A method for controlling a fire extinguishing device

Abstract

The present invention relates to a control method for a fire extinguishing device, comprising the following steps: control system startup initialization, control system self-checking, control system temperature self-checking, fire extinguishing mode control, and providing selection, switching and combined use of different fire extinguishing modes in combination with the scene of the fire; the fire extinguishing device performs shutdown control; the disadvantage of the single fire extinguishing mode of fire-fighting equipment can be effectively solved, and different fire extinguishing modes can be highly integrated into one. A fine mist water fire extinguishing mode, a chemical reagent fire extinguishing mode, a metastable active water fire extinguishing mode, and a combined fine mist water and chemical reagent fire extinguishing mode, as well as a metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is beneficial to improving the fire extinguishing efficiency and shortening the fire extinguishing time.

Description

Technical Field

[0001] The invention belongs to the technical field of fire extinguishing, and in particular relates to a control method of a fire extinguishing device used for fire extinguishing and emergency handling. Background Art

[0002] Among various disasters, fire occurs most frequently and is one of the main disasters that threaten personal safety and social development. When a fire occurs, by taking reasonable measures to deal with the fire, the spread of the fire can be controlled in time, thereby avoiding the occurrence of larger-scale fires and minimizing the losses caused by the fire. There are usually several ways to extinguish the fire.

[0003] The water mist fire extinguishing mode mainly uses water as the fire extinguishing medium, and uses a high-pressure water pump and a specially designed nozzle to disperse the water flow into fine droplets. The evaporation of the water mist causes efficient cooling and oxygen deficiency, which can achieve the effect of fire extinguishing. The application of water mist fire extinguishing technology is basically not limited by the fire scene, and can be used to deal with fires of solid, oil and gas fuels.

[0004] The chemical inhibitor fire extinguishing mode is a method of suppressing the fire by chemical means and ultimately achieving the purpose of extinguishing the fire. Its core principle is to use chemical inhibitors to react with free radicals generated during the combustion process, thereby interrupting the combustion chain reaction and preventing the spread of fire and the combustion process.

[0005] Metastable active water fire extinguishing mode, active water (also called temperature active water) is a steam-water droplet mixture, which is obtained by the instantaneous transformation of insufficiently heated water to boiling water (within 10^-9^ to 10^-4^ seconds). Due to high pressure, the water does not boil, and enters a metastable state and subsequent explosive boiling. Active water droplets are in a metastable state, and different physical and chemical properties will occur from ordinary water, such as changes in oxidation recovery potential, viscosity and dielectric constant. This makes active water have good smoke precipitation characteristics or enhance the melting process of gas, and overall has certain advantages in fire extinguishing efficiency and environmental protection.

[0006] However, the existing fire-fighting devices can only meet the needs of a single type of fire, and the fire-fighting mode provided by a single fire-fighting device has a limited scope of application, making it difficult to cope with complex fire scenes and unable to meet the actual requirements of efficient fire-fighting in a timely manner. At the same time, the existing technical improvements for fire-fighting devices are mainly focused on the mobility, installation convenience and use safety of fire-fighting equipment to improve the fire-fighting effect or gain fire-fighting time. There is a lack of fire-fighting devices and control systems that include multiple fire-fighting modes in one, and it is impossible to select, switch and use different fire-fighting modes. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a control method for a fire extinguishing device, which can effectively solve the drawback of a single fire extinguishing mode of fire-fighting equipment, and can highly integrate different fire extinguishing modes into one. According to the fire extinguishing scene, fine mist water fire extinguishing mode, chemical reagent fire extinguishing mode, metastable active water fire extinguishing mode, and combined fine mist water and chemical reagent fire extinguishing mode, metastable active water and chemical reagent fire extinguishing mode can be selected and switched, which is beneficial to improving fire extinguishing efficiency and shortening fire extinguishing time.

[0008] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0009] A control method for a fire extinguishing device comprises the following steps: a control system is started and initialized, and data of an electrical system and a liquid level detection unit are re-zeroed and corrected; the control system performs self-checking, and various prepared storage materials and corresponding states are re-checked, so as to obtain the real data of various indicators of the entire fire extinguishing device in the initial state of the fire extinguishing device when started; the control system performs temperature self-checking, and detects the water temperature in the current water storage tank. When the temperature does not meet the set temperature, a heater is started to heat the water in the water storage tank, and the temperature of the water in the water storage tank is heated to near the set temperature; a fire extinguishing mode is controlled, and the selection, switching and combined use of different fire extinguishing modes are provided in combination with the scene of the fire scene; the fire extinguishing device performs shutdown control; the disadvantage of a single fire extinguishing mode of fire-fighting equipment can be effectively solved, and different fire extinguishing modes can be highly integrated into one, and a fine mist water fire extinguishing mode, a chemical reagent fire extinguishing mode, a metastable active water fire extinguishing mode, and a combined fine mist water and chemical reagent fire extinguishing mode, and a metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is conducive to improving the fire extinguishing efficiency and shortening the fire extinguishing time.

[0010] Furthermore, the method also includes: judging whether the liquid level is normal. When the liquid level is within the safe value range, the liquid level is in a normal state and the next work process is allowed to proceed; when the liquid level is outside the safe value range, the operator will be reminded and the water replenishment process will be executed.

[0011] Further, the water replenishment process includes the following steps: replenishing water from a fire hydrant, connecting the fourth pipeline with the fire hydrant, and when the detection value of the liquid level sensor in the water storage tank is greater than or equal to a preset threshold, disconnecting the fourth pipeline from the fire hydrant to complete the water replenishment;

[0012] and / or,

[0013] The submersible pump replenishes water, and the fourth pipeline is connected to the submersible pump. When the detection value of the liquid level sensor in the water storage tank is greater than or equal to the preset threshold, the connection between the fourth pipeline and the submersible pump is disconnected to complete the water replenishment.

[0014] Furthermore, the method also includes: judging whether the temperature in the water tank meets the requirements; if the water temperature in the water tank meets the requirements, preheating is completed; if the water temperature in the water tank does not meet the requirements, the water in the water tank needs to be heated.

[0015] Further, it is characterized in that the method also includes selecting fire extinguishing mode one, and the fire extinguishing mode one includes the following steps: regulating the control valve, regulating the control valve on the first pipeline to achieve connectivity between the first pipeline and the water storage tank; turning on the target high-pressure pump, setting the high-pressure pump on the outlet end side of the first pipeline, and under the action of the high-pressure pump, atomizing the water in the pipeline of the first pipeline and spraying it out; and system operation.

[0016] Furthermore, the method also includes selecting fire extinguishing mode 2, and the fire extinguishing mode 2 includes the following steps: regulating the control valve, regulating the control valve on the first pipeline to achieve communication between the first pipeline and the water storage tank, and also regulating the control valve on the second pipeline connected to the storage tank to connect the storage tank with the first pipeline; adding a chemical inhibitor, regulating the control valve on the second pipeline to connect the second pipeline with the storage tank, and transporting the chemical inhibitor in the storage tank to the outlet end side of the first pipeline through the second pipeline to mix the chemical inhibitor with water in the first pipeline; turning on the target high-pressure pump, setting the high-pressure pump on the outlet end side of the first pipeline, and under the action of the high-pressure pump, atomizing the water mixed with the chemical inhibitor in the first pipeline and spraying it out; and system operation.

[0017] Furthermore, the method further includes selecting fire extinguishing mode three, and the fire extinguishing mode three includes the following steps:

[0018] Regulate the control valve, regulate the control valve on the third pipeline, and form a reflux channel through the third heater; regulate the pipeline pump, regulate the pipeline pump on the connecting pipeline of the third pipeline, connect the third pipeline with the water storage tank, and form a flowable pipeline channel; determine whether the temperature exceeds the standard, and conduct real-time detection of the internal temperature of the third pipeline through the temperature monitoring unit, and feedback to the control system based on the detection result; regulate the control valve according to the actual temperature, when the temperature detection unit monitors that the internal temperature of the third pipeline is greater than or equal to 100°C, the control system will open the eighth regulating valve and close the sixth regulating valve; the system is running.

[0019] Further, it is characterized in that the method also includes executing a shutdown instruction of fire extinguishing mode one, including the following steps: turning off the pump on the first pipeline, turning off the first pipeline pump on the first pipeline, and cutting off the pipeline between the first pipeline and the water storage tank; closing the control valve on the first pipeline, closing the first pipeline valve, and after the first pipeline valve, completely closing the first pipeline to achieve system shutdown.

[0020] Furthermore, the method also includes executing a shutdown instruction for fire extinguishing mode two, including the following steps: shutting down the pump on the second pipeline, shutting down the second pipeline pump on the second pipeline, and cutting off the pipeline between the second pipeline and the storage tank; closing the control valve on the second pipeline, closing the first valve and the second valve in the second pipeline valve group, achieving complete closure of the second pipeline, and achieving system shutdown.

[0021] Furthermore, the method also includes executing a shutdown instruction for fire extinguishing mode three, including the following steps: turning off the electromagnetic heating device and the third heater in the third pipeline; judging whether the temperature in the third pipeline is lower than 100°C, and the temperature detection unit on the third pipeline monitors the water temperature inside the pipeline of the third pipeline in real time and feeds back to the control system; regulating the control valve to start water circulation, opening the first pipeline valve, the fourth regulating valve, the fifth regulating valve, the sixth regulating valve, and closing the eighth regulating valve to form a reflux channel connected to the water storage tank; judging the difference in water temperature between the third heater and the water storage tank, and comparing the real-time temperature of the first temperature sensor arranged on the outlet side of the third heater with the third temperature sensor arranged in real time, until the water temperature detected by the first temperature sensor is lower than the detection temperature of the third temperature sensor, and then proceeding to the next process; closing the control valve on the third pipeline, closing the third pipeline pump and the third pipeline valve group, and then shutting down the system.

[0022] The control method of the fire extinguishing device provided in the above embodiment provides different water replenishment paths while ensuring the safe operation of the fire extinguishing device by adding a water replenishment mode to the self-inspection process of the liquid level system, enriches the water replenishment methods of the fire extinguishing device, and improves the applicable scenarios of the fire extinguishing device; by preheating monitoring of the water temperature of the water storage tank, it ensures that when switching and combining different fire extinguishing modes, the requirements of different water temperatures are met quickly and agilely, and the safety and reliability of the fire extinguishing device are greatly improved while shortening the startup preparation time, and the fire extinguishing efficiency is steadily improved while ensuring the fire extinguishing effect; the chemical inhibitor in the storage tank is injected into the first pipeline through the second pipeline, and the opening of the second pipeline regulating valve is adjusted according to the real-time flow in the second pipeline, so as to realize precise control of the proportion of the added chemical inhibitor; it can dynamically adjust The mixing ratio of the entire chemical inhibitor is always at the best component ratio for fire extinguishing effect to obtain the best fire extinguishing effect; through the control of the fire extinguishing mode, the fine mist water fire extinguishing mode, the chemical reagent fire extinguishing mode, the metastable active water fire extinguishing mode, and the combined fine mist water and chemical reagent fire extinguishing mode, the metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is beneficial to improving the fire extinguishing efficiency and shortening the fire extinguishing time; it can effectively solve the disadvantage of the single fire extinguishing mode of fire-fighting equipment, and can highly integrate different fire extinguishing modes into one. The fine mist water fire extinguishing mode, the chemical reagent fire extinguishing mode, the metastable active water fire extinguishing mode, and the combined fine mist water and chemical reagent fire extinguishing mode, the metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is beneficial to improving the fire extinguishing efficiency and shortening the fire extinguishing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the fire extinguishing device;

[0024] Figure 2 A flow chart of a method for controlling a fire extinguishing device according to an embodiment;

[0025] Figure 3 A system self-check flow chart applicable to a fire extinguishing device control method is shown as an embodiment;

[0026] Figure 4 The embodiment shows a self-check flow chart of a liquid level system applicable to a fire extinguishing device control method;

[0027] Figure 5 The embodiment shows a temperature self-check flow chart applicable to the fire extinguishing device control method;

[0028] Fig. 6A The following is a flow chart showing a fire extinguishing mode control method applicable to a fire extinguishing device control method according to an embodiment;

[0029] Figure 6BA fire extinguishing mode control flow chart applicable to a fire extinguishing device control method is shown as another embodiment;

[0030] Figure 6C A fire extinguishing mode control flow chart applicable to a fire extinguishing device control method is shown as another embodiment;

[0031] Figure 7 The shutdown control flow chart applicable to the fire extinguishing device control method is shown as an embodiment. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. In addition, if the embodiments of the present invention involve descriptions of "first, second", "S1, S2", "step one, step two", etc., then such descriptions are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features or indicating the execution order of the method, etc. Those skilled in the art can understand that anything that does not violate the gist of the invention under the technical concept of the invention should be included in the protection scope of the present invention.

[0034] like Figure 1As shown, a multifunctional fire extinguishing device according to some exemplary embodiments includes a water storage tank 100, a storage tank 200, a first pipeline 10, a second pipeline 20, and a third pipeline 30, wherein the inlet end side of the first pipeline 10 is connected to the water storage tank 100, and the outlet end side of the first pipeline 10 is externally connected to a spray device (not shown in the figure), forming a first passage that can be used for fire extinguishing; the inlet end side of the second pipeline 20 is connected to the storage tank 200, and the inlet end side of the second pipeline 20 is connected to the outlet end side of the first pipeline 10 in a disconnectable connection arrangement, forming a second passage that can be used for fire extinguishing; the inlet end side of the third pipeline 30 is connected to the inlet end side of the first pipeline 10 in a disconnectable connection arrangement, and the outlet end side of the third pipeline 30 is externally connected to the spray device (not shown in the figure) As shown), a third passage that can be used for fire extinguishing is formed; the outlet end side of the second pipeline 20 is connected to the outlet end side of the third pipeline 30 through a connecting pipe, which can be cut off, to form a mixing passage of the second passage and the third passage; thus, the first passage formed by the first pipeline connected to the water storage tank can provide a fire extinguishing mode with water as the medium, and the second pipeline connected to the storage tank at one end and the other end of the oppositely arranged second pipeline that can be cut off and connected to the first pipeline can be used to inject the fire extinguishing agent in the storage tank into the first pipeline as needed, and then form a new fire extinguishing agent mixed with water and fire extinguishing agents of different properties in the storage tank, or the fire extinguishing agent in the storage tank is ejected separately to form a separate fire extinguishing passage that can be used to operate the fire extinguishing agent in the storage tank separately. For example, chemical inhibitors. At the same time, through a third pipeline which is disconnected from the first pipeline at one end and connected to the water storage tank at the other end thereof, the water in the storage tank flowing through the first pipeline can be processed to achieve changes in the different physical forms of the water in the water storage tank, and then realize the fire extinguishing modes under different physical states, thereby realizing the fire extinguishing modes of water under different physical states, and the flexible selection of fire extinguishing modes of different fire extinguishing agents alone and / or after mixing with water to form a new fire extinguishing agent, which can effectively solve the drawback of the single fire extinguishing mode of the vehicle-mounted fire extinguishing device in the prior art, realize the flexible switching and integration of fire extinguishing modes, and can dynamically adjust the fire extinguishing operation parameters according to the actual needs of fire extinguishing, thereby ensuring the safety of the operator on the premise of improving the fire extinguishing efficiency.

[0035] In the implementation mode of the present application, Figures 2 to 7 As shown, the control method of the fire extinguishing device is now illustrated by way of example. The method is used to regulate the selection, switching and combined use of the fire extinguishing modes of the fire extinguishing device. In this process, from the perspective of equipment, the execution subject may be the control device in the fire extinguishing device provided by the present application; from the perspective of the program, the execution subject may correspondingly be the program mounted on the control device of the fire extinguishing device provided by the present application. The control method includes the following steps.

[0036] In step S100, the control system starts initialization.

[0037] Usually, when the fire extinguishing device is activated, the control system will re-zero the data of the electrical system and the liquid level detection unit.

[0038] In step S200, the control system performs a self-check.

[0039] After the system is started, the prepared storage materials and their corresponding states are re-tested to obtain the true data of various indicators of the entire fire extinguishing device in the initial state of the fire extinguishing device when started, so as to provide timely and necessary information and enhance the safety of the entire fire extinguishing device.

[0040] For example, when the water reserve in the water tank is insufficient, the system will obtain the data through the corresponding detection terminal, and the system will sound an alarm and prompt water replenishment.

[0041] In step S300, the control system performs a temperature self-check.

[0042] In actual applications, after the control system completes self-check and meets the corresponding start-up conditions, it will detect the water temperature in the current water tank. When the temperature does not meet the set temperature, the heater will be started to heat the water in the water tank and heat the water temperature in the water tank to near the set temperature.

[0043] Optionally, in order to achieve dynamic balance regulation of water temperature, PID control is adopted when the heater heats the water in the water storage tank.

[0044] Obviously, there is no specific restriction on the water temperature heating algorithm, as long as the water temperature in the water storage tank can be heated to a preset temperature.

[0045] In step S400, fire extinguishing mode control is performed.

[0046] In actual applications, combined with the fire scene scenario, different fire extinguishing modes are provided for selection, switching and combined use.

[0047] For example, the fine mist water fire extinguishing mode, chemical reagent fire extinguishing mode, metastable active water fire extinguishing mode, and the combined fine mist water and chemical reagent fire extinguishing mode and metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scenario.

[0048] In step S500, the fire extinguishing device performs shutdown control.

[0049] In practical applications, in order to ensure the safety of fire extinguishing equipment, there are specific requirements for the shutdown of corresponding equipment under the actual working conditions of different fire extinguishing modes. For example, when using fine mist shutdown and chemical inhibitor fire extinguishing mode, the pipeline pump will be shut down first.

[0050] To sum up, the control method of the fire extinguishing device provided in the embodiment of the present disclosure can effectively solve the disadvantage of the single fire extinguishing mode of fire-fighting equipment, and can highly integrate different fire extinguishing modes into one. It can select and switch the fine mist water fire extinguishing mode, chemical reagent fire extinguishing mode, metastable active water fire extinguishing mode, and the combined use of fine mist water and chemical reagent fire extinguishing mode, metastable active water and chemical reagent fire extinguishing mode according to the fire extinguishing scene, which is beneficial to improving the fire extinguishing efficiency and shortening the fire extinguishing time.

[0051] Figure 3 The following is a system self-check flow chart applicable to the fire extinguishing device control method, as shown in the embodiment. Figure 3 As shown, the self-checking process of the control system is applied to the fire extinguishing device control method, including the following steps.

[0052] In step S210 , the electrical system self-check is started.

[0053] In actual applications, after the system is powered on, each actuator will first be self-checked, and each actuator and sensor will perform self-checking actions. After the self-check is completed, the sensor will be automatically calibrated. When the sensor parameters are corrected, it means that the electrical system self-check is completed, and it is prompted that the control system is normal, allowing the next work process to proceed.

[0054] In step S220, the liquid level system self-check is started.

[0055] After the electrical system self-check is completed, the volume sensor installed inside the liquid storage tank is used to detect the liquid level, so as to judge the current liquid level in the water storage tank. For example, when the liquid level in the liquid storage tank is too low, an alarm can be issued.

[0056] In step S230, the self-check is completed and the system starts normally.

[0057] After passing the self-test of the electrical system and the liquid level system, the system will prompt that the control system will start normally.

[0058] Alternatively, if Figure 4 As shown, in step S220, after the electrical system self-check is completed, it also includes judging whether the liquid level is normal. When the liquid level is within the safe value range, the liquid level is normal and the next workflow is allowed; when the liquid level is outside the safe value range, the operator will be reminded and the water replenishment process will be executed.

[0059] Optionally, in the water replenishment mode, the following steps are included:

[0060] In step S221, the fire hydrant is replenished with water.

[0061] In actual application, the fire hydrant is selected for water replenishment, and the fourth pipeline 40 is connected to the fire hydrant 400. When the detection value of the liquid level sensor 45 in the water storage tank 100 is greater than or equal to the preset threshold, the connection between the fourth pipeline 40 and the fire hydrant 400 is disconnected to complete the water replenishment.

[0062] Specifically, after the fourth pipeline 40 is connected to the fire hydrant 400, the fourth pipeline regulating valve 42 is opened, and then the water in the fire hydrant 400 is introduced into the water storage tank 100. When the detection value detected by the liquid level sensor 45 is greater than or equal to the preset threshold, the fourth pipeline regulating valve 42 is closed to disconnect the connection with the fire hydrant 400, and then complete the water replenishment.

[0063] In step S222, the submersible pump replenishes water.

[0064] In actual application, a submersible pump is selected for water replenishment, and the fourth pipeline 40 is connected to the submersible pump 300. When the detection value of the liquid level sensor 45 in the water storage tank 100 is greater than or equal to the preset threshold, the connection between the fourth pipeline 40 and the submersible pump 300 is disconnected to complete the water replenishment.

[0065] In summary, by adding a water replenishment mode to the self-inspection process of the liquid level system, different water replenishment paths are provided while ensuring the safe operation of the fire extinguishing device, which enriches the water replenishment methods of the fire extinguishing device and improves the applicable scenarios of the fire extinguishing device.

[0066] Figure 5 The temperature self-check flow chart applicable to the fire extinguishing device control method is shown as an embodiment. In step S300, in the temperature self-check process, it includes: judging whether the temperature in the water storage tank meets the requirements. If the water temperature in the water storage tank meets the requirements, preheating is completed. If the water temperature in the water storage tank does not meet the requirements, the water in the water storage tank needs to be heated.

[0067] Specifically, the water temperature is detected by a third temperature sensor 343 arranged in the water tank 100. When the temperature detected by the third temperature sensor 343 is lower than a preset threshold value, the third pipeline 30 is connected to the water tank 100, the first pipeline pump 13 is turned off, the third pipeline pump 31 is started, and the water in the third pipeline 30 is heated under the action of the third heater 32, and then the water in the water tank 100 is mixed with the water flowing back through the third pipeline 30 until the preheating of the water tank 100 is completed.

[0068] Optionally, the water in the water tank 100 can be directly preheated by a heater disposed in the water tank 100 to improve the preheating efficiency. Preferably, a heater is disposed in the water tank 100, and / or the water in the third pipeline 30 is heated by a third heater 32 to improve the preheating efficiency, which are both optional implementations.

[0069] In summary, by preheating and monitoring the water temperature of the water storage tank, we can ensure that when switching and combining different fire extinguishing modes, the requirements of different water temperatures can be met quickly and agilely. While shortening the startup preparation time, the safety and reliability of the fire extinguishing device are greatly improved. While ensuring the fire extinguishing effect, the fire extinguishing efficiency is steadily improved.

[0070] When the control system enters the working mode after self-checking and stabilization, there are three optional fire extinguishing modes for selection and operation, which can be flexibly switched and used in combination according to the actual needs of fire extinguishing. Fig. 6A , Figure 6B and Figure 6C As shown, in step S400, the process of performing fire extinguishing mode control includes the following steps.

[0071] In step S410, fire extinguishing mode 1 is selected.

[0072] In actual application, fire extinguishing mode 1 adopts fine mist water mode fire extinguishing mode.

[0073] In step S411, the control valve is regulated.

[0074] In practical applications, the control valve on the first pipeline 10 is adjusted to achieve communication between the first pipeline 10 and the water storage tank 100 .

[0075] In step S412, the target high-pressure pump is turned on.

[0076] In practical applications, a high-pressure pump is disposed at the outlet end side of the first pipeline 10 , and under the action of the high-pressure pump, water in the first pipeline 10 is atomized and then sprayed out.

[0077] In step S413, the system runs.

[0078] In actual application, the fine mist water mode fire extinguishing mode can be smoothly operated. Specifically, by opening the first pipeline valve 11 and the first pipeline valve group 14, the inlet end side of the first pipeline 10 is connected with the water storage tank 100, and then the water in the water storage tank 100 passes through the first pipeline valve 1 and the second pipeline valve group 14, and is sprayed out through the high-pressure pump on the outlet end side of the first pipeline 10.

[0079] In step S420, fire extinguishing mode 2 is selected.

[0080] In actual application, fire extinguishing mode 2 adopts a fire extinguishing mode of fine mist water mixed with chemical inhibitors.

[0081] In step S421, the control valve is regulated.

[0082] In practical applications, the control valve on the first pipeline 10 is regulated to connect the first pipeline 10 with the water storage tank 100, and the control valve on the second pipeline 20 connected to the storage tank 200 is also regulated to connect the storage tank 200 with the first pipeline 10.

[0083] In step S422, a chemical inhibitor is added.

[0084] In practical applications, the control valve on the second pipeline 20 is adjusted to connect the second pipeline 20 with the storage tank 200, and the chemical inhibitor in the storage tank 200 is transported to the outlet side of the first pipeline 10 through the second pipeline 20 to mix the chemical inhibitor with the water in the first pipeline 10.

[0085] In step S423, the target high-pressure pump is turned on.

[0086] In practical applications, a high-pressure pump is disposed at the outlet end of the first pipeline 10 , and under the action of the high-pressure pump, the water mixed with the chemical inhibitor in the first pipeline 10 is atomized and sprayed out.

[0087] In step S424, the system runs.

[0088] In actual application, the fire extinguishing mode of fine mist water mixed with chemical inhibitor can be operated smoothly. Specifically, by opening the first pipeline valve 11 and the first pipeline valve group 14, the inlet end side of the first pipeline 10 is connected to the water storage tank 100. At the same time, by adjusting the second pipeline valve group 22 and the second pipeline regulating valve 23, the second pipeline pump 21 is started to inject the chemical inhibitor in the storage tank 200 into the outlet end side of the first pipeline 10, and then spray it out through the high-pressure pump on the outlet end side of the first pipeline 10.

[0089] Optionally, the flow rate of the chemical inhibitor passing through the second pipeline 20 is detected in real time by the flow meter 24, and the opening of the second pipeline regulating valve 23 is regulated by the control algorithm to achieve accurate control of the proportion of the added chemical inhibitor. Preferably, the control system regulates the opening of the second pipeline regulating valve 23 by a PID algorithm.

[0090] In summary, the chemical inhibitor in the storage tank is injected into the first pipeline through the second pipeline, and the opening of the second pipeline regulating valve is adjusted according to the real-time flow in the second pipeline, so as to achieve precise control of the proportion of added chemical inhibitor; the mixing ratio of the chemical inhibitor can be dynamically adjusted to always be in the best component ratio for fire extinguishing effect, so as to obtain the best fire extinguishing effect.

[0091] In step S430, fire extinguishing mode three is selected.

[0092] In practical applications, fire extinguishing mode three adopts the fire extinguishing mode of metastable active water fire extinguishing.

[0093] In step S431, the control valve is regulated.

[0094] In practical applications, the control valve on the third pipeline 30 is regulated to form a reflux channel passing through the third heater 32 .

[0095] In step S433, the pipeline pump is regulated.

[0096] In practical applications, the pipeline pump on the connecting pipeline of the third pipeline 30 is regulated to connect the third pipeline 30 with the water storage tank 100 to form a flowable pipeline channel.

[0097] Specifically, by turning on the third pipeline pump 31 , the water being managed in the third pipeline 30 communicating with the water storage tank 100 is introduced into the third heater 32 for heating.

[0098] In step S434, it is determined whether the temperature exceeds the limit.

[0099] In practical applications, the temperature inside the third pipeline 30 is detected in real time by the temperature monitoring unit 34, and the control system is fed back according to the detection result.

[0100] In step S435, the control valve is adjusted according to the actual temperature.

[0101] In actual application, when the temperature detection unit 34 monitors that the internal temperature of the third pipeline 30 is greater than or equal to 100°C, the control system will open the eighth regulating valve 336 and close the sixth regulating valve 334; thus, the water in the water storage tank 100 enters the third heater 32 through the fourth regulating valve 332 under the action of the third pipeline pump 31, and after heating, the temperature is greater than or equal to 100°C. Under the control of the one-way valve 35, the water enters the outlet end of the third pipeline 30 after passing through the eighth regulating valve 336, and is then ejected out under the action of the high-pressure pump.

[0102] In some specific implementations, step S436 is also included to determine whether the pipeline pressure exceeds the warning pressure value: when the pipeline pressure exceeds the warning pressure value, the water circulation is turned on; when the management pressure is below the warning pressure value, the system operates normally.

[0103] In actual applications, the first pipeline sensor 15 in the first pipeline 10 monitors the internal pressure of the pipeline in real time and feeds back to the control system. When the pressure detected by the first pipeline sensor 15 exceeds the warning pressure value, the sixth regulating valve 334 is controlled to open. At this time, the water heated by the third heater 32 is diverted through the sixth regulating valve 334 and flows back to the water storage tank 100. At this time, the water circulation is turned on; at the same time, the heating power output of the third heater 32 is reduced to control the speed of rising of the circulating water temperature in the third pipeline 30.

[0104] Optionally, the amount of water in the inner pipe of the third pipeline 30 is large, and after being heated by the third heater 32 , the water temperature rises slowly, and the algorithm is used to regulate the opening of the fifth regulating valve 333 .

[0105] Optionally, when the fifth regulating valve 333 is fully opened, but the temperature of the internal pipe of the third pipeline 30 exceeds the standard after being heated by the third heater 32, the seventh regulating valve 335 is opened to increase the water circulation channel. When the temperature of the internal pipe of the third pipeline 30 drops too fast, the seventh regulating valve 335 is closed.

[0106] In step S437, the system runs.

[0107] In actual application, when the third pipeline 30 meets the preset relevant conditions, the system operation will continue.

[0108] In addition, in actual applications, the second pipeline valve group 22 in the second pipeline 20 connected to the storage tank 200 can also be regulated to connect the first pipeline 10 connected to the storage tank 200 to the outlet side of the third pipeline 30, and then the chemical inhibitor in the storage tank 200 is injected into the third pipeline 30 for mixing, thereby achieving a fire extinguishing mode in which metastable active water is mixed with the chemical inhibitor.

[0109] Specifically, by regulating the third valve 223 to open, the chemical inhibitor in the storage tank 200 is transported to the outlet side of the third pipeline 30 through the second pipeline 20, so that the chemical inhibitor is mixed with the water in the third pipeline 30 and then sprayed out under the action of the high-pressure pump.

[0110] In summary, through the control of the fire extinguishing mode, the fine mist water fire extinguishing mode, the chemical reagent fire extinguishing mode, the metastable active water fire extinguishing mode, and the combined use of the fine mist water and chemical reagent fire extinguishing mode and the metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scenario, which is beneficial to improve the fire extinguishing efficiency and shorten the fire extinguishing time.

[0111] Figure 7 The shutdown control flow chart applicable to the fire extinguishing device control method is shown as an embodiment. Figure 7As shown, when the fire extinguishing device is completed and shutdown control is performed, the shutdown command will control the system shutdown according to the fire extinguishing mode selected according to different fire extinguishing needs, which specifically includes the following steps.

[0112] In step S510, executing the shutdown instruction of fire extinguishing mode 1 includes the following steps:

[0113] In step S511 , the pump on the first pipeline 10 is turned off.

[0114] In actual application, the first pipeline pump 13 on the first pipeline 10 is turned off to cut off the pipeline between the first pipeline 10 and the water storage tank 100 .

[0115] In step S512, the control valve on the first pipeline 10 is closed.

[0116] In practical applications, after closing the first pipeline valve 11 and the first pipeline valve 141, the first pipeline 10 is completely closed to shut down the system.

[0117] In step S520, executing the shutdown instruction of the fire extinguishing mode 2 includes the following steps:

[0118] In step S521 , the pump on the second pipeline 20 is turned off.

[0119] In actual application, the second pipeline pump 21 on the second pipeline 20 is turned off to cut off the pipeline between the second pipeline 20 and the storage tank 200 .

[0120] In step S522 , the control valve on the second pipeline 20 is closed.

[0121] In practical applications, the second pipeline valve group 22 and the second pipeline regulating valve 23 are closed to completely close the second pipeline 20 to achieve system shutdown. Specifically, the first valve 221 and the second valve 222 in the second pipeline valve group 22 are closed to completely close the second pipeline 20.

[0122] In step S530, executing the shutdown instruction of the fire extinguishing mode 3 includes the following steps:

[0123] In step S531, the electromagnetic heating device is turned off.

[0124] In actual application, the third heater 32 in the third pipeline 30 is turned off.

[0125] In step S532, it is determined whether the temperature in the third pipeline 30 is lower than 100°C.

[0126] In actual applications, the temperature detection unit 34 on the third pipeline 30 monitors the water temperature inside the third pipeline 30 in real time and feeds back to the control system.

[0127] In step S533, the control valve is regulated to start water circulation.

[0128] In actual application, the first pipeline valve 11, the fourth regulating valve 332, the fifth regulating valve 333, and the sixth regulating valve 334 are opened, and the eighth regulating valve 336 is closed to form a reflux channel connected to the water storage tank 100; specifically, water from the water storage tank 100 flows back to the water storage tank 100 after passing through the first pipeline valve 11, the fourth regulating valve 332, the fifth regulating valve 333 and the sixth regulating valve 334.

[0129] In step S534, the difference in water temperature between the third heater 32 and the water storage tank 100 is determined.

[0130] In actual applications, the real-time temperature of the first temperature sensor 341 arranged at the outlet end of the third heater 32 is compared in real time with the third temperature sensor 343 connected to the water storage tank 100, and the next process is carried out until the water temperature detected by the first temperature sensor 341 is lower than the detection temperature of the third temperature sensor 343.

[0131] In step S535 , the control valve on the third pipeline 30 is closed.

[0132] In practical applications, the system is shut down after the third pipeline pump 31 and the third pipeline valve group 33 are turned off.

[0133] In summary, after receiving the shutdown command, the operation process under different fire extinguishing modes can be provided, and the various components involved in different fire extinguishing modes can be fully managed and controlled in an orderly manner. Especially when different fire extinguishing modes are used in combination, the shutdown can be carried out in an orderly manner based on the characteristics of each fire extinguishing mode, thereby extending the service life of the fire extinguishing device.

[0134] The control method of the fire extinguishing device provided in the above embodiment of the present application has at least the following characteristics:

[0135] The control method of the fire extinguishing device provided in the embodiment of the present application provides different water replenishment paths while ensuring the safe operation of the fire extinguishing device by adding a water replenishment mode to the self-inspection process of the liquid level system, enriches the water replenishment methods of the fire extinguishing device, and improves the applicable scenarios of the fire extinguishing device; by preheating monitoring of the water temperature of the water storage tank, it ensures that when switching and combining different fire extinguishing modes, the requirements of different water temperatures are met quickly and agilely, and the safety and reliability of the fire extinguishing device are greatly improved while shortening the startup preparation time, and the fire extinguishing efficiency is steadily improved while ensuring the fire extinguishing effect; the chemical inhibitor in the storage tank is injected into the first pipeline through the second pipeline, and the opening of the second pipeline regulating valve is adjusted according to the real-time flow in the second pipeline, so as to realize precise control of the proportion of the added chemical inhibitor; it can dynamically Adjust the mixing ratio of chemical inhibitors to always keep the component ratio at the best fire extinguishing effect to obtain the best fire extinguishing effect; through the control of fire extinguishing mode, fine mist water fire extinguishing mode, chemical reagent fire extinguishing mode, metastable active water fire extinguishing mode, and combined fine mist water and chemical reagent fire extinguishing mode, metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is beneficial to improving fire extinguishing efficiency and shortening fire extinguishing time; it can effectively solve the disadvantage of single fire extinguishing mode of fire-fighting equipment, and can highly integrate different fire extinguishing modes into one. Fine mist water fire extinguishing mode, chemical reagent fire extinguishing mode, metastable active water fire extinguishing mode, and combined fine mist water and chemical reagent fire extinguishing mode, metastable active water and chemical reagent fire extinguishing mode can be selected and switched according to the fire extinguishing scene, which is beneficial to improving fire extinguishing efficiency and shortening fire extinguishing time.

[0136] The above description is only a specific implementation mode of the present invention. The technical features of the above-mentioned embodiments can be arbitrarily combined. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0137] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for controlling a fire extinguishing device, characterized in that: The following steps are involved: The control system starts initialization and re-zeroes and calibrates the data of the electrical system and liquid level detection unit; The control system performs self-inspection and re-inspects the prepared stored materials and their corresponding states to obtain the true data of various indicators of the entire fire extinguishing device in the initial state of the fire extinguishing device when it is started; The control system performs temperature self-checking and detects the water temperature in the current water storage tank. When the temperature does not meet the set temperature, the heater will be started to heat the water in the water storage tank to near the set temperature. Carry out fire extinguishing mode control, and provide selection, switching and combined use of different fire extinguishing modes based on the fire scene; The fire extinguishing device performs shutdown control.

2. The control method according to claim 1, characterized in that: The method further comprises: The liquid level is judged to be normal. When the liquid level is within the safe value range, it is normal and the next work process is allowed. When the liquid level is outside the safe value range, the operator will be reminded and the water replenishment process will be executed.

3. The control method according to claim 2, characterized in that: The water replenishment process comprises the following steps: Replenishing water from the fire hydrant by connecting the fourth pipeline (40) to the fire hydrant (400); when the detection value of the liquid level sensor (45) in the water storage tank (100) is greater than or equal to a preset threshold, disconnecting the fourth pipeline (40) from the fire hydrant (400), thereby completing the water replenishment; and / or, The submersible pump replenishes water by connecting the fourth pipeline (40) to the submersible pump (300). When the detection value of the liquid level sensor (45) in the water storage tank (100) is greater than or equal to a preset threshold value, the connection between the fourth pipeline (40) and the submersible pump (300) is disconnected to complete the water replenishment.

4. The control method according to claim 1, characterized in that: The method further comprises: The temperature in the water tank is judged to see whether it meets the requirements. If the water temperature in the water tank meets the requirements, the preheating is completed. If the water temperature in the water tank does not meet the requirements, the water in the water tank needs to be heated.

5. The control method according to claim 1, characterized in that: The method further includes selecting a fire extinguishing mode 1, wherein the fire extinguishing mode 1 includes the following steps: Regulating the control valve, regulating the control valve on the first pipeline (10), and achieving communication between the first pipeline (10) and the water storage tank (100); Turning on the target high-pressure pump, arranging the high-pressure pump at the outlet end side of the first pipeline (10), and under the action of the high-pressure pump, atomizing the water in the first pipeline (10) and spraying it out; The system is running.

6. The control method according to claim 1, characterized in that: The method further includes selecting a second fire extinguishing mode, wherein the second fire extinguishing mode includes the following steps: Regulating the control valve, regulating the control valve on the first pipeline (10) to achieve communication between the first pipeline (10) and the water storage tank (100), and also regulating the control valve on the second pipeline (20) in communication with the storage tank (200) to achieve communication between the storage tank (200) and the first pipeline (10); Adding a chemical inhibitor, adjusting a control valve on the second pipeline (20), connecting the second pipeline (20) with the storage tank (200), transporting the chemical inhibitor in the storage tank (200) to the outlet side of the first pipeline (10) through the second pipeline (20), and mixing the chemical inhibitor with water in the first pipeline (10); Turning on the target high-pressure pump, arranging the high-pressure pump at the outlet end side of the first pipeline (10), and under the action of the high-pressure pump, atomizing the water mixed with the chemical inhibitor in the pipeline of the first pipeline (10) and spraying it out; The system is running.

7. The control method according to claim 1, characterized in that: The method further includes selecting a fire extinguishing mode three, wherein the fire extinguishing mode three includes the following steps: regulating the control valve, regulating the control valve on the third pipeline (30), and forming a reflux channel passing through the third heater (32); Regulating a pipeline pump, regulating a pipeline pump on a connecting pipeline of the third pipeline (30), connecting the third pipeline (30) with the water storage tank (100), and forming a flowable pipeline channel; Determine whether the temperature exceeds the standard, perform real-time detection of the internal temperature of the third pipeline (30) through a temperature monitoring unit (34), and provide feedback to the control system based on the detection result; The control valve is regulated according to the actual temperature. When the temperature detection unit (34) detects that the internal temperature of the third pipeline (30) is greater than or equal to 100° C., the control system will open the eighth regulating valve (336) and close the sixth regulating valve (334); The system is running.

8. The control method according to claim 1, characterized in that: The method further includes executing a shutdown instruction of fire extinguishing mode 1, comprising the following steps: Turning off the pump on the first pipeline (10), turning off the first pipeline pump (13) on the first pipeline (10), and cutting off the pipeline between the first pipeline (10) and the water storage tank (100); After closing the control valve on the first pipeline (10), closing the first pipeline valve (11) and the first pipeline valve (141), the first pipeline (10) is completely closed to shut down the system.

9. The control method according to claim 1, characterized in that: The method further includes executing a shutdown instruction of the fire extinguishing mode 2, comprising the following steps: Turning off the pump on the second pipeline (20), turning off the second pipeline pump (21) on the second pipeline (20), and cutting off the pipeline between the second pipeline (20) and the storage tank (200); The control valve on the second pipeline (20) is closed, and the first valve (221) and the second valve (222) in the second pipeline valve group (22) are closed to completely close the second pipeline (20) and shut down the system.

10. The control method according to claim 1, characterized in that: The method further includes executing a shutdown instruction of fire extinguishing mode 3, comprising the following steps: Turning off the electromagnetic heating device and the third heater (32) in the third pipeline (30); Determining whether the temperature in the third pipeline (30) is lower than 100° C., the temperature detection unit (34) on the third pipeline (30) monitors the water temperature inside the pipeline of the third pipeline (30) in real time and feeds back to the control system; Regulating the control valve to start water circulation, opening the first pipeline valve (11), the fourth regulating valve (332), the fifth regulating valve (333), the sixth regulating valve (334), and closing the eighth regulating valve (336), thereby forming a reflux channel connected to the water storage tank (100); Determining the difference in water temperature between the third heater (32) and the water storage tank (100), performing real-time comparison through the real-time temperature of a first temperature sensor (341) arranged at the outlet end of the third heater (32) and a third temperature sensor (343) arranged in communication with the water storage tank (100), until the water temperature detected by the first temperature sensor (341) is lower than the temperature detected by the third temperature sensor (343), and then proceeding to the next process; The system is shut down by closing the control valve on the third pipeline (30), closing the third pipeline pump (31) and the third pipeline valve group (33).

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