Multi-node temperature-sensing on-demand dispensing fire extinguishing device

Abstract

The utility model discloses a kind of multi-node temperature-sensing on-demand distribution fire extinguishing devices, comprising: support and installation box, the installation box is dispersedly arranged in monitoring area, temperature-sensing detection module, three-way solenoid valve and water jet head are equipped on the installation box;Temperature-sensing detection module is built-in self-checking module, wireless communication module and fire sensor, the self-checking module includes signal detection component, sensor detection component and voltage detection component, and the self-checking module is connected with wireless communication module communication;A kind of multi-node temperature-sensing on-demand distribution fire extinguishing device, by the installation box dispersedly arranged in monitoring area and integrated temperature-sensing detection module and fire sensor, real-time calibration of signal stability, sensor accuracy and power supply voltage is matched with self-checking module, greatly improve the accuracy of fire condition determination, effectively reduce false alarm risk.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically a multi-node temperature-sensing on-demand fire extinguishing device. Background Technology

[0002] Multi-node temperature-sensing on-demand fire extinguishing devices are core fire protection equipment in large spaces such as industrial plants and data centers. They monitor fire conditions through decentralized temperature-sensing nodes and control the spraying of extinguishing media through valve groups, enabling rapid response to initial fires and preventing the spread of fire that could cause significant losses.

[0003] First, existing devices generally lack real-time self-testing and monitoring capabilities. Faults such as disconnected lines and sensor failures at temperature sensing nodes cannot be proactively warned of. They can only rely on manual periodic inspection and maintenance, which is inefficient. Maintenance personnel need to disassemble and inspect each node, which is not only cumbersome but also increases maintenance costs. This makes it difficult to detect safety hazards in a timely manner, creating a fire detection blind spot in the area. When a fire occurs, the system cannot be triggered to respond, missing the best opportunity to extinguish the fire.

[0004] Secondly, existing devices can cause a large waste of extinguishing media due to mis-triggering of a single node or triggering of a full-scale extinguishing event by a single node, and can also damage equipment in non-fire areas.

[0005] To address these issues, this invention provides a multi-node temperature-sensing, on-demand fire extinguishing device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a multi-node temperature-sensing, on-demand fire extinguishing device, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-node temperature-sensing on-demand fire extinguishing device, comprising: a bracket and a mounting box, wherein the mounting boxes are distributed in the monitoring area, and the mounting boxes are equipped with a temperature-sensing detection module, a three-way solenoid valve and a spray head; The temperature sensing module has a built-in self-test module and a wireless communication module. The self-test module includes a signal detection component, a sensor detection component, and a voltage detection component. The self-test module is connected to the wireless communication module, and the wireless communication module is connected to the early warning module. The bracket is equipped with a main controller, which is electrically connected to the water pump and the three-way solenoid valve.

[0008] Furthermore, the wireless communication module adopts a ZigBee module, and the temperature detection modules of multiple mounting boxes are networked through the ZigBee module. The temperature detection module is equipped with a temperature sensor.

[0009] Furthermore, a water tank is installed on the support, and a water injection pipe is installed on the water tank. The bottom of the water tank is connected to a water pump through a pipe, and a valve is installed on the pipe. The end of the water pump away from the water tank is connected to the main pipe, and a branch pipe is connected to the main pipe. A first solenoid valve is installed on the branch pipe, and the first solenoid valve is connected to a three-way solenoid valve through a first water pipe.

[0010] Furthermore, the early warning module includes alarm lights and a buzzer, and the main controller is electrically connected to the fire sensors.

[0011] Furthermore, the main controller has a preset temperature threshold. When the temperature detection module of any installation box detects that the temperature exceeds the threshold, the main controller controls the three-way solenoid valve corresponding to that installation box to open and starts the water pump, while triggering the early warning module.

[0012] Furthermore, the mounting box is fixed to the roof with bolts, and the bracket is equipped with an electrical control box, in which the main controller is integrated; the sprinkler head and the three-way solenoid valve are detachably connected for easy replacement and maintenance.

[0013] Furthermore, the self-test module component includes an operational amplifier, a first microcontroller, and a digital isolation chip. The operational amplifier is signal-connected to the digital isolation chip; the digital isolation chip is electrically connected to the first microcontroller to transmit the isolated signal to the first microcontroller for stability analysis; the first microcontroller is signal-connected to the wireless communication module to transmit the signal stability verification result to the wireless communication module.

[0014] Furthermore, the sensor detection component includes a digital-to-analog converter chip, an analog-to-digital converter chip, a second microcontroller, and a relay. The second microcontroller is signal-connected to the digital-to-analog converter chip to send a standard verification signal generation command to the digital-to-analog converter chip. The digital-to-analog converter chip is electrically connected to the relay, and the relay is electrically connected to the second microcontroller, which controls the switching of the relay. The analog-to-digital converter chip is signal-connected to the second microcontroller to transmit the sensor's feedback value of the standard verification signal to the second microcontroller for accuracy comparison.

[0015] Furthermore, the voltage detection component includes a precision voltage divider resistor, an analog-to-digital converter chip, a TVS transient voltage suppressor diode, and a third microcontroller. The TVS transient voltage suppressor diode is electrically connected to the power supply and is used to absorb transient overvoltages in the power supply circuit. The precision voltage divider resistor is electrically connected to the TVS transient voltage suppressor diode to divide the power supply voltage. The precision voltage divider resistor is electrically connected to the analog-to-digital converter chip, and the analog-to-digital converter chip is signal-connected to the third microcontroller to transmit the divided voltage signal to the third microcontroller for voltage status determination.

[0016] Furthermore, the main controller adopts the Gulf GST-QKP01.

[0017] Beneficial Effects: This utility model provides a multi-node temperature-sensing, on-demand fire extinguishing device. Compared with the prior art, it has the following beneficial effects: (1) A multi-node temperature sensing on-demand fire extinguishing device, by dispersing the installation box in the monitoring area and integrating the temperature sensing module and fire sensor, and matching the self-test module to verify the signal stability, sensor accuracy and power supply voltage in real time, greatly improves the accuracy of fire judgment and effectively reduces the risk of false alarm.

[0018] (2) A multi-node temperature sensing on-demand fire extinguishing device, which realizes multi-node network communication and centralized coordination with the main controller through ZigBee module, and opens the corresponding branch pipe valves and three-way solenoid valves in the fire area, accurately locates the fire and delivers the fire extinguishing medium in a directional manner, avoids the waste of resources caused by the full-area start-up, realizes the on-demand distribution of the fire extinguishing medium, and improves the fire extinguishing efficiency.

[0019] (3) A multi-node temperature sensing on-demand fire extinguishing device, which clearly distinguishes the system status by using blue flashing to indicate faults, red flashing and buzzer alarm in the early warning module to indicate fire, facilitates quick location of fault nodes or fire areas, shortens emergency response time, and the detachable connection of the sprinkler head and the bolt fixing method of the mounting box reduce the maintenance difficulty and later operation and maintenance cost of the device, and improve the overall practicality and reliability of the system. Attached Figure Description

[0020] Figure 1 This is a side view of the overall device structure of this utility model; Figure 2 This is a structural diagram of the overall device of this utility model; Figure 3 This is a side view of the mounting box structure of this utility model; Figure 4 This is a diagram of the temperature sensing module of this utility model; Figure 5 This is the utility model Figure 1 A partial side view of structure A.

[0021] In the diagram: 1. Bracket; 2. Water tank; 3. Water pump; 4. Main pipe; 5. Branch pipe; 6. First water pipe; 7. First solenoid valve; 8. Mounting box; 9. Three-way solenoid valve; 10. Sprinkler head; 11. Temperature detection module; 111. Self-test module; 1111. Signal detection component; 1112. Sensor detection component; 1113. Voltage detection component; 112. Wireless communication module; 114. Fire sensor; 115. Early warning module; 1151. Alarm light; 12. Electrical control box; 13. Main controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figure 1-5 A multi-node temperature-sensing on-demand fire extinguishing device, comprising a bracket 1 and a mounting box 8, wherein the mounting box 8 is distributed in the monitoring area and is equipped with a temperature-sensing detection module 11, a three-way solenoid valve 9 and a spray head 10; The temperature detection module 11 has a built-in self-test module 111, a wireless communication module 112, and a fire sensor 114. The self-test module 111 includes a signal detection component 1111, a sensor detection component 1112, and a voltage detection component 1113. The self-test module 111 is communicatively connected to the wireless communication module 112, and the wireless communication module 112 is communicatively connected to the early warning module 115. The bracket 1 is equipped with a main controller 13, which is electrically connected to the water pump 3 and the three-way solenoid valve 9, respectively. The self-test module 111 is electrically connected to the fire sensor 114.

[0024] The wireless communication module 112 adopts a ZigBee module, and multiple temperature detection modules 11 of the mounting boxes 8 are networked through the ZigBee module. The temperature detection module 11 is equipped with a temperature sensor.

[0025] A water tank 2 is installed on the support 1. A water injection pipe is installed on the water tank 2. The bottom end of the water tank 2 is connected to the water pump 3 through a pipe, and a valve is installed on the pipe. The end of the water pump 3 away from the water tank 2 is connected to the main pipe 4. A branch pipe 5 is connected to the main pipe 4. A first solenoid valve 7 is installed on the branch pipe 5. The first solenoid valve 7 is connected to a three-way solenoid valve 9 through the first water pipe 6.

[0026] The warning module 115 includes an alarm light 1151 and a buzzer, and the main controller 13 is electrically connected to the fire sensor 114.

[0027] The main controller 13 has a preset temperature threshold, the alarm light 1151 is fixedly connected to the mounting box 8, and the fire sensor 114 is fixedly connected to the mounting box 8.

[0028] The mounting box 8 is fixed to the roof with bolts. The bracket 1 is equipped with an electrical control box 12. The main controller 13 is fixedly connected to the bracket 1. The water spray head 10 is detachably connected to the three-way solenoid valve 9.

[0029] Work process: Fire sensor 114 synchronously monitors ambient smoke concentration; The signal detection component 1111 verifies the stability of the temperature / smoke signal, the sensor detection component 1112 individually detects the accuracy of the fire sensor 114, and the voltage detection component 1113 monitors the power supply voltage of the module. Self-test data and environmental monitoring data are uploaded to the main controller 13 in real time via the ZigBee module. When a fault occurs, the information is transmitted to the main controller 13 via the wireless communication module 112 and the alarm light 1151 flashes blue to indicate which installation box 8 has detected a fault.

[0030] When the temperature detection module 11 of a certain installation box 8 detects that the temperature is too high, and the fire sensor 114 simultaneously detects that the smoke concentration is too high, a fire signal is triggered, causing the alarm light 1151 to flash red. Targeted early warning activated: The main controller 13 sends an early warning command to the installation box 8 in the fire area through the ZigBee module. The buzzer of the early warning module 115 on the installation box 8 is activated and emits a high-decibel alarm sound to prompt personnel to evacuate. Open the valve on the bottom pipe of water tank 2 and start water pump 3. The extinguishing medium in water tank 2 enters the main pipe 4 under the power of water pump 3. Based on the location of the fire area, only the first solenoid valve 7 on the corresponding branch pipe 5 is opened to ensure that the extinguishing medium is delivered in a directional manner to the installation box 8 in the fire area.

[0031] Targeted spray fire suppression: The main controller 13 controls the opening of the three-way solenoid valve 9 in the fire zone installation box 8. The extinguishing medium is directed to the fire zone through the main pipeline 4, branch pipeline 5, first solenoid valve 7, first water pipe 6 and three-way solenoid valve 9, and finally sprayed in a directional manner through the sprinkler head 10 which is detachably connected to the three-way valve. In non-fire areas, the installation box 8 keeps the three-way solenoid valve 9 closed to avoid wasting extinguishing media and achieve on-demand distribution.

[0032] The signal detection component 1111, sensor detection component 1112 and voltage detection component 1113 all adopt mature technologies known in the field. Their core functions and operating logic have been widely used in industrial automation, sensor technology and other fields, so their principles will not be described in detail.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-node temperature-sensing, on-demand fire extinguishing device, characterized in that, include: The bracket (1) and the mounting box (8) are distributed in the monitoring area. The mounting box (8) is equipped with a temperature detection module (11), a three-way solenoid valve (9) and a water spray head (10). The temperature sensing module (11) has a built-in self-test module (111), wireless communication module (112) and fire sensor (114). The self-test module (111) includes a signal detection component (1111), a sensor detection component (1112) and a voltage detection component (1113). The self-test module (111) is connected to the wireless communication module (112), and the wireless communication module (112) is connected to the early warning module (115). The bracket (1) is equipped with a main controller (13), which is electrically connected to the water pump (3) and the three-way solenoid valve (9). The self-test module (111) is electrically connected to the fire sensor (114).

2. The multi-node temperature-sensing on-demand fire extinguishing device according to claim 1, characterized in that: The wireless communication module (112) adopts a ZigBee module, and the temperature detection modules (11) of multiple mounting boxes (8) are networked through the ZigBee module. The temperature detection module (11) is equipped with a temperature sensor.

3. The multi-node temperature-sensing on-demand fire extinguishing device according to claim 1, characterized in that: A water tank (2) is provided on the bracket (1). A water injection pipe is provided on the water tank (2). The bottom end of the water tank (2) is connected to a water pump (3) through a pipe. A valve is provided on the pipe. The end of the water pump (3) away from the water tank (2) is connected to a main pipe (4). A branch pipe (5) is connected to the main pipe (4). A first electromagnetic valve (7) is provided on the branch pipe (5). The first electromagnetic valve (7) is connected to a three-way electromagnetic valve (9) through a first water pipe (6).

4. The multi-node temperature-sensing on-demand fire extinguishing device according to claim 3, characterized in that: The warning module (115) includes an alarm light (1151) and a buzzer, and the main controller (13) is electrically connected to the fire sensor (114).

5. A multi-node temperature-sensing, on-demand fire extinguishing device according to claim 4, characterized in that: The main controller (13) has a preset temperature threshold, the alarm light (1151) is fixedly connected to the mounting box (8), and the fire sensor (114) is fixedly connected to the mounting box (8).

6. A multi-node temperature-sensing, on-demand fire extinguishing device according to claim 5, characterized in that: The mounting box (8) is fixed to the roof with bolts. The bracket (1) is equipped with an electrical control box (12). The main controller (13) is fixedly connected to the bracket (1). The spray head (10) is detachably connected to the three-way solenoid valve (9).

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