Self-drainage chimney
By designing a self-draining chimney, utilizing windproof drainage devices and an inclined inner wall structure, the problem of water accumulation in the chimney is solved, enabling the automatic discharge of rainwater and condensate, and ensuring the stability and corrosion resistance of the chimney.
Patent Information
- Application Number
- CN202423019732.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing chimneys are prone to water accumulation during the exhaust process due to natural rainfall and condensation, which cannot be effectively discharged and affects normal operation.
A self-draining chimney was designed, which adopts a windproof drainage device and an inclined inner wall structure. Rainwater and condensate are automatically discharged through a water collection cover and drainage trough, and the stability of the chimney is ensured by a fixing device.
It effectively prevents rainwater backflow and condensation buildup, avoids equipment corrosion, and ensures the normal operation and drainage effect of the chimney.
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Figure CN223537664U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of chimney technology, and in particular to a self-draining chimney. Background Technology
[0002] A chimney is a structure that provides ventilation for hot flue gas or smoke from a boiler, furnace, stove, or fireplace. Chimneys are typically vertical, or as close to vertical as possible, to ensure a smooth flow of gas, drawing in air for combustion, or the chimney effect. The space inside a chimney is called a flue, and it can be found in buildings, steam locomotives, and ships. The height of a chimney affects its ability to transport flue gas to the external environment via the chimney effect. Chimneys are classified as single-tube, multi-tube, and double-tube chimneys, and by shape as circular, rectangular, and triangular chimneys.
[0003] Regarding the aforementioned technologies, the inventors believe that during the exhaust process of most chimneys, rainwater may enter the chimney from the top due to natural rainfall. Furthermore, in cold weather, the hot exhaust gas generated during its ascent inside the chimney will condense when it comes into contact with the inner wall of the chimney, causing water accumulation in the chimney, resulting in abnormal chimney operation and an inability to effectively discharge rainwater and condensate. Utility Model Content
[0004] The purpose of this application is to provide a self-draining chimney to improve the problem of not being able to drain rainwater and condensate.
[0005] This application provides a technical solution for a self-draining chimney, which adopts the following:
[0006] A self-draining chimney includes a fireplace body. A first flue is fixedly connected to the top of the fireplace body. A heat-resistant mesh is fixedly fitted onto the outer surface of the first flue. An elbow is connected through the top of the first flue. A second flue is connected through one end of the elbow. One end of the second flue is connected through a wall. A ash removal tee is fixedly fitted onto one end of the second flue. A third flue is fixedly fitted onto the top of the ash removal tee. Two fixing devices are fixedly fitted onto the outer surface of the third flue. A windproof and drainage device is fixedly connected to the top of the third flue. The windproof and drainage device includes a cover. A vent and a smoke exhaust port are respectively opened at the top and bottom of the cover. Four support rods are fixedly connected to the upper inner wall of the cover. One end of the four support rods is fixedly connected to a water collection cover. A through-type drainage groove is opened on the middle outer surface of the water collection cover. A first drain pipe is fixedly connected to the bottom of the drainage groove. One end of the first drain pipe passes through the cover.
[0007] By adopting the above technical solution, the flue gas is discharged upward through the first flue, the second flue, and the third flue. When it rains, the rainwater is blocked by the water collection cover fixedly connected inside the ventilation opening, so that the rainwater can be discharged through the drainage channel and the first drainage pipe, thereby achieving the effect of preventing rainwater backflow and automatically draining rainwater.
[0008] Optionally, the fixing device includes a retaining ring, one end of which is threadedly connected to a screw rod. Two first connecting plates are fixedly connected to the outer surface of the retaining ring. One end of each of the two first connecting plates is fixedly connected to an adjusting groove. Multiple second connecting plates are provided on the outer surfaces of the two adjusting grooves and the outer surfaces of the two first connecting plates. One end of each of the two adjusting grooves is fixedly connected to one end of the wall.
[0009] By adopting the above technical solution, one end of the retaining ring is continuously squeezed by the screw and nut, so that the inner surface of the retaining ring is continuously pressed against the outer surface of the third smoke pipe. Under the connection of the first connecting plate and the second connecting plate, it is fixed to one end of the wall, which helps to support and fix the third smoke pipe and prevent the third smoke pipe from tilting and shaking under the influence of external forces.
[0010] Optionally, a water collecting ring is fixedly attached to the lower inner wall of the third flue, and an annular water groove is provided at the top of the water collecting ring. A second drain pipe is connected through one end of the water collecting ring, and one end of the second drain pipe passes through the water collecting ring.
[0011] By adopting the above technical solution, the water collection ring and the annular water trough on the surface can collect condensate. When the condensate accumulates to a certain extent, it can be discharged outward through the second drain pipe at one end, thereby achieving the effect of collecting and discharging condensate.
[0012] Optionally, the top and bottom of the four covers are conical, and the covers are made of stainless steel.
[0013] By adopting the above technical solution, the conical ends facilitate the rapid flow of rainwater, making it less likely for rainwater to accumulate and preventing equipment from rusting and corroding due to water accumulation.
[0014] Optionally, the support rods are arranged in a ring array, and the water collection cover is a circular concave surface.
[0015] By adopting the above technical solution, the support rods arranged in a ring array serve to support the water collection cover. The purpose of the concave shape of the water collection cover is to facilitate the accumulation of rainwater inside the water collection cover through the inclined concave surface, and finally discharge it along the drainage channel by gravity.
[0016] Optionally, both the first drain pipe and the second drain pipe are set at an inclined angle.
[0017] By adopting the above technical solution, the first and second drainage pipes are set at an inclined angle to facilitate rainwater to flow out at an angle from the inner walls of the first and second drainage pipes by its own weight.
[0018] Optionally, the inner wall of the third smoke pipe is set at an inclined angle, and the inner wall of the third smoke pipe is coated with a waterproof layer.
[0019] The purpose of adopting the above technical solution is to facilitate the flow of condensate droplets formed on the inner wall of the third flue towards the water collection ring along the inclined surface. The waterproof coating is used to reduce the adhesion and penetration of water, making the accumulated water flow more easily.
[0020] Optionally, the bottom end of the cover is fixedly connected with multiple fixing pins, and the multiple fixing pins are distributed in a ring array.
[0021] By adopting the above technical solution, multiple fixing pins play a role in connecting and fixing the windproof and drainage device, making the windproof and drainage device more stable so as to cope with complex weather conditions.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. This utility model, by setting up a windproof and drainage device, allows rainwater to be deposited in the water collection cover on the concave surface through the ventilation opening and then discharged through the drainage channel. Condensate generated in the third flue slides down the inclined inner wall to the annular water channel and is discharged, effectively preventing water accumulation and corrosion and achieving a self-draining effect. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 This is a schematic diagram of the windproof and drainage device of this utility model.
[0026] Figure 3 This is a schematic diagram of the fixing device structure of this utility model.
[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the third smoke pipe of this utility model.
[0028] In the diagram: 1. Fireplace body; 2. Wall; 11. First flue; 12. Anti-scalding mesh; 13. Elbow; 14. Second flue; 15. Ash removal tee; 16. Third flue; 17. Fixing device; 18. Windproof and drainage device; 19. Cover; 20. Ventilation opening; 21. Smoke exhaust outlet; 22. Support rod; 23. Water collection cover; 24. Drainage trough; 25. First drain pipe; 26. Water collection ring; 27. Annular water trough; 28. Second drain pipe; 29. Snap ring; 30. Screw; 31. First connecting plate; 32. Second connecting plate; 33. Adjustment groove. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.
[0030] A self-draining chimney, as shown in the reference Figure 1 The fireplace includes a fireplace body 1, a first flue 11, an elbow 13, a second flue 14, and a third flue 16. All three components are continuously connected. One end of the second flue 14 is connected to a wall 2. A heat shield 12 is fixedly fitted onto the outer surface of the first flue 11. The heat shield 12 has multiple grooves on its outer surface to effectively block the high heat emitted by the first flue 11, preventing burns to operators from contact with it. The connection between the second flue 14 and the third flue 16 is fixedly connected to a dust removal tee 15. The bottom end of the dust removal tee 15 is equipped with a removable cover plate. The operator can remove the cover plate to clean the dust accumulated at the bottom of the dust removal tee 15 to prevent dust from clogging the pipe. The top end of the third flue 16 is fixedly installed with a windproof and drainage device 18 by multiple fixing pins. Two fixing devices 17 are fixedly snapped onto the outer surface of the third flue 16. One end of the two fixing devices 17 is fixedly connected to one end of the wall 2.
[0031] Reference Figure 2The windproof and drainage device 18 includes a cover 19. Ventilation openings 20 and smoke exhaust openings 21 are respectively provided at the upper and lower ends of the cover 19. Four support rods 22 arranged in a rectangular array are fixedly welded to the upper inner wall of the cover 19. One end of the four support rods 22 is fixedly connected to a water collection cover 23. The top of the water collection cover 23 is concave. A through-type drainage groove 24 is provided on the outer surface of the middle part of the water collection cover 23. A first drainage pipe 25 is fixedly welded to the bottom end of the drainage groove 24. One end of the first drainage pipe 25 penetrates the cover 19 at an inclined angle. Falling rainwater can accumulate under the obstruction of the water collection cover 23 through the ventilation openings 20. Due to the influence of gravity, it flows into the first drainage pipe 25 through the drainage groove 24 and finally exits the cover 19 through one end of the first drainage pipe 25. The top and bottom ends of the cover 19 are both conical, so that the outer surface of the cover 19 forms a certain inclined slope, allowing rainwater to flow along the inclined surface and preventing rainwater from accumulating on the surface of the cover 19, thereby realizing the process of rainwater drainage.
[0032] Reference Figure 3 The fixing device 17 includes a retaining ring 29 and a screw 30. One end of the retaining ring 29 is connected to the screw 30. The retaining ring 29 can be forced to undergo a two-sided squeezing motion by rotating the nut on the outer surface of the screw 30, causing the diameter of the retaining ring 29 to continuously shrink until it fits tightly against the outer surface of the third smoke pipe 16. Two first connecting plates 31 are fixedly welded to the outer surface of the retaining ring 29. One end of each of the two first connecting plates 31 is fixedly connected to an adjusting groove 33. One end of each adjusting groove 33 is fixedly connected to one end of the wall 2. Multiple adjusting grooves 33 are opened on the outer surfaces of the first connecting plates 31 and the adjusting grooves 33. The first connecting plates 31 and the adjusting grooves 33 can be connected and fixed by the insertion of the fixing pin through the multiple adjusting grooves 33. The operator can adjust the connection length between the first connecting plates 31 and the second connecting plates 32 through multiple second connecting plates 32, thereby ensuring the stability of the third smoke pipe 16 and preventing the third smoke pipe 16 from tilting or shaking.
[0033] Reference Figure 4 The inner wall of the third flue 16 is set at an inclined angle. The condensate generated by the contact between the flue gas and the inner wall of the third flue 16 can slide down along the inclined inner wall. A water collection ring 26 is fixedly connected to the lower inner wall of the third flue 16. An annular water groove 27 is opened on the outer surface of the water collection ring 26. One end of the water collection ring 26 is connected to a second drain pipe 28. One end of the second drain pipe 28 passes through the third flue 16 and is set at an inclined angle. The rainwater that slides down finally settles in the annular water groove 27. When the settled rainwater reaches a certain height, it can flow out and be discharged through the second drain pipe 28, which effectively reduces the accumulation of condensate on the inner wall of the third flue 16 and improves the drainage performance of the third flue 16.
[0034] The implementation principle of this application embodiment is as follows: The anti-scalding mesh 12 at the top of the fireplace body 1 prevents the operator from being burned by contacting the outer surface of the first flue 11. The smoke emitted from the fireplace body 1 passes through the top of the fireplace body 1, through the first flue 11, the elbow 13, the second flue 14, and finally through the third flue 16 to be discharged upwards. When the discharged smoke comes into contact with the inner wall of the third flue 16 and forms condensation droplets, the condensation water slides down the inclined inner wall of the third flue 16 under the influence of gravity to the water collection ring 26 that is snapped at the bottom. Inside the annular water tank 27, when the condensate in the annular water tank 27 accumulates to a certain height, the condensate is discharged outside the third smoke pipe 16 through the second drain pipe 28 with one end inclined. When it rains, the rainwater enters the windproof and drainage device 18 through the vent 20 at the top of the windproof and drainage device 18. Due to the obstruction of the water collection cover 23, the rainwater accumulates inside the water collection cover 23. The rainwater gathers in the middle of the water collection cover 23 and flows out through the drainage channel 24. Finally, it is discharged outward through the inclined first drain pipe 25.
[0035] When it is necessary to fix the third smoke pipe 16, the operator can use the retaining ring 29 in the fixing device 17 to fit onto the outer surface of the third smoke pipe 16. Then, by rotating the screw 30, the retaining ring 29 is continuously clamped and fixed to the outer surface of the third smoke pipe 16 through the continuous squeezing of the nut. After fixing, the first connecting plate 31 and the adjusting groove 33 are connected to one end of the two adjusting grooves 33 and one end of the wall 2 through the insertion and fixing of multiple bolts. The operator can adjust the connection length through the multiple second connecting plates 32 on the outer surface of the first connecting plate 31 and the adjusting groove 33, and finally achieve stable reinforcement of the third smoke pipe 16 to prevent tilting and shaking.
[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A self-draining chimney, comprising a fireplace body (1), characterized in that: The top of the fireplace body (1) is fixedly connected to a first flue (11), and an anti-scalding mesh (12) is fixedly sleeved on the outer surface of the first flue (11). The top of the first flue (11) is connected to an elbow (13), and one end of the elbow (13) is connected to a second flue (14). One end of the second flue (14) is connected to a wall (2), and one end of the second flue (14) is fixedly sleeved with a ash-cleaning tee (15). The top of the ash-cleaning tee (15) is fixedly sleeved with a third flue (16), and the outer surface of the third flue (16) is fixedly sleeved with two fixing devices (17). The top of the third flue (16) is fixedly connected with a windproof and drainage device (18). The windproof and drainage device (18) includes a cover (19), with a ventilation opening (20) and a smoke exhaust opening (21) at the top and bottom of the cover (19), respectively. Four support rods (22) are fixedly connected to the upper inner wall of the cover (19), and a water collection cover (23) is fixedly connected to one end of each of the four support rods (22). A through-type drainage groove (24) is opened on the outer surface of the middle part of the water collection cover (23), and a first drainage pipe (25) is fixedly connected to the bottom of the drainage groove (24). One end of the first drainage pipe (25) passes through the cover (19).
2. The self-draining chimney according to claim 1, characterized in that: The fixing device (17) includes a retaining ring (29), one end of which is threadedly connected to a screw (30). Two first connecting plates (31) are fixedly connected to the outer surface of the retaining ring (29). One end of each of the two first connecting plates (31) is fixedly connected to an adjusting groove (33). Multiple second connecting plates (32) are provided on the outer surfaces of the two adjusting grooves (33) and the outer surfaces of the two first connecting plates (31). One end of each of the two adjusting grooves (33) is fixedly connected to one end of the wall (2).
3. A self-draining chimney according to claim 1, characterized in that: A water collection ring (26) is fixedly attached to the lower inner wall of the third smoke pipe (16). An annular water groove (27) is provided at the top of the water collection ring (26). A second drain pipe (28) is connected to one end of the water collection ring (26). One end of the second drain pipe (28) passes through the water collection ring (26).
4. A self-draining chimney according to claim 1, characterized in that: The top and bottom of the four covers (19) are conical, and the covers (19) are made of stainless steel.
5. A self-draining chimney according to claim 1, characterized in that: The support rods (22) are arranged in a ring array, and the water collection cover (23) is a circular concave surface.
6. A self-draining chimney according to claim 1, characterized in that: The first drain pipe (25) and the second drain pipe (28) are both set at an inclined angle.
7. A self-draining chimney according to claim 3, characterized in that: The inner wall of the third smoke pipe (16) is set at an inclined angle, and the inner wall of the third smoke pipe (16) is coated with a waterproof layer.
8. A self-draining chimney according to claim 1, characterized in that: The bottom end of the cover (19) is fixedly connected with multiple fixing pins, and the multiple fixing pins are distributed in a ring array.