Smoke independent circulation type heating furnace

Abstract

The utility model relates to the technical field of combustion equipment, and provides a flue gas independent circulation type heating furnace which comprises a furnace body, and an air inlet and a smoke outlet are formed in the side wall of the furnace body. A combustion chamber and a feeding chamber are adjacently arranged in the furnace body; a feeding hopper used for adding fuel into the combustion chamber is arranged in the feeding chamber, and an induced draft fan and an air inlet pipe are further arranged in the feeding chamber. The exhaust end of the induced draft fan is connected with the smoke outlet; the other end of the air inlet pipe is connected with the air inlet; and the induced draft fan is configured to generate negative pressure in the combustion chamber, so that external air is sucked into the combustion chamber from the air inlet pipe, and smoke generated in the combustion chamber is discharged from the smoke outlet. Therefore, circulation of air flow is achieved in a negative pressure mode, smoke is prevented from diffusing into a room and polluting indoor air, and the negative pressure negative pressure heat supply device is clean, environmentally friendly and high in heat supply efficiency. Countercurrent flow heat exchange is formed between the flue gas and gas in the air supply cavity in the exhaust process, and heat in the flue gas is fully utilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion equipment, and in particular relates to a smoke independent circulation type stove. Background Art

[0002] Combustion furnaces are commonly used in rural areas without collective heating. There are many types of combustion furnaces on the market, and the products are diverse. For example, the structures disclosed in Chinese patents CN103629699A, CN307611416S and CN101862079A.

[0003] Existing combustion furnaces usually draw air from the room into the combustion chamber and exhaust the smoke to the outside through the chimney. However, in actual use, due to the poor sealing of the air intake position, some smoke enters the room from here, polluting the indoor air. If the smoke exhaust is not smooth, more smoke will enter the room, affecting the user experience.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the utility model mainly provides a smoke independent circulation type stove to solve the technical problem that the smoke of the existing stove body diffuses into the room.

[0006] In order to solve the above problems, the utility model provides a smoke independent circulation type stove, comprising a stove body, the side wall of which is provided with an air inlet and a smoke exhaust port; the stove body is provided with a combustion chamber and a charging chamber arranged adjacent to each other;

[0007] The charging chamber is provided with a charging hopper for adding fuel to the combustion chamber, and is also provided with an induced draft fan and an air intake pipe;

[0008] The air intake end of the induced draft fan is connected to the combustion chamber, and the air exhaust end is connected to the smoke exhaust port; one end of the air intake pipe is connected to the combustion chamber, and the other end is connected to the air intake port;

[0009] The induced draft fan is configured to generate negative pressure in the combustion chamber, so that external air is sucked into the combustion chamber from the air intake pipe, and smoke generated in the combustion chamber is discharged from the smoke exhaust port.

[0010] According to the smoke independent circulation type stove of the utility model, a stove door communicating with the combustion chamber is provided on the side wall of the stove body; and the stove door is inlaid with a glass plate.

[0011] According to the smoke independent circulation type stove of the utility model, a stove table is placed above the stove body; a heat dissipation cavity is formed between the stove table and the top of the stove body.

[0012] According to the smoke independent circulation type stove of the utility model, the stove top is provided with a stove opening located above the combustion chamber, and a feeding port located above the feeding chamber; a feeding cover plate is provided at the position of the feeding port.

[0013] According to the smoke independent circulation type fire-making stove of the utility model, a fuel box is arranged in the combustion chamber; the discharge end and the air inlet pipe of the feeding hopper are both connected to the fuel box.

[0014] According to the smoke independent circulation type fire-making stove of the utility model, a material dropping auger is provided at the discharge end of the feeding hopper, the material dropping auger is connected to the feeding auger, and the feeding auger is connected to the fuel box.

[0015] According to the smoke independent circulation type stove of the utility model, a smoke exhaust duct connected to the combustion chamber is provided in the charging chamber, and the smoke exhaust duct is also connected to a smoke exhaust box located in the charging chamber; the smoke exhaust box is connected to the induced draft fan.

[0016] According to the utility model of the smoke independent circulation type stove, a combustion chamber wall and a charging chamber wall are respectively provided at positions adjacent to the combustion chamber and the charging chamber; an air supply cavity is formed between the combustion chamber wall and the charging chamber wall; the lower part of the air supply cavity is connected to the air supply fan, and the upper part has an air outlet.

[0017] According to the utility model of the smoke independent circulation type stove, a side partition is respectively arranged on both sides of the air supply cavity; the side partition is also fixedly connected to the flue partition located between the combustion chamber wall and the material chamber wall; the area enclosed by the side partition, the combustion chamber wall and the flue partition forms a straight flue; the upper end of the straight flue is connected to the combustion chamber, and the lower end is connected to the horizontal flue; the horizontal flue is also connected to the exhaust duct.

[0018] According to the smoke independent circulation type stove of the utility model, the blower is a cross-flow blower.

[0019] In summary, the utility model generates negative pressure in a closed combustion chamber through the suction effect of the induced draft fan; under the effect of the negative pressure, the outside air is sucked into the combustion chamber from the air intake pipe. The smoke generated in the combustion chamber is extracted by the induced draft fan and discharged to the outside through the smoke exhaust port. At the same time, the negative pressure circulation of the airflow can make the fuel burn fully. The combustion chamber of the utility model is closed, and the airflow circulation is achieved by negative pressure, which prevents the smoke from diffusing into the room and polluting the indoor air. It is clean and environmentally friendly, and has high heating efficiency. The furnace body of the utility model also has an air supply chamber. During the process of exhausting the smoke, countercurrent heat exchange is formed with the gas in the air supply chamber, so that the heat in the smoke is fully utilized. The flue structure is separated from the air supply chamber, which realizes heat exchange and prevents the smoke from diffusing into the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 yes Figure 1 A is a schematic cross-sectional view of an embodiment;

[0023] Figure 4 yes Figure 1 A is a schematic cross-sectional view of an embodiment;

[0024] Figure 5 It is a schematic diagram of the flue structure of the utility model;

[0025] In the figure: 1-furnace body, 11-air inlet, 12-smoke exhaust port, 13-furnace door, 131-glass plate; 14-fuel box, 15-ash hopper, 16-air inlet pipe, 17-combustion chamber wall, 18-material chamber wall; 2-induced draft fan, 21-smoke exhaust duct, 22-smoke exhaust box, 23-horizontal flue, 24-vertical flue, 25-exhaust port, 26-flue partition, 27-fan plate; 3-furnace table, 31-charging port, 32-charging cover, 33-cooking port; 4-air supply fan, 41-air supply cavity, 42-air outlet, 43-side partition; 5-charging hopper, 51-charging auger, 52-feeding auger; 100-combustion chamber, 200-charging chamber. DETAILED DESCRIPTION

[0026] See also Figure 1 The utility model provides a smoke independent circulation type stove, comprising a stove body 1, wherein the side wall of the stove body 1 is provided with an air inlet 11 and a smoke exhaust port 12; Figure 3 The furnace body 1 has a combustion chamber 100 and a charging chamber 200 arranged adjacent to each other;

[0027] Recombination Figure 2 The charging chamber 200 is provided with a charging hopper 5 for adding fuel to the combustion chamber 100, and is also provided with an induced draft fan 2 and an air intake pipe 16;

[0028] The air intake end of the induced draft fan 2 is connected to the combustion chamber 100, and the air exhaust end is connected to the smoke exhaust port 12; one end of the air intake pipe 16 is connected to the combustion chamber 100, and the other end is connected to the air intake port 11;

[0029] The suction action of the induced draft fan 2 generates negative pressure in the closed combustion chamber 100, and the negative pressure causes external air to be sucked into the combustion chamber 100 from the air intake pipe 16. The smoke generated in the combustion chamber 100 is drawn out by the induced draft fan 2 and discharged to the outside through the smoke exhaust port 12.

[0030] Optionally, the smoke exhaust port 12 of the utility model can be connected to a chimney to exhaust smoke to the outside; the air inlet 11 can also be connected to a pipeline leading to the outside, so that gas is directly sucked from the outside and sent into the combustion chamber 100.

[0031] The combustion chamber 100 of the utility model realizes airflow circulation by negative pressure, preventing smoke from diffusing into the room and polluting the indoor air. The combustion chamber 100 is closed, and the generated heat can be radiated into the room through the side wall of the combustion chamber 100, raising the indoor temperature and playing a heating role.

[0032] The negative pressure generated by the induced draft fan 2 continuously draws external fresh air into the combustion chamber 100, so that the fuel can be fully burned and the overall thermal efficiency can be improved.

[0033] As a preferred solution, a furnace door 13 connected to the combustion chamber 100 is provided on the side wall of the furnace body 1; the furnace door 13 can be opened to clean the fuel ash; further, a glass plate 131 is inlaid on the furnace door 13; the heat permeability is good, and the efficiency of the combustion chamber 100 radiating heat to the room is improved. At the same time, the combustion status of the fuel can be observed through the glass plate 131.

[0034] The number of the furnace doors 13 of the present invention can be adaptively set to one or more according to the actual volume or shape of the furnace body 1 .

[0035] If the furnace body 1 is in the shape of a rectangular parallelepiped, the number of furnace doors 13 can be set to three, and one furnace door 13 can be respectively set on each side wall of the combustion chamber 100 that contacts the outside to improve heat dissipation.

[0036] If the furnace body 1 is cylindrical in shape, a plurality of furnace doors 13 may be evenly arranged around the cylindrical surface of the combustion chamber 100 , and the number of the furnace doors 13 may be adaptively set according to the diameter of the furnace body 1 .

[0037] As an embodiment, a furnace table 3 is placed above the furnace body 1; a heat dissipation cavity is provided between the furnace table 3 and the top of the furnace body 1; and the heat generated by the combustion chamber 100 can be diffused into the room through the heat dissipation cavity.

[0038] Optionally, the utility model provides a plurality of support columns between the top of the furnace body 1 and the furnace platform 3 to prop up the furnace platform 3 and form a heat dissipation cavity.

[0039] Furthermore, the stovetop 3 is provided with a stove opening 33 located above the combustion chamber 100; the stove opening 33 can be used to place pots, kettles and other items, which can be placed on the top of the combustion chamber 100 by sinking the stove opening 33. The heat generated in the combustion chamber 100 heats the top, and then heats the pots, kettles and the like by heat conduction. Users can cook and boil water, which increases the function of the stove and improves the user experience.

[0040] Optionally, a stove cover can be provided at the stove mouth 33, on which cooked food, wet clothes, etc. can be placed to increase the functionality.

[0041] Preferably, the furnace table 3 is provided with a charging port 31 located above the charging chamber 200; fuel can be placed in the charging hopper 5 through the charging port 31. Furthermore, a charging cover plate 32 is provided at the position of the charging port 31; after the fuel is placed, the charging port 31 can be closed with the charging cover plate 32 to prevent dust generated by the fuel fragments from drifting into the room.

[0042] See also Figure 4 As an embodiment, a fuel box 14 is provided in the combustion chamber 100; the discharge end of the hopper 5 and the air inlet pipe 16 are both connected to the fuel box 14; the fuel is concentratedly burned in the fuel box 14, and the external air is directly introduced into the fuel box 14 to improve the combustion efficiency.

[0043] Preferably, the combustion chamber 100 is further provided with an ash receiving hopper 15 located below the fuel box 14, and the fuel ash can be collected in the ash receiving hopper 15 for unified treatment. Optionally, a pull-out plate is provided at the bottom of the fuel box 14 to facilitate the fuel ash to fall into the ash receiving hopper 15.

[0044] As an embodiment, a blanking auger 52 is provided at the discharge end of the feeding hopper 5, the blanking auger 52 is connected to the feeding auger 51, and the feeding auger 51 is connected to the fuel box 14; fuel is added to the fuel box 14 through the blanking auger 52 and the feeding auger 51, so as to control the amount of fuel added. At the same time, the sealing performance is good to prevent smoke from floating out of the feeding hopper 5.

[0045] Combination Figure 5 As an embodiment, a smoke exhaust duct 21 connected to the combustion chamber 100 is provided in the charging chamber 200, and the smoke exhaust duct 21 is also connected to a smoke exhaust box 22 located in the charging chamber 200; the smoke exhaust box 22 is connected to the induced draft fan 2;

[0046] Optionally, a fan plate 27 for mounting the induced draft fan 2 is provided on the side of the smoke exhaust box 22;

[0047] When the flue gas is drawn away and discharged by the induced draft fan 2, it flows through the flue gas duct 21 and the flue gas box 22, diffuses the heat into the charging chamber 200, increases the temperature of the charging chamber 200, and finally dissipates the heat into the room, thereby improving the utilization rate of the flue gas heat.

[0048] Preferably, the smoke exhaust duct 21 is laid at the bottom of the charging chamber 200, and the heat dissipation of the smoke is increased by using the principle of rising hot air.

[0049] Combination Figure 4As an embodiment, the combustion chamber 100 and the charging chamber 200 are respectively provided with a combustion chamber wall 17 and a charging chamber wall 18 at positions adjacent to each other; an air supply cavity 41 is formed between the combustion chamber wall 17 and the charging chamber wall 18; the lower part of the air supply cavity 41 is connected to the air blower 4, and the upper part thereof is provided with an air outlet 42;

[0050] The air supply cavity 41 is adjacent to the combustion chamber 100, and hot air is generated in the cavity. The hot air in the air supply cavity 41 is sent into the room from the air outlet 42 by the air supply fan 4, generating a heat convection effect in the room, thereby improving the heating effect.

[0051] Optionally, the air outlet 42 is opened in the heat dissipation cavity between the furnace table 3 and the furnace body 1; heat is dissipated into the room through the heat dissipation cavity with good uniformity.

[0052] Preferably, the air blower 4 of the present invention is a cross-flow blower, which has a large axial length and good air supply uniformity.

[0053] As an embodiment, a side partition 43 is respectively provided on both sides of the air supply cavity 41; the side partition 43 is also fixedly connected to the flue partition 26 located between the combustion chamber wall 17 and the material chamber wall 18; the area enclosed by the side partition 43, the combustion chamber wall 17 and the flue partition 26 forms a straight flue 24; the upper end of the straight flue 24 is connected to the combustion chamber 100, and the lower end is connected to the horizontal flue 23; the horizontal flue 23 is also connected to the exhaust duct 21;

[0054] The smoke is generated in the combustion chamber 100, and forms a countercurrent heat exchange with the gas in the air supply chamber 41 during the process of flowing through the straight flue 24 and the horizontal flue 23, so that the heat in the smoke is fully utilized. The flue structure is separated from the air supply chamber 41, which realizes heat exchange and prevents the smoke from spreading into the room.

[0055] Optionally, an exhaust port 25 connected to the straight flue 24 is opened on the upper part of the combustion chamber wall 17. After the smoke is generated, it rises and is extracted from the exhaust port 25, which reduces the residence time in the combustion chamber 100 and reduces the risk of spreading from the gap of the furnace door 13 into the room.

[0056] In summary, the utility model provides a smoke independent circulation type stove, which generates negative pressure in the closed combustion chamber through the suction effect of the induced draft fan; under the effect of the negative pressure, the outside air is sucked into the combustion chamber from the air inlet pipe. The smoke generated in the combustion chamber is extracted by the induced draft fan and discharged to the outside from the smoke exhaust port. At the same time, the negative pressure circulation of the airflow can make the fuel burn fully. The combustion chamber of the utility model is closed, and the airflow circulation is realized by negative pressure, which prevents the smoke from diffusing into the room and polluting the indoor air. It is clean and environmentally friendly, and has high heating efficiency. The furnace body of the utility model also has an air supply chamber. During the process of smoke being extracted, countercurrent heat exchange is formed with the gas in the air supply chamber, so that the heat in the smoke is fully utilized. The flue structure is separated from the air supply chamber, which realizes heat exchange and prevents smoke from diffusing into the room.

[0057] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A smoke independent circulation type stove, characterized in that: It comprises a furnace body, the side wall of which is provided with an air inlet and a smoke exhaust port; the furnace body is provided with a combustion chamber and a charging chamber which are adjacently arranged; The charging chamber is provided with a charging hopper for adding fuel to the combustion chamber, and is also provided with an induced draft fan and an air intake pipe; The air intake end of the induced draft fan is connected to the combustion chamber, and the air exhaust end is connected to the smoke exhaust port; one end of the air intake pipe is connected to the combustion chamber, and the other end is connected to the air intake port; The induced draft fan is configured to generate negative pressure in the combustion chamber, so that external air is sucked into the combustion chamber from the air intake pipe, and smoke generated in the combustion chamber is discharged from the smoke exhaust port.

2. The smoke independent circulation type stove as claimed in claim 1, characterized in that: A furnace door connected to the combustion chamber is provided on the side wall of the furnace body; the furnace door is inlaid with a glass plate.

3. The smoke independent circulation type stove as claimed in claim 1, characterized in that: A furnace table is also placed above the furnace body; a heat dissipation cavity is formed between the furnace table and the top of the furnace body.

4. The smoke independent circulation type stove as claimed in claim 3, characterized in that: The stove top is provided with a stove opening located above the combustion chamber, and is also provided with a charging port located above the charging chamber; a charging cover plate is provided at the position of the charging port.

5. The smoke independent circulation type stove as claimed in claim 1, characterized in that: A fuel box is arranged in the combustion chamber; the discharge end and the air inlet pipe of the hopper are both connected to the fuel box.

6. The smoke independent circulation type stove as claimed in claim 5, characterized in that: A material-dropping auger is provided at the discharge end of the feeding hopper, the material-dropping auger is connected to the feeding auger, and the feeding auger is connected to the fuel box.

7. The smoke independent circulation type stove according to any one of claims 1 to 6, characterized in that: The charging chamber is provided with a smoke exhaust duct connected to the combustion chamber, and the smoke exhaust duct is also connected to a smoke exhaust box located in the charging chamber; the smoke exhaust box is connected to the induced draft fan.

8. The smoke independent circulation type stove as claimed in claim 7, characterized in that: A combustion chamber wall and a charging chamber wall are respectively arranged at positions adjacent to the combustion chamber and the charging chamber; an air supply cavity is formed between the combustion chamber wall and the charging chamber wall; the lower part of the air supply cavity is connected to the air supply fan, and the upper part is provided with an air outlet.

9. The smoke independent circulation type stove as claimed in claim 8, characterized in that: A side vertical partition is respectively provided on both sides of the air supply cavity; The side partition is also fixedly connected to the flue partition located between the combustion chamber wall and the material chamber wall; the area enclosed by the side partition, the combustion chamber wall and the flue partition forms a straight flue; the upper end of the straight flue is connected to the combustion chamber, and the lower end is connected to the horizontal flue; the horizontal flue is also connected to the exhaust duct.

10. The smoke independent circulation type stove as claimed in claim 8, characterized in that: The blower is a cross-flow blower.

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