Y-shaped gas fire extinguishing equipment and fire extinguishing system thereof

Abstract

The Y-shaped gas fire extinguishing equipment comprises a fire extinguishing assembly, and the fire extinguishing assembly comprises a steel cylinder, a tee joint, a first connecting pipe, a first elbow, a second connecting pipe, a valve connector, a container valve, a signal feedback device, a second elbow, a third connecting pipe, a third elbow, a fourth connecting pipe and a nozzle. The container valves are added on the basis of a traditional one-bottle-one-valve mode, and the combination distribution principle is utilized, so that efficient protection of two protection areas is achieved, and the problems that existing box transformer substation fire extinguishing equipment is large in occupied space and high in cost are effectively solved; the fire extinguishing system integrates components such as a fire detector, a fire controller and a driving device, has an electric automatic driving mode and an electric manual driving mode, and can flexibly start fire extinguishing operation according to actual conditions; while the fire extinguishing efficiency is improved, the cost is remarkably reduced, the space is saved, a more reliable and economical fire extinguishing solution is provided for places such as a box transformer substation, and wide application prospects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of gas fire extinguishing equipment, in particular to a Y-type gas fire extinguishing equipment and a fire extinguishing system thereof. Background Art

[0002] In the operation structure of the power system, the safe and stable operation of power facilities is of great significance to ensure the normal order of social production and life. Among them, the box transformer, as a key node for power transmission and distribution, concentrates a large number of electrical equipment and lines inside, which inevitably have the risk of causing fire during operation. Once a fire occurs, if it cannot be put out in time and effectively, it will not only cause serious damage to the box transformer itself, causing direct economic losses, but also very likely to cause power supply interruption, which will bring immeasurable indirect losses to industrial production, commercial activities and residents' lives in the surrounding areas, and may even threaten the safety of people's lives. Therefore, in the fire safety guarantee system of power facilities such as box transformers, fire extinguishing equipment, as the core equipment for preventing and responding to fire accidents, its reasonable selection and scientific and effective application undoubtedly play a vital role. It is directly related to the prevention and control effect of box transformer fire accidents and the overall safety and reliability of the power system.

[0003] At present, the fire extinguishing equipment in domestic box-type transformers mainly adopts the following two methods: first, two cabinet-type gas fire extinguishing equipment are used to protect two protection areas of the same size respectively. This method not only occupies more internal space of the box-type transformer, but also has a high cost to purchase two devices; second, a separate storage room is built outside the box-type transformer to place the pipeline gas fire extinguishing equipment, and the fire extinguishing agent is transported to the protection area through the pipeline. This method requires many accessories such as manifolds, selection valves, liquid one-way valves, etc., which not only increases the cost, but also has additional requirements for the external space. For this reason, a Y-type gas fire extinguishing equipment and a fire extinguishing system thereof are proposed. Summary of the invention

[0004] The object of the present invention is to provide a Y-type gas fire extinguishing device and a fire extinguishing system thereof to solve one of the problems raised in the above background technology.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a Y-type gas fire extinguishing device, including a fire extinguishing assembly, wherein the fire extinguishing assembly includes a steel cylinder, a tee, a first connecting pipe, a first elbow, a second connecting pipe, a valve interface, a container valve, a signal feedback device, a second elbow, a third connecting pipe, a third elbow, a fourth connecting pipe, a flexible joint, a fifth connecting pipe, a fourth elbow, a seamless steel pipe and a nozzle; A tee is connected at the center of the top of the cylinder, and both sides of the tee are connected to the first elbow through the first connecting pipe, the tops of the two first elbows are connected to the valve interface through the second connecting pipe, the inner walls of the two valve interfaces are installed with container valves, the outlets of the two container valves are connected to the second elbow through a signal feedback device, the tops of the two second elbows are connected to the third elbow through the third connecting pipe, the ends of the two third elbows that are away from each other are connected to the flexible joint through the fourth connecting pipe, the ends of the two flexible joints that are away from each other are connected to the fourth elbow through the fifth connecting pipe, the tops of the two fourth elbows are connected to seamless steel pipes, and the tops of the two seamless steel pipes are installed with nozzles.

[0006] As a further preferred embodiment of the present technical solution: an electromagnetically driven valve is disposed on the top of each of the two container valves.

[0007] As a further preferred embodiment of the present technical solution: a pressure gauge is installed on one side of the middle portion of the outer side walls of the two container valves that are close to each other.

[0008] As a further preferred embodiment of the technical solution: the seamless steel pipe is made of a high temperature resistant and corrosion resistant alloy material, and the steel cylinder stores heptafluoropropane fire extinguishing agent.

[0009] As a further preferred embodiment of the present technical solution: the signal feedback device is a pressure sensor or an electromagnetic induction switch, which is used to feedback the working state of the electromagnetic drive valve.

[0010] To solve the above technical problems, another technical solution adopted in the present application is: a Y-type gas fire extinguishing system, including a Y-type gas fire extinguishing equipment, and also including a fire detector, a fire controller, a driving device, a power module, an audible and visual alarm device and an intelligent fire monitoring algorithm module, wherein the fire detector is used to transmit the fire signal to the fire controller, the fire controller is used to receive the fire signal transmitted by the fire detector and control the driving device according to the fire signal, the driving device is used to turn on the Y-type gas fire extinguishing equipment for fire extinguishing, the intelligent fire monitoring algorithm module is used to analyze and process the data collected by the fire detector, the power module is used to power the Y-type gas fire extinguishing system, and the audible and visual alarm device is used to drive the speaker to emit an alarm sound through a built-in audio amplifier, and at the same time control the indicator light to flash, reminding people in the protection area to evacuate in time.

[0011] As a further preferred embodiment of the present technical solution: the fire detector comprises a smoke detector and a temperature detector, and when the smoke detector and the temperature detector simultaneously send a fire signal to the fire controller, the fire controller starts a fire extinguishing procedure.

[0012] As a further preferred embodiment of the present technical solution: the driving device comprises mechanical and electrical devices for opening the container valve and the electromagnetic driven valve, and the driving device is used to execute the instructions of the fire controller.

[0013] As a further preferred embodiment of the present technical solution: the fire controller has an automatic control function and a manual control function, the manual control function starts the fire extinguishing system through a manual control button, and when the manual control button starts the fire extinguishing system, the fire detector signal judgment and the delay link under the automatic control function are skipped.

[0014] As a further preferred embodiment of the present technical solution: the fire controller also has a fault self-detection and alarm function for monitoring system faults and issuing alarms.

[0015] Advantages of the present invention: 1. The present invention realizes efficient protection of two protection zones by adding a container valve to the traditional one-bottle-one-valve system and utilizing the principle of combined distribution, effectively solving the problem of large space occupation and high cost of existing box-type fire extinguishing equipment; 2. The fire extinguishing system of the present invention integrates fire detectors, fire controllers, drive devices and other components, and has two driving modes: electrical automatic and electrical manual, which can flexibly start the fire extinguishing operation according to actual conditions; 3. While improving the fire extinguishing efficiency, the present invention significantly reduces the cost and saves space, providing a more reliable and economical fire extinguishing solution for places such as box transformers, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a Y-type gas fire extinguishing device of the present invention; Figure 2 It is a schematic diagram of the structure of the steel cylinder and the container valve of the present invention; Figure 3 The figure is a schematic diagram of the functional modules of a Y-type gas fire extinguishing system of the present invention.

[0018] In the figure: 1. fire extinguishing assembly; 11. steel cylinder; 12. tee; 13. first connecting pipe; 14. first elbow; 15. second connecting pipe; 16. valve interface; 17. container valve; 18. signal feedback device; 19. second elbow; 20. third connecting pipe; 21. third elbow; 22. fourth connecting pipe; 23. flexible joint; 24. fifth connecting pipe; 25. fourth elbow; 26. seamless steel pipe; 27. nozzle; 28. electromagnetic drive valve; 29. ​​pressure gauge. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1 Figure 1 Schematic diagram of a Y-type gas fire extinguishing device according to an embodiment of the present invention. Figure 1-Figure 2 As shown: a Y-type gas fire extinguishing equipment, including a fire extinguishing assembly 1, the fire extinguishing assembly 1 includes a steel cylinder 11, a tee 12, a first connecting pipe 13, a first elbow 14, a second connecting pipe 15, a valve interface 16, a container valve 17, a signal feedback device 18, a second elbow 19, a third connecting pipe 20, a third elbow 21, a fourth connecting pipe 22, a flexible joint 23, a fifth connecting pipe 24, a fourth elbow 25, a seamless steel pipe 26 and a nozzle 27; A tee 12 is connected at the center of the top of the cylinder 11, and both sides of the tee 12 are connected to a first elbow 14 through a first connecting pipe 13, and the tops of the two first elbows 14 are connected to a valve interface 16 through a second connecting pipe 15, and the inner side walls of the two valve interfaces 16 are installed with container valves 17, and the outlets of the two container valves 17 are connected to a second elbow 19 through a signal feedback device 18, and the tops of the two second elbows 19 are connected to a third elbow 21 through a third connecting pipe 20, and the ends of the two third elbows 21 that are far away are connected to a flexible joint 23 through a fourth connecting pipe 22, and the ends of the two flexible joints 23 that are far away are connected to a fourth elbow 25 through a fifth connecting pipe 24, and the tops of the two fourth elbows 25 are connected to a seamless steel pipe 26, and the tops of the two seamless steel pipes 26 are installed with a nozzle 27; Specifically: First, select a high-strength steel cylinder 11 that meets national standards, and its design pressure should meet the storage requirements of heptafluoropropane fire extinguishing agent. The volume of the steel cylinder 11 is determined according to the actual protection area size and fire extinguishing needs. For example, for a small box-type transformer protection area, a 50L volume steel cylinder 11 can be selected; then, weld a tee 12 at the top center of the steel cylinder 11 to ensure that there is no leakage at the welding point, and the welding process must comply with relevant specifications; then, take two first connecting pipes 13, and weld or thread the two sides of the tee 12 to one end of the two first connecting pipes 13 respectively to ensure that the connection is firm and the sealing is good; connect the first elbow 14 to the other ends of the two first connecting pipes 13 respectively, and the connection method can be It is connected by flange or welding to ensure that the elbow direction is correct and the connection is tight; take two second connecting pipes 15, connect one end of each to the top of the two first elbows 14 respectively, and connect the other end to the valve interface 16. The material of the valve interface 16 should match the connecting pipe, and a sealing gasket can be used to ensure sealing during the connection process; install a container valve 17 on the inner wall of the two valve interfaces 16. During installation, use professional tools to ensure that the container valve 17 is firmly installed and concentric with the valve interface 16. The container valve 17 should have good sealing and corrosion resistance, and its operating pressure and flow should meet the design requirements of the fire extinguishing system; connect the second elbow 19 to the outlet of the two container valves 17 through the signal feedback device 18 respectively, and the signal feedback If the feedback device 18 is a pressure sensor, it should be ensured that its installation position can accurately measure the outlet pressure of the container valve 17, and the connection line with the controller should be well shielded to prevent electromagnetic interference; take two third connecting pipes 20, connect one end of each to the top of the two second elbows 19 respectively, and the other end to the third elbow 21. During the connection process, attention should be paid to the direction of the pipeline to ensure that it meets the design requirements; take two fourth connecting pipes 22, connect one end of each to the ends away from the two third elbows 21 respectively, and the other end to the flexible joint 23. The installation of the flexible joint 23 should be convenient for subsequent maintenance operations. For example, a rotatable flexible joint 23 can be used; take two fifth connecting pipes 24, separate one end of each The two fourth elbows 25 are connected to one end away from the two flexible joints 23, and the other end is connected to the fourth elbow 25. When connecting, ensure that the inside of the pipeline is clean and free of impurities; the tops of the two fourth elbows 25 are connected to the seamless steel pipe 26, and the material of the seamless steel pipe 26 is a high-temperature resistant and corrosion-resistant alloy material, such as 304 stainless steel. The connection method can adopt high-quality welding methods such as argon arc welding to ensure the strength and sealing of the weld; a nozzle 27 is installed on the top of the two seamless steel pipes 26. The selection of the nozzle 27 should be determined according to the shape of the protection area and the fire extinguishing requirements. For example, for a narrow and long protection area, a nozzle 27 with a larger spray angle can be selected. The connection between the nozzle 27 and the seamless steel pipe 26 can be threaded and sealed with a sealant.

[0021] In this embodiment, specifically: an electromagnetically driven valve 28 is provided on the top of each of the two container valves 17, wherein the connection between the electromagnetically driven valve 28 and the container valve 17 should ensure tightness and reliable operation, and the selection of the electromagnetically driven valve 28 should be determined according to the system working pressure and control requirements, and its opening and closing time should meet the response time requirements of the fire extinguishing system.

[0022] In this embodiment, specifically: a pressure gauge 29 is installed on one side close to the middle of the outer wall of the two container valves 17, wherein the range of the pressure gauge 29 should cover the pressure range in the cylinder 11, and a dedicated joint is used during installation to ensure a tight connection without leakage.

[0023] In this embodiment, specifically: the seamless steel pipe 26 is made of a high-temperature resistant and corrosion-resistant alloy material, and the steel cylinder 11 stores heptafluoropropane fire extinguishing agent inside, wherein the seamless steel pipe 26 is made of a high-temperature resistant and corrosion-resistant alloy material, such as 304 stainless steel, and the connection method can adopt high-quality welding methods such as argon arc welding to ensure the strength and sealing of the weld; wherein, the heptafluoropropane fire extinguishing agent is stored in liquid form and released in gaseous form, thereby requiring a large amount of heat absorption to quickly reduce the temperature of the protected area and the surrounding of the flame, the heptafluoropropane fire extinguishing agent is composed of large molecules, and the molecular breakage requires a large amount of heat absorption, and the injection of the heptafluoropropane fire extinguishing agent can reduce the concentration of oxygen and hinder the combustion rate.

[0024] In this embodiment, specifically: the signal feedback device 18 is a pressure sensor or an electromagnetic induction switch, which is used to feedback the working state of the electromagnetic drive valve 28; When the pressure sensor is used as a signal feedback device 18, the pressure sensor is installed on the pipe between the outlet of the container valve 17 and the second elbow 19, and is tightly fixed by threaded connection or flange connection. For example, a special sensor installation interface is set on the pipeline, and its thread specification matches the interface of the pressure sensor. Sealing tape or sealing gasket is used to ensure the sealing of the connection to prevent the leakage of fire extinguishing agent from affecting the accuracy of pressure measurement; the pressure sensor is connected to the fire controller through a shielded cable, and the cable wiring should be away from strong electromagnetic interference sources, such as large motors, transformers and other equipment. Aviation plugs or terminal blocks are used at both ends of the cable for connection to ensure a firm connection and easy disassembly and maintenance; The specific working principle and signal processing flow of the pressure sensor are as follows: When the electromagnetically driven valve 28 is opened, the fire extinguishing agent begins to flow, and the pressure in the pipeline changes. The pressure sensor monitors the pressure in the pipeline in real time and converts the pressure signal into an electrical signal (usually an analog voltage signal, such as 0-5V or 4-20mA). After receiving the electrical signal from the pressure sensor, the fire controller first filters the signal to remove the noise interference in the signal, and then determines the working state of the electromagnetically driven valve 28 according to the preset pressure threshold. For example, if the pressure rises rapidly in a short period of time and exceeds the set opening pressure threshold, and fluctuates within a certain range, it is determined that the electromagnetically driven valve 28 is normally opened; if the pressure signal is abnormal (such as too high or too low pressure, too large fluctuations, etc.), it is determined that the electromagnetically driven valve 28 is working abnormally and triggers the corresponding fault alarm signal; the fire controller can also monitor the flow of the fire extinguishing agent in real time according to the signal of the pressure sensor (calculated by the relationship between pressure and flow, and the corresponding calculation model needs to be set in the controller in advance). If it is found that the flow of the fire extinguishing agent is insufficient, it may be caused by pipeline blockage or other faults, and an alarm signal will also be issued to remind the maintenance personnel to check and repair.

[0025] When the electromagnetic induction switch is used as the signal feedback device 18, the electromagnetic induction switch is installed near the electromagnetic driven valve 28 and fixed in a suitable position by a bracket or a fixing clamp to ensure that its sensing area can accurately cover the key moving parts (such as the valve core or valve stem) of the electromagnetic driven valve 28; the electromagnetic induction switch works on the principle of electromagnetic induction. When the electromagnetic driven valve 28 is opened or closed, the moving parts inside it will generate a magnetic field change. The electromagnetic induction switch can sense this magnetic field change and generate a corresponding switch signal (such as a normally open or normally closed signal); The electromagnetic induction switch signal transmission and control logic process is as follows: The switch signal generated by the electromagnetic induction switch is transmitted to the fire controller through an ordinary cable. The cable connection should be reliable to prevent signal loss due to looseness or poor contact. After receiving the signal from the electromagnetic induction switch, the fire controller determines the working position of the electromagnetic drive valve 28 according to the state of the signal. For example, when the normally open signal is changed to the normally closed signal, the electromagnetic drive valve 28 is determined to be changed from the open state to the closed state; conversely, when the normally closed signal is changed to the normally open signal, the electromagnetic drive valve 28 is determined to be changed from the closed state to the open state. Similar to the pressure sensor, the fire controller determines whether the electromagnetic drive valve 28 is working normally according to the signal of the electromagnetic induction switch. If the expected signal change is not received within the specified time, or an abnormal signal combination is received (such as receiving multiple switch signals at the same time), the electromagnetic drive valve 28 is determined to be working abnormally, and the corresponding alarm and fault handling procedures are triggered. At the same time, the fire controller can record the number of actions and action time of the electromagnetic drive valve 28 according to the signal of the electromagnetic induction switch for equipment maintenance management and performance analysis. For example, if it is found that the number of actions of the electromagnetic drive valve 28 is too frequent or the action time is too long, it may indicate that the valve needs maintenance or replacement of parts.

[0026] This embodiment also includes testing the sealing performance and function of each component of the Y-type gas fire extinguishing equipment, as follows: After the Y-type gas fire extinguishing equipment is assembled, fill the cylinder 11 with nitrogen at a certain pressure (such as 2.5MPa), and use a professional leak detection instrument (such as a helium mass spectrometer leak detector) to detect various connection parts of the equipment, including pipe connections, valve interfaces 16, container valves 17, and flexible joints 23. Ensure that the pressure drop does not exceed the specified value (such as 0.05MPa) within the specified pressure holding time (such as 24 hours); Test the opening and closing functions of the electromagnetically driven valve 28, send out a simulated driving signal through the fire controller, check whether the electromagnetically driven valve 28 can be opened and closed quickly and accurately, and observe whether the signal feedback device 18 can correctly feedback the working status of the electromagnetically driven valve 28; Check the reading accuracy of the pressure gauge 29, calibrate the pressure gauge 29 using a standard pressure source, and ensure that the reading error of the pressure gauge 29 is within the allowable range (such as ±3%); The spray performance of nozzle 27 is tested. Under simulated fire extinguishing conditions, the equipment is started to observe whether the spray pattern, spray angle and spray distance of nozzle 27 meet the design requirements. For example, for nozzle 27 with a designed spray distance of 5m, the actual measured spray distance should be within the range of 4.5-5.5m.

[0027] Embodiment 2 Figure 3 Schematic diagram of the functional modules of a Y-type gas fire extinguishing system according to an embodiment of the present application. Figure 3As shown, a Y-type gas fire extinguishing system includes a Y-type gas fire extinguishing device, and also includes a fire detector, a fire controller, a driving device, a power module, a sound and light alarm device and an intelligent fire monitoring algorithm module, the fire detector is used to transmit a fire signal to the fire controller, the fire controller is used to receive the fire signal transmitted by the fire detector and control the driving device according to the fire signal, the driving device is used to turn on the Y-type gas fire extinguishing device to extinguish the fire, the intelligent fire monitoring algorithm module is used to analyze and process the data collected by the fire detector, the power module is used to power the Y-type gas fire extinguishing system, and the sound and light alarm device is used to drive the speaker to sound an alarm through a built-in audio amplifier, and control the indicator light to flash, so as to remind people in the protection area to evacuate in time; Specifically: Install smoke detectors and temperature detectors in the protection area of ​​the box-type transformer. Smoke detectors should be installed on the ceiling or at a higher position to avoid being blocked by obstacles. The installation spacing should be determined according to the detection range of the detector. For example, for a smoke detector with a detection radius of 7.5m, the installation spacing should not exceed 15m. Temperature detectors can be installed near equipment or in areas where heat is easily generated. The installation height should be determined according to the equipment layout and thermal air flow distribution in the protection area. Generally, they are installed at a height of 1.5-2m from the ground. Connect smoke detectors and temperature detectors to the fire controller through shielded cables. Cable wiring should avoid parallel laying with strong power lines to prevent electromagnetic interference. The cable connection should be firm and reliable. Good wiring treatment should be carried out at both the detector and controller ends, such as using crimping terminals for connection, and good insulation protection should be provided. Choose a dry, well-ventilated and easy-to-operate location to install the fire controller, such as in the control room or operation room of the box-type transformer. Fix the fire controller on the mounting bracket to ensure that it is firmly installed and connect the external power supply. The power supply should be dual-circuit (main power supply and backup power supply). The main power supply is powered by AC power, and the backup power supply is powered by AC power. An uninterruptible power supply (UPS) can be used as the power supply. When the city power is cut off, the backup power supply should be able to automatically switch and maintain the normal operation of the fire controller for at least 2 hours; connect the cable from the fire detector to the corresponding input port of the fire controller, and connect the control cable of the drive device to the output port of the fire controller. Ensure that the wiring is correct during the connection process, and mark each cable to facilitate subsequent maintenance and troubleshooting; install the drive device in a position close to the Y-type gas fire extinguishing equipment to facilitate mechanical and electrical connection with the container valve 17 and the electromagnetic drive valve 28; the mechanical connection part of the drive device should be accurately connected with the operating mechanism of the container valve 17 and the electromagnetic drive valve 28 to ensure that the valve can be reliably opened after receiving the command from the fire controller. For example, for an electric push rod drive device, the stroke and thrust of its push rod should meet the requirements for valve opening, and the connection between the push rod and the valve operating mechanism should adopt an adjustable connection method to facilitate installation and debugging; the electrical connection part should correctly connect the power line and control signal line of the drive device to the fire controller. The connection line should use flame-retardant cables and be grounded to prevent static electricity and electromagnetic interference.

[0028] In this embodiment, specifically: the fire detector includes a smoke detector and a temperature detector. When the smoke detector and the temperature detector simultaneously send a fire signal to the fire controller, the fire controller starts the fire extinguishing program. Among them, the smoke detector adopts a photoelectric or ion detection principle. When a fire occurs in the protection area and smoke is generated, the smoke enters the detector, causing the light inside the detector to scatter or change the ion current of the ionization chamber, thereby triggering the detector to alarm; the temperature detector adopts a temperature sensitive element such as a thermistor or a thermocouple to monitor the ambient temperature. When the temperature in the protection area rises to reach the action temperature set by the detector (such as 60°C-80°C, the appropriate action temperature is selected according to different places and equipment requirements), the circuit inside the detector triggers an alarm signal.

[0029] In this embodiment, specifically: the driving device includes mechanical and electrical devices for opening the container valve 17 and the electromagnetic driven valve 28, and the driving device is used to execute the instructions of the fire controller. For the electromagnetic driven valve 28, the mechanical part of the driving device usually acts on the valve indirectly through electromagnetic force. The driving device contains an electromagnet. When the fire controller issues an opening instruction, the electromagnet is energized to generate a magnetic field to attract the armature to move. The armature is connected to the valve core or valve stem of the electromagnetic driven valve 28 through a mechanical structure (such as a lever, a connecting rod, etc.). The movement of the armature drives the valve core or valve stem to move, thereby realizing the opening of the electromagnetic driven valve 28; when the driving device receives the instruction issued by the fire controller to open the container valve 17 or the electromagnetic driven valve 28, the electrical device first verifies and analyzes the instruction. If the instruction is correct and conforms to the preset logic, the electrical device will supply power to the electromagnet according to a predetermined timing to make the electromagnet move, and then open the corresponding valve through the mechanical device. During the valve opening process, the electrical device can also monitor the current and voltage changes of the electromagnet, and judge whether the opening state of the valve is normal through these parameters.

[0030] In this embodiment, specifically: the fire controller has an automatic control function and a manual control function. The manual control function starts the fire extinguishing system through a manual control button, and when the manual control button starts the fire extinguishing system, the fire detector signal judgment and the delay link under the automatic control function are skipped; The specific implementation of the automatic control function is as follows: The fire controller collects signals from smoke detectors and heat detectors in real time through a dedicated communication interface (such as RS-485 bus). When receiving the signal, it immediately analyzes and processes the signal to determine the type of signal (normal monitoring signal or fire alarm signal), signal strength and signal source (which detector it comes from). In order to improve the accuracy of signal processing, the fire controller uses advanced algorithms to filter and analyze the collected signals. For example, digital filtering technology is used to remove noise interference in the signal. At the same time, intelligent algorithms are used to determine the change trend of the signal and distinguish between real fire signals and environmental interference signals. Only when the smoke detector and the heat detector simultaneously send out signals that meet the preset logic (such as signal strength exceeding the set threshold and lasting for a certain period of time) The fire controller will determine that a fire has occurred only when a fire alarm signal is received (time); after confirming the occurrence of a fire, firstly, the sound and light alarm device is activated, and the built-in audio amplifier drives the speaker to emit a loud alarm sound (such as an alarm sound with a frequency of 1000Hz-1500Hz and a volume of not less than 85dB), and at the same time controls the indicator light to flash (such as a red LED light flashing at a frequency of 1Hz) to remind people in the protection area to evacuate in time; then, the fire controller performs the main and backup power supply switching operation, automatically detects the power supply status of the main power supply (mains power), and immediately and seamlessly switches to the backup power supply (such as an uninterruptible power supply UPS) once a main power supply failure or voltage abnormality is found, to ensure that the system can continue to operate stably during a fire. During the switching process, the control The controller monitors the power supply status in real time and displays the power supply switching information on the display screen, so that the operator can understand the power supply status of the system; then, the fire controller enters the delay stage, and the preset delay time is 30 seconds (it can be adjusted within a certain range according to actual needs, such as 10-60 seconds). During this period, the personnel in the protection area have enough time to evacuate to the safe area. During the delay process, the fire controller informs the personnel of the fire situation and the remaining evacuation time through the display screen and voice prompts (such as voice broadcast every 5 seconds "Fire has occurred, please evacuate as soon as possible"). At the same time, the controller continues to monitor the detector signal. If the fire signal disappears during the delay period (it may be a false alarm or the fire has been extinguished), the fire extinguishing program is canceled. After the delay ends, the fire controller sends a signal to the drive device. A start command is issued to drive the container valve 17 and the electromagnetic drive valve 28 of the Y-type gas fire extinguishing equipment to open, and the fire extinguishing agent is released to extinguish the fire. During the fire extinguishing process, the fire controller monitors the operating status of the system in real time, including the spraying pressure and flow rate of the fire extinguishing agent, the working status of the container valve 17 and the electromagnetic drive valve 28, and other information. The remaining amount of the fire extinguishing agent and the spraying effect are calculated through the data collected by the pressure sensor and the flow sensor to ensure the effectiveness of the fire extinguishing process. If an abnormal situation is found in the system (such as the fire extinguishing agent pressure is too low, the valve is not opened or closed normally, etc.), the fire controller immediately sends a fault alarm signal and displays detailed fault information on the display screen, and takes corresponding emergency measures (such as trying to start the valve again or switching to the backup fire extinguishing equipment, etc.).

[0031] The specific implementation of the manual control function is as follows: An obvious manual control button is set on the fire controller panel. The button adopts a red eye-catching logo and has a design to prevent misoperation (such as pressing a certain time or pressing multiple buttons at the same time to trigger the operation). The manual control button is divided into an "emergency start" button and an "emergency stop" button. When the operator finds a fire and confirms that the fire extinguishing system needs to be started, the "emergency start" button is pressed. After receiving the manual start signal, the fire controller immediately skips the fire detector signal judgment link and the delay link under the automatic control function, directly sends a start instruction to the drive device, quickly opens the container valve 17 and the electromagnetic drive valve 28, and releases the fire extinguishing agent to extinguish the fire. In this way, the fire extinguishing system can be started as soon as possible in an emergency to reduce fire losses. During the fire extinguishing process, if it is found that the fire situation has changed (such as the fire has been extinguished or the fire extinguishing operation needs to be stopped for other emergency treatment), the operator can press the "emergency stop" button. After receiving the stop signal, the fire controller immediately stops sending the drive signal to the drive device, closes the valve that is spraying the fire extinguishing agent, and stops the fire extinguishing operation. At the same time, the time and reason for stopping the operation are recorded on the display screen for subsequent query and analysis.

[0032] In this embodiment, specifically: the fire controller also has a fault self-check and alarm function, which is used to monitor system faults and issue an alarm. The fire controller has a built-in fault self-check program, which automatically checks various parts of the system regularly (such as every 1 hour), and can also start the self-check program at any time through manual operation. The self-check content includes the operating status of key components and systems such as fire detectors, drive devices, power supplies, communication lines, and control circuits; For fire detectors, check whether their connections are normal, whether there are fault signals (such as open circuit, short circuit or abnormal signal), the cleanliness of the detector (whether it is blocked by dust or debris), and the battery power (if the detector is battery-powered). By sending a test signal to the detector and receiving its response, determine whether the detector is working normally; When testing the drive device, check whether its electrical connection is firm, the working state of the electromagnet (such as whether the resistance value is normal, whether it can be normally attracted and released), whether the movement of the mechanical parts is smooth (such as whether the connecting rod and push rod are stuck), and whether the opening and closing position feedback of the valve is accurate, etc.; Monitor the power supply, including whether the voltage, frequency, and phase of the main power supply are normal, the capacity and charging status of the backup power supply, and whether the power switching function is normal. At the same time, check whether the connection of the communication line is reliable, whether the signal transmission is normal (such as whether there is signal loss, interference, etc.), and whether the various components in the control circuit (such as capacitors, resistors, chips, etc.) are working normally; When the fire controller detects a system fault, it immediately sends out an alarm signal in a variety of ways. The fault indicator light on the controller panel lights up (such as the yellow LED light is always on), and detailed fault information is displayed on the display screen, including the fault type, fault location, occurrence time, etc. In addition, the controller will also drive the external sound and light alarm to emit a specific fault alarm sound (such as an intermittent alarm sound with a frequency of 500Hz-1000Hz and an interval of 1 second) to attract the attention of the operator; after receiving the fault alarm signal, the operator will quickly determine the fault location and type according to the prompt information on the display screen, and take corresponding treatment measures.

[0033] This embodiment also includes a test of a Y-type gas fire extinguishing system, and the specific steps are as follows: 1. Fire detector function test: Use a professional smoke generator and heat source simulator to perform functional tests on smoke detectors and temperature detectors; start the smoke generator to generate simulated smoke near the smoke detectors, and check whether the smoke detectors can send out a fire alarm signal to the fire controller within the specified time (such as within 30 seconds); use a heat source simulator to heat the temperature detector, and when the temperature reaches the detector's operating temperature (such as 70°C), check whether the temperature detector can send out a fire alarm signal in time; test the coordinated work of smoke detectors and temperature detectors at the same time. Only when both send out fire signals at the same time should the fire controller start the fire extinguishing procedure.

[0034] 2. Fire controller function test: Test the automatic control function of the fire controller, by simulating the fire signal input of the fire detector, check whether the fire controller can perform operations such as composite signal linkage, main and standby power supply switching, door light display, sound and light alarm according to the preset program, and accurately send a start command to the drive device after a delay of 30 seconds (the delay time can be adjusted according to actual conditions); test the manual control function of the fire controller, press the manual control button, check whether the fire controller can skip the delay link under the fire detector signal judgment and automatic control function, and directly send a start command to the drive device; check the fault self-check and alarm function of the fire controller. Disconnect or simulate the fault occurring in the fire detector, drive device, power supply and other related components, check whether the fire controller can detect the fault in time and send an alarm signal, and accurately display the fault location and type on the display screen.

[0035] 3. Y-type gas fire extinguishing system linkage test: Simulate a fire scene in the protection zone, trigger the smoke detectors and temperature detectors to alarm at the same time, and observe the linkage of the entire Y-type gas fire extinguishing system; check whether the fire controller switches the main and standby power supplies, whether the door lights are on, whether the sound and light alarm device sounds an alarm, and whether the personnel have enough time to evacuate (by observing the simulated personnel evacuation situation); check whether the drive device accurately opens the container valve 17 and the electromagnetic drive valve 28 after a delay of 30 seconds, whether the HFC-227ea fire extinguishing agent in the cylinder 11 can be smoothly sprayed into the protection zone through the pipeline and the nozzle 27, and whether the spraying effect of the nozzle 27 meets the design requirements; repeat the above test in the manual control mode to ensure that the manual control function is reliable.

[0036] Embodiment 3 This embodiment provides a specific workflow of the intelligent fire monitoring algorithm model: The intelligent fire monitoring algorithm module establishes communication connections with various fire detectors installed in the protection area of ​​the box-type transformer and receives the data collected by them in real time. These detectors are distributed in different locations in the protection area and can monitor fire-related information from multiple angles. Smoke detectors continuously monitor the concentration of smoke particles in the air, and temperature detectors measure changes in ambient temperature. Each detector sends data to the intelligent fire monitoring algorithm module at a certain time interval. The data includes the unique identification of the detector, the collection time, and the measurement value. The received data is first preprocessed, including data cleaning and calibration. Abnormal values ​​(such as values ​​that exceed the normal measurement range or are obviously inconsistent with physical laws) are identified and eliminated. For example, if a smoke detector suddenly sends a very large concentration value, far exceeding the smoke concentration that may be generated under normal fire conditions, the data may be caused by a detector failure or interference, and will be marked as abnormal and excluded from subsequent analysis; the data of each detector is calibrated to ensure the accuracy of the data. According to the type and performance characteristics of the detector, the corresponding calibration algorithm is used. For example, a temperature detector may cause measurement deviation due to long-term use or environmental factors. By regularly comparing it with a standard temperature source, the deviation coefficient of the measured value is adjusted to make the temperature data more accurate; the data of different detectors are integrated according to the time and space dimensions to construct a fire monitoring data matrix. For example, the spatial coordinates of the protection zone are used as row indexes, and different detector types and acquisition times are used as column indexes. The data of various detectors at different locations at the same time point are organized together to provide a comprehensive data basis for subsequent analysis; Extract fire-related feature vectors from the integrated data matrix, calculate the rate of change of smoke concentration (such as the percentage of smoke concentration increase in the past 1 minute), temperature rise rate (degrees of temperature rise per second) and other features, which can reflect the development dynamics of the fire; use statistical methods and signal processing technology to analyze the feature vectors, for example, calculate the mean, variance, spectrum characteristics and other statistical indicators of the feature vectors to identify the difference between fire signals and normal environmental signals, and by analyzing the spectrum of the smoke concentration change rate, determine whether its frequency components are consistent with the law of smoke generation during the fire combustion process; Use pre-trained machine learning models (such as neural networks, support vector machines, etc.) to perform pattern recognition on the extracted feature vectors. The model is trained based on a large amount of historical fire data and simulated fire experimental data, and can distinguish different types of fire patterns (such as electrical fires, oil fires, common flammable material fires, etc.) and fire development stages (such as initial smoldering, open flame combustion, fire spread, etc.); Based on the output results of the model, combined with the set thresholds and decision rules, determine whether a fire has occurred and the severity of the fire. For example, if the model determines that the fire pattern is an electrical fire and the fire is in the early stages, and the smoke concentration change rate and temperature rise rate exceed the corresponding initial fire threshold, but have not yet reached the threshold of fierce combustion, it is determined to be an early stage of an electrical fire, and corresponding early warning and preliminary fire extinguishing measures need to be taken; Use time series prediction models (such as ARIMA models, LSTM networks, etc.) to predict the development trend of fires, taking historical and current fire characteristic data (smoke density, temperature, flame intensity, etc.) as input sequences to predict the changing trends of these characteristics in the future (such as the next 5-10 minutes); the model predicts based on the inherent laws and trends of the data, taking into account the inertia and nonlinear characteristics of fire development. For example, the LSTM network can memorize the long-term dependencies in the process of fire development and better capture the dynamic characteristics of fire changes, thereby more accurately predicting the direction and speed of fire spread and the range of changes in temperature and smoke density; According to the fire prediction results, the corresponding warning information is generated, including the type of fire, expected development direction, possible impact range, expected time to reach a dangerous state, etc.; the warning information is released in a variety of ways, such as the sound and light alarm at the box-type transformer site sends out specific sound and light signals (such as rapid alarm sounds and flashing red lights to indicate fire danger, slow prompt sounds and yellow lights to indicate fire warnings), and the warning information is sent to the mobile devices of relevant personnel (such as mobile phones, tablets, etc.) to ensure that on-site personnel and management personnel can receive fire warnings in time and take corresponding measures; The fire analysis and prediction results are transmitted to the fire controller in real time. The fire controller controls the drive device according to this information and adjusts the working state of the Y-type gas fire extinguishing equipment. For example, when the algorithm module predicts that the fire will spread rapidly, the fire controller immediately instructs the drive device to increase the opening of the container valve 17 and the electromagnetic drive valve 28, thereby increasing the spray flow rate of the fire extinguishing agent and enhancing the fire extinguishing effect. According to the direction of fire development and the layout of the protection area, the fire controller optimizes the spray strategy of the fire extinguishing agent. If it is predicted that the fire will spread to a specific area, the fire controller controls the nozzle 27 at the corresponding position to adjust the spray angle and flow rate so that the fire extinguishing agent can cover the possible fire source spread path in advance and prevent the fire from spreading further. The intelligent fire monitoring algorithm module has adaptive learning capabilities. It continuously collects actual data during a fire and compares and analyzes it with the predicted results. If a deviation is found between the prediction and the actual situation, the algorithm model parameters are automatically adjusted to optimize the prediction model. Through continuous learning and optimization, the algorithm module can better respond to various fire situations and improve the performance and reliability of the entire fire extinguishing system.

[0037] Through the above detailed embodiments, it can be ensured that the Y-type gas fire extinguishing equipment and its fire extinguishing system can operate accurately and reliably according to the design requirements, providing effective fire safety protection for places such as box-type transformers.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A Y-type gas fire extinguishing equipment, characterized in that: The fire extinguishing assembly (1) comprises a steel cylinder (11), a tee (12), a first connecting pipe (13), a first elbow (14), a second connecting pipe (15), a valve interface (16), a container valve (17), a signal feedback device (18), a second elbow (19), a third connecting pipe (20), a third elbow (21), a fourth connecting pipe (22), a flexible joint (23), a fifth connecting pipe (24), a fourth elbow (25), a seamless steel pipe (26) and a nozzle (27); The center of the top of the steel cylinder (11) is connected to a tee (12), both sides of the tee (12) are connected to a first elbow (14) via a first connecting pipe (13), the tops of the two first elbows (14) are connected to a valve interface (16) via a second connecting pipe (15), the inner side walls of the two valve interfaces (16) are installed with a container valve (17), the outlets of the two container valves (17) are connected to a second elbow (19) via a signal feedback device (18), and the two second The top of each elbow (19) is connected to a third elbow (21) via a third connecting pipe (20); the ends of the two third elbows (21) that are separated from each other are connected to a flexible joint (23) via a fourth connecting pipe (22); the ends of the two flexible joints (23) that are separated from each other are connected to a fourth elbow (25) via a fifth connecting pipe (24); the tops of the two fourth elbows (25) are connected to a seamless steel pipe (26); and nozzles (27) are installed on the tops of the two seamless steel pipes (26).

2. A Y-type gas fire extinguishing equipment according to claim 1, characterized in that: An electromagnetically driven valve (28) is provided on the top of each of the two container valves (17).

3. A Y-type gas fire extinguishing equipment according to claim 1, characterized in that: Pressure gauges (29) are installed on the sides of the middle portions of the outer side walls of the two container valves (17) that are close to each other.

4. A Y-type gas fire extinguishing equipment according to claim 1, characterized in that: The seamless steel pipe (26) is made of a high temperature resistant and corrosion resistant alloy material, and the steel cylinder (11) stores a heptafluoropropane fire extinguishing agent.

5. A Y-type gas fire extinguishing equipment according to claim 1, characterized in that: The signal feedback device (18) is a pressure sensor or an electromagnetic induction switch, and is used to feedback the working state of the electromagnetic drive valve (28).

6. A Y-type gas fire extinguishing system, characterized in that: A Y-type gas fire extinguishing equipment used as described in any one of claims 1 to 5, further comprising a fire detector, a fire controller, a drive device, a power module, an audible and visual alarm device and an intelligent fire monitoring algorithm module, wherein the fire detector is used to transmit a fire signal to the fire controller, the fire controller is used to receive the fire signal transmitted by the fire detector and control the drive device according to the fire signal, the drive device is used to turn on the Y-type gas fire extinguishing equipment for fire extinguishing, the intelligent fire monitoring algorithm module is used to analyze and process the data collected by the fire detector, the power module is used to power the Y-type gas fire extinguishing system, and the audible and visual alarm device is used to drive a speaker to sound an alarm through a built-in audio amplifier, and at the same time control the indicator light to flash, so as to remind people in the protection area to evacuate in time.

7. A Y-type gas fire extinguishing system according to claim 6, characterized in that: The fire detector includes a smoke detector and a temperature detector. When the smoke detector and the temperature detector send a fire signal to the fire controller at the same time, the fire controller starts a fire extinguishing procedure.

8. A Y-type gas fire extinguishing system according to claim 6, characterized in that: The driving device comprises mechanical and electrical devices for opening a container valve (17) and an electromagnetically driven valve (28), and the driving device is used to execute instructions from a fire controller.

9. A Y-type gas fire extinguishing system according to claim 6, characterized in that: The fire controller has an automatic control function and a manual control function. The manual control function starts the fire extinguishing system through a manual control button, and when the manual control button starts the fire extinguishing system, the fire detector signal judgment and the delay link under the automatic control function are skipped.

10. A Y-type gas fire extinguishing system according to claim 9, characterized in that: The fire controller also has fault self-detection and alarm functions, which are used to monitor system faults and issue alarms.

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