Fire-fighting active water cloud, application of active water cloud and fire-fighting spraying device of active water cloud

Abstract

The application provides a live water cloud for fire fighting, application of the live water cloud and a live water cloud fire fighting spraying device.The live water cloud comprises 30% steam and 70% metastable water drops, and small molecule live water cloud water mist can be covered on a fire source to form an isolation layer; while being isolated, large molecule water mist gradually settles, so that the fire extinguishing effect is achieved, and three-dimensional full flooding type fire extinguishing of various fires is realized.For the application of the live water cloud, different live water cloud flow rates are set according to different scenes, and long time spraying is achieved as much as possible while ensuring the fire extinguishing effect.The live water cloud fire fighting spraying device can be applied to a fire fighting vehicle, can effectively generate a working condition of the live water cloud, has high output efficiency of the live water cloud based on a high-pressure pump, can stably and long time output the live water cloud, and meets actual demands of a rescue site.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of live water cloud fire-fighting technology, and particularly relates to a live water cloud for fire-fighting, application of the live water cloud and a live water cloud fire-fighting spraying device. BACKGROUND

[0002] In recent years, with the rapid development of social economy and the increase of human activities, fires are also increasing. Since water is cheap and widely available, most fire trucks use water as the main extinguishing agent for fire-fighting in most fires, and sometimes a large amount of chemical extinguishing agent is also needed. The large amount of extinguishing agent required and the low efficiency of the extinguishing agent will increase the loss of the fire, and the sprayed extinguishing agent may also increase other losses outside the fire; at the same time, the environment will also be polluted to a certain extent, and the subsequent rescue and cleaning work will be more difficult.

[0003] In recent years, many cities have built subways and large urban complexes, and the internal space of the subway and the large complex is large. Once a fire breaks out, it is extremely difficult to put out the fire, and several complex burning accidents have occurred, causing significant property losses to the people. Large space fire-fighting and rescue cannot meet the operational requirements according to the traditional fire-fighting method. SUMMARY

[0004] The purpose of the present application is to propose a new fire-fighting method based on live water cloud, so that it has the four best fire-fighting effects of cooling by water, dilution by nitrogen, isolation by foam and inhibition by chemical inhibitor, so as to meet the actual needs of various rescue sites, and propose a live water cloud fire-fighting spraying device that can stably output and ensure the output quality.

[0005] To achieve the above purpose, the present application proposes a live water cloud for fire-fighting, which comprises 30% steam and 70% metastable state water droplets, and the particle size of the metastable state water droplets is 0.1-10 μm; when the live water cloud is sprayed, the particle size of the metastable state water droplets is 0.1-0.3 μm, and 35 minutes after spraying, the water droplets with a particle size of 0.1-0.3 μm account for at least 30% of the total volume of the live water cloud.

[0006] The present application also proposes an application of the live water cloud in fire-fighting. In an indoor environment, based on the different fire sources, the following applications are applied:

[0007] For electrical fires, the spraying flow rate of the live water cloud is 5-10 L / min.m 3 ;

[0008] For liquid fires, the spraying flow rate of the live water cloud is 10-15 L / min.m 3 ;

[0009] For gas fires, the spraying flow rate of the live water cloud is 8-12 L / min.m 3 ;

[0010] Solid fire, the active water cloud injection flow is 10-20L / min.m 3 ;

[0011] Based on different environments, the following applies:

[0012] Outdoor environment, the active water cloud injection flow is 15-30L / min.m 3 ;

[0013] High ventilation environment, the active water cloud injection flow is 20-40L / min.m 3 .

[0014] The application also provides an active water cloud fire-fighting injection device, comprising a water storage tank, a high-pressure plunger pump, a burner, a water pipe detection module, a water gun and a controller.

[0015] The inlet of the high-pressure plunger pump is connected with the water storage tank through a booster pump; the water inlet of the burner is connected with the outlet of the high-pressure plunger pump, the water outlet of the burner is connected with the water spraying pipeline of the water gun through a water outlet pipeline, the water spraying pipeline is stored through the storage device 90 and penetrates the water pipe detection module; the controller is connected with the high-pressure plunger pump, the burner, the water pipe detection module, each electric control valve and the sensor signal.

[0016] Further, the burner is further connected with an oil inlet pipeline, the oil inlet pipeline is provided with an oil inlet electric control valve; the water outlet of the burner is provided with a pressure sensor and a temperature sensor, and the bottom of the burner is provided with a blowdown pipeline, the blowdown pipeline is provided with a blowdown electric control valve.

[0017] Further, the water outlet pipeline is provided with a safety valve and is electrically connected with the controller, when the pressure of the outlet pipeline is greater than a preset pressure threshold, the safety valve is opened; the water outlet pipeline is provided with a water spraying electric control valve, when the water spraying electric control valve is opened, water is sprayed outside through the water outlet pipeline.

[0018] Further, the water outlet pipeline is connected with the water storage tank and is provided with a backwater electric control valve, when the water spraying electric control valve is closed and the backwater electric control valve is opened, water flows to the water storage tank along the water outlet pipeline.

[0019] The water storage tank is provided with a liquid level sensor and a water tank temperature sensor, the liquid level sensor is used for detecting the liquid level in the water storage tank, and the water tank temperature sensor is used for detecting the water temperature in the water storage tank.

[0020] Further, the storage device 90 is provided with two groups of supports, the two groups of supports are both rotatably provided with rotating plates, and a plurality of clamping rollers are connected between the two groups of rotating plates.

[0021] Further, the water pipe detection module is located between the water gun and the storage device 90.

[0022] The water pipe testing module includes multiple testing boxes arranged in a row. Each testing box has an inlet and an outlet on both sides. The inlet is located away from the receiving device 90. Both the inlet and outlet have two sets of fixed plates arranged vertically opposite each other. A feeding roller is slidably installed on the fixed plate near the inlet, and an outlet roller is slidably installed on the fixed plate near the outlet. The feeding roller and the outlet roller are connected to the fixed plates by a return spring. The feeding roller and the outlet roller are pressed against the water spray pipe by the return spring.

[0023] The feed roller is hollow inside, and several heating plates are embedded in the inner wall of the feed roller. Two sets of reciprocating plates are slidably installed inside the feed roller, and the two sets of reciprocating plates form a sliding seal connection with the inner wall of the feed roller. The two sets of reciprocating plates are respectively connected to the telescopic rod of the transverse electric cylinder, which is installed on the feed roller. Several air inlets and several air outlets are arranged opposite each other on the feed roller located between the two sets of reciprocating plates. The air outlets are far away from the detection box, the air inlets are connected to the inside of the detection box through pipes, and the air outlets are directly opposite the water spray pipe. One-way valves are installed in both the air inlets and the air outlets. The diameter of the air outlets gradually decreases from both ends of the feed roller towards the middle.

[0024] Furthermore, longitudinal electric cylinders are installed on the upper and lower sides of the testing box. The telescopic rods of the longitudinal electric cylinders are inserted into the testing box and connected to a sealing plate. Limiting grooves are provided around the lower side of the sealing plate. A limiting frame is slidably and sealed in each limiting groove. A rubber plate is provided on one side of the limiting frame. Adjacent sets of limiting frames are connected by a shielding membrane. Another set of rubber plates is provided on one side of the shielding membrane. The other side of the shielding membrane is placed on the sealing plate. The shielding membrane is made of elastic material.

[0025] A pressure sensor is installed on the inner wall of the limiting frame. A first spring is connected between each limiting frame and the sealing plate. The first spring is located in the limiting groove and is electrically connected to the controller. A heating wire is installed on the inner wall of the detection box and is electrically connected to the controller.

[0026] Furthermore, the water spray pipe includes an inner layer, a reinforcing layer, and an outer layer arranged from the inside out. The inner layer is made of EPDM rubber or PTFE, the reinforcing layer is a single or double layer of 304 stainless steel, and the outer layer is made of EPDM rubber.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] 1. The active water cloud of the present invention comprises 30% steam and 70% metastable water droplets, with the particle size of the metastable water droplets being 0.1-10μm. The small-molecule active water cloud mist can cover the fire source, forming an isolation layer that blocks a certain amount of air. While isolating, the large-molecule water mist gradually settles, reducing the temperature of the fire source and providing a fire extinguishing effect. It has four optimal fire extinguishing effects: water cooling, nitrogen dilution, foam isolation, and chemical inhibitor fire suppression. This allows the active water cloud to quickly cool down, dilute oxygen, and settle smoke, achieving three-dimensional total flooding to extinguish various types of fires.

[0029] 2. This invention addresses the application of live water cloud. For different scenarios, this invention sets different live water cloud flow rates for spraying. In situations where water volume is limited, it ensures fire extinguishing effect while maximizing spraying time, especially indoors, providing a water mist isolation environment that isolates the air for a long time, allowing the fire source to be fully extinguished.

[0030] 3. The live water cloud fire spraying device of the present invention can be applied to fire trucks. By automatically adjusting the water injection rate and combustion rate of the burner through sensors and controllers, it can effectively generate live water cloud. Based on the high efficiency of the high-pressure pump in outputting live water cloud, it can stably output live water cloud for a long time to meet the actual needs of the rescue site.

[0031] 4. The live water cloud fire-fighting spray device of the present invention is equipped with a spray pipe detection module. Due to the high spray pressure of the live water cloud, the water pipe often leaks when used repeatedly, which affects the pressure effect of the live water cloud spray and makes it impossible to effectively cover the fire source. Therefore, the spray pipe is checked for leaks during each pipe retraction stage to ensure that the device can be put into operation immediately in the next fire-fighting operation. Attached Figure Description

[0032] Figure 1 This is a time series distribution diagram of active water cloud number concentration in Example 1 of the present invention;

[0033] Figure 2 This is a schematic diagram of the overall structure of the live water cloud fire-fighting spray device in Embodiment 2 of the present invention;

[0034] Figure 3 This is a schematic diagram of the overall structure of the fire truck in Embodiment 2 of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the storage device 90 in Embodiment 2 of the present invention;

[0036] Figure 5 This is a schematic diagram of the overall structure of the water pipe detection module in Embodiment 2 of the present invention;

[0037] Figure 6This is a schematic diagram of the internal constraint frame of the water pipe detection module in Embodiment 2 of the present invention;

[0038] Figure 7 This is a three-dimensional structural diagram of the internal constraint frame of the water pipe detection module in Embodiment 2 of the present invention;

[0039] Figure 8 This is a schematic diagram of the installation structure of the feed roller, reciprocating plate, and transverse electric cylinder in Embodiment 2 of the present invention.

[0040] Figure 9 This is a schematic diagram of the layered structure of the water spray pipe in Embodiment 2 of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.

[0042] Example 1:

[0043] This invention proposes a fire-fighting live water cloud, comprising 30% steam and 70% metastable water droplets, the metastable water droplets being a mixture of 0.1-10μm water droplets. When applied to an actual fire scene, the live water cloud continuously floats above the fire source, enveloping it and isolating it from the outside environment. During this continuous isolation, oxygen is gradually consumed, controlling the fire's spread. The water droplets gradually coalesce into larger water molecules, which then descend and extinguish the fire. Figure 1 As shown, experiments were conducted in a closed warehouse environment to study the changes in the number of active water clouds with different particle sizes over time. Data from approximately 1500 seconds exhibited ambiguity and was therefore manually removed to ensure the accuracy of subsequent analysis. The results showed that the main droplet size was concentrated between 0.1 and 1.3 micrometers, and this range accounted for the majority of the droplets. During the 4500-second experiment, it was observed that the number of small molecule droplets (0.1-0.3 micrometers) gradually increased over time. This is because after the active water cloud was ejected, the internal environment increased rapidly due to heat absorption and conduction in a short period, leading to a rapid increase in the number of droplets. The evaporation effect actually increases the number of small water droplets, while those with a longer suspension time are often small water droplets between 0.1 and 0.3 micrometers, forming an effective water mist isolation layer. Therefore, it can play a good role in isolating the fire source for a long time and consuming internal oxygen. Therefore, in order to ensure the isolation effect, the stable state water droplet size of the sprayed water should be 0.1-0.3 μm, and after 35 minutes after spraying, the 0.1-0.3 μm water droplets should account for at least 30% of the total active water cloud volume. As time goes on, the internal environment cools down, the water droplets gradually merge into larger water droplets, lose the suspension effect, and settle down to achieve the fire extinguishing effect.

[0044] When using live water cloud spraying, its application in firefighting, especially in indoor environments, requires both effective fire suppression and long-term fire isolation. Depending on the type of fire source, the applications are as follows:

[0045] In electrical fires, the flow rate of the live water cloud jet is 5-10 L / min.m. 3 Water mist is an ideal choice, as it is almost non-conductive and has a good cooling effect.

[0046] For liquid fires, such as oil or liquids, the jet flow rate of the live water cloud is 10-15 L / min. 3 The rapid evaporation of living water clouds cools and dilutes oxygen.

[0047] In gas fires, such as natural gas fires, the jet flow rate of the live water cloud is 8-12 L / min. 3 Living water clouds can effectively dilute gas concentrations.

[0048] For solid fires, such as those involving wood or other materials, the jet flow rate of the live water cloud is 10-20 L / min. 3 Completely isolate the source of fire by covering it.

[0049] Depending on the environment, the applications are as follows:

[0050] In outdoor environments, the flow rate of the live water cloud jet is 15-30 L / min.m. 3 Live water clouds are easily affected by wind, requiring increased flow rates.

[0051] In a well-ventilated environment, the jet flow rate of the live water cloud is 20-40 L / min.m. 3 Live water clouds are easily blown away, so the flow rate needs to be increased.

[0052] The active water cloud is suitable for extinguishing fires involving flammable materials that do not undergo chemical reactions with water. In a metastable state, it undergoes physicochemical changes different from ordinary water molecules, altering its oxidation-recovery potential, viscosity, and capacitance. The jet does not settle for extended periods (>40 minutes), remaining suspended and unobstructed by sediment. It does not fall horizontally or vertically, but even floats upwards along the horizontal plane, separating a large amount of heat and flammable gases. It effectively prevents heat radiation, allowing rescuers to approach the fire source while wearing only ordinary firefighting gear. It poses no harm to the surrounding environment, people, or animals. It saves 10 times more water than traditional firefighting methods. One liter of active water jet can fill 5 cubic meters of space per second. The jet is gentle on the skin, operates at temperatures below 42°C, and maintains normal atmospheric pressure, achieving rapid cooling, 100% smoke settling, high-efficiency fire extinguishing, and safety and environmental friendliness. It fundamentally solves the problem of water damage caused by the large amounts of water used in traditional firefighting processes.

[0053] Adding foam solution can create cloud-like suspended foam. The foam jet resembles a water jet in appearance, does not settle over a long period, and does not fall onto horizontal or vertical surfaces, instead floating upwards in the air. The more intense the combustion, the stronger the airflow drawn into the combustion zone by the active water or suspended foam. When the foam bubbles collapse, they release steam instead of air, forming a fire-extinguishing film on the burning surface. Its unique physical characteristics give suspended foam three fire-extinguishing properties: cooling the water-vapor mixture; isolating the burning material from oxygen to reduce the combustion rate; and diluting the oxygen content by evaporating water into steam. Most importantly, its long-term floating fills the space, forming foam only where the gas or surface temperature exceeds 100°C. In other words, foam only forms on flames or various burning surfaces, with steam inside the bubbles.

[0054] When the bubbles burst, the steam dilutes the air, reducing the oxygen content and thus slowing down the combustion process.

[0055] Example 2:

[0056] This invention proposes a live water cloud fire-fighting spray device for stable and long-term output of live water cloud, such as... Figure 2 As shown, the specific structure includes the following: a water storage tank 10, a high-pressure plunger pump 20, a burner 30, a controller 40, a pipeline connected to the water storage tank 10, the high-pressure plunger pump 20, the burner 30, and the pipeline for spraying water to the outside, an electrically controlled valve and a sensor installed in the above pipeline and connected to the controller 40, and a detection box for detecting whether there is a leak in the water spray pipe. The controller 40 controls the corresponding electrically controlled valve and the high-pressure plunger pump 20 to automatically adjust the water injection rate and combustion rate of the burner 30, so that the water at the outlet of the burner 30 reaches the preset working condition that can create a live water cloud.

[0057] The inlet of the high-pressure plunger pump 20 is connected to the water storage tank 10 via a booster pump 201, and the inlet of the burner 30 is connected to the outlet of the high-pressure plunger pump 20. In this embodiment, a water outlet control valve 101 is provided at the outlet of the water storage tank 10. The inlet of the high-pressure plunger pump 20 is connected to the water outlet control valve 101 via the booster pump 201. When the high-pressure plunger pump 20 is turned on and the water outlet control valve 101 is opened, water can be injected into the burner 30 through the high-pressure plunger pump 20, and the water flow can be heated by the burner in the burner 30.

[0058] In this embodiment, the burner 30 is also connected to an oil inlet pipe 301, on which an oil inlet electronic control valve 302 is installed. Starting the burner 30 and opening the oil inlet electronic control valve 302 allows fuel to be injected into the burner 30 and ignited for combustion, thereby heating the water flow. It is understood that the oil inlet pipe 301 can be connected to an external...

[0059] An external fuel tank is used to supply fuel to the burner 30. This external fuel tank can be the fuel tank on the fire truck or a separate fuel tank can be installed.

[0060] In this embodiment, the burner 30 is also connected to a water outlet pipe 303, which is connected to the water outlet of the burner 30 and is connected to a water spray pipe for spraying water to the outside to extinguish the fire.

[0061] In this embodiment, a pressure sensor 304 and a temperature sensor 305 are provided at the outlet of the burner 30 to detect the water temperature and pressure at the outlet of the burner 30, so as to ensure that it can reach the temperature and pressure required to create a live water cloud.

[0062] In this embodiment, the controller 40 is electrically connected to the high-pressure plunger pump 20, the burner 30, the pressure sensor 304, the temperature sensor 305, and the oil inlet electronic control valve 302. It controls the rotational speed of the high-pressure plunger pump 304 based on the pressure detected by the pressure sensor 304, and controls the opening of the oil inlet electronic control valve 302 based on the temperature detected by the temperature sensor 305, thereby adjusting the water temperature and pressure at the outlet of the burner 30. In this embodiment, the burner 30 is a diesel burner. By acquiring the value of the pressure sensor 304 at the diesel burner outlet, the controller automatically adjusts the power frequency of the high-pressure plunger pump 20 to control the pump speed, thereby adjusting the diesel burner outlet pressure to the target set value of 2MPa to 10MPa. By acquiring the value of the temperature sensor 305 at the diesel burner outlet, the controller automatically adjusts the valve opening of the oil inlet electronic control valve 302 to control the burner's combustion rate, thereby adjusting the diesel burner outlet temperature to the target set value of 160℃ to 260℃.

[0063] In this embodiment, a safety valve 306 is installed on the outlet pipe 303 and electrically connected to the controller 40. When the pressure of the outlet pipe 303 is greater than the preset pressure threshold, the controller 40 controls the safety valve 306 to open to release pressure and ensure the safety of the system.

[0064] In this embodiment, a water spray control valve 307 is installed on the water outlet pipe 303. When the water spray control valve 307 is opened, water is sprayed to the outside through the water outlet pipe 303. It is understood that multiple water nozzles can be installed on the water outlet pipe 303, and each nozzle can be connected to an external water spray device 100. Of course, all multiple nozzles can be used simultaneously, or one or more of them can be used. Therefore, a manual control valve 308 is installed at each nozzle. When a nozzle needs to be used, the manual control valve 308 of the corresponding nozzle is opened. When the water temperature and pressure at the outlet of the burner 30 reach the temperature and pressure conditions required to create a live water cloud, the manual control valve 307 is opened to spray water outward and form a live water cloud, thereby achieving rapid cooling, oxygen dilution, smoke sedimentation, and three-dimensional total flooding to extinguish various types of fires. In this embodiment, the external water spray device 100 can be a water gun, water cannon, or other equipment.

[0065] In this embodiment, the outlet pipe 303 is also used to connect to the water storage tank 10, and a return water control valve 309 is provided at the connection point to the water storage tank 10. When the spray water control valve 307 is closed and the return water control valve 309 is open, water flows along the outlet pipe 303 to the water storage tank 10 to achieve internal circulation. Before spraying water externally, the water can be preheated by opening the return water control valve 309 and turning on the high-pressure plunger pump 20 and the burner 30, so that the water temperature in the water storage tank 10 can reach between 70°C and 80°C. At this time, combustion is stopped. When it is necessary to start spraying water externally, the spray water control valve 307 is opened, and the high-pressure plunger pump 20 and the burner 30 start working. This can greatly reduce the time required to reach the temperature and pressure conditions required to create a live water cloud, and can greatly improve the fire extinguishing efficiency.

[0066] In this embodiment, a liquid level sensor 102 and a water tank temperature sensor 103 are also provided in the water storage tank 10. The liquid level sensor 102 is used to detect the liquid level in the water storage tank 10. When the liquid level in the water storage tank 10 is lower than the preset liquid level, an alarm is triggered. For example, when the liquid level in the water storage tank 10 is lower than 30%, an alarm is triggered to indicate that water needs to be added to the water storage tank 10 to ensure the safe operation of the system. The water tank temperature sensor 103 is used to detect the water temperature in the water storage tank 10. It is used to detect the water temperature in the tank when the water is preheated.

[0067] In this embodiment, the control system also includes an engine 50 and a generator 60, which are connected via a power take-off (PTO) system 70. When the engine 50 and generator 60 are not in a PTO connection state, and the water outlet control valve 101 and the water spray control valve 307 are closed, the high-pressure plunger pump 20 and the burner 30 cannot start to ensure system safety. Furthermore, in this state, the operating conditions of the Huoshuiyun fire truck, including temperature and pressure conditions, can be selected via the controller 40. In this embodiment, the engine 50 and generator 60 can be connected via a remote PTO button on the controller. The engine 50 transmits power to the generator 60 through the PTO, and the generator 60 converts mechanical energy into electrical energy, which is then supplied to the control system and other electrical components of the Huoshuiyun fire truck via the distribution cabinet.

[0068] In this embodiment, a flow meter 202, an inlet pressure sensor 203, and an inlet temperature sensor 204 may be installed at the inlet of the high-pressure plunger pump 20, and an outlet pressure sensor 204 may be installed at the outlet of the high-pressure plunger pump 20. The flow meter 202 is used to monitor the water flow rate of the system, the inlet pressure sensor 203 is used to monitor the inlet pressure of the high-pressure plunger pump, and the inlet temperature sensor 204 is used to monitor the inlet water temperature of the pump to ensure the safety of the system. The outlet pressure sensor 204 is used to monitor the burner inlet pressure. By adding the burner outlet pressure, the pressure loss of the heating system can be calculated to monitor the efficiency of the system.

[0069] In this embodiment, the control system can also set the ignition temperature, the flameout temperature, the ignition water supply pressure, and the flameout water supply pressure. When the outlet water temperature is lower than the set value, the burner ignites and combusts; when the outlet water temperature is lower than the set value, the burner ignites and combusts.

[0070] When the temperature exceeds the set value, the burner stops burning; and it can automatically track the outlet water temperature of the burner 30 according to the set temperature conditions in the operating conditions, thereby achieving automatic adjustment of the outlet water temperature; when the pressure is lower than the set pressure, the burner starts to burn water; when the pressure is higher than the set pressure, the burner stops burning and the water supply stops; and it can automatically track the outlet water pressure of the burner 30 according to the set pressure conditions in the operating conditions, thereby achieving automatic adjustment of the outlet water pressure.

[0071] The temperature setting can be set to any value between 160℃ and 260℃ at the burner outlet, and the pressure setting can be set to any value between 2MPa and 10MPa at the burner outlet, ensuring that the live water cloud fire truck can continuously and stably output live water. The live water cloud produced by the fire truck uses little water and has a long continuous working time; one liter of live water cloud jet can fill 5 cubic meters of space per second. Furthermore, the live water cloud ejected by the nozzle will not sink for a long time, floating freely in the air, resulting in extremely high fire extinguishing efficiency and energy saving and environmental protection. When the temperature and pressure reach the above conditions, the active water forms a mixture of steam and water droplets after being sprayed out. Insufficiently heated water (10... -4 —10 -9 It instantly transforms into a metastable state (within seconds), then explodes and boils to form a substance. Its composition consists of underheated steam (30%) and metastable water droplets (0.01-10.0 micrometers) with most droplets having a diameter of 0.1-5.0 micrometers. It possesses four optimal fire extinguishing effects: cooling with water, dilution with nitrogen, isolation with foam, and suppression with chemical inhibitors. It effectively weakens dispersed heat flow, floats and fills spaces for extended periods, effectively protects enclosed spaces from heat radiation, and provides maximum three-dimensional fire extinguishing efficiency. It prevents open flame combustion, settles and eliminates smoke, and lowers the temperature. It eliminates the need for rescue personnel to enter the building and can extinguish natural, underground, and engineering fires at heights or depths up to 350 meters and distances up to 2 kilometers, both on the surface and in three dimensions.

[0072] In this embodiment, a drain pipe 310 is also provided at the bottom of the burner 30. A drain electric control valve 311 is provided on the drain pipe 310 to drain the residual water or remaining sewage and dirt in the burner 30, so as to avoid the accumulation of sewage and dirt from affecting the safety of the burner 30, and at the same time ensure the subsequent heating of the burner 30.

[0073] In this embodiment, the control system also includes a control panel connected to the controller. The control panel includes a display screen for displaying and selecting the operating conditions of the control system and the operating parameters during the operation of the control system. For example, the upper part of the display screen can monitor chassis water temperature, chassis voltage, oil pressure, PTO positioning signal, engine speed, etc.; the middle part is for selecting the automatic operation mode area (i.e., pressure setting) and setting the combustion rate and water injection rate; the left side displays the water tank level and diesel tank level; the right side displays parameters such as output voltage value, water inlet pressure, and outlet temperature; further down, the monitored parameters include fan frequency, water tank temperature, water supply pressure, and fan pump group signal; and at the very bottom is the touch screen operation section; the far right of the control panel is the chassis emergency stop switch; the lower part of the control panel is equipped with a buzzer that will alarm when the water tank and diesel tank levels are low, system power switch, generator power switch, soft water treatment power switch, burner drain water, and pipeline drain water; the lower left of the panel is equipped with chassis start / stop button, generator start / stop button, outlet water pressure setting, burner start / stop, water pump return valve, injection valve, and cooling return water valve.

[0074] In this embodiment, the water spray pipe is housed by a receiving device 90 and passes through the water pipe detection module; as Figure 4 As shown, the storage device 90 includes two sets of supports 91, each with a rotating plate 92 rotatably mounted on it. Several clamping rollers 94 are connected between the two sets of rotating plates 92. Driven by a motor 93, the storage device 90 rotates, and the clamping rollers 94 wind and store the water pipe. The water pipe detection module includes multiple detection boxes arranged in a row, such as... Figure 5 As shown, each detection box 80 has a detection box 801 and a discharge port 802 on both sides. The detection box 801 is away from the two sets of brackets 91. The detection box 80 near the detection box 801 and the discharge port 802 is provided with two sets of fixing plates. The feeding pressure roller 81 is slidably installed on the fixing plate near the detection box 801, and the discharge pressure roller 82 is slidably installed on the fixing plate near the discharge port 802. The feeding pressure roller 81 and the discharge pressure roller 82 are respectively connected to the fixing plates by a reset spring (not shown in the figure). The feeding pressure roller 81 and the discharge pressure roller 82 are pressed against the water spray pipe by the reset spring.

[0075] like Figure 8As shown, the feed roller 81 is hollow inside, and several heating plates 821 are embedded in the inner wall of the feed roller 81. Each heating plate 821 has a metal plate and two semiconductors of different materials. One end of each semiconductor is connected to the metal plate. The two semiconductors on the heating plate 821 are connected to the control system via wires. The two semiconductors and the metal plate on the heating plate 821 form a Peltier effect heating end, which heats the air inside the feed roller 81. Two sets of reciprocating plates 83 are slidably installed inside the feed roller 81, and the two sets of reciprocating plates 83 form a sliding contact with the inner wall of the feed roller 81. The dynamic sealing connection is used. The two sets of reciprocating plates 83 are respectively connected to the telescopic rods of the transverse electric cylinder 84. The transverse electric cylinder 84 is installed on the feed roller 81. Several air inlets 822 and several air outlets 823 are arranged opposite each other on the feed roller 81 located between the two sets of reciprocating plates 83. The air outlets 823 are far away from the detection box 80. The air inlets 822 are connected to the inside of the detection box 80 through pipes. The several air outlets 823 are directly opposite the water spray pipe. One-way valves are installed in the several air inlets 822 and air outlets 823. The diameter of the several air outlets 823 gradually decreases from both ends of the feed roller 81 towards the middle.

[0076] like Figure 6 and Figure 7 As shown, longitudinal electric cylinders 85 are installed on the upper and lower sides of the detection box 80. The telescopic rods of the longitudinal electric cylinders 85 are inserted into the detection box 80 and connected to a sealing plate 86. Limiting grooves are provided around the lower side of the sealing plate 86, and a limiting frame 87 is slidably and sealingly connected in each limiting groove. A rubber plate is provided on one side of the opposite face of the upper and lower limiting frames 87. Adjacent sets of limiting frames 87 are connected by a shielding membrane. Another set of rubber plates is provided on one side of the shielding membrane, and the other side of the shielding membrane is placed on the sealing plate 86. The shielding membrane is made of an elastic material. A pressure sensor is installed on the inner wall of the limiting frame 87. Each set of limiting frames 87 and sealing plates 86 is connected to a first spring 88, which is located in the limiting groove and is electrically connected to the control system. A heating wire (not shown in the figure) is provided on the inner wall of the detection box 80 and is electrically connected to the control system. Each set of limiting frames 87 is provided with a cavity (not shown in the figure) containing a marking liquid. A spray hole is provided on the limiting frame 87 facing the cavity, and a one-way valve is installed in the spray hole and communicates with the cavity. The cavity and the middle of the sealing plate 86 are respectively connected to the outlet of a pressure pump (not shown in the figure) through pipes.

[0077] The working principle of the detection box 80 is as follows: After the fire is extinguished, the water spray pipe is retracted through the storage device 90. The water spray pipe continuously enters the detection box 80 in sections to detect whether there is any leakage. Before the water spray pipe enters the detection box 80, the encoder in the drive motor 93 feeds back the data to the control system. The control system controls the heating wire and the horizontal electric cylinder 84 in the detection box 80 to work. The heating wire raises the temperature inside the detection box 80 and heats and dries the water spray pipe inside the detection box 80. The horizontal electric cylinders 84 on both sides drive the reciprocating plates 83 on both sides to move relative to each other, making the chamber between the reciprocating plates 83 smaller. At the same time, the heating end heats the air in the chamber, and the air pressure between the reciprocating plates 83 on both sides increases. The one-way valve in the air blowing port 823 opens, and the air between the reciprocating plates 83 on both sides is sprayed onto the water spray pipe outside the detection box 80 through the air blowing port 823 to clean the external water spray pipe for subsequent detection and drying.

[0078] After the transverse electric cylinder 84 moves the reciprocating plate 83 to a set distance, the transverse electric cylinder 84 moves the reciprocating plate 83 in the opposite direction, making the chamber between the two reciprocating plates 83 larger and the air pressure between the two reciprocating plates 83 smaller. The one-way valve in the air blowing port 823 closes and the one-way valve in the air intake port 822 opens. The hot air in the detection box 80 enters the chamber between the two reciprocating plates 83 through the pipe and the air intake port 822, realizing the extraction of hot air to facilitate the next cleaning of the water spray pipe. At the same time, the hot air is sprayed on the water spray pipe, which can raise the temperature of the water spray pipe and achieve the purpose of preheating, so as to facilitate the subsequent drying of the water spray pipe, improve the drying efficiency, and reduce energy consumption.

[0079] When the water spray pipe, after surface cleaning, enters the test chamber 80, the drive motor 93 stops working. At this time, the water spray pipe is stationary. The upper longitudinal electric cylinder 85 drives the upper sealing plate 86 to move downward, and the lower longitudinal electric cylinder 85 drives the lower sealing plate 86 to move upward. The sealing plates 86 on both sides drive the limiting frames 87 on both sides to press against the surface of the water spray pipe. The limiting frames 87 and the rubber plate on the lower side of the shielding film are in close contact with the surface of the water spray pipe. At this time, a test chamber is formed between the surface of the water spray pipe, the limiting frames 87 and the shielding film. A sliding seal connection is formed between the limiting frames 87 and the limiting groove to facilitate the filling of the test chamber with air.

[0080] When the limiting frame 87 and the rubber plate (elastic material) on the underside of the shielding film are pressed against the water spray pipe, the longitudinal electric cylinder 85 feeds the displacement data back to the control system. The control system opens the solenoid valve in the pipe between the pressurizing pump and the sealing plate 86. The pressurizing pump pressurizes the outside air and delivers it to the detection chamber through the pipe. The pressure sensor in the limiting frame 87 monitors the pressure in the chamber in real time. When the pressure decreases, the control system determines that there is a leak on the surface of the water spray pipe in the detection chamber. When the pressure remains almost constant, the control system determines that there is no leak on the surface of the water spray pipe in the detection chamber.

[0081] When there is a leak in the water spray pipe, the pressurizing pump connects the detection chamber to the outside air through the pipeline and maintains a normal pressure. Then, the longitudinal electric cylinder 85 drives the limiting frame 87 to move upward a certain distance through the sealing plate 86, so that the spray hole is directly facing the leak location. At this time, the control system opens the solenoid valve in the pipeline connecting the pressurizing pump and the cavity and closes the solenoid valve in the pipeline between the pressurizing pump and the sealing plate 86. The pressurizing pump pressurizes the outside air and delivers it into the cavity, increasing the air pressure in the cavity. The pressurized air pushes the marking liquid in the cavity to be sprayed through the spray nozzle onto the leak location, marking the leak location so that the leak location can be repaired.

[0082] In this embodiment, the control system energizes the first spring 88 and adjusts the current flowing through it according to the required detection range. When energized, each turn of the first spring 88 generates a magnetic field that attracts each other. This magnetic field causes the first spring 88 to contract as a whole. The first spring 88 pulls the limiting frame 87 inwards. Simultaneously, the limiting frame 87 stretches the shielding membrane, forming a detection chamber on the surface of the shielding membrane, the limiting frame 87, and the water spray pipe. The size of the detection chamber increases due to the movement of the limiting frame 87, thus increasing the vulnerability detection range. Therefore, the greater the current flowing through the first spring 88, the more the first spring 88 contracts, the more the first spring 88 pulls the limiting frame 87, and the larger the vulnerability detection range.

[0083] To further facilitate understanding by those skilled in the art, the working principle of the spraying device of the present invention is as follows:

[0084] S1. Select the operating conditions of the Huoshuiyun fire truck through the controller 40. The operating conditions include the water pressure and temperature conditions at the outlet of the burner 30.

[0085] S2. Open the water outlet electric control valve 101 and the oil inlet electric control valve 302, and start the high-pressure plunger pump 20 and burner 30. The system starts to run.

[0086] S3. The pressure and temperature values ​​of the water at the outlet of the burner 30 are detected and obtained by the pressure sensor 304 and the temperature sensor 305.

[0087] S4. The controller 40 controls the speed of the high-pressure plunger pump 20 according to the pressure value detected by the pressure sensor 304 and the preset pressure conditions, so that the pressure value reaches the pressure conditions.

[0088] S5. The controller controls the opening of the oil inlet electronic control valve 302 according to the temperature value detected by the temperature sensor 305 and the preset temperature conditions, so that the temperature value reaches the temperature conditions.

[0089] S6. Open the manual control valve 308 to allow water to be sprayed out when the pressure and temperature conditions are met.

[0090] S7: After the fire is extinguished, the water hose is retracted through the storage device 90, and the water hose is leak-proof tested through the detection box 80.

[0091] In this embodiment, when the pressure value is less than the preset pressure condition, the speed of the high-pressure plunger pump 20 is increased; when the pressure value is greater than the preset pressure condition, the speed of the high-pressure plunger pump 20 is decreased; when the temperature value is less than the preset temperature condition, the opening of the oil inlet control valve 302 is increased; when the temperature value is greater than the preset temperature condition, the opening of the oil inlet control valve is decreased. That is, the controller 40 automatically adjusts the water injection rate (speed) of the high-pressure plunger pump 20 and the combustion rate (valve opening of the oil inlet control valve of the combustion system) of the burner 30 according to the pressure value detected by the pressure sensor 304 and the temperature value detected by the temperature sensor 305. Through correction and adjustment, the pressure and temperature of the outlet water of the combustion 40 reach the target set pressure and temperature conditions.

[0092] In this embodiment, the method further includes: before the system is running, opening the return water control valve 309, the oil inlet control valve 302, the high-pressure plunger pump 20 and the burner 30 to preheat the water so that the water temperature in the water storage tank 10 reaches between 70°C and 80°C.

[0093] In this embodiment, because the extinguishing medium water transported by the temperature-activated cloud fire truck is high-temperature and high-pressure, and current rubber hoses cannot transport high-temperature and high-pressure water for extended periods, and the hose connection method is not convenient enough, the temperature-activated water fire truck cannot safely, stably, and efficiently output temperature-activated water for fire extinguishing and rescue. Therefore, as Figure 3 As shown, the spraying device of the present invention can be centrally mounted on the fire truck 200.

[0094] like Figure 9 As shown, the hose 300 includes an inner layer 320, a reinforcing layer 321, and an outer layer 322 arranged from the inside out. The inner layer 320 is made of EPDM rubber or PTFE, the reinforcing layer 321 is a single or double layer of 304 stainless steel, and the outer layer 322 is made of EPDM rubber. The inner layer 320 has a diameter of 16mm, 19mm, or 25mm, and its maximum withstand water pressure is less than or equal to 10MPa and its maximum withstand temperature is less than or equal to 260℃. This allows the rubber hose to transport high-temperature, high-pressure water for extended periods, enabling temperature-activated water fire trucks to safely, stably, and efficiently output temperature-activated water for firefighting and rescue. Furthermore, the maximum laying length of the hose 300 is 2000m, and the bending radius of the hose 300 is less than or equal to 140mm, facilitating the transport of temperature-activated water to distant locations for long-distance firefighting without affecting the firefighting performance of the temperature-activated water during long-distance transport.

[0095] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the present invention. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and content disclosed in the present invention without departing from the scope of the present invention shall be deemed to have remained within the protection scope of the present invention.

Claims

1. A fire-fighting water cloud, characterized in that, The active water cloud comprises 30% steam and 70% metastable water droplets, the size of which is 0.1-10 μm. When the active water cloud is sprayed, the size of which is 0.1-0.3 μm, and 35 min after spraying, the 0.1-0.3 μm water droplets account for at least 30% of the total active water cloud volume.

2. The fire-fighting water cloud according to claim 1, characterized in that, The applications of the aforementioned live water cloud in firefighting after being sprayed using a fire sprinkler system include: In indoor environments, depending on the type of fire source, the applications are as follows: In electrical fires, the flow rate of the live water cloud jet is 5-10 L / min.m. 3 ; For liquid fires, the flow rate of the live water cloud jet is 10-15 L / min.m. 3 ; In gas fires, the flow rate of the live water cloud jet is 8-12 L / min. 3 ; For solid fires, the jet flow rate of the live water cloud is 10-20 L / min.m. 3 ; Depending on the environment, the applications are as follows: In outdoor environments, the flow rate of the live water cloud jet is 15-30 L / min.m. 3 ; In a well-ventilated environment, the jet flow rate of the live water cloud is 20-40 L / min.m. 3 .

3. The fire-fighting water cloud according to claim 2, characterized in that, The fire-fighting spray device includes a water storage tank, a high-pressure plunger pump, a burner, a water pipe detection module, a spray gun, and a controller; The inlet of the high-pressure plunger pump is connected to the water storage tank via a booster pump; the inlet of the burner is connected to the outlet of the high-pressure plunger pump; the outlet of the burner is connected to the spray pipe of the water spray gun via an outlet pipe; the spray pipe is housed by a receiving device and passes through the water pipe detection module; the controller is connected to the high-pressure plunger pump, the burner, the water pipe detection module, each electronic control valve, and sensor signals. The water pipe detection module is located between the water spray gun and the storage device; The water pipe testing module includes multiple testing boxes arranged in a row. Each testing box has an inlet and an outlet on both sides. The inlet is located away from the receiving device. Both the inlet and outlet have two sets of fixed plates arranged vertically opposite each other. A feeding roller is slidably mounted on the fixed plate near the inlet, and an outlet roller is slidably mounted on the fixed plate near the outlet. The feeding roller and the outlet roller are connected to the fixed plates by a return spring. The feeding roller and the outlet roller are pressed against the water spray pipe by the return spring. The feed roller is hollow inside, and several heating plates are embedded in the inner wall of the feed roller. Two sets of reciprocating plates are slidably installed inside the feed roller, and the two sets of reciprocating plates form a sliding seal connection with the inner wall of the feed roller. The two sets of reciprocating plates are respectively connected to the telescopic rod of the transverse electric cylinder. The transverse electric cylinder is installed on the feed roller. Several air inlets and several air outlets are arranged opposite each other on the feed roller located between the two sets of reciprocating plates. The air outlets are away from the detection box. The air inlets are connected to the inside of the detection box through a pipe. Several air outlets are directly opposite the water spray pipe. One-way valves are installed in both the air inlets and the air outlets. The diameter of the several air outlets gradually decreases from both ends of the feed roller towards the middle. The detection box is equipped with longitudinal electric cylinders on its upper and lower sides respectively. The telescopic rods of the longitudinal electric cylinders are inserted into the detection box and connected to a sealing plate. The sealing plate has limiting grooves around its lower side. Each limiting groove is slidably and sealingly connected to a limiting frame. A rubber plate is provided on one side of the limiting frame. Adjacent sets of limiting frames are connected by a shielding membrane. Another set of rubber plates is provided on one side of the shielding membrane. The other side of the shielding membrane is provided on the sealing plate. The shielding membrane is made of an elastic material. A pressure sensor is installed on the inner wall of the limiting frame. A first spring is connected between each group of limiting frames and the sealing plate. The first spring is located in the limiting groove and is electrically connected to the controller. A heating wire is provided on the inner wall of the detection box and is electrically connected to the controller.

4. The fire-fighting water cloud according to claim 3, characterized in that, The burner is also connected to an oil inlet pipe, which is equipped with an oil inlet electrically controlled valve; the burner's water outlet is equipped with a pressure sensor and a temperature sensor; the bottom of the burner is equipped with a drain pipe, which is equipped with a drain electrically controlled valve.

5. The fire-fighting water cloud according to claim 3, characterized in that, A safety valve is installed on the water outlet pipe and is electrically connected to the controller. When the pressure in the water outlet pipe is greater than a preset pressure threshold, the safety valve opens. A water spray control valve is installed on the water outlet pipe. When the water spray control valve is opened, water is sprayed to the outside through the water outlet pipe.

6. The fire-fighting water cloud according to claim 3, characterized in that, The outlet pipe is connected to the water storage tank and is equipped with a return water control valve. When the spray valve is closed and the return water control valve is open, water flows along the outlet pipe to the water storage tank. The water storage tank is equipped with a liquid level sensor and a water tank temperature sensor. The liquid level sensor is used to detect the liquid level in the water storage tank, and the water tank temperature sensor is used to detect the water temperature in the water storage tank.

7. The fire-fighting water cloud according to claim 3, characterized in that, The storage device (90) includes two sets of brackets, each set of brackets having a rotating plate rotatably mounted on it, and a number of clamping rollers connecting the two sets of rotating plates.

8. The fire-fighting water cloud according to claim 3, characterized in that, The water spray pipe includes an inner layer, a reinforcing layer, and an outer layer arranged from the inside out. The inner layer is made of EPDM rubber or polytetrafluoroethylene. The reinforcing layer is a single or double layer of 304 stainless steel. The outer layer is made of EPDM rubber.

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