Intelligent fire extinguishing device for hazardous chemical storage area

Abstract

The utility model relates to the field of dangerous chemical article fire safety, concretely relates to a dangerous chemical article storage area intelligent fire extinguishing device, including fire control connecting pipe, as the main support structure of device, the outside of fire control connecting pipe is fixed from left to right and installed with catalytic combustion formula sensor, electrochemical sensor, photoionization sensor, double wave band infrared flame detector and laser smoke sensor in proper order. Through a variety of sensors to the dangerous chemical article storage area monitoring, the fire extinguishing agent is shunted to multiple groups of oblique flow guide strips through conical support disc, and the flow guide strip is close to the inner wall of shell and guides the fire extinguishing agent to form spiral, enhances the injection pressure, and is evenly distributed to each spray head through the multichannel connector, makes the spray head rotate, ensures that the fire extinguishing agent covers no dead angle, the shell and the sensor synergistic effect, and the pressure is different and opens different passages, both adapts to different fire degree, and also avoids the traditional fixed passage because of the flow matching imbalance and leads to the problem that the fire is not completely extinguished or medium is wasted, and the fire extinguishing efficiency and resource optimization are considered.

Description

Technical Field

[0001] This utility model relates to the field of fire safety for hazardous chemicals, specifically to an intelligent fire extinguishing device for hazardous chemical storage areas. Background Technology

[0002] Hazardous chemical storage areas (such as chemical tank areas, hazardous materials warehouses, and laboratory chemical storage rooms) contain flammable, explosive, and toxic media. In the event of a leak, fire, or explosion, they can easily cause large-scale casualties and environmental damage. Therefore, fire safety protection in these areas places extremely high demands on the response speed, coverage, and adaptability of fire extinguishing equipment.

[0003] Traditional devices often rely on a single sensor (such as a smoke detector or flame detector), making it difficult to comprehensively identify hazardous chemical situations. Furthermore, traditional devices use a fixed channel design, and the flow rate of the extinguishing agent is not adjustable. When facing small initial fires, excessive spraying can lead to waste of the medium, including dry powder residue that contaminates equipment and foam liquid that damages the environment.

[0004] Therefore, it is necessary to invent an intelligent fire extinguishing device for hazardous chemical storage areas to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent fire extinguishing device for hazardous chemical storage areas. By setting up a flow control structure with multi-type sensor collaborative monitoring and dynamic adjustment of spring clips, it can solve the problems in the prior art, such as the incomplete identification of hazardous chemical hazards caused by the reliance on a single sensor in traditional devices, and the waste of extinguishing agent due to the fixed channel design that makes the extinguishing agent flow rate unsuitable for the fire situation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent fire extinguishing device for hazardous chemical storage areas, comprising; The fire-fighting connection pipe serves as the main support structure of the device. From left to right, a catalytic combustion sensor, an electrochemical sensor, a photoionization sensor, a dual-band infrared flame detector, and a laser smoke sensor are fixedly installed on the outside of the fire-fighting connection pipe. The transmission assembly includes a housing, which is fixedly connected to the outlet end of the fire-fighting connection pipe. A multi-channel connector is rotatably connected to the lower part of the housing. A connecting column is fixedly connected to the middle of the inner wall of the multi-channel connector. A support plate is fixedly connected to the top of the connecting column inside the housing. Multiple sets of guide strips are fixedly connected around the upper part of the support plate. A nozzle is fixedly installed on the outside of the multi-channel connector through an adjustment assembly.

[0007] Preferably, the adjustment component includes a connector, which is sleeved on the outside of the multi-channel connector. A threaded seat is fixedly connected to the outer periphery of the nozzle near the multi-channel connector. The connector is threadedly connected to the threaded seat. An installation groove is formed on the inner wall of the multi-channel connector near the nozzle. A spring is inserted into the inner wall of the installation groove. Multiple sets of springs are provided, with adjacent sets of springs arranged symmetrically. A sealing ring is provided on the side of the multi-channel connector that connects to the nozzle.

[0008] Preferably, the spring is configured in an L-shape.

[0009] Preferably, the outer side of the connector is configured as a regular hexagon.

[0010] Preferably, a sealing element is fixedly connected to the opposite side of each of the two adjacent sets of spring pieces, and the sealing elements fit together.

[0011] Preferably, the upper part of the support plate is cone-shaped, the guide strip is inclined, and the outer side of the upper part of the guide strip is close to the upper inner wall of the outer shell.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention monitors the hazardous chemical storage area using multiple sensors. Simultaneously, the extinguishing agent delivered by the fire-fighting connection pipe enters the outer shell and is diverted by a conical support plate to multiple sets of inclined guide strips. These guide strips, close to the inner wall of the shell, guide the extinguishing agent to form a spiral, enhancing the spray pressure. The agent is then evenly distributed to each nozzle via a multi-channel connector, causing the nozzles to rotate and ensuring comprehensive coverage. The spring clips and sensors work together, opening different channels based on pressure, adapting to varying fire intensities while avoiding the incomplete extinguishing or media waste problems caused by flow mismatch in traditional fixed channels. This approach balances extinguishing efficiency and resource optimization. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional structural disassembly diagram of the transmission component in this utility model; Figure 3 This is a three-dimensional structural disassembly diagram of the adjustment component in this utility model; Figure 4This is a three-dimensional structural diagram of the spring sheet and mounting groove in this utility model.

[0015] Legend: 1. Fire-fighting connection pipe; 2. Transmission assembly; 21. Housing; 22. Multi-channel connector; 23. Connecting column; 24. Support plate; 25. Guide strip; 3. Adjustment assembly; 31. Connecting piece; 32. Threaded seat; 33. Spring; 34. Mounting groove; 35. Seal; 4. Nozzle; 5. Catalytic combustion sensor; 6. Electrochemical sensor; 7. Photoionization sensor; 8. Dual-band infrared flame detector; 9. Laser smoke sensor. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1 - Figure 3 The intelligent fire extinguishing device for a hazardous chemical storage area shown includes a fire-fighting connection pipe 1 and a transmission assembly 2, specifically: Fire-fighting connection pipe 1, serving as the main support structure of the device and as a channel for delivering extinguishing agents, connects at one end to a fire water source or extinguishing medium storage equipment such as a dry powder tank or foam liquid storage tank, and at the other end to the outer shell 21 of the transmission component 2. To provide an installation foundation, the outer side of fire-fighting connection pipe 1 is sequentially and sequentially equipped with: a catalytic combustion sensor 5 (detecting the oxidation reaction of combustible gases such as methane and propane with the catalyst surface to accurately monitor the concentration of flammable and explosive gases within a range of 0% to 100% LEL, triggering early gas leak warnings; an electrochemical sensor 6 (monitoring the concentration of toxic gases such as chlorine and ammonia in real time within a range of 0-100 ppm with an accuracy of ±2%); and a photoionization sensor 7 (utilizing...). Ultraviolet photoionization of volatile organic compounds (VOCs), such as benzene and toluene, is used to detect leaks of hazardous chemical volatiles, especially suitable for organic solvent storage areas. The range is 0-1000ppm, with a resolution of 1ppm. Dual-band infrared flame detector 8: By identifying the unique infrared spectrum of flames, the response wavelength is 3.2~3.4μm, the detection distance is ≥30 meters, and it can quickly respond to the initial open flame. It is not affected by smoke or dust, reducing the false alarm rate. Laser smoke sensor 9: It emits a laser beam to detect the scattered light of smoke particles, accurately identifying the smoke generated by early smoldering (0.01%~20%obs / m), resisting dust interference, distinguishing water vapor from combustion smoke, and having a false alarm rate of ≤0.05 times / day. All of these sensors are existing structures and can be implemented by those skilled in the art. Since they are existing technologies, they will not be described in detail in this case. The transmission assembly 2 includes a housing 21, which is fixedly connected to the outlet end of the fire-fighting connection pipe 1 to provide a guiding space for the extinguishing agent. A multi-channel connector 22 is rotatably connected to the lower part of the housing 21. The multi-channel connector 22 has a multi-interface tubular structure, with its upper part rotatably engaged with the housing 21 and mechanically sealed. Its lower part is connected to multiple nozzles 4 via an adjusting assembly 3 to distribute the extinguishing agent delivered by the housing 21 to each nozzle 4. A connecting column 23 is fixedly connected to the middle of the inner wall of the multi-channel connector 22, transmitting the torque borne by the support plate 24 to the multi-channel connector 22, thereby driving the connector to rotate. A support plate 24 is fixedly connected to the top of the connecting column 23 inside the housing 21, which can evenly distribute the extinguishing agent delivered by the fire-fighting connection pipe 1 to the surrounding guide strips 25. The multi-channel connector 22 is fixedly connected to multiple sets of guide strips 25. When the extinguishing agent flows through it, it forms a spiral shape under the guidance of the guide strips 25, which increases the spray pressure by 20% compared to the direct spray method. It also makes the medium distribution more uniform through centrifugal force, ensuring that the flow rate of each nozzle 4 is consistent. At the same time, it will generate a reverse torque on the guide strips 25. The torque will drive the multi-channel connector 22 to rotate around the lower part of the outer shell 21, which in turn drives the nozzles 4 fixed by the adjustment component 3 to rotate synchronously. During the rotation, the spray range of the nozzles 4 expands from a fixed angle to a ring area, increasing the working range. The nozzles 4 are fixedly installed on the outside of the multi-channel connector 22 through the adjustment component 3. They are the terminal spray components. The corresponding spray nozzles are designed according to the type of extinguishing medium, so that the extinguishing agent delivered by the multi-channel connector 22 is evenly sprayed to the target area.

[0018] like Figure 2 - Figure 4As shown, the adjustment component 3 includes a connector 31, which is sleeved on the outside of the multi-channel connector 22 for easy maintenance and disassembly of the nozzle 4. A threaded seat 32 is fixedly connected to the outer periphery of the nozzle 4 near the multi-channel connector 22. The connector 31 is threadedly connected to the threaded seat 32, enabling the nozzle 4 to be detachably installed and simultaneously enhancing the sealing of the connection between the nozzle 4 and the connector 2. An installation groove 34 is provided on the inner wall of the multi-channel connector 22 near the nozzle 4 for fixing the spring 33, limiting the displacement of the spring 33, and facilitating the replacement of the spring 33. The spring 33 is inserted into the inner wall of the installation groove 34, and is made of 50CrVA spring steel with an elastic modulus of 200~210GPa and a yield strength ≥1200MPa. The thickness of the spring 33 is set differently by rotating clockwise. It can control its elastic modulus to cope with different extinguishing agent pressures. In small fires with low pressure, the spring 33 deforms slightly and partially closes the channels to ensure concentrated extinguishing agent spray. In large fires with high pressure, the spring 33 deforms significantly and the channels are fully open, increasing the flow coverage. This adapts to different fire intensities and avoids the problems of incomplete extinguishing or media waste caused by flow mismatch in traditional fixed channels. It balances extinguishing efficiency and resource optimization. Multiple sets of springs 33 are provided, with adjacent sets symmetrically arranged. When the extinguishing agent pressure is low, the spring 33 deforms minimally; when the pressure increases, the spring 33 deforms under the thrust of the medium, expanding the channel cross-section to achieve adaptive flow adjustment to a pressure range of 0.2~1.6MPa. A sealing ring is provided on the side of the multi-channel connector 22 that connects to the nozzle 4. The spring 33 is L-shaped, and the elastic deformation capacity of the springs 33 in different channels on the multi-channel connector 22 is different. The outer side of the connector 31 is hexagonal for easy wrench operation. Each of the two adjacent sets of spring clips 33 is fixedly connected to a seal 35 on its opposite side. The seals 35 fit together to prevent the extinguishing agent from leaking. The upper part of the support plate 24 is cone-shaped, and the guide strip 25 is inclined. The outer upper part of the guide strip 25 is close to the upper inner wall of the outer shell 21.

[0019] The working principle of this system is as follows: A sensor array on the outside of the fire-fighting connection pipe 1 monitors the storage area in real time: a catalytic combustion sensor 5 detects the concentration of combustible gas, an electrochemical sensor 6 detects toxic gas leaks, a photoionization sensor 7 identifies volatile organic compounds, a dual-band infrared flame detector 8 responds to flame signals, and a laser smoke sensor 9 accurately identifies early smoldering smoke. Multi-sensor data fusion analysis quickly distinguishes between different hazard levels such as "gas leak," "smoke," and "open flame," providing a basis for fire-fighting actions.

[0020] When a fire is detected, the extinguishing agent is pumped through the fire extinguishing agent storage device and delivered to the housing 21 of the transmission assembly 2 via the fire connection pipe 1. The conical support plate 24 first evenly distributes the medium to multiple sets of inclined guide strips 25. The guide strips 25 are close to the inner wall of the housing 21 to guide the extinguishing agent to form a spiral shape, which increases the spray pressure by 20% compared to the direct spray method. At the same time, the centrifugal force ensures that the medium is evenly distributed. The reverse torque generated by the spiral drives the multi-channel connector 22 to rotate around the lower part of the housing 21, thereby driving the nozzle 4 to rotate synchronously, expanding the spray range from a fixed angle to a ring area, achieving 360° coverage.

[0021] The multi-channel connector 22 is connected to the nozzle 4 via the adjustment component 3. The L-shaped spring 33 on its inner wall achieves graded deformation through differentiated thickness design: small fire (0.2~0.5MPa): the spring 33 deforms (≤0.8mm), the seal 35 fits tightly, only the central channel is open, and the flow rate is controlled at 8~12L / min to ensure that the extinguishing agent acts on the fire source point; large fire (0.5~1.6MPa): the spring 33 deforms significantly (1.5~6.0mm) as the pressure increases, the outer channels open in sequence, the flow rate increases to 15~50L / min, and the coverage area is expanded in conjunction with the rotating nozzle.

[0022] After the fire subsides, the system reduces the extinguishing agent delivery pressure, and the spring 33 resets to seal the channel, preventing the loss of residual medium; after the sensor continuously monitors and confirms that the danger has been eliminated, the device stops working.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent fire extinguishing device for hazardous chemical storage areas, characterized in that, include; Fire-fighting connection pipe (1), as the main support structure of the device, has a catalytic combustion sensor (5), an electrochemical sensor (6), a photoionization sensor (7), a dual-band infrared flame detector (8), and a laser smoke sensor (9) fixedly installed on the outside of the fire-fighting connection pipe (1) from left to right. The transmission assembly (2) includes a housing (21), which is fixedly connected to the outlet end of the fire connection pipe (1). A multi-channel connector (22) is rotatably connected to the lower part of the housing (21). A connecting column (23) is fixedly connected to the middle of the inner wall of the multi-channel connector (22). A support plate (24) is fixedly connected to the top of the connecting column (23) inside the housing (21). A number of guide strips (25) are fixedly connected around the upper part of the support plate (24). A nozzle (4) is fixedly installed on the outside of the multi-channel connector (22) through an adjustment assembly (3).

2. The intelligent fire extinguishing device for hazardous chemical storage areas according to claim 1, characterized in that: The adjustment component (3) includes a connector (31), which is sleeved on the outside of the multi-channel connector (22). A threaded seat (32) is fixedly connected to the outer periphery of the nozzle (4) near the multi-channel connector (22). The connector (31) is threadedly connected to the threaded seat (32). An installation groove (34) is provided on the inner wall of the multi-channel connector (22) near the nozzle (4). A spring piece (33) is inserted into the inner wall of the installation groove (34). There are multiple sets of spring pieces (33). Two adjacent sets of spring pieces (33) are symmetrically arranged. A sealing ring is provided on the side of the multi-channel connector (22) that is connected to the nozzle (4).

3. The intelligent fire extinguishing device for hazardous chemical storage areas according to claim 2, characterized in that: The spring piece (33) is configured in an L shape.

4. The intelligent fire extinguishing device for hazardous chemical storage areas according to claim 2, characterized in that: The outer side of the connector (31) is set as a regular hexagon.

5. The intelligent fire extinguishing device for hazardous chemical storage areas according to claim 2, characterized in that: Each of the two adjacent sets of spring pieces (33) is fixedly connected to a sealing element (35) on the opposite side, and the sealing elements (35) fit together.

6. The intelligent fire extinguishing device for hazardous chemical storage areas according to claim 1, characterized in that: The upper part of the support plate (24) is set in a cone shape, the guide strip (25) is set at an angle, and the upper outer side of the guide strip (25) is close to the upper inner wall of the outer shell (21).

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