Self-filtering kitchen ducting extractor fan

Abstract

The utility model provides a kind of self-filtering kitchen pipeline smoke exhaust fan, it is related to kitchen pipeline smoke exhaust technical field, including fixed frame, the outside of fixed frame is provided with heat exchange mechanism;Heat exchange mechanism includes two water storage frames, the side of two water storage frames mutually close is respectively fixedly connected with the two side surfaces of fixed frame, the inner wall of fixed frame is fixedly connected with two heat exchange fins, the side of two water storage frames mutually away is all fixedly connected with fixed frame, the inner wall of each fixed frame is all fixedly connected with servo motor, the output end of each servo motor power is all fixedly connected with rotating shaft.The self-filtering kitchen pipeline smoke exhaust fan, heat exchange fin can significantly increase the contact area with high-temperature flue gas, when flue gas passes through fixed frame, heat exchange fin quickly absorbs heat in flue gas and transfers to water in water storage frame, realizes the efficient conversion of heat energy, simultaneously, servo motor drives rotating shaft to drive stirring shaft to continue rotating, so that the water in water storage frame forms vortex.

Description

Technical Field

[0001] This utility model relates to a smoke exhaust fan, specifically a self-filtering kitchen duct smoke exhaust fan, belonging to the field of kitchen duct smoke exhaust technology. Background Technology

[0002] Kitchen duct exhaust is a duct system specifically designed to exhaust fumes, steam, heat, and odors generated during cooking to the outside. Its main function is to effectively remove pollutants from the kitchen, ensure air circulation, and reduce the impact of fumes on the kitchen environment and indoor air quality.

[0003] Chinese Patent Publication CN223178899U discloses a self-filtering kitchen duct exhaust fan. It cleans the oil and grease stains that have just been adsorbed by the flow of liquid. The wastewater is guided into the arc-shaped water storage channel by the action of the inclined plate and then discharged through the drain outlet. This reduces the possibility of dirt forming due to the accumulation of oil and grease, improves the interception and filtration effect of the exhaust fan, and thus extends the service life of the exhaust fan.

[0004] In practical use, the exhaust gas from the aforementioned patented technology has a certain temperature, which is also quite high. However, the kitchen duct exhaust fan cannot process this high-temperature exhaust gas during operation. The high-temperature exhaust gas is simply filtered and directly discharged, which can easily affect the atmospheric environment and waste energy. Therefore, a self-filtering kitchen duct exhaust fan is proposed here. Utility Model Content

[0005] This invention proposes a self-filtering kitchen duct exhaust fan to solve the problem of inconvenience in handling high-temperature hot air in the prior art.

[0006] This utility model is achieved through the following technical solution: a self-filtering kitchen duct exhaust fan, including a fixed frame, and a heat exchange mechanism is provided on the outside of the fixed frame;

[0007] The heat exchange mechanism includes two water storage frames. The sides of the two water storage frames that are close to each other are fixedly connected to the two sides of a fixed frame. Two heat exchange fins are fixedly connected to the inner wall of the fixed frame. Fixed frames are fixedly connected to the sides of the two water storage frames that are far from each other. A servo motor is fixedly connected to the inner wall of each fixed frame. A rotating shaft is fixedly connected to the output end of each servo motor. The outer surface of each rotating shaft is rotatably connected to the inner wall of the water storage frame. A sealed bearing is fixedly connected to the outer surface of each rotating shaft. The outer ring of each sealed bearing is fixedly connected to the inner wall of the water storage frame. Two sets of stirring shafts are fixedly connected to the outer surface of each rotating shaft.

[0008] The fixed frame is equipped with a drainage component.

[0009] The diversion assembly includes two guide plates. The outer surface of each guide plate is fixedly connected to the inner wall of the fixed frame. A diversion block is fixedly connected to the inner wall of the fixed frame. A fan body is fixedly connected to the bottom surface of the diversion block. The outer surface of the fan body is fixedly connected to the inner wall of the fixed frame.

[0010] A flange is fixedly connected to the top of the fixed frame, and six connection holes are provided on the upper surface of the flange.

[0011] Each of the water storage frames has a water injection pipe fixedly connected to its upper surface, and each water injection pipe has a plug threadedly connected to its inner wall.

[0012] Each of the water storage frames has a fixed water outlet pipe connected to its bottom surface, and each of the water outlet pipes has a fixed control valve connected to its outer surface.

[0013] The inner wall of the fixed frame is fixedly connected with a railing, and the inner wall of the fixed frame is fixedly connected with a filter plate.

[0014] Each of the water storage frames has a reinforcing block fixedly connected to its upper and bottom surfaces, and the two sets of reinforcing blocks are fixedly connected to the two sides of the fixed frame on their respective sides.

[0015] A sealing gasket is fixedly connected to the upper surface of the flange, and the bottom surface of the sealing gasket is in contact with the upper surface of the fixed frame.

[0016] This utility model provides a self-filtering kitchen duct exhaust fan, which has the following beneficial effects:

[0017] 1. This self-filtering kitchen exhaust fan features heat exchange fins that significantly increase the contact area with high-temperature flue gas. When the flue gas passes through the fixed frame, the heat exchange fins quickly absorb the heat from the flue gas and transfer it to the water in the storage frame, achieving efficient heat energy conversion. At the same time, the servo motor drives the rotating shaft to continuously rotate the stirring shaft, causing the water in the storage frame to form a vortex, enhancing the heat exchange efficiency between the water and the heat exchange fins, and avoiding heat conduction lag caused by uneven local water temperature. This design not only reduces the flue gas temperature to a safe emission range and reduces the impact of thermal pollution on the atmospheric environment, but also allows the recovered heat to be used for kitchen hot water supply, heating, and other scenarios.

[0018] 2. This self-filtering kitchen duct exhaust fan, through the design of the guide plate and the diverter block, makes the high-temperature flue gas form a uniform flow field within the fixed frame. The guide plate guides the flue gas to flow along a specific path, and the diverter block can divert the flue gas to both sides of the fixed frame so that it can contact the heat exchange fins on the wall and reduce the heat conduction distance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the fixed frame structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the fixed frame structure of this utility model;

[0021] Figure 3 This is a bottom sectional view of the fixed frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the heat exchange fin structure of this utility model;

[0023] Figure 5 This is a cross-sectional view of the water storage frame of this utility model.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Fixed frame;

[0026] 2. Heat exchange mechanism; 201. Water storage frame; 202. Heat exchange fins; 203. Fixing frame; 204. Servo motor; 205. Rotating shaft; 206. Sealed bearing; 207. Stirring shaft;

[0027] 3. Flow diversion assembly; 301. Flow guide plate; 302. Flow divider block; 303. Fan body;

[0028] 4. Flange; 5. Connection hole; 6. Water injection pipe; 7. Plug; 8. Water outlet pipe; 9. Control valve; 10. Guard plate; 11. Filter plate; 12. Reinforcing block; 13. Sealing gasket. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0030] Please see Figures 1-5 This utility model embodiment provides a self-filtering kitchen duct exhaust fan, including a fixed frame 1, and a heat exchange mechanism 2 is provided on the outside of the fixed frame 1;

[0031] The heat exchange mechanism 2 includes two water storage frames 201. The two water storage frames 201 are fixedly connected to the two sides of the fixed frame 1 on their respective sides. The top of the fixed frame 1 is fixedly connected to a flange 4. The upper surface of the flange 4 has six connection holes 5. As a standard connection component, the flange 4 can be quickly connected to the flue gas duct without the need for additional customized connection structure, which reduces the installation difficulty and cost. The setting of six connection holes 5 can tightly fix the flange 4 to the flue gas duct with bolts and other fasteners.

[0032] Please refer to this carefully. Figure 1 Two heat exchange fins 202 are fixedly connected to the inner wall of the fixed frame 1. The two water storage frames 201 are fixedly connected to the side away from each other with a fixed bracket 203. A servo motor 204 is fixedly connected to the inner wall of each fixed bracket 203. A water injection pipe 6 is fixedly connected to the upper surface of each water storage frame 201. A plug 7 is threadedly connected to the inner wall of each water injection pipe 6. The water injection pipe 6 serves as a dedicated water replenishment channel. The operator can replenish water into the water storage frame 201 through the water injection pipe 6 without disassembling the water storage frame 201 or stopping the machine. This ensures that the water storage frame 201 always has a sufficient amount of water to maintain normal heat exchange function and avoids a decrease in heat exchange efficiency due to insufficient water. The threaded plug 7 can tightly seal the opening of the water injection pipe 6.

[0033] Please refer to this carefully. Figure 1 Each servo motor 204 has a fixedly connected rotating shaft 205 at its power output end. The outer surface of each rotating shaft 205 is rotatably connected to the inner wall of the water storage frame 201. A sealed bearing 206 is fixedly connected to the outer surface of each rotating shaft 205. A water outlet pipe 8 is fixedly connected to the bottom surface of each water storage frame 201. A control valve 9 is fixedly connected to the outer surface of each water outlet pipe 8. The warm water in the water storage frame 201 after absorbing the heat of the flue gas can be discharged through the water outlet pipe 8. The staff can control the flow rate of the warm water and the pipe switch by opening the control valve 9. The warm water can be used for preheating water for kitchen cleaning, defrosting food, etc., to further maximize the utilization of the heat of the flue gas and reduce energy waste.

[0034] Please refer to this carefully. Figure 2 Each sealed bearing 206 has its outer ring fixedly connected to the inner wall of the water storage frame 201. Each rotating shaft 205 has two sets of stirring shafts 207 fixedly connected to its outer surface. The inner wall of the fixed frame 1 is fixedly connected to a guardrail 10 and a filter plate 11. The guardrail 10 can protect the entrance of the fixed frame 1 and prevent accidental collisions with internal components. The filter plate 11 can adsorb fine particles and oil stains and other harmful substances in the flue gas, effectively reducing the pollutant content in the emitted flue gas and reducing pollution to the atmospheric environment.

[0035] Please refer to this carefully. Figure 2 and Figure 3The fixed frame 1 is equipped with a flow guiding component 3, which includes two guide plates 301. The outer surface of each guide plate 301 is fixedly connected to the inner wall of the fixed frame 1. A flow dividing block 302 is fixedly connected to the inner wall of the fixed frame 1. A fan body 303 is fixedly connected to the bottom surface of the flow dividing block 302. The outer surface of the fan body 303 is fixedly connected to the inner wall of the fixed frame 1. The flow dividing block 302 can guide the flue gas to both sides of the fixed frame 1 so that it can contact the heat exchange fins 202 on the wall, reducing the heat conduction distance. The guide plates 301 make the high temperature flue gas form a uniform flow field in the fixed frame 1, avoiding the heat exchange fins 202 from being too long and affecting the heat exchange efficiency.

[0036] Please refer to this carefully. Figure 1 Each water storage frame 201 has a reinforcing block 12 fixedly connected to its upper and lower surfaces. The two sets of reinforcing blocks 12 are fixedly connected to the two sides of the fixed frame 1 on their respective sides. By using the reinforcing blocks 12, the connection strength between the water storage frame 201 and the fixed frame 1 can be further increased, thereby improving the service life.

[0037] Please refer to this carefully. Figure 1 A sealing gasket 13 is fixedly connected to the upper surface of flange 4. The bottom surface of the sealing gasket 13 is in contact with the upper surface of the fixed frame 1. The sealing gasket 13 can fully fill the gap between flanges 4 when they are joined, thus preventing leakage.

[0038] When using this utility model: First, the operator connects the servo motor 204 and the fan body 303 to the external power supply and controller to ensure that they are in a stable operating state. Then, the operator connects the flange 4 to the flue gas duct for installation. After that, the operator turns on the fan body 303 and the servo motor 204.

[0039] The fan body 303 generates negative pressure after it is turned on, which draws the high-temperature flue gas in the kitchen into the fixed frame 1. The high-temperature flue gas is first guided by the diversion block 302, which can guide the flue gas to both sides of the fixed frame 1 so that it can contact the heat exchange fins 202 on the wall, reducing the heat conduction distance. The guide plate 301 makes the high-temperature flue gas form a uniform flow field in the fixed frame 1.

[0040] At the same time, the heat exchange fins 202 on the inner wall of the fixed frame 1 are in full contact with the heat exchange fins 202. The heat exchange fins 202 quickly absorb the heat in the flue gas and transfer the heat to the water in the water storage frame 201. Meanwhile, the servo motor 204 drives the rotating shaft 205 to rotate, and the rotating shaft 205 drives the stirring shaft 207 to rotate continuously, so that the water in the water storage frame 201 forms a vortex, which enhances the heat exchange efficiency between the water and the heat exchange fins 202, ensuring that the heat can be transferred to the water quickly and evenly, and avoiding the lag in heat conduction caused by uneven local water temperature.

[0041] After heat exchange, the temperature of the flue gas is significantly reduced, and it is finally discharged through the pipe at the other end of the fixed frame 1. The warm water in the water storage frame 201, after absorbing heat, can be discharged through the water outlet pipe 8 for use in kitchen hot water supply, heating and other scenarios, realizing energy recovery and utilization. In addition, the filter plate 11 can filter fine particles and oil stains in the flue gas, further reducing the pollutant content in the emitted flue gas and protecting the atmospheric environment.

[0042] The foregoing has shown and described 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 self-filtering kitchen duct exhaust fan, comprising a fixed frame (1), characterized in that: A heat exchange mechanism (2) is provided on the outside of the fixed frame (1); The heat exchange mechanism (2) includes two water storage frames (201). The two water storage frames (201) are respectively fixedly connected to the two sides of the fixed frame (1) on their side closest to each other. The inner wall of the fixed frame (1) is fixedly connected to two heat exchange fins (202). The two water storage frames (201) are respectively fixedly connected to a fixed frame (203) on their side away from each other. The inner wall of each fixed frame (203) is fixedly connected to a servo motor (204). The output end of each servo motor (204) is fixedly connected to a rotating shaft (205). The outer surface of each rotating shaft (205) is rotatably connected to the inner wall of the water storage frame (201). The outer surface of each rotating shaft (205) is fixedly connected to a sealed bearing (206). The outer ring of each sealed bearing (206) is fixedly connected to the inner wall of the water storage frame (201). The outer surface of each rotating shaft (205) is fixedly connected to two sets of stirring shafts (207). The fixed frame (1) is provided with a drainage component (3).

2. The self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: The diversion component (3) includes two guide plates (301), the outer surface of each guide plate (301) is fixedly connected to the inner wall of the fixed frame (1), the inner wall of the fixed frame (1) is fixedly connected to a diversion block (302), the bottom surface of the diversion block (302) is fixedly connected to a fan body (303), and the outer surface of the fan body (303) is fixedly connected to the inner wall of the fixed frame (1).

3. The self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: The top of the fixed frame (1) is fixedly connected to a flange (4), and the upper surface of the flange (4) is provided with six connection holes (5).

4. A self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: Each of the water storage frames (201) has a water injection pipe (6) fixedly connected to its upper surface, and each of the water injection pipes (6) has a plug (7) threadedly connected to its inner wall.

5. A self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: Each of the water storage boxes (201) has a water outlet pipe (8) fixedly connected to its bottom surface, and each of the water outlet pipes (8) has a control valve (9) fixedly connected to its outer surface.

6. A self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: The inner wall of the fixed frame (1) is fixedly connected with a railing (10), and the inner wall of the fixed frame (1) is fixedly connected with a filter plate (11).

7. A self-filtering kitchen duct exhaust fan according to claim 1, characterized in that: Each of the water storage frames (201) has a reinforcing block (12) fixedly connected to its upper and lower surfaces. The two sets of reinforcing blocks (12) are fixedly connected to the two sides of the fixed frame (1) on their respective sides.

8. A self-filtering kitchen duct exhaust fan according to claim 3, characterized in that: A sealing gasket (13) is fixedly connected to the upper surface of the flange (4), and the bottom surface of the sealing gasket (13) is in contact with the upper surface of the fixed frame (1).

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