Fire extinguishing system

Abstract

The fire extinguishing system comprises a fire extinguishing module and a thermoelectric power generation module, the fire extinguishing module comprises a spraying device, the spraying device comprises a water supply pipeline, a valve and a nozzle, the water supply pipeline is connected with the nozzle, and the valve is arranged on the water supply pipeline; the thermoelectric power generation module comprises a hot-end heat conduction piece, a thermoelectric power generation piece and a cold-end heat dissipation piece, the thermoelectric power generation piece is arranged between the hot-end heat conduction piece and the cold-end heat dissipation piece, the hot-end heat conduction piece is arranged in a monitoring area, the cold-end heat dissipation piece comprises needle column type cooling fins, and the needle column type cooling fins are arranged in a water supply pipeline; the output end of the thermoelectric power generation module is electrically connected with the valve, and the thermoelectric power generation part is used for generating an electric signal through the temperature difference between the hot end heat conduction part and the cold end heat dissipation part and outputting the electric signal to the valve so that the valve can be opened.

Description

Technical Field

[0001] This application relates to the field of fire safety technology, and in particular to a fire extinguishing system. Background Technology

[0002] In the field of fire suppression technology, self-powered systems based on thermoelectric power generation have attracted attention due to their ability to operate continuously without external power sources. These systems typically utilize temperature differences to directly convert heat energy into electrical energy, thereby powering critical components. However, their practical application still faces significant technical bottlenecks: the power generation efficiency of thermoelectric modules is highly dependent on the temperature difference between the hot and cold ends. In the early stages of a fire or in a localized fire, sufficient heat flux density may not be available at the hot end, while the slow heat dissipation at the cold end can lead to an excessively small temperature difference, causing a sharp drop in output voltage or even failure to supply power, thus hindering reliable fire suppression actions. Summary of the Invention

[0003] This application aims to provide a fire extinguishing system that can improve the reliability of fire extinguishing systems.

[0004] This application provides a fire extinguishing system, including: A fire extinguishing module, the fire extinguishing module including a sprinkler device, the sprinkler device including a water supply pipeline, a valve and a nozzle, the water supply pipeline being connected to the nozzle, and the valve being installed on the water supply pipeline; A thermoelectric power generation module includes a hot-end heat-conducting component, a thermoelectric power generation component, and a cold-end heat dissipation component. The thermoelectric power generation component is disposed between the hot-end heat-conducting component and the cold-end heat dissipation component. The hot-end heat-conducting component is located within a monitoring area. The cold-end heat dissipation component includes a pin-type heat sink, which is disposed within a water supply pipeline to cool the pin-type heat sink using water within the pipeline. The output end of the thermoelectric power generation module is electrically connected to a valve. The thermoelectric power generation component generates an electrical signal using the temperature difference between the hot-end heat-conducting component and the cold-end heat dissipation component and outputs the electrical signal to the valve, causing the valve to open.

[0005] According to some embodiments of this application, the pin-type heat sink includes: substrate; Multiple heat dissipation columns are disposed on the substrate. Multiple mounting holes are provided on the water supply pipeline. Each mounting hole corresponds to one of the multiple heat dissipation columns. The multiple heat dissipation columns extend into the water supply pipeline through the multiple mounting holes.

[0006] According to some embodiments of this application, the material of the plurality of heat dissipation pillars is copper.

[0007] According to some embodiments of this application, the thermoelectric power generation module is installed on the water supply pipeline via a bracket.

[0008] According to some embodiments of this application, it also includes: An alarm module is electrically connected to the output terminal of the thermoelectric generator module.

[0009] According to some embodiments of this application, it also includes: A fire monitoring module, which is electrically connected to the alarm module.

[0010] According to some embodiments of this application, the fire monitoring module includes a temperature sensor.

[0011] According to some embodiments of this application, it also includes: An energy storage module is electrically connected to the fire monitoring module and the thermoelectric generator module.

[0012] According to some embodiments of this application, a boost module is provided between the thermoelectric power generation module and the energy storage module.

[0013] According to some embodiments of this application, the valve is a solenoid valve.

[0014] In this embodiment, by placing the pin-type heat sink inside the water supply pipeline, the water flow around the pin-type heat sink will generate vortices and separation, which strongly disrupts the laminar boundary layer of the water. The continuous turbulence makes the hot and cold fluids mix more thoroughly, and always maintains the low-temperature water in contact with the hot surface of the pin-type heat sink, which greatly improves the convective heat transfer coefficient, thereby accelerating the heat dissipation speed. This allows a sufficient temperature difference to be formed between the hot end heat conduction component and the cold end heat dissipation component. The thermoelectric generator uses the temperature difference to generate an electrical signal and outputs the electrical signal to the valve, causing the valve to open and the sprinkler head to spray water to extinguish the fire, thus improving the reliability of the fire extinguishing system.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 Functional block diagram of an embodiment of the fire extinguishing system provided in this application; Figure 2 This is a first connection diagram of an embodiment of the fire extinguishing system provided in this application; Figure 3 This is a second connection diagram of an embodiment of the fire extinguishing system provided in this application; Figure 4 A first structural diagram of the thermoelectric power generation module provided in this application for the fire extinguishing system embodiment; Figure 5 A second structural diagram of the thermoelectric power generation module in the embodiment of the fire extinguishing system provided in this application.

[0017] Figure label: Fire extinguishing module 100, water supply pipeline 110, valve 120, nozzle 130, water pump 140, thermoelectric generator module 200, hot end heat conduction component 210, thermoelectric generator component 220, cold end heat dissipation component 230, bracket 240, alarm module 300, fire monitoring module 400, temperature sensor 410, energy storage module 500. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0020] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] The following is based on Figures 1 to 5 This application describes a fire extinguishing system provided in an embodiment.

[0023] This application provides a fire extinguishing system, such as... Figure 1 As shown, it includes: Fire extinguishing module 100, which includes a sprinkler system, such as... Figures 2 to 3 As shown, the sprinkler device includes a water supply pipe 110, a valve 120 and a nozzle 130. The water supply pipe 110 is connected to the nozzle 130, and the valve 120 is installed on the water supply pipe 110. Thermoelectric module 200, such as Figures 4 to 5 As shown, the thermoelectric generator module 200 includes a hot-end heat-conducting component 210, a thermoelectric generator 220, and a cold-end heat dissipation component 230. The thermoelectric generator 220 is disposed between the hot-end heat-conducting component 210 and the cold-end heat dissipation component 230. The hot-end heat-conducting component 210 is disposed within the monitoring area. The cold-end heat dissipation component 230 includes a pin-type heat sink, which is disposed within the water supply pipe 110 to utilize the water within the water supply pipe 110 to cool the pin-type heat sink. The output end of the thermoelectric generator module 200 is electrically connected to a valve 120. The thermoelectric generator 220 is used to generate an electrical signal using the temperature difference between the hot-end heat-conducting component 210 and the cold-end heat dissipation component 230, and outputs the electrical signal to the valve 120, causing the valve 120 to open.

[0024] In this embodiment, by placing the pin-type heat sink inside the water supply pipe 110, the water flow around the pin-type heat sink will generate vortices and separation, which strongly disrupts the laminar boundary layer of the water. The continuous turbulence makes the hot and cold fluids mix more fully, and always maintains the low temperature water in contact with the hot surface of the pin-type heat sink, which greatly improves the convective heat transfer coefficient and thus accelerates the heat dissipation speed. This makes it possible to form a sufficient temperature difference between the hot end heat conduction component 210 and the cold end heat dissipation component 230. The thermoelectric generator 220 uses the temperature difference to generate an electrical signal and outputs the electrical signal to the valve 120, which causes the valve 120 to open and the nozzle 130 to spray water to extinguish the fire, thereby improving the reliability of the fire extinguishing system.

[0025] In some embodiments of this application, valve 120 is a solenoid valve.

[0026] In some embodiments of this application, such as Figures 2 to 3 As shown, the water supply pipeline 110 is connected to the water storage device, and a water pump 140 is installed on the water supply pipeline 110 to drive the water flow in the water supply pipeline 110.

[0027] In some embodiments of this application, the thermoelectric generator 220 in the thermoelectric generator module 200 includes multiple thermoelectric generators connected in series, and the multiple thermoelectric generators can generate enough electrical energy to supply power.

[0028] In some embodiments of this application, thermoelectric power generation is a novel power generation technology developed based on the Seebeck effect. It has the advantages of low internal resistance, high temperature resistance, and long lifespan. In the presence of a temperature difference, the unique high-temperature energy in a fire can be fully utilized to convert into high-grade electrical energy, enabling fire suppression while monitoring the fire. The thermoelectric generator 220, as the core device of the thermoelectric generator module 200, works by connecting two different thermoelectric conversion materials, P-type and N-type, in series with a highly conductive material, with a load connected at both ends. When a temperature difference occurs at the two ends, the difference in hole and electron density creates a potential difference, realizing the conversion of thermal energy into electrical energy. When a fire occurs, the hot-end heat-conducting component 210 transfers heat to one end of the thermoelectric generator 220, while the cold-end heat dissipation component 230 at the other end dissipates heat, ensuring a sufficient temperature difference for the thermoelectric generator 220 to generate an electrical signal.

[0029] The fire extinguishing system provided in this application embodiment features self-powered operation, rapid response and high sensitivity, strong anti-interference capability, simple structure and high reliability. Thermoelectric power generation is a green, environmentally friendly and pollution-free power generation method, with advantages such as simple and durable power generation structure, no noise from traditional generator operation, and long service life. It can save energy and reduce emissions, making full use of energy. At the same time, based on the principle of thermoelectric power generation, the fire extinguishing system will not stop working when the fire is not completely extinguished (secondary combustion caused by fire extinguishing), in order to cope with the situation of sudden power outage or sensor fatigue failure, making the operation more stable and reliable. In addition, by making full use of the water in the water supply pipe 110 as a cooling medium, the pin-shaped heat sink of the thermoelectric power generation module 200 is cleverly arranged inside the water supply pipe 110. During the spraying process, the flow of water accelerates the cooling effect and improves the efficiency of thermoelectric power generation.

[0030] According to some embodiments of this application, such as Figures 4 to 5 As shown, the pin-type heat sink includes: substrate; Multiple heat dissipation columns are set on the base plate, and multiple mounting holes are provided on the water supply pipe 110. The multiple mounting holes correspond one-to-one with the multiple heat dissipation columns, and the multiple heat dissipation columns extend into the water supply pipe 110 through the multiple mounting holes.

[0031] In this embodiment, the substrate is in contact with the thermoelectric generator 220, and multiple heat dissipation columns extend into the water supply pipe 110 through multiple mounting holes. The water in the water supply pipe 110 flows through the multiple heat dissipation columns to exchange heat, carrying away heat and improving the heat dissipation speed.

[0032] The pin-type heat sink's array of heat dissipation columns has a similar effect on obstructing and disturbing water flow in all directions, making it insensitive to the direction of water flow. Even if the water flow direction changes or becomes uncertain, it can maintain stable and efficient heat dissipation performance, offering greater fault tolerance. When installed in water-filled pipes, pin-type heat sinks need to withstand water pressure and potential water hammer effects. The pin-type structure of the pin-type heat sink is much more robust than the thin and long plate-fin structure, less prone to deformation or breakage, ensuring long-term reliability. The narrow flow channels between plate-fin heat sinks are easily clogged by impurities, scale, or particles in the water. Once clogged, flow resistance increases dramatically, and heat dissipation performance drops sharply. The flow channels formed by the heat dissipation column array of the pin-type heat sink are a complex and interconnected mesh structure. Even if some areas are partially blocked, the water flow can find other paths to bypass it, resulting in a relatively slow increase in overall flow resistance, stronger anti-clogging capabilities, and better maintainability.

[0033] In some embodiments of this application, the multiple heat dissipation columns of the pin-type heat sink are sealed to the multiple mounting holes to prevent water leakage from the water pipe. For example, the water supply pipe 110 is a cast iron pipe, and the pin-type heat sink is welded to the cast iron pipe to achieve a sealed connection.

[0034] In some embodiments of this application, the material of the multiple heat dissipation pillars is copper.

[0035] In this embodiment, multiple heat dissipation pillars are made of copper, which has high thermal conductivity, enabling the heat dissipation pillars to dissipate heat efficiently.

[0036] In some embodiments of this application, such as Figures 4 to 5 As shown, the thermoelectric power generation module 200 is installed on the water supply pipeline 110 via a bracket 240.

[0037] In some embodiments of this application, the bracket 240 is an L-shaped bracket that can fix the thermoelectric generator module 200 on the water supply pipe 110 and can clamp the thermoelectric generator 220 between the hot end heat conduction component 210 and the cold end heat dissipation component 230.

[0038] In some embodiments of this application, such as Figures 2 to 3 As shown, it also includes: Alarm module 300 is electrically connected to the output terminal of thermoelectric generator module 200.

[0039] In this embodiment, when a fire occurs, the output terminal of the thermoelectric generator module 200 outputs an electrical signal to the control terminal of the alarm module 300, and the alarm module 300 issues an alarm to provide a fire warning.

[0040] In some embodiments of this application, the alarm module 300 employs an audible and visual alarm. The high-frequency, high-volume buzzing or pulse alarm sound of the audible and visual alarm can penetrate walls and partitions, effectively alerting people even in another room, with their backs to the alarm, or in environments with extremely bright light. The high brightness and high-frequency flashing light of the audible and visual alarm provides a crucial second layer of protection, even in noisy environments or for people with hearing impairments, ensuring that the alarm information is received.

[0041] In some embodiments of this application, such as Figure 1 As shown, it also includes: Fire monitoring module 400, fire monitoring module 400 is electrically connected to alarm module 300, fire monitoring module 400 is electrically connected to valve 120.

[0042] In this embodiment, the fire monitoring module 400 is used to detect whether a fire has occurred in the monitored area. If a fire occurs, it controls the alarm module 300 to issue an alarm and controls the solenoid valve to open, so that the sprinkler head 130 sprays water to extinguish the fire.

[0043] In some embodiments of this application, such as Figures 2 to 3 As shown, the fire monitoring module 400 includes a temperature sensor 410, which detects the temperature of the monitored area to determine whether a fire has occurred. The sensing temperature of the temperature sensor 410 is typically between 57°C and 93°C. This range is set based on the general temperature changes during a fire to ensure timely activation of the solenoid valve in the early stages of a fire. Since objects emit infrared radiation when their temperature exceeds absolute zero, and all known objects exceed this temperature, the fire monitoring module 400 uses an infrared temperature sensor to measure the temperature of the target. This sensor receives infrared radiation from the object and converts it into a standard signal output through the sensor, optical system, and electronic circuitry. It can calculate the surface temperature of an object without contact, simply by measuring the intensity of the infrared radiation emitted by the target. Because temperatures in fire scenes are generally high, a non-contact infrared thermometer is chosen for detecting the temperature of fire sources in the surrounding environment of the building, such as the IRTT151G-113 non-contact infrared temperature sensor.

[0044] In some embodiments of this application, such as Figure 1 As shown, it also includes: Energy storage module 500, energy storage module 500 is electrically connected to fire monitoring module 400, and energy storage module 500 is electrically connected to thermoelectric generator module 200.

[0045] In this embodiment, the thermoelectric power generation module 200 generates electricity using thermoelectric difference, which can charge the energy storage module 500. The energy storage module 500 stores electrical energy and can also supply power to the fire monitoring module 400. The energy storage module 500 is a battery.

[0046] In some embodiments of this application, a boost module is provided between the thermoelectric power generation module 200 and the energy storage module 500.

[0047] In this embodiment, the electrical signal generated by the thermoelectric generator module 200 is boosted by a boost module to charge the energy storage module 500. The boost module can be a DC-DC circuit.

[0048] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A fire extinguishing system, characterized in that, include: A fire extinguishing module, the fire extinguishing module including a sprinkler device, the sprinkler device including a water supply pipeline, a valve and a nozzle, the water supply pipeline being connected to the nozzle, and the valve being installed on the water supply pipeline; A thermoelectric power generation module includes a hot-end heat-conducting component, a thermoelectric power generation component, and a cold-end heat dissipation component. The thermoelectric power generation component is disposed between the hot-end heat-conducting component and the cold-end heat dissipation component. The hot-end heat-conducting component is located within a monitoring area. The cold-end heat dissipation component includes a pin-type heat sink, which is disposed within a water supply pipeline to cool the pin-type heat sink using water within the pipeline. The output end of the thermoelectric power generation module is electrically connected to a valve. The thermoelectric power generation component generates an electrical signal using the temperature difference between the hot-end heat-conducting component and the cold-end heat dissipation component and outputs the electrical signal to the valve, causing the valve to open.

2. The fire extinguishing system according to claim 1, characterized in that, The pin-type heat sink includes: substrate; Multiple heat dissipation columns are disposed on the substrate. Multiple mounting holes are provided on the water supply pipeline. Each mounting hole corresponds to one of the multiple heat dissipation columns. The multiple heat dissipation columns extend into the water supply pipeline through the multiple mounting holes.

3. The fire extinguishing system according to claim 2, characterized in that: The material of the multiple heat dissipation columns is copper.

4. The fire extinguishing system according to claim 1, characterized in that: The thermoelectric power generation module is installed on the water supply pipeline via a bracket.

5. The fire extinguishing system according to claim 1, characterized in that, Also includes: An alarm module is electrically connected to the output terminal of the thermoelectric generator module.

6. The fire extinguishing system according to claim 5, characterized in that, Also includes: A fire monitoring module, which is electrically connected to the alarm module.

7. The fire extinguishing system according to claim 6, characterized in that: The fire monitoring module includes a temperature sensor.

8. The fire extinguishing system according to claim 6, characterized in that, Also includes: An energy storage module is electrically connected to the fire monitoring module and the thermoelectric generator module.

9. The fire extinguishing system according to claim 8, characterized in that: A boost module is provided between the thermoelectric power generation module and the energy storage module.

10. The fire extinguishing system according to claim 1, characterized in that: The valve is a solenoid valve.

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