Fire extinguishing device for early fire of oil smoke separator pipeline
By designing a combined structure of sealing cover and fireproof sealing plate, and combining it with temperature detectors and water nozzles, automatic fire suppression of early-stage fires in oil fume exhaust ducts is achieved, solving the problem of fires caused by flammable materials in the ducts and ensuring that the device is not corroded by oil fumes and can be extinguished in a timely manner.
Patent Information
- Application Number
- CN202422732377.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Oil fume exhaust ducts are prone to large-scale fires caused by flames igniting accumulated dirt and grease during use, and existing technologies lack effective early fire extinguishing measures.
Design a fire extinguishing device that includes a sealing cover and a fireproof sealing plate. The sealing cover initially covers the fire extinguishing device, and the fireproof sealing plate can rotate by its own weight to close the pipe opening. Combined with a temperature detector and a solenoid valve, the water nozzle is controlled to automatically extinguish the fire.
It effectively isolates the spread of fire, prevents oil fumes and stains from corroding the fire extinguishing equipment, ensures the normal use of the fire extinguishing equipment, and enables automatic fire extinguishing in the early stages of a fire.
Smart Images
Figure CN223504741U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a fire extinguishing device for early-stage fires in oil fume separator pipes. Background Technology
[0002] Kitchen exhaust ducts are widely used in our daily lives, especially in restaurants, hotels, and other catering establishments. After a period of use, dirt, grease, and other easily flammable substances accumulate inside the ducts. When a fire breaks out due to improper operation or an accident, the flames can travel through the exhaust hood into the exhaust duct. In the event of a fire, this flame can ignite the substances and gases inside the exhaust duct, potentially leading to a large-scale fire. Utility Model Content
[0003] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a fire extinguishing device for early fire in oil fume separator pipes.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A fire extinguishing device for early-stage fire in an oil fume separator duct includes a rectangular oil fume duct with two openings. Fireproof sealing plates that can open and close their openings are rotatably installed at both ends of the oil fume duct. A sealing cover plate that is movably installed between the two fireproof sealing plates inside the oil fume duct is provided. A driving component that can drive the sealing cover plate to move is provided on the oil fume duct. The sealing cover plate can be supported and abutted against the fireproof sealing plates. A fire extinguishing device is provided on the oil fume duct.
[0006] When the sealing cover plate abuts against the fireproof sealing plate, the fireproof sealing plate is in a horizontal open connection state of the fume duct opening, and at this time the sealing cover plate covers the fire extinguishing device. When the sealing cover plate is detached from the fireproof sealing plate, the fireproof sealing plate can rotate downward due to its own weight and be in a vertical closed connection state of the fume duct opening.
[0007] In one embodiment, the fire extinguishing device includes a water supply pipe and a plurality of nozzles connected to the water supply pipe. The water supply pipe is equipped with a solenoid valve and can be connected to an external water supply device.
[0008] In one embodiment, a temperature sensor and a controller are respectively installed on the fume duct, the temperature sensor and the controller are electrically connected, and the controller is electrically connected to a solenoid valve.
[0009] In one embodiment, the fume duct is provided with limiting structures at both ends that can drive the fireproof sealing plate to remain vertical.
[0010] In one embodiment, the limiting structure includes a limiting plate and a limiting rod spaced apart, and a limiting area is formed between the limiting plate and the limiting rod;
[0011] The limiting plate is fixedly connected to the inner side of the fume duct. The lower side of the fume duct has a recessed mounting groove. The limiting rod is movably disposed in the mounting groove. A spring that can abut against the lower end of the limiting rod is disposed in the mounting groove. A guide slope is disposed on the limiting rod and on the side opposite to the limiting plate. The fireproof sealing plate can rotate and abut against the guide slope, so that the limiting rod moves downward and the fireproof sealing plate can pass over the limiting rod and be located within the limiting area.
[0012] In one embodiment, the lower end of the limiting rod passes through the side wall of the fume duct and extends to the outside of the fume duct.
[0013] In one embodiment, two support rods are spaced apart on the inner side of the fume duct, the support rods are vertically arranged, and the sealing cover is movably sleeved on the support rods so that it can move up and down relative to the fume duct.
[0014] In one embodiment, the driving element is an electric telescopic rod or a cylinder.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] In the initial state of this utility model, when the sealing cover plate abuts against the fireproof sealing plate, the fireproof sealing plate is in a connected state with the opening of the oil fume duct horizontally open, and at this time the sealing cover plate covers the fire extinguishing device, thereby effectively preventing the accumulation of oil fume and oil stains in the oil fume duct from corroding the fire extinguishing device, causing the fire extinguishing device to age and affect its subsequent normal use.
[0017] When a fire breaks out in the fume duct, the driving component can move the sealing cover so that the sealing cover is separated from the fireproof sealing plate. At this time, the fireproof sealing plate rotates downward due to its own weight and is in a vertically closed connection state of the fume duct opening, thereby effectively isolating the spread of fire and gas flow. This helps to extinguish the fire after the oxygen is exhausted. Attached Figure Description
[0018] Figure 1 This is one of the cross-sectional structural schematic diagrams of a fire extinguishing device for early-stage fire in an oil fume separator pipeline according to the present invention;
[0019] Figure 2 In this utility model Figure 1 Enlarged view of point A;
[0020] Figure 3 This is one of the three-dimensional structural schematic diagrams of a fire extinguishing device for early-stage fire in an oil fume separator pipeline according to the present invention;
[0021] Figure 4 This is the second cross-sectional structural schematic diagram of a fire extinguishing device for early-stage fire in an oil fume separator pipeline according to the present invention.
[0022] Figure 5 This is the second three-dimensional structural schematic diagram of a fire extinguishing device for early-stage fire in an oil fume separator pipeline according to this utility model. Detailed Implementation
[0023] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.
[0024] like Figures 1-5 A fire extinguishing device for early-stage fire in an oil fume separator duct is shown, comprising a rectangular oil fume duct 1 with two openings. Fireproof sealing plates 2, rotatably mounted at both ends of the oil fume duct 1, are capable of opening and closing their openings. A sealing cover 3, movable vertically between the two fireproof sealing plates 2, is mounted inside the oil fume duct 1. A driving component 4 is mounted on the oil fume duct 1 to move the sealing cover 3. The sealing cover 3 is supported and abuts against the fireproof sealing plates 2. A fire extinguishing device 5 is mounted on the oil fume duct 1. When the sealing cover 3 abuts against the fireproof sealing plate 2, the fireproof sealing plate 2 is in a horizontally open connection state of the oil fume duct 1, and at this time, the sealing cover 3 covers the fire extinguishing device 5. When the sealing cover 3 detaches from the fireproof sealing plate 2, the fireproof sealing plate 2 can rotate downwards due to its own weight, entering a vertically closed connection state of the oil fume duct 1.
[0025] Specifically, in the initial state, when the sealing cover plate abuts against the fireproof sealing plate, the fireproof sealing plate is in a horizontally open connection state of the fume duct opening, and at this time the sealing cover plate covers the fire extinguishing device, thereby effectively preventing the accumulation of oil and grease in the fume duct from corroding the fire extinguishing device and causing the fire extinguishing device to age and affect its subsequent normal use.
[0026] When a fire breaks out in the fume extraction duct, the driving mechanism moves the sealing cover, causing it to detach from the fireproof sealing plate. Simultaneously, the fireproof sealing plate rotates downwards under its own weight, vertically sealing the opening of the fume extraction duct. This effectively isolates the spread of fire and gas flow, thus aiding in fire extinguishing once the oxygen is exhausted.
[0027] Furthermore, the fire extinguishing device 5 includes a water supply pipe 51 and multiple nozzles 52 connected to the water supply pipe 51. The water supply pipe 51 is equipped with a solenoid valve and can be connected to an external water supply device. Specifically, water can be supplied to the water supply pipe via an external water supply device, sprayed through the nozzles into the fume extraction duct for fire extinguishing, and the opening and closing of the water supply pipe is controlled by the solenoid valve.
[0028] Furthermore, a temperature sensor 54 and a controller are respectively installed on the fume duct 1. The temperature sensor 54 is electrically connected to the controller, and the controller is electrically connected to the solenoid valve. Specifically, the controller is also electrically connected to the drive unit. When the temperature sensor detects an abnormal temperature inside the fume duct, it sends an electrical signal to the controller. The controller then controls the solenoid valve to open and controls the drive unit to move the sealing cover away from the fireproof sealing plate. At this time, the water supply device delivers water to the water supply pipeline, which is then sprayed into the fume duct through the nozzle to extinguish the fire.
[0029] Furthermore, each end of the fume duct 1 is provided with a limiting structure 6 that can drive the fireproof sealing plate 2 to maintain a vertical state. Further, the limiting structure 6 includes a limiting plate 61 and a limiting rod 62 spaced apart, forming a limiting area between the limiting plate 61 and the limiting rod 62; wherein, the limiting plate 61 is fixedly connected to the inner side of the fume duct 1, the lower side of the fume duct 1 has a recessed mounting groove 63, the limiting rod 62 is movably disposed within the mounting groove 63, the mounting groove 63 is provided with a spring 64 that abuts against the lower end of the limiting rod 62, and a guide slope 65 is provided on the limiting rod 62 on the side opposite to the limiting plate 61, the fireproof sealing plate 2 can rotate and abut against the guide slope 65, causing the limiting rod 62 to move downwards, allowing the fireproof sealing plate 2 to pass over the limiting rod 62 and be located within the limiting area.
[0030] Furthermore, the lower end of the limiting rod 62 passes through the side wall of the fume duct 1 and extends to the outside of the fume duct 1. Therefore, after the fume duct is disassembled, the user can manually pull the limiting rod and then manually drive the fireproof sealing plate to flip and reset, allowing it to be re-supported by the sealing cover plate, thus achieving recycling.
[0031] Furthermore, two support rods 11 are spaced apart on the inner side of the fume duct 1. The support rods 11 are vertically arranged, and the sealing cover 3 is movably sleeved on the support rods 11 so that it can move up and down relative to the fume duct 1.
[0032] Furthermore, the driving component 4 is an electric telescopic rod or a cylinder.
[0033] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fire extinguishing device for early-stage fire in an oil fume separator duct, comprising a rectangular oil fume duct (1) with two openings, characterized in that: The fume duct (1) is rotatably equipped with fireproof sealing plates (2) at both ends, which can open and close their openings. A sealing cover plate (3) is movably installed between the two fireproof sealing plates (2) inside the fume duct (1). A driving component (4) is provided on the fume duct (1) to drive the sealing cover plate (3) to move. The sealing cover plate (3) can be supported and abutted against the fireproof sealing plate (2). A fire extinguishing device (5) is provided on the fume duct (1). When the sealing cover (3) abuts against the fireproof sealing plate (2), the fireproof sealing plate (2) is in a horizontally open connection state of the fume duct (1), and at this time the sealing cover (3) covers the fire extinguishing device (5). When the sealing cover (3) is removed from the fireproof sealing plate (2), the fireproof sealing plate (2) can rotate downward due to its own weight and is in a vertically closed connection state of the fume duct (1).
2. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 1, characterized in that: The fire extinguishing device (5) includes a water supply pipe (51) and multiple nozzles (52) connected to the water supply pipe (51). The water supply pipe (51) is equipped with a solenoid valve and can be connected to an external water supply device.
3. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 2, characterized in that: A temperature sensor (54) and a controller are respectively installed on the fume duct (1). The temperature sensor (54) is electrically connected to the controller, and the controller is electrically connected to the solenoid valve.
4. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 1, characterized in that: The fume duct (1) is provided with limiting structures (6) at both ends, which can drive the fireproof sealing plate (2) to maintain a vertical state.
5. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 4, characterized in that: The limiting structure (6) includes a limiting plate (61) and a limiting rod (62) arranged at intervals, and a limiting area is formed between the limiting plate (61) and the limiting rod (62); The limiting plate (61) is fixedly connected to the inner side of the fume duct (1). The lower side of the fume duct (1) has an indented mounting groove (63). The limiting rod (62) is movably mounted in the mounting groove (63). A spring (64) that can abut against the lower end of the limiting rod (62) is provided in the mounting groove (63). A guide slope (65) is provided on the limiting rod (62) and on the side opposite to the limiting plate (61). The fireproof sealing plate (2) can rotate and abut against the guide slope (65), so that the limiting rod (62) moves downward and the fireproof sealing plate (2) can pass over the limiting rod (62) and be located in the limiting area.
6. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 5, characterized in that: The lower end of the limiting rod (62) passes through the side wall of the fume duct (1) and extends to the outside of the fume duct (1).
7. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 1, characterized in that: Two support rods (11) are spaced apart on the inner side of the fume duct (1). The support rods (11) are vertically arranged. The sealing cover (3) is movably sleeved on the support rods (11) so that it can move up and down relative to the fume duct (1).
8. A fire extinguishing device for early-stage fire in an oil fume separator duct according to claim 1, characterized in that: The driving component (4) is an electric telescopic rod or a cylinder.