CN203964249U - A kind of fire automatic fume exhauster of volumed space building - Google Patents

A kind of fire automatic fume exhauster of volumed space building Download PDF

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Publication number
CN203964249U
CN203964249U CN201420391960.0U CN201420391960U CN203964249U CN 203964249 U CN203964249 U CN 203964249U CN 201420391960 U CN201420391960 U CN 201420391960U CN 203964249 U CN203964249 U CN 203964249U
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China
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fire
cloth curtain
space building
curtain cylinder
volumed space
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CN201420391960.0U
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施樑
宋娜娜
盛伟军
唐军
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Shanghai Fire Research Institute of Ministry of Public Security
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Shanghai Fire Research Institute of Ministry of Public Security
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Abstract

A kind of fire automatic fume exhauster of volumed space building, on the ceiling of volumed space building top, offer several vertical smoke discharging pipes, the coaxial smoke exhaust fan of installing in smoke discharging pipe, covered protection cover on smoke exhaust pipe road junction, below smoke discharging pipe, enclose flexible cloth curtain cylinder along circumferentially configuring one, its upper end is fixedly mounted on ceiling, some draw-strings of balanced configuration on cloth curtain cylinder, draw-string lower end is fixed on cloth curtain cylinder lower end, take up on by motor-driven roller upper end, in volumed space building, the fire detector of configuration is by fire protection warning main frame in alarm signal connection fire protection control center, the control module of fire automatic fume exhauster passed to signal by fire protection warning main frame, control module connects Emergency Power by control circuit, on control module, configure audible-visual annunciator.When breaking out of fire, this device can drop to flue gas Guinier-Preston zone by cloth curtain cylinder and discharge fume, and has greatly improved smoke discharging effect, and the speed of the flue gas that effectively slows down diffusion, is conducive to the control of early stage flue gas in fire.

Description

A kind of fire automatic fume exhauster of volumed space building
Technical field
The utility model relates to structural fire protection field, relates in particular to a kind of smoke discharging structure of volumed space building.
Background technology
Show according to fire statistics data, flue gas is the arch-criminal who causes personnel death in building fire, and personnel die from the large percentage that accounts for of sootiness, are up to 80%, and in the number dead by baked wheaten cake, majority is also dead by baked wheaten cake after first poisoning falling in a swoon.In the number of dying at fire, great majority are that the smoked generation of choking of dense smoke suffocates reaction and causes death.Taking the most fast at during Initial Stage of Fire, the most effectively discharge fume, to maintain escape space and passage maximum, that the duration is the longest in the scene of a fire, is the necessary condition that reduces fire fatality rate.
By regulations for fire fighting, the marquis of the public transport such as subway, airport, railway station takes advantage of region and megastore, movie theatre, indoor public place of entertainment should be provided with fire fume extractor.But after these volumed space building breaking out of fires, because building height is higher, flue gas rises to after certain altitude, the poor buoyancy causing of flue gas and ambient air temperature disappears and transfers negative value at a certain height, cause flue gas stop rise and to extending transversely, make the fume extractor of building top cannot implement effective smoke evacuation, smoke discharging effect is unsatisfactory, has the early stage low inferior problem of poor, the overall smoke exhaust efficiency of flue gas inhibition in fire.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of fire automatic fume exhauster of volumed space building, this device can decline smoke exhaust pipe intelligence according to flue gas Guinier-Preston zone height, implement effectively smoke evacuation, the speed of the flue gas that slows down diffusion, control scene of a fire smog rapid spread, be conducive to the control of early stage flue gas in fire.
The utility model is achieved through the following technical solutions:
A fire automatic fume exhauster for volumed space building, is characterized in that:
On the ceiling of the top of described volumed space building, several vertical smoke discharging pipes are offered at interval, in smoke discharging pipe, the coaxial smoke exhaust fan of installing, is exposed at outside the upper end of smoke discharging pipe on the roof of described volumed space building, and its top covers the protective cover of a chimney, outside lower end, be exposed on ceiling
Below smoke discharging pipe, along circumferential configuration one circle flexible cloth curtain cylinder, cloth curtain cylinder upper/lower terminal is openend, and upper end diameter is less than lower end diameter, and its upper end is fixedly mounted on ceiling,
Some draw-strings of balanced configuration on cloth curtain cylinder, draw-string lower end is fixed on cloth curtain cylinder lower end, and take up on by motor-driven roller upper end, and the projection of draw-string on horizontal plane radially overlaps with cloth curtain cylinder,
Motor and roller are fixed on the ceiling in outside, smoke discharging pipe lower end, on motor, configure two-way power supply, one tunnel is the main power source of described volumed space building, one tunnel is Emergency Power, motor, roller, Emergency Power and supply line are arranged in the fireproof box of sealing, draw-string activity from fireproof box passes
In described volumed space building, configure some fire detectors,
Fire detector is by fire protection warning main frame in alarm signal connection fire protection control center, the control module of described fire automatic fume exhauster passed to signal by fire protection warning main frame, control module connects Emergency Power and main power source by control circuit, configures audible-visual annunciator on control module
The exposed face of above-mentioned smoke discharging pipe, smoke exhaust fan, protective cover, cloth curtain cylinder, draw-string, fireproof box, fire detector all adopts and affected by high temperature smoke, and the personnel that can not cause in the scene of a fire endanger or the fire prevention incombustible material or the nonflammable material that encourage the intensity of a fire made
Described fire automatic fume exhauster has smoke evacuation state and two duties of monitored state:
When monitored state, fire detector is opened monitoring, and control module starts main power source motor power supply, roller are taken up draw-string, will on cloth curtain cylinder lower end, carry, and cloth curtain cylinder is received Volume and become cast to be close on ceiling;
When smoke evacuation state, there is ignition point in certain position in described volumed space building or certain several position, near fire detector ignition point sends fire alarm signal to fire protection warning main frame, the position of feedback ignition point, fire alarm is sent to control module by fire protection warning main frame, control module starts audible-visual annunciator and gives the alarm, the main power source or the Emergency Power that start near the cloth curtain cylinder correspondence of ignition point are powered to motor simultaneously, roller unwrapping wire, cloth curtain cylinder lower end is transferred to flue gas accumulation regions height, the tapered tubular of cloth curtain cylinder, smoke exhaust fan starts, smog is passed through to cloth curtain cylinder, smoke discharging pipe and protective cover force to discharge described volumed space building outside.
This device is arranged on the top of volumed space building, in the time of breaking out of fire, control module receives after the alarm signal of fire protection warning main frame, and near cloth curtain cylinder ignition point is dropped to flue gas Guinier-Preston zone by control module control motor, driving rolls, then starts smoke exhaust fan and implements forced fume exhaust.When case of fire is different, the height of flue gas Guinier-Preston zone may be not quite similar, and therefore cloth curtain cylinder falling head is adjustable, passes through alarm signal intelligent decision flue gas Guinier-Preston zone height by control module, thereby that controls draw-string puts rope length, makes cloth curtain cylinder lower ending opening just in time be arranged in flue gas Guinier-Preston zone.
Fireproof box is bolted on smoke discharging pipe ceiling around by top, and motor, roller, Emergency Power and supply line are arranged in fireproof box, prevent from being damaged by high temperature smoke calcination.
Draw-string is arranged symmetrically with, and is generally 2~4, and many draw-strings are synchronously received Volume or transferred cloth curtain cylinder, thereby makes the state of cloth curtain cylinder entirety in being received or transfer by Volume, avoids the folding and unfolding of cloth curtain cylinder inhomogeneous.The projection of draw-string on horizontal plane radially overlaps with cloth curtain cylinder, is the most laborsaving and is easy to the arrangement of extraction.
On motor, having configured two-way power supply, is to consider that when fire occurs, the main power source in volumed space building may be cut off at any time, and after main power source cuts off, Emergency Power starts as motor power supply, thereby cloth curtain cylinder is fixed on to suitable height and position.
The structure of protective cover is similar to chimney; its top is with the block of a taper; block is arranged on tubular cover body by spaced apart vertical support column; flue gas can be discharged from the space between support column; can prevent that again outside rainwater, dirt etc. from entering volumed space building by smoke discharging pipe and polluting, thereby exposed smoke exhaust pipe road junction on roof is played a protective role simultaneously.
Further, in order to ensure good forced fume exhaust effect, the allocation ratio of described smoke discharging pipe and volumed space building is: every 500m 2a smoke discharging pipe of construction area configuration, the diameter of smoke discharging pipe is 1.5m, the exhaust smoke level of smoke discharging pipe is calculated according to following specification:
According to " Code for fire protection design of high rise buildings (50045-95) " 8.4.1.3 bar regulation, " do not possess the Zhongting that natural draught system conditioned disjunction head room exceedes 12m, mechanical smoke extraction facility should be set." calculating of Influences of Structuture amount, by " high rule " 8.4.2.3 bar regulation, " Zhongting volume is less than or equal to 17000m 3time, its exhaust smoke level is by the 6 times/h Calculation of Gas Exchange Process of its volume; Zhongting volume is greater than 17000m 3time, its exhaust smoke level is by the 4 times/h Calculation of Gas Exchange Process of its volume, but minimum exhaust smoke level should not be less than l02000m 3/ h ".
Further again, cloth curtain cylinder is taper barrel, elliptic cone tubular or pyramid tubular after transferring.Enter mouth bore for what expand whole smoke-exhaust pipeline, the angle α tapering of the cloth curtain cylinder conical surface and horizontal plane is the smaller the better, and in order to take into account the height of transferring of cloth curtain cylinder, the span of α is generally 30 °~85 ° simultaneously.
Further again, described cloth curtain cylinder is glass fabric cloth curtain cylinder, covers poly-amino methyl ethyl ester coating on its double-faced surface.Glass fabric quality softness, and lightweight, be easy to receive Volume, simultaneously again can be high temperature resistant, be the ideal material of manufacturing cloth curtain cylinder, polyurethane possesses low-thermal conductivity, the excellent stability with respect to variations in temperature, fire resistance.
In addition, cloth curtain cylinder also can select other material with similar proterties to make.
Further again, the sidewall of fireproof box is galvanized steel plain sheet more than thickness 2mm, and described draw-string is steel wire rope, sturdy and durable, fire-proof smoke-proof, and cost is comparatively cheap.
Further again, on described Emergency Power, configuration exposes LED signal lamp and buzzing alarm bell, cheap working condition and the dump energy of understanding Emergency Power observed.
Further again, alarm signal circuit and control route are wired fire prevention circuit or radiolink, prevent that high temperature smoke calcination from damaging.
The beneficial effects of the utility model are:
1, can be good at assembling for the flue gas in volumed space building, situation about cannot effectively discharge fume is carried out forced fume exhaust, has greatly improved smoke discharging effect, is conducive to the control of early stage flue gas in fire;
2, can effectively the slow down speed of flue gas diffusion, controls scene of a fire smog rapid spread;
3, cloth curtain cylinder does not take the inner space of volumed space building at ordinary times, just transfers rapidly use while needs, and simple in structure, good reliability, is convenient to promoting the use on volumed space building.
Brief description of the drawings
The front elevational schematic of this device when Fig. 1 is monitored state
The front elevational schematic of this device when Fig. 2 is smoke evacuation state
Fig. 3 is the connection schematic diagram of this device
In Fig. 1~2: 1 is smoke discharging pipe, 2 is ceiling, and 3 is smoke exhaust fan, and 4 is protective cover, and 5 is cloth curtain cylinder, and 6 is draw-string, and 7 is motor, and 8 is roller, and 9 is fireproof box.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
On the ceiling 2 of the top of volumed space building, several vertical smoke discharging pipes 1 are offered at interval, the interior coaxial installation smoke exhaust fan 3 of smoke discharging pipe 1, outside the upper end of smoke discharging pipe 1, be exposed on the roof of described volumed space building, its top covers the protective cover 4 of a chimney, is exposed on ceiling 2 outside lower end.
Below smoke discharging pipe 1, enclose flexible cloth curtain cylinder 5 along circumferentially configuring one, cloth curtain cylinder 5 upper/lower terminals are openend, and upper end diameter is less than lower end diameter, and its upper end is fixedly mounted on ceiling 2, cloth curtain cylinder 5 is glass fabric cloth curtain cylinder, covers poly-amino methyl ethyl ester coating on its double-faced surface.
On cloth curtain cylinder 5 balanced configuration two draw-strings 6, draw-string 6 lower ends are fixed on cloth curtain cylinder 5 lower ends, take up on the roller 8 being driven by motor 7 upper end, the projection of draw-string 6 on horizontal plane radially overlaps with cloth curtain cylinder 5.
Motor 7 and roller 8 are fixed on the ceiling 2 in smoke discharging pipe 1 outside, lower end, on motor 7, configure two-way power supply, one tunnel is the main power source of described volumed space building, one tunnel is Emergency Power, motor 7, roller 8, Emergency Power and supply line are arranged in the fireproof box 9 of sealing, LED signal lamp and alarm bell that on Emergency Power, configuration exposes, draw-string 6 activity from fireproof box 9 passes.Wherein, the sidewall of fireproof box 9 is galvanized steel plain sheet more than thickness 2mm, and draw-string 6 is steel wire rope.
In described volumed space building, configure some fire detectors, fire detector is by the fire protection warning main frame in alarm signal connection fire protection control center, fire protection warning main frame is transferred to signal the control module of described fire automatic fume exhauster, control module connects Emergency Power and main power source by control circuit, on control module, configure audible-visual annunciator, alarm signal circuit and control circuit are wired fire prevention circuit or radiolink, as shown in Figure 3.
The exposed face of smoke discharging pipe 1, smoke exhaust fan 3, protective cover 4, cloth curtain cylinder 5, draw-string 6, fireproof box 9, fire detector all adopts and affected by high temperature smoke, and the personnel that can not cause in the scene of a fire endanger or the fire prevention incombustible material or the nonflammable material that encourage the intensity of a fire made.
Described fire automatic fume exhauster comprises smoke evacuation state and two duties of monitored state:
As shown in Figure 1, when monitored state, fire detector is opened monitoring, control module start main power source to motor 7 power, roller 8 takes up draw-string 6, will on cloth curtain cylinder 5 lower ends, carry, cloth curtain cylinder 5 is received Volume and is become cast to be close on ceiling 2;
As shown in Figure 2, when smoke evacuation state, there is ignition point in certain position in described volumed space building or certain several position, near fire detector ignition point sends fire alarm signal to fire protection warning main frame, the position of feedback ignition point, fire protection warning main frame transmission fire alarm information is to control module, control module starts audible-visual annunciator and gives the alarm, the preferential main power source that starts near cloth curtain cylinder 5 correspondences of ignition point is powered to motor 7 simultaneously, if main power source is now cut off, control module startup Emergency Power is powered to motor 7, roller 8 unwrapping wire, cloth curtain cylinder 5 lower ends are transferred to the flue gas Guinier-Preston zone place of ignition point top, cloth curtain cylinder 5 is conical tubular, the maximum angle of the angle α of the cloth curtain cylinder conical surface and horizontal plane is 85 °, smoke exhaust fan 3 starts, smog is passed through to cloth curtain cylinder 5, smoke discharging pipe 1 and protective cover semi-finals system are discharged described volumed space building outside.

Claims (8)

1. a fire automatic fume exhauster for volumed space building, is characterized in that:
Offer several vertical smoke discharging pipes (1) at the upper interval of the top of described volumed space building ceiling (2), the coaxial smoke exhaust fan (3) of installing in smoke discharging pipe (1), outside the upper end of smoke discharging pipe (1), be exposed on the roof of described volumed space building, its top covers the protective cover (4) of a chimney, outside lower end, be exposed on ceiling (2)
Enclose flexible cloth curtain cylinder (5) in smoke discharging pipe (1) below along circumferentially configuring one, cloth curtain cylinder (5) upper/lower terminal is openend, and upper end diameter is less than lower end diameter, its upper end is fixedly mounted on ceiling (2)
The upper some draw-strings of balanced configuration (6) of cloth curtain cylinder (5), draw-string (6) lower end is fixed on cloth curtain cylinder (5) lower end, take up on the roller (8) being driven by motor (7) upper end, the projection of draw-string (6) on horizontal plane radially overlaps with cloth curtain cylinder (5)
Motor (7) and roller (8) are fixed on the ceiling (2) in outside, smoke discharging pipe (1) lower end, the upper configuration of motor (7) two-way power supply, one tunnel is the main power source of described volumed space building, one tunnel is Emergency Power, motor (7), roller (8), Emergency Power and supply line are arranged in the fireproof box (9) of sealing, draw-string (6) activity from fireproof box (9) passes
In described volumed space building, configure some fire detectors,
Fire detector is by the fire protection warning main frame in alarm signal connection fire protection control center, the control module of described fire automatic fume exhauster passed to signal by fire protection warning main frame, control module connects Emergency Power and main power source by control circuit, configures audible-visual annunciator on control module
The exposed face of above-mentioned smoke discharging pipe (1), smoke exhaust fan (3), protective cover (4), cloth curtain cylinder (5), draw-string (6), fireproof box (9), fire detector all adopts and affected by high-temperature flue gas, and the personnel that can not cause in the scene of a fire endanger or the fire prevention incombustible material or the nonflammable material that encourage the intensity of a fire made
Described fire automatic fume exhauster has smoke evacuation state and two duties of monitored state:
When monitored state, fire detector is opened monitoring, control module starts main power source motor (7) power supply, roller (8) is taken up draw-string (6), to on cloth curtain cylinder (5) lower end, carry, cloth curtain cylinder (5) is received Volume and is become cast to be close on ceiling (2);
When smoke evacuation state, there is ignition point in certain position in described volumed space building or certain several position, near fire detector ignition point sends fire alarm signal by fire protection warning main frame to control module, position and the flue gas Guinier-Preston zone height of feedback ignition point, control module starts audible-visual annunciator and gives the alarm, start near corresponding main power source or the Emergency Power of the cloth curtain cylinder (5) of ignition point powers to motor (7) simultaneously, roller (8) unwrapping wire, cloth curtain cylinder (5) lower end is transferred to the flue gas Guinier-Preston zone place of ignition point top, the tapered tubular of cloth curtain cylinder (5), smoke exhaust fan (3) starts, smog is passed through to cloth curtain cylinder (5), smoke discharging pipe (1) and protective cover (4) force to be expelled to described volumed space building outside.
2. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: described smoke discharging pipe (1) with the allocation ratio of volumed space building is: every 500m 2a smoke discharging pipe of construction area configuration (1), the diameter of smoke discharging pipe (1) is 1.5m.
3. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: described draw-string (6) is 2~4.
4. the fire automatic fume exhauster of volumed space building according to claim 1, it is characterized in that: described cloth curtain cylinder (5) is taper barrel, elliptic cone tubular or pyramid tubular after transferring, the angle α of the cloth curtain cylinder conical surface and horizontal plane is 30 °~85 °.
5. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: described cloth curtain cylinder (5) is glass fabric cloth curtain cylinder, covers poly-amino methyl ethyl ester coating on its double-faced surface.
6. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: the sidewall of described fireproof box (9) is galvanized steel plain sheet more than thickness 2mm, and described draw-string (6) is steel wire rope.
7. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: LED signal lamp and alarm bell that on described Emergency Power, configuration exposes.
8. the fire automatic fume exhauster of volumed space building according to claim 1, is characterized in that: described alarm signal circuit and control circuit are wired fire prevention circuit or radiolink.
CN201420391960.0U 2014-07-16 2014-07-16 A kind of fire automatic fume exhauster of volumed space building Active CN203964249U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089360A (en) * 2014-07-16 2014-10-08 公安部上海消防研究所 Automatic smoke exhaust device for large-space building catching fire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089360A (en) * 2014-07-16 2014-10-08 公安部上海消防研究所 Automatic smoke exhaust device for large-space building catching fire
CN104089360B (en) * 2014-07-16 2017-02-15 公安部上海消防研究所 Automatic smoke exhaust device for large-space building catching fire

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