CN210373543U

CN210373543U - Multifunctional high-efficiency heating stove

Info

Publication number: CN210373543U
Application number: CN201920941638.3U
Authority: CN
Inventors: 史则阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-04-21
Anticipated expiration: 2029-06-21

Abstract

The utility model relates to a multi-functional high-efficient heating stove, it includes fixed connection's furnace body and preheating cabinet, furnace's furnace wall outside ring is equipped with the furnace water jacket, be equipped with the furnace flue between the furnace body wall of furnace and furnace body, be provided with in the preheating cabinet and preheat the flue, preheat the air flue and preheat the water jacket and all laminate each other and do not communicate, preheat flue one end and furnace flue and be linked together, the other end and outlet flue intercommunication, it is linked together with the furnace water jacket to preheat water jacket one end, the other end is linked together with the water inlet, preheat air flue one end and air inlet, the other end lets in furnace, it is equipped with the outlet flue. Through setting up the preheating cabinet for the air is fully through preheating before getting into furnace, and the temperature improves, can improve the furnace internal temperature like this, thereby promotes the abundant burning of the internal fuel of furnace, makes the flue gas temperature improve, thereby improves water jacket hot water temperature, promotes the heating effect.

Description

Multifunctional high-efficiency heating stove

Technical Field

The utility model relates to a heating installation field, in particular to multi-functional high-efficient heating stove.

Background

At present, the multi-functional heating stove of living beings such as coal-fired or burning straw on the market, mainly adopt the nature to admit air, partly usable air-blower blasts, but no matter admit air naturally or the air-blower blast, the outside air is not preheated and directly enters into furnace, such air temperature is lower, temperature is also lower in the furnace, like this when outside temperature is lower, because temperature is lower in the furnace, the fuel burning in the furnace is not enough, the obtained flue gas temperature is high inadequately, make the temperature of hot water in the water jacket lower, lead to the heating effect relatively poor. And when the combustion is insufficient, the smoke content in the smoke is too high, the smoke channel is easy to block, and the environment is also easy to pollute.

When the heating furnace normally works, the smoke of some multifunctional heating furnaces on the market still has partial waste heat and power which cannot be fully utilized after passing through the water jacket, and the energy is dissipated and wasted, and meanwhile, the temperature of the smoke discharged from the chimney is too high, and the smoke is easy to damage the environment.

In addition, the hearth of the existing multifunctional heating stove on the market is mostly cylindrical, the upper inner diameter and the lower inner diameter are the same, so that when the upper opening of the hearth is opened, flame is not easy to gather up when cooking or cooking, the temperature of the pot body is not high enough, and the time needed for cooking is prolonged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem not enough, provide a simple structure, economical and practical, existing high combustion efficiency also can effectively utilize the flue gas waste heat, can also guarantee to provide the multi-functional high-efficient heating stove of higher temperature when cooking.

In order to solve the problems, the utility model provides a multifunctional high-efficiency heating stove, which comprises a stove body and a preheating box, wherein the stove body is fixedly connected with the preheating box, a hearth is fixedly arranged inside the stove body, a hearth water jacket is annularly arranged outside the hearth wall of the hearth, a hearth flue is arranged between the hearth and the stove body wall of the stove body, a water outlet is arranged on the stove body wall, the hearth water jacket is communicated with the water outlet, a top opening is arranged on the top surface of the stove body, a preheating flue, a preheating air flue and a preheating water jacket are arranged in the preheating box, the preheating flue, the preheating air flue and the preheating water jacket are mutually attached and not communicated, a smoke outlet, an air inlet and a water inlet are arranged on the preheating box wall of the preheating box, one end of the preheating flue is communicated with the hearth flue, the other end of the preheating water jacket is, preheating air flue one end and air inlet, the other end lets in the furnace, preheat the roof portion and be equipped with the outlet flue.

Furthermore, a smoke exhaust fan is arranged in the preheating flue, an air inlet fan is arranged in the preheating air flue, and the smoke exhaust fan and the air inlet fan are mutually driven through a driving mechanism.

Furthermore, the device also comprises a motor, wherein the power output end of the motor respectively drives the smoke exhaust fan and the air inlet fan to rotate, and the motor is electrically connected with a power supply.

Furthermore, the smoke exhaust fan is arranged in the preheating flue through a smoke exhaust fan rotating shaft, the rotating plane of the smoke exhaust fan is perpendicular to the arrangement direction of the preheating flue, the smoke exhaust fan rotating shaft penetrates through the wall of the preheating tank, and a flue belt pulley is arranged outside the wall of the preheating tank.

Furthermore, the air inlet fan is arranged in the preheating air channel through an air inlet fan rotating shaft, the rotating plane of the air inlet fan is perpendicular to the arrangement direction of the preheating air channel, the air inlet fan rotating shaft penetrates through the wall of the preheating box, and an air channel belt pulley is arranged outside the wall of the preheating box.

Further, the smoke exhaust fan and the air intake fan are driven by a belt.

Further, the motor comprises a motor belt pulley, and the power output end of the motor is in transmission with the belt through the motor belt pulley.

Furthermore, the horizontal heights of the communication position of the preheating water jacket and the hearth water jacket and the communication position of the preheating flue and the hearth flue are lower than the height of the upper opening of the hearth.

Furthermore, the hearth is in a round table shape, and the diameter of the bottom surface is larger than that of the top surface.

Furthermore, a safety cover is fixedly connected outside the preheating box, the safety cover is wrapped and arranged on the outer sides of the top surface and the side surface of the flue belt pulley and the flue belt pulley, and the bottom surface of the safety cover is an opening.

The utility model provides a multi-functional high-efficient heating stove is through setting up the preheating cabinet for the air is fully through preheating before getting into furnace, and the temperature improves, can improve furnace internal temperature like this, thereby promotes the abundant burning of the internal fuel of furnace, makes the flue gas temperature improve, thereby improves water jacket internal hot water temperature, promotes the heating effect, and the flue gas also can preheat water jacket internal hot water in addition, for only at furnace internal heating water jacket, also can improve water jacket internal hot water temperature, promotes the heating effect.

The utility model discloses the interconversion's that adds inlet fan and smoke exhausting fan, can further utilize preheating and the power of flue gas, when no external blast, drive inlet fan through smoke exhausting fan, increase the admission speed, thereby make the combustion of furnace interior fuel obtain more sufficient oxygen, make the combustion of fuel more abundant, when having external blast, drive smoke exhausting fan through inlet fan, when the admission speed increases, the smoke exhausting speed also promotes thereupon, thereby make the air that gets into in the furnace and the water jacket in the preheating cabinet obtain more abundant preheating, improve water jacket internal water temperature, promote the heating effect.

The utility model discloses the motor of addding can drive inlet fan and smoke exhausting fan to increase admission speed and exhaust velocity, can make fuel obtain more sufficient oxygen, also enable the air and the water jacket in the preheating cabinet and obtain more abundant preheating, thereby when making the abundant burning of fuel, also can improve water jacket internal hot water temperature degree, promote the heating effect.

The utility model discloses well flue that gets into the preheater again of downwardly extending after the furnace goes out, increase flue gas and water jacket area of contact to make the flue gas dwell longer time in the furnace body, with the heat energy make full use of that burns, improve heat exchange efficiency.

The utility model provides a round platform shape furnace can effectively gather together flame, improves the flame temperature, and the culinary art of being convenient for is used.

The utility model discloses cover the safety guard outside flue belt pulley and air flue belt pulley can effectively protect heating stove user's safety, can not be injured by pivoted belt pulley.

The utility model discloses a scientific and reasonable's structural configuration, it is simple to make, the processing ease, the efficiency of utilizing heat energy is higher.

Drawings

Fig. 1 is a side view of embodiment 1 of the present invention;

fig. 2 is a side sectional view of embodiment 1 of the present invention;

fig. 3 is a front view of embodiment 1 of the present invention;

fig. 4 is a front sectional view of embodiment 1 of the present invention;

fig. 5 is a top view of embodiment 1 of the present invention;

FIG. 6 is a sectional view of the furnace body taken along the line A-A according to example 1 of the present invention;

fig. 7 is a side view of embodiment 2 of the present invention;

fig. 8 is a side sectional view of embodiment 2 and embodiment 3 of the present invention;

fig. 9 is a front view of embodiment 2 of the present invention;

fig. 10 is a top view of embodiment 2 of the present invention;

fig. 11 is a side view of embodiment 3 of the present invention;

fig. 12 is a front view of embodiment 3 of the present invention.

Legend: 1. a furnace body; 11. a hearth; 111. a furnace wall; 112. a grate; 12. a hearth water jacket; 13. a furnace flue; 14. the wall of the furnace body; 141. a dust removal door; 15. a water outlet; 16. a top opening; 161. a furnace cover; 17. a feeding area; 171. a feeding gate; 18. a slag discharging area; 181. a slag outlet door; 2. a preheating box; 21. preheating a flue; 211. a smoke exhaust fan; 212. a rotating shaft of the smoke exhaust fan; 213. a flue pulley; 22. preheating an air passage; 221. an air intake fan; 222. an intake fan rotating shaft; 223. an air passage belt pulley; 23. preheating a water jacket; 24. preheating the box wall; 25. a smoke outlet; 26. an air inlet; 27. a water inlet; 28. a belt; 3. an electric motor; 31. a motor pulley; 4. a safety shield.

Detailed Description

Example 1

As shown in fig. 1-6, a multifunctional high-efficiency heating stove comprises a stove body 1 and a preheating box 2, the stove body 1 is fixedly connected with the preheating box 2, a hearth 11 is fixedly arranged inside the stove body 1, the hearth 11 is in a circular truncated cone shape, and the diameter of the bottom surface is larger than that of the top surface.

The outer side of the hearth wall 111 of the hearth 11 is annularly provided with a hearth water jacket 12, a hearth flue 13 is arranged between the hearth 11 and the furnace body wall 14 of the furnace body 1, and the hearth water jacket 12 partially wraps the hearth flue 13.

The preheating box 2 is internally provided with a preheating flue 21, a preheating flue 22 and a preheating water jacket 23, the preheating flue 21, the preheating flue 22 and the preheating water jacket 23 are mutually attached, and the preheating flue 21, the preheating flue 22 and the preheating water jacket 23 of each part are mutually parallel and are arranged in the preheating box 2 in a folding manner.

The wall 14 of the furnace body is provided with a water outlet 15, the wall 24 of the preheating tank 2 is provided with a smoke outlet 25, an air inlet 26 and a water inlet 27, the hearth water jacket 12 is communicated with the water outlet 15, one end of the preheating water jacket 23 is communicated with the hearth water jacket 12, and the other end is communicated with the water inlet 27.

The horizontal heights of the communication part of the preheating water jacket 23 and the hearth water jacket 12 and the communication part of the preheating flue 21 and the hearth flue 13 are lower than the height of the upper opening of the hearth 11.

The top of the preheating box 2 is provided with a smoke outlet 25, and the smoke outlet 25 can be connected with a chimney or other smoke exhausting equipment.

One end of the furnace body 1, which is far away from the preheating box 2, is provided with a feeding area 17, one end of the feeding area 17 is communicated with the middle part of the hearth 11, the other end of the feeding area is provided with a feeding door 171, and the feeding door 171 is rotatably connected with the furnace body wall 14.

A grate 112 is arranged in the hearth 11, the outer edge of the grate 112 is fixedly connected with the hearth wall 111 of the hearth 11, a hollow grid is arranged on the grate 112, and the arrangement height of the grate 112 is lower than that of the feeding area 17.

One end of the furnace body 1, which is far away from the preheating box 2, is provided with a slag discharging area 18, one end of the slag discharging area 18 is communicated with the bottom of the hearth 11, the other end of the slag discharging area is provided with a slag discharging door 181, and the slag discharging door 181 is rotatably connected with the furnace body wall 14.

The top surface of the furnace body 1 is provided with a top opening 16, the top opening 16 is circular, a furnace cover 161 is detachably arranged on the top opening 16, and the furnace cover 161 is in a separable annular sleeve shape.

The furnace wall 14 is provided with an ash removal door 141, and the ash removal door 141 is communicated with the communication part of the preheating flue 21 and the hearth flue 13 and is positioned at the same horizontal height.

In practical use, fuel is filled in the feeding door 171, after the fuel is ignited by a fire source, the fuel is combusted in the hearth 11, smoke gas obtained by fuel combustion is discharged from the upper opening of the hearth 11 and then is discharged to the smoke outlet 25 along the hearth flue 13 and the preheating flue 21, air required by fuel combustion enters the preheating box 2 from the air inlet 26 and is introduced into the hearth 11 along the preheating air passage 22, and the smoke gas obtained by combustion can fully preheat the air required by combustion due to the mutual attachment of the preheating flue 21 and the preheating air passage 22. And the gas of the two flows reversely, the temperature of the flue gas is continuously reduced from the hearth flue 13 to the preheating flue 21, the temperature of the air is continuously increased from the preheating air channel 22 to the hearth 11, and the preheating effect is better compared with the equidirectional arrangement. The temperature of the air preheated by the flue gas is increased, and compared with cold air, the combustion temperature in the hearth 11 can be increased, the full combustion of fuel is promoted, the utilization efficiency of the fuel is improved, and the generation of smoke dust is reduced.

The outer side of the hearth wall 111 of the hearth 11 is annularly provided with a hearth water jacket 12, the hearth water jacket 12 is communicated with a preheating water jacket 23 in the preheating box 2, a water outlet 15 arranged on the hearth wall 14 is communicated with the hearth water jacket 12, a water inlet 27 arranged on a preheating box wall 24 of the preheating box 2 is communicated with the preheating water jacket 23, and as the preheating flue 21 and the preheating water jacket 23 are mutually attached, the flue gas obtained by combustion can preheat the water in the preheating water jacket 23. And the flow directions of the two gases are opposite, the temperature of the flue gas from the hearth flue 13 to the preheating flue 21 is continuously reduced, the temperature of the water from the preheating water jacket 23 to the inner part of the hearth water jacket 12 is continuously increased, and the heating effect is better compared with the same direction arrangement. The hot water heated by the preheating water jacket 23 and the hearth water jacket 12 flows out of the water outlet 15 and enters a heating pipeline to provide heating. For the hot water of only through the heating of furnace water jacket 12, the utility model provides a hot water temperature is higher to the heating effect has been improved.

The horizontal heights of the communication part of the preheating water jacket 23 and the hearth water jacket 12 and the communication part of the preheating flue 21 and the hearth flue 13 are lower than the height of the upper opening of the hearth 11, so that when the heating stove works, flue gas flows from the top of the hearth 11 to the bottom along the hearth flue 13, enters the preheating flue 21 which is arranged in the preheating box 2 in a folding mode, is discharged from the smoke outlet 25 at the top of the preheating box 2, and is directly discharged along the smoke outlet 25 after flowing out from the top of the hearth 11, the flue gas can stay in the furnace body 1 and the preheating box 2 for a longer time, the contact area of the flue gas and the water jacket is increased, and heat energy obtained by combustion is more fully utilized.

The 11 shapes of furnace of this embodiment are round platform shape, and the bottom surface diameter is greater than the top surface diameter, and when opening 16 culinary art of fore-stock, furnace's shape can make flame concentrate on pot body bottom, and pot body temperature is higher, for common cylindricality furnace, can practice thrift the culinary art time, convenient culinary art.

When the heating temperature or the flame temperature requirement during cooking is higher, a blowing device can be arranged outside the air inlet 26, more air can enter the hearth at the moment, and compared with a non-blowing state, the combustion is more sufficient, and the flame temperature is higher.

Example 2

As shown in fig. 7-10, a multifunctional high-efficiency heating stove has the same structure as that of embodiment 1, wherein a smoke exhaust fan 211 is additionally arranged in a preheating flue 21, an air inlet fan 221 is additionally arranged in a preheating air flue 22, wherein the smoke exhausting fan 211 is disposed in the preheating flue 21 through the smoke exhausting fan rotating shaft 212, the rotation plane of the smoke exhaust fan 211 is vertical to the direction of the preheating flue 21, the rotation shaft 212 of the smoke exhaust fan penetrates through the preheating box wall 24, a flue pulley 213 is arranged outside the preheating box wall 24, an air inlet fan 221 is fixedly arranged in the preheating air duct 22, the air inlet fan 221 is arranged in the preheating air duct 22 through an air inlet fan rotating shaft 222, and the rotation plane of the intake fan 221 is perpendicular to the direction of the preheating air duct 22, the rotation shaft 222 of the intake fan penetrates the preheating cabinet wall 24, an air duct pulley 223 is arranged outside the preheating tank wall 24, and the flue pulley 213 and the air duct pulley 223 are driven by a belt 28. Wherein the number of the devices can be more than 1 group.

When the smoke exhausting direction of the preheating flue 21 where the smoke exhausting fan 211 is located is opposite to the air inlet direction in the preheating air flue 22 where the air inlet fan 221 is located, the fan blades of the smoke exhausting fan 211 and the air inlet fan 221 are arranged in the opposite direction, and the belt 38 is in 0-shaped opening transmission; the smoke exhausting direction of the preheating flue 21 where the smoke exhausting fan 211 is located is the same as the air intake direction of the preheating air flue 22 where the air intake fan 221 is located, the smoke exhausting fan 211 and the air intake fan 221 are arranged in the same direction, and the belt 28 is in 8-shaped cross transmission.

In addition, a safety cover 4 can be arranged outside the preheating box 2, the safety cover 4 is wrapped on the outer sides of the top surface and the side surface of the flue belt pulley 213 and the flue belt pulley 223, and the bottom surface of the safety cover 4 is an opening.

In practical use, after the flue gas flowing out of the hearth 11 passes through the hearth flue 13, part of residual heat and power still exist, and by arranging the smoke exhaust fan 211 and the air inlet fan 221 which can be mutually driven, the smoke can drive the smoke exhaust fan 211 to rotate, when the smoke exhaust fan 211 rotates, the smoke exhaust fan rotating shaft 212 drives the flue pulley 213 to rotate, since the flue pulley 213 and the air duct pulley 223 are driven by the belt 28, at this time, the flue pulley 213 is used as a driving wheel, the air duct pulley 223 is used as a driven wheel, the flue pulley 213 drives the air duct pulley 223 to rotate, the rotating air duct pulley 223 drives the air intake fan 221 to rotate through the air intake fan rotating shaft 222, thereby promoting the flow of air in the preheating air passage 22, accelerating the flow of air in the preheating air passage 22, therefore, more air enters the hearth 11, the combustion of the fuel in the hearth 11 is promoted, and the combustion efficiency of the fuel is improved. The directions of the blades of the smoke exhaust fan 211 and the air intake fan 221 and the rotation direction of the belt 28 are set according to the flow directions of the gases in the preheating flue 21 and the preheating air duct 22, so that the flows of the smoke and the air can be ensured to be mutually promoted without being mutually hindered.

When the requirement for the flame temperature is high during heating temperature or cooking, a blowing device can be arranged outside the air inlet 26, the preheating air channel 22 is fast in air flow, the air inlet fan 221 can be driven to rotate, the air inlet fan 221 rotates at the moment, the air channel belt pulley 223 is driven to rotate through the air inlet fan rotating shaft 222, the air channel belt pulley 213 and the air channel belt pulley 223 are driven through the belt 28, the air channel belt pulley 223 serves as a driving wheel at the moment, the air channel belt pulley 213 serves as a driven wheel, the air channel belt pulley 223 drives the air channel belt pulley 213 to rotate, the rotating air channel belt pulley 213 drives the smoke exhaust fan 211 to rotate through the smoke exhaust fan rotating shaft 212, accordingly, discharge of smoke in the preheating air channel 21 is promoted. The air flow entering the hearth 11 is accelerated, the combustion of the fuel in the hearth 11 can be promoted, the flame temperature is increased, the temperature of hot water in the water jacket or the temperature of the pot body is increased,

example 3

As shown in fig. 8 and fig. 11 to 12, a multifunctional high-efficiency heating stove is otherwise the same as that of embodiment 2, wherein a motor 3 is additionally provided, the motor 3 is provided with a motor pulley 31, the motor pulley 31 is driven by a belt 28, and the motor 3 is electrically connected to a power supply. Wherein the number of the devices can be more than 1 group. The motor can be a three-phase squirrel-cage motor, and the power supply is three-phase alternating current. The direction in which the motor pulley 31 rotates the belt 28 is the same as the direction in which the exhaust fan 211 and the intake fan 221 rotate the belt 28 when the power is not supplied.

In practical use, the motor 3 electrically connected to the power supply can drive the motor pulley 31 to rotate, and since the motor pulley 31, the flue pulley 213 and the heat exchange air duct pulley 223 are all in transmission with the belt 28, at this time, the motor pulley 31 is used as a driving wheel, the flue pulley 213 and the air duct pulley 223 are used as driven wheels, the rotating flue pulley 213 and the air duct pulley 223 drive the smoke exhaust fan 211 and the air intake fan 221 through the smoke exhaust fan rotating shaft 212 and the air intake fan rotating shaft 222, so as to promote the flow of smoke in the preheating flue 21 and air in the preheating air duct 22, and accelerate the flow of air in the preheating air duct 22, so that more air enters the hearth 11, and because more air enters the hearth, the oxygen therein can promote the combustion of fuel in the hearth 11, thereby improving the combustion efficiency of the.

The rotation direction of the motor pulley 31 is set according to the flow direction of the smoke and air, and it is ensured that the operating motor 3 can efficiently promote the flow of the smoke and air through the belt 28 without obstructing the flow of the smoke and air.

And according to the actual use condition, the rotating speed of the smoke exhaust fan 211 and the rotating speed of the air inlet fan 221 can be adjusted by adjusting the rotating speed of the motor pulley 31, so that the flowing speed of the smoke in the preheating flue 21 and the air in the preheating air flue 22 can be adjusted, and the combustion degree of the fuel in the hearth can be indirectly adjusted according to the requirement.

It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. A multifunctional high-efficiency heating stove is characterized in that: the preheating furnace comprises a furnace body (1) and a preheating tank (2), wherein the furnace body (1) is fixedly connected with the preheating tank (2), a hearth (11) is fixedly arranged inside the furnace body (1), a hearth water jacket (12) is annularly arranged on the outer side of a hearth wall (111) of the hearth (11), a hearth flue (13) is arranged between the hearth (11) and a furnace body wall (14) of the furnace body (1), a water outlet (15) is formed in the furnace body wall (14), the hearth water jacket (12) is communicated with the water outlet (15), a top opening (16) is formed in the top surface of the furnace body (1), a preheating flue (21), a preheating air flue (22) and a preheating water jacket (23) are arranged in the preheating tank (2), the preheating flue (21), the preheating air flue (22) and the preheating water jacket (23) are mutually attached and not communicated, and a smoke outlet (25) and a preheating water outlet are formed in a preheating tank wall (24), The preheating device comprises an air inlet (26) and a water inlet (27), one end of a preheating flue (21) is communicated with a hearth flue (13), the other end of the preheating flue is communicated with a smoke outlet (25), one end of a preheating water jacket (23) is communicated with a hearth water jacket (12), the other end of the preheating water jacket is communicated with the water inlet (27), one end of a preheating air channel (22) is communicated with the air inlet (26), the other end of the preheating air channel is communicated into a hearth (11), and the top of the preheating box (2) is provided with the smoke outlet (25.

2. A multifunctional high-efficiency heating stove according to claim 1, characterized in that: the preheating device is characterized in that a smoke exhaust fan (211) is arranged in the preheating flue (21), an air inlet fan (221) is arranged in the preheating air flue (22), and the smoke exhaust fan (211) and the air inlet fan (221) are mutually driven through a driving mechanism.

3. A multifunctional high-efficiency heating stove according to claim 2, characterized in that: the device is characterized by further comprising a motor (3), wherein the power output end of the motor (3) drives the smoke exhaust fan (211) and the air inlet fan (221) to rotate respectively, and the motor (3) is electrically connected with a power supply.

4. A multifunctional high-efficiency heating stove according to claim 2, characterized in that: the smoke exhaust fan (211) is arranged in the preheating flue (21) through a smoke exhaust fan rotating shaft (212), the rotating plane of the smoke exhaust fan (211) is perpendicular to the arrangement direction of the preheating flue (21), the smoke exhaust fan rotating shaft (212) penetrates through the preheating tank wall (24), and a flue belt pulley (213) is arranged outside the preheating tank wall (24).

5. A multifunctional high-efficiency heating stove according to claim 2, characterized in that: the air inlet fan (221) is arranged in the preheating air channel (22) through an air inlet fan rotating shaft (222), the rotating plane of the air inlet fan (221) is perpendicular to the arrangement direction of the preheating air channel (22), the air inlet fan rotating shaft (222) penetrates through the preheating box wall (24), and an air channel belt pulley (223) is arranged outside the preheating box wall (24).

6. A multifunctional high-efficiency heating stove according to claim 2, characterized in that: the smoke exhaust fan (211) and the air inlet fan (221) are driven by a belt (28).

7. A multifunctional high-efficiency heating stove according to claim 3, characterized in that: the motor (3) comprises a motor belt pulley (31), and the power output end of the motor (3) is in transmission with the belt (28) through the motor belt pulley (31).

8. A multifunctional high-efficiency heating stove according to claim 1, characterized in that: the horizontal heights of the communication part of the preheating water jacket (23) and the hearth water jacket (12) and the communication part of the preheating flue (21) and the hearth flue (13) are lower than the height of the upper opening of the hearth (11).

9. A multifunctional high-efficiency heating stove according to claim 1, characterized in that: the hearth (11) is in a round table shape, and the diameter of the bottom surface is larger than that of the top surface.

10. A multi-functional high-efficient heating stove according to claim 4 or 5, characterized in that: a safety cover (4) is fixedly connected outside the preheating box (2); the safety cover (4) is wrapped on the outer sides of the top surface and the side surface of the flue belt pulley (213) and the air duct belt pulley (223), and the bottom surface of the safety cover (4) is provided with an opening.