CN205307654U - Ground source is stored CO2 fire extinguishing systems and is contained this fire extinguishing systems's overhead warehouse - Google Patents
Ground source is stored CO2 fire extinguishing systems and is contained this fire extinguishing systems's overhead warehouse Download PDFInfo
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- CN205307654U CN205307654U CN201620035163.8U CN201620035163U CN205307654U CN 205307654 U CN205307654 U CN 205307654U CN 201620035163 U CN201620035163 U CN 201620035163U CN 205307654 U CN205307654 U CN 205307654U
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Abstract
The utility model relates to a ground source is stored CO2 fire extinguishing systems and is contained this fire extinguishing systems's overhead warehouse. The utility model discloses a CO2 fire extinguishing systems is stored in the ground source, including liquid CO2 storage tank, nozzle and control system, liquid CO2 storage tank is connected with the nozzle through the system's pipeline that is provided with the control valve, and liquid CO2 storage tank sets up in the underground, control system includes sensor and central controller, and the sensor is connected with central controller, signal that central controller can receiving sensor to the control control valve is opened or the closing system pipeline. The beneficial effects are that: with the setting of CO2 storage tank underground, ensured constant temperature, can be accurate the withstand voltage coefficient of equipment such as design CO2 storage tank, system's pipeline and valve, greatly reduced the heat preservation cost of manufacturing cost, CO2 storage tank. Ensured CO2 storage tank constant temperature, the security performance is high, is applicable to very much heavy constructions such as automatic warehouse to reach the place of uncomfortable heshui fire controls such as computer room, library.
Description
Technical field
The utility model relates to Firefighting System field, stores CO in particular to source, a kind of ground2Firefighting System and comprise the overhead warehouse of this Firefighting System.
Background technology
In recent years, along with the high speed development of economic form, fire form is more and more severeer, the sudden fire of all kinds of occasion gets more and more, fire scale is increasing, the loss caused is also more and more higher, and particularly the fire prevention situation in various automatization warehouse is very severe, and self-extinguishing system becomes the emphasis that people pay close attention to gradually. Traditional fire extinguishing form mainly contains the Firefighting Systems such as water, water spray, water mists, ultra-fine dry powder, suction type foam, gas. Water spray fire extinguish system is a kind of water smothering system grown up on water sprinkling system basis, can be used on various solid fire and the place of transformer fire. Because its water droplet not carefully falls apart, bring difficulty to the production of concrete on fire and recovery, in addition owing to critical water amount for fire suppression is more, draining difficulty after calamity. Fine water mist fire-extinguishing system utilizes ram pump or N2For motivating force, make current form atomizing particle so that fire scene temperature rapid reduction, the surging force of water smoke and water smoke are formed on combustionmaterial surface in addition vapor permeating layers and the tempo of fire is controlled. Fine water mist fire-extinguishing system is at present extensively for the Firefighting System in the places such as iron and steel metallurgy enterprise cable tunnel, electric panel room, vault. But this system exists defects such as water source specification of quality height, Controlling System complexity, construction costs height. The advantage of the advantage that ultra-fine dry powder extinguishing agent puts out a fire chemistry and physics fire extinguishing combines, there is the organoselenocyanate to flaming combustion and to the screening of thermal radiation every, cooling effect. Ultra-fine dry powder extinguishing agent had both been applicable to the space of relative closure, was applicable to again the fire extinguishing of open place part, and fire-fighting efficiency is higher, but nozzle temperature is higher, spot fire may be there is, simultaneously because of the impact by medicament working life, it is necessary to change and fund of increasing input in time because of resume combustion. Negative pressure foam fire-extinguishing plant sucks air by the negative-pressure sucking of spray pattern on suction type foam lance, gas, liquid form foam for fire extinguishing after mixing, foam expansion is low, foaming efficiency is low, water, foam solution utilization ratio are low, waste is serious, requires high to the water source needed for fire extinguishing and power system, and extinguishing effect is poor. In smothering arrangement, " breathing out dragon " (haloalkane) is acknowledged as the fire-fighting medium of excellent results, but it is to depletion of the ozone layer very big (3-10 being fluorine Lyons is doubly).After developed country eliminates " breathing out dragon " for 1994, in air, rare gas element is as fire-fighting medium. For this reason, China eliminates " breathing out dragon " fire-fighting medium before determining 2010, forces the Firefighting System implementing to put out a fire and take as the leading factor with rare gas element in important place, to guarantee the safety in important place.
The technician of R&D institution and enterprise is constantly exploring, is studying, wish to develop the Firefighting System of a kind of superior performance, to reduce the loss that fire causes and the cost reducing construction Firefighting System, but still there is the technical barrier not yet overcome in practice.
In existing market, large-scale warehouse adopts water fire fighting system substantially, but there is the production of concrete on fire and recover difficulty, the goods loss defect such as big; The small-sized place such as computer house, Library is also not suitable for adopting water fire fighting system. Find after deliberation, current Small-sized C O2Firefighting System construction cost and maintenance cost height, be not suitable for the heavy constructions such as warehouse.
Practical novel content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that the source, ground that a kind of speed of putting out a fire is fast, cost is low stores CO2Firefighting System. Another object of the present utility model is to provide one and comprises source, ground storage CO2The overhead warehouse of integral type automatization of Firefighting System.
The source, a kind of ground that the utility model provides stores CO2Firefighting System, its technical scheme is:
Source, a kind of ground stores CO2Firefighting System, comprises liquid CO2Storage tank, nozzle and Controlling System, liquid CO2Storage tank is connected with nozzle by being provided with the system pipeline of control valve, liquid CO2Storage tank is arranged at underground; Controlling System comprises sensor and central controller, and sensor is connected with central controller, central controller can the signal of receiving sensor, and control control valve and open or close system pipeline.
Preferably, liquid CO2Storage tank is embedded in below frozen soil layer.
Preferably, CO2Firefighting System comprises protection district, and sensor is arranged in protection district, and sensor is smoke transducer and/or temperature sensor.
Preferably, liquid CO2Being provided with pressure-detecting device and liquid-adding device on storage tank, the tensimeter that pressure-detecting device comprises safety valve and is connected with safety valve, tensimeter is connected with central controller; Liquid-adding device connects outdoor carbon dioxide compressor by pipeline.
Preferably, Controlling System is PLC control system.
Preferably, Controlling System comprises automatic control module, manual control module and the emergency operation control module that can mutually switch;
System works under automatic control mode under normal circumstances, automatic detection of fires situation, once find fire, starts Firefighting System fire extinguishing immediately;
Under special circumstances or utilize during debugging test manual pattern to start Firefighting System to put out a fire;
Emergency operation control module comprises the emergency operation button being arranged on housing panel, in emergency circumstances can start Firefighting System by emergency operation button and put out a fire.
Preferably, control valve comprises magnetic valve, angle valve and stopping valve.
Preferably, CO2Firefighting System also comprises measures CO2The CO of concentration2Concentration detector and monitoring CO2The CO of fluctuations in discharge2Under meter.
Preferably, nozzle is arranged in protection district, and upwards, the ingress in protection district arranges carbonic acid gas and spurts pilot lamp and oxygen respiratory organ nozzle opening.
The utility model additionally provides a kind of overhead warehouse of integral type automatization, and its technical scheme is:
A kind of overhead warehouse of integral type automatization, comprises CO2Firefighting System, CO2The source, a kind of ground that Firefighting System is above-mentioned stores CO2Firefighting System.
Preferably, the gross building area in overhead warehouse is greater than 4800 square metres, and warehouse is divided into the fire compartment of more than 2; Liquid CO2The volume of storage tank is greater than 70m3, adopt the horizontal tank being embedded in below ground frozen soil layer, liquid CO2The design pressure of storage tank is greater than 6.0MPa; System pipeline adopts weldless steel tube; Between every, warehouse arranges a pressure relief opening on the body of wall of side outside, and mounting height is more than the 2/3 of body of wall height, and pressure relief opening area is greater than 10.2m2; Ingress, warehouse arranges carbonic acid gas and spurts pilot lamp; Ingress, warehouse above the fold is equipped with special air breathing device or oxygen respiratory organ.
Enforcement of the present utility model comprises following technique effect:
The source, a kind of ground that the utility model provides stores CO2Firefighting System, fire extinguishing speed is fast, particularly greatly reduces laid down cost. By CO2Storage tank is arranged on underground, it is ensured that constant temperature, it is possible to accurately design CO2The withstand voltage coefficient of the equipment such as storage tank, system pipeline, valve, greatly reduces production cost, CO2The insulation cost of storage tank. Ensure that CO2Storage tank constant temperature, safety performance height, is highly suitable for the heavy constructions such as automatization warehouse, and computer house, Library etc. are not suitable for the place of water fire-fighting.
The overhead warehouse of integral type automatization of the present utility model, reduces the laid down cost of Firefighting System, maintenance cost, does not substantially have goods to injure for two times, be particularly suitable in heavy construction and extensively promote after fire extinguishing.
Accompanying drawing explanation
The source, a kind of ground that Fig. 1 is the utility model embodiment stores CO2Firefighting System schematic diagram
The source, a kind of ground that Fig. 2 is the utility model embodiment stores CO2Firefighting System partial schematic diagram
Fig. 3 is the side schematic view in a kind of overhead warehouse of integral type automatization of the utility model embodiment
The source, ground that Fig. 4 is a kind of overhead warehouse of integral type automatization of the utility model embodiment stores CO2The pipeline of Firefighting System connects partial schematic diagram
1, liquid CO2Storage tank; 2, nozzle; 3, system pipeline; 4, angle valve; 5, magnetic valve; 6, stopping valve; 7, tensimeter; 8, CO2Concentration detector.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is illustrated in detail, it should be noted that, described embodiment only is intended to be convenient to understanding of the present utility model, and it does not play any restriction effect.
Shown in Fig. 1 and Fig. 2, the source, a kind of ground that the present embodiment provides stores CO2Firefighting System, comprises liquid CO2Storage tank 1, nozzle 2 and Controlling System, liquid CO2Storage tank 1 is connected with nozzle 2 by system pipeline 3, being provided with control valve in system pipeline 3, Controlling System comprises sensor and central controller, and sensor is connected with central controller, central controller can the signal of receiving sensor, and control control valve and open or close system pipeline 3. Especially, liquid CO2Storage tank 1 is arranged at underground, in the region that there is frozen soil layer, considers from insulation and construction cost, it is preferable to be arranged on below frozen soil layer; Liquid CO2Storage tank 1 can be built a vault and places or be directly embedded in soil. The present embodiment is by designing liquid state CO2Storage tank is arranged on underground, due to CO2Critical temperature is 31.06 DEG C, and general constant temperature below the frozen soil layer of ground is at about 15 DEG C, so can guarantee CO in storage tank2Temperature be 15 DEG C, keep carbonic acid gas be the liquid state of constant temperature. Existing Small-sized C O2Firefighting System, CO2Storage tank is arranged at ground, it is difficult to guarantee constant temperature, along with the change of temperature, and CO2The pressure of storage tank and system pipeline 3 also can change, in order to guarantee safety, it is necessary to strengthens the withstand voltage coefficient of pipeline, considerably increases laid down cost, and current CO2Firefighting System is not suitable for the heavy constructions such as warehouse.And the present embodiment is by liquid state CO2Storage tank is arranged on underground, it is ensured that constant temperature, it is possible to accurately design CO2The withstand voltage coefficient of the equipment such as storage tank, system pipeline 3, valve, greatly reduces the production cost of Firefighting System and liquid CO2The insulation cost of storage tank. The Firefighting System that the present embodiment provides ensure that CO2Storage tank constant temperature, safety performance height, is highly suitable for the heavy constructions such as automatization warehouse, and computer house, Library etc. are not suitable for the place of water fire-fighting.
CO2Natural content height, wide material sources, cost is low, and price is cheap, and environmentally friendly (ODP=0, GWP=1), at normal temperatures and pressures, carbonic acid gas is the gas of colorless and odorless, and molecular weight is 44.01, and its proportion is about 1.53 times of air. CO2Chemical property torpescence, both non-combustible, also not combustion-supporting, nontoxic. CO2It it is the extinguish material of very high-quality.
The principle of work of the present embodiment is, if protection district finds the condition of a fire, sensor sends guard signal, linkage sound and light alarm, at this moment CO2The control valve (the preferred magnetic valve of the present embodiment) of Firefighting System is opened, and is stored in CO2CO in storage tank2Liquid stream arrives shower nozzle through system pipeline and is ejected in protection district, CO2In protection district, absorb a large amount of heat of vaporization become gas, namely reduce the point of ignition of combustiblematerials, a large amount of CO2Gas can dilute again the air in protection district, makes combustiblematerials not have enough oxygen supplies, thus reaches extinguishing effect. Starting smoke exhaust fan after fire extinguishing to discharge fume, the article in protection district can not be caused two injuries by this Firefighting System.
Preferably, CO2Firefighting System comprises protection district, and sensor is arranged in protection district, and sensor is smoke transducer and/or temperature sensor. Shown in Figure 2, control valve comprises magnetic valve 5, angle valve 4 and stopping valve 6, and magnetic valve 5 and stopping valve 6 are with the use of, it is ensured that the security of control. Nozzle 2 is arranged in protection district, nozzle 2 opening upwards, and the ingress in protection district arranges carbonic acid gas and spurts pilot lamp; The above the fold of entrance is also equipped with special air breathing device or oxygen respiratory organ.
Preferably, each protection district roofing arranges a smoke exhaust fan, starts smoke exhaust fan and discharge fume after fire extinguishing. CO2Firefighting System also comprises measures CO in protection district2The CO of concentration2Concentration detector 8 and monitoring CO2The CO of fluctuations in discharge2Under meter, after fire extinguishing, detection CO2After concentration reaches safe grade, operator just can enter, according to CO2The amount of under meter statistics can also calculate the time of ventilation.
Shown in Figure 2, liquid CO2Being provided with pressure-detecting device and liquid-adding device (not shown) on storage tank 1, pressure-detecting device comprises safety valve and the tensimeter 7 that is connected with safety valve and pressure transmitter, and tensimeter 7 is connected with central controller, and tensimeter 7 detects CO at any time2Pressure in storage tank, when pressure is excessive, gets rid of part CO by valve2Pressure release, when pressure is crossed hour, injects CO by liquid-adding device2Pressurization, it is ensured that effective operation of system. Liquid-adding device comprises and liquid CO2The pipeline that storage tank 1 connects, and carbon dioxide compressor stopping valve 6 in the duct, magnetic valve 5 being set and being disposed in the outdoor. System pipeline 3 and CO2The withstand voltage coefficient of storage tank can be identical or different, and the material of system pipeline 3 is preferably 20 steel, and system pipeline 3 has done rotproofing, it is possible to extends work-ing life.
Controlling System comprises automatic control module, manual control module and the emergency operation control module that can mutually switch;System works under automatic control mode under normal circumstances, automatic detection of fires situation, once find fire, starts Firefighting System fire extinguishing immediately; Under special circumstances or utilize during debugging test manual pattern to start Firefighting System to put out a fire; Emergency operation control module comprises the emergency operation button being arranged on housing panel, in emergency circumstances can start Firefighting System by emergency operation button and put out a fire. Such as, three kinds of control modules can be switched by touch-screen, it is also possible to switching (automatically switching to automatic mode during manual pattern time delay) automatically. Controlling System can select PLC control system.
According to above-mentioned CO2Firefighting System is as design model, and applicant's autonomous design is researched and developed, and has built an experiment Stores Stressed Platform, for testing CO2The extinguishing effect of total flooding Firefighting System.
1, test method
By the cotton of dipped diesel oil, being placed on respectively in 3 circular cans, can diameter is about 1 meter, can height 10cm, being evenly arranged in warehouse distance floor level is about on the bracket of 1.4 meters, lights, close warehouse door and window, then start fire-extinguishing system, inwardly spray CO2, observe CO in fire extinguishing time and warehouse2Change in concentration.
2, testing apparatus, equipment and valve part
Needed for system, device, equipment and valve part refer to following table:
A steel construction test warehouse is built in 2.1 designs, investment, and warehouse physical dimension length × wide × height is 5 × 5 × 10 (m), and storehouse body adopts rock cotton board assembled.
2.2 watch-keeping cubicle and CO2Storage tank is positioned at the vault immediately below warehouse (below frozen soil layer). System has installed safety valve, tensimeter 7, pressure transmitter, the changing conditions of real-time monitoring system pressure, if pressure superelevation, safety valve will open pressure release, securing system safety.
2.3 system design 5 nozzles 2, spray CO from bottom to top2, nozzle 2 locating distance overhead highly about 10cm.
3, process of the test
3.1 to CO2The CO of tank fill design consumption2Liquid, checks after having filled that each equipment, valve part are in standard state; Combustiblematerials (cotton of dipped diesel oil) is placed on bracket.
3.2 light combustiblematerials, and personnel all leave warehouse, close warehouse door and window.
3.3 click startup button, spray CO in warehouse2Liquid.
3.4 by case of fire in high-definition camera Real Time Observation warehouse.
3.5 by PLC Real-Time Monitoring and record CO2Flow and warehouse CO2The testing datas such as concentration, and show in real time in graph form.
3.6 by PLC Real-Time Monitoring and record CO2Pressure of storage tank changes.
4, conclusion (of pressure testing)
4.1 due to CO2In test warehouse, absorb a large amount of amount of heat, reduce combustiblematerials ignition temperature, make combustiblematerials stop burning.
The CO of 4.2 ejections2Air in dilution test warehouse, makes combustiblematerials can not get enough oxygen and extinguish.
4.3 according to test situation, and flame can extinguish in 1 minute, and fire extinguishing speed is fast, and without any residual, protects goods.
This pilot system, through test of many times, proves CO2Total flooding Firefighting System can meet fire-fighting requirements.
Shown in Figure 3, the present embodiment additionally provides one and comprises CO2The overhead warehouse of integral type automatization of Firefighting System, CO2The source, a kind of ground that Firefighting System is above-mentioned stores CO2Firefighting System. In the present embodiment, the gross building area in the overhead warehouse of automatization is 4817.15 square metres, wherein 3978.04 square metres, storehouse, 839.11 square metres, loading place. Warehouse is divided into 2 fire compartments, being only of a size of (long × wide × high) of each fire compartment: 90 × 22 × 32 meters.Warehouse is automatization warehouse, and without operator in warehouse, design adopts CO2Total flooding Firefighting System. According to design, CO2The volume of storage tank is 70m3, store the CO of 46577.6kg2. Due to CO2Critical temperature lower, be 31.06 DEG C, emergent pressure is higher, is 7.3MPa. The present embodiment adopts horizontal tank, is embedded in below ground frozen soil layer, and the underground constant temperature according to 15 DEG C calculates, it is determined that CO in storage tank2Temperature is 15 DEG C, and corresponding saturation pressure is 5.1MPa, it is contemplated that certain security, it is determined that CO2The design pressure of storage tank is 6.0MPa. Circuit design pressure is identical with tank design pressure with valve design pressure, is 6.0MPa. Vote pipeline adopts seamless steel tubes for liquid service, and material is 20 steel, pressure rating PN6.4MPa. According to the data that test records, 2 can be selectedPipeline, be welded to connect, pipeline does rotproofing. Valve used in system, pressure-bearing is not less than piping design pressure. Between every, warehouse arranges a pressure relief opening on the body of wall of side outside, and mounting height is more than the 2/3 of body of wall height, and pressure relief opening area is 10.2m2. For reaching safety requirements, ingress, warehouse arranges carbonic acid gas and spurts pilot lamp. Ingress, warehouse above the fold is equipped with special air breathing device or oxygen respiratory organ.
The Controlling System selected comprises automatic control module, manual control module and the emergency operation control module that can mutually switch; System works under automatic control mode under normal circumstances, automatic detection of fires situation, once find fire, starts Firefighting System fire extinguishing immediately; Under special circumstances or utilize during debugging test manual pattern to start Firefighting System to put out a fire; Emergency operation control module comprises the emergency operation button being arranged on housing panel, in emergency circumstances can start Firefighting System by emergency operation button and put out a fire.
The control valve device of the present embodiment as shown in Figure 4, liquid CO2Two liquid outlets be that the stopping valve 6 of DN250 is connected respectively with model, the magnetic valve 5 being then DN350 with two models is connected, and is connected with the shower nozzle being arranged in warehouse finally by system pipeline 3. Liquid CO2Storage tank is also provided with tensimeter 7 and pressure relief opening. Liquid CO2Magnetic valve 5 in the duct, angle valve 4 and stopping valve 6 control by arranging for storage tank and outdoor liquid-adding device. In figure, DN (nominaldiameter) is nominal diameter, also known as average external diameter (meanoutsidediameter), is the general bore of various pipe and pepeline fittings. A numeral flag closelyed follow below in nominal logical footpath letter " DN ". Nominal diameter metric system mm represents. BAR is pressure unit, and 1BAR about equals 0.1MPa.
The overhead warehouse of integral type automatization of the present embodiment, reduces laid down cost and the maintenance cost of Firefighting System, does not substantially have goods to injure for two times, be particularly suitable in heavy construction and extensively promote after fire extinguishing.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection domain; although having done to explain to the utility model with reference to better embodiment; it will be understood by those within the art that; the technical solution of the utility model can be modified or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. source, a ground stores CO2Firefighting System, comprises liquid CO2Storage tank, nozzle and Controlling System, it is characterised in that: described liquid CO2Storage tank is connected with described nozzle by being provided with the system pipeline of control valve, described liquid CO2Storage tank is arranged at underground;Described Controlling System comprises sensor and central controller, and described sensor is connected with described central controller, and described central controller can receive the signal of described sensor, and controls described control valve and open or close described system pipeline.
2. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described liquid CO2Storage tank is embedded in below frozen soil layer.
3. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described CO2Firefighting System comprises protection district, and described sensor is arranged in described protection district, and described sensor is smoke transducer and/or temperature sensor.
4. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described liquid CO2Being provided with pressure-detecting device and liquid-adding device on storage tank, the tensimeter that described pressure-detecting device comprises safety valve and is connected with safety valve, described tensimeter is connected with described central controller; Described liquid-adding device connects outdoor carbon dioxide compressor by pipeline.
5. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described Controlling System is PLC control system.
6. store CO according to the arbitrary described source, a kind of ground of Claims 1 to 52Firefighting System, it is characterised in that: described Controlling System comprises automatic control module, manual control module and the emergency operation control module that can mutually switch;
System works under automatic control mode under normal circumstances, automatic detection of fires situation, once find fire, automatically starts Firefighting System fire extinguishing;
Under special circumstances or utilize during debugging test manual pattern to start Firefighting System to put out a fire;
Emergency operation control module comprises the emergency operation button being arranged on housing panel, in emergency circumstances can start Firefighting System by emergency operation button and put out a fire.
7. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described control valve comprises magnetic valve, angle valve and stopping valve.
8. source, a kind of ground according to claim 1 stores CO2Firefighting System, it is characterised in that: described CO2Firefighting System also comprises measures CO2The CO of concentration2Concentration detector and monitoring CO2The CO of fluctuations in discharge2Under meter.
9. source, a kind of ground according to claim 3 stores CO2Firefighting System, it is characterised in that: described nozzle is arranged in protection district, and upwards, the ingress in described protection district is provided with carbonic acid gas and spurts pilot lamp and oxygen respiratory organ described nozzle opening.
10. the overhead warehouse of integral type automatization, it is characterised in that: comprise CO2Firefighting System, described CO2Firefighting System is that the arbitrary described source, a kind of ground of claim 1～9 stores CO2Firefighting System.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477806A (en) * | 2016-01-14 | 2016-04-13 | 北京市京科伦冷冻设备有限公司 | Ground-source CO2 storage fire extinguishing system and high rack warehouse with same |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477806A (en) * | 2016-01-14 | 2016-04-13 | 北京市京科伦冷冻设备有限公司 | Ground-source CO2 storage fire extinguishing system and high rack warehouse with same |
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