A brand new pump group perfluorocyclohexanone gas fire extinguishing system

Abstract

This invention discloses a novel pump-type perfluorohexanone (PFH) gas fire extinguishing system, comprising a main controller, a storage tank, a piping network, a detection component, and a gas replenishment component. The storage tank stores PPH extinguishing agent and is connected to a high-pressure pump, which is electrically connected to the main controller. The piping network is connected to the high-pressure pump and has multiple nozzles spaced apart on it. The detection component is electrically connected to the main controller and is used to detect the ambient temperature and smoke signals at the fire scene, transmitting these signals to the main controller. The gas replenishment component includes a nitrogen tank and a pressure regulating valve. The pressure regulating valve is connected to both the nitrogen tank and the storage tank and is electrically connected to the main controller. When the PPH extinguishing agent in the storage tank is extracted, the pressure regulating valve opens, replenishing the storage tank with nitrogen from the nitrogen tank. This invention avoids water vapor intrusion into the storage tank and prevents the hydrolysis reaction of PPH, thereby reducing the risk of corrosion and improving the reliability and safety of the system.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and more specifically, to a novel pump-type perfluorohexanone gas fire extinguishing system. Background Technology

[0002] Traditional perfluorohexanone (PFH) fire extinguishing systems primarily use internally pressurized high-pressure cylinders to store the extinguishing agent. These high-pressure cylinders, as special equipment, require regular safety inspections, typically every three years, leading to complex maintenance procedures and significantly increased periodic costs. Furthermore, equipment purchase and daily maintenance expenses are high. Another type of system uses atmospheric pressure stainless steel tanks to store the PPH extinguishing agent. After being pressurized by a pump, the agent is sprayed onto the protected area through atomizing nozzles to extinguish the fire. However, during the spraying process, the internal pressure of the tank decreases, requiring the intake of ambient air through a breather valve to maintain pressure balance. Because PPH is chemically reactive, it readily hydrolyzes with water vapor in the air, producing highly corrosive acids such as hydrofluoric acid. These substances not only severely corrode the tank's inner walls and piping components, shortening equipment lifespan, but may also release harmful gases that threaten the health and safety of on-site personnel. Although some existing systems have attempted to add a waterproof and breathable membrane structure to the breather valve, this design can only block liquid water droplets and cannot effectively filter gaseous water vapor. As a result, the problem of moisture intrusion has not been fundamentally solved, and the reliability and safety of the system have obvious defects. Summary of the Invention

[0003] The purpose of this application is to provide a pump-type perfluorohexanone gas fire extinguishing system that prevents water vapor from entering the storage tank, prevents the hydrolysis reaction of perfluorohexanone, thereby reducing the risk of corrosion and improving the reliability and safety of the system.

[0004] This application provides a novel pump-type perfluorohexanone gas fire extinguishing system, the technical solution of which is as follows: include: Main controller; The storage tank is used to store perfluorohexanone fire extinguishing agent. The storage tank is connected to a high-pressure pump, which is electrically connected to the main controller. The pipeline network is connected to the high-pressure pump, and multiple nozzles are distributed at intervals on the pipeline network. The detection component is electrically connected to the main controller and is used to detect ambient temperature and gas composition signals and transmit the signals to the main controller. The gas replenishment component includes a nitrogen tank and a pressure regulating valve. The pressure regulating valve is connected to both the nitrogen tank and the storage tank, and is electrically connected to the main controller. When the perfluorohexanone extinguishing agent in the storage tank is extracted, the pressure regulating valve opens to replenish the nitrogen in the nitrogen tank into the storage tank.

[0005] Furthermore, this application also proposes that the storage tank is made of stainless steel and its inner wall is coated with PTFE material.

[0006] Furthermore, this application also proposes that a pressure sensor is installed inside the storage tank, and the pressure sensor is electrically connected to the main controller.

[0007] Furthermore, this application also proposes that there are two high-pressure pumps, and that each of the two high-pressure pumps is connected to a gate valve between itself and the storage tank.

[0008] Furthermore, this application also proposes that the high-pressure pump is electrically connected to a pump group controller, which is electrically connected to the main controller.

[0009] Furthermore, this application also proposes that a check valve and a solenoid selector valve are connected between the pipeline network and the high-pressure pump.

[0010] Furthermore, this application also proposes that the detection components include a heat detector and a smoke detector.

[0011] Furthermore, this application also proposes that the main controller is electrically connected to an audible and visual alarm.

[0012] As can be seen from the above, the pump-type perfluorohexanone gas fire extinguishing system provided in this application includes a main controller, a storage tank, a high-pressure pump, a pipeline network, a detection component, and a gas replenishment component. When the extinguishing agent is extracted, the gas replenishment component automatically replenishes nitrogen to maintain the pressure of the storage tank, preventing the entry of external air and thus preventing the hydrolysis reaction of perfluorohexanone caused by water vapor. It has the advantages of preventing water vapor from entering the storage tank, preventing the hydrolysis reaction of perfluorohexanone, thereby reducing the risk of corrosion and improving the reliability and safety of the system. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of an embodiment of the novel pump-type perfluorohexanone gas fire extinguishing system of the present invention.

[0015] Explanation of icon numbers: 1. Main controller; 2. Storage tank; 21. Perfluorohexanone extinguishing agent; 22. High-pressure pump; 23. Pressure sensor; 24. Gate valve; 25. Check valve; 26. Electromagnetic selector valve; 3. Piping network; 31. Nozzle; 41. Temperature detector; 42. Smoke detector; 51. Nitrogen tank; 52. Pressure regulator; 6. Pump group controller; 7. Audible and visual alarm.

[0016] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] Traditional perfluorohexanone (PFH) fire extinguishing systems store the extinguishing agent in two main ways: First, some systems use internally pressurized high-pressure cylinders, which require regular inspections, a cumbersome process with high equipment and operating costs. Second, some systems use atmospheric pressure stainless steel tanks, replenished by drawing in external gas through a breathing valve. However, PPH extinguishing agent readily reacts with water to produce acidic substances that corrode the cylinders and pose a health hazard. Furthermore, the air drawn in from the outside easily carries moisture, which can react with the extinguishing agent. Even breathing valves with waterproof and breathable membranes cannot completely prevent water vapor from entering the air.

[0019] In this regard, refer to Figure 1 This application proposes a novel pump-type perfluorohexanone gas fire extinguishing system, comprising: a main controller 1; Storage tank 2 is used to store perfluorohexanone fire extinguishing agent 21. Storage tank 2 is connected to high pressure pump 22, which is electrically connected to main controller 1. Pipeline network 3 is connected to high-pressure pump 22, and multiple nozzles 31 are distributed at intervals on pipeline network 3; The detection component is electrically connected to the main controller 1 and is used to detect ambient temperature and gas composition signals and transmit the signals to the main controller 1. The gas replenishment component includes a nitrogen tank 51 and a pressure regulating valve 52. The pressure regulating valve 52 is connected to the nitrogen tank 51 and the storage tank 2 respectively, and is electrically connected to the main controller 1. When the perfluorohexanone extinguishing agent 21 in the storage tank 2 is extracted, the pressure regulating valve 52 opens to replenish the nitrogen in the nitrogen tank 51 into the storage tank 2.

[0020] For ease of understanding, the following explains some key terms in this embodiment: The main controller 1 is the core control unit of the system. It is responsible for receiving signals from the detection components and controlling the actuators such as the high-pressure pump 22 and the pressure regulating valve 52 according to preset logic to achieve the spraying of the extinguishing agent and the pressure balance of the storage tank 2. The storage tank 2 is a container used to safely store the perfluorohexanone extinguishing agent 21. Its design is intended to adapt to the physicochemical properties of the perfluorohexanone extinguishing agent 21 to ensure the long-term stable storage of the extinguishing agent. The high-pressure pump 22 is a pressurization device used to extract and pressurize the perfluorohexanone extinguishing agent 21 in the storage tank 2, so that it can be delivered to the nozzles 31 through the pipeline network 3 and sprayed in an atomized state. The pipeline network 3 is a delivery path consisting of a series of pipes, connecting the high-pressure pump 22 and each nozzle 31 to ensure that the extinguishing agent can be effectively delivered to various locations within the protected area. The nozzles 31 are devices installed at the end of the pipeline network 3, used to evenly spray the perfluorohexanone extinguishing agent 21 delivered by the high-pressure pump 22 into the protected area in the form of fine droplets to achieve efficient fire extinguishing. The detection component is a device used to monitor environmental parameters of the protected area, such as ambient temperature and smoke concentration, and transmits these signals to the main controller 1 in real time as the basis for the system to initiate the fire extinguishing procedure. The gas replenishment component is a device used to replenish inert gas into storage tank 2 to maintain the pressure inside tank 2 when the extinguishing agent is extracted, its purpose being to prevent outside air from entering tank 2. Nitrogen tank 51 is a container for storing high-purity nitrogen gas. Nitrogen, as an inert gas, is used to replenish storage tank 2 to avoid reaction with perfluorohexanone extinguishing agent 21. The pressure regulating valve 52 is a pressure control device that regulates the nitrogen pressure output from nitrogen tank 51, ensuring it enters storage tank 2 at a suitable pressure. It is also controlled by the main controller 1 and opens when needed. Perfluorohexanone extinguishing agent 21 is a highly efficient and environmentally friendly clean extinguishing agent, characterized by high fire extinguishing efficiency, no damage to equipment, and minimal environmental impact.

[0021] In the embodiments of this application, the main controller 1 can be implemented using an industrial-grade programmable logic controller (PLC) or an embedded control system. It has a pre-set fire suppression logic program that can make judgments and decisions based on received signals. The main controller 1 connects to other electrical components in the system via wired or wireless means to send commands and receive status updates.

[0022] Storage tank 2 can be made of conventional stainless metal materials, such as 304 stainless steel or 316L stainless steel, and its internal space is used to contain perfluorohexanone extinguishing agent 21. The structural design of storage tank 2 must meet the volume and pressure requirements of the stored medium and have corresponding inlets and outlets to facilitate the filling, extraction and replenishment of extinguishing agent and nitrogen.

[0023] The high-pressure pump 22 can be configured as a single pump and is directly connected to the storage tank 2 via a pipeline. The motor of the high-pressure pump 22 is electrically connected to the main controller 1. The main controller 1 issues a start command based on the signal from the detection component, driving the high-pressure pump 22 to extract and pressurize the extinguishing agent from the storage tank 2.

[0024] The pipeline network 3 consists of a series of standard pipes and fittings, one end of which is connected to the outlet of the high-pressure pump 22, and the other end is connected to multiple nozzles 31 through branch pipelines. The nozzles 31 can be conventional atomizing nozzles 31, and their number and distribution are designed according to the size and shape of the protected area to ensure uniform coverage of the extinguishing agent.

[0025] The detection unit can consist of independent temperature sensors and gas composition sensors, which are installed within the protected area to monitor ambient temperature and the concentration of potentially harmful gases in real time. The detection unit is electrically connected to the main controller 1 via signal cables, converting the collected environmental data into electrical signals and transmitting them to the main controller 1.

[0026] The nitrogen cylinder 51 in the gas replenishment assembly can be a standard industrial nitrogen cylinder, which stores high-purity nitrogen. A pressure regulating valve 52 is installed on the connecting pipeline between the nitrogen cylinder 51 and the storage tank 2, and is electrically connected to the main controller 1. When the main controller 1 detects that the extinguishing agent has been extracted, it sends an opening signal to the pressure regulating valve 52, causing the nitrogen in the nitrogen cylinder 51 to be depressurized and enter the storage tank 2 after passing through the pressure regulating valve 52, thus replenishing the volume occupied by the extracted extinguishing agent.

[0027] Through the above technical solution, this application can effectively solve the problem of moisture entering the fire extinguishing agent and causing corrosive substances to be produced due to the intake of external air in the traditional perfluorohexanone fire extinguishing system. At the same time, it avoids the cumbersome and costly process of regular testing of high-pressure cylinders, realizes the normal pressure storage of fire extinguishing agent and the replenishment of inert gas, and ensures the long-term stability of fire extinguishing agent and the operational reliability of the system.

[0028] In some of the above-mentioned schemes of this application, a storage tank 2 is proposed for storing perfluorohexanone fire extinguishing agent 21. However, in this process, the material of the storage tank 2 may be corroded by the fire extinguishing agent, resulting in a reduction in system life and safety risks.

[0029] In this regard, this application further proposes that the storage tank 2 is made of stainless steel and its inner wall is coated with PTFE material.

[0030] Specifically, stainless steel is an alloy material with excellent corrosion resistance, strength, and durability, and its main components are iron, chromium, and nickel. In the fire extinguishing system, using stainless steel as the main material of storage tank 2 provides robust structural support, resisting external mechanical impacts and internal pressure, while also possessing basic corrosion resistance, ensuring that storage tank 2 is not prone to structural damage or leakage due to corrosion during long-term use. For example, grades such as 304 stainless steel or 316L stainless steel can be selected, as these stainless steels meet the requirements of industrial applications in terms of strength and corrosion resistance. Meanwhile, PTFE (polytetrafluoroethylene), commonly known as "Teflon," is a high-performance fluoropolymer renowned for its excellent chemical inertness, high-temperature resistance, low coefficient of friction, and non-stick properties. Coating the inner wall of storage tank 2 with PTFE aims to form a dense, chemically stable insulating layer. This PTFE coating effectively prevents direct contact between perfluorohexanone extinguishing agent 21 and the stainless steel inner wall of storage tank 2, thereby avoiding potential corrosion reactions caused by the extinguishing agent. The coating method may include, but is not limited to, spraying, roller coating, dip coating, or using PTFE lining technology to ensure that the coating is uniform, non-porous, and firmly bonded to the stainless steel substrate.

[0031] Through the above technical solution, storage tank 2 adopts stainless steel as its main structure, providing excellent mechanical strength and basic corrosion resistance, ensuring the structural integrity and long-term stability of storage tank 2. More importantly, PTFE material is coated on the inner wall of storage tank 2. Utilizing the excellent chemical inertness of PTFE, an effective chemical barrier is established between perfluorohexanone extinguishing agent 21 and the stainless steel storage tank 2. This barrier can completely prevent direct contact between perfluorohexanone extinguishing agent 21 and the inner wall of storage tank 2, thereby fundamentally avoiding the problem of perfluorohexanone extinguishing agent 21 reacting with metal materials to produce acidic substances, which would then corrode the inner wall of storage tank 2. This significantly improves the corrosion resistance and service life of storage tank 2, effectively preventing extinguishing agent leakage, system failure, and potential hazards to the environment and personnel caused by corrosion, ensuring the long-term reliability and safety of the new pump-type perfluorohexanone gas fire extinguishing system.

[0032] In some of the embodiments described above in this application, the material and coating of the storage tank 2 are proposed to prevent corrosion. However, in the implementation process, the lack of monitoring of the internal air pressure of the storage tank 2 may lead to inaccurate air replenishment, affecting system stability and fire extinguishing efficiency.

[0033] In this regard, refer to Figure 1 This application further proposes that the storage tank 2 is equipped with a pressure sensor 23, which is electrically connected to the main controller 1.

[0034] The pressure sensor 23 is a device capable of sensing the gas pressure inside the storage tank 2 and converting it into a processable electrical signal. Installed inside the storage tank 2, it can directly and in real-time acquire pressure data within the tank, avoiding interference from external environmental factors and ensuring the accuracy of pressure monitoring. Specifically, the pressure sensor 23 can be a piezoresistive sensor, which reflects pressure by measuring changes in the resistance of a pressure-sensitive resistor, featuring fast response and high accuracy; or, the pressure sensor 23 can be a capacitive sensor, which reflects pressure by measuring changes in capacitance caused by changes in the spacing between capacitor plates, exhibiting good long-term stability and anti-interference capabilities.

[0035] The electrical connection between the pressure sensor 23 and the main controller 1 aims to establish a reliable data transmission channel, ensuring that the real-time pressure data collected by the pressure sensor 23 can be accurately and promptly transmitted to the main controller 1. This electrical connection can be wired, for example, by directly transmitting the analog or digital output signal of the pressure sensor 23 to the corresponding input port of the main controller 1 via a shielded cable; or it can be wireless, for example, by having a built-in wireless communication module in the pressure sensor 23 to send pressure data to the main controller 1 via a wireless network or by connecting to a wireless receiving module of the main controller 1. Through this connection, the main controller 1 can obtain the pressure status inside the storage tank 2 in real time, providing crucial information for subsequent system control and decision-making.

[0036] Through the above technical solution, the pressure sensor 23 inside the storage tank 2 can monitor the pressure changes inside the storage tank 2 in real time and accurately, and promptly feed this data back to the main controller 1. Based on this precise pressure data, the main controller 1 can precisely control the pressure regulating valve 52 in the gas replenishment assembly. For example, when the pressure drops due to the extraction of perfluorohexanone extinguishing agent 21 from the storage tank 2, the main controller 1 can precisely control the opening degree and gas replenishment amount of the pressure regulating valve 52 according to the feedback from the pressure sensor 23, so that the nitrogen in the nitrogen tank 51 can be replenished into the storage tank 2 in a timely and appropriate manner, thereby maintaining the stability of the internal pressure of the storage tank 2. This not only solves the problem of inaccurate gas replenishment caused by the lack of precise pressure monitoring, effectively avoiding the reduction of extinguishing agent extraction efficiency or potential corrosion risks, but also significantly improves the response speed, operational stability, and extinguishing efficiency of the entire fire extinguishing system, ensuring that the system can reliably perform fire extinguishing tasks at critical moments.

[0037] In some of the embodiments described above in this application, a high-pressure pump 22 is proposed for extracting perfluorohexanone extinguishing agent 21. However, in its implementation, the individual high-pressure pump 22 is at risk of failure, resulting in insufficient system reliability and lack of isolation mechanism, making maintenance inconvenient.

[0038] In this regard, refer to Figure 1This application further proposes that there are two high-pressure pumps 22, and each of the two high-pressure pumps 22 is connected to the storage tank 2 by a gate valve 24.

[0039] Specifically, the high-pressure pump 22 is a key piece of equipment used to pressurize the perfluorohexanone extinguishing agent 21 in the storage tank 2 and deliver it to the pipeline network 3. The installation of two high-pressure pumps 22 can be implemented in various ways. For example, they can be configured in a one-in-one standby mode, where one high-pressure pump 22 operates as the main pump and the other acts as a standby pump. If the main pump fails, the standby pump can immediately take over, ensuring a continuous supply of extinguishing agent. Alternatively, the two high-pressure pumps 22 can operate in parallel, sharing the task of delivering the extinguishing agent, thereby extending the service life of a single pump or providing stronger delivery capacity when high-flow-rate spraying is required.

[0040] The gate valve 24 is a valve used to cut off or connect fluid media. In this embodiment, a gate valve 24 is connected between each high-pressure pump 22 and the storage tank 2, which serves to achieve independent isolation of each individual high-pressure pump 22. The gate valve 24 can be a manually operated mechanical gate valve 24, which is controlled by manually rotating a handwheel to open and close the valve; or it can be an automatically controlled gate valve 24, such as an electric or pneumatic one, which is remotely controlled by the main controller 1 or the pump group controller 6 to achieve fast and precise isolation operation.

[0041] Through the above technical solution, the system possesses higher operational reliability and maintenance convenience. Because two high-pressure pumps 22 are installed, if one high-pressure pump 22 fails, the other high-pressure pump 22 can immediately take over, avoiding system failure due to a single point of failure and ensuring timely and effective spraying of extinguishing agent in the event of a fire. Simultaneously, each high-pressure pump 22 is connected to the storage tank 2 by a gate valve 24. This allows for the isolation of any high-pressure pump 22 from the storage tank 2 by closing the corresponding gate valve 24 without stopping the entire fire extinguishing system. This greatly simplifies the maintenance process, shortens maintenance time, and prevents leakage or backflow of extinguishing agent during maintenance, improving the system's safety and operability.

[0042] In some of the embodiments described above in this application, it is proposed to use two high-pressure pumps 22 to enhance the redundancy of the system and the fire extinguishing agent delivery capacity. However, in the process of implementation, direct control of multiple high-pressure pumps 22 by the main controller 1 may lead to scattered control commands, reduced response efficiency, or increased risk of system failure, because the main controller 1 needs to handle multiple tasks such as detection components and gas replenishment components at the same time, making it difficult to achieve refined management of the high-pressure pumps 22.

[0043] In this regard, refer to Figure 1This application further proposes that the high-pressure pump 22 is also electrically connected to a pump group controller 6, which is electrically connected to the main controller 1.

[0044] The pump controller 6 is an independent control unit specifically designed to manage the operation of the high-pressure pump 22. Its function is to receive instructions from the main controller 1 and perform real-time monitoring and precise control of the high-pressure pump 22's start-up, shutdown, and operating status (such as speed, pressure, and flow rate), while also providing fault diagnosis and early warning. Specifically, the pump controller 6 can be implemented using an industrial-grade programmable logic controller (PLC), which uses preset control logic and algorithms to automatically manage the high-pressure pump 22 and interact with the main controller 1. Alternatively, the pump controller 6 can be built on an embedded microcontroller system, which integrates necessary sensor interfaces, actuator drive circuits, and communication modules to achieve precise control and status feedback of the high-pressure pump 22.

[0045] The electrical connection refers to the electrical connection method used to realize signal transmission and / or power supply. Specifically, the electrical connection between the pump group controller 6 and the high-pressure pump 22 can use industrial fieldbus protocols (such as Modbus RTU, CAN bus, or Profinet) for data communication to ensure accurate issuance of control commands and real-time feedback of operating status. In addition, the electrical connection between the pump group controller 6 and the main controller 1 can use Ethernet or RS-485 serial communication interface to realize system-level data exchange and coordinated control, ensuring that the main controller 1 can perform macro-level scheduling and monitoring of the pump group.

[0046] Through the above technical solution, this application effectively solves the problems of scattered control commands, reduced response efficiency, and increased system failure risk that the main controller 1 may face when managing multiple high-pressure pumps 22. Specifically, after adding the pump group controller 6, which serves as a dedicated management unit for the high-pressure pumps 22, it can independently handle specific operations such as starting and stopping, status monitoring, and fault diagnosis of the high-pressure pumps 22, thereby separating these complex low-level control tasks from the main controller 1. This allows the main controller 1 to focus on coordinating the overall fire extinguishing process and issuing high-level commands, avoiding command conflicts or delays that may occur due to direct intervention in the operation of the high-pressure pumps 22. Given that the above system has two high-pressure pumps 22, the pump group controller 6 can intelligently manage and schedule these two high-pressure pumps 22. For example, under normal circumstances, they can be operated alternately to extend equipment life, or started simultaneously when a large flow rate is required. When one high-pressure pump 22 fails, the pump group controller 6 can quickly switch to the other backup high-pressure pump 22 to ensure a continuous and stable delivery of extinguishing agent, greatly improving the redundancy and reliability of the system. In addition, the electrical connection between the pump group controller 6 and the main controller 1 ensures that the main controller 1 can indirectly and efficiently dispatch the high-pressure pump 22 through the pump group controller 6 when coordinating the overall fire extinguishing process. This enables the transmission of control commands and real-time feedback of operating status, improving the coordination and response speed of the entire fire extinguishing system. At the same time, it reduces potential failures caused by control complexity, thereby ensuring the efficient and reliable operation of the fire extinguishing system in emergency situations.

[0047] In some of the embodiments described above in this application, a pump-type system for fire extinguishing is proposed. However, in its implementation, inaccurate fluid flow control may lead to backflow of the extinguishing agent or improper path selection, affecting system efficiency and safety.

[0048] In this regard, refer to Figure 1 This application further proposes that a one-way valve 25 and a solenoid selector valve 26 are also connected between the pipeline network and the high-pressure pump 22.

[0049] The one-way valve 25 is a fluid control element whose core function is to ensure that fluid can only flow in a preset direction and prevent backflow. This can be achieved, but is not limited to: a swing-type one-way valve 25 with a swing valve disc, where the valve disc is pushed open when the fluid flows in the forward direction, allowing fluid to pass through; and when the fluid attempts to flow in the reverse direction, the valve disc automatically closes under fluid pressure, thus blocking backflow. Another implementation is a lift-type one-way valve 25, where the valve core moves up and down along the valve body axis under fluid pressure, achieving unidirectional flow.

[0050] The electromagnetic selector valve 26 is a control valve that uses electromagnetic force to drive the valve core, thereby changing the fluid passage or direction. Its function is to precisely select or switch the fluid flow path based on the electrical signal sent by the main controller 1. Specifically, the electromagnetic selector valve 26 can be designed as a two-way, three-way, or multi-way structure. For example, by energizing or de-energizing the electromagnetic coil, the valve core switches between different positions, thereby directing the extinguishing agent output from the high-pressure pump 22 to a specific area of ​​the pipeline network 3 or the nozzle 31.

[0051] Through the above technical solutions, in the pump-type perfluorohexanone gas fire extinguishing system, the one-way valve 25 effectively prevents the extinguishing agent from flowing back from the pipeline network 3 to the high-pressure pump 22 or storage tank 2 when the high-pressure pump 22 stops working or the system pressure fluctuates. This maintains the stability of the internal system pressure and the unidirectional flow of fluid, avoiding waste of extinguishing agent and potential system pollution. Simultaneously, the introduction of the electromagnetic selector valve 26 allows the main controller 1 to precisely control the delivery path of the extinguishing agent based on the fire location or area detected by the detection components, achieving rapid and accurate fire extinguishing of specific protected areas. This precise fluid path control not only improves fire extinguishing efficiency and reduces unnecessary consumption of extinguishing agent, but also further enhances the safety and reliability of the system by preventing the extinguishing agent from being sprayed in non-target areas. Overall, the synergistic effect of the one-way valve 25 and the electromagnetic selector valve 26 significantly improves the accuracy and reliability of fluid control in the pump-type perfluorohexanone gas fire extinguishing system, ensuring that the extinguishing agent can be efficiently and safely delivered to the target area.

[0052] In some of the solutions described above in this application, a detection component is proposed to detect ambient temperature and gas composition signals and transmit the signals to the main controller 1. However, in the implementation process, the detection component may not be able to detect fire signals comprehensively and accurately, resulting in untimely system response or malfunction.

[0053] In this regard, refer to Figure 1 This application further proposes that the above-mentioned detection components include a heat detector 41 and a smoke detector 42.

[0054] Specifically, the heat detector 41 is a device used to detect changes in ambient temperature, and its main function is to provide thermal signals when a fire occurs. The heat detector 41 can be implemented using various technologies. For example, it can be a detector based on the principles of thermistors or thermocouples, which outputs an electrical signal to the main controller 1 when the ambient temperature reaches a preset fixed temperature threshold or the rate of temperature rise exceeds a set value; alternatively, it can be an infrared heat detector 41, which detects infrared radiation emitted by objects within the protected area in a non-contact manner, thereby determining temperature changes and identifying the thermal characteristics of a fire.

[0055] Meanwhile, the smoke detector 42 is a device for detecting smoke particles in the environment, and its main function is to provide a smoke signal when a fire occurs. This smoke detector 42 can also be implemented using various technologies. For example, a photoelectric smoke detector 42 can be used, which determines the smoke concentration by detecting the degree of scattering or obstruction of the light beam inside the detector by smoke particles, and triggers an alarm when the smoke concentration reaches a preset threshold; or, an ionization smoke detector 42 can be used, which determines the presence of smoke by detecting the effect of smoke particles on the current in the ionized air.

[0056] By integrating the heat detector 41 and smoke detector 42 into the detection component using the above technical solution, the fire extinguishing system can simultaneously monitor two key indicators of a fire: heat and smoke. The heat detector 41 can effectively identify smokeless fires (such as electrical short circuits or overload heating), while the smoke detector 42 can promptly detect smoldering fires (such as aging wire insulation or slow burning of paper) or fires with initial smoke but no obvious heat. This dual detection mechanism significantly improves the comprehensiveness and accuracy of fire signal detection, avoiding false alarms or missed alarms that may occur with a single detection method, thus ensuring that the main controller 1 can receive fire signals more promptly and reliably. Therefore, the fire extinguishing system can initiate the fire extinguishing procedure more quickly, effectively control the fire, minimize potential property damage and personnel risks, and improve the safety and reliability of the entire system.

[0057] In some of the embodiments described above in this application, a main controller 1 is proposed to control the operation of the fire extinguishing system. However, in its implementation, there is a lack of an effective alarm mechanism to promptly notify personnel of the occurrence of a fire.

[0058] In this regard, refer to Figure 1 Furthermore, this application proposes that the main controller 1 is also electrically connected to an audible and visual alarm 7.

[0059] Specifically, the audible and visual alarm 7 is a device that integrates a sound alarm unit and a visual alarm unit. Its main function is to alert surrounding personnel by emitting a loud sound and flashing light when a specific signal is received. The sound alarm unit can use a buzzer, speaker, etc., to produce a high-decibel alarm sound; the visual alarm unit can use LED lights, xenon flashlights, etc., to produce a high-brightness flashing light. In practical applications, the audible and visual alarm 7 can be designed as an integrated structure, integrating the sound and visual alarm functions into one device, electrically connected to the main controller 1 through a single interface to achieve synchronous or asynchronous sound and visual warnings. Alternatively, a separate structure can be adopted, where the sound alarm and visual alarm are independent devices, each electrically connected to the main controller 1, allowing for flexible configuration of alarm modes according to specific scenario requirements. For example, only the visual alarm can be activated in areas requiring silent alarms, while sound and light can be activated simultaneously in areas requiring strong warnings. The electrical connection between the main controller 1 and the audible and visual alarm 7 is usually a wired connection, that is, the control input terminal and power input terminal of the audible and visual alarm 7 are physically connected to the corresponding output ports of the main controller 1 by laying a cable. This connection method has advantages such as stable signal transmission, strong anti-interference ability, and reliable power supply. In certain special scenarios, such as when wiring is difficult or flexible deployment is required, a wireless connection method can also be considered. This method integrates a wireless communication module to achieve wireless communication between the main controller 1 and the audible and visual alarm 7, with the main controller 1 sending wireless commands to trigger the audible and visual alarm 7 to operate.

[0060] Through the aforementioned technical solution, in the new pump-type perfluorohexanone gas fire extinguishing system, when the detection component detects a fire signal and transmits it to the main controller 1, the main controller 1 can immediately issue an audible and visual alarm via the electrically connected audible and visual alarm 7. This design allows fire information to be rapidly transmitted to on-site personnel through both visual and auditory means, effectively solving the problem of lack of timely alarm notification. Given the characteristics of perfluorohexanone extinguishing agent 21, timely personnel evacuation and response are crucial. The introduction of the audible and visual alarm 7 ensures that personnel can be informed of the fire situation and take corresponding emergency measures before or during the activation of the fire extinguishing system, avoiding delays and potential dangers caused by information lag. This significantly improves the safety and practicality of the entire fire extinguishing system, protecting the lives and property of personnel.

[0061] The following example will provide a more detailed explanation of the above technical solution: This pump-type perfluorohexanone gas fire suppression system was deployed in an area requiring high fire protection, such as a large data center. The main controller 1 of the system serves as the core control unit, responsible for coordinating the operation of all components.

[0062] Tank 2 in the system is used to store perfluorohexanone extinguishing agent 21. Tank 2 is made of stainless steel with its inner wall coated with PTFE material. This design effectively prevents corrosion that may be caused by the perfluorohexanone extinguishing agent 21 and ensures the long-term stability of the extinguishing agent. Tank 2 is also equipped with a pressure sensor 23, which monitors the pressure inside the tank in real time and transmits the data to the main controller 1. Tank 2 is connected to two high-pressure pumps 22, each connected to a gate valve 24, providing flexibility for system maintenance and redundant operation. The high-pressure pumps 22 are electrically connected to the main controller 1 and are finely managed through the pump group controller 6.

[0063] Piping network 3 connects to high-pressure pump 22 and extends to various protected areas within the data center. Multiple nozzles 31 are spaced apart on piping network 3. A one-way valve 25 and an electromagnetic selector valve 26 are also connected between piping network 3 and high-pressure pump 22 to ensure unidirectional flow of extinguishing agent and to select the spray area as needed.

[0064] The detection components, including heat detectors 41 and smoke detectors 42, are deployed within the data center. These detectors continuously monitor ambient temperature and gas composition signals. Once signs of a fire are detected, such as an abnormally high temperature or excessive smoke concentration, the detection components immediately transmit a signal to the main controller 1.

[0065] Upon receiving a fire signal, the main controller 1 will immediately activate the audible and visual alarm 7 to alert personnel in the area. Simultaneously, the main controller 1 will send a linkage signal (such as shutting down ventilation and air conditioning, fire dampers, etc.). After a pre-set 30-second delay, it will output a signal to activate the fire extinguishing system, causing the electromagnetic selector valve 26 of the corresponding protected area to open, instructing the high-pressure pump 22 to start, and delivering perfluorohexanone extinguishing agent 21 through the pipeline network 3 to the nozzle 31, which will then spray it into the protected area to extinguish the fire.

[0066] During the process of the extinguishing agent being drawn and sprayed by the high-pressure pump 22, the pressure inside the storage tank 2 will decrease accordingly. At this time, the pressure sensor 23 inside the storage tank 2 will feed back the pressure change signal to the main controller 1. The main controller 1 will activate the gas replenishment component according to the preset pressure threshold. The gas replenishment component includes a nitrogen tank 51 and a pressure regulating valve 52. The pressure regulating valve 52 is connected to the nitrogen tank 51 and the storage tank 2 respectively, and is electrically connected to the main controller 1. When the perfluorohexanone extinguishing agent 21 in the storage tank 2 is drawn, causing a pressure drop, the main controller 1 will instruct the pressure regulating valve 52 to open, so that the dry, inert nitrogen in the nitrogen tank 51 will replenish the storage tank 2.

[0067] Unlike existing technologies that rely on a breathing valve to draw in outside air, this system uses nitrogen replenishment. This effectively prevents water vapor in the outside air from contacting and reacting with the perfluorohexanone extinguishing agent 21, thus preventing the formation of acidic substances, protecting the storage tank 2 from corrosion, and ensuring the purity and extinguishing effectiveness of the extinguishing agent. This replenishment method eliminates the problems of extinguishing agent degradation and equipment damage caused by the intake of humid air in traditional systems. Furthermore, this system uses an atmospheric pressure storage tank 2 in conjunction with a pump set for pressurization, avoiding the cumbersome requirement of a three-year inspection for special equipment in traditional high-pressure gas cylinder systems, reducing system maintenance and operating costs. Integrated control of all components by the main controller 1 ensures efficient and reliable system operation, guaranteeing rapid and effective fire suppression in the event of a fire.

[0068] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0069] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A novel pump-type perfluorohexanone gas fire extinguishing system, characterized in that, include: Main controller; A storage tank for storing perfluorohexanone fire extinguishing agent, the storage tank being connected to a high-pressure pump, the high-pressure pump being electrically connected to the main controller; A pipeline network connected to the high-pressure pump, wherein multiple nozzles are spaced apart on the pipeline network; A detection component, electrically connected to the main controller, is used to detect the ambient temperature and smoke signals at the fire scene and transmit the signals to the main controller. The gas replenishment component includes a nitrogen tank and a pressure regulating valve. The pressure regulating valve is connected to the nitrogen tank and the storage tank respectively, and is electrically connected to the main controller. When the perfluorohexanone extinguishing agent in the storage tank is extracted, the pressure regulating valve opens to replenish the nitrogen in the nitrogen tank into the storage tank.

2. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 1, characterized in that, The storage tank is made of stainless steel and its inner wall is coated with PTFE material.

3. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 2, characterized in that, The storage tank is equipped with a pressure sensor, which is electrically connected to the main controller.

4. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 1, characterized in that, Two high-pressure pumps are provided, and each of the two high-pressure pumps is connected to a gate valve between itself and the storage tank.

5. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 4, characterized in that, The high-pressure pump is also electrically connected to a pump group controller, which is electrically connected to the main controller.

6. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 1, characterized in that, A one-way valve and a solenoid selector valve are also connected between the pipeline network and the high-pressure pump.

7. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 1, characterized in that, The detection components include a heat detector and a smoke detector.

8. The novel pump-type perfluorohexanone gas fire extinguishing system according to claim 1, characterized in that, The main controller is also electrically connected to an audible and visual alarm.

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