A heating furnace with uniform heat dissipation

Abstract

The present invention relates to the field of heating equipment and discloses a heating stove with uniform heat dissipation, comprising a panel, a stove barrel, a foot box, and a burner. The stove barrel comprises an inner barrel and an outer barrel arranged in a sleeve, a lower exhaust duct formed between the inner and outer barrels, the top of the lower exhaust duct communicating with the inner space of the inner barrel, and an air inlet connected to the inner space of the inner barrel provided on the foot box. Multiple vertical upper exhaust ducts are uniformly distributed circumferentially on the outer wall of the outer barrel. An upper sealed box communicating with the upper exhaust duct is provided at the bottom of the panel, the upper sealed box being provided with exhaust ports. The foot box comprises a lower sealed box, multiple lower exhaust ports and multiple upper exhaust ports distributed in an annular pattern on the lower sealed box, the lower exhaust ports communicating with the lower exhaust duct, and the upper exhaust ports communicating with the upper exhaust duct. The present invention increases the heat dissipation area of the entire stove body, achieving uniform heat dissipation throughout the stove body, improving the thermal efficiency of the fuel and the heating effect, while simultaneously solving the problem of a cold foot box in conventional stoves and having good market prospects.

Description

Technical Field

[0001] The present invention relates to the field of heating equipment, and in particular to a heating furnace with uniform heat dissipation. Background Art

[0002] Currently, the stoves commonly used for home heating are wood-fired stoves, coal-fired stoves, or electric stoves. Electric stoves are mostly single-purpose heating stoves, while most combustion stoves, such as wood-fired and coal-fired stoves, combine cooking and heating functions. Due to their ease of use, combustion stoves with both cooking and heating functions are more popular. However, existing combustion stoves, on the one hand, use firewood or coal as fuel, which damages the environment when they are obtained. Furthermore, firewood and coal are not clean energy sources. When used, the combustion of the fuel produces large amounts of flue gas, which seriously pollutes the environment. When some harmful gases are not effectively discharged, they pose a safety hazard to people, thus failing to meet increasingly stringent environmental protection requirements. On the other hand, existing combustion stoves, in order to expel flue gas as quickly as possible and reduce the accumulation of soot within the furnace, often use a straight exhaust duct running from bottom to top. While this method allows for faster exhaust, it also rapidly loses a significant amount of heat energy in the flue gas, resulting in energy waste. Furthermore, the heat distribution between the upper and lower parts of the furnace is uneven, resulting in poor heating performance. Summary of the Invention

[0003] The present invention aims to provide a heating furnace with uniform heat dissipation, so as to solve the problem of uneven heat distribution between the upper and lower parts of the combustion furnace in the prior art and poor heating effect.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a heating stove with uniform heat dissipation, comprising a panel, a furnace barrel, a foot box and a burner, the furnace barrel comprising an inner barrel and an outer barrel arranged in a sleeve, the outer barrel being connected between the foot box and the panel, the bottom end of the inner barrel being connected to the foot box, a lower exhaust duct being formed between the inner barrel and the outer barrel, the top end of the lower exhaust duct being connected to the inner space of the inner barrel, and an air inlet being connected to the inner space of the inner barrel being provided on the foot box; a plurality of vertical upper exhaust ducts being uniformly distributed circumferentially on the outer wall of the outer barrel, an upper sealed box being connected to the upper exhaust duct being provided at the bottom of the panel, the upper sealed box being provided with an exhaust outlet, the foot box comprising a lower sealed box, a plurality of lower exhaust outlets and a plurality of upper exhaust outlets being distributed in a ring shape on the lower sealed box, the lower exhaust outlet being connected to the lower exhaust duct, and the upper exhaust outlet being connected to the upper exhaust duct.

[0005] The principle and advantages of this solution are as follows: in actual application, the fuel burns in the inner barrel through the burner, and the air inlet provides air to the inner barrel to ensure smooth combustion. The hot air generated by the combustion enters from the top of the lower exhaust duct, then passes downward through the lower exhaust port into the lower sealed box, then enters the upper exhaust duct from the upper exhaust port, then enters the upper sealed box from the upper exhaust duct, and finally is discharged from the exhaust port. This structure allows the hot air to first enter the lower sealed box downward, and through the annular lower and upper exhaust ports, the hot air is distributed throughout the lower sealed box, fully heating the foot box, and then enters the upper exhaust duct, where it exchanges heat with the lower exhaust duct while dissipating heat to the outside. The hot air that has undergone heat exchange in the upper exhaust duct still maintains a certain temperature, passes through the upper exhaust duct, enters the upper sealed box, heats the upper sealed box and the panel, and is then discharged. The heat dissipation duct formed in this way allows the heat energy generated by combustion to flow fully in the furnace body along with the air flow, fully utilizing the heat energy generated by combustion, so that the heat energy is relatively evenly distributed in the upper, middle and lower parts of the furnace body, and evenly heats the environment around the furnace body. The heating effect obtained using such a heating furnace is significantly better than that of existing technology products.

[0006] Preferably, as an improvement, the lower air outlet and the upper air outlet are alternately distributed in a circular pattern. In this way, the hot air can flow evenly in the circumference during the process of passing through the lower sealed box, so that the lower sealed box and the foot box are fully and evenly heated, and the legs and feet can obtain a better heating effect when using.

[0007] Preferably, as an improvement, multiple groups of annularly distributed ribs are provided in the lower sealed box. The upper and lower ends of the ribs are sealed and fixed to the inner wall of the lower sealed box. The inner side of each group of ribs is a lower horizontal air inlet channel, and the space between two adjacent groups of ribs is a lower horizontal air outlet channel. The lower air outlet is connected to the lower horizontal air inlet channel, and the upper air outlet is connected to the lower horizontal air outlet channel. In this way, hot air can flow fully in the circumferential and radial directions when passing through the lower sealed box, and first flows outward from the lower air outlet in the radial direction, and then returns to the inside to enter the upper air outlet. In the process, a heat exchange is completed, so that the heat energy is evenly distributed, so that the foot box is fully and evenly heated, the heat energy is fully utilized, and the heat energy loss is effectively reduced under the same heating effect.

[0008] Preferably, as an improvement, connecting plates are provided on both the upper and lower sections of the inner barrel, and the burner can be detachably connected to either the upper or lower connecting plates. When used for cooking, the burner is connected to the upper connecting plate, allowing the fire to directly heat the pot, resulting in a better heating effect. When used for heating, the burner is connected to the lower connecting plate, allowing the hot air generated by combustion to first rise within the inner barrel before entering the lower exhaust duct. This allows the energy-rich hot air to fully remain within the furnace body for heat exchange, thereby improving thermal energy utilization and achieving a higher cost-effectiveness for heating.

[0009] Preferably, as an improvement, the edge of the panel is provided with an upper rib located on the outside of the upper sealed box, and the exhaust port is provided on the side wall of the upper sealed box facing the upper rib, and there are multiple exhaust ports distributed along the circumference of the upper sealed box. In this way, the exhaust can be discharged evenly and at a low speed from the circumference of the panel through multiple exhaust ports, which is conducive to ensuring the uniformity of panel heating. The rib blocks the airflow and reduces the impact of combustion exhaust emissions on the surrounding environment. When using clean energy such as methanol-based fuel, it can prevent the breathing of people who are heating around from being affected. This also forms a concealment of the exhaust port, making the appearance of the heating furnace more beautiful and the usable area on the panel larger.

[0010] Preferably, as an improvement, a furnace opening is provided in the middle of the panel, the furnace opening being located above the burner, and a cover ring is detachably connected to the furnace opening. In this way, the cover ring can be removed to allow cooking by the fire at the burner, and the cover ring can be covered to effectively prevent heat energy from being lost from the furnace opening, so that the furnace can be used for both cooking and heating, which is more convenient to use.

[0011] Preferably, as an improvement, the foot box also includes an outer tub plate surrounding the outer side of the lower sealed box. The air inlet is provided on the outer tub plate. The lower sealed box is annular, and the air inlet communicates with the inner tub through the middle of the lower sealed box. This outer tub plate serves as the bottom support of the heating furnace, reducing heat loss from the lower part of the foot box, ensuring the overall heating effect of the foot box. Furthermore, a one-way airflow path is formed within the entire furnace body, with air intake from the bottom and exhaust from the top, further improving heat energy utilization.

[0012] Preferably, as an improvement, the air inlets are evenly distributed circumferentially on the upper portion of the outer tub, and a lower rib is provided on the edge of the foot box, located outside the air inlets. This allows for uniform circumferential air intake, prevents foreign objects on the ground from blocking the air inlets, and ensures stable air intake. The lower rib conceals and protects the air inlets, preventing them from being blocked by legs, clothing, or other foreign objects close to the ground.

[0013] Preferably, as an improvement, the burner head is connected to a fuel pipe. This fuel pipe allows for connection to gaseous or liquid fuel. A fuel tank storing gaseous or liquid fuel can be placed in the space below the lower sealed box and inside the outer barrel plate, providing greater convenience. Furthermore, the burner can be adapted to supply clean energy sources such as methanol-based fuel.

[0014] Preferably, as an improvement, there is only one exhaust port, which is connected to the top of the panel and is connected to a smoke pipe. In this way, if the exhaust gas from the combustion of the fuel contains harmful components or the indoor air flow is poor, the exhaust gas can be discharged to the outside through the smoke pipe. This configuration can also be used when burning coal or firewood on the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of an embodiment of the present invention.

[0016] Figure 2 It is a front view of an embodiment of the present invention.

[0017] Figure 3 It is a cutaway perspective view of an embodiment of the present invention.

[0018] Figure 4 2 is a cross-sectional view of an embodiment of the present invention.

[0019] Figure 5 This is a top view of the upper portion of the foot box after horizontal sectioning according to an embodiment of the present invention.

[0020] Figure 6 It is a top view of a horizontally cut panel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The figure marks in the drawings of the specification include: panel 1, upper sealing box 11, upper air inlet 12, exhaust outlet 13, cover ring 14, furnace barrel 2, inner barrel 21, outer barrel 22, upper exhaust duct 23, lower exhaust duct 24, foot box 3, lower sealing box 31, lower exhaust outlet 32, upper exhaust outlet 33, rib 34, lower horizontal air inlet channel 35, lower horizontal air outlet channel 36, outer barrel plate 37, air inlet 38, burner head 4, fuel pipe 41.

[0023] Example 1, basically as in the attached Figure 1 、 Figure 2 As shown: A heating stove with uniform heat dissipation, including a panel 1, a furnace barrel 2, a foot box 3 and a furnace head 4. The panel 1 is annular, and the hole in the middle of the panel 1 is the furnace mouth, and a cover ring 14 is placed at the furnace mouth. Figure 4 、 Figure 6 As shown, the edge of the panel 1 is folded downward to form an upper rib, and a coaxial annular upper sealing box 11 is welded to the bottom of the panel 1. The outer contour of the upper sealing box 11 is a regular hexagon, and three side-by-side exhaust ports 13 are provided on each edge side wall of the upper sealing box 11, and the exhaust ports 13 face the upper rib.

[0024] Combine Figure 3 、 Figure 4As shown, the furnace barrel 2 comprises a sleeved inner barrel 21 and outer barrel 22. The top of the outer barrel 22 is welded to the inner hole side wall of the upper sealed box 11, and the bottom of the outer barrel 22 is welded to the foot box 3. The inner barrel 21 is located below the furnace mouth, and the bottom of the inner barrel 21 is welded to the foot box 3. A lower exhaust duct 24 is formed between the inner barrel 21 and the outer barrel 22, and the top of the lower exhaust duct 24 communicates with the inner space of the inner barrel 21. Twelve vertical upper exhaust ducts 23 are evenly distributed circumferentially on the outer wall of the outer barrel 22. The upper exhaust ducts 23 are welded to the outer barrel 22. Twelve upper air inlets 12 are arranged in a circular pattern at the bottom of the upper sealed box 11. The tops of the upper exhaust ducts 23 are welded to the bottom of the upper sealed box 11 and communicate with the interior of the upper sealed box 11 through the upper air inlets 12.

[0025] Combine Figure 3 、 Figure 6 As shown, the foot box 3 comprises a circular lower sealed box 31. The top plate of the lower sealed box 31 serves as a footrest. The footrest extends upward from the inner hole of the lower sealed box 31 to form an annular positioning plate. The bottom end of the inner barrel 21 is inserted into the positioning plate and welded to it. Twelve lower exhaust ports 32 and twelve upper exhaust ports 33 are arranged in a circular pattern around the positioning plate on the footrest. The bottom end of the outer barrel 22 is welded to the footrest between the lower and upper exhaust ports 32, 33, connecting the lower exhaust ports 32 to the lower exhaust duct 24. The bottom end of the upper exhaust duct 23 is welded to the footrest and connects to the lower sealed box 31 through the upper exhaust ports 33.

[0026] The lower air outlet 32 and the upper air outlet 33 are alternately distributed in a circular pattern. Figure 5 As shown, twelve groups of annularly distributed ribs 34 are provided in the lower sealed box 31. The upper and lower ends of the ribs 34 are sealed and fixed to the inner wall of the lower sealed box 31. One side end of the rib 34 is welded to the side wall of the inner hole of the lower sealed box 31, and the other side end faces the outer wall of the lower sealed box 31. The inner side of each group of ribs 34 is a lower horizontal air inlet channel 35, and the lower horizontal air outlet channel 36 is between two adjacent groups of ribs 34. The lower horizontal air inlet channel 35 and the lower horizontal air outlet channel 36 are connected through the gap between the ribs 34 and the outer wall of the lower sealed box 31, the lower air outlet 32 is connected to the lower horizontal air inlet channel 35, and the upper air outlet 33 is connected to the lower horizontal air outlet channel 36.

[0027] Combine Figure 3 As shown, an outer barrel plate 37 surrounds the outside of the lower sealed box 31, and the foot pedal extends horizontally to the outside of the lower sealed box 31. The top of the outer barrel plate 37 is welded to the foot pedal. Several air inlets 38 are evenly distributed circumferentially on the upper part of the outer barrel plate 37. The air inlet 38 is connected to the inner barrel 21 through the inner hole in the middle of the lower sealed box 31. The edge of the foot pedal is folded downward to form a lower rib located on the outside of the air inlet 38.

[0028] Connecting plates are welded on the upper inner wall and the lower inner wall of the inner barrel 21 , and the burner head 4 can be detachably connected to the upper connecting plate or the lower connecting plate by bolts. The burner head 4 is connected to the fuel pipe 41 .

[0029] The specific implementation process is as follows: The burner 4 is supplied with fuel via a fuel pipe 41. Fuel can be gaseous fuels such as coal gas and liquefied petroleum gas, or liquid fuels such as methanol-based fuels. When using methanol-based fuel, a fuel tank can be placed below the lower sealed box 31. Methanol-based fuel is preferred, as the combustion gases contain fewer harmful substances and are cleaner and more environmentally friendly. The fuel burns in the burner 4, and air enters through the air inlet 38, providing an oxygen environment for the fuel combustion. Hot gases generated by combustion in the inner barrel 21 enter the lower exhaust duct 24 from above the inner barrel 21, and then enter the lower horizontal air inlet duct 35 in the lower sealed box 31 through the lower exhaust duct 32. The hot gases flow outward through the lower horizontal air inlet duct 35 before entering the lower horizontal air outlet duct 36. From there, they flow inward through the lower horizontal air outlet duct 36 and into the upper exhaust duct 33. During this process, the hot gases diffuse and flow fully and evenly within the lower sealed box 31, fully and evenly heating the foot box 3 and providing uniform and stable warmth to the user's legs and feet. Hot air enters the upper exhaust duct 23 from the upper exhaust port 33, and exchanges heat with the lower exhaust duct 24 through the outer barrel 22 during its upward flow in the upper exhaust duct 23, maintaining a certain temperature. It then enters the upper sealed box 11 from the upper air inlet 12, diffuses laterally in the upper sealed box 11, and uniformly heats the upper sealed box 11 and the panel 1, and is then discharged from the exhaust port 13. In this way, the heat energy generated by combustion, carried by the gas, first enters the foot box 3 from top to bottom, and then flows outward and then inward in the foot box 3 to form a reciprocating flow, fully and evenly dissipating the heat. It then enters the upper sealed box 11 from bottom to top, and heat exchange is performed again during the process, fully utilizing the heat energy, uniformly heating the upper, middle, and lower height ranges of the furnace body, so that the entire furnace body dissipates heat evenly, improving the thermal efficiency of the fuel and the utilization rate of thermal energy, and having a heating effect significantly superior to that of existing products.

[0030] When used for cooking, the burner 4 is connected to the upper part of the inner barrel 21, the cover ring 14 at the burner mouth is removed, and the pot is placed on the panel 1 at the burner mouth. The flame burning from the burner 4 heats the pot for cooking. When used for heating, the burner 4 is connected to the lower part of the inner barrel 21 and the cover ring 14 is closed. The hot air generated by the burner 4 first rises and then enters the lower exhaust duct 24. The hot air stays in the furnace body for a longer time, the furnace body is heated more evenly, and the heat energy utilization rate is higher.

[0031] Example 2: This embodiment differs from Example 1 only in that it has only one exhaust vent, which is connected to the top of the panel and is connected to a smoke duct. This embodiment is suitable for situations where the exhaust gas from the combustion of the fuel contains harmful components or where indoor air circulation is poor, and the exhaust gas can be discharged outdoors through the smoke duct. This situation can also be adapted to situations where coal or wood is burned on the burner.

[0032] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A heating furnace with uniform heat dissipation, characterized by: The furnace barrel comprises a panel, a furnace barrel, a foot box and a furnace head. The furnace barrel comprises an inner barrel and an outer barrel which are arranged in a sleeve. The outer barrel is connected between the foot box and the panel. The bottom end of the inner barrel is connected to the foot box. A lower exhaust duct is formed between the inner and outer barrels. The top end of the lower exhaust duct is connected to the inner space of the inner barrel. The foot box is provided with an air inlet connected to the inner space of the inner barrel. A plurality of vertical upper exhaust ducts are uniformly distributed on the outer wall of the outer barrel. An upper sealed box connected to the upper exhaust duct is provided at the bottom of the panel. The upper sealed box is provided with an exhaust port. The foot box comprises a lower sealed box. A plurality of lower exhaust ports and a plurality of upper exhaust ports are distributed in a ring shape on the lower sealed box. The lower exhaust ports are connected to the lower exhaust duct, and the upper exhaust ports are connected to the upper exhaust duct. The lower exhaust ports and the upper exhaust ports are alternately distributed in a ring shape. There are multiple groups of ribs distributed in a ring shape in the lower sealed box. The upper and lower ends of the ribs are sealed and fixed to the inner wall of the lower sealed box. The inside of each group of ribs is the lower horizontal air inlet channel, and the lower horizontal air outlet channel is between two adjacent groups of ribs. The lower air outlet is connected to the lower horizontal air inlet channel, and the upper air outlet is connected to the lower horizontal air outlet channel.

2. A heating furnace with uniform heat dissipation according to claim 1, characterized in that: A furnace opening is provided in the middle of the panel and is located above the furnace head. A cover ring is detachably connected to the furnace opening.

3. A heating furnace with uniform heat dissipation according to claim 2, characterized in that: Connecting plates are provided on the interior of the upper section and the interior of the lower section of the inner barrel, and the burner head can be detachably connected to the upper connecting plate or the lower connecting plate.

4. The heating furnace with uniform heat dissipation according to claim 1, characterized in that: The edge of the panel is provided with an upper rib located outside the upper sealed box. The air outlet is opened on the side wall of the upper sealed box facing the upper rib. There are multiple air outlets distributed along the circumference of the upper sealed box.

5. The heating furnace with uniform heat dissipation according to claim 1, characterized in that: The foot box also includes an outer barrel plate surrounding the outer side of the lower sealed box, and the air inlet is opened on the outer barrel plate. The lower sealed box is annular, and the air inlet is connected to the inner barrel through the middle of the lower sealed box.

6. The heating furnace with uniform heat dissipation according to claim 5, characterized in that: The air inlet is located at the upper part of the outer barrel plate, and the edge of the foot box is provided with a lower rib located outside the air inlet.

7. The heating furnace with uniform heat dissipation according to claim 1, characterized in that: The burner is connected to a fuel pipe.

8. The heating furnace with uniform heat dissipation according to claim 1, characterized in that: There is only one exhaust port, which is connected to the top of the panel and is connected to a smoke pipe.

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