CN210485802U - Waste heat recovery efficient energy-saving stove system - Google Patents

Abstract

The utility model discloses a waste heat recovery high-efficiency energy-saving stove system, which comprises a stove body, wherein the stove body comprises a bracket, a combustion chamber, an ignition assembly and a flue gas heat exchange assembly, and the combustion chamber is embedded and installed on the bracket; the ignition assembly is installed at the bottom of the combustion chamber, the combustion chamber is provided with an air inlet, and the air inlet is matched with the ignition assembly and used for providing oxygen supplementing air for the ignition assembly; the upper end of the combustion chamber is provided with a vent hole which is communicated with the flue gas heat exchange assembly; the flue gas heat exchange assembly comprises a flue gas channel and a heat conducting pipe which are communicated with the combustion chamber, the flue gas channel 51 is longitudinally provided with the heat conducting pipe for conducting heat, the heat conducting pipe is matched with the longitudinally arranged flue gas channel to be provided with a longitudinal heat conducting cavity, and a heat conducting medium is introduced from the upper end of the heat conducting cavity and is discharged from the lower end of the heat conducting cavity after being heated from top to bottom through the flue gas channel; the combustion chamber is provided with a support port, and the support port is used for supporting a cooker or a cover body and is blocked by the cooker or the cover body. The utility model discloses waste heat recovery energy-efficient cooking utensils system provides a gathering combustion chamber heat energy, the heat energy that make full use of burning chamber produced to and realize flue gas heat recovery, energy-efficient cooking utensils system.

Description

Waste heat recovery efficient energy-saving stove system

The technical field is as follows: the utility model relates to an energy-conserving kitchen cooking utensils, concretely relates to waste heat recovery energy-efficient cooking utensils system.

Background

The existing cooker is provided with a cooker body, a combustion chamber, an air inlet pipe and an air inlet pipe, wherein the air inlet pipe is communicated with the combustion chamber, air enters the combustion chamber through the air inlet pipe, fuel gas enters the combustion chamber through the air inlet pipe, the combustion chamber is provided with an ignition system, the ignition system ignites to generate heat energy, and flame generated by combustion is contacted with the bottom of a cooker body to transfer the heat energy to a cooker. The stove with the structure has mature technology and simple structure, and is widely applied. However, the flame has the highest temperature, the flue gas with higher temperature after the heat exchange between the flame and the bottom of the pan is directly discharged, the flue gas cannot be secondarily utilized and is directly discharged outdoors through a flue, the utilization rate of heat is relatively low, and the obvious characteristic is that the kitchen chefs in canteens or restaurants in summer are in 'steam saunas' all the day. Therefore, the cooker with the structure not only has serious heat energy loss, but also is not beneficial to the maintenance of the kitchen environment. Meanwhile, the gas consumption of the cooker with the structure is large, the combustion efficiency is low by directly introducing air, and the combustion is insufficient.

Meanwhile, in a large kitchen such as a dining room or a restaurant, the demand of hot water for washing and cooking is very large, and the existing kitchen of the dining room or the restaurant is usually required to be prepared with hot water for later use. How to design the steam that the kitchen range body can make full use of combustion chamber produced to and the heat energy loss and the heat in the make full use of flue gas that reduce the flue gas and take away improve the combustion efficiency of gas etc. become the present problem that awaits a solution of cooking utensils.

Disclosure of Invention

For solving the problem that current design exists, the utility model aims to provide an aggregation combustion chamber heat energy, the heat energy that make full use of burning combustion chamber produced to and realize flue gas heat recovery, energy-efficient cooking utensils system. In order to achieve the purpose, the utility model discloses a waste heat recovery high-efficiency energy-saving stove system, which comprises a stove body, wherein the stove body comprises a support, a combustion chamber, an ignition assembly and a flue gas heat exchange assembly, and the combustion chamber is embedded and installed on the support; the ignition assembly is installed at the bottom of the combustion chamber, the combustion chamber is provided with an air inlet, and the air inlet is matched with the ignition assembly and used for providing oxygen supplementing air for the ignition assembly; the upper end of the combustion chamber is provided with a vent hole which is communicated with the flue gas heat exchange assembly;

the flue gas heat exchange assembly comprises a flue gas channel and a heat conducting pipe which are communicated with the combustion chamber, the flue gas channel 51 is longitudinally provided with the heat conducting pipe for conducting heat, the heat conducting pipe is matched with the longitudinally arranged flue gas channel to be provided with a longitudinal heat conducting cavity, and a heat conducting medium is introduced from the upper end of the heat conducting cavity and is discharged from the lower end of the heat conducting cavity after being heated from top to bottom through the flue gas channel; the combustion chamber is provided with a support port, and the support port is used for supporting a cooker or a cover body and is blocked by the cooker or the cover body. The preferred scheme is as follows: a pot is also arranged; the cookware is embedded and supported on the bracket and seals the supporting port, and the smoke or hot gas generated by the combustion chamber is forced into the smoke heat exchange assembly;

or the cover body covers the upper end of the combustion chamber and blocks the supporting port, and is matched with the bracket to force the flue gas or hot gas generated by the combustion chamber into the flue gas heat exchange assembly, and the cover body is provided with a heat insulation layer;

or, an annular ventilation ring is further arranged, the annular ventilation ring is arranged around the support opening and is hermetically mounted on the bracket; the side wall of the annular ventilating ring facing the combustion chamber is provided with a plurality of ventilating holes, one end of the annular ventilating ring is communicated with the smoke channel, and the combustion chamber is communicated with the smoke channel through the ventilating holes and the annular ventilating ring.

The preferred scheme is as follows: the pot support is arranged on the support and used for supporting a pot or a cover body, and comprises a supporting opening

And the annular ventilation ring is arranged around the supporting port, the supporting port is arranged at the upper end of the combustion chamber, the annular ventilation ring is provided with a supporting surface for supporting the cookware or the cover body, and the cookware or the cover body is attached to the supporting surface and is blocked off the supporting port.

The preferred scheme is as follows: an annular pipe is arranged in the annular ventilating ring cavity channel in a matching mode, and a gap for allowing fluid to pass through is reserved between the outer wall of the annular pipe and the inner wall of the annular ventilating ring; one end of the annular pipe is communicated with the heat conducting cavity, and the other end of the annular pipe is provided with an outlet of the heat conducting medium;

or the supporting surface comprises an annular supporting part arranged on the upper surface of the annular ventilating ring and an annular inclined surface which is positioned on the inner side of the annular supporting part and is used for being matched with the bottom of the pot body.

The preferred scheme is as follows: the air inlet is provided with an air blower which is communicated with an air inlet pipe, and the air inlet pipe heats air through a flue gas channel and then leads the air into the combustion chamber; the air inlet is communicated with the smoke heating assembly and used for providing oxygen supplementing air to heat the smoke heating assembly.

The preferred scheme is as follows: the annular pipe is connected with the heat conduction pipe by a three-way valve, and two ends of the three-way valve are connected and control heat conduction media to enter the annular pipe from the heat conduction cavity;

or one end of the air inlet pipe is communicated with the air inlet of the blower, and the other end of the air inlet pipe is provided with a port communicated with the three-way valve; or the other end of the air inlet pipe is at least provided with a port which is provided with a valve and used for introducing oxygen supplementing air. The preferred scheme is as follows: the heat pipe is also arranged, one end of the heat pipe is connected with the annular ventilation ring, the other end of the heat pipe is connected with the heating device B, and the heat pipe conducts heat of the annular ventilation ring to the heating device B.

The preferred scheme is as follows: the heat conduction pipes are at least two, and each heat conduction pipe is arranged around the smoke channel and conducts heat through the smoke channel.

The preferred scheme is as follows: the heat conduction pipe is provided with two pipes, and comprises a first heat conduction pipe and a second heat conduction pipe, wherein the first heat conduction pipe comprises a first bending section, the second heat conduction pipe comprises a second bending section, the first bending section and the second bending section are mutually inserted and reserve a gap for fluid to pass through, and the gap for the fluid to pass through forms a flue gas channel.

The preferred scheme is as follows: the inner wall of the heat conduction cavity is axially provided with a heat pipe;

or the smoke channel is provided with a vent pipe which is independently led to the outside;

or the lower end of the heat conducting cavity is communicated with the heat storage water tank through a temperature control intelligent water pump.

The utility model has the advantages that:

1. the combustion chamber is embedded on the bracket, gathers the heat generated by combustion, and provides a foundation for fully utilizing the heat generated by combustion, and on the other hand, the combustion chamber is matched with an embedded pot or a cover body, so that the heat generated by combustion can be gathered for use, and the heat diffusion loss generated by a transparent combustion environment is avoided; in order to improve the combustion rate of the combustion chamber, the ignition assembly is provided with an air inlet and an air inlet pipe which provide oxygen supplementing air, the upper end of the combustion chamber is provided with a vent in a matching way, the vent is used for discharging smoke, meanwhile, an outlet for uniformly discharging hot air which is not utilized by the combustion chamber is provided, and conditions are provided for utilizing heat in the smoke and secondarily utilizing the heat generated by combustion;

2. the smoke channel in the smoke heat exchange assembly is longitudinally arranged, the natural phenomenon of air convection is utilized, smoke is guided to pass through and be discharged, meanwhile, heat released by combustion is also discharged, the heat conduction pipe directly conducts heat from the smoke channel and conveys the heat to the heat conduction medium in the heat conduction cavity, and heat energy in the smoke channel is transmitted out through heat conduction medium transmission; the heat conduction cavity is matched with the smoke channel to be longitudinally arranged, the heat conduction medium is input from the upper end of the heat conduction cavity and is output from the lower end after being heated, the condition that the temperature is gradually reduced from the lower end to the upper end when the smoke channel is longitudinally arranged is utilized, the heat conduction medium is heated step by step, the lowest temperature of the heat conduction medium is conducted from the smoke channel with relatively low temperature at the upper end, when the temperature of the heat conduction medium is gradually increased, the temperature of the smoke channel through heat conduction is also gradually increased, the heat conduction efficiency of the smoke channel is improved, the heat conduction medium can reach the highest temperature after heat conduction, and the heat in the smoke and the heat released by combustion can be utilized to a greater extent;

3. the utility model discloses a cooking utensils system, but wide application in commercial each large-scale kitchen cooking utensils system the air intake sets the air-blower, an air-supply line of air intake intercommunication, air-supply line are used for letting in the combustion chamber air, and the air in the air-supply line lets in the combustion chamber after flue gas channel heating, improves heating efficiency.

4. The support is provided with a pot support for supporting a pot or a cover body, the pot support is provided with an annular inclined plane and an annular supporting part for supporting various pots with different bottom shapes, and after the pot or the cover body is covered on the pot support, the upper end of the combustion chamber is relatively closed, so that hot gas in the combustion chamber cannot be dispersed from the bottom of the pot and is lost; the pot support is provided with an annular ventilation ring, the side wall of the annular ventilation ring facing the combustion chamber is provided with a plurality of ventilation holes, the annular ventilation ring is communicated with the smoke heat exchange assembly, and the number of through holes for the smoke and hot gas to be communicated with the smoke heat exchange assembly is increased; in addition, an annular pipe is arranged in the annular ventilating ring and is communicated with the heat conducting cavity, a gap for exhausting flue gas and hot gas is reserved between the outer wall of the annular pipe and the inner wall of the annular ventilating ring, the temperature of the heat conducting medium can be further improved due to the arrangement of the annular pipe, the temperature of the heat conducting medium exhausted from the heat conducting cavity can be improved, and the heat conducting efficiency is improved;

5. the annular ventilation ring is communicated with the superconducting pipe, and the superconducting pipe is connected with another stove or a heating device, so that the secondary utilization form of smoke or hot gas is increased, and the heat energy utilization rate is improved;

6. the heat conduction pipe is arranged around the flue gas channel, so that the heat conduction area from the flue gas channel is enlarged; the two heat conduction pipes are provided with matching surfaces which are mutually inserted, and a gap is reserved at the insertion position to form a snake-shaped smoke channel, so that on one hand, the heat conduction area of the smoke channel is increased, the heat energy utilization rate is improved, on the other hand, the heat conduction pipes directly enclose the smoke channel, the procedure and the material for manufacturing the smoke channel are saved, meanwhile, smoke in the smoke channel directly contacts with the heat conduction pipes, the obstruction is reduced, and the heat conductivity is improved; radial heat pipes are arranged in the heat conduction cavity, so that the heat conduction efficiency is improved.

7. The design that the outlet at the upper end of the smoke channel is directly communicated with the outside is to ensure that the smoke channel and the smoke exhaust ventilator channel share one exhaust channel so as to prevent the smoke and the oil smoke from generating black dirt in the exhaust channel.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a top view of the support port area;

FIG. 4 is a connecting structure of the ring pipe;

FIG. 5 is a schematic structural view of a flue gas heat exchange assembly;

FIG. 6 is a partial cross-sectional view of a flue gas heat exchange assembly.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings:

example 1:

as shown in fig. 1-6, a waste heat recovery high-efficiency energy-saving stove system comprises a stove body 1, wherein the stove body 1 comprises a support 6, a combustion chamber 3, an ignition assembly 4 and a flue gas heat exchange assembly 5, the ignition assembly 4 comprises a gas inlet pipe with the lower end into which gas is introduced, and the combustion chamber 3 is embedded in the support 6; the ignition assembly 4 is installed at the bottom of the combustion chamber 3, the combustion chamber 3 is provided with an air inlet 2, the air inlet 2 is matched with the ignition assembly 4 and used for providing oxygen supplementing air for the ignition assembly 4, and the air inlet 2 is arranged close to the ignition assembly 4; the upper end of the combustion chamber 3 is provided with a vent hole 7, the vent hole 7 is communicated with the flue gas heat exchange assembly 5, and hot gas and flue gas in the combustion chamber are introduced into the heat exchange assembly 5;

the flue gas heat exchange assembly 5 comprises a flue gas channel 51 and a heat conduction pipe 52 which are communicated with the combustion chamber 3, the flue gas channel 51 is vertically arranged in the longitudinal direction and conducts heat to the heat conduction pipe 52 in the longitudinal vertical direction, the heat conduction pipe 52 is provided with a heat conduction cavity 521 in cooperation with the flue gas channel 51 vertically arranged in the longitudinal direction, a heat conduction medium is introduced into the heat conduction cavity 521 from a water inlet 8 which is introduced from the upper end of the heat conduction pipe 52 and is discharged from a water outlet 9 which is connected with the lower end of the heat conduction cavity 521, and the heat conduction medium is heated step by the heat conduction pipe 52 which is heated through the flue gas channel 51 from top to bottom, so that. The heat transfer medium in this embodiment is liquid water. In order to increase the temperature of the whole heat conducting cavity 521, the heat pipe 19 may be axially disposed on the inner wall of the heat conducting cavity 521, and the uniform temperature property of the heat pipe 19 is utilized to quickly conduct the high temperature at the lower end to the upper end, thereby increasing the heat exchange efficiency of the heat conducting pipe 52. The combustion chamber 3 is provided with a support port 31, and the support port 31 is used for supporting a pot or a cover body and is blocked by the pot or the cover body.

In the embodiment, a cooker is also arranged; the embedded holding of pan is in on the support 6 and the shutoff support mouth 31, flue gas or steam that combustion chamber 3 generated are forced into flue gas heat exchange assemblies 5, and such structure sets up the pan and as the kitchen utensils and appliances of heating, also plays the effect of the flue gas in the combustion chamber and the baffling piece of steam, and separation flue gas and steam are from combustion chamber 3 freely giving off in to the atmosphere promptly.

The support 6 is provided with an annular vent ring 15, the annular vent ring 15 is arranged around the support port 31, in other words, the hollow part inside the annular vent ring 15 forms the support port 31, the annular vent ring 15 is hermetically installed on the support 6, and therefore, the combustion chamber 3 is installed in the support 6 in an embedded manner, and the other parts of the combustion chamber are not communicated with air except the support port 31, the vent hole 7 and the air inlet 2; a plurality of vent holes 7 are distributed on the side wall of the annular vent ring 15 facing the combustion chamber 3, one end of the annular vent ring 15 is communicated with the flue gas channel 51, and the combustion chamber 3 is communicated with the flue gas channel 51 through the vent holes 7 and the annular vent ring 15. In this embodiment, the pot support 13 for supporting the pot or the lid 20 is disposed on the support 6, the pot support 13 includes a support opening 31 and an annular vent ring 15 disposed around the support opening 31, the annular vent ring 15 is directly used as a support member for supporting the pot or the lid, the support opening 31 is disposed at the upper end of the combustion chamber 3, the annular vent ring 15 is provided with a support surface for supporting the pot or the lid 20, and the pot or the lid 20 is attached to the support surface and sealed off the support opening 31.

An annular pipe 151 is arranged in the cavity of the annular vent ring 15, a gap for fluid to pass through is reserved between the outer wall of the annular pipe 151 and the inner wall of the annular vent ring 15, one end of the annular pipe 151 is communicated with the heat conducting cavity 521, and the other end of the annular pipe 151 is provided with an outlet for heat conducting medium; annular ring 15 and air vent 7's setting for flue gas and steam can have a plurality of passageway air vents and let in the flue gas passageway in the combustion chamber 3, the logical play of steam and flue gas has been facilitated, the setting of toroidal tube 151 has also make full use of the high temperature at the peripheral position of support mouth 31, the temperature of heat-conducting medium has further been improved, the heat energy at each position of make full use of carries out the heat transfer to heat-conducting medium, the clearance between toroidal tube 151 and the 15 inner walls of annular ring 15 does not influence flue gas or the passageway of steam yet, a structure multipurpose.

The supporting surface comprises an annular supporting part 153 arranged on the upper surface of the annular ventilating ring 15 and an annular inclined surface 152 which is arranged at the inner side of the annular supporting part 153 and is used for matching with the bottom of the pot body 2. The annular support 153 may be a flat surface in an annular shape or may be a groove in an annular shape, wherein the support surface should be provided at the upper end of the ventilation hole 7, and therefore, the annular support 153 or the annular slope 152 is provided at the upper end of the ventilation hole 7.

The annular ventilation ring 15 is communicated with a superconducting pipe, the superconducting pipe is connected with another stove to heat the other stove through the superconducting pipe, the secondary utilization form of smoke or hot gas is increased, and the heat energy utilization rate is improved;

the air inlet 2 is provided with an air blower 11, the air blower 11 is communicated with an air inlet pipe 12, and the air inlet pipe 12 heats air through a flue gas channel 51 and then leads the air into the combustion chamber 3; the air inlet 2 is filled with oxygen supplementing air which is heated by the smoke heating component 5. The setting of this embodiment structure, the oxygenating wind is through flue gas passageway 51 the back of preheating, behind the rethread combustion chamber 3, can improve gas combustion efficiency, the energy saving, and does not additionally increase the heating oxygenating wind and the energy loss.

The annular pipe 151 is connected with the heat conduction pipe 52 by a three-way valve 19, and two ends of the three-way valve 19 are connected and control heat conduction media to enter the annular pipe 151 from a heat conduction cavity;

one end of the air inlet pipe 12 is communicated with an air inlet of the blower 11, and the other end of the air inlet pipe is provided with a port 121 which can be communicated with the three-way valve 19; the other end of the air inlet pipe 12 is at least provided with a port 122 which is provided with a valve and used for introducing oxygen supplementing air. On one hand, when the heat-conducting medium is liquid water, the oxygen supplementing air of the ignition assembly 4 can be supplemented directly through the port 122 under the control of the valve; on the other hand, the heat-conducting medium can be replaced by air as required, the three-way valve 19 is used, and the control port 121 is communicated with the annular pipe 151, so that the oxygen supplementing air introduced into the combustion chamber 3 is heated by the flue gas; or the heat conduction pipe 52 is led into the port 121, so that the led oxygen supplementing air is heated by the heat conduction pipe 52 and then led into the combustion chamber.

The heat pipe 16 is further arranged, one end of the heat pipe 16 is connected with the annular vent ring 15, the other end of the heat pipe 16 is connected with the heating device B, and the heat pipe 16 conducts heat of the annular vent ring 15 to the heating device B. The heating device B can be another cooker for cooking and is also a heating water tank which is arranged according to the requirement.

The heat conductive pipes 52 are provided with at least two, and each heat conductive pipe 52 is provided around the flue gas passage 51 and conducts heat through the flue gas passage 51.

The heat conduction pipes 52 are two pipes, and include a first heat conduction pipe 523 and a second heat conduction pipe 524, the first heat conduction pipe 523 and the second heat conduction pipe 524 are respectively provided with water inlets 81 and 82 of a heat conduction medium, the first heat conduction pipe 523 includes a first bending section 5231, the second heat conduction pipe 524 includes a second bending section 5241, the first bending section 5231 and the second bending section 5241 are mutually inserted and a gap S for passing a fluid is reserved, and the gap for passing the fluid forms the flue gas channel 51.

In this embodiment, the flue gas channel 51 is provided with a vent pipe 511 which is separately led to the outdoor, so that the flue gas and the oil smoke are prevented from being mixed and accumulated with black dirt; the lower end of the heat conducting cavity 521 is communicated with the heat storage water tank 17 through a temperature control intelligent water pump 22.

The waste heat recovery efficient energy-saving stove system has the advantages that the temperature of the combustion chamber reaches 900 ℃ and is 200 ℃ higher than the temperature of the open hearth, the temperature of flue gas led out from the combustion chamber 3 reaches 600 ℃, the temperature of the flue gas finally discharged is 50 ℃ through heat exchange of the flue gas heat exchange assembly 5, the heat energy utilization rate reaches about 85%, and the heat utilization rate is greatly improved.

In this embodiment, the pot body 2 can be replaced by the cover body 20, the cover body 20 covers the combustion chamber 3 and seals the upper end of the combustion chamber 31, the support 6 is matched with the flue gas or the hot gas generated by the combustion chamber 3 to force the flue gas heat exchange assembly 5, the cover body 20 is provided with a heat insulation layer, when the pot does not need to be used, the cover body 20 covers the support port 31 to seal the support port 31 and utilizes the heat insulation layer to insulate heat, so that the combustion heat is directly conducted through the hot gas and the flue gas, and the stove system of the embodiment is used as a boiler.

The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present patent and to implement the same, so the scope of the present patent should not be limited by the embodiments, i.e. all equivalent changes and modifications made according to the spirit of the present patent disclosure still fall within the scope of the present patent.

Claims (10)

1. The utility model provides a waste heat recovery energy-efficient cooking utensils system, includes a kitchen body, and the kitchen body includes support, combustion chamber, ignition assembly and flue gas heat exchange assemblies, its characterized in that: the combustion chamber is embedded on the bracket; the ignition assembly is installed at the bottom of the combustion chamber, the combustion chamber is provided with an air inlet, and the air inlet is matched with the ignition assembly and used for providing oxygen supplementing air for the ignition assembly; the upper end of the combustion chamber is provided with a vent hole which is communicated with the flue gas heat exchange assembly;

the flue gas heat exchange assembly comprises a flue gas channel and a heat conducting pipe which are communicated with the combustion chamber, the flue gas channel 51 is longitudinally provided with the heat conducting pipe for conducting heat, the heat conducting pipe is matched with the longitudinally arranged flue gas channel to be provided with a longitudinal heat conducting cavity, and a heat conducting medium is introduced from the upper end of the heat conducting cavity and is discharged from the lower end of the heat conducting cavity after being heated from top to bottom through the flue gas channel; the combustion chamber is provided with a support port, and the support port is used for supporting a cooker or a cover body and is blocked by the cooker or the cover body;

the annular ventilation ring is arranged around the support opening and is hermetically arranged on the bracket; the side wall of the annular ventilation ring facing the combustion chamber is provided with a plurality of ventilation holes, one end of the annular ventilation ring is communicated with the smoke channel, the combustion chamber is communicated with the smoke channel through the ventilation holes and the annular ventilation ring, the annular ventilation ring is communicated with the superconducting pipe, and the superconducting pipe is connected with another stove or a heating device.

2. The waste heat recovery high-efficiency energy-saving stove system as claimed in claim 1, characterized in that: a pot is also arranged; the cookware is embedded and supported on the bracket and seals the supporting port, and the smoke or hot gas generated by the combustion chamber is forced into the smoke heat exchange assembly;

or the cover body covers the upper end of the combustion chamber and blocks the support port, the cover body is matched with the support to force the smoke or hot gas generated by the combustion chamber into the smoke heat exchange assembly, and the cover body is provided with a heat insulation layer.

3. The waste heat recovery high-efficiency energy-saving stove system as claimed in claim 2, characterized in that: the pot support that is used for supporting pan or lid is set up on the support, the pot support includes that one supports mouthful and encircles the annular ring that ventilates that supports mouthful setting, support mouthful setting in the upper end of combustion chamber, the annular is ventilated and is equipped with the support on the ring the holding surface of pan or lid, pan or lid laminating are in on the holding surface and the shutoff support mouthful.

4. The waste heat recovery high-efficiency energy-saving stove system as claimed in claim 3, characterized in that: an annular pipe is arranged in the annular ventilating ring cavity channel in a matching mode, and a gap for allowing fluid to pass through is reserved between the outer wall of the annular pipe and the inner wall of the annular ventilating ring; one end of the annular pipe is communicated with the heat conducting cavity, and the other end of the annular pipe is provided with an outlet of the heat conducting medium;

or the supporting surface comprises an annular supporting part arranged on the upper surface of the annular ventilating ring and an annular inclined surface which is positioned on the inner side of the annular supporting part and is used for being matched with the bottom of the pot body.

5. The heat recovery high efficiency energy saving kitchen range system as claimed in claim 4, characterized in that: the air inlet is provided with an air blower which is communicated with an air inlet pipe, and the air inlet pipe heats air through a flue gas channel and then leads the air into the combustion chamber; the air inlet is communicated with the smoke heating assembly and used for providing oxygen supplementing air to heat the smoke heating assembly.

6. The waste heat recovery energy-efficient cooking stove system of claim 5, characterized in that: the annular pipe is connected with the heat conduction pipe by a three-way valve, and two ends of the three-way valve are connected and control heat conduction media to enter the annular pipe from the heat conduction cavity;

or one end of the air inlet pipe is communicated with the air inlet of the blower, and the other end of the air inlet pipe is provided with a port communicated with the three-way valve; or the other end of the air inlet pipe is at least provided with a port which is provided with a valve and used for introducing oxygen supplementing air.

7. The waste heat recovery high-efficiency energy-saving stove system as claimed in any one of claims 2, 3, 5 and 6, characterized in that: the heat pipe is also arranged, one end of the heat pipe is connected with the annular ventilation ring, the other end of the heat pipe is connected with the heating device B, and the heat pipe conducts heat of the annular ventilation ring to the heating device B.

8. The waste heat recovery high-efficiency energy-saving stove system as claimed in any one of claims 1, 2, 3, 5 and 6, characterized in that: the heat conduction pipes are at least two, and each heat conduction pipe is arranged around the smoke channel and conducts heat through the smoke channel.

9. The waste heat recovery energy-efficient cooking utensils system of claim 8 wherein: the heat conduction pipe is provided with two pipes, and comprises a first heat conduction pipe and a second heat conduction pipe, wherein the first heat conduction pipe comprises a first bending section, the second heat conduction pipe comprises a second bending section, the first bending section and the second bending section are mutually inserted and reserve a gap for fluid to pass through, and the gap for the fluid to pass through forms a flue gas channel.

10. The waste heat recovery high-efficiency energy-saving stove system as claimed in any one of claims 1, 2, 3, 5, 6 and 9, characterized in that: the inner wall of the heat conduction cavity is axially provided with a heat pipe;

or the smoke channel is provided with a vent pipe which is independently led to the outside;

or the lower end of the heat conducting cavity is communicated with the heat storage water tank through a temperature control intelligent water pump.

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