CN202136713U - Normal, stable and high pressure water mist fire extinguishing system - Google Patents
Normal, stable and high pressure water mist fire extinguishing system Download PDFInfo
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- CN202136713U CN202136713U CN201120233188U CN201120233188U CN202136713U CN 202136713 U CN202136713 U CN 202136713U CN 201120233188 U CN201120233188 U CN 201120233188U CN 201120233188 U CN201120233188 U CN 201120233188U CN 202136713 U CN202136713 U CN 202136713U
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Abstract
The utility model relates to a normal, stable and high pressure water mist fire extinguishing system, in particular to a high pressure water mist fire extinguishing system applied to the urban mass transit or the similar engineering. The normal, stable and high pressure water mist fire extinguishing system comprises a water supply system, a spraying system and a control and alarm system, wherein the water supply system comprises an inflow regulating water tank, a pressurizing and water supply pump unit, a bypass flow pressure stabilizing pipeline, a water distributing pipeline, a water source pipe and the like; the spraying system comprises a special high pressure water mist spray nozzle and a high pressure water mist spray gun; the control and alarm system comprises a control unit and an alarm unit; the control unit comprises a water supplementing control part, a start and shutdown control part for the pump unit and a regional valve bank switching control part; and the alarm unit comprises an electric detection system, an alarm bell, an audible and visual alarm, a spraying indicating lamp and the like. In the utility model, the normal operating pressure of a front water distribution pipeline of a regional valve bank is reduced to the normal pressure and a complete set of high pressure water mist fire extinguishing system applied to a rail transit station is systematically provided, so that the high pressure water mist fire extinguishing system is more suitable for the characteristics of construction and operation of the rail transit station in China.
Description
Technical field
The utility model relates to a kind of high-pressure fine water mist fire-extinguishing system, particularly relates to a kind of high-pressure fine water mist fire-extinguishing system that is applied to the normal pressure voltage stabilizing in urban track traffic and similar engineering field.
Background technology
The application of high-pressure fine water mist fire-extinguishing system in urban track traffic and similar engineering, the open system or the chain preact of the electric list system that adopt level-2 area valve group to control more.The automatic control mode of open system is to start regional control valve group after receiving the automatic fire alarm signal; Pipeline water-filling after the valve group; When treating that distributing pipe line pressure drops to the threshold pression of voltage-stabilizing system or when limiting time interior conduit pressure can't reach the specified pressure of voltage-stabilizing system, start the pressurization main pump; The automatic control mode of preact system is to receive opened areas control valve behind the automatic fire alarm signal; Pipeline water-filling behind valve; Change wet pipe system into; After treating that shower nozzle breaks, when distributing pipe line pressure drops to the threshold pression of voltage-stabilizing system or when limiting time interior conduit pressure can't reach the specified pressure of voltage-stabilizing system, start the pressurization main pump.This shows that these two kinds of systems all need be provided with voltage-stabilizing system, and all the operating pressure of shower nozzle is provided by stabilized pressure pump for some time, and be limited to the normality voltage endurance capability of pipeline and annex, voltage-stabilizing system provides pressure to be controlled at 1.0MPa～1.2MPa more.
Mainly there is following problem in said system in practical application: 1, preceding all distributing pipe lines of zone valve group that are arranged so that of voltage-stabilizing system are under the high pressure conditions more than the 1.0MPa for a long time; Material, quality, installation, maintenance to pipeline have all proposed very high requirement; Increased the probability of pipeline generation seepage, booster; In case take place to leak or pipe explosion accident, can produce very big destructive effects, even personal security is formed threat; Simultaneously the pressure during pipe leakage descends and very easily causes main pump and open automatically, and its destructiveness of main pump pressure of 14MPa will be difficult to the imagination.2, the minimum operating pressure of heavy pressure fine spray shower nozzle operate as normal is 10MPa; Therefore the adherence pressure of stabilized pressure pump 1.0MPa can't guarantee the operate as normal of shower nozzle; Be difficult to form normal atomizing effect, so the maintenance of 1.0MPa pressure is no practical significance for system works; When 3, simply connected lock preact system is used for important electric equipment fire, report by mistake in case automatic alarm system is malfunctioning, or the condition of a fire is through human intervention, eliminating and shower nozzle is broken, because of the Region control valve is opened automatically, distributing pipe line will water-filling in the zone of protection.System also needs distributing pipe line water behind the exclusionary zone valve when recovering, prolong system recovery time, and quicken corrosive pipeline.If seepage takes place then loses bigger in pipeline under the effect of voltage-stabilizing system pressure.When 4, simply connected lock preact system or open system are applied to important electrical equipment room; In case need artificial shutdown system can stop water spray behind the shower nozzle water spray; And the fire working servant has very big hysteresis quality and error in judgement for the judgement of inside fire situation; And determine the actual water spray that stops and also needing certain time interval from making; These all can cause system water spray excessive, thereby possibly cause water stain pollution, increase indoor humidity, form problems such as circuit short stream risk and delay system recovery time.
Therefore, the high-pressure fine water mist fire-extinguishing system that is applied to rail traffic station and similar engineering at present is provided with and has certain deficiency, need improve.
The utility model content
The purpose of the utility model is to provide a kind of and is more suitable in the high-pressure fine water mist fire-extinguishing system of Chinese urban rail transit construction, operation characteristic; This system not only can give full play of the advantage of high-pressure fine water mist fire-extinguishing system self; And can effectively evade the operation risk of distributing pipe line normality high pressure; Realization in the guard plot by the timely prevention and control of spot fire that resume combustion etc. causes, avoid the secondary accident that causes because of the warning system wrong report, reduce system's water spraying time to greatest extent and reduce water stain; Shorten the recovery time of equipment in the protection zone, and then raising system greatly moves, security, economy and the reliability of maintenance.
For realizing above-mentioned purpose, the utility model is taked following technical scheme:
A kind of high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing comprises water system, spurts system and control and three parts of warning system, wherein:
Said water system comprises into water regulating tank, pressurizing feedwater pump group, by-pass flow voltage stabilizing pipeline, distributing pipe line and water source tube etc., before said water inlet regulating tank is located at pressurizing feedwater pump group, connects water source tube and pressurizing feedwater pump group, supplies the suction of pump group to use; The pressurizing feedwater pump is mounted on between the water regulating tank and distributing pipe line, is made up of the high-pressure plunger pump more than two, and high-pressure fine water mist fire-extinguishing system fire-fighting work pressure is provided; By-pass flow voltage stabilizing pipeline directly connects water source tube and distributing pipe line, utilizes water source feed pressure (containing the small pump supercharging) for high-pressure fine water mist fire-extinguishing system the pipeline pressure under the non-fire working to be provided; Distributing pipe line is in order to connect water system and to spurt system, with transmission, delivery system operating pressure and flow;
The said system of spurting comprises the nozzle specially used and high pressure fine water fog spraying gun of heavy pressure fine spray, is arranged on the interior range pipe of zone of protection, as the terminal of spurting of fire extinguishing system, in order to spurt the fine mist fire-fighting medium;
Said control and warning system are divided into control module and alarm unit; Said control module comprises the moisturizing control at water inlet regulating tank place in the water system; Realize the regulating water level in the water inlet regulating tank through switching of control inlet valve or the start and stop of moisturizing force (forcing) pump; The start and stop control of pressurizing feedwater pump group; Control signal through receiving from Region control valve group or fire protection control room realizes the manual control function of reaching automatically of pump group start and stop, and has the function and the Region control valve group open and close controlling of on-the-spot emergency start pump group; Said alarm unit comprise the electrical resistivity survey examining system and the warning alarm bell that are arranged in the zone of protection, be arranged at the audible-visual annunciator outside the guard plot and spurt indicator lamp and/or Region control valve group after the interior low pressure monitor and alarm system of distributing pipe line.
Water inlet regulating tank (containing the moisturizing booster water pump), pressurizing feedwater pump group and by-pass flow voltage stabilizing pipeline are all concentrated and are arranged in the special-purpose fire pump room in station; Distributing pipe line connects fire pump room and each guard plot; And form the cyclic ligand water conduit tube AT STATION, each guard plot range pipe all thus the ring-type main pick out.
The high-pressure fine water mist fire-extinguishing system of said normal pressure voltage stabilizing can be open system, signal doubly-linked lock preact system or signal doubly-linked lock and repeats to open and close the preact system.The concrete form that spurts system is difference according to the difference of protection zone type and to some extent, and control corresponding and warning system also will change thereupon with it.When system plays protection during compartmentation or that the fire spread property of position is set is strong and, for example be arranged on shield door place, the capable district of rail and adopt open system when less demanding for water stain; When system is arranged at important electrical equipment room and preventing from mistake in jetting had relatively high expectations, as adopt signal doubly-linked lock preact system when being arranged on communication, signalling arrangement machine room; When system be arranged on electric substation etc. to water stain requirement very strict local time adopt signal doubly-linked lock to repeat to open and close the preact system.
Said heavy pressure fine spray shower nozzle can adopt deluge system, automatic sprinkler or repeat to open and close shower nozzle corresponding to the system type of guard plot of living in, specifically selects the shower nozzle of different water spray characteristic coefficients for use according to required water spray intensity.The heavy pressure fine spray open system; Adopt deluge system; Alarm unit comprises electrical resistivity survey examining system and/or the first conduit system that is arranged in the zone of protection in control and the warning system; Through the automatic unlatching of wet type, dry type elder generation's conduit or electrical resistivity survey examining system realization Region control valve, have fire protection control room remote opening and on-site manual opening device simultaneously, and when driving valve, start the pressurization main pump under the fire working.High-pressure fine water mist fire-extinguishing system can be signal doubly-linked lock preact system; The system of spurting adopts automatic sprinkler or repeats to open and close shower nozzle in the heavy pressure fine spray signal doubly-linked lock preact system, in control and the warning system alarm unit comprise electrical resistivity survey examining system and warning alarm bell in the zone of protection, be arranged at the audible-visual annunciator outside the guard plot and spurt indicator lamp and Region control valve group after the interior low pressure monitor and alarm system of distributing pipe line.Signal doubly-linked lock preact system adopts automatic sprinkler; Interior electrical resistivity survey examining system of zone of protection and low pressure warning system are sent alarm signal simultaneously to fire alarm control unit under the fire working; Fire alarm control unit sends valve opening signal and opens the pump signal, and feedback signal is to fire protection control room, and the pressure switch feedback signal is to fire alarm control unit after pipeline pressure rises to operating pressure; And the acoustooptic alarm system outside the startup guard plot; When electrical resistivity survey examining system or low pressure warning system had only a system to send alarm signal to fire alarm control unit, only interlock started the warning alarm bell in the guard plot, and does not drive valve and open pump; The preact system that repeats signal doubly-linked lock to open and close adopts and repeats to open and close shower nozzle; Its control mode is with signal doubly-linked lock preact system; Just after electrical resistivity survey examining system perception fire scene temperature descends, can close pressure pump and Region control valve automatically, when resume combustion takes place, can open automatically once more.
In the said system, described water system comprises two water source tube, and two water source tube are respectively introduced the water source that one road independent, reliable and water quality satisfies the requirement of high-pressure fine water mist fire-extinguishing system water; Two water source tube are through directly inserting the water inlet regulating tank behind the accurate filter, by-pass flow voltage stabilizing pipeline picks out behind accurate filter.
In the said system, described water system also can comprise a water source tube and a special-purpose storage cistern, when having only one tunnel independence water source, special-purpose storage cistern need be set, and stores whole water consumptions of system in the fire life.Before water source tube gets into the water inlet regulating tank, moisturizing booster water pump (small pump) and auto-pneumatic cylinder are set, the parallelly connected setting with auto-pneumatic cylinder of small pump is absorbed water by special-purpose storage cistern, and moisturizing pressure is controlled between 0.2MPa (being confirmed by actual pipe resistance)～0.8MPa.On the small pump outlet pipe accurate filter is set.Behind accurate filter, pick out on the lifting pipe of by-pass flow voltage stabilizing pipeline by small pump.The moisturizing booster water pump when hydraulic pressure at said water source is lower than 0.2MPa, guarantees that moisturizing pressure is between 0.2MPa～0.8MPa.
Said water inlet regulating tank place also is provided with fluid level controller, realizes the adjusting of cistern water level through the control to water inlet control electrically operated valve or moisturizing force (forcing) pump.
The nozzle specially used material of said heavy pressure fine spray is an austenitic stainless steel 316, and the shower nozzle minimum operating pressure is 10MPa, fogdrop diameter DV0.9≤200 μ m; Said high pressure fine water fog spraying gun satisfies Q/TOIJ27-2009 " high pressure fire fighting fine water fog spraying gun " regulation.
Said pressurizing feedwater pump group realizes the manual control function of reaching automatically of pump group start and stop through the control signal that receives from Region control valve group or fire protection control room, and pressurizing feedwater pump switch board has the function of on-the-spot urgent start and stop pump group.
Said distributing pipe line forms the cyclic ligand water conduit tube in AT STATION, each guard plot range pipe all thus the cyclic ligand water conduit tube pick out.Said distributing pipe line adopts 1Cr18Ni9Ti stainless steel tube and pipe fitting, and pipeline connects the employing welding or high pressure cutting ferrule pipe fitting connects, and the operating pressure of pipeline, pipe fitting is 14MPa.
Said Region control valve group; Be arranged on the distributing pipe line of the outside, guard plot; With the corresponding one by one setting in protection zone, the major control parts comprise motor-driven valve, pressure switch, valve group control module, motor-driven valve emergency operation handle and control ball valve etc., can realize different automatic or manual opening ways according to set system type in the protection zone; And through pressure switch signal united opening pressurizing feedwater pump group, have emergency opening and maintenance, test function on the spot simultaneously.Distributing pipe line pressure is not less than 0.1MPa and is not higher than 1.0MPa before the non-fire working lower area control valve group.
Comprise the electrical resistivity survey examining system that is arranged in the zone of protection in the alarm unit; Said electrical resistivity survey examining system comprises detector such as cigarette sense, thalposis, flame and alarm signal circuit, relevant control module etc.; This system is according to one or more the detector in the different choice cigarette sense that place character is set, thalposis, the flame etc.; Said detector is evenly arranged on guard plot furred ceiling or the top board; In order to the fire situation in the timely induction zone of protection, and directly link to each other, the detector action signal is transferred to Region control valve group internal valve group control module with Region control valve group internal valve group control module; Be arranged at the audible-visual annunciator guard plot outside, spurt the warning alarm bell in indicator lamp and the guard plot in order to interlock control, withdraw with fire working information, shower nozzle duty and caution personnel in the demonstration guard plot.
In the heavy pressure fine spray preact system; In the distributing pipe line low pressure monitor and alarm system is set after the Region control valve group; Said low pressure monitor and alarm system is made up of air compressor, gas pipeline, air pressure attending device and low pressure pressure switch etc.; In order to system's tightness of distributing pipe line after the control valve group of monitored area and have the signal alarm function after fine mist spray head breaks, this system held normality air pressure is 0.07MPa.Wherein, Air compressor and air pressure attending device are arranged in the fire pump room; Distributing pipe line after gas pipeline connection air pressure attending device and the control valve group; Low air pressure switch is arranged on the gas pipeline near range pipe joint after air pressure attending device place and each guard plot and the Region control valve group, and low pressure pressure switch alarm signal is sent to fire protection control room or fire protection warning controller; After Region control valve group, check-valves is set on the said gas pipeline with the upper reaches of range pipe joint.
The beneficial effect of the utility model is, cancels the special-purpose voltage stabilizing water pump of conventional high-pressure fine water mist fire-extinguishing system, thereby the normality operating pressure of distributing pipe line is to normal pressure before the reduction zone valve group.Select the different application form of heavy pressure fine spray system to the characteristics of different zone of protections, and then systematicness a whole set of is proposed is applied to the high-pressure fine water mist fire-extinguishing system of rail traffic station and similar engineering.For important electrical equipment room, adopt signal doubly-linked lock preact system, effectively prevent mistake spray accident and reduction system recovery time; To the very strict zone of water stain requirement, adopt signal doubly-linked lock to repeat to open and close the preact system for electric substation etc., not only more effectively prevent the mistake spray, and can reduce water stain harm to greatest extent.
The utility model has reduced the normality operating pressure of the preceding distributing pipe line of zone valve group to normal pressure; And systematicness proposes a whole set of and is applied to the high-pressure fine water mist fire-extinguishing system in the rail traffic station, makes high-pressure fine water mist fire-extinguishing system better be adapted to the construction and the operation characteristic of Chinese rail traffic station.
Through the accompanying drawing and the specific embodiment the utility model is further specified below, but and do not mean that restriction the utility model protection domain.
Description of drawings
Fig. 1 is the systematic schematic diagram of the utility model.
Fig. 2 is the water system partial enlarged drawing when one road water source or water source pressure of supply water deficiency are arranged among Fig. 1.
Fig. 3 is the water system partial enlarged drawing when having two-way water source and water source pressure of supply water to satisfy among Fig. 1.
Fig. 4 is the local enlarged diagram of Region control valve group among Fig. 1.
Fig. 5 is the application implementation example that the utility model is applied to shield door place, the capable district of station rail.
Fig. 6 is that shower nozzle is installed enlarged drawing in the application implementation example shown in Figure 5.
Fig. 7 is the application implementation example that the utility model is applied to electrical equipment room, station.
Fig. 8 controls block diagram in the application implementation example shown in Figure 7.
Main Reference numeral:
1 water source tube, 152 motor-driven valves
101 moisturizing booster water pumps (abbreviating small pump as), 153 valve group control modules
102 secondary filters, 154 control ball valves
103 tapping pipes, 155 Pressure gauges
104 normally closed gate valve 156 motor-driven valve emergency operation handles
105 auto-pneumatic cylinders, 157 valve group water inlet pipes
2 by-pass flow voltage stabilizing pipelines, 158 valve group outlet pipes
3 water inlet regulating tanks, 16 heat detectors
4 often open a sluice gate valve 17 smoke detectors
5 check-valves, 18 audible-visual annunciators
6 pressurizing feedwater pump groups 19 are spurted indicator lamp
7 fluid level controllers, 20 warning alarm bells
8 water inlet control electrically operated valves, 21 control circuits
9 pressure pump switch boards, 22 fire alarm control units
10 distributing mains, 23 air compressor machine switch boards
11 range pipes, 24 air compressors (air compressor machine)
12 heavy pressure fine spray deluge systems, 25 air attending devices
13 heavy pressure fine spray automatic sprinklers, 26 low air pressure switch
(or repeating to open and close shower nozzle) 27 gas pipelines
14 high pressure fine water fog spraying guns, 28 fire protection control centers
15 Region control valve groups, 29 building furred ceilings
151 pressure switches, 30 screen doors (safety door).
The specific embodiment
As shown in Figure 1; The high-pressure fine water mist fire-extinguishing system of the utility model; Comprise water system, spurt system and control and three parts of warning system; Water system and the system of the spurting water circuit system for being connected with aqueduct, control and warning system are with signal line Circuits System that is connected and the air-channel system that is connected with gas pipeline.
Water system comprises into water regulating tank 3, pressurizing feedwater pump group 6, by-pass flow voltage stabilizing pipeline 2, distributing pipe line (comprising distributing main 10 and range pipe 11) and water source tube 1 etc.; Before water inlet regulating tank 3 is located at pressurizing feedwater pump group 6; Connect water source tube 1 and pressurizing feedwater pump group 6, supply the suction of pump group to use; Pressurizing feedwater pump group 6 is located at between the water regulating tank 3 and distributing main 10, is made up of the high-pressure plunger pump more than two, and high-pressure fine water mist fire-extinguishing system fire-fighting work pressure is provided; By-pass flow voltage stabilizing pipeline 2 directly connects water source tube 1 and distributing main 10, utilizes the water source feed pressure for high-pressure fine water mist fire-extinguishing system the pipeline pressure under the non-fire working to be provided; Distributing main 10, range pipe 11 are in order to connect water system and to spurt system, with transmission, delivery system operating pressure and flow.Distributing pipe line forms cyclic ligand water conduit tube 10, picks out range pipe 11 by the cyclic ligand water conduit tube.Distributing pipe line adopts 1Cr18Ni9Ti stainless steel tube and pipe fitting, and pipeline connects the employing welding or high pressure cutting ferrule pipe fitting connects, and the operating pressure of pipeline, pipe fitting is 14MPa.Water inlet regulating tank 3 places also are provided with fluid level controller 7, realize the adjusting of cistern water level through the control to water inlet control electrically operated valve 8 or small pump 101.On the by-pass flow voltage stabilizing pipeline 2 check-valves 5 is set, starts of the refluence of back water in order to prevent pressurizing feedwater pump group 6, and normally closed gate valve 104 is set before check-valves 5 to satisfy the maintenance requirement to water source tube 1 place.
The system of spurting comprises heavy pressure fine spray nozzle specially used (heavy pressure fine spray deluge system 12 and heavy pressure fine spray automatic sprinkler 13) and high pressure fine water fog spraying gun 14; Be arranged on the interior range pipe 11 of zone of protection; As the terminal of spurting of fire extinguishing system, in order to spurt the fine mist fire-fighting medium.The nozzle specially used material of heavy pressure fine spray is an austenitic stainless steel 316, and the shower nozzle minimum operating pressure is 10MPa, fogdrop diameter DV0.9≤200 μ m.High pressure fine water fog spraying gun satisfies Q/TOIJ27-2009 " high pressure fire fighting fine water fog spraying gun " regulation.
In the water system, comprise that 1, two water source tube 1 of two water source tube draws two-way water quality reaching standard water source respectively to the regulating tank 3 of intaking.Water system also can comprise a water source tube 1 and a special-purpose storage cistern.Under the fire-fighting operating mode, source water is promoted to distributing main 10 through pressurizing feedwater pump group 6, is distributed to each protection zone inner high voltage fine mist spray head 12,13 and high pressure fine water fog spraying gun 14 through range pipe 11 again, implements fire extinguishing; Under the non-fire-fighting operating mode, source water up to standard directly is distributed to distributing main 10 by by-pass flow voltage stabilizing pipeline 2 in the water source tube 1 before water inlet regulating tank 3, ensures the water that is full of certain pressure in the distributing main 10.Be provided with on the by-pass flow voltage stabilizing pipeline 2 and often open a sluice gate valve 4 and check-valves 5, guarantee the current one-way flow.Equal setting area control valve group 15 when range pipe 11 gets into each guard plot is to guarantee under non-fire working, not having water to get in the Region control valve group 15 back range pipes 11; And the water that under fire working, satisfies the fire-fighting pressure requirement can in time get in the range pipe 11 after the Region control valve group 15.In the water inlet regulating tank 3 fluid level controller 7 is set; It is realized the open and close controlling of water inlet control electrically operated valve 8 or the start and stop control of small pump 101 through corresponding control module in the pressure pump switch board 9, thereby guarantees that liquid level remains in the control range in the water inlet regulating tank 3.
Control and warning system are divided into control module and alarm unit, and control module comprises the moisturizing control at water inlet regulating tank place in the water system, the start and stop control and the Region control valve group open and close controlling of pressurizing feedwater pump group; Alarm unit comprises the electrical resistivity survey examining system and the warning alarm bell that are arranged in the zone of protection, is arranged at the audible-visual annunciator outside the guard plot and spurts indicator lamp, and/or the interior low pressure monitor and alarm system of distributing pipe line after the Region control valve group.Region control valve group is arranged on the distributing pipe line of the outside, guard plot; With the corresponding one by one setting in protection zone; The major control parts comprise motor-driven valve 152, pressure switch 151, valve group control module 153, motor-driven valve emergency operation handle 156 and control ball valve 154; Have the automatic or manual opening ways, and, have emergency opening, maintenance and test function on the spot simultaneously through pressure switch signal united opening pressurizing feedwater pump group; Distributing pipe line pressure is not less than 0.1MPa and is not higher than 1.0MPa before the nominal situation lower area control valve group.
The low pressure monitor and alarm system is made up of air compressor 24, gas pipeline 27, air attending device 25 and low pressure (pressure) switch 26 etc., and said system held normality air pressure is 0.07MPa; Said low pressure pressure switch 26 is arranged on the gas pipeline 27 near air attending device 25 places and each guard plot and range pipe 11 joints, and low pressure pressure switch alarm signal is sent to fire protection control center 28 or each guard plot Region control valve group 15 internal valve group control module 153; On the said gas pipeline after each guard plot Region control valve group the upper reaches of range pipe joint check-valves 5 is set.
In the air-channel system; The compressed air of air compressor 24 certain pressure that produces gets into gas pipeline 27 through air attending device 25 backs; Be delivered to by gas pipeline 27 in the Region control valve group 15 back range pipes 11 of heavy pressure fine spray preact system; In order to monitored area control valve group 15 back water distribution systems and spurt the tightness of system, and can be under the fire-fighting operating mode heavy pressure fine spray automatic sprinkler or repeat to open and close shower nozzle 13 back of breaking and in time report to the police.On the upper reaches gas pipeline 27 of gas pipeline 27 and range pipe 11 connections, establish check-valves 5 to prevent that water gets into gas pipeline 27 under the fire-fighting operating mode.Low air pressure switch 26 is set in the air attending device; In order to the system pressure in the monitoring air-channel system; 24 start and stop of control air compressor, thus the air-channel system internal gas pressure kept within the specific limits, and when pressure is lower than limit value, in time report to the police to fire alarm control unit 22.
In control and the warning system, the electrical resistivity survey examining system comprises sense cigarette and heat detector, and detector is evenly arranged on guard plot furred ceiling or the top board.Heat detector 16 in each zone of protection or smoke detector 17 are as alarm terminal; All be connected to Region control valve group 15 internal valve group control modules 153; Be connected to fire alarm control unit 22 by valve group control module 153; Motor-driven valve 152 and pressure switch 151 all are connected with fire alarm control unit 22 through valve group control module 153 in the Region control valve group 15 simultaneously, realize the automatic unlatching of motor-driven valve 152 and the signal feedback of pressure switch 151.Motor-driven valve emergency operation handle 156 has the function of on-the-spot emergency opening motor-driven valve 152 in the valve group simultaneously.Low air pressure switch 26 sends alarm signal to fire alarm control unit 22 as another road alarm terminal through valve group control module 153 in the air-channel system when adopting heavy pressure fine spray preact system or repeating to open and close the preact system.When only being that heat detector 16 or smoke detector 17 sends alarm signal to fire alarm control units 22 through Region control module 153 in the zone of protection; When perhaps only being low air pressure switch 26 transmission alarm signal to fire alarm control units 22, only start the warning alarm bell 20 in the corresponding zone of protection; After and if only if heat detector 16 or smoke detector 17 send alarm signal simultaneously with low air pressure switch 26 in this zone of protection; Fire alarm control unit 22 is opened audible-visual annunciator 18 outside Region control valve group 15 interior motor-driven valves 152 and the guard plot; And then start pressurizing feedwater pump group 6 automatically, close air compressor 24 and carry out other relevant fire-fighting link operation.Promptly open after pressurizing feedwater pump group 6 starts and spurt indicator lamp 19.Open the pump button in the high pressure fine water fog spraying gun 14 and can directly start pressurizing feedwater pump group 6 through fire alarm control unit 22, and after opening pump signal lamp in feedback signal to the high pressure fine water fog spraying gun 14.Fire alarm control unit 22 directly links to each other with air compressor machine switch board 23 and pressure pump switch board 9, interlock control.Fire alarm control unit 22 directly links to each other with fire protection control center 28 simultaneously, and fire protection control center 28 is connected control with pressure pump switch board 9 direct rigid lines.
In embodiment illustrated in fig. 2; When source water forces down in 0.2MPa (calculating definite by the pipe resistance) or has only one tunnel reliable water source; Before water source tube 1 gets into water inlet regulating tank 3, moisturizing booster water pump (small pump) 101 and auto-pneumatic cylinder 105 are set; The parallelly connected setting with auto-pneumatic cylinder of small pump is absorbed water by special-purpose storage cistern, and moisturizing pressure is controlled between 0.2MPa～0.8MPa.Further control moisturizing source quality of accurate filter 102 is set on small pump 101 outlet pipes.By-pass flow voltage stabilizing pipeline 2 is by behind accurate filter 102, picking out on the lifting pipe of small pump 101.Normally closed gate valve 104 all is set on small pump outlet pipe and tapping pipe 103, uses so that accurate filter 102 and water inlet are controlled when electrically operated valve 8 overhauls.
In the embodiment shown in fig. 3, when the reliable water source of two-way and water source hydraulic pressure were higher than 0.2MPa (calculated confirm by the pipe resistance), water source tube 1 directly inserted the regulating tank 3 of intaking through accurate filter 102 backs, and by-pass flow voltage stabilizing pipeline 2 picks out behind accurate filter 102.
In Fig. 4; Local drawing for Region control valve group 15; Set gradually motor-driven valve 152 and pressure switch 151 among the figure on the valve group water inlet pipe 157; Control ball valve 154 is set for valve group water inlet pipe 157 origin or beginnings and valve group outlet pipe 158 ends so that motor-driven valve emergency operation handle 156 is set up in the whole maintenance of valve group on the motor-driven valve 152, and front and back all are provided with Pressure gauge 155.Motor-driven valve 152 and pressure switch 151 all link through circuit and valve group control module 153, and valve group control module 153 has the function of on-the-spot emergency opening motor-driven valve 152 simultaneously.Valve group control module 153 links to each other with fire alarm control unit 22 through circuit.
In the embodiment shown in fig. 5; Pressurizing feedwater pump group 6 is arranged in the special-purpose fire pump room in station; Draw two-way heavy pressure fine spray distributing main 10 by pressurizing feedwater pump group 6; Form the ring-type water supply network AT STATION, pick out many range pipes 11 in the appropriate position, be connected to special-purpose spray gun 14 of heavy pressure fine spray and Region control valve group 15 through range pipe 11 by cyclic ligand water conduit tube 10.Region control valve group outlet pipe 158 is the dendritic thin water smoke deluge system 12 of screen door place special high-pressure that is distributed to, and both sides, station shield door is respectively established one, totally two.Thin water smoke deluge system 12 spacings of special high-pressure are definite through calculating, and are controlled to be 1000mm in the present embodiment.The spacing that is provided with of special high-pressure fine water fog spraying gun 14 also need be definite through calculating, and controls by being not less than 50m in the present embodiment.
Fig. 6 be embodiment illustrated in fig. 5 in the concrete installation drawing of special-purpose heavy pressure fine spray deluge system 12, shower nozzle 12 is installed on the side of screen door 30 near the capable district of rail, is linked to each other with Region control valve group outlet pipe 158 by range pipe 11.Apart from tread air channel lower surface 600mm, horizontal direction is apart from shield door framed wall 200mm in vertical direction in the shower nozzle installation site in the present embodiment.
Shown in Figure 7 is the application example of station equipment district heavy pressure fine spray preact system; Heavy pressure fine spray system pressurizing feedwater pump group 6 and air compressor machine 24 all are arranged in the special-purpose fire pump room in station; The thin water smoke automatic sprinkler 13 of special high-pressure is set in each important electrical equipment room as required, quantity and concrete pitch arrangement is set calculates definite according to standard.The winding of pressurizing feedwater pump goes out two distributing mains 10 and forms the ring-type water supply network in the scope AT STATION; Corresponding to each zone of protection; Draw the Region control valve group 15 that range pipe 11 is connected to each guard plot by distributing main 10, the water outlet of control valve group is distributed to each shower nozzle 13 through range pipe 11 again.High pressure fine water fog spraying gun 14 is set outside the guard plot, and be provided with position and the quantity of spray gun 14 satisfy the effective water supply that has a spray gun 14 in each guard plot at least and can cover any position in this guard plot.The compressed air that air compressor machine 24 is produced is range pipe 11 places after a gas pipeline 27 is delivered to each guard plot inner region control valve group 15.
Fig. 8 is the control block diagram of heavy pressure fine spray preact system; Adopt signal doubly-linked lock preact system; When detector alarm in the zone of protection or the warning of air-channel system low air pressure switch, be regarded as one-level and report to the police, only send alarm signal and start warning alarm bell in the guard plot; And if only if guard plot detector and low air pressure switch is regarded as secondary and reports to the police when reporting to the police simultaneously, open Region control valve group this moment automatically, and opens the outside, guard plot audible-visual annunciator, and linkage is closed equipment such as fire resisting damper, air-conditioning.Behind the Region control opening of valves, valve group internal pressure switch gearing force (forcing) pump group starts, and implements sprinkling fire, starts the outside, guard plot simultaneously and spurts indicator lamp, shows that shower nozzle spurts operating mode in the guard plot.When manual work is at first found the condition of a fire, can realize the one-level warning through pressing manual pull station; Also direct emergency start Region control valve group in case of necessity realizes that the urgent of force (forcing) pump group open automatically.In addition, native system can also directly be realized the remote activation of Region control valve group and pressurizing feedwater pump group at fire protection control center, directly realizes the emergency start of pressurizing feedwater pump group at fire pump room.
In the utility model; The concrete form that spurts system is difference according to the difference of protection zone type and to some extent; Control corresponding and warning system also will change thereupon with it; When system plays protection during compartmentation or that the fire spread property of position is set is strong and, for example be arranged on shield door place, the capable district of rail and adopt open system when less demanding for water stain; When system is arranged at important electrical equipment room and preventing from mistake in jetting had relatively high expectations, as adopt signal doubly-linked lock preact system when being arranged on communication, signalling arrangement machine room; When being arranged on electric substation etc., system can adopt signal doubly-linked lock to repeat to open and close the preact system to the very strict ground of water stain requirement.
The heavy pressure fine spray open system adopts deluge system; Pass through wet type, dry type elder generation's conduit or electrical resistivity survey examining system under the fire working and realize the automatic unlatching of Region control valve; Have fire protection control room remote opening and on-site manual opening device simultaneously, and when driving valve, start the pressurization main pump; Signal doubly-linked lock preact system adopts automatic sprinkler; Interior electrical resistivity survey examining system of zone of protection and low pressure warning system are sent signal simultaneously to fire alarm control unit under the fire working; Fire alarm control unit sends valve opening signal and opens the pump signal, and feedback signal is to fire protection control room, and the pressure switch feedback signal is to fire alarm control unit after pipeline pressure rises to operating pressure; And the acoustooptic alarm system outside the startup guard plot; When electrical resistivity survey examining system or low pressure warning system had only a system to send alarm signal to fire alarm control unit, only interlock started the warning alarm bell in the guard plot, and does not drive valve and open pump; The preact system that repeats signal doubly-linked lock to open and close adopts and repeats to open and close its control mode of shower nozzle with signal doubly-linked lock preact system; Just after electrical resistivity survey examining system perception fire scene temperature descends, can close pressure pump and Region control valve automatically, when resume combustion takes place, can open automatically once more.
The utility model is through being provided with the setting that by-pass flow voltage stabilizing pipeline substitutes stabilized pressure pump; And can be according to the characteristics and the different application form of type selecting heavy pressure fine spray system of different zone of protections, and then systematicness proposes a whole set of and is applied to the high-pressure fine water mist fire-extinguishing system of rail traffic station and similar engineering.
Claims (10)
1. the high-pressure fine water mist fire-extinguishing system of a normal pressure voltage stabilizing comprises water system, spurts system and control and warning system, it is characterized in that:
Said water system comprises into water regulating tank, pressurizing feedwater pump group, by-pass flow voltage stabilizing pipeline, distributing pipe line and water source tube, before said water inlet regulating tank is located at pressurizing feedwater pump group, connects water source tube and pressurizing feedwater pump group; The pressurizing feedwater pump is mounted on between the water regulating tank and distributing pipe line, is made up of the high-pressure plunger pump more than two; By-pass flow voltage stabilizing pipeline directly connects water source tube and distributing pipe line; Distributing pipe line is in order to connect water system and to spurt system, with transmission, delivery system operating pressure and flow;
The said system of spurting comprises the nozzle specially used and high pressure fine water fog spraying gun of heavy pressure fine spray, is arranged on the interior range pipe of zone of protection, as the terminal of spurting of fire extinguishing system, in order to spurt the fine mist fire-fighting medium;
Said control and warning system are divided into control module and alarm unit, and said control module comprises the moisturizing control at water inlet regulating tank place in the water system, the start and stop control and the Region control valve group open and close controlling of pressurizing feedwater pump group; Said alarm unit comprise the electrical resistivity survey examining system and the warning alarm bell that are arranged in the zone of protection, be arranged at the audible-visual annunciator outside the guard plot and spurt indicator lamp and/or Region control valve group after the interior low pressure monitor and alarm system of distributing pipe line.
2. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1 is characterized in that: described high-pressure fine water mist fire-extinguishing system is an open system; The system of spurting in the said heavy pressure fine spray open system adopts deluge system, and alarm unit comprises electrical resistivity survey examining system and/or the first conduit system that is arranged in the zone of protection in control and the warning system.
3. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1 is characterized in that: described high-pressure fine water mist fire-extinguishing system is signal doubly-linked lock preact system; The system of spurting adopts automatic sprinkler or repeats to open and close shower nozzle in the said heavy pressure fine spray signal doubly-linked lock preact system, in control and the warning system alarm unit comprise electrical resistivity survey examining system and warning alarm bell in the zone of protection, be arranged at the audible-visual annunciator outside the guard plot and spurt indicator lamp and Region control valve group after the interior low pressure monitor and alarm system of distributing pipe line.
4. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 3; It is characterized in that: said low pressure monitor and alarm system comprises air compressor, gas pipeline, air pressure attending device and low pressure pressure switch, and said system held air pressure is 0.07MPa; Said low pressure pressure switch is arranged on the gas pipeline near range pipe joint after air pressure attending device place and each guard plot and the Region control valve group, and low pressure pressure switch alarm signal is sent to fire protection control room and fire alarm control unit; On the said gas pipeline after Region control valve group the upper reaches of range pipe joint check-valves is set.
5. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1; It is characterized in that: described water system comprises two water source tube; Two water source tube are through directly inserting the water inlet regulating tank behind the accurate filter, by-pass flow voltage stabilizing pipeline picks out behind accurate filter.
6. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1; It is characterized in that: described water system comprises a water source tube and a special-purpose storage cistern; Before water source tube gets into the water inlet regulating tank, moisturizing booster water pump and auto-pneumatic cylinder are set; The parallelly connected setting with auto-pneumatic cylinder of moisturizing booster water pump is provided with accurate filter on the moisturizing booster water pump outlet pipe, behind accurate filter, picks out on the lifting pipe of by-pass flow voltage stabilizing pipeline by the moisturizing booster water pump.
7. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 6 is characterized in that: the moisturizing pressure of said moisturizing booster water pump is controlled at below the 0.8MPa but is not less than pipe-line system resistance demand.
8. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1 is characterized in that: said distributing pipe line forms the cyclic ligand water conduit tube, picks out range pipe by the cyclic ligand water conduit tube.
9. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1; It is characterized in that: described Region control valve group; Be arranged on the distributing pipe line of the outside, guard plot; With the corresponding one by one setting in protection zone, the major control parts comprise motor-driven valve, pressure switch, valve group control module, motor-driven valve emergency operation handle and control ball valve, have the automatic or manual opening ways; And, carry out emergency opening, maintenance and the test of valve group on the spot through pressure switch signal united opening pressurizing feedwater pump group; Distributing pipe line pressure is not less than 0.1MPa and is not higher than 1.0MPa before the nominal situation lower area control valve group.
10. the high-pressure fine water mist fire-extinguishing system of normal pressure voltage stabilizing according to claim 1; It is characterized in that: said electrical resistivity survey examining system comprises one or more the detector in cigarette sense, thalposis, the flame; Said detector is evenly arranged on guard plot furred ceiling or the top board, and directly links to each other with Region control valve group internal valve group control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120233188U CN202136713U (en) | 2011-07-01 | 2011-07-01 | Normal, stable and high pressure water mist fire extinguishing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120233188U CN202136713U (en) | 2011-07-01 | 2011-07-01 | Normal, stable and high pressure water mist fire extinguishing system |
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| CN202136713U true CN202136713U (en) | 2012-02-08 |
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| CN201120233188U Expired - Lifetime CN202136713U (en) | 2011-07-01 | 2011-07-01 | Normal, stable and high pressure water mist fire extinguishing system |
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| CN (1) | CN202136713U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103055460A (en) * | 2012-12-24 | 2013-04-24 | 广州市设计院 | High pressure water mist fire extinguishing system used for open-type indoor historical relic historical site |
| CN103212179A (en) * | 2013-04-18 | 2013-07-24 | 成军 | Construction method of pumping set type high-pressure water mist fire extinguishing system |
| CN103638626A (en) * | 2013-12-24 | 2014-03-19 | 河南海力特机电制造有限公司 | High-pressure fine water mist coaxial type partitioning control valve box |
| CN104548422A (en) * | 2014-11-24 | 2015-04-29 | 深圳市华宝电子科技有限公司 | Method and device for controlling vehicle to automatically extinguish fire |
| CN106943699A (en) * | 2017-04-07 | 2017-07-14 | 天津神封科技发展有限公司 | High-pressure aerial fog linkage automatic fire extinguishing system |
| CN110404223A (en) * | 2019-08-30 | 2019-11-05 | 河南海力特装备工程有限公司 | The partitioning control valve of high-pressure water mist case of tape test function |
| CN113181588A (en) * | 2021-05-28 | 2021-07-30 | 上海凯泉泵业（集团）有限公司 | Integrated water supply unit for fire control that possesses thing networking function |
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| EP4079378A1 (en) * | 2021-04-22 | 2022-10-26 | Italoiberica Engineering Group Sl | Firefighting water system for closed structures having a lengthy extension, in particular road tunnels |
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- 2011-07-01 CN CN201120233188U patent/CN202136713U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103055460A (en) * | 2012-12-24 | 2013-04-24 | 广州市设计院 | High pressure water mist fire extinguishing system used for open-type indoor historical relic historical site |
| CN103055460B (en) * | 2012-12-24 | 2016-03-23 | 广州市设计院 | For the high-pressure fine water mist fire-extinguishing system of the indoor cultural sight of open type |
| CN103212179A (en) * | 2013-04-18 | 2013-07-24 | 成军 | Construction method of pumping set type high-pressure water mist fire extinguishing system |
| CN103638626A (en) * | 2013-12-24 | 2014-03-19 | 河南海力特机电制造有限公司 | High-pressure fine water mist coaxial type partitioning control valve box |
| CN104548422A (en) * | 2014-11-24 | 2015-04-29 | 深圳市华宝电子科技有限公司 | Method and device for controlling vehicle to automatically extinguish fire |
| CN106943699A (en) * | 2017-04-07 | 2017-07-14 | 天津神封科技发展有限公司 | High-pressure aerial fog linkage automatic fire extinguishing system |
| CN110404223A (en) * | 2019-08-30 | 2019-11-05 | 河南海力特装备工程有限公司 | The partitioning control valve of high-pressure water mist case of tape test function |
| EP4079378A1 (en) * | 2021-04-22 | 2022-10-26 | Italoiberica Engineering Group Sl | Firefighting water system for closed structures having a lengthy extension, in particular road tunnels |
| CN113181588A (en) * | 2021-05-28 | 2021-07-30 | 上海凯泉泵业（集团）有限公司 | Integrated water supply unit for fire control that possesses thing networking function |
| CN114452581A (en) * | 2022-02-22 | 2022-05-10 | 应急管理部天津消防研究所 | Fault diagnosis device and method for compressed air foam fire extinguishing system of extra-high voltage converter station |
| CN114452581B (en) * | 2022-02-22 | 2023-02-28 | 应急管理部天津消防研究所 | Fault diagnosis device and method for compressed air foam fire extinguishing system of extra-high voltage converter station |
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Address after: 100037 Beijing, Fuchengmen, North Street, No. 5, No. Patentee after: BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP CO., LIMITED Address before: 100037 Beijing, Fuchengmen, North Street, No. 5, No. Patentee before: Beijing Urban Establishing Design & Research Institute Co., Ltd. |
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