CN212214437U

CN212214437U - Fixing and moving combined compressed air foam fire extinguishing system suitable for super high-rise building

Info

Publication number: CN212214437U
Application number: CN202020120654.9U
Authority: CN
Inventors: 张和平; 徐学军; 程旭东; 何坤
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-12-25
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a solid combination compressed air foam fire extinguishing systems that moves suitable for super high-rise building, include: fixed compressed air foam fire extinguishing module, the special connector of compressed air foam system and the special transport riser of compressed air foam, wherein, fixed compressed air foam fire extinguishing module arranges at super high-rise building top layer equipment level, the layer of taking refuge, and the special connector of compressed air foam system sets up at the first floor is outdoor, and the special transport riser setting of compressed air foam that reaches perpendicularly to the summit is at this super high-rise building, the utility model discloses an electric butterfly valve carries out the subregion to the fire control riser, when the conflagration breaing out, can close corresponding electric butterfly valve according to the position of the emergence of conflagration, can shorten the time that the foam of putting out a fire carried to the floor of catching fire, has avoided the too big damage that causes the pipe fitting of pipeline bottom pressure.

Description

Fixing and moving combined compressed air foam fire extinguishing system suitable for super high-rise building

Technical Field

The utility model relates to a fire extinguishing systems's among super high-rise building technical field, concretely relates to solid combination compressed air foam fire extinguishing systems that moves suitable for super high-rise building.

Background

In recent 10 years, super high-rise buildings in China are in a rapid development period, most of first-line and second-line cities begin to step into the super high-rise times at present, and the super high-rise buildings with milestone significance gradually become new business cards of cities. However, most super high-rise buildings are located in urban centers with dense population, the number of floors is large, the functions are complex, fire hazards are many, hotels, restaurants, entertainment, offices and shopping are integrated, once a fire accident happens, the fire is rapid, the consequences are serious, a serious accident of group death and group injury is often caused, for example, a building in a building with the height of 30 floors and 159m in a subsidiary culture center of a central television station in 2009, 2 months and 9 days; 19 th month in 2009 occurred in international square building fire in central ring in south jing of Jiangsu province.

The existing fire-fighting equipment is difficult to meet the fire-fighting and rescue requirements of super high-rise buildings, the height of a plurality of super high-rise buildings exceeds the limit height of water transportation of the existing fire truck, if a fire disaster occurs on a higher floor, because the vertical distance is large, the supply of fire-fighting media is a great problem, the water supply of the existing conventional fire truck can only reach 100 meters, the fire-fighting water can not be supplied to the higher floor in a large amount, the fire-fighting efficiency of the traditional water fire-fighting system is relatively low, the consumption of water during fire fighting is large, and the water storage capacity of a fire-fighting water tank in the building can only maintain the fire-fighting requirement of half an hour generally. In the face of increasingly severe fire-fighting situation of super high-rise buildings, the fire-fighting capacity of the existing fire-fighting equipment taking water as a main fire-fighting agent is not matched with the rapid development of the super high-rise buildings, and the traditional fire-fighting equipment taking water as a fire-fighting agent and the technical means for extinguishing fire cannot meet the requirements of the fire-fighting and rescue task of the super high-rise fire in the face of super high-rise buildings.

Compressed air foam is a globally accepted high-efficiency fire extinguishing agent at present, the fire extinguishing efficiency of the compressed air foam is 4-5 times that of the traditional foam and 7-10 times that of water, and the compressed air foam can be tried and applied to super high-rise buildings. The compressed air foam has strong adhesiveness, has good adhesion effect on a vertical smooth surface, and can effectively extinguish fire and continuously insulate heat and cool. Compressed air foam has the efficient ability of putting out a fire, can accomplish the conflagration in shorter time and put out a fire and save life, so the water consumption can greatly reduced, because density is low, it can be highly big than transporting of water to transport the height, but the experiment shows that the effective transport height that can guarantee the compressed air foam of putting out a fire is 230m, the effective transport height of compressed air foam still can be surpassed to many super high-rise building's building height, when the conflagration takes place the floor height and effectively transports the height, still can't effectively put out a fire.

In order to solve the above-mentioned problems, a method for designing a compressed air foam fire extinguishing system suitable for super high-rise buildings is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the 'fixing and moving combined' compressed air foam fire extinguishing system suitable for the super high-rise building can effectively convey compressed air foam to each floor for fire extinguishing by a 'fixing and moving combined' method aiming at the super high-rise building with the height larger than the effective conveying height of the compressed air foam system.

The utility model adopts the technical proposal that: a fire suppression system for ultra high rise buildings using a combination of fixed and movable compressed air foam, comprising: the fire fighting system comprises a fixed compressed air foam fire extinguishing module, a special compressed air foam system combiner and a special compressed air foam conveying vertical pipe, wherein the fixed compressed air foam fire extinguishing module is arranged at the top layer, the equipment layer and the refuge layer of the super high-rise building, and the fixed compressed air foam fire extinguishing module provides compressed air foam downwards or upwards and is positioned on a floor with the building height exceeding the effective conveying height of the compressed air foam for fire; the special connector for the compressed air foam system is arranged outside the first floor, and the main compressed air foam urban war chariot vertically and upwards conveys compressed air foam to a fire-starting floor through the special connector when a fire disaster occurs on a floor with the building height not exceeding the effective conveying height; the special compressed air foam conveying vertical pipe vertical to the top is arranged in the super high-rise building, the fire extinguishing system adopts special fire-fighting power supply in the super high-rise building to provide power, the fire extinguishing system can not be interfered by other power supplies in a power-off mode to work when a fire disaster occurs in the building, and the fire extinguishing system is configured with a diesel generator as a standby power supply, so that the fire extinguishing system can also work continuously under the condition that all power systems are damaged.

Further, the effective conveying height of compressed air foam for fire extinguishing is ensured to be 230m, a certain safety margin is considered, 200m is taken as a subarea, and when the building height is increased by 200m, a fixed compressed air foam generating device is additionally arranged.

Further, the water tank is used for storing the fire-fighting water, leads to pipe and provides the water source for compressed air foam generating device, and the foam of continuing to spray according to 1 hour designs, and foam stoste storage tank provides the foam stoste for compressed air foam generating device through the foam pipe, and the foam of continuing to spray according to 1 hour designs equally, and foam generating device can adopt the compressed air foam system who has satisfied the flow requirement of putting out a fire on the market and produce the device can.

Further, the pipeline system is used for conveying compressed air foam to each floor, and specifically comprises a first electric butterfly valve, a first manual butterfly valve, a special vertical pipe, each layer of horizontal pipe, a quick joint, a fire hydrant box, a fire hose, a second electric butterfly valve, a second manual butterfly valve, a CAFS special adapter, a third electric butterfly valve and a third manual butterfly valve, wherein the special vertical pipe is a fire control vertical pipe which is arranged in the building and is special for conveying the compressed air foam, penetrates through each floor, is preferably a DN80 steel pipe in pipe diameter and resists pressure of 2.5 MPa; each layer of horizontal pipe is led out from the special vertical pipe at each layer of building; the end part of each layer of transverse pipe is connected with a quick connector; the fire hose water gun is arranged in the fire hydrant box, the first electric butterfly valve is arranged between the compressed air foam generating device and the special vertical pipe which is arranged in the super high-rise building and is communicated with the upper and lower parts of the compressed air foam generating device, the first electric butterfly valve is used for controlling the on-off of the compressed air foam generating device and the special vertical pipe and can be manually controlled, a control signal needs to be fed back to a fire control center, the second electric butterfly valve and the second manual butterfly valve are arranged on the special vertical pipe for compressed air foam, the special vertical pipe for compressed air foam is partitioned, the damage of facilities such as pipe fittings and the like caused by overlarge pressure at the bottom of a pipe network is avoided, the time for foam to reach a fire-starting floor and the pressure establishment time can be effectively shortened, the vertical interval of the second vertical butterfly valve is not more than 80m, the first manual butterfly valve is arranged between each layer of the horizontal pipe and, opening a first manual butterfly valve; the second manual butterfly valve is connected with the special vertical pipe, and the two sets of compressed air foam special adapters are arranged on the ground, are connected with the special vertical pipe and are used for being quickly connected with the movable compressed air foam generating device.

Compared with the prior art, the utility model the advantage lie in:

(1) the utility model discloses a "solid combination that moves, can effectively carry the compressed air foam to the building height and effectively transport every floor of high-rise building of height to put out a fire, solved super high-rise building and upwards transported the problem of fire extinguishing medium difficulty.

(2) The utility model discloses an electric butterfly valve carries out the subregion to the fire control riser, when the conflagration breaing out, can close corresponding electric butterfly valve according to the position of the emergence of conflagration, can shorten the time that the foam of putting out a fire carries to the floor of catching a fire, has avoided the too big damage that causes the pipe fitting of pipeline bottom pressure moreover.

Drawings

Fig. 1 is the schematic diagram of the super high-rise fixed-moving combined compressed air foam system of the utility model.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in figure 1, the 'fixed moving combined' compressed air foam system of the super high-rise building mainly comprises three parts: the fixed compressed air foam fire extinguishing module is arranged on a top equipment layer and a refuge layer of the super high-rise building, provides compressed air foam downwards or upwards, and aims at the fire disaster and is positioned on a floor with the building height exceeding the effective conveying height of the compressed air foam; the special connector for the compressed air foam system is arranged outside the first floor, and the main compressed air foam urban war chariot vertically and upwards conveys compressed air foam to a fire-starting floor through the special connector when a fire disaster occurs on a floor with the building height not exceeding the effective conveying height; a vertical top-to-top compressed air foam dedicated transfer riser is disposed in the super high-rise building. This fire extinguishing system adopts special fire control power consumption in the super high-rise building to provide power, guarantees when the building conflagration breaks out, and this fire extinguishing system can not receive other power outage interference work to dispose diesel generator as stand-by power supply, guarantee under the whole circumstances of damaging of all electric power system, this fire extinguishing system can also continuously work.

The effective delivery height of compressed air foam for fire extinguishment is ensured to be 230m, a certain safety margin is considered, 200m is taken as a subarea, and when the building height is increased by 200m, a fixed compressed air foam generating device is additionally arranged. Taking a 400m building as an example, a schematic diagram of the system is shown in fig. 1. The system mainly comprises: (1) the compressed air foam generating device, the water tank and the foam stock solution storage tank are arranged at the top of the staircase of the super high-rise building or on the refuge layer; (2) is arranged in the pipeline system in the building.

The water tank is used for storing the fire-fighting water, and the water pipe provides the water source for compressed air foam generating device, and foam according to 1 hour lasts sprays the foam and designs, and foam stoste storage tank provides the foam stoste for compressed air foam generating device through the foam pipe, and foam according to 1 hour lasts sprays the foam and designs equally, and foam generating device can adopt on the market current compressed air foam system generating device that satisfies the flow requirement of putting out a fire can.

The pipeline system is used for conveying compressed air foam to each floor, and specifically comprises a first electric butterfly valve, a first manual butterfly valve, a special vertical pipe, each layer of transverse pipe, a quick joint, a fire hydrant box, a fire hose, a second electric butterfly valve, a second manual butterfly valve, a special adapter for CAFS, a third electric butterfly valve and a third manual butterfly valve. Wherein, the special vertical pipe is a fire-fighting vertical pipe which is arranged in the building and is special for conveying compressed air foam, penetrates through each floor, has the pipe diameter of DN80 steel pipe and resists pressure of 2.5 MPa; each layer of horizontal pipe is led out from the special vertical pipe at each layer of building; the end part of each layer of transverse pipe is connected with a quick connector; the fire hose water gun is arranged in the fire hydrant box. The first electric butterfly valve is arranged between the compressed air foam generating device and the special vertical pipe which is directly communicated with the upper part and the lower part in the super high-rise building, is used for controlling the on-off of the compressed air foam generating device and the special vertical pipe, can be manually controlled, and control signals need to be fed back to a fire control center. The second electric butterfly valve (manual butterfly valve) is arranged on the vertical pipe special for the compressed air foam, the vertical pipe special for the compressed air foam is partitioned, the damage of the pipe fittings and other facilities caused by the overlarge pressure at the bottom of the pipe network is avoided, and the time for the foam to reach the fire floor and the pressure establishment time can be effectively shortened. The vertical spacing of the second vertical butterfly valve should not be greater than 80 m. The first manual butterfly valve is arranged between each layer of transverse pipe and the quick connector, the first manual butterfly valve and the quick connector are fixed in the fire hydrant box, and the first manual butterfly valve is opened after the water hose and the water gun are connected when a fire occurs; the second manual butterfly valve is connected with the special vertical pipe. The two sets of special compressed air foam adapters are arranged on the ground, are connected with the special vertical pipe and are used for being quickly connected with the movable compressed air foam generating device.

Embodiment 1: an auto start mode. When a certain floor has the condition of a fire to take place in the super high-rise building, fire monitoring alarm system signals, through control system identification and positioning, if take place more than 43 layers, then close the electric butterfly valve below the floor that catches fire to open first electric butterfly, in the special riser is carried fast to the compressed air foam, then carry to the floor that catches fire, meet special rifle of compressed air foam with the hosepipe fast by fireman or the professional fire extinguishing personnel of floor, open first manual butterfly valve, put out a fire to the ignition point fast. If the fire disaster happens below 43 floors, two ways can be selected for extinguishing fire, the first way is to select a 43-floor fixed type compressed air foam fire extinguishing system, at the moment, an electric valve above 43 floors and an electric butterfly valve below a fire floor are closed, a first electric butterfly is opened, compressed air foam is quickly conveyed into a special vertical pipe and then conveyed to the fire floor, a special gun for the compressed air foam is quickly connected with a water hose by a fireman or a professional fire extinguisher on the floor, and the first manual butterfly valve is opened to quickly extinguish the fire to a fire point; if the ground foam fire engine arrives in time and also can select upwards to transport the compressed air foam through the special adapter of compressed air foam of outdoor setting to put out a fire, open this moment catch fire below the floor all motorised valves can, then meet the special rifle of compressed air foam and hosepipe fast by fireman or the professional fire extinguisher of floor, open first manual butterfly valve, put out a fire fast to the ignition.

Embodiment 2: a manual start mode. When a fire condition occurs on a certain floor, a floor person quickly presses a manual starting button of a fire hydrant box to start the compressed air foam generating device, after the fire condition is confirmed by a fire control room, compressed air foam is quickly conveyed to a fire floor, a fireman or a professional fire extinguisher on the floor quickly connects a special gun for the compressed air foam with a water hose, and a first manual butterfly valve is opened to quickly extinguish a fire point.

Claims

1. The utility model provides a solid moves and combines compressed air foam fire extinguishing systems suitable for super high-rise building which characterized in that: the method comprises the following steps: the fire fighting system comprises a fixed compressed air foam fire extinguishing module, a special compressed air foam system combiner and a special compressed air foam conveying vertical pipe, wherein the fixed compressed air foam fire extinguishing module is arranged at the top layer, the equipment layer and the refuge layer of the super high-rise building, and the fixed compressed air foam fire extinguishing module provides compressed air foam downwards or upwards and is positioned on a floor with the building height exceeding the effective conveying height of the compressed air foam for fire; the special connector for the compressed air foam system is arranged outside the first floor, and the main compressed air foam urban war chariot vertically and upwards conveys compressed air foam to a fire-starting floor through the special connector when a fire disaster occurs on a floor with the building height not exceeding the effective conveying height; the special compressed air foam conveying vertical pipe vertical to the top is arranged in the super high-rise building, the fire extinguishing system adopts special fire-fighting power supply in the super high-rise building to provide power, the fire extinguishing system can not be interfered by other power supplies in a power-off mode to work when a fire disaster occurs in the building, and the fire extinguishing system is configured with a diesel generator as a standby power supply, so that the fire extinguishing system can also work continuously under the condition that all power systems are damaged.

2. A fire extinguishing system of the type used in conjunction with fixed and movable compressed air foam for very high rise buildings according to claim 1 wherein: the effective delivery height of compressed air foam for fire extinguishment is ensured to be 230m, a certain safety margin is considered, 200m is taken as a subarea, and when the building height is increased by 200m, a fixed compressed air foam generating device is additionally arranged.

3. A fire extinguishing system of the type used in conjunction with fixed and movable compressed air foam for very high rise buildings according to claim 1 wherein: this system still includes water tank and foam stoste storage tank, the water tank is used for storing the fire-fighting water, and the water pipe provides the water source for compressed air foam generating device, designs according to 1 hour's foam continuous injection foam, and foam stoste storage tank provides the foam stoste for compressed air foam generating device through the foam pipe, designs according to 1 hour's foam continuous injection foam equally, and foam generating device can adopt on the market current compressed air foam system generating device who satisfies the flow requirement of putting out a fire can.

4. A fire extinguishing system of the type used in conjunction with fixed and movable compressed air foam for very high rise buildings according to claim 1 wherein: the system also comprises a pipeline system, wherein the pipeline system is used for conveying compressed air foam to each floor, and specifically comprises a first electric butterfly valve, a first manual butterfly valve, a special vertical pipe, each layer of transverse pipe, a quick joint, a fire hydrant box, a fire hose, a second electric butterfly valve, a second manual butterfly valve, a CAFS special adapter, a third electric butterfly valve and a third manual butterfly valve, wherein the special vertical pipe is a fire control vertical pipe which is arranged in the building and is special for conveying the compressed air foam, penetrates through each floor, is preferably a DN80 steel pipe in pipe diameter and resists pressure of 2.5 MPa; each layer of horizontal pipe is led out from the special vertical pipe at each layer of building; the end part of each layer of transverse pipe is connected with a quick connector; the fire hose water gun is arranged in the fire hydrant box, the first electric butterfly valve is arranged between the compressed air foam generating device and the special vertical pipe which is arranged in the super high-rise building and is communicated with the upper and lower parts of the compressed air foam generating device, the first electric butterfly valve is used for controlling the on-off of the compressed air foam generating device and the special vertical pipe and can be manually controlled, a control signal needs to be fed back to a fire control center, the second electric butterfly valve and the second manual butterfly valve are arranged on the special vertical pipe for compressed air foam, the special vertical pipe for compressed air foam is partitioned, the damage of facilities such as pipe fittings and the like caused by overlarge pressure at the bottom of a pipe network is avoided, the time for foam to reach a fire-starting floor and the pressure establishment time can be effectively shortened, the vertical interval of the second vertical butterfly valve is not more than 80m, the first manual butterfly valve is arranged between each layer of the horizontal pipe and, opening a first manual butterfly valve; the second manual butterfly valve is connected with the special vertical pipe, and the two sets of compressed air foam special adapters are arranged on the ground, are connected with the special vertical pipe and are used for being quickly connected with the movable compressed air foam generating device.