Low-temperature-resistant fire extinguisher spray pipe

Abstract

The low-temperature-resistant fire extinguisher spray pipe comprises a control box, a controller is arranged on the front side in the control box, a plurality of telescopic pipes are installed at one end of the rear side of the control box, a plurality of conveying pipes corresponding to the telescopic pipes are installed at the other end of the rear side of the control box, the conveying pipes are connected with the corresponding telescopic pipes through adapter pipes, and the adapter pipes are located in the rear side of the control box; the end, away from the control box, of the telescopic pipe is in threaded connection with a multi-mode spray head, the multi-mode spray head comprises a connector, an outer pipe integrated with the connector and an inner pipe arranged in the outer pipe, the connector is in threaded connection with the telescopic pipe, the inner pipe and the outer pipe are both communicated with the telescopic pipe, and the inner pipe and the outer pipe are connected through a spiral flow deflector; and the tail end between the inner pipe and the outer pipe is connected with an atomizing nozzle. The double-layer cavity is arranged in the nozzle, the spiral flow deflector is arranged in the outer cavity, the atomizing nozzle is combined, atomizing spraying is achieved, the inner cavity provides a direct-current mode for a straight-through channel, and therefore the spraying mode is increased.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting equipment, in particular to a low-temperature resistant fire extinguisher nozzle. Background Art

[0002] When extinguishing a fire, the nozzle of the fire extinguisher is closest to the flame, but the nozzles of traditional fire extinguishers have the following problems: (1) The spraying mode is single, either only direct spraying or only atomized spraying; (2) The corresponding fire extinguishing material cannot be selected according to the flame type, making it difficult to adapt to different fire sources, such as oil fire, electrical fire, etc. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides a low-temperature resistant fire extinguisher nozzle to solve the problem that the current nozzle cannot adjust the spray mode or select the corresponding fire extinguishing material according to the flame type.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A low-temperature resistant fire extinguisher nozzle includes a control box, a controller is provided on the front side of the control box, multiple telescopic tubes are installed at one end of the rear side of the control box, and multiple delivery tubes corresponding to the telescopic tubes are installed at the other end. The delivery tubes are connected to the corresponding telescopic tubes through a switching tube, and the switching tube is located inside the rear side of the control box. The end of the telescopic tube away from the control box is threadedly connected to a multimodal nozzle. The multimodal nozzle includes a connector, an outer tube integrated with the connector, and an inner tube arranged in the outer tube. The connector is threadedly connected to the telescopic tube, and the inner tube and the outer tube are both connected to the telescopic tube. The inner tube and the outer tube are connected by a spiral guide plate, and the ends between the inner tube and the outer tube are connected to an atomizing nozzle.

[0006] Preferably, the telescopic tube includes a first tube body, one end of the first tube body is connected to the corresponding adapter tube, the other end of the first tube body is fixedly connected to the second tube body, the outer wall of the second tube body is provided with an external thread, and is threadedly connected to the third tube body, and the connecting head is threadedly connected to the outer wall of the third tube body away from one end of the second tube body.

[0007] Through the above technical solution, the third tube body can be screwed to extend the telescopic length so that the nozzle can reach the desired position for fire extinguishing.

[0008] Preferably, annular grooves are provided at the proximal ends of the first tube body and the third tube body, and swivels are rotatably connected in the two annular grooves through rotating bearings. Positioning blocks are fixed on the two swivels, and guide rods are slidably connected in the two positioning blocks. The end of the guide rod away from the second tube body is fixedly connected to the limiting block.

[0009] With the above technical solution, when the third tube body is rotated, the two rotating rings are driven to rotate together through the action of the two rotating bearings, thereby driving the two positioning blocks to rotate together. At the same time, when the third tube body moves, it drives the guide rod to slide together in the positioning block. By providing a limit block, before the third tube body is separated from the second tube body, the limit block first contacts the positioning block on the first tube body, thereby preventing the guide rod from being separated from the positioning block, and further preventing the third tube body from continuing to move, thereby preventing the third tube body from being separated from the second tube body.

[0010] Preferably, a sealing ring is provided on the inner wall of the connector and the inner wall of the third tube body close to one end of the second tube body.

[0011] Through the above technical solution and the provision of the sealing ring, the sealing between the second tube body, the third tube body and the connector can be improved.

[0012] Preferably, solenoid valves are installed on both of the delivery pipes, and the solenoid valves are electrically connected to the controller.

[0013] Through the above technical solution, the opening and closing of the corresponding delivery pipe can be controlled by the solenoid valve.

[0014] Preferably, a display screen is provided on the front side of the control box, and the display screen is electrically connected to the controller.

[0015] Through the above technical solution, the ambient temperature, flame type, air parameters at the fire scene, etc. can be displayed on the display screen.

[0016] Preferably, the outer periphery of the adapter tube in the control box is covered with a heating silicone sheet, and the adapter tube and the telescopic tube are both made of metal.

[0017] Through the above technical solution, the heating silicone sheet can generate heat to heat the transfer tube. The transfer tube and the telescopic tube are both made of metal. On the one hand, they can prevent fire from burning, and on the other hand, they can accelerate heat transfer, thereby achieving anti-low temperature and anti-freeze effects.

[0018] Preferably, the controller includes an intelligent control module, which includes a multi-source information perception layer, a data processing and decision-making layer, and an execution control layer. The multi-source information perception layer includes a flame type identification sensor group and an environmental parameter sensor; the flame category identification sensor is used to identify the flame type, and the environmental parameter sensor adopts an integrated gas sensor to collect environmental parameters; the data processing and decision-making layer adopts an embedded processor, and the hardware adopts a multi-core heterogeneous architecture; its algorithm framework is: multi-source data acquisition → feature fusion → fire source classification → fire extinguishing material decision; and a pre-trained model based on transfer learning, which completes fire source classification locally through edge computing; according to the fire source type and environmental parameters, the preset rule library is called to select the injection of fire extinguishing material.

[0019] Preferably, the flame type identification sensor group includes a multispectral camera and a thermal imager, and the outer wall of the third tube body near one end of the nozzle is threadedly connected to a box body, on which a multispectral camera, a thermal imager and an integrated gas sensor are installed.

[0020] Through the above technical solution, the multispectral camera, thermal imager, and integrated gas sensor are all electrically connected to the intelligent control system.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The nozzle has a built-in double-layer cavity, with spiral guide vanes arranged in the outer cavity, and combined with an atomizing nozzle to achieve atomized spraying. The inner cavity provides a direct current mode for the straight-through channel, thereby increasing the spray mode.

[0023] (2) A box body is installed on the telescopic tube. A multispectral camera and a thermal imager are installed on the box body to identify the flame type and the fire source. An integrated gas sensor is installed on the box body to measure the gas parameters around the flame so as to select the appropriate fire extinguishing material according to the fire source and on-site conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 Schematic diagram of the telescopic tube and the nozzle;

[0026] Figure 3 It is a cross-sectional view of the telescopic tube and the nozzle;

[0027] Figure 4 is a cross-sectional view of the nozzle;

[0028] Figure 5 It is a cross-sectional view of the control box;

[0029] Figure 6 This is a schematic diagram of the intelligent control module;

[0030] In the figure: 1-control box, 2-telescopic tube, 201-first tube body, 202-second tube body, 203-third tube body, 204-swivel, 205-positioning block, 206-guide rod, 207-limiting block, 208-rotating bearing, 3-delivery pipe, 4-adapter pipe, 5-multimodal nozzle, 501-connector, 502-outer tube, 503-inner tube, 504-guide plate, 505-atomizing nozzle, 6-sealing ring, 7-solenoid valve, 8-display screen, 9-heating silicone sheet, 10-multispectral camera, 11-thermal imager, 12-box body, 13-integrated gas sensor, 14-fire extinguisher. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-5 A low-temperature fire extinguisher nozzle includes a control box 1. A controller is provided on the front side of the control box 1. The controller includes an intelligent control module. A plurality of telescopic tubes 2 are installed at one end of the rear side of the control box 1, and a plurality of delivery tubes 3 corresponding to the telescopic tubes 2 are installed at the other end. The delivery tubes 3 are connected to the corresponding telescopic tubes 2 through a transfer tube 4. The transfer tube 4 is located inside the rear side of the control box 1. A heating silicone sheet 9 is coated on the periphery of the transfer tube in the control box 1. The heating silicone sheet is electrically connected to the controller. The transfer tube 4 and the telescopic tube 2 are both made of metal. The heating silicone sheet 9 generates heat to heat the transfer tube 4. The transfer tube 4 and the telescopic tube 2 are both made of metal. On the one hand, it can prevent fire from burning, and on the other hand, it can accelerate heat transfer, thereby achieving the effect of resisting low temperatures and freezing.

[0034] The end of the telescopic tube 2 away from the control box is threadedly connected to a multimodal nozzle 5. The multimodal nozzle 5 includes a connector 501, an outer tube 502 integral with the connector, and an inner tube 503 disposed within the outer tube. The connector 501 is threadedly connected to the telescopic tube 2, and both the inner tube 503 and the outer tube 502 are in communication with the telescopic tube 2. The inner tube 503 and the outer tube 502 are connected by a spiral guide plate 504. The ends between the inner tube 503 and the outer tube 502 are connected to an atomizing nozzle 505. The nozzle has a built-in double-layer cavity, with a spiral guide plate arranged in the outer cavity, which is combined with the atomizing nozzle to achieve atomized spraying. The inner cavity provides a direct current mode for a straight-through channel, thereby increasing the spray mode. In a fire, through the mixed spray mode and the dual fluid, precise foam coverage is achieved, improving fire extinguishing efficiency.

[0035] The telescopic tube 2 comprises a first tube 201, one end of which is connected to a corresponding adapter tube 4. The other end of the first tube 201 is fixedly connected to a second tube 202. The outer wall of the second tube 202 is provided with external threads, and is threadedly connected to a third tube 203. A connector 501 is threadedly connected to the outer wall of the third tube 203 at the end away from the second tube 202. The adjacent ends of the first and third tubes 201 and 203 are each provided with an annular groove. A swivel 204 is rotatably connected to each annular groove via a rotary bearing 208. Positioning blocks 205 are fixed to each swivel 204. Guide rods 206 are slidably connected to each positioning block 205. The end of the guide rod 206 away from the second tube is fixedly connected to a limit block 207. By screwing the third tube 203, the telescopic tube can be extended, allowing the multi-mode sprinkler 5 to reach the desired position for fire extinguishing. When the third tube 203 is rotated, the two rotating rings 204 are driven to rotate together through the action of the two rotating bearings 208, thereby driving the two positioning blocks 205 to rotate together. At the same time, when the third tube 203 moves, it will drive the guide rod 206 to slide together in the positioning block 205. By providing a limit block 207, before the third tube 203 is separated from the second tube 202, the limit block 207 first contacts the positioning block 205 on the first tube 201, thereby preventing the guide rod 206 from separating from the positioning block 205, thereby preventing the third tube 203 from continuing to move, thereby preventing the third tube 203 from separating from the second tube 202.

[0036] The inner wall of the connector 501 and the inner wall of the third tube 203 near the end of the second tube are both provided with a sealing ring 6. The provision of the sealing ring can improve the sealing between the second tube, the third tube and the connector.

[0037] Both delivery pipes 3 are equipped with solenoid valves 7, which are electrically connected to a controller. The delivery pipes are connected to different fire extinguishing tanks, each containing a different fire extinguishing substance, such as water, dry matter, CO2, etc. The opening and closing of the corresponding delivery pipe can be controlled by the solenoid valves 7 to deliver the corresponding fire extinguishing substance to the telescopic tube.

[0038] Example 2

[0039] On the basis of Example 1, Figure 1 、 Figure 2 、 Figure 6As shown, the intelligent control module includes a multi-source information perception layer, a data processing and decision-making layer, and an execution control layer. The multi-source information perception layer includes a flame type recognition sensor group and an environmental parameter sensor; the flame type recognition sensor group includes a multi-spectral camera 10 and a thermal imager 11 for identifying the flame type, and the environmental parameter sensor adopts an integrated gas sensor 13 for collecting environmental parameters; the outer wall of the third tube 203 near one end of the nozzle is threadedly connected to a box body 12, and the box body 12 is equipped with a multi-spectral camera 10, a thermal imager 11 and an integrated gas sensor 13. A display screen 8 is provided on the front side of the control box 1, and the display screen is electrically connected to the controller. The ambient temperature, flame type, air parameters at the fire scene, etc. can be displayed through the display screen 8.

[0040] The data processing and decision-making layer uses an embedded processor and a multi-core heterogeneous hardware architecture. Its algorithm framework is: multi-source data collection → feature fusion → fire source classification → fire extinguishing material decision-making. The specific steps include:

[0041] (1) Multi-source data input: Multispectral cameras collect multispectral features Thermal imager collects thermal imaging temperature gradient characteristics Integrated gas sensors detect CO, O2, and smoke particle concentrations to collect ambient gas concentration characteristics

[0042] (2) Feature fusion: Weighted fusion of multi-source data through the attention mechanism:

[0043]

[0044] Wi: learnable weight matrix

[0045] σ: Sigmoid activation function

[0046] (3) Fire source classification: Construct a three-dimensional decision matrix of fire extinguishing materials, fire source types, and environmental conditions:

[0047]

[0048]

[0049] (4) Fire extinguishing material decision-making: Based on the type of fire source and environmental parameters, the preset rule library is called to select the injection of fire extinguishing materials.

[0050] Decision function:

[0051]

[0052] Stype(m): The degree of match between substance m and the ignition source type (0-1, coded by NFPA standards)

[0053] Senv(m): The adaptability of substance m to environmental conditions (such as temperature adaptability function, O2 concentration weight)

[0054] Weight coefficient: γ1 = 0.7, γ2 = 0.3

[0055] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-temperature resistant fire extinguisher nozzle, characterized in that: The invention comprises a control box (1), wherein a controller is provided at the front side of the control box (1), a plurality of telescopic tubes (2) are installed at one end of the rear side of the control box (1), and a plurality of delivery tubes (3) corresponding to the telescopic tubes (2) are installed at the other end, wherein the delivery tubes (3) are connected to the corresponding telescopic tubes (2) via a transfer tube (4), wherein the transfer tube (4) is located inside the rear side of the control box (1), and a multi-modal nozzle (5) is threadedly connected to one end of the telescopic tube (2) away from the control box, wherein the multi-modal nozzle ( 5) comprises a connector (501), an outer tube (502) integral with the connector, and an inner tube (503) arranged in the outer tube, the connector (501) is threadedly connected to the telescopic tube (2), the inner tube (503) and the outer tube (502) are both connected to the telescopic tube (2), the inner tube (503) and the outer tube (502) are connected via a spiral guide plate (504), and an atomizing nozzle (505) is connected to the end between the inner tube (503) and the outer tube (502).

2. The low-temperature resistant fire extinguisher nozzle according to claim 1, characterized in that: The telescopic tube (2) comprises a first tube body (201), one end of the first tube body (201) is connected to a corresponding adapter tube (4), the other end of the first tube body (201) is fixedly connected to a second tube body (202), an outer wall of the second tube body (202) is provided with an external thread, and is threadedly connected to a third tube body (203), and a connector (501) is threadedly connected to the outer wall of the third tube body (203) away from the second tube body (202).

3. The low-temperature resistant fire extinguisher nozzle according to claim 2, characterized in that: An annular groove is provided at the adjacent ends of the first tube body (201) and the third tube body (203), and a rotating ring (204) is rotatably connected in the two annular grooves via a rotating bearing. A positioning block (205) is fixed on the two rotating rings (204), and a guide rod (206) is slidably connected in the two positioning blocks (205). The end of the guide rod (206) away from the second tube body is fixedly connected to a limiting block (207).

4. The low-temperature resistant fire extinguisher nozzle according to claim 3, characterized in that: The inner wall of the connector (501) and the inner wall of the third tube (203) close to one end of the second tube are both provided with a sealing ring (6).

5. The low-temperature resistant fire extinguisher nozzle according to claim 4, characterized in that: Both of the two delivery pipes (3) are equipped with electromagnetic valves (7), which are electrically connected to the controller.

6. The low-temperature resistant fire extinguisher nozzle according to claim 5, characterized in that: A display screen (8) is provided on the front side of the control box (1), and the display screen is electrically connected to the controller.

7. The low-temperature resistant fire extinguisher nozzle according to claim 6, characterized in that: The control box (1) is provided with a heating silicone sheet (9) covering the periphery of the transfer tube, the heating silicone sheet is electrically connected to the controller, and the transfer tube (4) and the telescopic tube (2) are both made of metal.

8. The low-temperature resistant fire extinguisher nozzle according to claim 7, characterized in that: The controller includes an intelligent control module, which includes a multi-source information perception layer, a data processing and decision-making layer, and an execution control layer. The multi-source information perception layer includes a flame type recognition sensor group and an environmental parameter sensor; The flame type recognition sensor is used to identify the flame type, and the environmental parameter sensor uses an integrated gas sensor to collect environmental parameters; The data processing and decision-making layers use embedded processors, and the hardware adopts a multi-core heterogeneous architecture; Its algorithm framework is: multi-source data collection → feature fusion → fire source classification → fire extinguishing material decision-making; and a pre-trained model based on transfer learning, which completes fire source classification locally through edge computing; based on the fire source type and environmental parameters, the preset rule library is called to select the injection of fire extinguishing materials.

9. The low-temperature resistant fire extinguisher nozzle according to claim 8, characterized in that: The flame type identification sensor group comprises a multispectral camera (10) and a thermal imager (11); an outer wall of the third tube (203) near one end of the nozzle is threadedly connected to a box body (12); and the box body (12) is equipped with the multispectral camera (10), the thermal imager (11) and the integrated gas sensor (13).

Images