CN102261715A - Air actuation system for multi-storey buildings - Google Patents
Air actuation system for multi-storey buildings Download PDFInfo
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- CN102261715A CN102261715A CN2010102360380A CN201010236038A CN102261715A CN 102261715 A CN102261715 A CN 102261715A CN 2010102360380 A CN2010102360380 A CN 2010102360380A CN 201010236038 A CN201010236038 A CN 201010236038A CN 102261715 A CN102261715 A CN 102261715A
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Abstract
The present invention provides an air actuation system for a multi-storey building comprising: an elevator system provided in the multi-story building, the elevator system including an elevator car and a hoistway in which the elevator car moves up and down; an air inlet provided in any of a plurality of floors of a building and communicating an outside of the building with the hoistway; an air outlet provided in any of a plurality of floors of a building and communicating an interior of the building with the hoistway; and an air handling unit disposed adjacent to and connected to the air inlet, wherein movement of the elevator car causes air outside the multi-storey building to be drawn into the hoistway through the air inlet and the air handling unit and thereafter discharged to the interior of the multi-storey building.
Description
Technical field
The present invention relates to a kind of air actuating system that is used for multi-story structure.
Background technology
In recent years, the air pollution in the city has become social each side question of common concern.The kind of air pollutants comprises a lot, and their form may be the particle of solid shape, also may be gas, or the mixture of these forms exists.More common air pollutants comprise suspended particulates, carbon monoxide, oxysulfide, nitrogen oxide and hydrocarbon etc. in the city, wherein are to be produced by human factor mostly.If airborne amount of pollutants is few, to human body and environment to influence meeting smaller, but increase to danger level when these pollutants, just must try every possible means it is removed in air.
Outdoor air often is subjected to large-scale pollution easily, for example a large amount of industrial discharges, the discharging of the vehicles etc.Yet air pollution has more than and is limited to outdoorly, and smoking, fuel combustion, building material, household goods pollute also can for indoor air.Though the extent of injury of indoor pollutant is often lower, because time of contact is very long, its accumulation contact amount may be very high.In building of today, the indoor pollution factor day by day increases, but the ventilation ability weakens on the contrary because of airtight structural design, and this makes that the concentration of some indoor pollutant may be up to more than ten times of outdoor concentration.Therefore, how indoor air effectively being purified, is the problem that current building trade generally faces.
At present, the common use air-conditioning system of building comes room air is purified.Wherein, outdoor air at first is drawn into, and the purification through air-conditioning system is discharged in the building more then.Yet this type of air-conditioner generally need provide special air delivery passage, but also needs special-purpose power set so that the energy supply to be provided.This causes its cost quite high, safeguards also very trouble simultaneously.
Summary of the invention
Therefore, need a kind of air actuating system, it can be drawn into the building air outside in the building effectively, and air is suitably being handled, after purifying it is being discharged into the inside of building, but does not need the cost input of great number.
In order to address this problem, the present invention provides a kind of air actuating system that is used for multi-story structure on the one hand, it comprises: be arranged on the elevator system in the described multi-story structure, it comprises the hoistway that elevator car and described elevator car move up and down therein; Air intake, it is arranged in any floor in the multi-story structure, and the outside of described building is communicated with described hoistway; Air outlet slit, it is arranged in any floor in the multi-story structure, and the inside of described building is communicated with described hoistway; And air conditioner unit, it is arranged near the of described air intake and links to each other with described air intake.Wherein, the motion of elevator car causes the multi-story structure air outside through air intake and air conditioner unit and be sucked in the hoistway, and is discharged into the inside of multi-story structure afterwards.
In one embodiment, described air actuating system comprises an air intake and an air outlet slit, and they are arranged in the top layer or bottom of multi-story structure simultaneously.Understand easily, this air intake also can be arranged at respectively in the different floors of multi-story structure with this air outlet slit.
In another embodiment, be provided with intake valve and air bleeding valve respectively at air intake and air outlet slit place.When car in hoistway when the first direction that deviates from air intake moves, INO and exhaust valve closure.And when car in hoistway when the second direction opposite with first direction moved, intake valve cuts out and air bleeding valve is opened.
In another embodiment, described air actuating system comprises two air intakes and two air outlet slits, wherein the one deck at multi-story structure is provided with first air intake and first air outlet slit, and is provided with second air intake and second air outlet slit at another layer.In a preferred example, first air intake and first air outlet slit are arranged on the top layer of multi-story structure and second air intake and second air outlet slit are arranged on bottom.When car only has first air intake and second air outlet slit to open when the first direction that deviates from first air intake moves at hoistway, and when moving, the second direction opposite with first direction only have second air intake and first air outlet slit to open at hoistway when car.
An advantage according to air actuating system of the present invention is: utilize the operation of elevator system ready-made in the building to realize aspirating purpose with actuation air, thereby greatly reduce the cost of this air actuating system.
Principle according to Fluid Mechanics Computation can be calculated, and the routine running of existing conventional lift just can form swabbing effect well, makes the building air outside can be drawn into suitable flow velocity in the air conditioner unit to handle.Therefore, do not need existing elevator system is improved.
Simultaneously, because lift moves up and down very frequently at ordinary times, so just suction and the actuating for air provides enough energy.Therefore, do not need for air actuating system according to the present invention provides extra power set, thereby greatly reduce its operating cost.In addition, elevator system itself need carry out periodic maintenance, and therefore the maintenance cost according to air actuating system of the present invention also reduces greatly.
Another advantage of the present invention is: can come the air quality that flows into building is handled, for example purified by air conditioner unit is set, thereby remove airborne most of suspended particulate and nitrogen oxide.Therefore, can improve the interior air quality of building significantly.
The present invention provides a kind of air actuating method on the other hand, and it utilizes air actuating system as indicated above to come to activate at the inside and outside formation air of multi-story structure.
The present invention also provides a kind of air actuating method aspect another, it comprises: two air intakes and two air outlet slits are set in multi-story structure, wherein, top layer at building is provided with first air intake and first air outlet slit respectively, and at the bottom of building second air intake and second air outlet slit is set correspondingly; Vicinity at two air intakes all is provided with the air conditioner unit that links to each other with air intake.
According to air actuating method of the present invention, when elevator car moves downwards in hoistway, only open first air intake and second air outlet slit, make moving downward on the one hand of car that the building air outside is drawn into the zone of the car top in the hoistway through first air intake and first air conditioner unit, oppress the air that is positioned at car below in the hoistway on the other hand and move downward, thereby be discharged to the inside of building via second air outlet slit.When elevator car upwards moves in hoistway, only open second air intake and first air outlet slit, make moving upward on the one hand of car that the building air outside is drawn into the zone of the car below in the hoistway through second air intake and second air conditioner unit, oppress the upward motion of air that is positioned at the car top in the hoistway on the other hand, thereby be discharged to the inside of building via first air outlet slit.
Description of drawings
Fig. 1 is the schematic diagram according to air actuating system of the present invention;
Fig. 2 A and 2B have shown a preferred embodiment according to air actuating system of the present invention;
Fig. 3 A and 3B have shown another preferred embodiment according to air actuating system of the present invention; With
Fig. 4 is the schematic diagram according to the air-water crosspoint in the air actuating system of the present invention.
The specific embodiment
Describe the present invention in detail below with reference to accompanying drawing.
Fig. 1 has shown air actuating system 100 of the present invention, and it comprises the elevator system 10 that is arranged in the multi-story structure 50, and this elevator system 10 comprises that elevator car 2 can move up and down with the hoistway 1 that arrives different floors 6 with car 2 within it.
Top layer at multi-story structure 50 is provided with an air intake 3, and its outside with multi-story structure is communicated with hoistway 1, and therefore, the building air outside can enter in the hoistway 1 by this air intake 3.Simultaneously, also be provided with an air outlet slit 4 at the top layer of multi-story structure 50, it is with the internal communication of hoistway 1 with multi-story structure 50.Therefore, the air in the hoistway 1 can enter into the inside of building by this air outlet slit 4.
Need to prove, though in Fig. 1 for convenience of description for the purpose of and show the top layer that air intake 3 and air outlet slit 4 all are arranged on multi-story structure 50, yet be appreciated that, they also can be separately positioned in other floor of this building, for example all be arranged on a bottom or other a floor, perhaps be separately positioned on different floors.Equally, though in Fig. 1, only show an air intake and an air outlet slit, but those skilled in the art should understand, and a plurality of air intakes and a plurality of air outlet slit can be set in multi-story structure, and the quantity of air intake and air outlet slit does not need to be complementary.
According to the present invention, air intake 3 links to each other with an air conditioner unit 8.Like this, be derived from the building air outside and enter into air conditioner unit 8, thereby handle accordingly, for example remove wherein respiratory suspended particulate, carbon dioxide (CO through air intake 3
2), oxynitrides (NO
x) and VOC pollutant components such as (VOC).In one embodiment, this air conditioner unit 8 preferably includes the air quality purifier.Concrete structure about this air quality purifier will describe in detail with reference to Fig. 3 hereinafter.
In the present invention, elevator car 2 moving up and down in hoistway 1 can be regarded as piston moving up and down in cylinder, that is, car 2 be equivalent to piston and the hoistway 1 that holds car correspondingly as cylinder.Like this, existing elevator system 10 just can play the effect of suction and actuation air as piston effect.
When car 2 when moving, has just formed a kind of swabbing effect along the first direction that deviates from air intake 3 (being downward direction in this embodiment) in hoistway 1.In this case, the building air outside will be sucked in the hoistway 1 via air intake 3.Certainly, these air flow through from air conditioner unit 8 before in entering into hoistway 1, thereby have obtained corresponding processing.That is to say that the air that enters in the hoistway 1 is the air that has purified.When car 2 in hoistway 1 during along the second direction opposite (in this embodiment for upwards direction) motion with first direction, car 2 and for example moves along second direction with the air that piston is equally oppressed in the hoistway 1, make these air be discharged into the inside of building via air outlet slit 4, thereby improved the air quality of interior of building through purifying.
Because the operation of lift every day is very frequent, so it can be fully enters in the hoistway from the external suction air of building, and makes the air in the hoistway be discharged into the inside of building fully.So just, can utilize existing elevator system to make the air inside from the external movement of building to building continually, strengthen the dynamics of air exchange, thereby provide the foundation for the air quality of improving in the building.Because elevator system is existing in the multi-story structure, therefore needn't provide extra power set for this air actuating system.Simultaneously, elevator system itself need carry out periodic maintenance, and therefore the maintenance cost according to air actuating system of the present invention also reduces greatly.
The size of air intake or outlet preferably approximates the 20%-30% of hoistway cross-sectional area greatly, more preferably is 25% of hoistway cross-sectional area, so that the maximizing efficiency of deaeration.Principle according to Fluid Mechanics Computation can be calculated, if accounting for the size of 60% and air intake of hoistway cross-sectional area, the area of elevator car equals 25% of hoistway cross-sectional area, so when car moves with the speed of 2.5 meter per seconds, flow velocity about formed swabbing effect enough makes air with 3.8 meter per seconds is sucked, and this air velocity enough can be come air is carried out good processing by air conditioner unit 8.At present, in the conventional elevator system that generally uses in building, the area of car is usually all greater than 60% of hoistway cross-sectional area.Therefore, air actuating system of the present invention can be utilized the elevator system in the existing multi-story structure fully, and needn't carry out any transformation to this elevator system.This feasible cost according to air actuating system of the present invention reduces greatly.
Because with the piston of elevator car as actuation air, therefore, the air capacity that activated in the hoistway will be proportional with the cross-sectional area of elevator car in air actuating system of the present invention.Under the situation of desirable sealing fully, be the cross-sectional area of elevator car when equaling the hoistway cross-sectional area, optimal air actuation effect can be provided.Therefore, by suitably reducing the spacing between elevator car and the elevator hoistway, just can strengthen the air bleed capability in the building.Can determine whether and to adjust the spacing between existing elevator car and the elevator hoistway by needs as the case may be.
According to a preferred embodiment of the present invention, be provided with intake valve 30 and air bleeding valve 40 respectively, be used to control the flow direction of air at air intake 3 and air outlet slit 4 places.Shown in Fig. 2 A, when car 2 in hoistway 1 during along the first direction that deviates from air intake 3 (on the figure upward to) motion, intake valve 30 is opened and air bleeding valve 40 is closed.Like this, the building air outside can be drawn in the hoistway 1 well.Shown in Fig. 2 B, when car 2 in hoistway 1 when the second direction opposite with first direction (downward direction on the figure) moved, intake valve 30 cuts out and air bleeding valve 40 is opened.Like this, the air in the hoistway 1 can be discharged into the inside of building well.
Understand easily, the opening and closing of intake valve 30 and air bleeding valve 40 can realize by a unshowned control module.The concrete structure that can realize the control module of opening and closing of above-mentioned valve is that the those skilled in the art is known, therefore omits at this for the purpose of saving length.
In addition, in another preferred embodiment, can fan be set, so that strengthen the flowing velocity of air at air intake 3 and/or air outlet slit 4 places.
Fig. 3 A and 3B have shown according to a further advantageous embodiment of the invention.As shown in the figure, the air actuating system 200 of this embodiment comprises two air intakes and two air outlet slits, promptly be arranged on the one deck in the multi-story structure, first air intake 103 and first air outlet slit 104 at for example top layer place, and be arranged on another layer in the multi-story structure, second air intake 113 and the air outlet slit 114 at for example bottom place.Be respectively arranged with first air conditioner unit 108 as indicated above and second air conditioner unit 118 in the vicinity of first air intake 103 and 113 second air intakes.
According to the preferred embodiment, as shown in Figure 3A, when elevator car 102 in hoistway 101 when the first direction that deviates from first air intake 103 promptly moves downward, only open first air intake 103 and second air outlet slit, 114, the first air outlet slits 104 and second air intake 113 is closed this moment.Like this, moving downward of car 102 forms on the one hand swabbing effect, and the building air outside is drawn in the zone of car 102 tops in the hoistway 101 through first air intake 103 and first air conditioner unit 108.On the other hand, the air that is in car 102 belows that also forces in the hoistway 101 that moves downward of car 102 moves downward, and enters into the inside of building through second air outlet slit 114.
Similarly, shown in Fig. 3 B, when elevator car 102 in hoistway 101 when the second direction opposite with first direction promptly moves upward, only open second air intake 113 and first air outlet slit, 104, the first air intakes 103 and second air outlet slit is closed for 114 this moments.Like this, moving downward of car 102 forms on the one hand swabbing effect, and the building air outside is drawn in the zone of car 102 belows in the hoistway 101 through second air intake 113 and second air conditioner unit 118.On the other hand, the moving downward of car 102 also forces the upward motion of air that is in car 102 tops in the hoistway 101, and enters into the inside of building through first air outlet slit 104.
After car 102 moves up and down once respectively, just be full of the air of introducing and handling by first air conditioner unit 108 through first air intake 103 in the zone that is in car 102 tops in the hoistway 101, and also can be full of in the interior zone that is in car 102 belows of hoistway 101 through 113 introducings of second air intake and the air handled by second air conditioner unit 118.Like this, the air that is discharged into interior of building via first air outlet slit 104 and second air outlet slit 114 all is treated clean air, thereby has significantly improved indoor air quality.
As mentioned above, air actuating system 200 according to this preferred embodiment of the invention can be adjusted opening and closing of air outlet slit and inlet in real time according to the motion conditions of lift, make simultaneously car rise and decrement phase between can both aspirate the building air outside effectively and to the treated air of interior of building discharging, this efficient that makes air activate reaches significantly and improves.
Understand easily, the opening and closing of air intake 103,104 and air outlet slit 113,114 all can be respectively realized by above-mentioned intake valve 30 and air bleeding valve 40 and control module.
Fig. 4 has shown an embodiment according to the air quality cleaning system in the air conditioner unit of the present invention.In this embodiment, the air quality cleaning system is an air-water crosspoint 20.This air-water crosspoint 20 is arranged on the air outlet slit place of air actuating system, is used for purifying from the air that building flows out.As shown in the figure, this water-gas crosspoint 20 comprises air inlet port 9, switch room 10, blender 11, liquid pump 12, pipe-line system 13, spray liquid 14, fluid box 15 and air discharge ports 16.Those skilled in the art will readily understand that the air quality cleaning system of other form also can be used in this air conditioner unit.
In one embodiment, can place solid in the switch room 10, so that absorb carbon dioxide in air.At this moment, air-water crosspoint 20 becomes gas-solid crosspoint.
In a preferred embodiment, this air conditioner unit can also have the Detection of Air Quality device, is used for the air quality of being aspirated is monitored.So just can decide the dynamics that strengthens or reduce air cleaning according to the actual mass of institute's suction air.Understand easily, this function is realized by above-mentioned control module equally.
On the other hand, the present invention also provides a kind of air actuating method.According to this method, two air intakes and two air outlet slits are set in multi-story structure, wherein, at the top layer of building first air intake and first air outlet slit are set respectively, and second air intake and second air outlet slit correspondingly are set at the bottom of building.In the vicinity of first and second air intakes aforesaid first and second air conditioner units are set respectively, are used for the air that will discharge building is handled.
According to this air actuating method, when elevator car moves downwards in hoistway, only open first air intake and second air outlet slit, make moving downward on the one hand of car that the building air outside is drawn into the zone of the car top in the hoistway through first air intake and first air conditioner unit, oppress the air that is positioned at car below in the hoistway on the other hand and move downward, thereby be discharged to the inside of building via second air outlet slit.
When elevator car upwards moves in hoistway, only open second air intake and first air outlet slit, make moving upward on the one hand of car that the building air outside is drawn into the zone of the car below in the hoistway through second air intake and second air conditioner unit, oppress the upward motion of air that is positioned at the car top in the hoistway on the other hand, thereby be discharged to the inside of building via first air outlet slit.
Thus, utilize according to air actuating method of the present invention, the building air outside can be drawn into effectively in the elevator hoistway and through corresponding and handle as purify, and is discharged into the inside of building afterwards again.This cause in the building air conditions be improved significantly.
Though invention has been described with reference to preferred embodiment, without departing from the scope of the invention, can carry out various improvement and can replace wherein parts it with equivalent.In addition, under the situation that does not break away from the principle of the invention, also multiple change can be carried out so that particular environment or material are suitable for instruction of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment in the literary composition, but comprises all technical schemes in the scope that falls into claim.
Claims (15)
1. air actuating system that is used for multi-story structure comprises:
Be arranged on the elevator system in the described multi-story structure, it comprises the hoistway that elevator car and described elevator car move up and down therein;
Air intake, it is arranged in any floor in the multi-story structure, and the outside of described building is communicated with described hoistway;
Air outlet slit, it is arranged in any floor in the multi-story structure, and the inside of described building is communicated with described hoistway; And
Air conditioner unit, it is arranged near the of described air intake and links to each other with described air intake,
Wherein, the motion of described car causes the multi-story structure air outside through described air intake and air conditioner unit and be sucked in the described hoistway, and after be discharged into the inside of multi-story structure.
2. air actuating system according to claim 1, it is characterized in that, when described car in described hoistway along deviating from when the first direction of described air intake moves, described air intake is opened and described air outlet slit is closed, and when described car in described hoistway when the second direction opposite with described first direction moved, described air outlet slit is opened and described air intake is closed.
3. air actuating system according to claim 2 is characterized in that the opening/closing of described air intake and air outlet slit is controlled by corresponding valve.
4. according to each described air actuating system in the claim 1 to 3, it is characterized in that described air actuating system comprises an air intake and an air outlet slit, they are arranged in one deck of multi-story structure simultaneously.
5. air actuating system according to claim 4 is characterized in that, described air intake and air outlet slit are arranged on the top layer or the bottom of multi-story structure.
6. according to each described air actuating system in the claim 1 to 3, it is characterized in that described air actuating system comprises an air intake and an air outlet slit, they are arranged at respectively in the different floors of multi-story structure.
7. according to each described air actuating system in the claim 1 to 3, it is characterized in that, described air actuating system comprises two air intakes and two air outlet slits, wherein the one deck at described multi-story structure is provided with first air intake and first air outlet slit, and is provided with second air intake and second air outlet slit at another layer of described multi-story structure.
8. air actuating system according to claim 7 is characterized in that, described first air intake and first air outlet slit are arranged on the top layer of multi-story structure, and described second air intake and second air outlet slit are arranged on the bottom of multi-story structure.
9. according to claim 7 or 8 described air actuating systems, it is characterized in that, open when described car only has described first air intake and second air outlet slit when the first direction that deviates from described first air intake moves in described hoistway, and in described hoistway, when the second direction opposite with described first direction moved, only have described second air intake and first air outlet slit to open when described car.
10. each described air actuating system in requiring according to aforesaid right is characterized in that the cross-sectional area of air intake and air outlet slit all accounts for the 20%-30% of described hoistway cross-sectional area, preferably accounts for 25%.
11., it is characterized in that, also be provided with fan at described air intake and/or air outlet slit place, to strengthen the flowability of air according to each described air actuating system in the aforesaid right requirement.
12., it is characterized in that the air capacity that activated in the described hoistway and the cross-sectional area of described elevator car are proportional according to each described air actuating system in the aforesaid right requirement.
13., it is characterized in that described air conditioner unit comprises the air quality purifier according to each described air actuating system in the aforesaid right requirement.
14. air actuating system according to claim 13 is characterized in that, Gu described air quality purifier comprises water-gas crosspoint or water-crosspoint.
15. air actuating system according to claim 14, it is characterized in that, Gu air fully mixes with water or urea in described water-gas crosspoint or water-crosspoint and passes through a processing region, thereby removes described airborne breathing suspended particulate, carbon dioxide or nitrogen oxide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK09106255A HK1129995A2 (en) | 2009-07-13 | 2009-07-13 | Air actuation system for a multi-level building |
| HK09106255.8 | 2009-07-13 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310214537.3A Division CN103353154B (en) | 2009-07-13 | 2010-07-13 | Air actuation system for multi-storey buildings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261715A true CN102261715A (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310214537.3A Active CN103353154B (en) | 2009-07-13 | 2010-07-13 | Air actuation system for multi-storey buildings |
| CN2010102360380A Pending CN102261715A (en) | 2009-07-13 | 2010-07-13 | Air actuation system for multi-storey buildings |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310214537.3A Active CN103353154B (en) | 2009-07-13 | 2010-07-13 | Air actuation system for multi-storey buildings |
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| CN (2) | CN103353154B (en) |
| HK (1) | HK1129995A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944094A (en) * | 2021-01-29 | 2021-06-11 | 中建五局安装工程有限公司 | Centralized exhaust device for refrigerating room |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HK1130151A2 (en) * | 2009-07-13 | 2009-12-18 | Yau Lee Trademark Services Ltd | Air actuation system for a multi-level building |
| CN106016567B (en) * | 2016-07-08 | 2021-09-24 | 何建兴 | Air conditioning system of urban building |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624665A (en) * | 1992-07-10 | 1994-02-01 | Ohbayashi Corp | Ventilating equipment for building utilizing elevator |
| JP2004360943A (en) * | 2003-06-02 | 2004-12-24 | Sekisui Chem Co Ltd | Air circulation mechanism using elevator shaft |
| CN2720316Y (en) * | 2004-08-13 | 2005-08-24 | 潘晓明 | New-air purifying system for elevator |
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2009
- 2009-07-13 HK HK09106255A patent/HK1129995A2/en not_active IP Right Cessation
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2010
- 2010-07-13 CN CN201310214537.3A patent/CN103353154B/en active Active
- 2010-07-13 CN CN2010102360380A patent/CN102261715A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624665A (en) * | 1992-07-10 | 1994-02-01 | Ohbayashi Corp | Ventilating equipment for building utilizing elevator |
| JP2004360943A (en) * | 2003-06-02 | 2004-12-24 | Sekisui Chem Co Ltd | Air circulation mechanism using elevator shaft |
| CN2720316Y (en) * | 2004-08-13 | 2005-08-24 | 潘晓明 | New-air purifying system for elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944094A (en) * | 2021-01-29 | 2021-06-11 | 中建五局安装工程有限公司 | Centralized exhaust device for refrigerating room |
| CN112944094B (en) * | 2021-01-29 | 2021-10-26 | 中建五局安装工程有限公司 | Centralized exhaust device for refrigerating room |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103353154A (en) | 2013-10-16 |
| CN103353154B (en) | 2016-07-06 |
| HK1129995A2 (en) | 2009-12-11 |
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Application publication date: 20111130 |