CN211625330U - Waste heat utilization system of environment-friendly fuel stove - Google Patents

Abstract

The utility model discloses a waste heat utilization system of an environment-friendly fuel cooking range, which relates to the technical field of energy-saving cooking ranges and comprises a furnace base with a furnace opening and a water tank, wherein a material placing grid is arranged in the furnace base, the furnace base is divided into an air inlet area and a combustion area by the material placing grid, the furnace base is provided with an air inlet communicated with the air inlet area, and the furnace base is provided with at least one smoke outlet in the combustion area; the water tank comprises a tank body and a heat exchange assembly, a connecting port and a smoke outlet which are communicated are arranged on the heat exchange assembly, the smoke outlet is communicated with the atmosphere, the connecting port is exposed out of the surface of the tank body and is connected with a smoke outlet through a transmission pipeline, a cleaning port is formed in an upper top plate and/or a side plate of the tank body, and a cover plate is detachably connected to the cleaning port. The smoke outlet is formed in the stove base, so that other heat except for heat supply for the frying pan can be conveyed to the heat exchange assembly through the smoke outlet, water in the water tank is heated, the heat utilization rate is improved, and the energy-saving effect is achieved.

Description

Waste heat utilization system of environment-friendly fuel stove

Technical Field

The utility model belongs to the technical field of the technique of energy-saving kitchen range and specifically relates to a waste heat utilization system of environmental protection fuel kitchen range is related to.

Background

In recent years, development of environment-friendly fuel stoves has been promoted in accordance with national work return to forestry projects, new rural construction projects in various regions, earthquake relief projects, fluorine reduction and stove change projects implemented by the ministry of health, one stove warming project of the ministry of agriculture, environment-friendly fuel stoves such as biomass brought into agricultural machinery subsidy projects in various regions, trial projects of new rural warming projects of the ministry of construction, and the like.

Utility model for instance publication number CN207962726U discloses a living beings granule direct combustion kitchen range, includes: the device comprises a furnace body, an adjusting seat, an ash drawer, a feeding window, an ash shaking handle, a furnace grate, a blast port, a water inlet, a water tank, a water outlet, an emptying port, a stove port, a smoke outlet and a connecting rod; the adjusting seat is arranged at the lower part of the furnace body and is connected with the furnace body through threads; the ash drawer is arranged at the lower part of the furnace body and is connected with the furnace body in a sleeving manner; the feeding window is arranged on one side of the furnace body and is connected with the furnace body through a rotating shaft; the ash shaking handle is arranged on one side of the furnace body and is connected with the furnace body through a rotating shaft; the grate is arranged in the furnace body and is connected with the furnace body through a rotating shaft; the blast hole is arranged on one side of the furnace body and is connected with the furnace body in a bolt fixing mode; the water inlet is arranged on one side of the water tank, and the water inlet and the water tank are of an integrated structure; the water tank is arranged at the upper part of the furnace body, and the water tank and the furnace body are of an integrated structure; the water outlet is arranged on one side of the water tank, and the water outlet and the water tank are of an integrated structure; the emptying port is arranged on one side of the water tank, and the emptying port and the water tank are of an integrated structure; the stove opening is arranged at the upper part of the stove body, and the stove opening and the stove body are of an integrated structure; the smoke outlet is arranged on one side of the furnace body and is connected with the furnace body in a bolt fixing mode; the connecting rod sets up in the upper portion of shaking grey handle, and the connecting rod is connected with shaking grey handle through bolt fastening mode.

According to the scheme, the water tank is arranged, so that redundant heat generated by biomass combustion can be utilized, and energy is saved. However, when the cooking range is used for cooking, the heat directly transferred to the frying pan is reduced because the water in the water tank needs to absorb heat when being heated, and the heat on the frying pan is not highly utilized. Simultaneously, water in the water tank can produce the incrustation scale in heating process, and the incrustation scale is except not easy clearance, because its self poor heat conductivity causes the programming rate of temperature of water in the water tank slow, also can cause the waste of heat energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waste heat utilization system of environmental protection fuel kitchen range, through set up the exhaust port on the furnace body and carry the hydrothermal to the water tank in to heat exchange assemblies through transmission pipeline, reached the purpose that the internal waste heat of furnace was by make full use of, simultaneously because the water tank is the part that sets up alone, can not divide at the fire door position and walk the heat that acts on the frying pan, improve thermal utilization ratio.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the waste heat utilization system of the environment-friendly fuel cooking range comprises a furnace base with a furnace opening and a water tank, wherein a material placing grid is arranged in the furnace base, the furnace base is divided into an air inlet area and a combustion area by the material placing grid, an air inlet communicated with the air inlet area is formed in the furnace base, and at least one smoke exhaust opening is formed in the combustion area on the furnace base; the water tank comprises a tank body and a heat exchange assembly, wherein a connecting port and a smoke outlet which are communicated are arranged on the heat exchange assembly, the smoke outlet is communicated with the atmosphere, the connecting port is exposed out of the surface of the tank body and is connected with a smoke outlet through a transmission pipeline, a cleaning port is formed in an upper top plate and/or a side plate of the tank body, and a cover plate is detachably connected to the cleaning port.

Through adopting above-mentioned technical scheme, set up the exhaust port on the furnace base for other heats except that supplying heat for the frying pan can be through the exhaust port carry heat exchange assembly in, heat the water in the water tank, improved thermal utilization ratio, reached energy-conserving effect. Meanwhile, the water tank is provided with a cleaning port, so that scale can be cleaned conveniently, heat conducted out of the furnace body can be effectively utilized, and the energy-saving effect is further achieved. Moreover, the water tank is a separately arranged component, so that the heat acting on the frying pan can not be shared at the position of the fire hole, and the utilization rate of the heat is improved; meanwhile, the number of parts arranged on the furnace body is reduced, the probability of damage of the parts on the furnace body is reduced, and the service life of the furnace body can be prolonged.

Furthermore, the furnace base comprises a furnace shell, a high-temperature-resistant furnace pipe arranged inside the furnace shell and a heat insulation layer arranged between the furnace shell and the high-temperature-resistant furnace pipe, and the smoke exhaust port penetrates through the furnace shell, the heat insulation layer and the high-temperature-resistant furnace pipe.

Through adopting above-mentioned technical scheme, the life of furnace base can be prolonged to high temperature resistant stove courage, and the heat preservation can reduce thermal scattering and disappearing for heat in the high temperature resistant stove courage can be effectively utilized, and the exhaust port can be unified the drainage with remaining heat in the high temperature resistant stove courage, improves the utilization ratio of waste heat.

Furthermore, the calibers of the smoke exhaust ports are sequentially reduced along the direction from the high-temperature resistant furnace pipe to the furnace shell.

By adopting the technical scheme, the smoke outlet is larger in caliber close to the high-temperature-resistant furnace pipe, so that the heat absorption area can be enlarged, the rear caliber is gradually reduced, the flow speed can be increased, and the emission rate of the utilized smoke is improved.

Furthermore, the box body and/or the heat exchange assembly are/is provided with an ash removal port, the ash removal port is communicated with the inside of the heat exchange assembly, and the ash removal port is provided with a dustproof plug.

Through adopting above-mentioned technical scheme, because easily deposition on heat exchange assembly after discharging the flue gas, the setting up of deashing mouth facilitates the user and clears up the deposition to improve the utilization efficiency of the interior waste heat of heat exchange assembly.

Furthermore, sealing elements are arranged at two ends of the transmission pipeline and are respectively connected with the smoke outlet and the connecting port in a sealing mode, the transmission pipeline is made of refractory stainless steel pipelines, and a second heat insulation layer and an outer skin are sequentially arranged outside the transmission pipeline.

Through adopting above-mentioned technical scheme, the leakproofness of transmission pipeline both ends junction can be improved in the setting of sealing member, and the setting of the second heat preservation on the transmission pipeline can effectively prevent that the heat scatters and disappears in the transmission course, further improves the utilization efficiency of waste heat.

Furthermore, the exhaust port is provided with one, heat exchange assembly is including setting up in the inside exhaust pipe of box, the vertical or level setting of exhaust pipe is inside the box, and connector and exhaust port arrange the box respectively in on lower plate and the last roof, the washing mouth sets up in last roof and is located exhaust pipe both sides position.

Through adopting above-mentioned technical scheme, the waste heat of exhaust port is discharged from the outlet flue after passing through exhaust pipe, thereby the purpose that the waste heat was utilized is reached in the water in the box heating through exhaust pipe, and exhaust pipe sets to vertical or level in order to improve the heating route of exhaust pipe in the box to further improve the utilization efficiency of waste heat.

Furthermore, the exhaust ports are provided with a plurality of exhaust ports, each exhaust port is connected with a transmission pipeline, the heat exchange assemblies comprise exhaust pipelines the number of which is consistent with that of the exhaust ports, the exhaust pipelines are distributed on two sides inside the box body, and the cleaning ports are arranged in the middle of the upper top plate of the box body.

Through adopting above-mentioned technical scheme, the exhaust port is provided with a plurality of waste heat that can diversely gather in the stove courage to smoke exhaust pipe in the box is provided with a plurality of areas that have increased with the water contact in the box, has improved the utilization efficiency of waste heat.

Further, the exhaust port is provided with a plurality of to be connected with collection petticoat pipe through at the stove seat external seal, the exhaust port all covers and is established in the collection petticoat pipe, has seted up the switching mouth on the collection petticoat pipe, transmission pipeline one end and switching mouth sealing connection, the other end and connector sealing connection.

Through adopting above-mentioned technical scheme, the exhaust port is provided with a plurality of waste heat that can diversely gather in the stove courage to carry in unison the exhaust waste heat of exhaust port through collection petticoat pipe, make overall structure simple to operate.

Furthermore, a shunting cover is arranged on the connecting port, the heat exchange assembly comprises a plurality of smoke exhaust pipelines, the connecting ports of the smoke exhaust pipelines are all covered in the shunting cover, and the shunting cover is communicated with the smoke exhaust port through a transmission pipeline; the smoke exhaust pipeline is distributed on one side or two sides inside the box body, and the cleaning port is arranged in the middle of the top plate on the box body.

Through adopting above-mentioned technical scheme, the setting up of reposition of redundant personnel cover makes the simple to operate of exhaust port and connector, and the setting up of many exhaust pipes has increased the area with the water contact in the box, has improved the utilization efficiency of waste heat.

Furthermore, a furnace cover is connected to the box body through a water pipe, a cavity is formed in the furnace cover, and the cavity is communicated with the box body through a water pipe.

Through adopting above-mentioned technical scheme, when having fried dish or having done well the meal, environmental protection fuel has not burnt out yet, places the bell in the fire door position this moment, and the cavity in the bell can fill water, can heat the water of bell this moment, reaches the purpose of the water heating in the box simultaneously, has further reached the purpose that improves waste heat utilization efficiency.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the smoke outlet is formed in the stove base, so that the rest heat except for heat supplied to the frying pan can be conveyed into the heat exchange assembly through the smoke outlet to heat water in the water tank, the utilization rate of the heat is improved, and the energy-saving effect is achieved;

2. the furnace base mainly comprises a shell, a heat-insulating layer and a high-temperature-resistant furnace pipe, so that the heat loss in the furnace body is reduced, and the energy-saving effect is further achieved;

3. the water tank is a separately arranged component, so that the heat acting on the frying pan can not be shared at the position of the fire hole, and the utilization rate of the heat is further improved; meanwhile, the number of parts arranged on the furnace body is reduced, the probability of damage of the parts on the furnace body is reduced, and the service life of the furnace body can be prolonged.

4. The setting of bell makes when not placing the frying pan on the furnace body, can directly cover the fire door to through heating at the bell to the water in the water tank, further improve the holistic waste heat utilization ratio of kitchen range.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic partial cross-sectional view of a furnace base in one embodiment;

FIG. 3 is a simplified schematic view of the connection of the base to the housing of FIG. 2;

FIG. 4 is a simplified schematic view of another oven seat connected to the box;

FIG. 5 is a schematic view of a water tank according to an embodiment;

fig. 6 is a schematic structural view of a water tank in another embodiment.

Reference numerals: 100. a furnace base; 101. a furnace mouth; 102. an air inlet area; 103. a combustion zone; 110. placing a material grid; 111. a storage grid plate; 112. a rotating shaft; 113. a hand-held handle; 114. a gear; 120. an air inlet; 121. a material receiving plate; 130. a furnace shell; 140. a high temperature resistant furnace pipe; 150. a heat-insulating layer; 160. a smoke outlet; 200. a water tank; 210. a box body; 211. an upper top plate; 212. cleaning the opening; 213. a cover plate; 214. a water inlet pipe; 215. a water outlet pipe; 216. a blow-off pipe; 217. an exhaust hole; 218. a water level gauge; 220. a heat exchange assembly; 221. a connecting port; 222. a smoke outlet; 223. cleaning the ash hole; 224. a dustproof plug; 300. a transport pipeline; 310. a seal member; 400. a furnace cover; 410. a water pipe; 500. a smoke collecting hood; 600. a shunt cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A waste heat utilization system of an environment-friendly fuel cooking stove, referring to fig. 1, comprises a stove base 100 with a stove opening 101 and a water tank 200, wherein the water tank 200 is fixedly connected to the stove base 100 through a bolt or a welding mode.

Referring to fig. 2, the furnace base 100 includes a furnace shell 130, a high temperature resistant furnace tube 140 disposed inside the furnace shell 130, and an insulating layer 150 installed between the furnace shell 130 and the high temperature resistant furnace tube 140. The high temperature resistant furnace pipe 140 can be made of steel drill or cement, the furnace shell 130 can be made of stainless steel material, and the heat preservation layer 150 is made of perlite or aluminum silicate material and is filled between the furnace shell 130 and the high temperature resistant furnace pipe 140, so that the heat preservation effect of the temperature of the high temperature resistant furnace pipe 140 is achieved, and the heat is prevented from being dissipated through the furnace shell 130 as much as possible. The furnace base 100 is provided with a smoke outlet 160, the smoke outlet 160 penetrates through the furnace shell 130, the insulating layer 150 and the high temperature resistant furnace liner 140 and is located at a position close to the furnace opening 101, the aperture of the smoke outlet 160 is sequentially reduced along the direction from the furnace liner to the furnace shell 130, and the waste heat can be output and utilized through the smoke outlet 160.

The stove base 100 is also provided with a material placing grid 110, and the material placing grid 110 divides the stove base 100 into an air inlet area 102 and a combustion area 103. The material placing grid 110 comprises a rotating shaft 112 which is rotatably connected in the high-temperature resistant furnace pipe 140 around the axis thereof and a plurality of object placing grid plates 111 which are arranged on the rotating shaft 112 in a staggered manner, wherein the rotating shaft 112 extends towards the furnace shell 130 and is provided with a handheld handle 113. It should be noted that one or at least two rotating shafts 112 may be provided. Take two axis of rotation 112 as an example, be provided with gear 114 on axis of rotation 112 coaxially, adjacent gear 114 meshing to be provided with handheld handle 113 on an axis of rotation 112, can rotate in step through rotating handheld handle 113 and put the thing grid tray, fully stir the fuel, make the fuel burning more abundant. In addition, the storage grid plates arranged on the adjacent rotating shafts 112 are arranged in a staggered manner, and included angles are formed between the storage grid plates. The adjacent storage grid plates are not in the same horizontal plane, and the fuel can be more fully contacted with the air.

In addition, an air inlet 120 communicated with the air inlet area 102 is formed in the furnace base 100, a material receiving plate 121 sliding with the furnace base 100 is arranged in a pushing and pulling mode at the position of the air inlet 120, and the material receiving plate 121 is located below the material placing grid 110 and can partially receive dust. In another embodiment, a blower may be disposed at the intake vent 120.

Referring to fig. 3, a transfer duct 300 is connected to the discharge port 160, and the other end of the transfer duct 300 is connected to the water tank 200. In particular, the connection between the transfer pipe 300 and the smoke outlet 160 may be performed by welding and/or high temperature resistant sealant, or the end of the transfer pipe 300 is provided with a sealing member 310, which is inserted into the smoke outlet 160 in a sealing manner, and the high temperature resistant sealant is applied at any time when necessary. The transmission pipeline 300 can be made of a fire-resistant stainless steel pipeline, a second heat insulation layer and a sheath are sequentially arranged outside the transmission pipeline 300, the second heat insulation layer can be made of perlite or aluminum silicate materials, the sheath is made of stainless steel channel steel, one end of the sheath is welded or screwed with the furnace shell 130, the second heat insulation layer wraps the transmission pipeline 300, and one side of the second heat insulation layer is filled in the sheath.

In another embodiment, referring to fig. 4, a plurality of smoke outlets 160 are provided, and a smoke collecting hood 500 is hermetically connected outside the stove base 100, the smoke outlets 160 are all covered in the smoke collecting hood 500, an adapter port is opened on the smoke collecting hood 500, the above-mentioned transmission pipeline 300 is hermetically connected with the adapter port, and the connection manner is the same as the above-mentioned connection manner. The fume collecting hood 500 can be directly fastened or welded around the outside of the furnace shell 130.

Referring to fig. 1 and 5, the water tank 200 includes a tank body 210 and a heat exchange assembly 220, a water inlet pipe 214 is disposed on a side plate of the tank body 210 near the bottom, a water outlet pipe 215 is disposed on the tank body 210 near an upper top plate 211, and the water inlet pipe 214 and the water outlet pipe 215 are disposed on two opposite side plates. A drain pipe 216 is provided at the same side of the outlet pipe 215 as the inlet pipe 214 to drain dirty water for cleaning scale. Be provided with fluviograph 218 on the box 210 lateral wall, fluviograph 218 includes both ends all with the transparent pipe of the inside intercommunication of box 210, and transparent pipe is vertical direction setting, and the personnel of being convenient for observe the inside water level of box 210. In order to allow water to enter normally, the upper top plate 211 of the tank body 210 is provided with an exhaust hole 217. In addition, a furnace cover 400 is connected to the box body 210 through a water pipe 410, a cavity is formed in the furnace cover 400, and the cavity is communicated with the box body 210 through the water pipe 410.

Referring to fig. 5, the heat exchange assembly 220 includes a smoke discharge duct disposed inside the box 210, the smoke discharge duct having a connection port 221 and a smoke discharge port 160, and disposed on the lower bottom plate and the upper top plate of the box 210, respectively, and two ends of the transfer duct 300 are hermetically connected to the connection port 221 through a sealing member 310. In one embodiment, the smoke exhaust pipe is horizontally disposed in the box 210, the smoke outlet 222 is disposed on one side of the top plate 211, and the cleaning opening 212 is opened in the middle of the top plate 211 and is opened with a cover plate 213. In another embodiment, the smoke exhaust duct is disposed in the middle of the box 210 and is vertically disposed, the smoke outlet 222 is disposed in the middle of the upper top plate 211, the cleaning ports 212 are disposed on two sides of the smoke exhaust port 222, and the cover plate 213 is disposed on the upper cover of the cleaning ports 212. The cover plate 213 may be hinged to the cleaning opening 212 at one side and clamped to the case 210 at the other side. Of course, in order to increase the path of the exhaust flue to improve the heat exchange effect, the exhaust flue may be configured in a shape of non-linear arrangement such as a spiral shape, a wave shape, a V shape, and the like.

In addition, an ash cleaning port 223 is formed on the transmission pipeline 300 communicated with the box body 210 and/or the heat exchange assembly 220, the ash cleaning port 223 is arranged right below the smoke exhaust pipeline and communicated with the smoke exhaust pipeline, and a dustproof plug 224 is arranged on the ash cleaning port 223. It should be noted that the smoke exhaust duct can be a flexible wave pipe, and the smoke exhaust duct is shaken in the ash removal process to improve the ash removal effect.

Referring to fig. 6, in another embodiment, a diversion cover 600 is disposed on the connection port 221, the heat exchange assembly 220 includes a plurality of smoke exhaust pipes, the connection ports 221 of the plurality of smoke exhaust pipes are all covered in the diversion cover 600, and the diversion cover 600 is communicated with the smoke exhaust port 160 through the transmission pipe 300. The smoke exhaust pipes are distributed at both sides of the inside of the case 210, and the cleaning port 212 is disposed at the middle position of the top plate 211 on the case 210. Of course, the smoke exhaust pipes may be distributed at one side of the inside of the box 210.

In another embodiment, a plurality of smoke outlets 160 are provided, each smoke outlet 160 is hermetically connected with a transmission pipeline 300, the heat exchange assembly 220 includes smoke outlets in the same number as the smoke outlets 160, each smoke outlet corresponds to one smoke outlet 222, the smoke outlets 222 are distributed at two sides of the inside of the box 210, and the cleaning port 212 is disposed at the middle position of the top plate 211 on the box 210. Of course, a smoke collecting hood that is used for covering a plurality of smoke outlets 222 and is communicated with each other may be provided on the box body 210, and a through hole is provided on the smoke collecting hood for performing unified smoke discharging.

The working principle is as follows:

place living beings or other fuels on putting the material grid 110, utilize the amount of wind of air intake 120 to make the fuel can fully burn, place the frying pan on fire door 101 position to utilize the locating position of frying pan to avoid steam to spill over from fire door 101, avoided the heat in the stove courage to scatter and disappear from fire door 101, improved the utilization ratio of heat on the frying pan. In addition, the heat insulation layer 150 is arranged on the furnace base 100, so that the heat dissipated through the furnace base 100 body is reduced, and the waste heat in the furnace pipe can be guided in a centralized manner through the smoke outlet 160 and input into the heat exchange assembly 220 through the transmission pipeline 300, so that the utilization rate of the waste heat is improved. Because the water tank 200 is a separately arranged component, the heat acting on the frying pan can not be shared at the position of the fire hole 101, and the utilization rate of the heat is further improved; meanwhile, the number of parts arranged on the furnace body is reduced, the probability of damage of the parts on the furnace body is reduced, and the service life of the furnace body can be prolonged.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The waste heat utilization system of the environment-friendly fuel cooking stove comprises a stove base (100) with a stove opening (101) and a water tank (200), wherein a material placing grid (110) is arranged in the stove base (100), the stove base (100) is divided into an air inlet area (102) and a combustion area (103) by the material placing grid (110), and the stove base (100) is provided with an air inlet (120) communicated with the air inlet area (102), and is characterized in that the stove base (100) is provided with at least one smoke outlet (160) in the combustion area (103); the water tank (200) comprises a tank body (210) and a heat exchange assembly (220), wherein a connecting port (221) and a smoke outlet (222) which are communicated with each other are arranged on the heat exchange assembly (220), the smoke outlet (222) is communicated with the atmosphere, the connecting port (221) is exposed out of the surface of the tank body (210) and is connected with a smoke outlet (160) through a transmission pipeline (300), a cleaning port (212) is formed in an upper top plate (211) and/or a side plate of the tank body (210), and a cover plate (213) is detachably connected to the cleaning port (212).

2. The waste heat utilization system of the environment-friendly fuel stove as claimed in claim 1, wherein the stove base (100) comprises a stove shell (130), a high temperature resistant stove liner (140) arranged inside the stove shell (130), and a heat insulation layer (150) arranged between the stove shell (130) and the high temperature resistant stove liner (140), and the smoke exhaust port (160) penetrates through the stove shell (130), the heat insulation layer (150) and the high temperature resistant stove liner (140).

3. The waste heat utilization system of the eco-friendly fuel stove as set forth in claim 2, wherein the smoke discharge port (160) is sequentially reduced in caliber in a direction from the high temperature resistant furnace (140) to the furnace shell (130).

4. The waste heat utilization system of the environment-friendly fuel cooking stove as claimed in claim 1, wherein an ash cleaning opening (223) is formed in the box body (210) and/or the heat exchange assembly (220), the ash cleaning opening (223) is communicated with the interior of the heat exchange assembly (220), and a dustproof plug (224) is arranged on the ash cleaning opening (223).

5. The waste heat utilization system of the environment-friendly fuel cooking stove as claimed in claim 1, wherein sealing members (310) are installed at both ends of the transmission pipeline (300) and are respectively connected with the smoke exhaust port (160) and the connecting port (221) in a sealing manner, the transmission pipeline (300) is made of a fire-resistant stainless steel pipeline, and a second insulating layer and an outer skin are sequentially arranged outside the transmission pipeline (300).

6. The waste heat utilization system of the environment-friendly fuel cooking stove as claimed in any one of claims 1 to 5, wherein one smoke exhaust port (160) is provided, the heat exchange assembly (220) comprises a smoke exhaust pipe arranged inside the box body (210), the smoke exhaust pipe is vertically or horizontally arranged inside the box body (210), the connecting port (221) and the smoke exhaust port (160) are respectively arranged on a lower bottom plate and an upper top plate (211) of the box body (210), and the cleaning port (212) is arranged on the upper top plate and is positioned at two sides of the smoke exhaust pipe.

7. The waste heat utilization system of the environment-friendly fuel stove and range as claimed in any one of claims 1 to 5, wherein a plurality of smoke exhaust ports (160) are provided, each smoke exhaust port (160) is connected with a transmission pipeline (300), the heat exchange assembly (220) comprises smoke exhaust pipelines with the number consistent with that of the smoke exhaust ports (160), the smoke exhaust pipelines are distributed at two sides of the interior of the box body (210), and the cleaning port (212) is arranged at the middle position of the upper top plate (211) of the box body (210).

8. The waste heat utilization system of the environment-friendly fuel cooking stove as claimed in any one of claims 1 to 5, wherein a plurality of smoke outlets (160) are provided, a smoke collecting hood (500) is connected to the outside of the stove base (100) in a sealing manner, the smoke outlets (160) are all covered in the smoke collecting hood (500), an adapter port is arranged on the smoke collecting hood (500), one end of the transmission pipeline (300) is connected with the adapter port in a sealing manner, and the other end of the transmission pipeline is connected with the connector port (221) in a sealing manner.

9. The waste heat utilization system of the environment-friendly fuel stove and range as claimed in any one of claims 1 to 5, wherein a shunting cover (600) is provided on the connection port (221), the heat exchange assembly (220) comprises a plurality of smoke exhaust pipes, the connection ports (221) of the plurality of smoke exhaust pipes are covered in the shunting cover (600), and the shunting cover (600) is communicated with the smoke exhaust port (160) through the transmission pipe (300); the smoke exhaust pipeline is distributed on one side or two sides inside the box body (210), and the cleaning port (212) is arranged in the middle of the top plate (211) on the box body (210).

10. The waste heat utilization system of the environment-friendly fuel stove as claimed in claim 1, wherein the box body (210) is connected with a stove cover (400) through a water pipe (410), a cavity is formed in the stove cover (400), and the cavity is communicated with the box body (210) through the water pipe (410).

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