CN216703233U - Compressed air foam fire extinguishing system - Google Patents
Compressed air foam fire extinguishing system Download PDFInfo
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- CN216703233U CN216703233U CN202123251054.XU CN202123251054U CN216703233U CN 216703233 U CN216703233 U CN 216703233U CN 202123251054 U CN202123251054 U CN 202123251054U CN 216703233 U CN216703233 U CN 216703233U
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Abstract
The utility model provides a compressed air foam fire extinguishing system, which is characterized in that a compressed air pipeline is connected to a mixed pipeline of fire-fighting water and foam liquid, so that a fire extinguishing agent forms stable gas-liquid two-phase flow, and meanwhile, the fire extinguishing agent is pushed to a pipe network by positive pressure by taking compressed air as power, so that the pressure fluctuation of the system caused by the fact that a nozzle on the side of the pipe network forms vacuum negative pressure by utilizing a Venturi effect is avoided; and the air storage tank is arranged in the compressed air output path, so that the stability of the supply pressure and flow of the compressed air is ensured, the first pressure stabilizing tank or the pressure maintaining and relieving valve is arranged in the foam liquid output path, so that the stability of the supply pressure and flow of the foam liquid is ensured, and the pressure stabilizing pump and the second pressure stabilizing tank are arranged in the fire water output path, so that the stability of the supply pressure and flow of the fire water is ensured. The utility model has the advantages of automatic mixing to form gas-liquid two-phase flow fire extinguishing agent, compact structure, stable pressure and flow, and suitability for multi-area and multi-type fire extinguishing management and control occasions.
Description
Technical Field
The utility model belongs to the field of fire fighting, and particularly relates to a compressed air foam fire extinguishing system.
Background
At present, common fire extinguishing facilities are fire hydrants, when taking place the conflagration, put through the water supply and then high-pressure injection position on fire with the fire hose, and this kind of mode that uses the pure water as fire extinguishing medium can only be put out a fire through water vaporization lowering temperature, and when fluid, the combustible matter of low ignition point, this kind of mode of putting out a fire then has the inefficiency of putting out a fire, the big problem of operation control degree of difficulty.
Generally, people can set different fire extinguishing modes according to the types of possible fires in different occasions, including foam fire extinguishing, dry powder fire extinguishing and the like; however, most fire extinguishing devices with the specific functions adopt a bottle and tank miniaturization design, can only be applied to small local fires, and have the problems of narrow application range and large operation and use limitations in large-area places on fire such as buildings, plants, tunnels and the like; although some large-scale foam fire extinguishing systems solve the problems to a certain extent at present, the system has large control pressure change, large mixing proportion error of fire fighting water and foam, and particularly the balance point of the fire fighting water and the foam is easy to drift, so that the spraying of the foam fire extinguishing system is interrupted, the fire can not be effectively extinguished, and the fire rescue is delayed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a compressed air foam fire extinguishing system which has the function of automatically mixing to form a gas-liquid two-phase flow fire extinguishing agent, has a compact structure and stable pressure and flow, and is suitable for multi-area and multi-type fire extinguishing management and control occasions.
In order to solve the technical problem, the utility model provides a compressed air foam fire extinguishing system which comprises a foam concentrate storage tank, a foam concentrate conveying main pipe, a fire fighting water source, a fire fighting water conveying main pipe, an air compressor, a compressed air conveying main pipe, a mixed liquid conveying main pipe, at least one foam spray control valve group box and at least one fire extinguishing device, wherein the foam spray control valve group box comprises a rain valve, a proportional mixer, a fire fighting water inlet pipe, a foam concentrate inlet pipe, a compressed air inlet pipe and a mixed liquid outlet pipe;
the foam liquid storage tank is connected with the foam liquid input end of the foam liquid conveying main pipe through a foam liquid pump, the foam liquid input end of the foam liquid conveying main pipe is connected with a first pressure stabilizing tank or a pressure maintaining relief valve, and the first pressure stabilizing tank or the pressure maintaining relief valve is positioned on the output side of the foam liquid pump; a foam liquid inlet pipe of each foam spray control valve group box is respectively connected with a foam liquid output end of the foam liquid conveying main pipe; the foam liquid inlet pipe is connected with a foam liquid input end of the proportioning mixer, and a foam liquid ball valve, a first filter, a first electromagnetic valve, a balance valve and a first check valve are arranged on the foam liquid inlet pipe;
the fire-fighting water source is connected with a fire-fighting water input end of the fire-fighting water conveying main pipe through a fire-fighting water pump, the fire-fighting water pump is connected with a pressure stabilizing assembly in parallel, and the pressure stabilizing assembly comprises a pressure stabilizing pump and a second pressure stabilizing tank which are connected in sequence; the fire water inlet pipe of each foam spray control valve group box is respectively connected with the fire water output end of the fire water conveying main pipe; the fire-fighting water inlet pipe is connected with a fire-fighting water input end of the proportional mixer through the deluge valve, and a water supply side signal butterfly valve is arranged on the fire-fighting water inlet pipe;
the air compressor is connected with a compressed air input end of the compressed air delivery main pipe, an air storage tank is arranged between the air compressor and the compressed air input end of the compressed air delivery main pipe, and a compressed air inlet pipe of each foam spray control valve group box is respectively connected with a compressed air output end of the compressed air delivery main pipe; the compressed air inlet pipe is connected with a compressed air input end of the proportional mixer or a mixed liquid output end of the proportional mixer, and a compressed air ball valve, a second electromagnetic valve and a second check valve are arranged on the compressed air inlet pipe;
the mixed liquid outlet pipe of each foam spray control valve group box is respectively connected with the mixed liquid input end of the mixed liquid conveying main pipe, the mixed liquid outlet pipe is connected with the mixed liquid output end of the proportional mixer, and a system side signal butterfly valve is arranged on the mixed liquid outlet pipe;
each fire extinguishing device is respectively connected with the mixed liquid output end of the mixed liquid conveying main pipe, and each fire extinguishing device respectively corresponds to one protection area and is connected with at least one spray head.
As a preferable scheme of the utility model, the deluge valve is provided with a water inlet chamber positioned at the lower part, a water outlet chamber positioned at the upper part and a pressure chamber positioned at the side part, the water inlet chamber is connected with the fire water inlet pipe, and the water outlet chamber is connected with the fire water input end of the proportioner; the fire-fighting water inlet pipe is characterized in that a first water outlet pipe is connected to the outside of the fire-fighting water inlet pipe, a second filter, a fire-fighting water pressure gauge and a third check valve are arranged on the first water outlet pipe, the tail end of the first water outlet pipe is connected with a pressure chamber, and the pressure chamber is connected with a deluge valve opening electromagnetic valve and a deluge valve manual opening ball valve which are connected in parallel.
As a preferable scheme of the present invention, a second water outlet pipe is connected to the outside of the water outlet cavity, a first water outlet ball valve is arranged on the second water outlet pipe, the foam spray control valve set box further includes a water inlet pipe of a hydraulic alarm bell, a hydraulic alarm bell and a water outlet pipe, the water inlet end of the water inlet pipe of the hydraulic alarm bell is connected to the second water outlet pipe, a third filter, a pressure switch and a water inlet ball valve of the hydraulic alarm bell are arranged on the water inlet pipe of the hydraulic alarm bell, the water outlet end of the water inlet pipe of the hydraulic alarm bell is connected to the fire water input end of the hydraulic alarm bell, and the fire water output end of the hydraulic alarm bell is connected to the water outlet pipe.
As a preferable scheme of the present invention, a third water outlet pipe is connected to the outside of the water inlet cavity, a second water outlet ball valve is arranged on the third water outlet pipe, and the third water outlet pipe is connected to the water inlet end of the water inlet pipe of the hydraulic alarm bell.
As a preferable aspect of the present invention, a mixing liquid outlet pipe between the system side signal butterfly valve and the proportional mixer is connected to a mixing tube, the mixing tube is provided with a mixing tube pressure gauge and a mixing tube ball valve, and a terminal of the mixing tube is connected to the drain pipe.
As a preferable scheme of the utility model, the compressed air foam fire extinguishing system further comprises a fire extinguishing controller, and the fire extinguishing controller is in communication connection with the foam liquid pump, the fire pump, the air compressor, the pressure stabilizing pump, the water supply side signal butterfly valve, the system side signal butterfly valve, the first electromagnetic valve, the second electromagnetic valve and the deluge valve opening electromagnetic valve through signal cables or wireless transmission modules respectively.
As a preferable scheme of the utility model, the foam liquid pump is connected with a spare foam liquid pump in parallel, and the fire extinguishing controller is respectively in communication connection with the spare foam liquid pump through a signal cable or a wireless transmission module.
As the preferable scheme of the utility model, the fire-fighting water pump is connected with a standby fire-fighting water pump in parallel, and the fire-fighting controller is respectively in communication connection with the standby fire-fighting water pump through a signal cable or a wireless transmission module.
Compared with the prior art, the compressed air foam fire extinguishing system has the following beneficial effects:
according to the utility model, the compressed air pipeline is connected to the mixing pipeline of fire-fighting water and foam liquid, so that the fire extinguishing agent forms stable gas-liquid two-phase flow, and meanwhile, the compressed air is used as power to push the fire extinguishing agent to be conveyed to the pipe network in a positive pressure manner, so that the pressure fluctuation of the system, especially the adverse effect on gas-liquid mixing, caused by the fact that a nozzle at the side of the pipe network forms vacuum negative pressure by utilizing the Venturi effect is avoided; and, set up the gas holder in the compressed air delivery path, can guarantee supply pressure and flow stability of compressed air, set up the first surge tank or hold the pressure relief valve in the foam concentrate delivery path, can guarantee supply pressure and flow stability of foam concentrate, set up the surge pump and second surge tank in the fire water delivery path, can guarantee supply pressure and flow stability of fire water. Therefore, the compressed air foam fire extinguishing system has the functions of automatically mixing to form the gas-liquid two-phase flow fire extinguishing agent, has a compact structure and stable pressure and flow, and is suitable for multi-area and multi-type fire extinguishing management and control occasions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of a compressed air foam fire suppression system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a compressed air foam fire suppression system according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of a foam spray control valve assembly box.
The labels in the figure are:
a foam liquid storage tank 1; a foam concentrate delivery main pipe 2; a fire water source 3; a fire water delivery main 4; an air compressor 5; a compressed air delivery manifold 6; a mixed liquid conveying main pipe 7; a foam spray control valve group box 8; a fire extinguishing device 9; a deluge valve 10; a proportional mixer 11; a fire water inlet pipe 12; a foam liquid inlet pipe 13; a compressed air inlet pipe 14; a mixed liquid outlet pipe 15; a foam liquid pump 16; the first surge tank 17 a; a pressure-sustaining relief valve 17 b; a foam concentrate ball valve 18; a first filter 19; a first solenoid valve 20; a balance valve 21; a first check valve 22; a fire pump 23; a pressure maintaining pump 24; a second surge tank 25; a water supply side signal butterfly valve 26; an air tank 27; a compressed air ball valve 28; a second electromagnetic valve 29; a second check valve 30; a system-side signal butterfly valve 31; a first water outlet pipe 32; a second filter 33; a fire water pressure gauge 34; a third check valve 35; the deluge valve opens the solenoid valve 36; the deluge valve manually opens the ball valve 37; a second outlet pipe 38; a first water outlet ball valve 39; a water inlet pipe 40 of the hydraulic alarm bell; a water-powered alarm bell 41; a drain pipe 42; a third filter 43; a pressure switch 44; a water inlet ball valve 45 of the hydraulic alarm bell; third outlet pipe 46; a second outlet ball valve 47; a test tube 48 is adjusted; a commissioning tube pressure gauge 49; a test tube adjusting ball valve 50; a spare foam liquid pump 51; a standby fire pump 52.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, a preferred embodiment of the present invention, a compressed air foam fire suppression system, comprises a foam concentrate storage tank 1, a foam concentrate delivery manifold 2, a fire water source 3, a fire water delivery manifold 4, an air compressor 5, a compressed air delivery manifold 6, a mixed liquor delivery manifold 7, at least one foam spray control valve stack 8, and at least one fire suppression device 9, the foam spray control valve stack 8 comprising a deluge valve 10, a proportioner 11, a fire water inlet pipe 12, a foam inlet pipe 13, a compressed air inlet pipe 14, and a mixed liquor outlet pipe 15.
The foam liquid storage tank 1 is connected with a foam liquid input end of the foam liquid conveying main pipe 2 through a foam liquid pump 16, the foam liquid input end of the foam liquid conveying main pipe 2 is connected with a first pressure stabilizing tank 17a (see fig. 1) or a pressure maintaining and relieving valve 17b (see fig. 2), and the first pressure stabilizing tank 17a or the pressure maintaining and relieving valve 17b is positioned on the output side of the foam liquid pump 16; a foam liquid inlet pipe 13 of each foam spray control valve group box 8 is respectively connected with a foam liquid output end of the foam liquid conveying main pipe 2; when the foam liquid pump 16 is started, pumping foam liquid from the foam liquid storage tank 1 and conveying the foam liquid to the foam spray control valve group box 8; on the other hand, the first pressure-stabilizing tank 17a or the pressure-maintaining relief valve 17b is provided in the foam concentrate discharge path, and the stability of the supply pressure and flow rate of the foam concentrate can be ensured. The foam concentrate inlet pipe 13 is connected with the foam concentrate input end of the proportioning mixer 11, and a foam concentrate ball valve 18, a first filter 19, a first electromagnetic valve 20, a balance valve 21 and a first check valve 22 are arranged on the foam concentrate inlet pipe 13; wherein, the foam liquid ball valve 18 is in a normally open state and is used for manually disconnecting the pipeline during pipeline maintenance; the first filter 19 is preferably a Y-filter for filtering larger particles in the foam concentrate to prevent downstream system clogging and failure; the first electromagnetic valve 20 is in a closed state when the system is in a standby state and in an open state when the system is in a working state, is preferably a manual-automatic integrated valve, can be opened manually when no power is available, and is used for manually or electrically controlling the foam liquid inlet pipe 13 to be switched on and off; the balance valve 21 is used for balancing foam liquid pressure and fire water pressure, so that the foam liquid pressure and fire water pressure difference entering the proportioner 11 are kept basically constant, and the foam mixing ratio of the foam proportioner is more stable; the first check valve 22 serves to prevent the foam concentrate in the foam concentrate inlet pipe 13 from flowing backward.
The fire-fighting water source 3 is connected with the fire-fighting water input end of the fire-fighting water delivery main pipe 4 through a fire-fighting water pump 23, the fire-fighting water pump 23 is connected with a pressure stabilizing assembly in parallel, and the pressure stabilizing assembly comprises a pressure stabilizing pump 24 and a second pressure stabilizing tank 25 which are connected in sequence; the fire water inlet pipe 12 of each foam spray control valve group box 8 is respectively connected with the fire water output end of the fire water delivery main pipe 4; when the fire pump 23 is started, fire water is pumped from a fire water source 3 (such as a fire pool) and is conveyed to the foam spray control valve group box 8; and a pressure stabilizing pump 24 and a second pressure stabilizing tank 25 are arranged in the fire water output path, so that the supply pressure and the flow of the fire water can be ensured to be stable. The fire water inlet pipe 12 is connected with the fire water input end of the proportioning mixer 11 through the deluge valve 10, and a water supply side signal butterfly valve 26 is arranged on the fire water inlet pipe 12; the deluge valve 10 is preferably a diaphragm deluge valve, which has a water inlet chamber at the lower part, a water outlet chamber at the upper part and a pressure chamber at the side part, wherein the water inlet chamber is connected with the fire-fighting water inlet pipe 12, and the water outlet chamber is connected with the fire-fighting water input end of the proportioner 11; when the water pressure of the pressure chamber is greater than or equal to the water pressure of the water inlet chamber, the diaphragm in the deluge valve 10 is in a sealed state, namely the deluge valve 10 is closed, and the system cannot supply water to a pipe network; when the water pressure of the pressure chamber is smaller than that of the water inlet chamber, the diaphragm in the deluge valve 10 is in an open state, namely the deluge valve 10 is opened, and the system supplies water to the pipe network; the water supply side signal butterfly valve 26 is in an open state when the system is in a standby or working state, and is in a closed state when in maintenance or experiment, and is used for manually controlling the on-off of the fire water inlet pipe 12 and feeding back an on-off state signal.
The air compressor 5 is connected with a compressed air input end of the compressed air delivery main pipe 6, and an air storage tank 27 is arranged between the air compressor 5 and the compressed air input end of the compressed air delivery main pipe 6; the compressed air inlet pipe 14 of each foam spray control valve group box 8 is respectively connected with the compressed air output end of the compressed air delivery manifold 6; when the air compressor 5 is started, compressing the outside air and conveying the compressed outside air to the foam spray control valve group box 8; the air tank 27 is provided in the compressed air output path, and the supply pressure and flow rate of the compressed air can be ensured to be stable. A compressed air ball valve 28, a second electromagnetic valve 29 and a second check valve 30 are arranged on the compressed air inlet pipe 14; wherein, the compressed air ball valve 28 is in a normally open state, and is used for manually disconnecting the pipeline during pipeline maintenance; the second electromagnetic valve 29 is in a closed state when the system is in a standby state and in an open state when the system is in a working state, is preferably a manual-automatic valve and can be opened manually when no power is supplied, and is used for manually or electrically controlling the on-off of the compressed air inlet pipe 14; the second check valve 30 serves to prevent the reverse flow of air in the compressed air inlet pipe 14.
The mixed liquid outlet pipe 15 is connected with the mixed liquid output end of the proportional mixer 11, and a system side signal butterfly valve 31 is arranged on the mixed liquid outlet pipe 15; the system side signal butterfly valve 31 is in an open state when the system is in a standby or working state, and is in a closed state when in overhaul or test, and is used for manually controlling the on-off of the mixed liquid outlet pipe 15 and feeding back an on-off state signal.
The outside of fire water inlet pipe 12 is connected with first outlet pipe 32, be provided with second filter 33, fire water pressure gauge 34 and third check valve 35 on the first outlet pipe 32, the end of first outlet pipe 32 with pressure chamber connects, pressure chamber is connected with parallelly connected deluge valve opening solenoid valve 36 and the manual ball valve 37 that opens of deluge valve that sets up. The second filter 33 is preferably a Y-shaped filter, and is used for filtering larger particles in the fire-fighting water to prevent downstream systems from being blocked and failing; the fire water pressure gauge 34 is used for detecting the delivery pressure of fire water in real time; the third check valve 35 is used for preventing the fire water in the first water outlet pipe 32 from flowing backwards; the deluge valve opening solenoid valve 36 is in a closed state when the system is in a standby state, and is in an open state when the system is in a working state, and is used for electrically controlling the deluge valve 10 to be opened and closed; the deluge valve manual-opening ball valve 37 is in a closed state in a standby state of the system and in an open state in a working state of the system, and is used for manually controlling the deluge valve 10 to be opened and closed, particularly in emergency situations when the deluge valve opening solenoid valve 36 fails. When the deluge valve opens the solenoid valve 36 or the deluge valve manually opens the ball valve 37 and opens, the water pressure in the pressure chamber is released, and when the water pressure in the pressure chamber is less than the water pressure in the water inlet chamber, the deluge valve 10 opens, and the system supplies water to the pipe network.
The external connection of water cavity has second outlet pipe 38, be provided with first play water ball valve 39 on the second outlet pipe 38, foam spraying control valve group case 8 still includes water conservancy alarm bell inlet tube 40, water conservancy alarm bell 41 and drain pipe 42, the end of intaking of water conservancy alarm bell inlet tube 40 with second outlet pipe 38 is connected, be provided with third filter 43, pressure switch 44 and water conservancy alarm bell inlet ball valve 45 on the water conservancy alarm bell inlet tube 40, the water outlet end of water conservancy alarm bell inlet tube 40 with the fire water input of water conservancy alarm bell 41 is connected, the fire water output of water conservancy alarm bell 41 with drain pipe 42 is connected. The first water outlet ball valve 39 is in an open state when the system is in a standby or working state, and is in a closed state when in overhaul or test, and is used for manually controlling the on-off of the second water outlet pipe 38; third filter 43 is preferably a Y-filter for filtering larger particles in the fire-fighting water and preventing downstream systems (e.g., pressure switch 44 and alarm 41) from clogging and failing; the pressure switch 44 is in a closed state when the system is in a standby state and is in an open state when the system is in a working state, and feeds back a deluge alarm valve opening signal to the fire control room to indirectly or directly start the fire pump 23, the foam pump 16 and the air compressor 5; the water inlet ball valve 45 of the hydraulic alarm bell is in an open state when the system is in a standby or working state, and is in a closed state when in maintenance or test, and is used for manually controlling the on-off of the water inlet pipe 40 of the hydraulic alarm bell.
In order to realize independent protection and fire extinguishing in a plurality of protection areas, the mixed liquor outlet pipe 15 of each foam spray control valve group box 8 is respectively connected with the mixed liquor input end of the mixed liquor conveying main pipe 7; each fire extinguishing device 9 is respectively connected with the mixed liquid output end of the mixed liquid conveying main pipe 7, and each fire extinguishing device 9 corresponds to a protection area and is connected with at least one spray head.
In conclusion, the compressed air foam fire extinguishing system of the utility model enables the fire extinguishing agent to form stable gas-liquid two-phase flow by connecting the compressed air pipeline to the mixing pipeline of fire fighting water and foam liquid, and simultaneously uses the compressed air as power to push the fire extinguishing agent to be conveyed to the pipe network by positive pressure, thereby avoiding the pressure fluctuation of the system, particularly the adverse effect on gas-liquid mixing, caused by the vacuum negative pressure formed by the nozzle at the pipe network side by utilizing the venturi effect. Therefore, the compressed air foam fire extinguishing system has the functions of automatically mixing to form the gas-liquid two-phase flow fire extinguishing agent, has a compact structure and stable pressure and flow, and is suitable for multi-area and multi-type fire extinguishing management and control occasions.
Preferably, in this embodiment, a third water outlet pipe 46 is connected to the outside of the water inlet chamber, a second water outlet ball valve 47 is disposed on the third water outlet pipe 46, and the third water outlet pipe 46 is connected to the water inlet end of the water inlet pipe 40 of the hydraulic alarm bell. The second water outlet ball valve 47 is in a closed state when the system is in a standby or working state, and is in an open state when in overhaul or test, and is used for manually controlling the on-off of the third water outlet pipe 46. Such a design may facilitate a technician servicing or testing hydraulic alarm 41 without opening deluge valve 10.
Preferably, in this embodiment, in order to facilitate debugging and maintenance of the compressed air foam fire extinguishing system and ensure that the fire extinguishing system can normally operate, a debugging tube 48 is connected to the mixed liquid outlet pipe 15 between the system side signal butterfly valve 31 and the proportioner 11, a debugging tube pressure gauge 49 and a debugging tube ball valve 50 are arranged on the debugging tube 48, and the end of the debugging tube 48 is connected to the drain pipe 42. The debugging tube pressure gauge 49 is used for detecting the pressure of fluid in the debugging tube 48; the test tube adjusting ball valve 50 is in a closed state when the system is in a standby or working state, and is in an open state when in overhaul or test, and is used for manually controlling the on-off of the test tube adjusting 48. Therefore, when the compressed air foam fire extinguishing system needs to be debugged or overhauled, the system side signal butterfly valve 31 does not need to be opened.
More preferably, in this embodiment, the foam liquid pump 16 is connected in parallel with a spare foam liquid pump 51, and the spare foam liquid pump 51 can be used in an emergency when the foam liquid pump 16 is damaged and cannot work, so as to ensure that the system can normally supply foam liquid.
Preferably, in this embodiment, the fire pump 23 is connected in parallel with a spare fire pump 52, and this spare fire pump 52 can be used in emergency under the condition that the fire pump 23 can not work because of damaging, and the normal fire water supply of system is guaranteed.
Preferably, in this embodiment, in order to realize the control of the foam pump 16, the standby foam pump 51, the fire pump 23, the standby fire pump 52, the air compressor 5, the pressure stabilizing pump 24, the water supply side signal butterfly valve 26, the system side signal butterfly valve 31, the first electromagnetic valve 20, the second electromagnetic valve 29 and the rain valve opening electromagnetic valve 36, the compressed air foam fire extinguishing system further includes a fire extinguishing controller, and the fire extinguishing controller is respectively in communication connection with the foam pump 16, the standby foam pump 51, the fire pump 23, the standby fire pump 52, the air compressor 5, the pressure stabilizing pump 24, the water supply side signal butterfly valve 26, the system side signal butterfly valve 31, the first electromagnetic valve 20, the second electromagnetic valve 29 and the rain valve opening electromagnetic valve 36 through signal cables or wireless transmission modules.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (8)
1. A compressed air foam fire extinguishing system is characterized by comprising a foam concentrate storage tank, a foam concentrate conveying main pipe, a fire fighting water source, a fire fighting water conveying main pipe, an air compressor, a compressed air conveying main pipe, a mixed liquid conveying main pipe, at least one foam spray control valve group box and at least one fire extinguishing device, wherein the foam spray control valve group box comprises a rain valve, a proportional mixer, a fire fighting water inlet pipe, a foam concentrate inlet pipe, a compressed air inlet pipe and a mixed liquid outlet pipe;
the foam liquid storage tank is connected with the foam liquid input end of the foam liquid conveying main pipe through a foam liquid pump, the foam liquid input end of the foam liquid conveying main pipe is connected with a first pressure stabilizing tank or a pressure maintaining relief valve, and the first pressure stabilizing tank or the pressure maintaining relief valve is positioned on the output side of the foam liquid pump; a foam liquid inlet pipe of each foam spray control valve group box is respectively connected with a foam liquid output end of the foam liquid conveying main pipe; the foam liquid inlet pipe is connected with a foam liquid input end of the proportioning mixer, and a foam liquid ball valve, a first filter, a first electromagnetic valve, a balance valve and a first check valve are arranged on the foam liquid inlet pipe;
the fire-fighting water source is connected with a fire-fighting water input end of the fire-fighting water conveying main pipe through a fire-fighting water pump, the fire-fighting water pump is connected with a pressure stabilizing assembly in parallel, and the pressure stabilizing assembly comprises a pressure stabilizing pump and a second pressure stabilizing tank which are connected in sequence; the fire water inlet pipe of each foam spray control valve group box is respectively connected with the fire water output end of the fire water conveying main pipe; the fire-fighting water inlet pipe is connected with a fire-fighting water input end of the proportional mixer through the deluge valve, and a water supply side signal butterfly valve is arranged on the fire-fighting water inlet pipe;
the air compressor is connected with a compressed air input end of the compressed air conveying main pipe, and an air storage tank is arranged between the air compressor and the compressed air input end of the compressed air conveying main pipe; a compressed air inlet pipe of each foam spray control valve group box is respectively connected with a compressed air output end of the compressed air delivery main pipe; the compressed air inlet pipe is connected with a compressed air input end of the proportional mixer or a mixed liquid output end of the proportional mixer, and a compressed air ball valve, a second electromagnetic valve and a second check valve are arranged on the compressed air inlet pipe;
the mixed liquid outlet pipe of each foam spray control valve group box is respectively connected with the mixed liquid input end of the mixed liquid conveying main pipe, the mixed liquid outlet pipe is connected with the mixed liquid output end of the proportional mixer, and a system side signal butterfly valve is arranged on the mixed liquid outlet pipe;
each fire extinguishing device is respectively connected with the mixed liquid output end of the mixed liquid conveying main pipe, and each fire extinguishing device respectively corresponds to one protection area and is connected with at least one spray head.
2. The compressed air foam fire suppression system of claim 1, wherein the deluge valve has a lower water inlet chamber connected to the fire water inlet pipe, an upper water outlet chamber connected to the fire water inlet end, and a side pressure chamber; the fire-fighting water inlet pipe is characterized in that a first water outlet pipe is connected to the outside of the fire-fighting water inlet pipe, a second filter, a fire-fighting water pressure gauge and a third check valve are arranged on the first water outlet pipe, the tail end of the first water outlet pipe is connected with a pressure chamber, and the pressure chamber is connected with a deluge valve opening electromagnetic valve and a deluge valve manual opening ball valve which are arranged in parallel.
3. The compressed air foam fire extinguishing system according to claim 2, wherein a second water outlet pipe is connected to the outside of the water outlet chamber, a first water outlet ball valve is arranged on the second water outlet pipe, the foam spray control valve set box further comprises a water inlet pipe, a water alarm bell and a water outlet pipe, the water inlet end of the water inlet pipe is connected with the second water outlet pipe, a third filter, a pressure switch and a water inlet ball valve of the water alarm bell are arranged on the water inlet pipe, the water outlet end of the water inlet pipe of the water alarm bell is connected with the fire water input end of the water alarm bell, and the fire water output end of the water alarm bell is connected with the water outlet pipe.
4. The compressed air foam fire extinguishing system according to claim 3, wherein a third water outlet pipe is connected to the outside of the water inlet chamber, a second water outlet ball valve is arranged on the third water outlet pipe, and the third water outlet pipe is connected with the water inlet end of the water inlet pipe of the hydraulic alarm bell.
5. The compressed air foam fire extinguishing system according to claim 3, wherein a mix outlet pipe between the system side signal butterfly valve and the proportional mixer is connected with a mix tube, a mix tube pressure gauge and a mix tube ball valve are arranged on the mix tube, and the end of the mix tube is connected with the drain pipe.
6. The compressed air foam fire extinguishing system according to claim 2, further comprising a fire extinguishing controller in communication connection with the foam liquid pump, the fire pump, the air compressor, the surge tank, the water supply side signal butterfly valve, the system side signal butterfly valve, the first solenoid valve, the second solenoid valve, and the deluge valve opening solenoid valve, respectively, through signal cables or a wireless transmission module.
7. The compressed air foam fire suppression system of claim 6, wherein the foam pump is connected in parallel with a backup foam pump, and the fire suppression controller is respectively in communication connection with the backup foam pump through a signal cable or a wireless transmission module.
8. The compressed air foam fire suppression system of claim 6, wherein the fire pump is connected in parallel with a backup fire pump, and the fire suppression controller is respectively in communication connection with the backup fire pump through a signal cable or a wireless transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123251054.XU CN216703233U (en) | 2021-12-22 | 2021-12-22 | Compressed air foam fire extinguishing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123251054.XU CN216703233U (en) | 2021-12-22 | 2021-12-22 | Compressed air foam fire extinguishing system |
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| CN216703233U true CN216703233U (en) | 2022-06-10 |
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| CN202123251054.XU Active CN216703233U (en) | 2021-12-22 | 2021-12-22 | Compressed air foam fire extinguishing system |
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| CN (1) | CN216703233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115920290A (en) * | 2023-02-01 | 2023-04-07 | 江南造船(集团)有限责任公司 | Marine fixed foam fire extinguishing system and boats and ships |
| CN117653978A (en) * | 2023-12-11 | 2024-03-08 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
-
2021
- 2021-12-22 CN CN202123251054.XU patent/CN216703233U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115920290A (en) * | 2023-02-01 | 2023-04-07 | 江南造船(集团)有限责任公司 | Marine fixed foam fire extinguishing system and boats and ships |
| CN117653978A (en) * | 2023-12-11 | 2024-03-08 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
| CN117653978B (en) * | 2023-12-11 | 2024-05-28 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
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