CN113198129B - Compressed air foam extinguishing device intelligently adapting to multiple fire scenes - Google Patents
Compressed air foam extinguishing device intelligently adapting to multiple fire scenes Download PDFInfo
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- CN113198129B CN113198129B CN202110545257.5A CN202110545257A CN113198129B CN 113198129 B CN113198129 B CN 113198129B CN 202110545257 A CN202110545257 A CN 202110545257A CN 113198129 B CN113198129 B CN 113198129B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
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Abstract
The invention discloses a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which comprises a control unit, wherein the control unit is respectively connected with a fire alarm unit, a manual decision unit, a foam supply unit, a water supply unit, an air compressor, a flow meter I, a flow meter II, a flow meter III, a pressure sensor I, a pressure sensor II, a pressure sensor III, a three-way valve I, a three-way valve II, a three-way valve III, a three-way valve IV, a three-way valve V, a regulating valve I, a regulating valve II, a mixing chamber I and a mixing chamber II. The invention solves the problems of single fire extinguishing scene, single mixing chamber and no redundancy of the traditional compressed air foam fire extinguishing device.
Description
Technical Field
The invention belongs to the technical field of fire fighting and extinguishment, and relates to a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes.
Background
The fire extinguishing mode of the prior fire extinguishing mainly comprises dry powder fire extinguishing, carbon dioxide fire extinguishing, foam type fire extinguishing, water type fire extinguishing, suffocation fire extinguishing, chemical suppression fire extinguishing and the like, wherein the fire extinguishing through a compressed air foam fire extinguishing system is the main mode of quickly extinguishing large-area fire at present. Meanwhile, liquid is separated out from the foam in the fire extinguishing process, so that the comburent can be cooled. The water vapor generated by heating can also reduce the oxygen concentration near the combustion object, thereby achieving better fire extinguishing effect.
However, the existing compressed air foam fire extinguishing system has the same general structure, and the compressed air foam fire extinguishing devices in different fire scenes only have a mixing chamber for mixing foam solution and air. The compressed air foam fire extinguishing device with different fire extinguishing scenes adopts a single mixing chamber, and the compressed air foam fire extinguishing device with single fire extinguishing scene cannot be suitable for multiple fire scenes due to the single mixing chamber. In addition, in the compressed air foam fire extinguishing apparatus, the mixing chamber is a vital part of the compressed air foam fire extinguishing apparatus, and no redundant mixing chamber is used as a spare, so that the condition that the foam is directly influenced by the damage of the mixing chamber, and the fire extinguishing effect is influenced.
Disclosure of Invention
The invention aims to provide a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, and solves the problems that the traditional compressed air foam fire extinguishing device is single in fire extinguishing scene, single in mixing chamber and free of redundancy.
The invention adopts the technical scheme that the compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes comprises a control unit, wherein the control unit is respectively connected with a fire alarm unit, a manual decision unit, a foam supply unit, a water supply unit, an air compressor, a flow meter I, a flow meter II, a flow meter III, a pressure sensor I, a pressure sensor II, a pressure sensor III, a three-way valve I, a three-way valve II, a three-way valve III, a three-way valve IV, a three-way valve V, a regulating valve I, a regulating valve II, a mixing chamber I and a mixing chamber II.
The invention is also characterized in that:
the inlet of the mixing chamber I is divided into two branches, the first inlet branch of the mixing chamber I is connected with a three-way valve II through a pipeline, and the first interface of the three-way valve II is connected with the mixing chamber I; the interface two-way of the three-way valve II is connected with the inlet branch I of the mixing chamber II through a pipeline; the interface tee joint of the three-way valve II is connected with the interface I of the three-way valve I through a pipeline, and a flow meter I, an adjusting valve I and a one-way valve are sequentially arranged on a connecting pipeline between the interface I of the three-way valve I and the interface III of the three-way valve II; a pressure sensor I is arranged at one inlet branch of the mixing chamber I;
a second branch of the mixing chamber I is connected with a first interface of a three-way valve III, a second interface of the three-way valve III is connected with a second inlet branch of the mixing chamber II, a third interface of the three-way valve III is connected with an air compressor through a pipeline, and a connecting pipeline between the third interface of the three-way valve III and the air compressor is sequentially provided with a one-way valve, an adjusting valve II and a flow meter II; and a pressure sensor II is arranged at the inlet branch of the mixing chamber I.
And a pressure sensor I is arranged at a first inlet branch of the mixing chamber II, and a pressure sensor II is arranged at a second inlet branch of the mixing chamber II.
The second interface of the three-way valve I is connected with the foam supply unit, and the third interface of the three-way valve I is connected with the water supply unit;
an outlet of the mixing chamber I is connected with a first interface of a three-way valve IV through a pipeline, a second interface of the three-way valve IV is connected with a plant area A through a pipeline, a third interface of the three-way valve IV is connected with a first interface of a three-way valve V, and a second interface of the three-way valve V is connected with a plant area B through a pipeline; a pressure sensor III is arranged at the outlet pipeline of the mixing chamber I;
the third port of the three-way valve V is connected with the outlet of the mixing chamber II through a pipeline; a flow meter III and a one-way valve are sequentially arranged on a connecting pipeline between the three-way valve V and the mixing chamber II; and a pressure sensor III is arranged on an outlet pipeline of the mixing chamber II.
And one-way valves are arranged on the pipeline of the three-way valve IV connected with the plant area A and on the connecting pipeline between the three-way valve V and the plant area B.
And temperature sensors are arranged in the plant area A and the plant area B.
The fire disaster alarm device has the advantages that the fire disaster alarm unit is used for collecting fire disaster occurrence information, the control unit is used for analyzing or artificially deciding and judging the information, then the control unit is used for controlling the on-off of the valves of the air passage and the foam concentrate, and the control unit is used for judging the scene of the fire disaster and the type of the fire disaster according to the collected fire disaster information, so that the foam supply unit is controlled to supply foam extinguishing agent for the corresponding fire disaster scene, and the mixing chamber is quickly switched to the foam mixing chamber for the corresponding fire disaster scene. Its beneficial effect is, can carry out the pertinence through the conflagration fast to different scenes and put out a fire, the many scene ability of putting out a fire of foam fire extinguishing systems has been expanded to can regard as redundant setting, when a certain mixing chamber takes place to damage, can be fast effectual switch it into harmless mixing chamber, improve extinguishing device's reliability, can also control water and foam stoste and air compressor flow and pressure through the control unit, the realization is to output foam concentrate foaming multiple, the nimble control of output foam size.
Drawings
FIG. 1 is a schematic structural diagram of a compressed air foam fire extinguishing apparatus intelligently adapting to multiple fire scenes according to the invention;
FIGS. 2(a) - (c) are schematic diagrams of mixing chambers of a compressed air foam fire extinguishing apparatus for intelligently adapting to multiple fire scenes according to the present invention in different fire scenes;
fig. 3 is a block diagram of a control method of the compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes.
In the figure, 1, a fire alarm unit, 2, a human decision unit, 3, a control unit, 5, three-way valves I and 6, an air compressor, 7, a flow meter I and 8, a regulating valve I and 9, a one-way valve, 10, a three-way valve II and 11, a three-way valve III and 12, a pressure sensor I and 13, a pressure sensor II and 14, a mixing chamber I and 15, a mixing chamber II and 16, a three-way valve IV and 17, a flow meter II and 18, a regulating valve II and 19, a flow meter III and 20, a pressure sensor III and 21, a water supply unit, 22, a foam supply unit, 25, a three-way valve V and 31, a fire alarm input signal, 32, a human decision input signal, 35, a pipeline feedback signal, 36, a data processing unit and 37, a pipeline execution mechanism signal.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which comprises a control unit 3, wherein the control unit 3 is respectively connected with a fire alarm unit 1, a human decision unit 2, a water supply unit 21, a foam supply unit 22, a flow meter I7, a flow meter II17, a flow meter III19, a pressure sensor I12, a pressure sensor II13, a pressure sensor III20, a three-way valve I5, a three-way valve II10, a three-way valve III11, a three-way valve IV16, a three-way valve V25, a regulating valve I8, a regulating valve II18, an air compressor 6, a mixing chamber I14 and a mixing chamber II 15;
the structure of each unit is specifically as follows:
the control unit 3 adopts a PLC CPU 1513R;
the control unit 3 functions as: the fire alarm input signal 31, the human decision input signal 32 and the pipeline feedback signal 35 are received and processed, and the actuating mechanism of the valve in the pipeline acts according to the issued instruction. And the opening degrees of the foam supply unit 22, the air compressor 6 and the water supply unit 21 and the regulating valve can be regulated according to the information (the pressure returned by the pressure sensor, the flow value returned by the flow meter, the size of the valve opening degree, the supply amount of the foam supply unit 22, the air supply amount of the air compressor 6, the supply amount of the water supply unit 21) fed back from the pipeline.
The control unit 3 is used for receiving the detected information of the fire alarm unit 1, the human decision unit 2, the flow meters and the pressure sensors in the air pipelines and the liquid pipelines, processing the detected information, and controlling the valves in the mixing chamber, the foam supply unit, the water supply unit, the air compressor, the air pipelines and the liquid pipelines to perform corresponding actions according to the processing result. The fire alarm system comprises a fire alarm input signal 31, a human decision input signal 32, a data processing unit 36, a pipeline feedback signal 35 and a pipeline actuating mechanism signal 37.
The fire alarm input signal 31 is temperature information collected by the fire alarm unit 1 from the plant a solid matter and plant B liquid matter … … temperature sensors, and then transfers its value information to the data processing unit 36.
The artificial decision input signal is used for artificially judging the fire type situation and then manually selecting and inputting the fire type information.
The pipeline feedback signal 35 is information of flow rate monitored by a flow meter in the pipeline of the device, pressure monitored by a pressure sensor, and on/off of a three-way valve.
The data processing unit 36 is an execution mechanism that digitally processes the fire alarm input signal 31, the artificial decision input signal 32, and the pipeline feedback signal 35 by an embedded chip (which may be a PLC, a single machine, a DSP, an FPGA, or the like, or any chip capable of processing and calculating input data) with a processing program, and then outputs the processing result to the pipeline.
The pipeline actuator signal 37 is a signal processed by the data processing unit 36 and transmitted to the three-way valve actuator, and controls the opening and closing of each three-way valve in the device.
The foam supply unit 22 comprises a class A foam extinguishing agent, a class B foam extinguishing agent and other fire extinguishing agents, a foam pump, a foam flow meter and corresponding valves, and is used for selecting the fire extinguishing agent corresponding to a fire extinguishing scene according to signals transmitted by the control unit for subsequent fire extinguishing.
The water supply unit 21 comprises a reservoir or a fire hose connector and a water pump. Which is a unit that provides water flow for the foam fire suppression system for foam concentrate mixing and subsequent air mixing.
And the air compressor 6 is a device for providing air for foaming the foam mixed liquid in the mixing chamber, and can realize flexible control on air supply according to corresponding information of the control unit.
The mixing chamber is a general term for mixing chamber structures suitable for different fire-extinguishing scenes and comprises a mixing chamber structure suitable for A-type foam extinguishing agents (mixing chamber I14), a mixing chamber structure suitable for B-type foam extinguishing agents (mixing chamber II15), a multi-fire scene mixing chamber structure, a multi-foaming multiple mixing chamber structure, a redundant scene mixing chamber structure and a mixing chamber structure suitable for other fire-extinguishing scenes. It also includes a mixing chamber structure with a large pressure loss and a mixing chamber structure with a small pressure loss.
The fire alarm unit 1 can adopt a PLC analog input module 6ES 7134;
the function of the fire alarm unit 1 is: the sensor temperature value analog quantity input modules 6ES7134 of the factory A and the factory B are transmitted to the control unit 3;
the fire alarm unit comprises a plant area A temperature sensor and a plant area B temperature sensor (for example, the plant area A is fire solid such as wood, coal, cotton, wool, hemp and paper placed in the plant area A, and the plant area B is inflammable liquid substances such as gasoline, kerosene, diesel oil, crude oil, methanol and the like stored in the plant area B), and aims to collect the temperature condition monitored by the corresponding plant area back to the fire alarm unit, so that the fire alarm unit transmits the fire condition to the control unit 3.
The human decision unit 2 adopts a PLC KTP1200 series touch screen;
the function of the human decision unit 2 is: inputting the actual fire condition of the factory building A or B observed by the inspector into the control unit;
the artificial decision unit 2 is used for controlling the control unit artificially if a fire occurs in the plant A, B by a fire fighter, and controlling the control unit artificially (for example, when the plant a is on fire due to the storage of liquid inflammable matter and the temperature sensor of the plant a does not reach the alarm temperature, the fire fighter can select a mixing chamber corresponding to the plant a in the artificial decision unit and then perform fire extinguishing operation, which means that the temperature sensor may be damaged or the temperature sensor may need a certain time to reach the specified temperature, and if the fire fighter and the monitor find in the process, the mixing chamber can be switched in advance and the fire extinguishing operation can be performed) and the artificial decision unit can interact with the control unit 3 in a touch screen, a key, voice and other modes.
The inlet of the mixing chamber I14 is divided into two branches, wherein the first branch is connected with a three-way valve II10 through a pipeline, and the first interface of the three-way valve II10 is connected with the mixing chamber I14; the interface two-way valve II10 is connected with the inlet branch I of the mixing chamber II15 through a pipeline; a joint three-way valve of the three-way valve II10 is connected with a joint I of the three-way valve I5 through a pipeline, and a connecting pipeline between the joint I of the three-way valve I5 and a joint III of the three-way valve II10 is sequentially provided with a flowmeter I7, an adjusting valve I8 and a one-way valve 9; a pressure sensor I12 is arranged at one inlet branch of the mixing chamber I14;
a second branch of the mixing chamber I14 is connected with a first interface of a three-way valve III11, a second interface of the three-way valve III11 is connected with a second inlet branch of the mixing chamber II15, a third interface of the three-way valve III11 is connected with the air compressor 6 through a pipeline, and a connecting pipeline between a third interface of the three-way valve III11 and the air compressor 6 is sequentially provided with a one-way valve 9, a regulating valve II18 and a flowmeter II 17; a pressure sensor II13 is arranged at the inlet branch II of the mixing chamber I14;
a pressure sensor I12 is arranged at the first inlet branch of the mixing chamber II15, and a pressure sensor II13 is arranged at the second inlet branch of the mixing chamber II 15.
The second interface of the three-way valve I5 is connected with the foam supply unit 22, and the third interface of the three-way valve I5 is connected with the water supply unit 21;
an outlet of the mixing chamber I14 is connected with a first connector of a three-way valve IV16 through a pipeline, a second connector of a three-way valve IV16 is connected with a plant area A through a pipeline, a one-way valve 9 is arranged on a pipeline of the three-way valve IV16 connected with the plant area A, a third connector of a three-way valve IV16 is connected with a first connector of a three-way valve V25, a second connector of the three-way valve V25 is connected with a plant area B through a pipeline, and a connecting pipeline between the three-way valve V25 and the plant area B is provided with the one-way valve 9; a pressure sensor III20 is arranged at the outlet pipeline of the mixing chamber I14;
a third connector of the three-way valve V25 is connected with an outlet of the mixing chamber II15 through a pipeline; a connecting pipeline between the three-way valve V25 and the mixing chamber II15 is sequentially provided with a flowmeter III19 and a one-way valve 9; an outlet pipeline of the mixing chamber II15 is provided with a pressure sensor III 20;
the flow meter I7, the regulating valve I8, the three-way valve II10, the three-way valve III11, the pressure sensor I12, the pressure sensor II13, the three-way valve IV16, the flow meter II17, the regulating valve II18, the flow meter III19 and the pressure sensor III20 are all connected with the control unit 3 and driven to operate by the control unit 3. The mixing chamber I14 is a mixing chamber suitable for a solid fire extinguishing scene, and is used for mixing water supplied by the water supply unit 21, foam supplied by the foam supply unit 22 and air supplied by the air compressor 6 to generate compressed air foam.
Mixing chamber II15 is a liquid mixing chamber.
The invention relates to a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which comprises the following working processes:
the method comprises the following two processes: process 1, the mixing chamber is selected by the control unit 3, for example for a solid fire, i.e.: the three-way valve II10 is opened to the mixing chamber I14 by a regulating valve I8, the three-way valve II10 is closed to the mixing chamber II15 by a regulating valve I8, the three-way valve III11 is opened to the mixing chamber I14 by a regulating valve II18, the three-way valve III11 is closed to the mixing chamber II15 by a regulating valve II18, the three-way valve IV16 is opened to the plant A pipeline by a flow meter III19, and the three-way valve IV16 is closed to the plant B pipeline by a flow meter III 19;
process 2, after the mixing chamber is switched to a proper mixing chamber, the control unit 3 controls the air compressor 6, the water supply unit 21 and the foam supply unit 22 to be started, the control unit 3 controls the three-way valve I5 to be opened, so that the water supply unit 21 and the foam supply unit 22 converge in the three-way valve I5 and then flow through the flowmeter I7 to be measured to obtain a flow value, the flow value is transmitted to the control unit 3, then the control unit 3 controls the opening of the regulating valve I8 to regulate the size of the mixture of foam and water, the liquid is prevented from flowing back through the one-way valve 9, finally the mixture flows into the mixing chamber I14 through the three-way valve II10, the pressure sensor I12 transmits the pressure value back to the control unit 3, meanwhile, the air is output to the flowmeter II17 through the air compressor 6 to be measured to obtain an air flow value, then the air flow value is transmitted to the control unit 3, the control unit 3 controls the opening of the regulating valve II18 to regulate the flow value of the air input, then enters a mixing chamber I14 through a three-way valve III11, the pressure value of the mixture entering the mixing chamber is transmitted back to the control unit 3 through a pressure sensor II13, the foam and water mixture and air are mixed in the mixing chamber I14, the output foam pressure value is monitored and transmitted back to the control unit 3 through a pressure sensor III20 on a pipeline, the monitored foam flow value is transmitted back to the control unit 3 through a flow meter III19, and finally the backflow is prevented through a one-way valve 9, and then the foam is transmitted to a plant area A through a three-way valve IV16 and then a check valve to be sprayed with foam.
The invention relates to a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which is characterized in that in the fire extinguishing process, numerical signals of temperature sensors of a plant area A and a plant area B are monitored by a fire alarm unit 1, and then are fed back to a control unit 3, a human decision unit 2 can observe the fire situation of the plant area according to inspectors, the fire information of the plant area is manually selected and sent to the control unit 3, then the control unit 3 controls a three-way valve II10 and a three-way valve III11 according to the fire signals, so that a mixing chamber I14 and a mixing chamber II15 are selected, after the selection is finished, the control unit 3 sends starting signals to a foam supply unit 22, a water supply unit 21 and an air compressor 6, and the control unit 3 controls a three-way valve I5, a three-way valve II10, a three-way valve III11 and a three-way valve IV16), a regulating valve I8, a regulating valve II18, a flow meter I7 and a flow meter II17, The flow meter III19, the pressure sensor I12, the pressure sensor II13 and the pressure sensor III20 are communicated to acquire data information of the whole device in the operation process, and the control unit 3 is used for controlling and adjusting the foam supply unit 22, the water supply unit 21, the air compressor 6, the adjusting valve I8 and the adjusting valve II18 in real time, so that the output compressed air foam can keep stable operation after reaching a required error range (for example, the error allowable range is plus or minus 5% under the condition that the gas-liquid ratio is 6: 1, namely the gas-liquid ratio is 5.7:1-6.3:1 all meet the requirements), different mixing chambers are adopted under different fire scenes, the switching to a standby mixing chamber under the redundancy condition is realized, and the switching to the mixing chamber with a corresponding foaming structure under different foaming conditions of low, medium and high requirements is realized, thereby quickly and effectively extinguishing fire.
Fig. 2 is a schematic view of a mixing chamber of the present invention in different fire extinguishing scenarios, wherein fig. 2(a) is a multiple fire scenario mixing chamber, fig. 2(b) is a multiple bubble mixing chamber, and fig. 2(c) is a redundant scenario mixing chamber, and in different medium class fire scenarios, a dedicated mixing chamber can be used for extinguishing the fire, thereby achieving the most effective fire extinguishing of a specific class of fire. The multiple foaming times can realize quick and effective selection of low, medium and high foaming times under the condition of requiring multiple medium foaming times. Redundant scenarios in the case of high fire extinguishing reliability, a plurality of devices with identical mixing chambers are used, and when one of the devices is in trouble, the redundant mixing chamber can be immediately switched to, so that the reliability of the whole device is realized.
FIG. 3 is a block diagram of a method for intelligent and rapid selection of a suitable mixing chamber according to the present invention, which comprises: a fire alarm input signal 31, a human decision input signal 32, a data processing unit 36, a pipeline feedback signal 35, and a pipeline actuator signal 37.
The invention relates to a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which is implemented by intelligently and quickly switching appropriate mixing chambers and comprises the following steps:
step 1, external information is transmitted into a control unit 3 by an external fire alarm unit 1, a human decision unit 2 and various connecting pipelines.
And 2, obtaining a fire alarm input signal 31 (namely, the temperature value of a liquid substance temperature sensor stored in a plant area A and the temperature value of a gas substance temperature sensor stored in a plant area B) by the fire alarm unit 1 in the step 1, inputting the fire alarm input signal into the control unit 3, selecting a corresponding fire signal under the condition that an inspector observes a fire, inputting the fire signal into a human decision input signal 32 in the control unit by the human decision unit 2, inputting flow in a pipeline and a pressure valve switch signal into a pipeline feedback signal (35) of the control unit 3, and then transmitting the numerical signals to the data processing unit 36 for calculation and processing.
And 3, the data processing unit 36 receives the fire alarm input signal 31, the artificial decision input signal 32 and the pipeline feedback signal 35, processes and calculates the input signals through the data processing unit 36, and then outputs a pipeline execution mechanism signal 37.
And 4, controlling opening and closing of the three-way valve I5, the three-way valve II10, the three-way valve III11, the three-way valve IV16 and the three-way valve V25 according to the output signal conditions according to the pipeline actuator signal 37, so as to select an optimal mixing chamber.
And 5, under the condition that the step 4 is completed, starting each unit, starting to produce compressed air foam and extinguish fire in a mixing chamber which is most suitable for a fire scene, feeding back water, foam, air flow, pressure and the like in a pipeline to the data processing unit 36 through the pipeline feedback signal 35 in the dynamic process, and adjusting the water supply unit 21, the foam supply unit 22 and the air compressor 6 according to the data processing unit 36 to finally achieve the optimal effect of outputting the foam flow and the foam quality.
The invention relates to an operation process of a compressed air foam fire extinguishing device intelligently adapting to multiple fire scenes, which comprises the steps of firstly inputting a fire temperature set value (which is solid and liquid, and can generate the critical temperature of a fire when a gas substance exceeds the temperature) M into a control unit through a human decision unit, then judging whether a human decision signal is input by an inspector when the inspector discovers the fire condition from the outside, directly switching a mixing chamber into a mixing chamber corresponding to the fire scene when the artificial decision signal is input, and not executing the temperature judgment operation of a fire alarm unit on a factory area A, B. And when no artificial decision signal exists, simultaneously judging whether the numerical value AM of the plant area A temperature sensor input into the control unit from the fire alarm unit is larger than a fire temperature set value M or not, and whether the numerical value BM of the plant area B temperature sensor is larger than the fire temperature set value M or not, and determining A, B according to the judgment condition, and switching on and off the mixing chamber. Then, the opening and closing conditions of the three-way valve are determined according to the final opening condition of the mixing chamber, and the control unit sends related command signals to the three-way valve. When the three-way valve acts, the mixing chamber corresponding to the fire scene is successfully switched, and then the whole device is started to operate through the control unit, namely: the air compressor machine, the foam feed unit, the water feed unit, the governing valve, pressure sensor, flow sensor etc. all power-on operation begins to spray the foam, in the device operation process, can flow in the middle of the real-time supervision pipeline, pressure data, adjust the air compressor machine according to its data, the foam feed unit, the water feed unit, governing valve work, the compressed air foam of messenger reaches best effect, can judge the pipeline flow in real time at the operation in-process, pressure data reaches best effect error range, if do not, can continue to adjust, until satisfying the requirement. And finally stopping the device after the whole fire extinguishing process is finished.
Specific method example 1 is: when a plant area A in the figure 1 is fire solid such as wood, coal, cotton, wool, hemp, paper and the like, a plant area B is inflammable liquid materials such as gasoline, kerosene, diesel oil, crude oil, methanol and the like, a mixing chamber I14 is a solid fire mixing chamber, and a mixing chamber II15 is a liquid fire mixing chamber, when an inspector finds that a fire breaks out in the plant area A, the solid fire can be directly input through a human decision signal, then the control unit receives the input information and directly selects the mixing chamber I14 to open the solid mixing chamber, the mixing chamber II15 is closed, the liquid mixing chamber is closed, when no inspector finds that the fire breaks out in the plant area A, the fire alarm unit transmits numerical signals monitored by temperature sensors of the plant area A and the plant area B into the control unit through the fire alarm unit, the control unit judges the transmitted numerical values of the temperature sensors A and the temperature sensors B and a preset numerical value M, and the numerical value of the A is larger than M, and the value of B is less than M, so that the solid mixing chamber of the mixing chamber I14 is judged to be opened, and the liquid mixing chamber of the mixing chamber II15 is judged to be closed;
then, the control unit issues an execution signal of the pipeline tee joint, and the execution of the execution signal is that the three-way valve II10 is opened from the adjusting valve I8 to the mixing chamber I14, the three-way valve II10 is closed from the flow meter I8 to the mixing chamber II15, the three-way valve III11 is opened from the adjusting valve II18 to the mixing chamber I14, the three-way valve 11 is closed from the adjusting valve II18 to the mixing chamber II15, the three-way valve IV16 is opened from the flow meter 19 to the plant area A pipeline, the three-way valve IV16 is closed from the flow meter III19 to the plant area B pipeline, and then the control unit starts the whole device to operate: the air compressor machine, the foam feed unit, the water feed unit, the governing valve, pressure sensor, flow sensor etc. all power-on operation begins to spray the foam, in the device operation process, can flow in the middle of the real-time supervision pipeline, pressure data, adjust the air compressor machine according to its data, the foam feed unit, the water feed unit, governing valve work, the compressed air foam of messenger reaches best effect, can judge the pipeline flow in real time at the operation in-process, pressure data reaches best effect error range, if do not, can continue to adjust, until satisfying the requirement. And finally, stopping the device after the whole fire extinguishing process is finished.
Claims (1)
1. The utility model provides a compressed air foam extinguishing device of many conflagration scenes of intelligent adaptation which characterized in that: the system comprises a control unit, wherein the control unit is respectively connected with a fire alarm unit, a manual decision unit, a foam supply unit, a water supply unit, an air compressor, a flow meter I, a flow meter II, a flow meter III, a pressure sensor I, a pressure sensor II, a pressure sensor III, a three-way valve I, a three-way valve II, a three-way valve III, a three-way valve IV, a three-way valve V, a regulating valve I, a regulating valve II, a mixing chamber I and a mixing chamber II;
the inlet of the mixing chamber I is divided into two branches, the first inlet branch of the mixing chamber I is connected with a three-way valve II through a pipeline, and the first interface of the three-way valve II is connected with the mixing chamber I; the interface two-way of the three-way valve II is connected with the inlet branch I of the mixing chamber II through a pipeline; the interface tee joint of the three-way valve II is connected with the interface I of the three-way valve I through a pipeline, and a flow meter I, an adjusting valve I and a one-way valve are sequentially arranged on a connecting pipeline between the interface I of the three-way valve I and the interface III of the three-way valve II; a pressure sensor I is arranged at one inlet branch of the mixing chamber I;
a second branch of the mixing chamber I is connected with a first interface of a three-way valve III, a second interface of the three-way valve III is connected with a second inlet branch of the mixing chamber II, a third interface of the three-way valve III is connected with an air compressor through a pipeline, and a connecting pipeline between the third interface of the three-way valve III and the air compressor is sequentially provided with a one-way valve, an adjusting valve II and a flow meter II; a pressure sensor II is arranged at the inlet branch II of the mixing chamber I;
a pressure sensor I is arranged at a first inlet branch of the mixing chamber II, and a pressure sensor II is arranged at a second inlet branch of the mixing chamber II;
the second interface of the three-way valve I is connected with the foam supply unit, and the third interface of the three-way valve I is connected with the water supply unit;
an outlet of the mixing chamber I is connected with a first interface of a three-way valve IV through a pipeline, a second interface of the three-way valve IV is connected with a plant area A through a pipeline, a third interface of the three-way valve IV is connected with a first interface of a three-way valve V, and a second interface of the three-way valve V is connected with a plant area B through a pipeline; a pressure sensor III is arranged at the outlet pipeline of the mixing chamber I;
a third connector of the three-way valve V is connected with an outlet of the mixing chamber II through a pipeline; a flow meter III and a one-way valve are sequentially arranged on a connecting pipeline between the three-way valve V and the mixing chamber II; a pressure sensor III is arranged on an outlet pipeline of the mixing chamber II;
the three-way valve IV is connected with a pipeline of the plant area A, and one-way valves are arranged on connecting pipelines between the three-way valve V and the plant area B;
and temperature sensors are arranged in the plant area A and the plant area B.
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Citations (4)
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|---|---|---|---|---|
| CN203154684U (en) * | 2013-03-29 | 2013-08-28 | 西华大学 | Compressed gas foam extinguishing system for fire fighting truck |
| CN103272350A (en) * | 2013-06-21 | 2013-09-04 | 公安部天津消防研究所 | LNG and CNG automobile fire-resistant explosion-suppression system |
| CN206700539U (en) * | 2017-04-05 | 2017-12-05 | 公安部天津消防研究所 | A kind of fixed CAFS |
| CN211536279U (en) * | 2019-10-29 | 2020-09-22 | 国安达股份有限公司 | Disconnect-type compressed air foam fire extinguishing systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2247344A4 (en) * | 2008-02-15 | 2014-11-05 | Kurt Hiebert | Portable compressed gas foam system |
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2021
- 2021-05-19 CN CN202110545257.5A patent/CN113198129B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203154684U (en) * | 2013-03-29 | 2013-08-28 | 西华大学 | Compressed gas foam extinguishing system for fire fighting truck |
| CN103272350A (en) * | 2013-06-21 | 2013-09-04 | 公安部天津消防研究所 | LNG and CNG automobile fire-resistant explosion-suppression system |
| CN206700539U (en) * | 2017-04-05 | 2017-12-05 | 公安部天津消防研究所 | A kind of fixed CAFS |
| CN211536279U (en) * | 2019-10-29 | 2020-09-22 | 国安达股份有限公司 | Disconnect-type compressed air foam fire extinguishing systems |
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Effective date of registration: 20221101 Address after: 3 / F, unit 2, building 1, Yuehan international, 38 Jinye Road, high tech Zone, Xi'an, Shaanxi 710000 Patentee after: XI'AN SIMUL ELECTRIC Co.,Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 5 Patentee before: XI'AN University OF TECHNOLOGY |
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