Chimney flue with heat recycling function
By introducing filter plates and limiting components into the chimney flue, the problem of traditional flues being unable to effectively filter harmful substances is solved, achieving reduced emissions of harmful substances and efficient operation of the flue.
Patent Information
- Application Number
- CN202423086027.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional heat recovery flues fail to effectively filter harmful substances in high-temperature flue gas, leading to environmental pollution.
A chimney flue with a filter plate and a limiting component was designed. The filter plate is used to filter harmful substances, and the limiting component facilitates the cleaning and replacement of the filter plate.
It effectively reduces the emission of harmful substances, improves air quality, and maintains the filtration efficiency and service life of the flue.
Smart Images

Figure CN223499604U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue technology, and in particular to a chimney flue with heat recovery and utilization function. Background Technology
[0002] With the acceleration of industrialization and the improvement of people's living standards, various industrial boilers, domestic heating boilers, gas water heaters and other equipment are widely used. During operation, these devices generate a large amount of high-temperature flue gas, which is directly discharged into the atmosphere through chimneys or flues. The heat in this high-temperature flue gas is generally recovered and utilized through heat recovery devices in the flue.
[0003] However, traditional chimneys and flues with heat recovery functions still have certain drawbacks. For example, high-temperature flue gas usually contains a large number of harmful substances, which are usually directly emitted into the atmosphere along with the flue gas, causing environmental pollution. Utility Model Content
[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a chimney flue with heat recovery and utilization function, which can effectively filter harmful substances in oil fumes, thereby reducing their emissions and improving air quality. The filter plate can be easily removed from the flue for cleaning or replacement, thereby maintaining the flue filtration efficiency and service life.
[0005] This utility model also provides a chimney flue with the above-mentioned heat recovery and utilization function, including:
[0006] The flue has an inlet pipe on its lower surface, a first shut-off valve on its outer surface, a connecting flange at its lower end, an outlet pipe on its upper surface, a spiral water pipe on its inner surface, an inlet at one end of the spiral water pipe, an outlet at the other end, a second shut-off valve on its outer surface, a third shut-off valve on its outer surface, a slot on its inner surface, a filter plate slidably connected to the inner surface of the slot, and a limit plate fixedly connected to the right surface of the filter plate.
[0007] A limiting assembly includes a fixed box, a sliding rod, a slider, an L-shaped limiting block, a spring, a fixed seat, a fixed post, a T-shaped handle, and a connecting seat. The inner surface of the fixed box is fixedly connected to the sliding rod, the outer surface of the slider is fixedly connected to the L-shaped limiting block, the lower surface of the L-shaped limiting block is fixedly connected to the spring, the inner surface of the fixed seat is fixedly connected to the fixed post, the outer surface of the fixed post is rotatably connected to the T-shaped handle, and the outer surface of the fixed box is fixedly connected to the connecting seat.
[0008] According to the chimney flue with heat recovery and utilization function, the outer surface of the connecting seat is provided with a slot, and the inner surface of the slot is adapted to the T-shaped handle to facilitate the temporary positioning of the L-shaped limiting block.
[0009] According to the chimney flue with heat recovery and utilization function, the outer surface of the fixed box is provided with a limiting groove, and the inner surface of the limiting groove is adapted to the slider to limit the movement of the slider.
[0010] According to the chimney flue with heat recovery function, the side surface of the limiting plate is provided with a handle to facilitate the removal of the filter plate.
[0011] According to the chimney flue with heat recovery and utilization function, the side surface of the flue is fixedly connected to the fixed box, and the side surface of the limiting plate is in contact with the L-shaped limiting block.
[0012] According to the chimney flue with heat recovery and utilization function, the outer surface of the slide rod is slidably connected to the slider, and the lower end of the spring is fixedly connected to the fixed box.
[0013] According to the chimney flue with heat recovery and utilization function, the outer surface of the L-shaped limiting block is fixedly connected to the fixed seat, and the outer surface of the L-shaped limiting block is slidably connected to the fixed box.
[0014] According to the chimney flue with heat recovery and utilization function, the side surface of the flue is in contact with the limiting plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By setting up a filter plate, harmful substances in cooking fumes can be effectively filtered, thereby reducing their emissions and improving air quality.
[0017] 2. By setting a limiting component, the filter plate can be easily removed from the flue for cleaning or replacement, thereby maintaining the flue filtration efficiency and service life.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0020] Figure 1 This is a schematic diagram of the overall structure of a chimney flue with heat recovery and utilization function according to the present invention.
[0021] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0022] Figure 3 This is a cross-sectional view of the overall structure of a chimney flue with heat recovery and utilization function according to this utility model.
[0023] Figure 4 This is a schematic diagram of the limiting component structure of a chimney flue with heat recovery and utilization function according to this utility model.
[0024] Legend:
[0025] 1. Flue; 2. Inlet pipe; 3. First shut-off valve; 4. Connecting flange; 5. Outlet pipe; 6. Spiral water pipe; 7. Inlet; 8. Outlet; 9. Second shut-off valve; 10. Third shut-off valve; 11. Slot; 12. Filter plate; 13. Limiting plate; 14. Limiting assembly; 15. Fixing box; 16. Slide rod; 17. Slider; 18. L-shaped limiting block; 19. Spring; 20. Fixing seat; 21. Fixing column; 22. T-shaped handle; 23. Connecting seat; 24. Slot; 25. Limiting slot; 26. Handle. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] Reference Figure 1-4 This utility model provides a chimney flue with heat recovery and utilization function, comprising: a flue 1, an inlet pipe 2 on the lower surface of the flue 1, a first shut-off valve 3 on the outer surface of the inlet pipe 2, a connecting flange 4 at the lower end of the inlet pipe 2, an outlet pipe 5 on the upper surface of the flue 1, a spiral water pipe 6 on the inner surface of the flue 1, an inlet 7 at one end of the spiral water pipe 6, an outlet 8 at the other end of the spiral water pipe 6, a second shut-off valve 9 on the outer surface of the spiral water pipe 6, a third shut-off valve 10 on the outer surface of the spiral water pipe 6, a slot 11 on the inner surface of the flue 1, a filter plate 12 slidably connected to the inner surface of the slot 11, a limit plate 13 fixedly connected to the right surface of the filter plate 12, a handle 26 on the side surface of the limit plate 13, and the side surface of the flue 1 in contact with the limit plate 13.
[0028] The limiting assembly 14 includes a fixed box 15, a sliding rod 16, a slider 17, an L-shaped limiting block 18, a spring 19, a fixed seat 20, a fixed post 21, a T-shaped handle 22, and a connecting seat 23. The inner surface of the fixed box 15 is fixedly connected to the sliding rod 16, the outer surface of the slider 17 is fixedly connected to the L-shaped limiting block 18, the lower surface of the L-shaped limiting block 18 is fixedly connected to the spring 19, the inner surface of the fixed seat 20 is fixedly connected to the fixed post 21, the outer surface of the fixed post 21 is rotatably connected to the T-shaped handle 22, and the outer surface of the fixed box 15 is fixedly connected to the connecting seat 23. The outer surface of the connecting seat 23 is provided with a slot 24, the inner surface of the slot 24 is adapted to the T-shaped handle 22, the outer surface of the fixing box 15 is provided with a limiting groove 25, the inner surface of the limiting groove 25 is adapted to the slider 17, the side surface of the flue 1 is fixedly connected to the fixing box 15, the side surface of the limiting plate 13 is in contact with the L-shaped limiting block 18, the outer surface of the slide rod 16 is slidably connected to the slider 17, the lower end of the spring 19 is fixedly connected to the fixing box 15, the outer surface of the L-shaped limiting block 18 is fixedly connected to the fixing seat 20, and the outer surface of the L-shaped limiting block 18 is slidably connected to the fixing box 15.
[0029] Working principle: During use, cold water is fed into the spiral water pipe 6 through the inlet 7, and then the first shut-off valve 3 is opened to allow flue gas to enter the flue 1. Under the heat of the flue gas, the cold water in the spiral water pipe 6 is heated and discharged through the third shut-off valve 10 for user use, thus realizing the recovery and utilization of heat in the flue gas. Furthermore, under the action of the filter plate 12, the flue gas entering the flue 1 is filtered before being discharged through the exhaust pipe 5, thereby reducing the pollution of the environment by harmful substances in the flue gas. When it is necessary to clean or replace the filter plate 12, simply pull the T-shaped handle 22 in opposite directions, causing the L-shaped limit block 18 to move downward along the slide rod 16 under the action of the slider 17, and causing the spring 1... Compression 9 releases the restriction on the limiting plate 13. Simultaneously, inserting the pulled-down T-shaped handle 22 into the slot 24 temporarily fixes the pulled-down L-shaped limiting block 18. Then, pulling the handle 26 allows for easy removal of the entire filter plate 12. The replaced or cleaned filter plate 12 can then be reinserted into the slot 11. When the flue 1 and the limiting plate 13 are tightly fitted, simply rotate the T-shaped handle 22 again around the fixing post 21 to disengage it from the slot 24. Subsequently, under the restoring force of the spring 19, the L-shaped limiting block 18 moves upward and engages with the limiting plate 13, thus achieving the limiting installation of the entire filter plate 12. This method is simple, convenient, and practical.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A chimney flue with heat recovery and utilization function, characterized in that, include: A flue (1) is provided with a flue pipe (2) on its lower surface. A first shut-off valve (3) is provided on the outer surface of the flue pipe (2). A connecting flange (4) is provided at the lower end of the flue pipe (2). A flue pipe (5) is provided on the upper surface of the flue (1). A spiral water pipe (6) is provided on the inner surface of the flue (1). A water inlet (7) is provided at one end of the spiral water pipe (6). A water outlet (8) is provided at the other end of the spiral water pipe (6). A second shut-off valve (9) is provided on the outer surface of the spiral water pipe (6). A third shut-off valve (10) is provided on the outer surface of the spiral water pipe (6). A slot (11) is provided on the inner surface of the flue (1). A filter plate (12) is slidably connected to the inner surface of the slot (11). A limit plate (13) is fixedly connected to the right surface of the filter plate (12). The limiting component (14) includes a fixed box (15), a slide bar (16), a slider (17), an L-shaped limiting block (18), a spring (19), a fixed seat (20), a fixed post (21), a T-shaped handle (22), and a connecting seat (23). The inner surface of the fixed box (15) is fixedly connected to the slide bar (16), the outer surface of the slider (17) is fixedly connected to the L-shaped limiting block (18), the lower surface of the L-shaped limiting block (18) is fixedly connected to the spring (19), the inner surface of the fixed seat (20) is fixedly connected to the fixed post (21), the outer surface of the fixed post (21) is rotatably connected to the T-shaped handle (22), and the outer surface of the fixed box (15) is fixedly connected to the connecting seat (23).
2. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The outer surface of the connector (23) is provided with a slot (24), and the inner surface of the slot (24) is adapted to the T-shaped handle (22).
3. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The outer surface of the fixing box (15) is provided with a limiting groove (25), and the inner surface of the limiting groove (25) is adapted to the slider (17).
4. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The side surface of the limiting plate (13) is provided with a handle (26).
5. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The side surface of the flue (1) is fixedly connected to the fixed box (15), and the side surface of the limiting plate (13) is in contact with the L-shaped limiting block (18).
6. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The outer surface of the slide bar (16) is slidably connected to the slider (17), and the lower end of the spring (19) is fixedly connected to the fixed box (15).
7. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The outer surface of the L-shaped limiting block (18) is fixedly connected to the fixed seat (20), and the outer surface of the L-shaped limiting block (18) is slidably connected to the fixed box (15).
8. A chimney flue with heat recovery and utilization function according to claim 1, characterized in that, The side surface of the flue (1) is in contact with the limiting plate (13).