CN107120774A - A kind of air inlet system and its installation method for residential housing - Google Patents
A kind of air inlet system and its installation method for residential housing Download PDFInfo
- Publication number
- CN107120774A CN107120774A CN201710533599.9A CN201710533599A CN107120774A CN 107120774 A CN107120774 A CN 107120774A CN 201710533599 A CN201710533599 A CN 201710533599A CN 107120774 A CN107120774 A CN 107120774A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- intake stack
- floor
- inlet system
- air
- 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
Links
- 238000009434 installation Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 82
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Building Environments (AREA)
Abstract
A kind of air inlet system and its installation method for residential housing, belongs to building ventilation field, and the technical essential of the air inlet system is：Including vertically arranged intake stack, the top of the intake stack, which is provided with total air inlet, the pipe shaft of intake stack, is provided with a point air inlet, and air port check-valves is provided with described point of air inlet.The technical essential of the installation method is：Intake stack is vertically run through to the floor of whole building, built-in fitting is set on the floor of each floor, there is angle steel in the surface soldered of intake stack, welded by angle steel with built-in fitting, realize the connection of the floor and intake stack of each floor, a point of air inlet is respectively provided with each floor on intake stack, total air inlet is arranged on to the roof of building.The present invention can supplement fresh air in time, it is ensured that the air quality of premises on the premise of ensureing exhaust equipment normal work and not producing the anti-taste phenomenon of premises to premises.
Description
Technical field：
The invention belongs to building ventilation field, and in particular to a kind of air inlet system and its installation side for residential housing
Method.
Background technology：
What raising and heat preservation energy-saving in Modern Residence due to building materials quality were realized gos deep into, and the seal in room is got over
Come higher, make the space for being internally formed relative closure.When exhaust equipment works in room, arranging for air is not supplemented
Apply, the foul atmosphere resulted in the negative pressure state of Residential environment, draining, discharge duct will be along floor drain, exhaust
Interior is poured into the gap of fan etc., so as to result in the decline of Residential ambient air quality.
In recent years, in order to improve indoor environment, some fresh air conditioner systems have also been applied in a few high-end house, but
Because being applied in the reason such as its system complex, initial cost are big, operation and maintenance cost is high, most ordinary residences.
The content of the invention：
The invention aims to solve the above problems, so provide a kind of air inlet system for residential housing and its
Installation method, it is ensureing exhaust equipment normal work and not in generating chamber on the premise of anti-taste phenomenon, can in time be mended to indoor
Fill fresh air, it is ensured that indoor air quality.
The air inlet system for residential housing of the present invention, the technical scheme used to achieve the above object is：Bag
Include vertically arranged intake stack, the top of the intake stack, which is provided with total air inlet, the pipe shaft of intake stack, to be provided with point
Air inlet.
As a further improvement on the present invention, it is provided with air port check-valves in described point of air inlet.It is arranged such, passes through air port
Check-valves can prevent foul indoor air from entering in intake stack, the fresh air in pollution intake stack.
As a further improvement on the present invention, the top of the intake stack is provided with rainhat in the top of total air inlet.
It is arranged such, prevents rainwater from entering in intake stack by rainhat.
As a further improvement on the present invention, it is provided with air port screen pack in described point of air inlet.It is arranged such, passes through air port
Filter screen filtration falls the impurity such as the dust that is carried in air, it is ensured that the air got in is more fresh.
As a further improvement on the present invention, the edge of described point of air inlet is provided with shutter.It is arranged such, passes through blinds
Window blocks a point air inlet, adds the cleaning and sight of point air inlet.
As a further improvement on the present invention, water is draped over one's shoulders provided with annular in the top of total air inlet on the intake stack
Plate.Be arranged such, can prevent that outer wall of the rainwater along intake stack from flowing into interior of building, the top and intake stack of apron flashing it
Between be provided with rubber washer, and in end gluing sealing.
The installation method of the air inlet system of the present invention, the technical scheme used to achieve the above object is：By air intake
Pipeline vertically runs through the floor of whole building thing, built-in fitting is set on the floor of each floor, in the surface soldered of intake stack
There is angle steel, welded by angle steel with built-in fitting, realize and locate on the connection of the floor and intake stack of each floor, intake stack
In being respectively provided with a point of air inlet in each floor, the top of intake stack forms total air inlet through the roof of building.
As a further improvement on the present invention, between the center of point air inlet and the ground of place floor in each floor
Distance is 0.3~0.8m.It is arranged such, it can be ensured that feed indoor air evenly distributed indoors.
As a further improvement on the present invention, the outside in total air inlet sets sleeve pipe on intake stack, by sleeve pipe
Welded with angle steel, the roof of angle steel and building is attached using expanded anchor bolt.So set on the roof of building
Put total air inlet.
As a further improvement on the present invention, total air inlet keeps more than 5m distances with the exhaust outlet in building.So set
Put, it is to avoid the air for filling into interior by air inlet system is discharged by exhaust outlet, it is to avoid air inlet system and exhaust equipment are mutual when enabling
Interference.
The beneficial effects of the invention are as follows：The present invention is vertical through there is provided intake stack, blast pipe in whole building thing
The top in road forms total air inlet through the roof of building, while a point air inlet is provided with each floor, when interior
Air is after exhaust equipment is discharged, and because the now indoor external world relatively is in negative pressure state, therefore outdoor air can be entered by always automatically
Air port enters in intake stack, then is diverted into by a point air inlet in each floor, and it is room automatically so to realize while exhaust
The function of interior supplement air, and effectively prevent discharge duct and drainage outlet etc. from pouring into foul atmosphere to interior, it is ensured that it is indoor
There is sufficient and ozone.The present invention, in installation, is the floor that intake stack is vertically run through to whole building thing, from
And the house in each floor is filled into fresh air, intake stack is entered by angle steel with default built-in fitting on each floor plate
Row welding, it is achieved thereby that the connection between intake stack and each floor plate, its easy construction, and it is strong with preferably connection
Degree；The sleeve pipe that total air inlet is set by its outside is welded with angle steel, and the roof of angle steel and building passes through expanded anchor bolt
It is attached, so as to realize being stably connected between total air inlet and building roof.According to set by the installation method of the present invention
The intake stack put, the floor damage to roof and each floor is small, and is easy to construction.
Brief description of the drawings：
Fig. 1 is the overall structure diagram of the air inlet system of the present invention；
Fig. 2 is the partial schematic diagram of point air inlet on intake stack；
Fig. 3 be in Fig. 2 A-A to profile；
Fig. 4 is structural representation of the intake stack at floor；
Fig. 5 is structural representation of the intake stack in roof；
Fig. 6 is Fig. 5 partial enlarged drawing；
Shown in figure：1 it is rainhat, 2 be the total air inlet in roof, 3 be vertical intake stack, 4 be a point air inlet, 5 is wind
Make a slip of the tongue filter screen, 6 be air port check-valves, 7 be shutter, 8 be sleeve pipe, 9 be angle steel, 10 be expanded anchor bolt, 11 be built-in fitting, 12 be
Apron flashing.
Embodiment：
Referring to figs. 1 to Fig. 3, the air inlet system for residential housing of the invention, including vertically arranged intake stack 3,
The top of the intake stack 3 is provided with total air inlet 2, and the top of intake stack 3 is provided with rainhat 1 in the top of total air inlet 2,
It is provided with the pipe shaft of intake stack 3 in point air inlet 4, described point of air inlet 4 and is provided with air port check-valves 6, the He of air port screen pack 5
Shutter 7, shutter 7 is arranged on the edge of point air inlet 4, and air port screen pack 5 is arranged on the inner side of shutter 7, and air port is stopped
Valve 6 is returned to be arranged between shutter 7 and air port screen pack 5.In the top of total air inlet 2 provided with annular on the intake stack 3
Apron flashing 12, apron flashing 12 be in rainhat 1 lower section, outer wall of the rainwater along intake stack 3 can be prevented by apron flashing 12
Interior of building is flowed into, rubber washer is provided between the top of apron flashing 12 and intake stack 3, and in end gluing sealing.
When the outside air draft of exhaust equipment, interior is in negative pressure state, and extraneous air enters blast pipe by total air inlet 2
In road 3, then entered in every floor by a point air inlet 4 for each floor, so as to fill into fresh air automatically while air draft.
The draft type of the present invention be the air flow power that is produced by indoor exhaust wind equipment and indoor air pressure difference and from
Divide the passive air intake of air inlet, be a kind of indoor air-changing ventilation equipment of access expansion ventilation, can effectively control room air dirty
Contaminate the propagation and harm of thing, indoor air environment quality can be ensured, and do not consume the energy, i.e., it is economical and practical, and energy-conserving and environment-protective.
Reference picture 4 is to Fig. 6, and the installation method of air inlet system of the invention, is that intake stack 3 is vertically run through into whole building
The floor of thing, built-in fitting 11 is set on the floor of each floor, has angle steel 9 in the surface soldered of intake stack 3, passes through angle steel 9
Welded with built-in fitting 11, realize the floor of each floor and the connection of intake stack 3, the bottom surface of built-in fitting 11 is welded with insertion
Built-in fitting 11, is securely disposed on floor by the coupler body 12 of the L-type in floor by coupler body 12, so strengthen intake stack 3 with
A point of air inlet 4 is respectively provided with each floor on the bonding strength of each floor plate, intake stack 3, by the top of intake stack 3
End is opened wide and through one total air inlet 2 of roof formation of building, sleeve pipe 8 is set in the outside of total air inlet 2, by sleeve pipe 8
Welded with angle steel 9, the roof of angle steel 9 and building is attached using expanded anchor bolt 10.Point air inlet 4 in each floor
The distance between the ground of center and place floor be 0.3~0.8m.The exhaust outlet of total air inlet 2 and the smokejack in building
Keep more than 5m distances.
It should be noted that listed above is only a specific embodiment of the invention.It is clear that the invention is not restricted to
Upper embodiment, can also there is many deformations, and the present invention is no longer illustrated one by one to the technical scheme after Simple transformed, but should
It is interpreted as with the technical scheme is that the core technical scheme that Simple transformed goes out without creative work is sent out by this
It is bright disclosed.
In a word, all changes that one of ordinary skill in the art directly can export or associate from present disclosure
Shape, is considered as protection scope of the present invention.
Claims (10)
1. a kind of air inlet system for residential housing, it is characterised in that：Including vertically arranged intake stack (3), it is described enter
The top of wind pipeline (3) is provided with total air inlet (2), the pipe shaft of intake stack (3) and is provided with a point air inlet (4).
2. a kind of air inlet system for residential housing as claimed in claim 1, it is characterised in that：Described point of air inlet (4)
It is interior to be provided with air port check-valves (6).
3. a kind of air inlet system for residential housing as claimed in claim 1, it is characterised in that：The intake stack (3)
Top in the top of total air inlet (2) be provided with rainhat (1).
4. a kind of air inlet system for residential housing as claimed in claim 1, it is characterised in that：Described point of air inlet (4)
It is interior to be provided with air port screen pack (5).
5. a kind of air inlet system for residential housing as claimed in claim 1, it is characterised in that：The intake stack (3)
On in the top of total air inlet (2) provided with annular apron flashing (12).
6. a kind of air inlet system for residential housing as described in claim 1-5 any one, it is characterised in that：It is described
The edge of air inlet (4) is divided to be provided with shutter (7).
7. a kind of installation method of air inlet system as claimed in claim 6, it is characterised in that：Intake stack (3) is vertically passed through
The floor of whole building thing is worn, built-in fitting (11) is set on the floor of each floor, in the surface soldered angle steel of intake stack (3)
(9) it is, that angle steel (9) and built-in fitting (11) is integrally welded, realize the floor of each floor and the connection of intake stack (3), air intake
A point of air inlet (4) is respectively provided with pipeline (3) in each floor, the top of intake stack (3) passes through the roof of building
Form total air inlet (2).
8. the installation method of air inlet system as claimed in claim 7, it is characterised in that：Point air inlet (4) in each floor
The distance between center and the ground of place floor are 0.3~0.8m.
9. the installation method of air inlet system as claimed in claim 7, it is characterised in that：It is in always to enter on intake stack (3)
The outside in air port (2) sets sleeve pipe (8), and sleeve pipe (8) is welded with angle steel (9), and the roof of angle steel (9) and building is used
Expanded anchor bolt (10) is attached.
10. the installation method of the air inlet system as described in claim 7-9 any one, it is characterised in that：Total air inlet (2)
More than 5m distances are kept with the exhaust outlet in building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533599.9A CN107120774A (en) | 2017-07-03 | 2017-07-03 | A kind of air inlet system and its installation method for residential housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533599.9A CN107120774A (en) | 2017-07-03 | 2017-07-03 | A kind of air inlet system and its installation method for residential housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107120774A true CN107120774A (en) | 2017-09-01 |
Family
ID=59731160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710533599.9A Pending CN107120774A (en) | 2017-07-03 | 2017-07-03 | A kind of air inlet system and its installation method for residential housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120774A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268085A (en) * | 2020-02-27 | 2020-06-12 | 广船国际有限公司 | Ventilation system for ship superstructure and arrangement method thereof |
| CN111456375A (en) * | 2019-12-30 | 2020-07-28 | 中国市政工程中南设计研究总院有限公司 | Precast concrete air shaft structure and construction method thereof |
| CN111594970A (en) * | 2020-05-22 | 2020-08-28 | 广东启源建筑工程设计院有限公司 | Indoor ventilation circulation system of green building |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565895Y (en) * | 2002-09-03 | 2003-08-13 | 程高林 | Common smoke discharge pipeline for residence |
| CN201606575U (en) * | 2009-12-30 | 2010-10-13 | 中建一局集团第二建筑有限公司 | Copper pipe bearing support for super high-rise building |
| CN101928574A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Installing method of dry quenching apparatus |
| CN102374600A (en) * | 2010-08-24 | 2012-03-14 | 冯静 | Natural ventilation method in high rise building and device thereof |
| CN102444265A (en) * | 2011-11-01 | 2012-05-09 | 徐水县兴华铸造有限公司 | Vent-thru-roof (VTR) assembly on roof and method for preventing vent stack from water leakage |
| CN102505833A (en) * | 2011-11-21 | 2012-06-20 | 北京建筑工程学院 | Fresh air exhausting public building ventilating shaft with sensible heat recovering function |
| CN102563216A (en) * | 2011-12-29 | 2012-07-11 | 大连益多管道有限公司 | Fixing bracket of vertical tube |
| CN202419846U (en) * | 2011-10-08 | 2012-09-05 | 中国建筑西北设计研究院有限公司 | Wind-oriented wind-driven natural ventilation air intake device |
| CN203270973U (en) * | 2013-05-31 | 2013-11-06 | 中国建筑第六工程局有限公司 | Air exhaust device of accessible roof |
| CN203475726U (en) * | 2013-08-13 | 2014-03-12 | 叶香雄 | Roof exhaust structure |
| CN104295800A (en) * | 2014-08-27 | 2015-01-21 | 中广核工程有限公司 | Structure and construction method for nuclear power plant heat preservation pipeline to penetrate through stainless steel cover face |
| CN104695608A (en) * | 2015-03-25 | 2015-06-10 | 杭州通达集团有限公司 | Floor slab structure between building pipelines and construction method of floor slab structure |
| CN204678596U (en) * | 2015-06-05 | 2015-09-30 | 武汉大学 | A kind of funnel draught device |
| CN104990194A (en) * | 2015-07-17 | 2015-10-21 | 哈尔滨工业大学 | Attached type air duct system for building external wall |
| CN105387553A (en) * | 2015-12-28 | 2016-03-09 | 吉林建筑大学 | Toilet fresh-air exchanging device and method |
| CN205261827U (en) * | 2015-12-28 | 2016-05-25 | 孟凡林 | Wind device is renewed to bathroom |
| CN205296807U (en) * | 2016-01-15 | 2016-06-08 | 南通职业大学 | Novel fastener -style steel pipe scaffold U type is wall spare even |
-
2017
- 2017-07-03 CN CN201710533599.9A patent/CN107120774A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565895Y (en) * | 2002-09-03 | 2003-08-13 | 程高林 | Common smoke discharge pipeline for residence |
| CN101928574A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Installing method of dry quenching apparatus |
| CN201606575U (en) * | 2009-12-30 | 2010-10-13 | 中建一局集团第二建筑有限公司 | Copper pipe bearing support for super high-rise building |
| CN102374600A (en) * | 2010-08-24 | 2012-03-14 | 冯静 | Natural ventilation method in high rise building and device thereof |
| CN202419846U (en) * | 2011-10-08 | 2012-09-05 | 中国建筑西北设计研究院有限公司 | Wind-oriented wind-driven natural ventilation air intake device |
| CN102444265A (en) * | 2011-11-01 | 2012-05-09 | 徐水县兴华铸造有限公司 | Vent-thru-roof (VTR) assembly on roof and method for preventing vent stack from water leakage |
| CN102505833A (en) * | 2011-11-21 | 2012-06-20 | 北京建筑工程学院 | Fresh air exhausting public building ventilating shaft with sensible heat recovering function |
| CN102563216A (en) * | 2011-12-29 | 2012-07-11 | 大连益多管道有限公司 | Fixing bracket of vertical tube |
| CN203270973U (en) * | 2013-05-31 | 2013-11-06 | 中国建筑第六工程局有限公司 | Air exhaust device of accessible roof |
| CN203475726U (en) * | 2013-08-13 | 2014-03-12 | 叶香雄 | Roof exhaust structure |
| CN104295800A (en) * | 2014-08-27 | 2015-01-21 | 中广核工程有限公司 | Structure and construction method for nuclear power plant heat preservation pipeline to penetrate through stainless steel cover face |
| CN104695608A (en) * | 2015-03-25 | 2015-06-10 | 杭州通达集团有限公司 | Floor slab structure between building pipelines and construction method of floor slab structure |
| CN204678596U (en) * | 2015-06-05 | 2015-09-30 | 武汉大学 | A kind of funnel draught device |
| CN104990194A (en) * | 2015-07-17 | 2015-10-21 | 哈尔滨工业大学 | Attached type air duct system for building external wall |
| CN105387553A (en) * | 2015-12-28 | 2016-03-09 | 吉林建筑大学 | Toilet fresh-air exchanging device and method |
| CN205261827U (en) * | 2015-12-28 | 2016-05-25 | 孟凡林 | Wind device is renewed to bathroom |
| CN205296807U (en) * | 2016-01-15 | 2016-06-08 | 南通职业大学 | Novel fastener -style steel pipe scaffold U type is wall spare even |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456375A (en) * | 2019-12-30 | 2020-07-28 | 中国市政工程中南设计研究总院有限公司 | Precast concrete air shaft structure and construction method thereof |
| CN111268085A (en) * | 2020-02-27 | 2020-06-12 | 广船国际有限公司 | Ventilation system for ship superstructure and arrangement method thereof |
| CN111594970A (en) * | 2020-05-22 | 2020-08-28 | 广东启源建筑工程设计院有限公司 | Indoor ventilation circulation system of green building |
| CN111594970B (en) * | 2020-05-22 | 2021-04-13 | 广东启源建筑工程设计院有限公司 | Indoor ventilation circulation system of green building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107120774A (en) | A kind of air inlet system and its installation method for residential housing | |
| CN204757183U (en) | New trend air conditioner | |
| CN207048037U (en) | Fang Jianzhong is used for the preset structure for placing outdoor machine of air-conditioner | |
| CN105525935A (en) | Combined and closed subway station ventilation and air conditioning system and application thereof | |
| CN206308763U (en) | A kind of public lavatory post unpowered exhaust system of formula | |
| CN101187489A (en) | Indoor aeration and cleaning equipment using natural wind power | |
| CN206648238U (en) | The ventilating system and communication tower base station of a kind of communication tower base station | |
| CN207335055U (en) | A kind of air inlet system for residential housing | |
| CN204853807U (en) | House garage system of discharging fume of airing exhaust | |
| CN207422541U (en) | A kind of underground garage air exhausting device | |
| CN212339391U (en) | Heating system for tall and big factory building | |
| CN108339806A (en) | A kind of solar panel clean robot based on wind energy | |
| CN113126677B (en) | Ventilation control system for transformer substation and control method thereof | |
| CN204757215U (en) | New air conditioning system | |
| CN103363613A (en) | Air feeding and exhausting device of fresh air unit for super high-rise building | |
| CN107701209A (en) | A kind of mine down-hole power transformation chamber and construction method | |
| CN202416798U (en) | Cast-in-place ventilation and smoke discharge system | |
| CN208168191U (en) | A kind of outdoor outlet is from guarded drainage air-line system | |
| CN104191504B (en) | A kind of precast concrete fast dewatering molding equipment | |
| CN209653486U (en) | Substation's air-conditioning holding cavity structure | |
| CN207776990U (en) | Box power station integral type is fallen and is fallen protection ventilation door of making an uproar | |
| CN206934846U (en) | Lower resistance water filtering device | |
| CN207299424U (en) | A kind of central air-conditioning air exhausting structure of anti-pollution ceiling | |
| CN217440987U (en) | Novel waterproof leak protection shutoff of floor tuber pipe of wearing | |
| CN221031055U (en) | Waterproof passive exhaust structure of energy-saving roofing blast pipe wear-free |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |