Heating stove with flue convenient to clean
By designing a dual flue structure and a traction system for cleaning brushes in the heating furnace, the flue blockage problem is solved, the heat exchange efficiency is improved, and the efficient operation of the heating furnace is ensured.
Patent Information
- Application Number
- CN202421115821.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The flue in the biomass heating furnace is prone to blockage after long use, reducing heat transfer efficiency and lacking effective cleaning methods.
A heating furnace including flue assembly and observation tube was designed. By setting up a dual flue structure and cleaning brush, the traction rope driven by the motor is used to realize vertical pulling of the cleaning brush, and the internal conditions of the flue are observed in conjunction with the observation tube to ensure timely Clean up smoke and extend the path of the flue to improve heat exchange efficiency.
It realizes timely cleaning of flue, extends the flue path, increases the heat exchange area, improves heat transfer efficiency, prevents smoke and dust, and ensures the operating efficiency of the heating furnace.
Smart Images
Figure CN222278624U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heating furnaces, and in particular to a heating furnace that facilitates flue cleaning. Background Art
[0002] Currently, biomass-burning heating furnaces are a type of heating equipment that uses biomass as fuel.
[0003] Biomass usually comes from crop straw, wood chips, etc. It is renewable. Compared with traditional fuels, biomass combustion emits fewer pollutants and the cost of biomass fuel is relatively low. The heating furnace transfers the heat generated by combustion to the circulating air, thereby achieving the effect of heating.
[0004] In actual use, there is a flue in the heating furnace, and the heat from the flue is transferred to the air. Long-term use will cause the smoke generated after the biomass combustion to adhere to the inner wall of the flue, causing the flue to be blocked and reducing the heat transfer efficiency. Utility Model Content
[0005] In order to clean the flue in time and ensure the heat transfer efficiency of the flue, the present application provides a heating furnace that is easy to clean the flue.
[0006] The present application provides a heating furnace that facilitates flue cleaning and adopts the following technical solution:
[0007] A heating furnace that is easy to clean the flue, includes a furnace shell and a furnace arranged inside the furnace shell, the top of the furnace shell is connected to a smoke outlet pipe, the furnace shell is provided with a flue assembly and an observation tube, the flue assembly is located inside the furnace shell, the flue assembly connects the smoke outlet pipe and the interior of the furnace; the observation tube is used to observe the flue assembly and the internal conditions of the furnace shell.
[0008] By adopting the above technical solution, biomass is burned in the furnace, and the flue gas generated after combustion carries heat and flows along the flue assembly. The flowing air absorbs the heat transferred from the flue assembly to form heat exchange. The setting of the observation tube is convenient for the user to observe the condition of the flue assembly in time, so that the user can clean the flue in time.
[0009] Optionally, the flue assembly includes an outer flue and an inner flue, the top of the inner flue is connected to the top of the furnace, the bottom end is connected to the bottom of the outer flue, and the top of the outer flue is connected to the smoke outlet pipe; the observation tube includes an upper fire-observing tube and a lower fire-observing tube, one end of the upper fire-observing tube is located outside the furnace shell, and the other end passes through the outer flue and is connected to the inside of the smoke outlet pipe, and the upper fire-observing tube penetrates the outer flue and is connected to the inside of the outer flue; one end of the lower fire-observing tube is located outside the furnace shell, and the other end passes through the outer flue and the inner flue in sequence and is connected to the inside of the furnace, and the lower fire-observing hole passes through the inner flue and is connected to the inside of the inner flue.
[0010] By adopting the above technical solution, the setting of the inner flue and the outer flue forms a double flue, which extends the flue path, increases the contact area with the air, and improves the efficiency of heat exchange; the setting of the upper fire viewing tube and the lower fire viewing tube can directly see the internal conditions of the inner flue and the outer flue, thereby achieving the effect of timely cleaning.
[0011] Optionally, the inner diameters of the upper fire-viewing tube and the lower fire-viewing tube gradually decrease in the direction approaching the furnace.
[0012] Optionally, a cleaning brush and a traction assembly are also provided in the furnace shell, wherein the cleaning brush is located inside the flue assembly and slides relative to the flue assembly in a vertical direction; the traction assembly includes a motor and a traction rope, wherein the motor is fixed on the outer wall of the furnace shell, and a winding wheel is fixed on the output end of the motor, one end of the traction rope is fixed to the outer wall of the winding wheel, and the other end passes through the observation tube and penetrates into the flue assembly to be fixedly connected with the cleaning brush.
[0013] By adopting the above technical solution, the motor is started, the winding wheel rotates, and the cleaning brush is pulled in the vertical direction by the traction rope. The cleaning brush cleans the smoke and dust adsorbed on the inner wall of the flue assembly, thereby preventing the smoke and dust from clogging the flue and ensuring the heat transfer efficiency of the flue assembly.
[0014] Optionally, the inner flue and the outer flue are both arranged along the furnace, and the cleaning brush includes an inner brush, an outer brush and a base. The inner brush and the outer brush are distributed on both sides of the base and abut against the inner wall of the inner flue or the inner wall of the outer flue. The inner brush and the outer brush are both rotatably connected to the base, and the rotating shaft coincides with the vertical center line of the furnace.
[0015] By adopting the above technical solution, the shapes of the inner flue and the outer flue limit the horizontal movement of the base, so that the base can move stably in the vertical direction. The inner brush and the outer brush are both rotatably connected to the base, providing rotation conditions for the inner brush and the outer brush to rotate relative to the base.
[0016] Optionally, a driven wheel and a steering gear are rotatably arranged on the base, the driven wheel and the steering gear are meshed, the center line of the driven wheel is arranged perpendicular to the center line of the steering gear, teeth are provided on the side wall of the inner brush close to the base and the side wall of the outer brush close to the base, and the steering gear is meshed with the teeth on the inner brush and the outer brush at the same time; the driven wheel is used for winding up the traction rope, and a coil spring for driving the driven wheel to rotate is arranged on the base.
[0017] By adopting the above technical solution, the motor starts and the winding wheel rotates, thereby starting to wind the winding traction rope, and the traction rope originally wound on the driven wheel is released, so that the driven wheel rotates, and the driven wheel drives the steering gear to rotate, and the steering gear drives the inner brush and the outer brush to rotate relative to the base, so that the inner brush and the outer brush can rotate at the same time during the upward movement of the base, thereby improving the cleaning efficiency of the inner wall of the flue assembly.
[0018] Optionally, a convex strip is fixed on the inner wall of the flue assembly, the convex strip is arranged in the vertical direction, a slot is opened on the base, and the convex strip passes through the slot.
[0019] By adopting the above technical solution, the arrangement of the convex strip and the slot enables the base to slide in the vertical direction along the convex strip, thereby limiting the horizontal rotation of the base.
[0020] Optionally, the upper fire-viewing tube and the lower fire-viewing tube are both cross-shaped.
[0021] By adopting the above technical solution, the cross-shaped upper fire viewing tube and the lower fire viewing tube can observe the internal situation of the flue assembly in all directions.
[0022] Optionally, two groups of the traction components and the cleaning brushes are provided corresponding to the inner flue and the outer flue.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The setting of the observation tube is convenient for the user to observe the status of the flue components in time, so that the user can clean the flue in time.
[0025] 2. The biomass is burned in the furnace, and the flue gas generated after the combustion carries the heat and flows along the flue assembly. The flowing air absorbs the heat transferred from the flue assembly to form a heat exchange. The motor is started, the reel rotates, and the cleaning brush is pulled in the vertical direction by the traction rope. The cleaning brush cleans the smoke and dust adsorbed on the inner wall of the flue assembly, thereby preventing the smoke and dust from clogging the flue and ensuring the heat transfer efficiency of the flue assembly.
[0026] 3. The setting of inner flue and outer flue forms a double flue, which extends the flue path, increases the contact area with air, and improves the efficiency of heat exchange;
[0027] 4. The setting of the upper fire viewing pipe and the lower fire viewing pipe can directly see the internal conditions of the inner and outer flue ducts, achieving the effect of timely cleaning. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;
[0029] Figure 2 is a vertical structural cross-sectional view of an embodiment of the present application;
[0030] Figure 3 It is a partial structural cross-sectional view showing the location of the cleaning brush;
[0031] Figure 4 This is a partial structural diagram showing the location of the card slot.
[0032] In the figure, 1, furnace shell; 11, furnace chamber; 12, smoke outlet pipe; 13, convex strip; 2, flue assembly; 21, outer flue; 22, inner flue; 221, air vent; 3, observation tube; 31, upper fire observation tube; 32, lower fire observation tube; 4, cleaning brush; 41, outer brush; 42, inner brush; 43, base; 431, slot; 5, traction assembly; 51, motor; 511, winding wheel; 52, traction rope; 6, driven wheel; 61, steering gear. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-Figure 4 This application is described in further detail.
[0034] The embodiment of the present application discloses a heating furnace which facilitates flue cleaning.
[0035] Example 1: Reference Figure 1 , Figure 2 and Figure 3 A heating furnace that is easy to clean the flue includes a furnace shell 1, the top of the furnace shell 1 is connected to a smoke outlet pipe 12, a flue assembly 2 and a furnace 11 are arranged inside the furnace shell 1, biomass burns in the furnace 11, the flue assembly 2 connects the inside of the furnace 11 and the smoke outlet pipe 12, the smoke formed by the combustion of biomass flows into the flue assembly 2 and finally flows out of the furnace shell 1 through the smoke outlet pipe 12, the air enters the furnace shell 1, absorbs the heat emitted by the flue assembly 2, and then flows out of the furnace shell 1, forming heat exchange, and the air inlet and outlet here are no longer drawn in the figure.
[0036] refer to Figure 2 The flue assembly 2 includes an outer flue 21 and an inner flue 22. The inner flue 22 and the outer flue 21 are both arranged along the furnace 11, that is, the inner flue 22 and the outer flue 21 are both hollow tubes with sealed ends. The outer flue 21 is sleeved outside the inner flue 22 with a distance between them, and the inner flue 22 is sleeved outside the furnace 11 with a distance between them. The top of the inner flue 22 is connected to the top of the furnace 11, and the bottom is connected to the bottom of the outer flue 21. The top of the outer flue 21 is connected to the smoke outlet pipe 12, thereby forming an S-shaped flue. The inner flue 22 is provided with air holes 221. The air holes 221 are arranged so that the air inside the furnace shell 1 forms an air passage, which is convenient for air circulation.
[0037] refer to Figure 2The observation tube 3 includes an upper fire-viewing tube 31 and a lower fire-viewing tube 32. One end of the upper fire-viewing tube 31 is located outside the furnace shell 1, and the other end passes through the outer flue 21 and communicates with the inside of the smoke outlet pipe 12. The upper fire-viewing tube 31 penetrates the outer flue 21 and communicates with the inside of the outer flue 21. The upper fire-viewing tube 31 is located above the lower fire-viewing tube 32; one end of the lower fire-viewing tube 32 is located outside the furnace shell 1, and the other end passes through the outer flue 21 and the inner flue 22 in sequence and communicates with the inside of the furnace 11. The lower fire-viewing hole passes through the inner flue 22 and communicates with the inside of the inner flue 22. Multiple upper fire-viewing tubes 31 and lower fire-viewing tubes 32 are provided, and all upper fire-viewing tubes 31 and lower fire-viewing tubes 32 are in a cross shape relative to the furnace shell 1. The ends of the upper fire-viewing tube 31 and the lower fire-viewing tube 32 located outside the furnace shell 1 are threadedly connected with a cover.
[0038] The difference between the second embodiment and the first embodiment is that a cleaning brush 4 is provided on the furnace shell 1, and the cleaning brush 4 is slidably arranged inside the flue assembly 2 for cleaning the inner wall of the flue assembly 2. The cleaning brush 4 slides in the vertical direction, and a traction assembly 5 for traction the cleaning brush 4 is provided on the furnace shell 1.
[0039] refer to Figure 3 and Figure 4 The cleaning brush 4 includes an inner brush 42, an outer brush 41 and a base 43. The inner brush 42 and the outer brush 41 are distributed on both sides of the base 43 and abut against the inner wall of the inner flue 22 or the inner wall of the outer flue 21. One cleaning brush 4 and one traction assembly 5 form a group. Two groups are provided corresponding to the inner flue 22 and the outer flue 21. Only one group is drawn in the drawings of this embodiment for explanation. The inner brush 42 and the outer brush 41 are both rotatably connected to the base 43, and the rotation axis coincides with the vertical center line of the furnace 11. The cleaning brush 4 is also annular in shape to conform to the shape of the flue assembly 2, and the cleaning brush 4 is a steel brush.
[0040] refer to Figure 1 and Figure 4 The traction assembly 5 includes a motor 51 and a traction rope 52. The motor 51 is fixed on the outer wall of the furnace shell 1. A winding wheel 511 is fixed to the end of the rotating shaft of the motor 51. One end of the traction rope 52 is fixed on the winding wheel 511. The traction rope 52 is wound around the winding wheel 511. The other end of the traction rope 52 goes deep into the flue assembly 2 from the observation tube 3 and is connected to the cleaning brush 4.
[0041] refer to Figure 3 and Figure 4A driven wheel 6 and a steering gear 61 are rotatably arranged on the base 43, the driven wheel 6 and the steering gear 61 are meshed, the center line of the driven wheel 6 is arranged perpendicular to the center line of the steering gear 61, and the center line of the driven wheel 6 is arranged in the horizontal direction. The end of the traction rope 52 close to the cleaning brush 4 is fixed to the outer wall of the driven wheel 6, the traction rope 52 is wound around the driven wheel 6, and a coil spring is arranged on the rotating shaft of the driven wheel 6. The rebound force generated by the coil spring causes the driven wheel 6 to rotate and reset, and the coil spring is no longer shown in the figure. Teeth are provided on the side wall of the inner brush 42 close to the base 43 and on the side wall of the outer brush 41 close to the base 43, the steering gear 61 is meshed with the teeth on the inner brush 42 and the outer brush 41 at the same time, and the cross section of the base 43 is convex.
[0042] refer to Figure 3 and Figure 4 A convex strip 13 is fixed on the inner wall of the flue assembly 2 , and the convex strip 13 is arranged in the vertical direction. A slot 431 is opened on the base 43 , and the convex strip 13 passes through the slot 431 .
[0043] The implementation principle of a heating furnace that is easy to clean the flue in an embodiment of the present application is as follows: biomass is burned in the furnace 11, and the flue gas generated after the combustion carries the heat and flows along the flue component 2, and the flowing air absorbs the heat transferred from the flue component 2 to form a heat exchange, and the motor 51 is started, the winding wheel 511 rotates, and the cleaning brush 4 is pulled in the vertical direction by the traction rope 52, and the cleaning brush 4 cleans the smoke and dust adsorbed on the inner wall of the flue component 2, thereby preventing the smoke and dust from clogging the flue and ensuring the heat transfer efficiency of the flue component 2.
[0044] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A heating furnace that facilitates flue cleaning, comprising a furnace shell (1) and a furnace (11) arranged inside the furnace shell (1), a smoke outlet pipe (12) being connected to the top of the furnace shell (1), characterized in that: The furnace shell (1) is provided with a flue assembly (2) and an observation tube (3); the flue assembly (2) is located inside the furnace shell (1), and the flue assembly (2) is connected to the smoke outlet pipe (12) and the interior of the furnace (11); the observation tube (3) is used to observe the internal conditions of the flue assembly (2) and the furnace shell (1).
2. A heating furnace that facilitates flue cleaning according to claim 1, characterized in that: The flue assembly (2) comprises an outer flue (21) and an inner flue (22); the top end of the inner flue (22) is connected to the top of the furnace (11), and the bottom end is connected to the bottom end of the outer flue (21); the top end of the outer flue (21) is connected to the smoke outlet pipe (12); the observation tube (3) comprises an upper fire observation tube (31) and a lower fire observation tube (32); one end of the upper fire observation tube (31) is located outside the furnace shell (1), and the other end passes through the outer flue (21) and is connected to the inside of the smoke outlet pipe (12); the upper fire observation tube (31) penetrates the outer flue (21) and is connected to the inside of the outer flue (21); one end of the lower fire observation tube (32) is located outside the furnace shell (1), and the other end passes through the outer flue (21) and the inner flue (22) in sequence and is connected to the inside of the furnace (11); the lower fire observation hole passes through the inner flue (22) and is connected to the inside of the inner flue (22).
3. A heating furnace that facilitates flue cleaning according to claim 2, characterized in that: In a direction approaching the furnace (11), the inner diameters of the upper fire-viewing tube (31) and the lower fire-viewing tube (32) gradually decrease.
4. A heating furnace that facilitates flue cleaning according to claim 2, characterized in that: A cleaning brush (4) and a traction assembly (5) are also provided in the furnace shell (1); the cleaning brush (4) is located inside the flue assembly (2) and slides relative to the flue assembly (2) in a vertical direction; the traction assembly (5) comprises a motor (51) and a traction rope (52); the motor (51) is fixed to the outer wall of the furnace shell (1); a winding wheel (511) is fixed to the output end of the motor (51); one end of the traction rope (52) is fixed to the outer wall of the winding wheel (511), and the other end of the traction rope (52) passes through the observation tube (3) and penetrates into the flue assembly (2) to be fixedly connected to the cleaning brush (4).
5. A heating furnace that facilitates flue cleaning according to claim 4, characterized in that: The inner flue (22) and the outer flue (21) are both arranged around the furnace (11); the cleaning brush (4) comprises an inner brush (42), an outer brush (41) and a base (43); the inner brush (42) and the outer brush (41) are distributed on both sides of the base (43) and abut against the inner wall of the inner flue (22) or the inner wall of the outer flue (21) adjacent thereto; the inner brush (42) and the outer brush (41) are both rotatably connected to the base (43), and the rotation axis coincides with the vertical center line of the furnace (11).
6. A heating furnace that facilitates flue cleaning according to claim 5, characterized in that: A driven wheel (6) and a steering gear (61) are rotatably arranged on the base (43), the driven wheel (6) and the steering gear (61) are meshed, the center line of the driven wheel (6) is arranged perpendicular to the center line of the steering gear (61), teeth are provided on the side wall of the inner brush (42) close to the base (43) and the side wall of the outer brush (41) close to the base (43), and the steering gear (61) is meshed with the teeth on the inner brush (42) and the outer brush (41) at the same time; the driven wheel (6) is used for winding up the traction rope (52), and a coil spring for driving the driven wheel (6) to rotate is arranged on the base (43).
7. A heating furnace that facilitates flue cleaning according to claim 6, characterized in that: A convex strip (13) is fixed on the inner wall of the flue assembly (2), the convex strip (13) is arranged in a vertical direction, a clamping groove (431) is provided on the base (43), and the convex strip (13) passes through the clamping groove (431).
8. A heating furnace that facilitates flue cleaning according to claim 2, characterized in that: The upper fire-viewing tube (31) and the lower fire-viewing tube (32) are both cross-shaped.
9. A heating furnace that facilitates flue cleaning according to claim 4, characterized in that: The traction assembly (5) and the cleaning brush (4) are provided in two groups corresponding to the inner flue (22) and the outer flue (21).