CN108036457A - A kind of building exhausting system with protection branch pipe - Google Patents
A kind of building exhausting system with protection branch pipe Download PDFInfo
- Publication number
- CN108036457A CN108036457A CN201711140521.7A CN201711140521A CN108036457A CN 108036457 A CN108036457 A CN 108036457A CN 201711140521 A CN201711140521 A CN 201711140521A CN 108036457 A CN108036457 A CN 108036457A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- building
- rotating shaft
- hollow rotating
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/04—Air-ducts or air channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/042—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with locking or disconnecting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses a kind of building exhausting system with protection branch pipe, belongs to building ventilation technical field, including ventilation duct, injection apparatus, hollow rotating shaft, bearing, guide frame and protection branch pipe；Ventilation duct extend into basic unit from building top, and ventilation duct connects the protection branch pipe；Injection apparatus has the vacuum chamber of vacuum condition；Vacuum chamber one side is communicated with outlet, and outlet is corresponding with the taper end mouth of collapsible tube；Hollow rotating shaft is fixed by the bearing being fixed in building, and hollow rotating shaft lower inner wall is connected with ventilation pipe outer wall clearance fit；Hollow rotating shaft top is fixedly connected with injection apparatus, and hollow rotating shaft is connected with vacuum chamber；Guide frame is fixedly connected with the top of injection apparatus.The exhausting system utilizes the wind-force source of building top, the unitary space air of building interior is drawn to the air exchange speed of building top, accelerator module space and building external, clever structure, has good economic benefit.
Description
【Technical field】
The present invention relates to building ventilation technical field, and in particular to a kind of building exhausting system with protection branch pipe.
【Background technology】
It is the content that resident extremely pays close attention to for the ventilation effect of building in building field, and designer needs weight
The problem of point considers.And for current urban area, since land resource is in short supply, usually all it is built-up feelings
Condition, and it is not smooth to often lead to ventilation due to mutually blocking between each building high building.In addition, mega structure roof air velocity is fast,
Wind-force is very big, but the ventilation of internal house unit is extremely obstructed.
【The content of the invention】
For above-mentioned there are problem, the present invention provides a kind of building exhausting system with protection branch pipe.
The technical solution used in the present invention is：
A kind of building exhausting system with protection branch pipe, including ventilation duct, injection apparatus, hollow rotating shaft, bearing, guiding
Structure and protection branch pipe；
The ventilation duct extend into basic unit from building top, and each layer of building unit is provided with the ventilation of connection ventilation duct
Branch pipe；Ventilation duct connects the protection branch pipe；The protection branch pipe includes big pipe fitting, small pipe fitting, valve ball and elastic component, big pipe fitting
In smoothing junction with small pipe fitting, big pipe fitting internal diameter is bigger than valve ball diameter, and valve ball diameter is bigger than small pipe fitting internal diameter, and valve ball is in big pipe fitting
Activity, and it is stuck in the junction of big pipe fitting and small pipe fitting；Elastic component one end is fixed in small pipe fitting, and the other end is fixed on valve ball table
Face, valve ball are held by elastic component, and valve ball ball face sealing blocks the small pipe fitting mouth of pipe；Protect the big pipe fitting opening in branch pipe and ventilation
Pipe connects, and small pipe fitting opening is connected with building external air draught；
The injection apparatus includes collapsible tube, outlet and vacuum chamber；The collapsible tube is that mouth of pipe footpath is diminishing
Pipe fitting, collapsible tube is horizontal in the vacuum chamber, and the large port of collapsible tube exposes vacuum chamber；Vacuum chamber one side connects
The outlet is connected with, outlet is corresponding with the taper end mouth of collapsible tube；
The hollow rotating shaft is fixed by the bearing being fixed in building, outside hollow rotating shaft lower inner wall and the ventilation duct
Wall clearance fit connects, and axis rotates hollow rotating shaft around the shaft；Hollow rotating shaft top is fixedly connected with the injection apparatus, and empty
Heart shaft is connected with vacuum chamber；
The guide frame is fixedly connected with the top of the injection apparatus, guide frame includes column and by aerofoil；Stud sides
Face is fixedly connected by aerofoil, by aerofoil plane and column in same plane；Column and hollow rotating shaft on the same axis, and wind-engaging
Plate plane is vertical with collapsible tube large port plane, is stretched by aerofoil to collapsible tube taper end mouth side.
Further, the bore ratio of the large port of the collapsible tube and portlet is (10-15)：1.
Further, the branch vent is provided with pipeline regulating valve.
Further, the hollow rotating shaft holds axis by be fixed in building two and fixes.
Using technical solution of the present invention, there are following advantageous effects：
1. the present invention utilizes the wind-force source of building top, the unitary space air of building interior is drawn to building top,
Accelerator module space and the air exchange speed of building external.
2. the present invention makes full use of the wind-force source of building top, clever structure, has good economic benefit.
3. the protection branch pipe in technical solution of the present invention has boosting to ventilation duct, negative pressure of vacuum in ventilation duct is avoided
It is excessive.When the negative pressure of vacuum in ventilation duct is excessive, protect branch pipe in valve ball promoted, building external air-flow from protection branch pipe
Flow ventilation pipe, ventilation intraductal atmospheric pressure rise, ventilation duct and whole exhausting system are protected；Intraductal atmospheric pressure of divulging information raises,
When the pulling force for protecting the elastic component in branch pipe is more than in ventilation duct with building external draught head to the active force of valve ball, ball valve quilt
Hold, ball valve blocks the small pipe fitting in protection branch pipe again.
【Brief description of the drawings】
Fig. 1 is the floor map of one embodiment of the invention；
Fig. 2 is the dimensional structure diagram of the construction ceiling part shown in Fig. 1；
Fig. 3 is the sectional view shown in Fig. 2；
Fig. 4 is the a-quadrant partial enlarged view shown in Fig. 3；
Fig. 5 is 112 partial enlarged view of filtration shown in Fig. 1；
Fig. 6 is the sectional view of the protection branch pipe 12 shown in Fig. 1；
Wherein：1- ventilation ducts, 11- branch vents, 111- pipeline regulating valves, 112- filtrations, 1121- first
Cavity, the second cavitys of 1122-, 1123- air inlet pipe, 1124- air outlet pipes, 1125- blow-off lines, 12- protection branch pipes,
The big pipe fittings of 121-, 122- small pipe fittings, 123- valve balls, 124- elastic components, 13- bulge loops, 2- injection apparatus, 21- are shunk
Pipe, 22- outlets, 23- vacuum chambers, 3- hollow rotating shafts, 31- concave rings, 4- bearings, 5- guide frames, 51- columns,
52- is by aerofoil, 6- buildings.
【Embodiment】
In order to which those skilled in the art more fully understand the present invention, below according to the more excellent possible embodiments of the present invention
The present invention is described in further detail.It is worth noting that, the present embodiment is not limited to the guarantor of present patent application
Scope is protected, equal change or the modification change completed under all technical spirits prompted in the present invention, should all belong to institute of the present invention
The scope of patent protection covered.
Referring to Fig. 1-6, a kind of building exhausting system with protection branch pipe, including it is ventilation duct 1, injection apparatus 2, hollow
Shaft 3, bearing 4 and guide frame 5.
Such as Fig. 1, the ventilation duct 1 extend into basic unit from the top of building 6, and each layer of building unit is provided with connection ventilation
The branch vent 11 of pipe 1, is provided with pipeline regulating valve 111 on branch vent 11, which, which is used to adjust, divulges information
The ventilation caliber size of branch pipe 11.Filtration 112 is also associated with branch vent 11, which includes first
Chamber 1121 and second chamber 1122 (such as Fig. 5).First chamber 1121 connects to form connected region with 1122 lower part of second chamber,
The connected region bottom can store a little filter medium, such as oil, clear water or filter activity charcoal；In first chamber 1121 or the second
1122 side of chamber is equipped with blow-off line 1125, which is used to discharge the waste material in connected region, blow-off line
Switch valve is provided with 1125.In the present embodiment, the connected region bottom storage clear water.The connection of the top of first chamber 1121
There is air inlet pipe 1123, the second chamber stops up 1122 tops and is communicated with air outlet pipe 1124, and air outlet pipe 1124 connects 11 port of branch vent, into
Tracheae 1123 accesses the air of the unitary spaces such as kitchen, toilet, bedroom, hall.Preferably, the filtration 112 is with thoroughly
Bright material makes, and people can with the naked eye see the filter medium being stored in connected region.
Such as Fig. 3, the injection apparatus 2 includes collapsible tube 21, outlet 22 and vacuum chamber 23.The collapsible tube 21 is pipe
The diminishing pipe fitting of bore, it is preferable that the diameter proportion of large port and taper end mouth is (10-15)：1.Collapsible tube 21 it is horizontal
In the vacuum chamber 23, and the large port of collapsible tube 21 exposes vacuum chamber 23.In the present embodiment, which is
Cylindrical cavity room, all column bottom surfaces are equal with 21 large port diameter of collapsible tube, and collapsible tube 21 is radially housed in cavity along cylindrical cavity
It is indoor.The outlet 22 is communicated with 23 side of vacuum chamber, the taper end mouth of 22 mouth of pipe of outlet and collapsible tube 21
It is corresponding.
The hollow rotating shaft 3 is fixed by the bearing 4 being fixed in building 6,3 lower inner wall of hollow rotating shaft and the ventilation
1 outer wall clearance fit of pipe connects, and axis rotates hollow rotating shaft 3 around the shaft.In order to obtain better seal effect, further,
3 lower inner wall of hollow rotating shaft has concave ring 31, and 1 outer wall of ventilation duct has the bulge loop 13 with the 31 corresponding cooperation of concave ring
(such as Fig. 4)；Or 3 lower inner wall of hollow rotating shaft has bulge loop 13,1 outer wall of ventilation duct tool and the 13 corresponding cooperation of bulge loop
Concave ring 31.Further, hollow rotating shaft 3 is provided with some to corresponding matching with 1 clearance fit coupling part of ventilation duct
Concave ring 31 and bulge loop 13, it is preferable that set quantity be 2 pairs.
In another embodiment, 3 lower part outer wall of hollow rotating shaft is connected with the 1 inner wall clearance fit of ventilation duct, hollow
Axis rotates shaft 3 around the shaft.In order to obtain better seal effect, further, the 3 lower part outer wall of hollow rotating shaft has
Concave ring 31,1 inner wall of ventilation duct have the bulge loop 13 with the 31 corresponding cooperation of concave ring；Or the 3 lower part outer wall of hollow rotating shaft
With bulge loop 13,1 inner wall of ventilation duct has the concave ring 31 with the 13 corresponding cooperation of bulge loop.Further, hollow rotating shaft 3 is with leading to
1 clearance fit coupling part of air hose is provided with some to corresponding matched concave ring 31 and bulge loop 13, it is preferable that set quantity be
2 pairs.
3 top of hollow rotating shaft is fixedly connected with 2 bottom of injection apparatus, and hollow rotating shaft 3 and vacuum chamber 23
It is connected.In the present embodiment, hollow rotating shaft 3 is fixedly connected with 23 bottom of vacuum chamber.
The top of injection apparatus 2 is fixedly connected with the guide frame 5.In the present embodiment, the top of vacuum chamber 23 is solid
Surely the guide frame 5 is connected.Guide frame 5 includes column 51 and is fixedly connected by aerofoil 52,51 side of column by aerofoil 52,
By 52 plane of aerofoil and column 51 in same plane.
Column 51 and hollow rotating shaft 3 are on the same axis, and vertical with 21 large port plane of collapsible tube by 52 plane of aerofoil,
Stretched by aerofoil 52 to 21 taper end mouth side of collapsible tube.
6 top air flows urgency is built, wind-force is big, under the action of guide frame 5,21 large port of collapsible tube of injection apparatus 2
Windward, wind enters from large port in front, flows through the taper end mouth of collapsible tube 21, finally sprays and flows out from outlet 22, so that
Negative pressure of vacuum is formed in vacuum chamber 23.Under the conditions of the negative pressure of vacuum of vacuum chamber 23, the unitary space air inside building 6
Discharge is pumped, so as to accelerate the outside of building 6 and the air exchange speed inside building 6.
The unitary space air of building interior, which mixes, the impurity such as more dust, mist of oil and pernicious gas, especially
Kitchen space.The filtration 112 is connected with 11 port of branch vent, the connected region bottom of filtration 112 is deposited
Put a little filter medium, such as clear water.When the air in kitchen is drawn into the filtration 112, dust, mist of oil or can
Insoluble gas is adsorbed or is dissolved in clear water.Filter medium is replaced at regular intervals, is reached with this to air filtration impurity elimination
The purpose discharged again.Preferably, which makes of transparent material, and people can be inhaled by naked eyes identification filter medium
Attached impurity situation, flexibly and easily replaces filter medium.
In use, state of fastening is in if all of pipeline regulating valve 111, will be produced in ventilation duct 1 very big
Negative pressure of vacuum, this produces pipeline and structure very big destructive power.For this reason, for protective conduit and structure, ventilation duct 1 connects
Branch pipe 12 is protected, which includes big pipe fitting 121, small pipe fitting 122, valve ball 123 and elastic component 124 (such as Fig. 6).Big pipe
Part 121 is in smoothing junction with small pipe fitting 122, and big 121 internal diameter of pipe fitting is bigger than 123 diameter of valve ball, and 123 diameter of valve ball is than small pipe fitting 124
Internal diameter is big, and valve ball 123 is movable in big pipe fitting 121, and is stuck in the junction of big pipe fitting 121 and small pipe fitting 122.Elastic component 124
One end is fixed in small pipe fitting 122, and the other end is fixed on 123 surface of valve ball, and valve ball 123 is held by elastic component 124, valve ball 123
Ball face sealing blocks 122 mouth of pipe of small pipe fitting.In the present embodiment, the elastic component 124 is spring.
The opening of big pipe fitting 121 in protection branch pipe 12 is connected with ventilation duct 1, the opening of small pipe fitting 122 and 6 extraneous airs of building
Airflow connection.In use, it is right more than elastic component 124 to the thrust of valve ball 123 with the draught head outside building 6 in ventilation duct 1
During the pulling force of valve ball 123, valve ball 123 is promoted, and the air-flow outside building 6 is flowed into from the protection branch pipe 12,1 inside gas of ventilation duct
Pressure is raised, which has boosting to ventilation duct 1；When protecting in branch pipe 12 elastic component 124 to valve ball 123
When pulling force is more than in ventilation duct 1 with 6 external pressure differences of building to the active force of valve ball 123, ball valve 123 is held, and ball valve 123 is again
The secondary small pipe fitting 122 blocked in protection branch pipe 12.
Claims (5)
1. it is a kind of with protection branch pipe building exhausting system, it is characterised in that including ventilation duct, injection apparatus, hollow rotating shaft,
Bearing, guide frame and protection branch pipe；
The ventilation duct extend into basic unit from building top, and each layer of building unit is provided with the ventilation branch of connection ventilation duct
Pipe；Ventilation duct connects the protection branch pipe；The protection branch pipe includes big pipe fitting, small pipe fitting, valve ball and elastic component, big pipe fitting with
Small pipe fitting is in smoothing junction, and big pipe fitting internal diameter is bigger than valve ball diameter, and valve ball diameter is bigger than small pipe fitting internal diameter, and valve ball is living in big pipe fitting
It is dynamic, and it is stuck in the junction of big pipe fitting and small pipe fitting；Elastic component one end is fixed in small pipe fitting, and the other end is fixed on valve ball table
Face, valve ball are held by elastic component, and valve ball ball face sealing blocks the small pipe fitting mouth of pipe；Protect the big pipe fitting opening in branch pipe and ventilation
Pipe connects, and small pipe fitting opening is connected with building external air draught；
The injection apparatus includes collapsible tube, outlet and vacuum chamber；The collapsible tube is the diminishing pipe fitting in mouth of pipe footpath,
Collapsible tube is horizontal in the vacuum chamber, and the large port of collapsible tube exposes vacuum chamber；Vacuum chamber one side is communicated with
The outlet, outlet are corresponding with the taper end mouth of collapsible tube；
The hollow rotating shaft is fixed by the bearing being fixed in building, between hollow rotating shaft lower inner wall and the ventilation pipe outer wall
Gap is connected, and axis rotates hollow rotating shaft around the shaft；Hollow rotating shaft top is fixedly connected with the injection apparatus, and hollow turn
Axis is connected with vacuum chamber；
The guide frame is fixedly connected with the top of the injection apparatus, guide frame includes column and by aerofoil；Column side is consolidated
Fixed connection is by aerofoil, by aerofoil plane and column in same plane；Column and hollow rotating shaft on the same axis, and are put down by aerofoil
Face is vertical with collapsible tube large port plane, is stretched by aerofoil to collapsible tube taper end mouth side.
2. a kind of building exhausting system with protection branch pipe as claimed in claim 1, it is characterised in that the collapsible tube
The bore ratio of large port and portlet is (10-15)：1.
A kind of 3. building exhausting system with protection branch pipe as claimed in claim 1, it is characterised in that the branch vent
It is provided with pipeline regulating valve.
A kind of 4. building exhausting system with protection branch pipe as claimed in claim 1, it is characterised in that the hollow rotating shaft
Axis is held by be fixed in building two to fix.
5. it is a kind of with protection branch pipe building exhausting system, it is characterised in that including ventilation duct, injection apparatus, hollow rotating shaft,
Bearing and guide frame；
The ventilation duct extend into basic unit from building top, and each layer of building unit is provided with the ventilation branch of connection ventilation duct
Pipe；Ventilation duct connects the protection branch pipe；The protection branch pipe includes big pipe fitting, small pipe fitting, valve ball and elastic component, big pipe fitting with
Small pipe fitting is in smoothing junction, and big pipe fitting internal diameter is bigger than valve ball diameter, and valve ball diameter is bigger than small pipe fitting internal diameter, and valve ball is living in big pipe fitting
It is dynamic, and it is stuck in the junction of big pipe fitting and small pipe fitting；Elastic component one end is fixed in small pipe fitting, and the other end is fixed on valve ball table
Face, valve ball are held by elastic component, and valve ball ball face sealing blocks the small pipe fitting mouth of pipe；Protect the big pipe fitting opening in branch pipe and ventilation
Pipe connects, and small pipe fitting opening is connected with building external air draught；
The injection apparatus includes collapsible tube, outlet and vacuum chamber；The collapsible tube is the diminishing pipe fitting in mouth of pipe footpath,
Collapsible tube is horizontal in the vacuum chamber, and the large port of collapsible tube exposes vacuum chamber；Vacuum chamber one side is communicated with
The outlet, outlet are corresponding with the taper end mouth of collapsible tube；
The hollow rotating shaft is fixed by the bearing being fixed in building, between hollow rotating shaft lower part outer wall and the ventilation inside pipe wall
Gap is connected, and axis rotates hollow rotating shaft around the shaft；Hollow rotating shaft top is fixedly connected with the injection apparatus, and hollow turn
Axis is connected with vacuum chamber；
The guide frame is fixedly connected with the top of the injection apparatus, guide frame includes column and by aerofoil；Column side is consolidated
Fixed connection is by aerofoil, by aerofoil plane and column in same plane；Column and hollow rotating shaft on the same axis, and are put down by aerofoil
Face is vertical with collapsible tube large port plane, is stretched by aerofoil to collapsible tube taper end mouth side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711140521.7A CN108036457A (en) | 2017-11-16 | 2017-11-16 | A kind of building exhausting system with protection branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711140521.7A CN108036457A (en) | 2017-11-16 | 2017-11-16 | A kind of building exhausting system with protection branch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036457A true CN108036457A (en) | 2018-05-15 |
Family
ID=62094036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711140521.7A Pending CN108036457A (en) | 2017-11-16 | 2017-11-16 | A kind of building exhausting system with protection branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
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| CN201187610Y (en) * | 2008-05-07 | 2009-01-28 | 杨百昌 | Over pressure and negative pressure automatic safety valve |
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| CN202001401U (en) * | 2011-04-14 | 2011-10-05 | 常州常衡德曼粉体集成系统有限公司 | Automatic blockage removing device of wind suction negative pressure system |
| CN202581659U (en) * | 2012-05-28 | 2012-12-05 | 中铁三局集团有限公司 | Building energy saving ventilation device |
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2017
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|---|---|---|---|---|
| CN2566944Y (en) * | 2002-04-19 | 2003-08-20 | 石连照 | Spraying apparatus for regulating air quality of vehicle |
| JP2008286513A (en) * | 2007-04-20 | 2008-11-27 | Shinichi Fujita | Wind power discharge device |
| CN201187610Y (en) * | 2008-05-07 | 2009-01-28 | 杨百昌 | Over pressure and negative pressure automatic safety valve |
| CN101684784A (en) * | 2008-09-28 | 2010-03-31 | 艾清源 | Wind air extractor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
| CN117704544B (en) * | 2024-02-04 | 2024-05-28 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180515 |