CN104929673A - Channel type fire-proof separation device and method for composite underground ring corridor - Google Patents
Channel type fire-proof separation device and method for composite underground ring corridor Download PDFInfo
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- CN104929673A CN104929673A CN201510351339.0A CN201510351339A CN104929673A CN 104929673 A CN104929673 A CN 104929673A CN 201510351339 A CN201510351339 A CN 201510351339A CN 104929673 A CN104929673 A CN 104929673A
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Abstract
The invention discloses a channel type fire-proof separation device and method for a composite underground ring corridor. The composite underground ring corridor comprises an underground ring corridor and a linking taxiway. The underground ring corridor is communicated with an urban underground rapid channel through the linking taxiway. The two side walls of the linking taxiway are provided with a side wall air exhaust channel and a side wall air supply channel respectively. The side wall air exhaust channel includes an air exhaust wellhole. An air exhaust device is arranged in the air exhaust wellhole. The side wall air supply channel includes an air supply wellhole. An air supply device is arranged in the air supply wellhole. The linking taxiway enables the lower end of the air exhaust wellhole to be communicated with the lower end of the air supply wellhole. The upper end of the air exhaust wellhole and the upper end of the air supply wellhole are both communicated with the ground. According to the channel type fire-proof separation device and method for the composite underground ring corridor, the situation that smoke gas of the urban underground rapid channel and smoke gas of the underground ring corridor are mixed under fire conditions can be effectively avoided, fire fighting vehicles are not affected when passing through the linking taxiway, and fire rescue efficiency and reliability are remarkably improved. Besides, the channel type fire-proof separation device has the advantages of being low in construction cost, convenient to construct, short in cycle, high in benefit, low in maintenance cost and the like.
Description
Technical field
The present invention relates to tunnel ventilation class, the device and method of compound underground ring corridor channel-type fire separation specifically, is applicable to the fire separation between the quick tunnel of Urban Underground and ring corridor, underground.
Background technology
Along with the national economic development, urban traffic career development is rapid, and City Underground Transportation road construction is also advanced by leaps and bounds thereupon.Ring corridor, underground is a kind of novel City Underground Transportation road occurred in recent years, and that builds for connecting garage, each plot is positioned at below road and is furnished with the underground public passage of independent access, usually in the form of a ring.
Ring corridor, compound underground is often referred to the ring corridor, underground that tunnel quick with Urban Underground combines.There is a series of fire fire fighting problem in this ring corridor, compound underground, because the designed driving speed of ring corridor, underground is generally 20km/h, and the road speed in the quick tunnel of Urban Underground is at 50-60km/h, the great disparity of the current speed of a motor vehicle of the two design brings a difficult problem to the fire-fighting smoke exhaust system of tunnel and ring corridor.
The difference of the fume exhausting type of the quick tunnel of Urban Underground and ring corridor, underground can cause fire smoke to be gone here and there mutually.In engineering design, the fire compartmentation of ring corridor, underground is arranged independent of the quick tunnel of Urban Underground, ring corridor, underground is due to the particularity of its annular configuration, and usually adopt transversal ventilation system, carry out horizontal smoke evacuation during fire, air flow direction is based on transverse direction; Usually adopt longitudinal smoke evacuation system under Urban Underground quick tunnel fire hazard operating mode, the difference of the two fume exhausting type, when causing the quick tunnel breaking out of fire of Urban Underground, its flue gas very easily enters ring corridor, underground under the effect of longitudinal high velocity air, causes fire spread.Equally, during the breaking out of fire of ring corridor, underground, the flue gas of inside, ring corridor very easily affects by the longitudinal air flow in the quick tunnel of Urban Underground, causes smoke exhaust efficiency reduction, deleterious.
In traditional design, the fire separation of the quick tunnel of Urban Underground and ring corridor, underground is adopted usually and physics fire curtain or water curtain are set.Adopt the ring corridor, compound underground of physics fire curtain, during fire, fire curtain really can form effective obstruct of quick tunnel and ring corridor, underground, but has also intercepted the passage that fire-fighting and rescue vehicle enters scene of fire simultaneously.Water curtain is adopted to carry out the ring corridor, compound underground separated, the problem that fire separation and fire-fighting and rescue car are current can be solved simultaneously, but need to provide huge fire cistern, to supply the water yield of water curtain, also need for fire water drainage provides huge fire pump room simultaneously, greatly, this is a huge challenge to construction investment economization, engineering design plan (EDP) rationalization for its construction and maintenance cost.
Summary of the invention
The technical problem to be solved in the present invention is the defect that the construction and maintenance cost in order to overcome existing water curtain separation existence is large, provides a kind of compound underground ring corridor channel-type fire separation device and method.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of compound underground ring corridor channel-type fire separation device, this ring corridor, compound underground comprises ring corridor, underground and a connecting taxiway, ring corridor, described underground is communicated with the quick tunnel of Urban Underground by described connecting taxiway, its feature is, the two side of described connecting taxiway is respectively equipped with a sidewall air draft path and sidewall air-supply path, described sidewall air draft path comprises an air draft hoistway, an air exhausting device is provided with in described air draft hoistway, described sidewall air-supply path comprises an air-supply hoistway, an air-supply arrangement is provided with in described air-supply hoistway, the lower end of the lower end of described air draft hoistway with described air-supply hoistway is communicated with by described connecting taxiway, the upper end of described air draft hoistway and the upper end of described air-supply hoistway are all communicated in ground, described sidewall air draft path and described sidewall air-supply path are all positioned at the one end in the quick tunnel of close described Urban Underground of described connecting taxiway, the side of described connecting taxiway is adjacent to the upstream of the direction of traffic in the quick tunnel of described Urban Underground, opposite side is adjacent to the downstream of the direction of traffic in the quick tunnel of described Urban Underground, described sidewall air-supply path is positioned at the side of described connecting taxiway, and described sidewall air draft path is positioned at the opposite side of described connecting taxiway, the position that the position that described air draft hoistway is communicated with ground, described air-supply hoistway are communicated with ground is equipped with a rain insensitive device, the width of described air draft hoistway and the width of described air-supply hoistway are all not less than 1m.
Preferably, the lower end of described air draft hoistway is the sidewall air outlet being communicated with described connecting taxiway, described sidewall air outlet is embedded with an air draft screen pack, and described sidewall air outlet is also provided with multiple air draft flow deflector, and the height of described sidewall air outlet is identical with the height of described connecting taxiway.Screen pack can impurity in filtered air, avoids impurity to enter connecting taxiway from ground; Flow deflector can guide the flow direction of gas, gas is flowed more smooth and easy; The height of sidewall air outlet is identical with the height of connecting taxiway, can increase the exhaust air rate of sidewall air outlet.
Preferably, the lower end of described air-supply hoistway is the sidewall air outlet being communicated with described connecting taxiway, described sidewall air outlet is embedded with a powered air-purifying net, and described sidewall air outlet is also provided with multiple air-supply flow deflector, and the height of described sidewall air outlet is identical with the height of described connecting taxiway.Screen pack can impurity in filtered air, avoids impurity to enter connecting taxiway from ground; Flow deflector can guide the flow direction of gas, gas is flowed more smooth and easy; The height of sidewall air outlet is identical with the height of connecting taxiway, can increase the air output of sidewall air outlet.
Preferably, described air exhausting device is an exhaust fan, and described air-supply arrangement is a breeze fan.Exhaust fan and breeze fan are all usual means, have good exhaust effect and air-supply effect respectively.
A kind of compound underground ring corridor fire separation method, its feature is, foregoing compound underground ring corridor fire separation device is set in ring corridor, compound underground, when described air exhausting device and described air-supply arrangement are opened simultaneously, in described connecting taxiway, form the crossflow from described sidewall air-supply path to described sidewall air draft flow channels.
Preferably, described cross-flow speed is not less than 6m/s and is not more than 8m/s.Like this, can energy conservation, avoid waste, also can reach good separation flameproof effect.
Positive progressive effect of the present invention is: under fire working, open exhaust fan and breeze fan, sidewall air-supply path and sidewall air draft path form the type crossflow air curtain that dams at a high speed in connecting taxiway, the quick tunnel of Urban Underground or ring corridor, the underground flue gas under fire working can not only be effectively avoided to go here and there mutually, and do not affect fire-fighting vehicle by connecting taxiway, fire fighting and rescue is carried out to the tunnel of breaking out of fire or ring corridor.The present invention can significantly improve fire-fighting and rescue efficiency and reliability, and has the advantages such as construction cost is low, easy construction, the cycle is short, high efficiency, maintenance cost are low, can large-scale promotion.
Accompanying drawing explanation
Fig. 1 is ring corridor, the compound underground floor map of present pre-ferred embodiments.
Fig. 2 is the compound underground ring corridor channel-type fire separation device schematic diagram of present pre-ferred embodiments.
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
As depicted in figs. 1 and 2, a kind of compound underground ring corridor channel-type fire separation device, this ring corridor, compound underground comprises ring corridor, underground 1 and connecting taxiway, two connecting taxiways are provided with between ring corridor, underground 1 and the quick tunnel 4 of Urban Underground, be respectively connecting taxiway 5 and connecting taxiway 51, ring corridor, underground 1 is also provided with the passage 2 and the ring road 3 being connected ground that connect periphery plot.Vehicle in the quick tunnel 4 of Urban Underground enters in ring corridor, underground 1 by connecting taxiway 5, and the vehicle in ring corridor, underground 1 also enters the quick tunnel 4 of Urban Underground by connecting taxiway 501.
The two side of connecting taxiway 5 is respectively equipped with sidewall air draft path 8 and sidewall air-supply path 9, sidewall air draft path 8 and sidewall air-supply path 9 are all positioned at the one end in the quick tunnel 4 of close Urban Underground of connecting taxiway 5; Sidewall air draft path 8 comprises air draft hoistway 601, is provided with exhaust fan 602 in air draft hoistway 601, and sidewall air-supply path 9 comprises air-supply hoistway 701, is provided with breeze fan 702 in air-supply hoistway 701; The width of air draft hoistway 601 is all not less than 1m with the width of air-supply hoistway 701; Exhaust fan 602 and breeze fan 702 are all connected with electric controller (figure does not show), and this electric controller is located at long-range, can control exhaust fan 602 and breeze fan 702 is opened simultaneously or closes simultaneously, thus realize Long-distance Control; Exhaust fan 602 and breeze fan 702 are all connected with manual overvide (figure does not show), and this manual overvide is located at scene, can control exhaust fan 602 and breeze fan 702 is opened simultaneously or closes simultaneously, thus realize field control.The lower end of the lower end of air draft hoistway 601 with air-supply hoistway 701 is communicated with by connecting taxiway 5, and the upper end of air draft hoistway 601 and the upper end of air-supply hoistway 701 are all communicated in ground, form ground air outlet 603 and ground air outlet 703 respectively; Ground air outlet 603 is provided with rain insensitive device 606, and ground air outlet 703 is provided with rain insensitive device 706.
The lower end of air draft hoistway 601 is the sidewall air outlet 6 being communicated with connecting taxiway 5, and sidewall air outlet 6 is embedded with air draft screen pack 604, and sidewall air outlet 6 is also provided with multiple air draft flow deflector 605.The lower end of air-supply hoistway 701 is the sidewall air outlet 7 being communicated with connecting taxiway 5, and sidewall air outlet 7 is embedded with powered air-purifying net 704, and sidewall air outlet 7 is also provided with multiple air-supply flow deflector 705.The height of sidewall air outlet 6 is identical with the height of connecting taxiway 5, and the height of sidewall air outlet 7 is identical with the height of connecting taxiway 5.
The side of connecting taxiway 5 is adjacent to the upstream of the direction of traffic 401 in the quick tunnel 4 of Urban Underground, opposite side is adjacent to the downstream of the direction of traffic 401 in the quick tunnel 4 of Urban Underground, sidewall air-supply path 9 is positioned at the side of connecting taxiway 5, sidewall air draft path 8 is positioned at the opposite side of connecting taxiway 5, namely sidewall air-supply path 9 is positioned at the upstream of the direction of traffic 401 in the quick tunnel 4 of Urban Underground, and sidewall air draft path 8 is positioned at the downstream of the direction of traffic 401 in the quick tunnel 4 of Urban Underground.In a word, the relative position between sidewall air-supply path 9 and sidewall air draft path 8 is determined according to the direction of traffic 401 in the quick tunnel 4 of Urban Underground.
The two side of connecting taxiway 501 is provided with sidewall air draft path 801 and sidewall air-supply path 901.Sidewall air draft path 801 concrete structure is identical with sidewall air draft path 8, and sidewall air-supply path 901 concrete structure and sidewall path 9 of blowing is identical.Just repeat no more at this.
A kind of compound underground ring corridor channel-type fire separation method, aforesaid compound underground ring corridor fire separation device is set in ring corridor, compound underground, when exhaust fan 602 and breeze fan 702 are opened simultaneously, in connecting taxiway 5, form the crossflow flowed to sidewall air draft path 8 from sidewall air-supply path 9; Similarly, the crossflow flowed to sidewall air draft path 801 from sidewall air-supply path 901 is formed in connecting taxiway 501.Cross-flow speed in connecting taxiway is not less than 6m/s and is not more than 8m/s.
Under non-fire working, the breeze fan 702 that the exhaust fan 602 in sidewall air draft path 8 and sidewall are blown in path 9 keeps closed condition, and the breeze fan that the exhaust fan in sidewall air draft path 801 and sidewall are blown in path 901 also keeps closed condition.
When underground ring corridor 1 breaking out of fire, remote auto control unlatching or nearby opened manually exhaust fan 602 or breeze fan 702, now, formed in connecting taxiway 5 between the quick tunnel 4 of Urban Underground and ring corridor, underground 1 and be not less than 6m/s and the high speed crossflow being not more than 8m/s, quick longitudinal air flow in effective quick tunnel of control Urban Underground 4 affects the smoke diffusion in ring corridor, underground 1, realizes the quick tunnel of Urban Underground 4 and separates with the high-temperature flue gas of 1 two the independent fire compartmentations in ring corridor, underground.Now, if fire-fighting and rescue vehicle is not easy to enter scene of fire by ring road 3 or passage 2, by the quick tunnel 4 of Urban Underground, pass through the high speed laterally fire prevention air curtain air-flow in connecting taxiway 5, enter scene of fire and carry out fire control smoke exhausting, and the rescue realizing personnel is evacuated.
When quick tunnel 4 breaking out of fire of Urban Underground, the breeze fan that exhaust fan in remote auto control unlatching or nearby opened manually sidewall air draft path 801 and sidewall are blown in path 901, now, in connecting taxiway 501, formation is not less than 6m/s, is not more than the high speed crossflow of 8m/s, quick longitudinal air flow in effective quick tunnel of control Urban Underground 4 or flue gas enter in ring corridor, underground 1, realize the quick tunnel of Urban Underground 4 and separate with the high-temperature flue gas of 1 two the independent fire compartmentations in ring corridor, underground.Now, if fire-fighting and rescue vehicle is not easy to enter scene of fire by the access in the quick tunnel 4 of Urban Underground, by ring corridor, underground 1, pass through the high speed laterally fire prevention air curtain air-flow in connecting taxiway 501, enter scene of fire and carry out fire control smoke exhausting, and the rescue realizing personnel is evacuated.
The present invention can significantly improve fire-fighting and rescue efficiency and reliability, and has the advantages such as construction cost is low, easy construction, the cycle is short, high efficiency, maintenance cost are low, can large-scale promotion.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (6)
1. a compound underground ring corridor channel-type fire separation device, this ring corridor, compound underground comprises ring corridor, underground and a connecting taxiway, ring corridor, described underground is communicated with the quick tunnel of described Urban Underground by described connecting taxiway, it is characterized in that, the two side of described connecting taxiway is respectively equipped with a sidewall air draft path and sidewall air-supply path, described sidewall air draft path comprises an air draft hoistway, an air exhausting device is provided with in described air draft hoistway, described sidewall air-supply path comprises an air-supply hoistway, an air-supply arrangement is provided with in described air-supply hoistway, the lower end of the lower end of described air draft hoistway with described air-supply hoistway is communicated with by described connecting taxiway, the upper end of described air draft hoistway and the upper end of described air-supply hoistway are all communicated in ground,
Described sidewall air draft path and described sidewall air-supply path are all positioned at the one end in the quick tunnel of close described Urban Underground of described connecting taxiway;
The side of described connecting taxiway is adjacent to the upstream of the direction of traffic in the quick tunnel of described Urban Underground, opposite side is adjacent to the downstream of the direction of traffic in the quick tunnel of described Urban Underground, described sidewall air-supply path is positioned at the side of described connecting taxiway, and described sidewall air draft path is positioned at the opposite side of described connecting taxiway;
The position that the position that described air draft hoistway is communicated with ground, described air-supply hoistway are communicated with ground is equipped with a rain insensitive device; The width of described air draft hoistway and the width of described air-supply hoistway are all not less than 1m.
2. ring corridor channel-type fire separation device in compound underground as claimed in claim 1, it is characterized in that, the lower end of described air draft hoistway is the sidewall air outlet being communicated with described connecting taxiway, described sidewall air outlet is embedded with an air draft screen pack, described sidewall air outlet is also provided with multiple air draft flow deflector, and the height of described sidewall air outlet is identical with the height of described connecting taxiway.
3. ring corridor channel-type fire separation device in compound underground as claimed in claim 1, it is characterized in that, the lower end of described air-supply hoistway is the sidewall air outlet being communicated with described connecting taxiway, described sidewall air outlet is embedded with a powered air-purifying net, described sidewall air outlet is also provided with multiple air-supply flow deflector, and the height of described sidewall air outlet is identical with the height of described connecting taxiway.
4. ring corridor channel-type fire separation device in compound underground as claimed in claim 1, it is characterized in that, described air exhausting device is an exhaust fan, and described air-supply arrangement is a breeze fan.
5. a compound underground ring corridor channel-type fire separation method, it is characterized in that, compound underground ring corridor fire separation device as described in claim 1-4 any one is set in ring corridor, compound underground, when described air exhausting device and described air-supply arrangement are opened simultaneously, in described connecting taxiway, form the crossflow from described sidewall air-supply path to described sidewall air draft flow channels.
6. ring corridor channel-type fire separation method in compound underground as claimed in claim 5, it is characterized in that, described cross-flow speed is not less than 6m/s and is not more than 8m/s.
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| CN115346329A (en) * | 2022-08-15 | 2022-11-15 | 中南大学 | System and method for intelligently and rapidly purifying particles in carriage |
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