front theory analysis it is found that the air quantity come out from air outlet is big
Small and direction is related with pipe characteristic, and it is passive, local only to do measure in exit, can not fundamentally reach uniform
The purpose of air-supply only changes wind direction to a certain extent.And the present invention then converts passive adjusting in the prior art
Actively to adjust, height of the wind shield in pipeline is changed by rotation and is protected from source to change original pipe characteristic
The air quantity and wind direction at air outlet have been demonstrate,proved, air outlet static pressure can have effectively been adjusted, realize the balanced ventilation of large area.
Compared with prior art, beneficial effects of the present invention are：
1, wind shield according to the present invention is mounted on inside air supply duct, changes wind shield in pipeline by rotation
Highly, to change original pipe characteristic, the air quantity and wind direction from air outlet are ensure that from source, belongs to and actively adjusts.
Static pressure at air outlet is adjusted by rotation wind guard, it is equal to meet each side opening static pressure of balanced ventilation condition (1)；Due to ajutage
In all outlet air mouth-shapeds it is identical, go out to flow angle α close to 90 ° under wind shield effect, while height of baffle plate can be continuously online
Variation, it is easy to ensure that each air outlet outflow the ratio between air quantity and air quantity before air port are adjustable, so meeting the condition of balanced ventilation
(2) and condition (3)；
2, the present invention can improve the outlet air uniformity of air supply duct, the comfort of user be improved, due to supply air system
Optimized, power consumption can be reduced to a certain extent.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is common typical air supply mode one in the prior art.
Fig. 2 is common typical air supply mode two in the prior art.
Fig. 3 is that side opening goes out stream mode figure；
Fig. 4 is a kind of structural schematic diagram of the present invention；
Fig. 5 is another structural schematic diagram of the present invention；
Fig. 6 is adjustable abat-vent scheme of installation；
Fig. 7 is adjustable abat-vent detail drawing；
Wherein, 1, adjustable abat-vent total figure, 2, wind shield, 3, axis, 4, fastener, 5, pedestal, 6, electric device.
Specific implementation mode：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this hair
Bright each component or component structure relationship and the relative of determination, not refer in particular to either component or element in the present invention, cannot understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " shall be understood in a broad sense, and indicate may be a fixed connection,
Can also be to be integrally connected or be detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the present invention as the case may be,
It is not considered as limiting the invention.
As stated in the background art, air supply duct will reach balanced ventilation and need to meet following condition：
(1) keep each side opening static pressure equal：It is required that the dynamic pressure drop between two side holes is equal to the pressure loss between two side holes.
(2) keep each side opening discharge coefficient equal；Discharge coefficient μ and orifice shapes, go out to flow angle α and aperture outflow air quantity with
The ratio between air quantity is related before aperture.
(3) increase and Liu Jiao.Static pressure and the ratio of dynamic pressure in air hose is bigger, and air-flow goes out to flow angle α also more aperture
Greatly, go out to flow direction close to vertically；Ratio is reduced, and air-flow can be reached to a direction deflection, if even if at this moment each side opening air quantity is equal
Less than the purpose of balanced ventilation.
As seen through the above analysis, mode one, as shown in Figure 1, air outlet is directly installed on header pipe, no
It can ensure that the dynamic pressure drop between two side holes is equal to the pressure loss between two side holes constantly, it is also unstable to go out to flow angle size, cannot meet
The condition (1) and condition (3) of balanced ventilation；No matter how brilliant designer's level is, in a fixed system, all cannot be guaranteed
The ratio between air quantity is constant before one systems orifice outflow air quantity and aperture, so mode one can not meet the condition of balanced ventilation
(2)。
Mode two, as shown in Fig. 2, air outlet is mounted on short tube port, although disclosure satisfy that the condition (3) of balanced ventilation,
But condition (1) and condition (2) it are not well positioned to meet equally.So though mode two has improvement for mode one, also
It is that cannot be fully solved balanced ventilation problem.
As shown in figure 4, a kind of intelligence balanced ventilation device, one is installed at several air outlets wherein can be to windward
The adjustable abat-vent of at least 90 ° rotations in face obtains the different different wind of height " interception " that keeps out the wind by rotation wind guard
Amount, while ensuring wind direction always vertical tube wall.The height of wind shield is advisable with 200mm~250mm, too short to be not enough to change wind
To, too it is high can make baffle always be in big angle rotary state.Wind shield is connect with electric device, is rotated to direction windward, with
Guarantee obtains good outlet wind direction.Electric device carries out PID adjustings according to setting value and process values, finally obtains good equal
Even air-supply effect.
The present invention adjusts static pressure at air outlet by adjusting the height of wind shield, meets balanced ventilation condition (1) each side
Hole static pressure is equal；Since all outlet air mouth-shapeds are identical in ajutage, go out to flow angle α close to 90 °, simultaneously under wind shield effect
Height of baffle plate can continuously change online, it is easy to ensure that each air outlet outflow the ratio between air quantity and air quantity before air port are adjustable, institute
To meet the condition (2) and condition (3) of balanced ventilation.
It as a kind of embodiment, can be finely controlled, i.e., each air outlet installs an airspeedometer, can be each
Theoretical wind speed (acquisition the wind turbine total air output L, theoretical wind speed υ=L/ (nf of air outlet0), wherein n is total wind that wind turbine is responsible for
Mouth number, f0For air port area) it is set as the Setting signal of electric device, using the measured value of each air port airspeedometer as feedback letter
Number, the PID for carrying out each air port wind speed is adjusted.When feedback signal is more than given value, baffle angle reduces, and air output is reduced；
Conversely, when feedback signal is less than given value, baffle angle increases, and air output increases, and the air output of each mouth finally tends to set
Value.Since the area in each air port is identical, wind speed is also identical, according to formula：L=f0·υd, the air output in each air port is with regard to phase
Together.
As another embodiment, as shown in figure 5, can be controlled roughly, concrete scheme is that will entirely blow always
Pipe, divide equally becomes multistage air hose as possible, an airspeedometer will be arranged at the air outlet at each air hose same position, in this figure
In, it is centre position (or close to centre position) air outlet (hereinafter referred to as representing air port) one wind speed of installation in every section of air hose
It counts (wind speed in other air ports is identical as air port wind speed is represented on this pipeline section), each theoretical wind speed (acquisition wind for representing air port
Machine total air output L, theoretical wind speed υ=L/ (nf0), wherein n is total air port number that wind turbine is responsible for, f0For air port area) it is set as
The Setting signal of electric device, using each measured value for representing air port airspeedometer as feedback signal, progress each represents air port
The PID of wind speed is adjusted.When feedback signal is more than given value, baffle angle reduces, and air output is reduced；Conversely, feedback signal is low
When given value, baffle angle increases, and air output increases, and the wind speed of the representative air port outlet air of final every section of air hose is identical, can be with
It is identical to be approximately considered all air outlet wind speed, to reach balanced ventilation purpose.
Fig. 6 show the scheme of installation of adjustable abat-vent, and Fig. 7 show adjustable abat-vent detail drawing.It keeps out the wind
Plate 2 uses a block of material bending and molding, and such baffle top camber, overcurrent resistance is small, reduces windage and noise；Wind shield
Height is generally 200mm~250mm；Axis 3 uses rectangular and circular compound section, the position use side being connect with wind shield 2
Shape facilitates the connection of wind shield 2 and axis 3, other positions to use circular cross section, facilitate installation and driving；Wind shield 2 and axis 3 are adopted
It is connected with fastener 4, the two is prevented to be detached from；Entirely adjustable abat-vent has no effect on wind shield 2 mounted on bottom duct
It rotates, wind shield 2 is not less than the height of wind shield 2 with air port distance, when the rotation of wind shield 2 is extremely parallel with air hose bottom plate, no
Block air outlet；The installation in order to axis 3 smaller 100mm than air hose section of 2 section of wind shield；Wind shield 2 and the pedestal 5 of axis 3
It is fixed on air hose；Electric device 6 drives 2 rotations of keeping out the wind by automatically controlled signal.
The present invention is to install additional that abat-vent 1 and PID regulating systems is adjusted on the basis of original air hose designs, and reaches big
The purpose of system balanced ventilation.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of intelligence balanced ventilation device, it is characterized in that：Including air supply duct and it is set to adjustable in air supply duct
Abat-vent is provided with multiple air outlets on the air supply duct, and the adjustable abat-vent is set near air outlet, institute
State the adjustable angle of adjustable abat-vent；
Be provided with airspeedometer at several air outlets, airspeedometer connects controller with each adjustable abat-vent, controller according to
The wind speed of acquisition and wind speed setting value, control the angle of each adjustable abat-vent.
2. a kind of intelligent balanced ventilation device as described in claim 1, it is characterized in that：The adjustable abat-vent is set to
The downstream direction of the air flow direction of corresponding air outlet, can stop air-flow so that air-flow vertically flows out from air outlet.
3. a kind of intelligent balanced ventilation device as described in claim 1, it is characterized in that：The controller is driven by driving device
Move each adjustable abat-vent.
4. a kind of intelligent balanced ventilation device as described in claim 1, it is characterized in that：Each air outlet air quantity is carried out accurate
Control, each air outlet install an airspeedometer, the controller using the theoretical wind speed of each air outlet as Setting signal,
The measured value of each air port airspeedometer carries out PID adjustings as feedback signal, to the wind speed of each air outlet.
5. a kind of intelligent balanced ventilation device as described in claim 1, it is characterized in that：Each air outlet air quantity is obscured
Control, is divided into multistage pipeline, the air outlet in every section of pipeline at same position is equipped with airspeedometer, the control by air supply duct
For device processed using the theoretical wind speed of corresponding air outlet as Setting signal, the measured value of corresponding air port airspeedometer is right as feedback signal
The wind speed of air outlet carries out PID adjustings.
6. a kind of intelligent balanced ventilation device as described in claim 1, it is characterized in that：The adjustable abat-vent includes gear
Aerofoil, rotary shaft and fastener, the wind shield are set in rotary shaft, and the fastener connection wind shield and rotary shaft are protected
Card wind shield is rotated with the rotation of rotary shaft.
7. a kind of intelligent balanced ventilation device as claimed in claim 6, it is characterized in that：The edge of the wind shield is arc
Shape；
Further, the wind shield and air port distance are not less than the height of the wind shield, when wind shield rotate to air hose
When bottom plate is parallel, air outlet is not blocked；
Further, the height of the wind shield is 200mm~250mm.
8. a kind of intelligent balanced ventilation device as claimed in claim 6, it is characterized in that：The rotary shaft is controlled by controller
System, rotation angle is adjustable.
9. a kind of intelligent balanced ventilation device as claimed in claim 6, it is characterized in that：The rotation angle direction of the wind shield
Direction windward, to change the flow that air-flow flows out from air outlet.
10. a kind of working method based on intelligent balanced ventilation device as claimed in any one of claims 1-9 wherein, feature
It is：Using the theoretical wind speed of corresponding air outlet as Setting signal, the measured value of corresponding air port airspeedometer is right as feedback signal
The wind speed of each air outlet carries out PID adjustings, when feedback signal is more than given value, controls the adjustable dress that keeps out the wind of corresponding position
The baffle angle set reduces, and air output is reduced；When feedback signal is less than given value, the adjustable dress that keeps out the wind of corresponding position is controlled
The baffle angle set increases, and air output increases.
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| CN201810753344.8A CN108679815A (en) | 2018-07-10 | 2018-07-10 | Intelligent balanced ventilation device and method |
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| CN111829308A (en) * | 2020-07-24 | 2020-10-27 | 重庆市浙蔬农业科技发展有限公司 | Dry dewatering device of fertilizer |
| CN112665169A (en) * | 2020-12-31 | 2021-04-16 | 浙江纳风净化技术有限公司 | Air volume distribution static pressure box of fresh air system and installation method thereof |
| CN112856666A (en) * | 2021-02-04 | 2021-05-28 | 山东海福德机械有限公司 | Roots blower automatically regulated air supply system |
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