CN209042677U - A kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping - Google Patents
A kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping Download PDFInfo
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- CN209042677U CN209042677U CN201821596562.7U CN201821596562U CN209042677U CN 209042677 U CN209042677 U CN 209042677U CN 201821596562 U CN201821596562 U CN 201821596562U CN 209042677 U CN209042677 U CN 209042677U
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Abstract
The utility model discloses a kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Stripings, including smoke-and fire-preventing valve (1), blower (2), Electric air valve (3), electric vent (5) and check-valves (4), the air hose (6) is located above furred ceiling (8), air hose (6) one end is successively arranged smoke-and fire-preventing valve (1), blower (2) and Electric air valve (3), and air hose (6) other end is connected to by smoke-and fire-preventing valve (1) with ventilating shaft (7)；The ventilating shaft (7) and staircase are separated by partition wall (9), are provided with several electric vents (5) on partition wall (9)；Ventilating shaft (7) top is provided with check-valves (4).The folding structure of the utility model is simple, equipment mature and reliable, simple installation, and fire working can be achieved after the completion and nominal situation is converted, meet the system function under two kinds of operating conditions.
Description
Technical field
The utility model relates to underground space ventilation and prevention technique fields, and in particular to a kind of fire-fighting evacuation stair pressurization
Ventilating shaft and new ventilating shaft Striping.
Background technique
Since the proposal for proposing " greatly developing the underground space, start the mankind's new cave period " from International Tunnelling Association,
The development and utilization of the underground space have obtained the product of countries in the world as the important measure for solving population, environment, resource Three Difficult Issues
Pole response.In recent years, highly developed to the development technique of the underground space both at home and abroad, especially traffic tunnel and underground rail are handed over
Logical development is swift and violent.
By taking subway as an example, subway produced to people, live offer convenience while, still need to be attacked there are many limiting factor
Gram, the underground space is taken precautions against natural calamities ventilation, rescue evacuation, operation ventilation and urban ground land occupation difficulty etc..
Dense smoke is the first killer of fire.According to statistics, 4-5 times that the people extremely choked to death is the person of being scorched to death is smoked in fire by dense smoke.
Under fire condition the main reason for casualties for sucking flue gas, in order to guarantee personnel's evacuation safety, should adopt an effective measure into
The separation of pedestrian's cigarette.Evacuation building in subway guarantees safety zone relative to fire zone i.e. to pressure air blowing is carried out in means of escape
The positive pressure in domain makes personnel escape against fresh air, plays certain guiding function.Operation ventilation is to ensure underground space air matter
Amount, effectively reduces the important means of carbon dioxide and inspirable particle concentration, in subway mainly by lead directly to ground it is new,
Simultaneously blower progress force ventilation is arranged in removing shaft, but as hypogee the more is buried the more deep, reducing underground space ventilating shaft quantity can pole
Facilitate construction greatly, shortens construction period.
Therefore, fire-fighting evacuation stair pressurization ventilating shaft is combined into one with new ventilating shaft, and can realizes nominal situation and accident work
The technology of two kinds of functional requirements of condition has far reaching significance to underground engineering construction, particularly with the lesser section wind of fresh air demand
Well and civil air defense constructions and installations etc. can be widely applied.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of fire-fighting evacuation stair pressurization ventilating shafts to share with new ventilating shaft
Technology, structure is simple, equipment mature and reliable, simple installation, and fire-fighting evacuation stair pressurization ventilating shaft is combined into one with new ventilating shaft, complete
It is converted at rear achievable fire working and nominal situation, meets the system function under two kinds of operating conditions, both can guarantee that accident conditions are dredged
Positive pressure in stair channel is dissipated, prevents flue gas from invading fire escape, and is able to satisfy the fresh air supplement of nominal situation.
In order to solve the above technical problems, the utility model provides a kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft closes
With technology, including smoke-and fire-preventing valve, blower, Electric air valve, air hose, electric vent, check-valves, the air hose is mounted on staircase
In Ventilator Room above the furred ceiling of top, air hose one end is sequentially installed with smoke-and fire-preventing valve, blower and Electric air valve, and passes through Smoke prevention
Fire resisting damper is connected to outdoor, and the air hose other end is connected to by another smoke-and fire-preventing valve with ventilating shaft.The ventilating shaft passes through from top to bottom
It wears staircase vertically to set up, and is separated with staircase by partition wall, be provided with several electric vents on the partition wall, it is described electronic
Air port is connected to every first floor ladder channel；Check-valves, the check-valves and outdoor are additionally provided on the air port of ventilating shaft top side wall
Connection, guarantees the air-tightness of ventilating shaft；Ventilating shaft bottom passes sequentially through the pipeline for being equipped with Electric air valve and smoke-and fire-preventing valve and outdoor
Connection.
Further, the smoke-and fire-preventing valve, blower, Electric air valve are duct type.
Further, the blower is axial flow blower.
Further, the electric vent is usually normally closed, and when fire opens.
Further, the Electric air valve and blower are linkage pattern, with the synchronous start and stop of system.
Further, the air hose is steel air hose.
Fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping, pass through check-valves and electric vent realizes accident work
The unidirectional air-tightness of condition and nominal situation can both prevent flue gas when fire from invading fire escape, ensure that under nominal situation
Fresh air supplement, effectively reduces ventilating shaft quantity, optimizes underground space utilization rate.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the overlooking structure diagram of the utility model fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping.
Fig. 2 is the schematic diagram of the section structure of the utility model fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping.
Fig. 3 is the operation logic of the utility model fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping nominal situation
Figure.
Fig. 4 is the operation logic of the utility model fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping fire working
Figure.
In figure: 1- smoke-and fire-preventing valve 2- axial flow blower 3- Electric air valve 4- check-valves 5- electric vent 6- air hose 7-
The air port ventilating shaft 8- furred ceiling 9- partition wall 10-
Specific embodiment
Below with reference to embodiment attached drawing, clear, complete description is carried out to the technical solution of the utility model.It is practical at this
In novel description, it should be noted that the side of the instructions such as term " center ", "upper", "lower", "left", "right", "inner", "outside"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
Fig. 1 Fig. 2 is respectively the fire-fighting evacuation stair pressurization ventilating shaft of the utility model elaboration and bowing for new ventilating shaft Striping
Depending on and schematic cross-sectional view.Fire-fighting evacuation stair pressurization ventilating shaft provided by the utility model and new ventilating shaft Striping, including
Smoke-and fire-preventing valve 1, blower 2, Electric air valve 3, air hose 6, electric vent 5, check-valves 4, air hose 6 are mounted on furred ceiling at the top of staircase
In the Ventilator Room of 8 tops, 6 one end of air hose is sequentially installed with smoke-and fire-preventing valve 1, blower 2 and Electric air valve 3, and anti-by Smoke prevention
Fiery valve 1 is connected to outdoor, and smoke-and fire-preventing valve 1, blower 2, Electric air valve 3 are duct type, and blower 2 is axial flow blower.It is electronic
Air-valve 3 and blower 2 are linkage pattern, with the synchronous start and stop of system.Air hose 6 is preferably steel air hose.
6 other end of air hose is connected to by another smoke-and fire-preventing valve 1 with ventilating shaft 7；Ventilating shaft 7 hangs down through staircase from top to bottom
It directly sets up, and is separated with staircase by partition wall 9, several electric vents 5, electric vent 5 and every first floor are provided on partition wall 9
Terraced channel connection；Check-valves 4 is additionally provided on the air port 10 of 7 top side wall of ventilating shaft, check-valves 4 is connected to outdoor；7 bottom of ventilating shaft
It passes sequentially through and the pipeline of Electric air valve 3 and smoke-and fire-preventing valve 1 is installed is connected to outdoor.It is to guarantee wind that check-valves 4, which is arranged,
Amount will not flow to outdoor from air port 10, lead to insufficient pressure in staircase.
Above embodiment fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping in actual use, blower 2
Left end picks out outdoor by air hose 6, and right end accesses ventilating shaft 7, and Electric air valve 3 is installed on air hose 6, is arranged at the partition wall of two sides
Smoke-and fire-preventing valve 1.Under nominal situation, as shown in figure 3, blower 2 and the air-valve 3 of interlocking setting are closed, electric vent 5 is closed, newly
Wind is connected into ventilating shaft 7 with station equipment through check-valves 4.As shown in figure 4, fire protection control room receives fire under fire working
After signal, interlocking air-valve 3-- is opened immediately and closes unrelated Electric air valve -- it opens electric vent 5-- and opens blower 2, to staircase
Pressure air blowing.
Finally, it should be noted that being explained in detail above in conjunction with attached drawing to the embodiments of the present invention, it is clear that retouch
The embodiment stated is only a specific embodiment of the utility model, the embodiment being not all of.Above-described embodiment is to say
Bright property, it is not limiting, the protection scope of the utility model cannot be limited with following embodiments.But the utility model
It is not limited to the above embodiment, can arbitrarily change in the reasonable scope.Know what those of ordinary skill in the art had
Know in range, other many variations can also be made without departing from the purpose of the present invention.
Claims (6)
1. a kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping, which is characterized in that including smoke-and fire-preventing valve (1),
Blower (2), Electric air valve (3), air hose (6), electric vent (5) and check-valves (4), the air hose (6) are mounted on staircase top
In Ventilator Room above portion's furred ceiling (8), air hose (6) one end is sequentially installed with smoke-and fire-preventing valve (1), blower (2) and Electric air valve
(3), it and by smoke-and fire-preventing valve (1) with outdoor is connected to, air hose (6) other end passes through another smoke-and fire-preventing valve (1) and ventilating shaft
(7) it is connected to；The ventilating shaft (7) is vertically set up through staircase from top to bottom, and is separated with staircase by partition wall (9), described
It is provided on partition wall (9) several electric vents (5), the electric vent (5) is connected to every first floor ladder channel；Ventilating shaft (7) top
It is additionally provided with check-valves (4) on the air port (10) of end side wall, the check-valves (4) is connected to outdoor；Ventilating shaft (7) bottom successively leads to
It crosses and the pipeline of Electric air valve (3) and smoke-and fire-preventing valve (1) is installed is connected to outdoor.
2. fire-fighting evacuation stair pressurization ventilating shaft described in accordance with the claim 1 and new ventilating shaft Striping, which is characterized in that described
Smoke-and fire-preventing valve (1), blower (2), Electric air valve (3) are duct type.
3. fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping according to claim 2, which is characterized in that described
Blower (2) is axial flow blower.
4. fire-fighting evacuation stair pressurization ventilating shaft described in accordance with the claim 1 and new ventilating shaft Striping, which is characterized in that described
Electric vent (5) is usually normally closed, and when fire opens.
5. fire-fighting evacuation stair pressurization ventilating shaft described in accordance with the claim 1 and new ventilating shaft Striping, which is characterized in that described
Electric air valve (3) and blower (2) are interlocking mode, with the synchronous start and stop of system.
6. fire-fighting evacuation stair pressurization ventilating shaft described in accordance with the claim 1 and new ventilating shaft Striping, which is characterized in that described
Air hose (6) is steel air hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596562.7U CN209042677U (en) | 2018-09-28 | 2018-09-28 | A kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596562.7U CN209042677U (en) | 2018-09-28 | 2018-09-28 | A kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping |
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| CN209042677U true CN209042677U (en) | 2019-06-28 |
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| CN201821596562.7U Active CN209042677U (en) | 2018-09-28 | 2018-09-28 | A kind of fire-fighting evacuation stair pressurization ventilating shaft and new ventilating shaft Striping |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395670A (en) * | 2020-03-27 | 2020-07-10 | 深圳市方佳建筑设计有限公司 | Underground evacuation stair structure |
| CN114135963A (en) * | 2021-11-18 | 2022-03-04 | 郑州地铁集团有限公司 | New wind channel and urgent sparse mouthful co-construction structure for subway |
| CN116479939A (en) * | 2023-06-21 | 2023-07-25 | 中国铁路设计集团有限公司 | Subway smoke-proof safety outlet and construction method |
-
2018
- 2018-09-28 CN CN201821596562.7U patent/CN209042677U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395670A (en) * | 2020-03-27 | 2020-07-10 | 深圳市方佳建筑设计有限公司 | Underground evacuation stair structure |
| CN114135963A (en) * | 2021-11-18 | 2022-03-04 | 郑州地铁集团有限公司 | New wind channel and urgent sparse mouthful co-construction structure for subway |
| CN116479939A (en) * | 2023-06-21 | 2023-07-25 | 中国铁路设计集团有限公司 | Subway smoke-proof safety outlet and construction method |
| CN116479939B (en) * | 2023-06-21 | 2023-10-24 | 中国铁路设计集团有限公司 | Subway smoke-proof safety outlet and construction method |
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