A heating stove

Abstract

The application discloses a heating stove, which is characterized by the following technical scheme: a first opening is arranged at the top of a stove shell, a primary air inlet, a secondary air inlet and a smoke outlet are arranged at the bottom of the stove shell, a fuel channel is arranged at the side of the stove shell, a stove pipe is arranged in the stove shell, and the stove pipe comprises an inner layer and an outer layer; a second opening is arranged at the top of the inner layer of the stove pipe, a combustion chamber is formed at the inner side of the inner layer of the stove pipe, an air inlet chamber is formed between the inner layer and the outer layer of the stove pipe, the primary air inlet is communicated with the combustion chamber, the secondary air inlet is communicated with the air inlet chamber, a flue gas channel is reserved between the outer layer of the stove pipe and the stove shell, the smoke outlet is communicated with the flue gas channel, and a first base is detachably arranged at the bottom of the stove shell. In this way, flue gas generated in the combustion chamber enters the flue gas channel formed by the reserved space between the outer side of the outer layer of the stove pipe and the inner side of the stove shell through the second opening, and then is discharged through the smoke outlet at the bottom. In this way, the heat exchange path of the flue gas and the stove shell is prolonged, and the waste of heat energy is reduced. Moreover, the compact volume of the heating stove is maintained, and the problem of increased space occupation is avoided.

Description

Technical Field

[0001] This application relates to the field of stove technology, specifically to a heating stove. Background Technology

[0002] In daily life, heating stoves are increasingly widely used as an important heating and cooking device. They not only provide a stable heat source for homes, small workshops, and other places, but also meet cooking needs such as boiling water and cooking, making them especially important in cold regions and areas with relatively scarce energy resources.

[0003] Currently, most heating stoves on the market discharge the flue gas produced during combustion directly through a flue located at the top of the stove. This method of exhaust causes a significant amount of heat to be lost directly into the environment during the discharge process, resulting in serious heat energy waste. Consequently, the heat utilization rate of heating stoves is generally low, which not only increases fuel consumption but also reduces the economic efficiency of the equipment.

[0004] To address the aforementioned heat waste issue, some technical solutions employ a side flue design, where a separate side flue is installed on the side of the combustion chamber to increase the heat exchange area between the flue gas and the furnace body, thereby improving thermal energy utilization. However, the addition of the side flue significantly increases the overall volume of the furnace body, occupying more space and disrupting its overall aesthetics. Furthermore, in this structure, the flue gas still enters directly from the combustion chamber into the fixed side flue, failing to fully exchange heat with the furnace body, resulting in limited improvement in heat utilization and indicating significant room for further improvement. Utility Model Content

[0005] Therefore, this application provides a heating stove to solve one or more of the technical problems in the prior art, such as heat waste caused by direct exhaust of flue gas, and increased stove volume, poor aesthetics, and limited improvement in heat utilization rate in side exhaust design.

[0006] To achieve the above objectives, this application provides a heating stove, including a furnace shell, a furnace liner and a first base. The furnace shell includes a first opening at the top, a primary air inlet, a secondary air inlet and a smoke outlet at the bottom, and a fuel passage on the side. A furnace cover is provided on the first opening, and a smoke exhaust pipe is connected to the bottom of the smoke outlet.

[0007] The furnace chamber is located inside the furnace shell and includes an inner layer and an outer layer, both with open bottoms. The top of the inner layer has a second opening opposite to the first opening, and the side wall of the inner layer has a first vent hole. The outer layer is located outside the inner layer and its top is connected to the inner layer to form a closed end. The bottoms of both the inner and outer layers are fixedly connected to the bottom wall of the furnace shell. A combustion chamber is formed on the inner side of the inner layer, and an air intake chamber is formed between the outer and inner layers. The combustion chamber is connected to the primary air inlet, and the air intake chamber is connected to the secondary air inlet. The first vent hole connects the combustion chamber and the air intake chamber. A reserved space between the outer side of the outer layer and the inner side of the furnace shell forms a flue gas passage. The flue gas outlet is connected to the flue gas passage. The fuel passage extends into the furnace shell and connects to the combustion chamber. A grate is provided inside the combustion chamber, and the height of the grate is not higher than the bottom height of the fuel passage.

[0008] The first base is detachably mounted on the bottom of the furnace shell. The first base has a hollow structure inside. The first base has a second vent hole on its side and a third opening on its upper part that communicates with the primary air inlet and the secondary air inlet.

[0009] Optionally, the furnace shell further includes a baking chamber, which is disposed in the flue gas passage inside the furnace shell, and the closed door at the opening end of the baking chamber is disposed on the outside of the furnace shell.

[0010] Optionally, the heating furnace also includes an ash collection drawer, which is openable and closable within the first base.

[0011] Further optionally, the heating furnace also includes an air damper, which includes an air cover plate and a tension rod. The air cover plate is placed inside the furnace shell and can cover the primary air inlet. One end of the tension rod is connected to the bottom of the air cover plate through the primary air inlet, and the other end of the tension rod extends laterally inside the first base to the outside of the first base.

[0012] Optionally, the heating stove further includes a fire cover door, which includes a fire cover plate, a rotating rod, and a handle. The fire cover plate is movably disposed above the second opening. One end of the rotating rod is connected to the top of the fire cover plate, and the other end of the rotating rod is rotatably connected to the furnace shell. One end of the handle is fixedly connected to the rotating rod, and the other end of the handle is on the outside of the furnace shell. The handle is used to rotate the rotating rod.

[0013] Optionally, the heater further includes a support and a tabletop, with the first base connected to the lower part of the support and the tabletop detachably mounted on the top of the support.

[0014] Alternatively, the heater may further include a clothes rack located at the bottom of the tabletop.

[0015] Optionally, the heating furnace further includes a heat insulation plate disposed on the side of the furnace shell.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] The heating furnace of this application forms a flue gas passage by placing the flue gas outlet at the bottom of the furnace shell and reserving space between the outer side of the outer layer of the furnace shell and the inner side of the furnace shell. The flue gas generated in the combustion chamber enters the flue gas passage through a second opening. Before exiting the furnace shell, the flue gas must flow through this flue gas passage and then exit through the flue gas outlet at the bottom. This extends the heat exchange path between the flue gas and the furnace shell, allowing the heat in the high-temperature flue gas to be fully transferred to the furnace shell and the surrounding environment, rather than being directly discharged to the outside, thereby reducing heat energy waste. Moreover, the flue gas passage is naturally formed by utilizing the reserved space between the outer side of the outer layer of the furnace shell and the inner side of the furnace shell, eliminating the need for an additional independent flue structure. While ensuring sufficient heat exchange of the flue gas, it maintains the compact size of the heating furnace, avoids the problem of increased space occupation, and maintains the integrity and aesthetics of the furnace structure. Attached Figure Description

[0018] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0019] Figure 1 This is a schematic diagram of the structure of a heating stove from a first view, provided in an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the structure of a heating stove from a second view, provided in an embodiment of this application.

[0021] Figure 3 Provided for the embodiments of this application Figure 1 AA section view;

[0022] Figure 4 A partial structural schematic diagram of a heating stove provided in an embodiment of this application;

[0023] Figure 5 Provided for the embodiments of this application Figure 3 Enlarged view of part B in the image.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Furnace outer shell; 101. First opening; 102. Primary air inlet; 103. Secondary air inlet; 104. Smoke outlet; 105. Fuel passage; 106. Baking chamber; 107. Opening; 2. Furnace liner; 201. Inner layer of the liner; 202. Outer layer of the liner; 203. Second opening; 204. First vent hole; 205. Combustion chamber; 206. Air inlet chamber; 3. First base; 301. Second vent hole; 302. 1. Third opening; 4. Ash collection drawer; 5. Air damper; 501. Air cover plate; 502. Extension rod; 6. Fire cover door; 601. Fire cover plate; 602. Rotating rod; 603. Handle; 7. Bracket; 701. Second base; 702. Column; 8. Tabletop; 801. Fourth opening; 9. Clothes hanging rod; 10. Heat insulation board; 11. Exhaust pipe; 12. Furnace cover; 13. Furnace grate; 14. Support base; 15. Closed door. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] refer to Figure 1-5 As shown, this embodiment provides a heating stove, including a furnace shell 1, a furnace liner 2, and a first base 3. The furnace shell 1 is a hollow shell structure. The top of the furnace shell 1 is provided with a first opening 101, and the bottom is provided with a primary air inlet 102, a secondary air inlet 103, and a smoke outlet 104 on the same plane. A fuel channel 105 is provided on the side. A furnace cover 12 is provided on the first opening 101, and a smoke exhaust pipe 11 is connected to the bottom of the smoke outlet 104.

[0028] The furnace chamber 2 is located inside the furnace shell 1 and includes an inner chamber layer 201 and an outer chamber layer 202, both of which are open at the bottom. The top of the inner chamber layer 201 has a second opening 203 opposite to the first opening 101, with a height difference between the first opening 101 and the second opening 203. Multiple first vent holes 204 are provided on the sidewall of the inner chamber layer 201. The outer chamber layer 202 is located outside the inner chamber layer 201, and its top is connected to the inner chamber layer 201 to form a closed end. The bottoms of both the inner chamber layer 201 and the outer chamber layer 202 are fixedly connected to the bottom wall of the furnace shell 1. A combustion chamber 205 is formed inside the inner chamber layer 201. Between the outer chamber layer 202 and the inner chamber layer 201... An intake chamber 206 is formed, and a combustion chamber 205 is connected to a primary air intake 102. The intake chamber 206 is connected to multiple secondary air intakes 103. For example, the multiple secondary air intakes 103 are evenly distributed around the primary air intake 102. The inner layer 201 covers the primary air intake 102, and the outer layer 202 covers the secondary air intakes 103. That is, air can only enter the combustion chamber 205 through the primary air intake 102, and air can only enter the intake chamber 206 through the secondary air intakes 103. The first vent 204 connects the combustion chamber 205 and the intake chamber 206, that is, air in the intake chamber 206 can enter the combustion chamber 205 through the first vent 204. In this way, air is directly supplied to the combustion chamber 205 through the primary air inlet 102, and oxygen is supplemented through the secondary air inlet 103 via the intake chamber 206 and the first vent 204. This staged air intake design ensures that the combustion chamber 205 receives sufficient oxygen at different combustion stages, promoting complete fuel combustion. This reduces the loss of incompletely burned fuel.

[0029] The outer side of the outer layer 202 and the inner side of the furnace shell 1 are reserved to form a flue gas passage. The flue gas outlet 104 is located on the outer side of the air inlet chamber 206 and is connected to the flue gas passage. The flue gas in the flue gas passage is finally discharged from the furnace shell 1 through the flue gas outlet 104.

[0030] The fuel passage 105 extends into the furnace shell 1 and communicates with the combustion chamber 205. A grate 13 is installed inside the combustion chamber 205, and the height of the grate 13 is not higher than the bottom height of the fuel passage 105. Combustible material is fed into the combustion chamber 205 through the combustion passage for combustion. A fuel passage door is provided at the feed inlet end of the fuel passage 105 (the end away from the combustion chamber 205) to prevent flue gas from overflowing.

[0031] The first base 3 is detachably mounted on the bottom of the furnace shell 1. The first base 3 is also a hollow shell structure. The first base 3 has multiple second vent holes 301 on its side. The first base 3 has a third opening 302 on its upper part that communicates with the primary air inlet 102 and the secondary air inlet 103. The first base 3 not only supports the furnace shell 1, but the second vent holes 301 on the first base 3 can ensure that air enters the first base 3 and then provides air to the combustion chamber 205 through the third opening 302, the primary air inlet 102 and the secondary air inlet 103, thus ensuring the oxygen content in the combustion chamber 205.

[0032] The heating furnace of this application forms a flue gas channel by placing the flue gas outlet 104 at the bottom of the furnace shell 1 and reserving space between the outer side of the outer layer 202 and the inner side of the furnace shell 1. The flue gas generated in the combustion chamber 205 enters the flue gas channel through the second opening 203. Before exiting the furnace shell 1, the flue gas must flow through this flue gas channel and then exit through the flue gas outlet 104 at the bottom. This extends the heat exchange path between the flue gas and the furnace shell 1, allowing the heat in the high-temperature flue gas to be fully transferred to the furnace shell 1 and the surrounding environment, rather than being directly discharged to the outside, thereby reducing heat energy waste. Moreover, the flue gas channel is naturally formed by utilizing the reserved space between the outer side of the outer layer 202 and the inner side of the furnace shell 1, eliminating the need for an additional independent flue structure. While ensuring sufficient heat exchange of the flue gas, it maintains the compact size of the heating furnace, avoids the problem of increased space occupation, and maintains the integrity and aesthetics of the furnace structure.

[0033] In one embodiment, the furnace shell 1 further includes a baking chamber 106, which is mainly used for baking or drying items. The baking chamber 106 is disposed in the flue gas passage inside the furnace shell 1, that is, the baking chamber 106 is independently disposed inside the furnace shell 1 and the top and bottom of the baking chamber 106 are reserved with the inner side of the furnace shell 1 for flue gas circulation. The opening end of the baking chamber 106 is fixedly connected to one side of the furnace shell 1. Preferably, the baking chamber 106 is on the opposite side of the fuel passage 105, extending from the outer side of the furnace shell 1 to its inner side. A space is left between the baking chamber 106 and the furnace liner 2 to allow flue gas circulation. The opening end of the baking chamber 106 is provided with an openable and closable door 15.

[0034] In one embodiment, the heater also includes an ash collection drawer 4 for collecting ash falling from the primary air inlet 102. The ash collection drawer 4 is closable and can be installed inside the first base 3. Specifically, the side wall of the first base 3 is provided with an opening through which the ash collection drawer 4 passes. The ash collection drawer 4 extends into or is pulled out of the first base 3 through the opening. The ash collection drawer 4 facilitates the collection of ash and the handling of ash after it is full. The ash collection drawer 4 extends into the interior of the first base 3 and is located below the primary air inlet 102. Ash produced by fuel combustion falls into the ash collection drawer 4. To clean the ash in the ash collection drawer 4, simply pull out the ash collection drawer 4.

[0035] In one embodiment, the heating furnace further includes an air damper 5 for opening and closing the primary air inlet 102 to regulate the airflow into the combustion chamber 205. The air damper 5 includes a cover plate 501 and a tension rod 502. The cover plate 501 is placed inside the furnace shell 1 and can cover the primary air inlet 102, i.e., the diameter of the cover plate 501 is larger than the diameter of the primary air inlet 102. One end of the tension rod 502 is connected to the bottom of the cover plate 501 through the primary air inlet 102, and the other end of the tension rod 502 extends laterally inside the first base 3 to the outside of the first base 3. The tension rod 502 is located above the ash collection drawer 4. Specifically, as shown... Figure 5 As shown, the cover plate 501 covers the primary air inlet 102. The side of the first base 3 is provided with a limiting hole that allows the tension rod 502 to move left and right. That is, the limiting hole limits the tension rod 502 in the front, back and up and down directions. The limiting hole is located above the ash collection drawer 4. The tension rod 502 includes a handle, a horizontal extension and a vertical extension. The handle is located on the outside of the first base 3. One end of the handle is fixedly connected to the horizontal extension. The horizontal extension extends into the first base 3 through the limiting hole. The extension direction of the horizontal extension is consistent with the insertion direction of the ash collection drawer 4. When the horizontal extension extends to the lower end of the primary air inlet 102 away from the handle, it extends upward to form a vertical extension. The vertical extension is connected to the bottom of the cover plate 501 through the primary air inlet 102. When the extension rod 502 is pulled out in the direction of the ash collection drawer 4, the cover plate 501 and the primary air inlet 102 gradually separate. When the vertical extension abuts against the edge of the primary air inlet 102, the damper 5 is fully opened. After the damper 5 is fully opened, the extension rod 502 is pushed in the direction of the ash collection drawer 4, and the cover plate 501 and the primary air inlet 102 gradually close. When the vertical extension abuts against the other edge of the primary air inlet 102, the damper 5 is fully closed.

[0036] In one embodiment, the heating stove further includes a fire cover door 6, which includes a fire cover plate 601, a rotating rod 602, and a handle 603. The fire cover plate 601 is movably disposed above the second opening 203. One end of the rotating rod 602 is connected to the top of the fire cover plate 601, and the other end of the rotating rod 602 is rotatably connected to the furnace outer shell 1. One end of the handle 603 is fixedly connected to the rotating rod 602, and the other end of the handle 603 is on the outside of the furnace outer shell 1. The handle 603 is used to rotate the rotating rod 602. Specifically, as shown... Figure 4As shown, the fire cover plate 601 is positioned above the second opening 203. The rotating rod 602 includes an integrally formed horizontally arranged horizontal part and a vertically arranged vertical part. The vertical part is rotatably mounted on the inner side wall of the furnace shell 1. The horizontal part extends towards the fire cover plate 601 and is connected to one side of the fire cover plate 601. An opening 107 is provided on the side wall of the furnace shell 1 corresponding to the vertical part. The handle 603 is fixedly connected to the vertical part through the opening 107. The opening 107 can limit the rotation direction of the handle 603. When the handle 603 is rotated, the handle 603 drives the vertical part to rotate, thereby the horizontal part drives the fire cover plate 601 to make a circular motion, so that the fire cover plate 601 is positioned above the second opening 203 or offset from the second opening 203. When the fire cover plate 601 is completely positioned above the second opening 203, a gap still exists between the fire cover plate 601 and the furnace liner 2, allowing the flue gas inside the furnace liner 2 to escape from the side of the fire cover plate 601. For example, spaced protruding ribs can be provided on the side of the second opening 203, with the height of the ribs exceeding the height of the second opening 203. These ribs provide support for the fire cover plate 601, thus maintaining the gap between the fire cover plate 601 and the second opening 203. The fire cover door 6 is primarily used to cover any flames escaping from the second opening 203, ensuring that no flames escape when the furnace cover 12 is opened.

[0037] In one embodiment, the heating furnace further includes a support 7 and a tabletop 8. The support 7 includes a second base 701 and multiple columns 702. The second base 701 is cuboid in shape. The columns 702 are fixedly placed at the four corners of the second base 701. A fixed crossbar is provided between adjacent columns 702. The tabletop 8 is detachably connected to the top of the columns 702. The tabletop 8 is provided with a fourth opening 801 at the position corresponding to the furnace cover 12. Preferably, the top of the furnace shell 1 is provided with a support seat 14 with an opening. The support seat 14 covers the first opening 101 and the opening of the support seat 14 is opposite to the first opening 101. Multiple rings of removable furnace covers 12 are provided on the opening of the support seat 14. The fourth opening 801 is fitted on the outside of the support seat 14. The first base 3 is detachably connected to the upper part of the second base 701.

[0038] The exhaust pipe 11 extends vertically downward through the first base 3, extends laterally in the second base 701 and exits from the side. An induced draft fan can be installed at the end of the exhaust pipe 11 away from the second base 701.

[0039] In one embodiment, the heating furnace further includes a clothes rack 9, which is detachably mounted on the bottom of the tabletop 8. For example, the tabletop 8 is rectangular in shape, and the clothes rack 9 is installed near the outer edge of the tabletop 8 and along the side length of the tabletop 8. Both ends of the clothes rack 9 are fixed to the bottom side of the tabletop 8 by fixing seats.

[0040] In one embodiment, the heating furnace also includes a heat insulation plate 10, which is disposed on the side of the furnace shell 1. Specifically, the heat insulation plate 10 can be provided with heat dissipation holes of different patterns, which not only does not affect heat dissipation, but also decorates the heating furnace, and can also prevent burns caused by the excessive temperature of the furnace shell 1 when heating.

[0041] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A heating stove, characterized in that, include: The furnace shell (1) includes a first opening (101) at the top, a primary air inlet (102), a secondary air inlet (103) and a smoke outlet (104) at the bottom, and a fuel passage (105) on the side. A furnace cover (12) is provided on the first opening (101), and a smoke exhaust pipe (11) is connected to the bottom of the smoke outlet (104). A furnace shell (2) is disposed inside the furnace outer shell (1), comprising an inner layer (201) and an outer layer (202) both open at the bottom. The top of the inner layer (201) is provided with a second opening (203) opposite to the first opening (101). The side wall of the inner layer (201) is provided with a first vent hole (204). The outer layer (202) is disposed outside the inner layer (201) and its top is connected to the inner layer (201) to form a closed end. The bottoms of both the inner layer (201) and the outer layer (202) are fixedly connected to the bottom wall of the furnace outer shell (1). A combustion chamber (205) is formed on the inner side of the inner layer (201), and an air intake chamber is formed between the outer layer (202) and the inner layer (201). (206), the combustion chamber (205) is connected to the primary air inlet (102), the air inlet chamber (206) is connected to the secondary air inlet (103), the first vent (204) is connected to the combustion chamber (205) and the air inlet chamber (206), the reserved space between the outer side of the outer layer of the furnace shell (202) and the inner side of the furnace shell (1) forms a flue gas passage, the flue gas outlet (104) is connected to the flue gas passage, the fuel passage (105) extends into the furnace shell (1) and is connected to the combustion chamber (205), a grate (13) is provided in the combustion chamber (205), and the height of the grate (13) is not higher than the height of the bottom of the fuel passage (105); The first base (3) is detachably disposed at the bottom of the furnace shell (1). The first base (3) has a hollow structure inside. The first base (3) has a second vent hole (301) on its side. The first base (3) has a third opening (302) on its upper part that communicates with the primary air inlet (102) and the secondary air inlet (103).

2. A heating stove according to claim 1, characterized in that, The furnace shell (1) also includes a baking chamber (106), which is located in the flue gas passage inside the furnace shell (1), and the closed door (15) at the opening end of the baking chamber (106) is located on the outside of the furnace shell (1).

3. A heating stove according to claim 1, characterized in that, The heating furnace also includes an ash collection drawer (4), which is openable and closable inside the first base (3).

4. A heating stove according to claim 3, characterized in that, The heating furnace also includes a damper (5), which includes a cover plate (501) and a tension rod (502). The cover plate (501) is placed inside the furnace shell (1) and can cover the primary air inlet (102). One end of the tension rod (502) is connected to the bottom of the cover plate (501) through the primary air inlet (102), and the other end of the tension rod (502) extends laterally inside the first base (3) to the outside of the first base (3).

5. A heating stove according to claim 1, characterized in that, The heating stove also includes a fire cover door (6), which includes a fire cover plate (601), a rotating rod (602), and a handle (603). The fire cover plate (601) is movably disposed above the second opening (203). One end of the rotating rod (602) is connected to the top of the fire cover plate (601), and the other end of the rotating rod (602) is rotatably connected to the furnace shell (1). One end of the handle (603) is fixedly connected to the rotating rod (602), and the other end of the handle (603) is on the outside of the furnace shell (1). The handle (603) is used to rotate the rotating rod (602).

6. A heating stove according to claim 1, characterized in that, The heating furnace also includes a support (7) and a tabletop (8), the first base (3) is connected to the lower part of the support (7), and the tabletop (8) is detachably mounted on the top of the support (7).

7. A heating stove according to claim 6, characterized in that, The heating stove also includes a clothes rack (9), which is located at the bottom of the tabletop (8).

8. A heating stove according to claim 1, characterized in that, The heating furnace also includes a heat insulation plate (10), which is disposed on the side of the furnace shell (1).

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