CN103629797A - Electric variable-air-volume diffuser - Google Patents
Electric variable-air-volume diffuser Download PDFInfo
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- CN103629797A CN103629797A CN201310459585.9A CN201310459585A CN103629797A CN 103629797 A CN103629797 A CN 103629797A CN 201310459585 A CN201310459585 A CN 201310459585A CN 103629797 A CN103629797 A CN 103629797A
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- Prior art keywords
- diffuser
- supporting construction
- flow controller
- air quantity
- variable air
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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
- F24F13/08—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
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
- F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature
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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
- F24F11/76—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 by means responsive to temperature, e.g. bimetal springs
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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
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
Abstract
A variable-air-volume (VAV) diffuser includes a diffuser housing that is formed for coupling to a supply air conduit. The diffuser housing defines a discharging opening for discharge of supply air from the supply air conduit into a room. The VAV diffuser may also include a supporting structure that is affixed to the diffuser housing, and a flow controller for varying the volume of supply air discharged through the discharging opening. The VAV diffuser may further include an electric actuator that is mounted on the supporting structure for moving the flow controller to vary the volume of supply air. The electric actuator may be accessible from room side and removable from the diffuser housing while the diffuser housing is coupled to the supply air conduit, the supporting structure is affixed to the diffuser housing and the flow controller remains within the diffuser housing.
Description
Technical field
The present invention is conventionally whole a kind of for regulating the variable air quantity diffuser of air stream, relates more specifically to a kind of by electric motor driven variable air quantity diffuser, for changing the air feed volume being fed in space.
Background technology
Variable air quantity (VAV) diffuser is for various uses.Wherein modal a kind of purposes is for air feed being transported to the space that need to be conditioned in heating, ventilation and air conditioning (HVAC) system.In response to depending on many factors and the thermic load changing for different time and different significant spatial, VAV diffuser regulates the air feed volume that is discharged into selected space, to realize the regulating effect of expectation.
At the people's such as Smith United States Patent (USP) NO.6, a kind of long-pending example of the air stream through overregulating is disclosed in 176,777, it discloses the self-regulation diffuser for air-conditioning system.The United States Patent (USP) NO.5 that another example is the people such as Dozier, 860,592, it discloses VAV diffuser and the method with independent ventilation assembly.US patent application publication NO.2006/0292977 people such as Caldwell, the people's such as Mrozek United States Patent (USP) NO.6, 997, 799 and the United States Patent (USP) NO.6 of Mccabe, 224, other example of air diffuser or VAV air diffuser is disclosed in 481, wherein, the people's such as Caldwell US patent application publication NO.2006/0292977 discloses electric air diffuser, the people's such as Mrozek United States Patent (USP) NO.6, 997, 799 disclose the air door that comprises stepping motor, the United States Patent (USP) NO.6 of Mccabe, 224, the butterfly blade air door that 481 guide spiro rods that disclose motorized adjustment activate.
Although current VAV diffuser can regulate the volume of air feed, they are at serviceability and/or efficiency and/or condensation (condensation) management aspect existent defect.Inner to safeguard in order to contact, current VAV diffuser conventionally need to be removed or disassemble from HVAC system.For example, in order to repair or change executing agency or motor, current VAV diffuser may need whole VAV diffuser to remove from HVAC system, or need to disassemble most of parts from VAV diffuser.This process has increased downtime and maintenance cost.In addition, current VAV diffuser can not be in the situation that not forming condensation the lower air feed of discharge temperature.
In view of the foregoing, be desirable to provide a kind of improved pressure-control valve or assembly, it can overcome at least some in an above-mentioned difficult problem.
In the disclosed information of background technology part, just for strengthening the understanding for general background of the present invention, it should not be used as confirmation or any type of hint that these information form prior art well known by persons skilled in the art.
Summary of the invention
The application's many aspects relate to provides a kind of variable air quantity (VAV) diffuser, and it has many advantages, comprises higher serviceability, efficiency and/or condensation management.
One aspect of the present invention relates to provides a kind of VAV diffuser, it comprises variable air quantity diffuser, variable air quantity diffuser comprises: diffuser housing, and it is formed for being connected with steam line, and is defined for the air feed from steam line is discharged into indoor floss hole; Be fixed to the supporting construction on described diffuser housing; For changing the flow controller through the air feed volume of floss hole discharge; Thereby and be arranged in supporting construction for driving flow controller motion to change the electric operator of air feed volume, wherein, at diffuser housing, be connected with steam line, supporting construction is fixed on described diffuser housing and when flow controller remains in diffuser housing, can contact from indoor (accessible) electric operator, and can remove electric operator from diffuser housing.
Flow controller can be arranged in supporting construction movably.Flow controller can by hinge be arranged in supporting construction.Flow controller can comprise a plurality of blades, and each blade can movably be arranged in supporting construction.Flow controller can comprise four blades, and each in four blades can be arranged in supporting construction movably.
Electric operator can comprise stepping motor.Electric operator can be arranged on the support being fixed in supporting construction removedly.
Variable air quantity diffuser can also comprise the link assembly that flow controller is connected with electric operator, and wherein link assembly can be arranged so that electric operator drives flow controller to rotate around articulated elements.Variable air quantity diffuser can also comprise a plurality of link assemblies, and each link assembly is connected to electric operator by the respective vanes in a plurality of blades.
Supporting construction can be formed with axis hole and tie rod holes.Motor can comprise thread spindle, and this thread spindle extends upward substantially by the axis hole in supporting construction.Link assembly can comprise: the hub being threaded with the thread spindle of electric operator; First connecting rod, one end of described first connecting rod is fixed on hub and extends through the tie rod holes in supporting construction downwards; Second connecting rod, one end of described second connecting rod is rotatably installed in supporting construction; Third connecting rod, one end of described third connecting rod is rotatably installed on flow controller; With the 4th connecting rod, one end of described the 4th connecting rod is rotatably connected to the other end of first connecting rod, and the other end of described the 4th connecting rod is rotatably connected to the other end of second connecting rod and the other end of third connecting rod.Hub can be operatively attached to the thread spindle of electric operator.Supporting construction can be formed with installing hole, for installing and remove electric operator.
Variable air quantity diffuser can also comprise the guiding piece being fixed in supporting construction, and described guiding piece extends upward substantially, in case the rotation of fluid stopping amount controller.
Electric operator can comprise substantially upwardly extending thread spindle, flow controller can be formed with axis hole and bullport, wherein flow controller can be threaded with the thread spindle of electric operator by axis hole, and can be connected slidably with guiding piece by bullport.
Flow controller can be dish.
Variable air quantity diffuser can also comprise the external plates that is removably attached to supporting construction.One side of external plates can rotatably be hinged on the support being fixed in supporting construction, one side and the relative supporting construction that is detachably fixed to of external plates.
Variable air quantity diffuser can also comprise the separation layer in a part that at least covers flow controller.
Variable air quantity diffuser can also comprise for measuring the sensor of indoor temperature, feed air temperature or gas supply flow.
Diffuser housing can comprise: be formed for the diffuser neck that is connected with steam line; And the diffuser cone that is formed for discharging at a certain angle with respect to downward direction air feed, wherein, diffuser neck and diffuser cone can form, or interconnect.
Another aspect of the present invention relates to a kind of variable air quantity diffuser, and it comprises: diffuser housing, and it is formed for being connected with steam line, and is defined for the supply from steam line is discharged into indoor floss hole; Be fixed to the supporting construction of diffuser housing; Be arranged on actively a plurality of blades in supporting construction, for changing the air feed volume discharging by floss hole; And, the link assembly that a plurality of blades are connected with electric operator, wherein, at diffuser housing, be connected with steam line, supporting construction is fixed to diffuser housing and while being connected to link assembly, can contact electric operator from indoor, and can remove electric operator from diffuser housing.
Another aspect of the present invention relates to a kind of variable air quantity diffuser, and it comprises: diffuser housing, and it is formed for being connected with steam line, and is defined for the air feed from steam line is discharged into indoor floss hole; Be fixed to diffuser housing and be formed with the supporting construction of installing hole; For changing the flow controller through the air feed volume of floss hole discharge; Be fixed to the guiding piece of supporting construction, this guiding piece extends upward substantially, in case the rotation of fluid stopping amount controller; And, by installing hole, be arranged on the electric operator in supporting construction, be used for driving flow controller motion, to change air feed volume, wherein, at diffuser housing, be connected with steam line, when supporting construction is fixed to diffuser housing and flow controller remains in diffuser housing, can contact electric operator from indoor, and can from diffuser housing, remove electric operator by the installing hole of supporting construction.
The further feature that method and apparatus of the present invention has and advantage by the accompanying drawing from contained herein and below the specific embodiment apparent, or these accompanying drawings and below the specific embodiment in elaborate, described the drawings and specific embodiments one are used from explains certain principles of the present invention.
Accompanying drawing explanation
In the accompanying drawings, in some accompanying drawings, similar Reference numeral represents similar parts.There is the similar Reference numeral of different letter suffix to represent the different instances of similar parts.Accompanying drawing normally shows a plurality of embodiment disclosed herein by illustrative mode rather than in the mode limiting.
Figure 1A shows according to the cutaway view of the application's the exemplary VAV diffuser of opening completely;
Figure 1B shows the cutaway view of the exemplary VAV diffuser of opening according to the application's part;
Fig. 1 C shows according to the cutaway view of the application's the exemplary VAV diffuser of closing;
Fig. 2 A shows according to the cutaway view of the application's the exemplary substituting VAV diffuser of opening completely;
Fig. 2 B shows the cutaway view of the exemplary substituting VAV diffuser of opening according to the application's part;
Fig. 2 C shows according to the cutaway view of the application's the exemplary substituting VAV diffuser of closing;
Fig. 2 D show can with the exemplary room air introduction passage of using together with the exemplary VAV diffuser of Fig. 2 A;
Fig. 3 shows according to the prototype of the application's the exemplary VAV diffuser with separation layer;
Fig. 4 A shows the perspective view that is arranged on the exemplary VAV diffuser on ceiling according to the application;
Fig. 4 B shows the perspective view that is arranged on the exemplary VAV diffuser on ceiling according to the application, shows the operation of opening external plates;
Fig. 4 C shows the perspective view that is arranged on the exemplary VAV diffuser on ceiling according to the application, shows the operation of pulling down executing agency.
The specific embodiment
Now will be in detail with reference to a plurality of embodiment of the present invention, the example of these embodiment is shown in the drawings and be described hereinafter.When describe when of the present invention in conjunction with the embodiments, should be understood that, the description of carrying out is not intended in limiting the invention to these exemplary embodiments.On the contrary, the present invention is not only intended to cover these embodiment, but also cover, is included in various replacement schemes, variation, equivalent and other embodiment in the spirit and scope of the present invention that limited by claims.
With reference to accompanying drawing 1A-1C, these accompanying drawings have been described respectively to open completely, part is opened and completely closed exemplary variable air quantity (variable-air-volume:VAV) diffuser 100.VAV diffuser 100 can be fed to the supply air of selecting space for regulating.For the use in commercial building, VAV diffuser 100 is arranged on ceiling conventionally.In various embodiments, exemplary VAV diffuser generally includes diffuser housing 102, and it is formed for being connected with steam line.Diffuser housing 102 limits floss hole, for example, for air feed is discharged into the space (room) that needs heating or air conditioning from steam line.Exemplary VAV diffuser 100 also can comprise the supporting construction 104 that is fixed on diffuser housing 102 and for changing the flow controller 106 through the volume of the air feed of floss hole discharge.In various embodiments, supporting construction 104 can be used as diffuser plate.Exemplary VAV diffuser 100 may further include the electric operator 108 being removably arranged in supporting construction 104.Electric operator 108 provides driving force, with mobile flow controller 106, thus the amount of change air feed.In various embodiments, exemplary VAV diffuser 100 is configured to make the electric operator 108 can be from indoor approaching,, at diffuser housing 102, be connected with steam line, supporting construction 104 is fixed on diffuser housing 102 and flow controller 106 remains on diffuser housing 102 when interior, can approach this electric operator 108 and it is removed from diffuser housing 102 from indoor.
As shown in Figure 1A-1C, supporting construction 104 can be fixed to diffuser housing 102 by machanical fastener, for example, by one or more bolts 114 or rivet and/or other suitable secure component, be fixed to diffuser housing 102.Supporting construction 104 also can be fixed to diffuser housing 102 by other applicable mode, for example, by welding, adhesion or other suitable mode, be fixed to diffuser housing 102.Supporting construction 104 can be circular, polygonal or any other suitable shape.In supporting construction 104, be under rectangle or foursquare certain situation, can use four bolts 114, one of them Bolt to position is near a bight of rectangle or square supporting construction 104.Supporting construction 104 can be formed with axis hole 116 and one or more tie rod holes 118.In addition, supporting construction 104 can be formed with a plurality of holes or the nozzle that allows air feed process, room air is incorporated into this region.This feature and operate in Figure 1A arrow line by a dotted line and represent.
In various embodiments, flow controller 106 is arranged in supporting construction 104 movably.More specifically, flow controller 106 can be pivotally mounted in supporting construction 104 by machanical fastener (for example, by articulated elements 120).Flow controller 106 can be guide plate (vane), blade (blade), trap (flap) etc.Flow controller 106 can comprise a plurality of guide plates, blade or trap or their combination.In supporting construction 104, be that for example, under polygonal (foursquare) certain situation flow controller 106 is preferably mounted near the edge of polygon supporting construction 104.For example, flow controller 106 can comprise four blades, and each blade is all pivotally mounted near an edge of square supporting construction 104.Full open position as shown in Figure 1A and the complete closing position shown in Fig. 1 C can be controlled and be moved to flow controller 106.Any centre position as shown in Figure 1B can be controlled and be moved to flow controller 106 also, in full open position and the complete position between closing position, to change flow or the volume of the air feed of discharge.
Continuation is with reference to Figure 1A-1C, and in various embodiments, electric operator 108 can be arranged in supporting construction 104.Preferably, electric operator 108 can be arranged on the indoor of supporting construction 104 by machanical fastener, make it possible to easily contact and remove electric operator 108.For example, electric operator 108 can removably be fixed on installation portion 122.Can be fastened or be fixed in supporting construction 104 in one end of installation portion 122, for example, by welding.The other end of installation portion 122 can be angled, and have screwed hole, to receive for the screw of electric operator 108 is installed.Installation portion 122 can be support.For stable power-driven executing agency 108 and alleviate vibrations, can use a plurality of installation portions 122 (for example four) that electric operator 108 is installed in supporting construction 104.
In various embodiments, electric operator 108 comprises motor 124 and from the outward extending thread spindle 126 of motor 124.Motor 124 can be stepping motor.For stepping motor, no longer need feedback transducer, because stepping motor can be controlled as one of them place that moves and remain on the step number of decile.When electric operator 108 is installed in supporting construction 104, thread spindle 126 can extend through the axis hole 116 that is formed on supporting construction 104.Preferably, supporting construction 104 and axis hole 116 are arranged so that when VAV diffuser 100 is installed on ceiling, electric operator 108 is located along center line or the central axis A of diffuser housing 102 substantially, and thread spindle 126 extends upward substantially through the axis hole 116 being formed in supporting construction 104.Thread spindle 126 can be connected with flow controller 106 by link assembly.
As example, Figure 1A-1C has depicted the exemplary link assembly 128 that comprises hub 130.In some cases, hub 130 can be formed with screwed hole, and this screwed hole is threaded hub 130 with the thread spindle 126 of electric operator.In other cases, hub 130 can be formed through hole, and the thread spindle 126 of electric operator 108 extends through this through hole.In this case, can use nut 140 to connect the thread spindle 126 of hub 130 and electric operator 108.Nut 140 can for example be fixed by welding on hub 130, or with hub 130 integrally or integrally formed.
Those skilled in the art will recognize that, the structure of the exemplary link assembly 128 of describing in Figure 1A-1C is only exemplary, and not as the restriction of any mode.Exemplary link assembly 128 can not comprise four connecting rods, or can comprise the connecting rod more than four.According to the application, the shape of these connecting rods, size, layout or installation can change.For example, connecting rod can be band, slab, rod, rod, pole or any other suitable shape.Connecting rod can be made by sheet metal, or is formed by plastics or any other suitable material.Those skilled in the art will recognize that, any suitable assembly that flow controller 106He executing agency 108 is linked together is all in the application's scope.
By exemplary link assembly 128， executing agency 108 response thermic loads, flow controller 106 is moved to different positions, to change the air demand that is fed to space or room.For example, in order to open VAV diffuser 100 with the air feed of discharge more volume, executing agency 108 drives thread spindle 126 along a direction rotation, thereby causes hub 130 to move upward along axle 126.Because the first connecting rod 132 of link assembly 128 is fixed on hub 130, so first connecting rod 132 moves upward and upwards pulls the 4th connecting rod 138 together with hub 130.In response to this, move upward, the 4th connecting rod 138 rotations, inwardly pull second connecting rod 134 and third connecting rod 136 simultaneously.As a result, third connecting rod 136 rotates or pulls flow controller 106, makes flow controller 106 away from diffuser housing 102, or particularly, makes flow controller 106 away from the sidewall of diffuser cone 112.In the situation that flow controller 106 is hinged in supporting construction 104 or is hinged on an edge of supporting construction 104, flow controller 106 is around articulated elements 120 rotations.So VAV diffuser 100 is opened, and the air feed of more volume is discharged in space or room.This open operation is shown in Figure 1A.
Similarly, in order to close VAV diffuser 100， executing agency 108, rotate round about thread spindle 126, hub 130 and first connecting rod 132 are moved downward along axle 126.First connecting rod 132 pulls the 4th connecting rod 138 downwards.In response to this downward motion, the 4th connecting rod 138 rotations outwards promote second connecting rod 134 and third connecting rod 136 simultaneously.As a result, third connecting rod 136 rotation or promote flow controller 106, makes flow controller 106 towards diffuser housing 102 or especially towards the sidewall motion of diffuser cone 112, to close VAV diffuser 100.VAV diffuser 100 is similar with opening, if flow controller 106 is hinged in supporting construction 104 or is hinged on an edge of supporting construction 104, flow controller 106 is around articulated elements 120 rotations.So, do not have or only have the seldom air feed of amount to be discharged in space or room.This closed procedure is shown in Fig. 1 C.
In addition, by exemplary link assembly 128， executing agency 108, can flow controller 106 be held in place to any centre position between enable possition and closing position in response to thermic load.According to the initial position of flow controller 106, executing agency 108 can make thread spindle 126 along the direction rotation towards full open position, or along the rightabout rotation towards closed position, until realize the air feed volume of expectation.Figure 1B shows the flow controller 106 that is positioned at centre position.
In various embodiments, exemplary VAV diffuser 100 can comprise a plurality of link assemblies 128, and each link assembly 128 is corresponding to a guide plate or blade.For example, in the situation that flow controller 106 comprises four blades, exemplary VAV diffuser 100 can comprise four link assemblies 128.Each link assembly 128 is corresponding to the blade being rotatably installed in supporting construction 104, and each link assembly 128 moves to different positions to change air demand by corresponding blade.In such structure, supporting construction 104 can be formed with a plurality of tie rod holes 118, for holding each first connecting rod 132.
Turn to now Fig. 2 A-2C, Fig. 2 A-2C has described respectively the optional exemplary VAV diffuser 200 in unlatching, centre and closed position.Similar with exemplary VAV diffuser 100, exemplary VAV diffuser 200 generally includes diffuser housing 102, supporting construction 202, flow controller 204 and electric operator 108.Supporting construction 202 can be fixed to diffuser housing 102.Electric operator 108 can removably be arranged in supporting construction 202, and mobile flow controller 204 is to change the air demand through floss hole discharge.Similar with exemplary VAV controller 100, in various embodiments, exemplary VAV diffuser 200 is arranged so that when diffuser housing 102 is connected to steam line, supporting construction 202 is fixed on diffuser housing 102 and flow controller 204 remains on diffuser housing 102 when interior, can contact from indoor electric operator 108, and electric operator 108 can be removed from diffuser housing 102.
Similar with supporting construction 104, supporting construction 202 can be circular, polygonal or any other applicable shape, can be fixed to diffuser housing 102 in same or analogous mode.Be different from the supporting construction 104 that is formed with axis hole 116 and one or more tie rod holes 118, supporting construction 202 can be formed with installing hole 206, electric operator 108 can tighten in supporting construction 202 by installing hole 206, and can after unscrewing, from supporting construction 202, remove.Preferably, supporting construction 202 and installing hole 206 are arranged so that when VAV diffuser 200 is arranged on ceiling, the basic center line along diffuser housing 102 of electric operator 108 or central axis A location, and thread spindle 126 extends upward substantially.
In various embodiments, flow controller 204 is connected with electric operator 108 movably, or is connected with the thread spindle 126 of electric operator 108.Flow controller 204 can be dish, and it has circle, polygon or any other suitable shape.In some cases, flow controller 204 can be formed with screwed hole, and this screwed hole is threaded connection the thread spindle 126 of flow controller 204 and electric operator 108.In other cases, flow controller 204 can be formed with through hole, and the thread spindle 126 of electric operator 108 extends through this through hole.In this case, can use the thread spindle 126 of nut 140 connection traffic controllers 204 and electric operator 108.Nut 140 can for example be fixed by welding on flow controller 204, or integrally or is integratedly shaped with flow controller 204.Flow controller 204 can be formed with bullport 208.
In various embodiments, exemplary VAV diffuser 200 can also comprise guiding piece 210, and one end of guiding piece 210 is fixed in supporting construction 202, for preventing flow controller 204 rotations.According to the application, the size and dimension of guiding piece 210 can change.For example, guiding piece 210 can be the rod with circle or polygon cross section.Guiding piece 210 extends upward substantially by being formed on the bullport 208 in flow controller 204, and can be connected slidably with flow controller 204.When thread spindle 126 rotation, guiding piece 210 prevents that flow controller 204 from rotating together with thread spindle 126.As a result, flow controller 204 moves up or down along thread spindle 126.
In order to open exemplary VAV diffuser 200， executing agency 108, drive thread spindle 126 along a direction rotation, this drives flow controller 204 downwards away from diffuser neck 110 motions, until it arrives the full open position shown in Fig. 2 A then.In order to close exemplary VAV diffuser 200, executing agency 108 rotates thread spindle 126 in opposite direction, this drives flow controller 204 upwards towards diffuser neck 110 motions then, until it arrives the closing position shown in Fig. 2 C, until its sealing diffuser neck 110.The variation of response thermic load, can control flow controller 204 be positioned at the centre position between full open position and closing position shown in Fig. 2 B, to realize the air demand of expectation.
Exemplary VAV diffuser 100,200 can also comprise: one or more sensors 144, for measuring indoor air temperature, feed air temperature, gas supply flow or other parameter; And control system, it is for the motion of the measured value adjust flux controller based on sensor 144.Sensor 144 and control system can be arranged on inside or the outside of diffuser housing 102.For example, feed air temperature sensor 144 can be arranged in steam line or be arranged in the diffuser neck 110 of diffuser housing 102.Room air temperature sensor 144 can (being for example arranged on the wall in room) mounted externally, and be electrically connected to control system.Room air temperature sensor 144 also can be arranged in indoor air flows path or be arranged in room air introduction passage 212, as shown in Fig. 2 A-2C.
Room air introduction passage 212 is configured to a certain amount of indoor air stream to be incorporated into room air temperature sensor 144 tops, to guarantee accurately to measure indoor air temperature.Room air introduction passage 212 can be arranged in or be configured in diffuser housing 102, supporting construction 104 or other suitable position, as long as room air introduction passage 212 can be incorporated into room air sensor 144 tops.As example, Fig. 2 A-2C has described to be formed on the room air introduction passage 212 in supporting construction 104.In addition, room air introduction passage 212 can be included in any suitable VAV diffuser, for example, be included in the exemplary VAV diffuser 200 shown in the exemplary VAV diffuser 100 shown in Figure 1A and Fig. 2 A.
According to the application, the structure of room air introduction passage 212 can change.As example, Fig. 2 A has described to comprise the room air introduction passage 212 of the one or more intakes that are formed in supporting construction 104.One or more intakes can be arranged so that air feed or primary air (primary air) leave intake to be basically parallel to the direction of supporting construction 104, effectively room air or secondary air (secondary air) are incorporated in this region or are incorporated into various sensors (if any) top thus.
In Fig. 2 D, described another embodiment of room air introduction passage 212.As shown in the figure, room air introduction passage 212 comprises two C shape passage 212a respect to one another and 212b.C shape passage 212a extends to opposite side from a side substantially, and at one end has opening.212b is relatively short for C shape passage, and is positioned near the opening at one end place of C shape passage 212a.The air of introducing is through opening, and flows through sensor (if any).
As shown in the figure, exemplary VAV diffuser 100,200 can also comprise external plates 142.External plates 142 can be attached to supporting construction 104 or diffuser housing 102.In various embodiments, one side of external plates 142 can be rotatably installed in supporting construction 104, for example, by being hinged to or being hooked to the one or more supports 302 that are fixed in supporting construction 104.External plates 142 another sides or relative limit can removably be attached to supporting construction 104, for example, by being fixed on support, hook, the cover in supporting construction 104 or encircling 304.The removable attachment of external plates 142 can be used other mechanism (for example, by magnet or buckle (snap fit)) to realize.
In various embodiments, exemplary VAV diffuser 100,200 can also comprise the separation layer 306 covering in flow controller 106 and/or supporting construction 104.Conventionally, separation layer 306 covers the side in the face of steam line, and along the flow path of air feed of discharge.Separation layer 306 can cover the whole surface of flow controller 106 and/or the whole surface of supporting construction 104.Separation layer 306 also can only cover a part for flow controller 106 and/or a part for supporting construction 104.Separation layer 306 can comprise the absorbing material that absorbs sound, vibrations or condensation.Separation layer 306 also can comprise other material that can eliminate or alleviate other less desirable effect.In some cases, separation layer 306 can comprise foam piece and/or other suitable isolated part.
Conventionally, for the air feed of cooling commercial building be approximately 55 °F or more than.This is because the air feed of lower temperature can produce condensation or the precipitation (precipitation) that VAV diffuser is degenerated.The separation layer that can absorb condensation 306 of utilization in appropriate location, exemplary VAV diffuser 100,200 can be for realizing identical regulating effect by discharging the air feed that a small amount of temperature is lower.By doing like this, exemplary VAV diffuser 100,200 can be energy-conservation, because discharge a small amount of air feed, needs less energy.
With reference now to Fig. 4 A-4C,, Fig. 4 A-4C has described for repairing or change according to the operation of the executing agency of the application's exemplary VAV diffuser.This is an example, and what it showed exemplary VAV diffuser is easy to entering and effortless serviceability.As shown in the figure, remove executing agency and roughly comprise two steps: from supporting construction 104, remove a limit of external plates 142, and pull down or unscrew executing agency 108.By carrying out in reverse order simply this two steps, can change a new executing agency.No matter be remove executing agency or change executing agency, need to not remove exemplary VAV diffuser from ceiling or from steam line.In addition, need to or not disassemble other parts from exemplary VAV diffuser disconnection.Therefore, save the time, reduced cost and do not needed special training.
For the ease of explaining and definition exactly in appending claims, term " on " or D score, " inwardly " or " outwards " etc. these features of location expression of showing in the drawings for the feature of reference example embodiment.
To the aforementioned description of specific exemplary embodiments of the present invention, it is the object for illustration and description.They are not detailed or for limiting the invention to disclosed concrete form, it is evident that, according to above-mentioned instruction, many modifications and distortion are all possible.Select and described some exemplary specific embodiment, to explain certain principles of the present invention and their practical application, make thus those of ordinary skills can implement and utilize the various exemplary specific embodiment of the present invention and their various replacement schemes and deformation program.Protection scope of the present invention is limited by claims and their equivalent.
Claims (22)
1. a variable air quantity diffuser, described variable air quantity diffuser comprises:
Diffuser housing, described diffuser shell body is formed for being connected with steam line, and is defined for the air feed from steam line is discharged into indoor floss hole;
Supporting construction, described supporting construction is fixed on described diffuser housing;
Flow controller, described flow controller is for changing the air feed volume discharging by described floss hole; With
Electric operator, described electric operator is arranged in described supporting construction, for making described flow controller motion, to change air feed volume;
Wherein, at described diffuser housing, be connected with described steam line, when described supporting construction is fixed on described diffuser housing and described flow controller remains in described diffuser housing, can contact from indoor described electric operator, and can remove described electric operator from described diffuser housing.
2. variable air quantity diffuser as claimed in claim 1, wherein, described flow controller can move and be arranged in described supporting construction.
3. variable air quantity diffuser as claimed in claim 1, wherein, described flow controller by hinge be arranged in described supporting construction.
4. variable air quantity diffuser as claimed in claim 1, wherein, described flow controller comprises a plurality of blades, described in each, blade all can move and be arranged in described supporting construction.
5. variable air quantity diffuser as claimed in claim 1, wherein, described flow controller comprises four blades, each in described four blades all can be moved and be arranged in described supporting construction.
6. variable air quantity diffuser as claimed in claim 1, wherein, described electric operator comprises stepping motor.
7. variable air quantity diffuser as claimed in claim 1, wherein, described electric operator can remove rack-mount, and described support is fixed in described supporting construction.
8. variable air quantity diffuser as claimed in claim 3, described variable air quantity diffuser also comprises link assembly, described link assembly is connected to described electric operator by described flow controller, wherein, described link assembly is arranged so that described electric operator drives described flow controller to rotate around described articulated elements.
9. variable air quantity diffuser as claimed in claim 4, described variable air quantity diffuser also comprises a plurality of link assemblies, each link assembly is all connected to the corresponding blade in described a plurality of blades on described electric operator.
10. variable air quantity diffuser as claimed in claim 8, wherein,
Described supporting construction is formed with axis hole and tie rod holes;
Described motor comprises thread spindle, and described thread spindle extends upward substantially by the described axis hole in described supporting construction; And
Described link assembly comprises:
Hub, described hub is threaded with the thread spindle of electric operator;
First connecting rod, one end of described first connecting rod is fixed to described hub, and described first connecting rod extends through the described tie rod holes in described supporting construction downwards;
Second connecting rod, one end of described second connecting rod can be arranged in described supporting construction rotatably;
Third connecting rod, one end of described third connecting rod can be arranged on described flow controller rotatably; And
The 4th connecting rod, one end of described the 4th connecting rod can be connected to the other end of described first connecting rod rotatably, and the other end of described the 4th connecting rod can be connected to the other end of second connecting rod and the other end of third connecting rod rotatably.
11. variable air quantity diffusers as claimed in claim 10, wherein, described hub can be operatively coupled to the described thread spindle of described electric operator.
12. variable air quantity diffusers as claimed in claim 1, wherein, described supporting construction is formed with installing hole, and described installing hole is for installing and remove described electric operator.
13. variable air quantity diffusers as claimed in claim 1, described variable air quantity diffuser also comprises guiding piece, described guiding piece is fixed in described supporting construction, and substantially extends upward, to prevent described flow controller rotation.
14. variable air quantity diffusers as claimed in claim 13, wherein,
Described electric operator comprises substantially upwardly extending thread spindle; And
Described flow controller is formed with axis hole and bullport, and wherein, described flow controller is threaded with the described thread spindle of described electric operator by described axis hole, and can be slidably connected by described bullport and described guiding piece.
15. variable air quantity diffusers as claimed in claim 1, wherein, described flow controller is dish.
16. variable air quantity diffusers as claimed in claim 1, described variable air quantity diffuser also comprises external plates, described external plates can remove and be attached in described supporting construction.
17. variable air quantity diffusers as claimed in claim 16, wherein, one side of described external plates can be hinged on the support being fixed in described supporting construction rotatably, and relative one side of described external plates can be dismantled and is fixed in described supporting construction.
18. variable air quantity diffusers as claimed in claim 1, described variable air quantity diffuser also comprises the separation layer in a part that at least covers described flow controller.
19. variable air quantity diffusers as claimed in claim 1, described variable air quantity diffuser also comprises sensor, described sensor is used for measuring indoor temperature, feed air temperature or gas supply flow.
20. variable air quantity diffusers as claimed in claim 1, wherein, described diffuser housing comprises:
Diffuser neck, described diffuser neck is formed for being connected with described steam line; And
Diffuser cone, described diffuser cone is formed for discharging at a certain angle described air feed with respect to downward direction;
Wherein, described diffuser neck and described diffuser cone form or interconnect.
21. 1 kinds of variable air quantity diffusers, described variable air quantity diffuser comprises:
Diffuser housing, described diffuser shell body is formed for being connected with steam line, and is defined for the air feed from described steam line is discharged into indoor floss hole;
Supporting construction, described supporting construction is fixed on described diffuser housing;
A plurality of blades, described a plurality of blades can move and be arranged in described supporting construction, for changing the volume of the air feed discharging by described floss hole; And
Link assembly, described link assembly is connected to electric operator by described a plurality of blades;
Wherein, at described diffuser housing, be connected with described steam line, described supporting construction is fixed on described diffuser housing and while being connected to described link assembly, can contact from indoor described electric operator, and can remove described electric operator from described diffuser housing.
22. 1 kinds of variable air quantity diffusers, described variable air quantity diffuser comprises:
Diffuser housing, described diffuser shell body is formed for being connected with steam line, and is defined for the air feed from described steam line is discharged into indoor floss hole;
Supporting construction, described supporting construction is fixed on described diffuser housing, and is formed with installing hole;
Flow controller, described flow controller is for changing the air feed volume discharging by described floss hole;
Guiding piece, described guiding piece is fixed in described supporting construction, and substantially extends upward, to prevent described flow controller rotation; And
Electric operator, described electric operator is arranged in described supporting construction by described installing hole, for making described flow controller motion, to change air feed volume;
Wherein, at described diffuser housing, be connected with described steam line, when described supporting construction is fixed on described diffuser housing and described flow controller remains in described diffuser housing, can from indoor, contact described electric operator by the described installing hole of described supporting construction, and can remove described electric operator from described diffuser housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261692532P | 2012-08-23 | 2012-08-23 | |
| US61/692,532 | 2012-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629797A true CN103629797A (en) | 2014-03-12 |
Family
ID=50150418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310459585.9A Pending CN103629797A (en) | 2012-08-23 | 2013-08-23 | Electric variable-air-volume diffuser |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150211764A1 (en) |
| KR (1) | KR20150052103A (en) |
| CN (1) | CN103629797A (en) |
| IN (1) | IN2015KN00713A (en) |
| WO (1) | WO2014032013A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105509275A (en) * | 2014-11-07 | 2016-04-20 | 俞文伟 | Electric wireless remote-control air-supplying opening with variable air volume |
| CN110291343A (en) * | 2017-01-30 | 2019-09-27 | 亿康先达国际集团股份有限公司 | Air diffuser device for draft chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101700775B1 (en) * | 2016-03-22 | 2017-01-31 | 유원엔지니어링(주) | Remote Control and Building Auto Control System for Thermally Powered and Operating Variable Air Volume Diffuser |
| US10670285B2 (en) | 2017-04-20 | 2020-06-02 | Trane International Inc. | Personal comfort variable air volume diffuser |
| KR101984155B1 (en) * | 2017-06-23 | 2019-05-30 | 플로우테크 주식회사 | Variable diffuser |
| TWI679350B (en) * | 2018-12-18 | 2019-12-11 | 摩士智能股份有限公司 | Air circulation device |
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- 2013-08-23 WO PCT/US2013/056483 patent/WO2014032013A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150211764A1 (en) | 2015-07-30 |
| IN2015KN00713A (en) | 2015-07-17 |
| WO2014032013A1 (en) | 2014-02-27 |
| KR20150052103A (en) | 2015-05-13 |
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Application publication date: 20140312 |