Efficient, energy-saving and environment-friendly multi-layer hot blast stove

Abstract

The utility model discloses an efficient energy-saving environment-friendly multi-layer hot blast stove which comprises a stove body, a hearth is arranged on the lower portion in the stove body, a fire grate is arranged in the hearth, a stove door is arranged on the wall of the hearth, the top of the hearth is communicated with a cylindrical upper combustion chamber, the top of the upper combustion chamber is provided with an upper hot air chamber and an upper fire chamber which are separated by a partition plate, and a smoke outlet is communicated with the upper fire chamber. And a plurality of layers of cylindrical heat conducting plates are nested outside the cylinder of the upper combustion chamber, and a hot air duct V, a flame path I, a hot air duct IV, a flame path II, a hot air duct III, a flame path III, a hot air duct II, a flame path IV and a hot air duct I are sequentially formed from inside to outside. According to the utility model, multi-layer operation is adopted, and flue gas and air run in different channels and run oppositely, so that the running distance of the flue gas and the air is increased, the heat exchange time is correspondingly increased, the heat efficiency is improved, the energy consumption is reduced, the dust emission is reduced, and the purposes of high efficiency, energy conservation and environmental protection are achieved.

Description

TECHNICAL FIELD

[0001] The present application is used for boiler, and particularly relates to a high-efficiency energy-saving and environment-friendly multi-layer hot blast stove. BACKGROUND

[0002] The hot blast stove is a thermal power machine, and is widely used in the vast rural and urban areas in China, and has become a replacement product of the electric heat source and the traditional steam power heat source in many industries. At present, the energy saving of the common hot blast stove is not good, in order to solve the problem, the high-efficiency energy-saving and environment-friendly multi-layer hot blast stove is invented. SUMMARY

[0003] In view of the defects of the prior art, the purpose of the present application is to provide a high-efficiency energy-saving and environment-friendly multi-layer hot blast stove.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A high-efficiency energy-saving and environment-friendly multi-layer hot blast stove, which comprises a stove body, a hearth is arranged in the lower part of the stove body, a grate is arranged in the hearth, a stove door is arranged on the hearth wall, the top of the hearth is communicated with a cylindrical upper combustion chamber, the top of the upper combustion chamber is divided into an upper hot blast chamber and an upper fire chamber by a partition plate, and an exhaust port is communicated with the upper fire chamber;

[0006] A plurality of cylindrical heat-conducting plates are nested outside the column of the upper combustion chamber, and hot blast channels V, fire channels I, hot blast channels IV, fire channels II, hot blast channels III, fire channels III, hot blast channels II, fire channels IV and hot blast channels I are sequentially formed from inside to outside, the upper part of the fire channel I is communicated with the upper combustion chamber through a fire channel connecting pipe I, the lower part of the hot blast channel IV is communicated with the lower part of the hot blast channel III through a hot blast connecting pipe II, the upper part of the fire channel II is communicated with the upper part of the fire channel III through a fire channel connecting pipe II, the lower part of the hot blast channel II is communicated with the lower part of the hot blast channel I through a hot blast connecting pipe I, and the upper ends of the fire channel I, the fire channel II and the fire channel III are closed, and the lower ends of the hot blast channel IV, the hot blast channel III, the hot blast channel II and the hot blast channel I are closed;

[0007] The hearth is provided with a fire channel chamber II, a fire channel chamber I and a hot blast chamber divided by the heat-conducting plates above the hearth, the lower end of the fire channel I is communicated with the fire channel chamber I, the lower end of the fire channel II is communicated with the fire channel chamber I, the lower end of the fire channel III is communicated with the fire channel chamber II, the lower end of the fire channel IV is communicated with the fire channel chamber II, and the upper end of the fire channel IV is communicated with the upper fire chamber;

[0008] An outer air ring is arranged at the lower part of the stove body, an air inlet is arranged on the outer air ring, a ventilation pipe is communicated with the outer air ring at the lower end, and the ventilation pipe is communicated with the upper end of the hot blast channel I, the upper end of the hot blast channel II, the upper end of the hot blast channel III, the upper end of the hot blast channel IV, the upper end of the upper hot blast chamber, the upper end of the upper hot blast chamber and the hot blast chamber at the lower end, and the hot blast chamber is provided with a hot blast outlet.

[0009] The hearth wall is provided with a slag removal door.

[0010] The hot air connecting pipe I has four, which are symmetrically distributed around the axis of the above combustion chamber; the hot air connecting pipe II has four, which are symmetrically distributed around the axis of the above combustion chamber; the flue connecting pipe I has four, which are symmetrically distributed around the axis of the above combustion chamber; the flue connecting pipe II has four, which are symmetrically distributed around the axis of the above combustion chamber.

[0011] The multi-layer operation is adopted, the flue gas and air run in different ways and run towards each other, the running distance of the flue gas and air is increased, the heat exchange time is correspondingly increased, the heat efficiency is improved, the energy consumption is reduced, the dust emission is reduced, and the high-efficiency energy-saving and environment-friendly purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of the utility model.

[0013] Figure 2 It is a structure schematic diagram of the utility model.

[0014] Figure 3 It is a plane schematic diagram of the utility model.

[0015] The figure mark: 1, the smoke outlet, 2 upper fire room, 3 upper hot air chamber, 4 hot air flue I, 5 flue IV, 6 hot air flue II, 7 flue II, 8 hot air connecting pipe I, 9 flue chamber II, 10 flue chamber I, 11 ventilation pipe, 12 hot air chamber, 13 furnace hall, 14 air inlet, 15 outer air ring, 16 miscellaneous door, 17, 18 flue connecting pipe I, 19 flue connecting pipe II, 20 upper combustion chamber, 21 flue I, 22 hot air flue V, 23 hot air connecting pipe II, 24 hot air flue III, 25 hot air flue IV, 26 furnace door, 27 hot air outlet, 28 grate. DETAILED DESCRIPTION

[0016] As Figure 1 , Figure 2 , Figure 3 As shown in a kind of high-efficiency energy-saving and environment-friendly multi-layer hot blast stove, including furnace body, furnace body inside lower part has hearth 13, hearth 13 has grate 28, hearth 13 wall has furnace door 26, hearth 13 top and cylindrical upper combustion chamber 20 are communicated, upper combustion chamber 20 top has by partitioning board separates out upper hot air chamber 3 and upper fire room 2, smoke outlet 1 with upper fire room 2 is communicated;Hearth 13 wall has miscellaneous door 16.

[0017] Multiple cylindrical heat-conducting plates are nested outside the cylinder of the upper combustion chamber 20, forming hot air duct V22, fire duct I21, hot air duct IV25, fire duct II17, hot air duct III24, fire duct III7, hot air duct II6, fire duct IV5, and hot air duct I4 from the inside out. The upper part of fire duct I21 is connected to the upper combustion chamber 20 through fire duct connecting pipe I18. The lower part of hot air duct IV25 is connected to the lower part of hot air duct III24 through hot air connecting pipe II23. The upper part of fire duct II17 is connected to the upper part of fire duct III7 through fire duct connecting pipe II19. The lower part of hot air duct II6 is connected to the lower part of hot air duct I4 through hot air connecting pipe I8. The upper ends of fire duct I21, fire duct II17, and fire duct III7 are closed, and the lower ends of hot air duct IV25, hot air duct III24, hot air duct II6, and hot air duct I4 are closed.

[0018] Above the furnace 13 are fire chambers II 9, I 10 and hot air chamber 12 separated by heat-conducting plates. The lower end of fire chamber I 21 is connected to fire chamber I 10, the lower end of fire chamber II 17 is connected to fire chamber I 10, the lower end of fire chamber III 7 is connected to fire chamber II 9, the lower end of fire chamber IV 5 is connected to fire chamber II 9, and the upper end of fire chamber IV 5 is connected to the upper fire chamber 2.

[0019] There is an outer air ring 15 at the bottom of the furnace body. The outer air ring 15 has an air inlet 14 and a ventilation pipe 11. The lower end of the ventilation pipe 11 is connected to the outer air ring 15. The upper end of the ventilation pipe 11 is connected to the upper end of the hot air duct I 4. The upper end of the hot air duct II 6 is connected to the upper end of the hot air duct III 24. The upper end of the hot air duct IV 25 is connected to the upper hot air chamber 3. The upper end of the hot air duct V 22 is connected to the upper hot air chamber 3. The lower end of the hot air duct V 22 is connected to the hot air chamber 12. The hot air chamber 12 has a hot air outlet 27.

[0020] like Figure 3 As shown, there are four hot air connection pipes I 8, which are symmetrically distributed with the axis of the combustion chamber 20 as the center; there are four hot air connection pipes II 23, which are symmetrically distributed with the axis of the combustion chamber 20 as the center; there are four fire duct connection pipes I 18, which are symmetrically distributed with the axis of the combustion chamber 20 as the center; there are four fire duct connection pipes II 19, which are symmetrically distributed with the axis of the combustion chamber 20 as the center.

[0021] The working principle of this utility model is as follows: Fuel enters the furnace chamber 13 through the furnace door 26. The generated high-temperature flue gas rises to the upper combustion chamber 20, enters the flue chamber 10 through the flue connecting pipe I 18 and the flue I 21, then enters the flue III 17, then enters the flue II 7 through the flue connecting pipe II 19, then enters the flue chamber II 9, then enters the upper combustion chamber 2 through the flue IV 5, and finally exits from the flue outlet 1. At the same time, cold air enters the outer wind ring 15 through the air inlet 14, rises through the ventilation pipe 11 into the hot air duct I 4, enters the hot air duct II 6 through the hot air connecting pipe I 8, then enters the hot air duct III 24, enters the hot air duct IV 25 through the hot air connecting pipe II 23, then enters the upper hot air chamber 3, then enters the hot air chamber 12 through the hot air duct V 22, and finally exits from the hot air outlet 27.

[0022] During the whole working process, the high-temperature flue gas and the cold air move towards each other in the respective channels, and the heat exchange is carried out through the multi-layer heat-conducting plates, the temperature of the flue gas is continuously reduced, and the flue gas is discharged from the flue gas outlet 1 at a suitable temperature, and the temperature of the cold air is continuously increased, and finally becomes hot air for production and life. Due to the adoption of multi-layer operation, the running distance of the flue gas and the air is increased, the heat exchange time is correspondingly increased, the thermal efficiency is improved, the energy consumption is reduced, and the dust emission is reduced.

Claims

1. A high-efficiency, energy-saving, and environmentally friendly multi-layer hot blast stove, comprising a stove body, characterized in that: The furnace body has a furnace chamber (13) in the lower part, a grate (28) in the furnace chamber (13), a furnace door (26) on the wall of the furnace chamber (13), the top of the furnace chamber (13) is connected to the cylindrical upper combustion chamber (20), the top of the upper combustion chamber (20) has an upper hot air chamber (3) and an upper fire chamber (2) separated by a partition, and the flue gas outlet (1) is connected to the upper fire chamber (2); Multiple cylindrical heat-conducting plates are nested outside the cylinder of the upper combustion chamber (20), forming hot air duct V (22), fire duct I (21), hot air duct IV (25), fire duct II (17), hot air duct III (24), fire duct III (7), hot air duct II (6), fire duct IV (5), and hot air duct I (4) in sequence from the inside to the outside. The upper part of fire duct I (21) is connected to the upper combustion chamber (20) through fire duct connecting pipe I (18), and the lower part of hot air duct IV (25) is connected to hot air duct III (24). 4) The lower part is connected by hot air connecting pipe II (23), the upper part of fire channel II (17) is connected to the upper part of fire channel III (7) by fire channel connecting pipe II (19), the lower part of hot air channel II (6) is connected to the lower part of hot air channel I (4) by hot air connecting pipe I (8), the upper ends of fire channel I (21), fire channel II (17) and fire channel III (7) are closed, and the lower ends of hot air channel IV (25), hot air channel III (24), hot air channel II (6) and hot air channel I (4) are closed; Above the furnace (13) are fire chamber II (9), fire chamber I (10) and hot air chamber (12) separated by heat-conducting plates. The lower end of fire chamber I (21) is connected to fire chamber I (10), the lower end of fire chamber II (17) is connected to fire chamber I (10), the lower end of fire chamber III (7) is connected to fire chamber II (9), the lower end of fire chamber IV (5) is connected to fire chamber II (9), and the upper end of fire chamber IV (5) is connected to the upper fire chamber (2). There is an outer air ring (15) at the bottom of the furnace body. The outer air ring (15) has an air inlet (14) and a ventilation pipe (11) at the bottom that is connected to the outer air ring (15). The upper end of the ventilation pipe (11) is connected to the upper end of the hot air duct I (4). The upper end of the hot air duct II (6) is connected to the upper end of the hot air duct III (24). The upper end of the hot air duct IV (25) is connected to the upper hot air chamber (3). The upper end of the hot air duct V (22) is connected to the upper hot air chamber (3). The lower end of the hot air duct V (22) is connected to the hot air chamber (12). The hot air chamber (12) has a hot air outlet (27).

2. The high-efficiency, energy-saving, and environmentally friendly multi-layer hot blast furnace as described in claim 1, characterized in that: There is a waste disposal door (16) on the wall of the furnace (13).

3. The high-efficiency, energy-saving, and environmentally friendly multi-layer hot blast furnace as described in claim 1, characterized in that: There are four hot air connecting pipes I (8), which are symmetrically distributed with the axis of the combustion chamber (20) as the center; there are four hot air connecting pipes II (23), which are symmetrically distributed with the axis of the combustion chamber (20) as the center; there are four fire channel connecting pipes I (18), which are symmetrically distributed with the axis of the combustion chamber (20) as the center; there are four fire channel connecting pipes II (19), which are symmetrically distributed with the axis of the combustion chamber (20) as the center.

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