WO2019042266A1 - Système de surface de cuisson économe en énergie, efficace, à récupération de chaleur - Google Patents

Système de surface de cuisson économe en énergie, efficace, à récupération de chaleur Download PDF

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Publication number
WO2019042266A1
WO2019042266A1 PCT/CN2018/102588 CN2018102588W WO2019042266A1 WO 2019042266 A1 WO2019042266 A1 WO 2019042266A1 CN 2018102588 W CN2018102588 W CN 2018102588W WO 2019042266 A1 WO2019042266 A1 WO 2019042266A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
flue gas
combustion chamber
heat
annular
Prior art date
Application number
PCT/CN2018/102588
Other languages
English (en)
Chinese (zh)
Inventor
白洪华
Original Assignee
杭州超导科技有限公司
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Filing date
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Publication of WO2019042266A1 publication Critical patent/WO2019042266A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/10—Arrangement or mounting of ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C13/00—Stoves or ranges with additional provisions for heating water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to a kitchen stove, in particular to a waste heat recovery high-efficiency energy-saving cooker system.
  • the existing cooker is provided with a cooker, a combustion chamber, an air inlet pipe and an intake pipe communicating with the combustion chamber, the air enters the combustion chamber through the air inlet pipe, the gas enters the combustion chamber through the intake pipe, and the combustion chamber is provided with an ignition system, and the ignition The system ignites to generate heat, and the flame produced by the combustion contacts the bottom of the pot to transfer heat to the pot.
  • the cooker of this structure is mature in technology and simple in structure, and thus has been widely used. However, the temperature of the flame is the highest outside flame, and the flue gas with higher temperature after the heat exchange between the flame and the bottom of the pot is directly discharged, and is not directly discharged to the outside through the flue through secondary use, and the heat utilization rate is relatively low.
  • the obvious characterization is that the kitchen chef in the summer canteen or restaurant is in the "sauna" every day. It can be seen that the cooker of this structure not only has serious heat loss, but also is not conducive to the maintenance of the kitchen environment. At the same time, the gas stove of this structure has a large gas consumption, and the direct combustion air is low in combustion efficiency and insufficient in combustion.
  • the object of the present invention is to provide a heat collecting furnace thermal energy, fully utilizing the heat energy generated by the combustion chamber, and realizing the heat recovery of the flue gas, and the energy-saving cooker system.
  • a waste heat recovery high-efficiency energy-saving cooktop system of the present invention includes a cooker including a bracket, a combustion chamber, an ignition assembly, and a flue gas heat exchange assembly, wherein the combustion chamber is embedded in the bracket
  • the ignition assembly is installed at the bottom of the combustion chamber, the combustion chamber is provided with an air inlet, the air inlet is arranged with the ignition assembly and is used for supplying an oxygen supply to the ignition assembly; and the upper end of the combustion chamber is provided with a ventilation hole.
  • the vent hole communicates with the flue gas heat exchange component;
  • the flue gas heat exchange assembly includes a casing 3 for exhausting flue gas, and a heat pipe disposed in the casing, the heat pipe is inserted from one end of the flue gas outlet of the casing, from the shell
  • the heat exchange tube is provided with a heat-conducting medium, and the heat-conducting medium is provided from the upper end of the heat-conducting tube;
  • the upper end of the combustion chamber is provided with a vent, and the lower end of the shell is connected to the vent Flue gas flowing into the combustion chamber;
  • annular heat exchange ring is disposed, the annular heat exchange ring is disposed around the support port, and the annular heat exchange ring is connected to the heat transfer medium passing through the heat pipe for heat exchange;
  • a water tank is provided, the casing is submerged in the water tank, and the water tank communicates with the annular heat exchange ring to pass into the heat transfer medium.
  • the combustion chamber is provided with a support port for supporting the pot or the cover body and being blocked by the pot or the cover body.
  • the annular heat exchange ring is connected to the water tank through a cavity.
  • the vent is disposed on the annular heat exchange ring
  • a flue gas duct communicating with the vent opening through the cavity into the housing.
  • the support port is formed around the annular heat exchange ring.
  • a pot is also provided; the pot is embedded on the bracket and blocks the support port, and the flue gas or hot gas generated by the combustion chamber is forced into the flue gas heat exchange assembly;
  • a cover body is further disposed, the cover body is closed at an upper end of the combustion chamber and the support port is blocked, and the flue gas or hot air generated by the combustion chamber is forced into the flue gas heat exchange component by the bracket.
  • the cover body is provided with a heat insulation layer.
  • the pot holder comprises an annular heat exchange ring and a support port formed by the annular heat exchange ring, and the annular heat exchange ring is provided with a support surface on a side of the support port, and the pot or cover is fitted Blocking the support port on the support surface;
  • the support surface includes an annular support surface disposed on the upper surface of the annular heat exchange ring and an annular slope surface on the inner side of the annular support portion for engaging the bottom of the pot body.
  • the air inlet is provided with a blower, and the air blower is connected to an air inlet pipe, and the air inlet pipe passes through the flue gas passage to heat the air and then enters the combustion chamber; and the air inlet port is used to provide an oxygen supply air. It is heated by the flue gas heating element.
  • a second heat exchange tube is further disposed, one end of the second heat exchange tube is connected to the outer wall of the annular heat exchange ring, and the other end is connected to a heating device, and the second heat exchange tube transmits heat of the annular heat exchange ring to The heating device.
  • the combustion chamber is embedded on the bracket and the hot gas overflows the combustion chamber by the pot, and the heat of the combustion chamber is gathered to facilitate the full utilization of the heat generated by the combustion; on the other hand, the stove is equipped with an embedded support.
  • the pot or the cover body enables the heat generated by the combustion to be collected and used, thereby avoiding the diffusion loss of heat generated by the open and transparent combustion environment; in order to increase the combustion rate of the combustion chamber, the ignition assembly is provided with an air inlet for providing an oxygen-enriched air.
  • the venting port is arranged at the upper end of the combustion chamber, and is used for the discharge of the flue gas, and also provides a unified discharge outlet for the unused hot air of the combustion chamber, which is used for the utilization and combustion of heat in the flue gas.
  • the secondary use of heat provides conditions;
  • the flue gas passage in the flue gas heat exchange assembly is longitudinally arranged, which utilizes the natural phenomenon of air convection, guides the flue gas to pass through and discharges, and also discharges the heat released by the combustion, and the heat transfer tube directly conducts heat from the flue gas passage and transports To the heat-conducting medium in the heat-conducting cavity, the heat energy in the flue gas channel is transmitted through the heat-conducting medium, and the heat-conducting efficiency is high; the heat-conducting pipe is arranged in reverse with the flue gas channel, and the heat-conducting medium flue gas inlet is introduced, and the smoke is heated after being heated.
  • the inlet of the gas passage is opened, and the temperature from the lower end to the upper end is gradually reduced when the flue gas passage is longitudinally arranged, and the heat transfer medium is gradually heated, the heat transfer efficiency of the flue gas passage is improved, the heat conduction efficiency is improved, and the heat transfer efficiency can be increased to a greater extent.
  • the cooker system of the present invention can be widely applied to various large-scale kitchen stove systems for commercial use, and a blower is disposed at the air inlet, the air inlet is connected to an air inlet pipe, and the air inlet pipe is used for introducing air into the combustion chamber.
  • the air in the air inlet duct is heated by the flue gas passage and then introduced into the combustion chamber to improve the heating efficiency.
  • the pot bracket is arranged on the bracket for supporting the pot or the lid body, and the pot bracket is provided with an annular inclined surface and an annular supporting surface for supporting various pots of different bottom shapes, when the pot or the lid is covered in the pot After the bracket is relatively closed, the upper end of the combustion chamber is relatively closed, so that the hot air in the combustion chamber is not scattered under the pot and is lost without any reason; an annular heat exchange ring is arranged on the pot bracket, and the annular heat exchange ring is disposed toward the side wall of the combustion chamber. Vent
  • the annular venting ring is connected to the supercatheter, and the supercatheter is connected to another cooking appliance or connected to a second heating device, which increases the form of secondary utilization of flue gas or hot gas, and improves the utilization rate of thermal energy;
  • the outlet of the upper end of the flue gas passage is directly connected to the outdoor design, so that the flue gas passage and the hood passage share an exhaust passage to prevent the black smoke from being generated in the exhaust passage by the flue gas and the soot.
  • Figure 1 is a schematic view 1 of the structure of the present invention.
  • Figure 2 is a cross-sectional view of the portion A of Figure 1;
  • Figure 3 is a schematic view 2 of the heat exchange structure of the present invention.
  • a waste heat recovery energy-efficient cooktop system includes a cooker 11 including a bracket 16, a combustion chamber 13, an ignition assembly 14, and a flue gas heat exchange assembly 15, and the ignition assembly 14 includes a lower end.
  • a gas inlet pipe for gas the combustion chamber 13 is embedded on the bracket 16;
  • the ignition assembly 14 is mounted at the bottom of the combustion chamber 13, and the combustion chamber 13 is provided with an air inlet, the The tuyere cooperates with the ignition assembly 14 and is provided for supplying the oxygen supply to the ignition assembly 14.
  • the air inlet is disposed adjacent to the ignition assembly 14; the upper end of the combustion chamber 13 is provided with a ventilation hole 2, and the ventilation hole 2 is connected to the flue gas heat exchange assembly 15 for reservation.
  • the hot gas and flue gas of the combustion chamber pass into the heat exchange assembly 5;
  • a flue gas heat exchange assembly includes a casing 3 for exhausting flue gas, and a heat pipe 4 is disposed in the casing 3, and the heat pipe 4 is from the casing
  • An end of the flue gas outlet of the gas passage 3 is opened, and is exhausted from the inlet end of the flue gas inlet of the casing 3, wherein the heat transfer pipe 4 is provided with a heat-conducting medium, and the heat-conducting medium is introduced from the inlet end of the heat-conducting pipe 4, that is, from the
  • the flue gas outlet of the casing 3 is open at one end; the upper end of the combustion chamber is provided with a vent 2, and the lower end of the casing 3 is connected to the vent 2;
  • An annular heat exchange ring 5 is arranged, the annular heat exchange ring 5 is arranged around the support port 1, and the annular heat exchange ring 5 is connected to the heat transfer medium passing through the heat pipe 4, and is heated by the hot gas at the upper end of the combustion chamber. Heat exchange, further increasing the temperature of the heat transfer medium flowing out of the heat pipe 4;
  • a water tank 6 is provided, and the casing 3 is submersedly installed in the water tank 6.
  • the flue gas passage of the casing 3 extends out of the water tank 6 to discharge flue gas, thereby realizing heat exchange in the water tank 6.
  • the heat transfer medium exchanges heat with the flue gas, and the water tank 6 communicates with the annular heat exchange ring 5 to pass into the heat transfer medium.
  • the casing 3 extends out of the water tank 6 and has a flue gas outlet reserved.
  • the heat transfer pipe 4 in the casing 3 through which the flue gas flows has realized one heat exchange in the flue gas, and the casing 3 is sunk in the water tank 6 to realize the outside of the flue gas.
  • the combined heat exchange between the inside of the flue gas and the outside of the flue gas makes the heat exchange of the flue gas very sufficient.
  • the heat pipe 4 is opened from one end of the flue gas outlet of the casing, and is exhausted from one end of the flue gas port of the casing 3, and the heat transfer medium is introduced from the upper end of the heat pipe 4, that is, from the casing.
  • the flue gas outlet of the 3 is opened at one end, and is taken out from the inlet end of the flue gas outlet, and the temperature of one end of the flue gas outlet is lower than the temperature of the end of the flue gas inlet, so that the heat transfer medium is gradually heated, and then the annular heat exchange ring 5 is passed, the ring
  • the heat exchange ring 5 is located around the support port 1 at the upper end of the combustion chamber, and is the place with the highest temperature.
  • the pot and the cover body provided by the support port 1 are combined to form a closed space, and the heat is concentrated in the combustion chamber.
  • it can not be dissipated, and the heat energy is not wasted, and the heat transfer of the heat transfer medium can be effectively realized, and the heat energy can be effectively utilized.
  • the annular heat exchange ring 5 and the water tank 6 are connected through a cavity 51, and the annular heat exchange ring 5 has a high heat temperature, which improves the circulation of the heat conductive medium between the annular heat exchange ring 5 and the water tank 6, and can further The heat exchange of the annular heat exchange ring 5 is sufficiently performed.
  • the vent 2 is disposed on the annular heat exchange ring 5, and the flue gas passage 21 communicated by the vent 2 communicates with the housing 3 through the cavity 51, and the cavity 51 is effectively utilized on the one hand.
  • the space prevents the vent 2 from being exposed outside the cooker, causing accidental injury, etc.
  • the flue gas passage 21 communicating with the vent 2 can exchange heat with the heat transfer medium, so that the flue gas passage 21 communicating with the vent 2 can be used ordinary.
  • the metal material can be selected from a wide range of materials, and the high temperature resistant material can be used without being burnt by high temperature, which saves cost and is safer, and can improve heat exchange efficiency and improve heat utilization.
  • the support port 1 is formed around the annular heat exchange ring 5, and can be directly installed on the existing stove body, which has small modifications to the existing stove body and is convenient to install.
  • the heat pipe 4 is made of a coil, which can improve heat exchange efficiency.
  • the present invention is further provided with a pot, the pot is embedded and sealed on the support port, and the flue gas or hot gas generated by the combustion chamber is forced into the flue gas heat exchange assembly;
  • a cover body is also provided, the cover body is closed at the upper end of the combustion chamber and the support port 1 is blocked, and the flue gas or hot gas generated by the combustion chamber is forced into the flue gas heat exchange component with the support port.
  • the cover body is provided with a heat insulation layer, and is directly heated when hot water is needed without using a stove. This design can be extended to the heating supply to the north, thus reducing the burden of electricity.
  • the water tank 6 is connected to the hot water storage tank 7 through a temperature-controlled intelligent water pump to realize storage of thermal energy.
  • the flue gas heat exchange assembly 15 includes a casing 3, a flue gas passage communicating with the combustion chamber 13 and a heat transfer pipe 4, the flue gas passage being vertically disposed vertically in the casing 3 and vertically vertical
  • the direction is heat conduction to the heat pipe 4, and the heat conductive medium passes through the water inlet 8 of the upper end of the heat pipe 4 through the flue gas outlet of the casing 3 into the heat pipe 4, and flows through the heat pipe 4 heated by the flue gas passage from top to bottom.
  • Heating, the temperature of the heat-conducting medium is heated step by step, and after the heat exchange is completed from the position where the temperature of the upper end of the upper end of the combustion chamber is completed through the annular heat exchange ring 5, it flows into the water tank 6.
  • the heat transfer medium in this embodiment selects liquid water.
  • a pot is also provided; the pot is embedded on the bracket 16 and blocks the support port 1, and the flue gas or hot gas generated by the combustion chamber 13 is forced into the flue gas heat exchange.
  • annular heat exchange ring 5 is disposed on the bracket 16, and the annular heat exchange ring 5 is disposed around the support port 1.
  • the hollow portion of the annular heat exchange ring 5 constitutes a support port 1, and the annular heat exchange ring 5 is sealed and installed.
  • the combustion chamber 13 is embedded in the interior of the bracket 16, and it is difficult to communicate with the air except for the support port 1, the vent hole 2 and the air inlet; the annular heat exchange ring 5 faces the combustion chamber 13
  • a vent hole 2 is disposed on the side wall through which the combustion chamber 13 passes through the vent hole 7 and the cavity 51 to communicate with the flue gas passage.
  • the bracket 16 is provided with a pot bracket for supporting a pot or a cover.
  • the pot bracket includes a support port 1 and an annular heat exchange ring 5 disposed around the support port 1 for directly utilizing annular heat exchange.
  • the ring 5 serves as a support member for supporting the pot or the cover body, and the support port 1 is disposed at an upper end of the combustion chamber 13, and the annular heat exchange ring 5 is provided with a support surface for supporting the pot or the cover body 20, The pot or cover 20 is attached to the support surface and blocks the support opening 1.
  • the support surface includes an annular support surface 153 disposed on the upper surface of the annular heat exchange ring 5, and an annular slope 152 on the inner side of the annular support surface 153 for engaging the bottom of the pot body 2.
  • the annular support surface 153 may be an annular plane or an annular groove, and the annular support surface 153 or the annular slope 152 is disposed at the upper end of the vent hole 2.
  • the air inlet is provided with a blower 19, and the air blower 19 is connected to an air inlet pipe 12, and the air inlet pipe 12 is heated by the flue gas passage to the combustion chamber 13; the air inlet is provided for providing The oxygen wind is heated and exchanged by the flue gas heating unit 5.
  • the gas combustion efficiency can be improved, the energy can be saved, and the energy is not increased by heating the oxygen-enriched wind.
  • a second heat exchange tube 16 is also provided.
  • the second heat exchange tube 16 may be a heat transfer tube of a superconducting material.
  • One end of the second heat exchange tube 16 is connected to the annular heat exchange ring 5, and the other end is connected to a heating device B, and the second heat exchange tube 16 conducts heat of the annular heat exchange ring 5 to the heating device B.
  • the heating device B may be another cooking appliance for cooking, and is also a heating water tank, which is provided as needed.
  • the flue gas passage is provided with a vent pipe 511 that is separately connected to the outdoor, and the black smoke is mixed with the flue gas and the oil fume; the heat transfer pipe 4 is connected to the hot water storage tank 7 through a temperature-controlled smart water pump 22.
  • the temperature of the combustion chamber reaches 900 ° C, which is 200 ° C higher than the temperature of the open cooktop, and the temperature of the flue gas exiting the combustion chamber 13 reaches 600 ° C, and is exchanged by the flue gas heat exchange component 15
  • the temperature of the last exhausted flue gas is 50 degrees Celsius, which makes the heat energy utilization rate reach about 85%, which greatly improves the heat utilization rate.
  • a cover body may be further disposed, the cover body is closed at the upper end of the combustion chamber 13 and the support port 1 is blocked, and the flue gas or hot air generated by the combustion chamber 13 is forced by the bracket 16 Into the flue gas heat exchange assembly 15, the cover body is provided with a heat insulation layer, and when the cookware is not needed, the cover cover seals the support port 1 on the support port 1 and is insulated by the heat insulation layer, so that the heat is burned The heat conduction is directly achieved by the hot gas and the flue gas, and the cooker system of the present embodiment is used as a boiler.
  • a waste heat recovery energy-efficient cooktop system includes a cooker 11 including a bracket 16, a combustion chamber 13, an ignition assembly 14, and a flue gas heat exchange assembly 15, and the ignition assembly 14 includes a lower end.
  • a gas inlet pipe for gas the combustion chamber 13 is embedded on the bracket 16;
  • the ignition assembly 14 is mounted at the bottom of the combustion chamber 13, and the combustion chamber 13 is provided with an air inlet, the The tuyere cooperates with the ignition assembly 14 and is provided for supplying the oxygen supply to the ignition assembly 14.
  • the air inlet is disposed adjacent to the ignition assembly 14; the upper end of the combustion chamber 13 is provided with a ventilation hole 2, and the ventilation hole 2 is connected to the flue gas heat exchange assembly 15 for reservation.
  • the hot gas and flue gas of the combustion chamber pass into the heat exchange assembly 5;
  • a flue gas heat exchange assembly includes a casing 3 for exhausting flue gas, and a heat pipe 4 is disposed in the casing 3, and the heat pipe 4 is from the casing
  • An end of the flue gas outlet of the gas passage 3 is opened, and is exhausted from the inlet end of the flue gas inlet of the casing 3, wherein the heat transfer pipe 4 is provided with a heat-conducting medium, and the heat-conducting medium is introduced from the inlet end of the heat-conducting pipe 4, that is, from the
  • the flue gas outlet of the casing 3 is open at one end; the upper end of the combustion chamber is provided with a vent 2, and the lower end of the casing 3 is connected to the vent 2;
  • An annular heat exchange ring 5 is arranged, the annular heat exchange ring 5 is arranged around the support port 1, and the annular heat exchange ring 5 is connected to the heat transfer medium passing through the heat pipe 4, and is heated by the hot gas at the upper end of the combustion chamber. Heat exchange, further increasing the temperature of the heat transfer medium flowing out of the heat pipe 4;
  • a water tank 6 is provided, and the casing 3 is submersedly installed in the water tank 6.
  • the flue gas passage of the casing 3 extends out of the water tank 6 to discharge flue gas, thereby realizing heat exchange in the water tank 6.
  • the heat transfer medium exchanges heat with the flue gas, and the water tank 6 communicates with the annular heat exchange ring 5 to pass into the heat transfer medium.
  • the casing 3 extends out of the water tank 6 and has a flue gas outlet reserved.
  • the heat transfer pipe 4 in the casing 3 through which the flue gas flows has realized one heat exchange in the flue gas, and the casing 3 is sunk in the water tank 6 to realize the outside of the flue gas.
  • the combined heat exchange between the inside of the flue gas and the outside of the flue gas makes the heat exchange of the flue gas very sufficient.
  • the heat pipe 4 is opened from one end of the flue gas outlet of the casing, and is exhausted from one end of the flue gas port of the casing 3, and the heat transfer medium is introduced from the upper end of the heat pipe 4, that is, from the casing.
  • the flue gas outlet of the 3 is opened at one end, and is taken out from the inlet end of the flue gas outlet, and the temperature of one end of the flue gas outlet is lower than the temperature of the end of the flue gas inlet, so that the heat transfer medium is gradually heated, and then the annular heat exchange ring 5 is passed, the ring
  • the heat exchange ring 5 is located around the support port 1 at the upper end of the combustion chamber, and is the place with the highest temperature.
  • the pot and the cover body provided by the support port 1 are combined to form a closed space, and the heat is concentrated in the combustion chamber.
  • it can not be dissipated, and the heat energy is not wasted, and the heat transfer of the heat transfer medium can be effectively realized, and the heat energy can be effectively utilized.
  • the annular heat exchange ring 5 and the water tank 6 are connected through a cavity 51, and the annular heat exchange ring 5 has a high heat temperature, which improves the circulation of the heat conductive medium between the annular heat exchange ring 5 and the water tank 6, and can further The heat exchange of the annular heat exchange ring 5 is sufficiently performed.
  • the vent 2 is disposed on the annular heat exchange ring 5, and the flue gas passage 21 communicated by the vent 2 communicates with the housing 3 through the cavity 51, and the cavity 51 is effectively utilized on the one hand.
  • the space prevents the vent 2 from being exposed outside the cooker, causing accidental injury, etc.
  • the flue gas passage 21 communicating with the vent 2 can exchange heat with the heat transfer medium, so that the flue gas passage 21 communicating with the vent 2 can be used ordinary.
  • the metal material can be selected from a wide range of materials, and the high temperature resistant material can be used without being burnt by high temperature, which saves cost and is safer, and can improve heat exchange efficiency and improve heat utilization.
  • the support port 1 is formed around the annular heat exchange ring 5, and can be directly installed on the existing stove body, which has small modifications to the existing stove body and is convenient to install.
  • the heat pipe 4 is made of a coil, which can improve heat exchange efficiency.
  • the present invention is further provided with a pot, the pot is embedded and sealed on the support port, and the flue gas or hot gas generated by the combustion chamber is forced into the flue gas heat exchange assembly;
  • a cover body is also provided, the cover body is closed at the upper end of the combustion chamber and the support port 1 is blocked, and the flue gas or hot gas generated by the combustion chamber is forced into the flue gas heat exchange component with the support port.
  • the cover body is provided with a heat insulation layer, and is directly heated when hot water is needed without using a stove. This design can be extended to the heating supply to the north, thus reducing the burden of electricity.
  • the water tank 6 is connected to the hot water storage tank 7 through a temperature-controlled intelligent water pump to realize storage of thermal energy.
  • the flue gas heat exchange assembly 15 includes a casing 3, a flue gas passage communicating with the combustion chamber 13 and a heat transfer pipe 4, the flue gas passage being vertically disposed vertically in the casing 3 and vertically vertical
  • the direction is heat conduction to the heat pipe 4, and the heat conductive medium passes through the water inlet 8 of the upper end of the heat pipe 4 through the flue gas outlet of the casing 3 into the heat pipe 4, and flows through the heat pipe 4 heated by the flue gas passage from top to bottom.
  • Heating, the temperature of the heat-conducting medium is heated step by step, and after the heat exchange is completed from the position where the temperature of the upper end of the upper end of the combustion chamber is completed through the annular heat exchange ring 5, it flows into the water tank 6.
  • the heat transfer medium in this embodiment selects liquid water.
  • a pot is also provided; the pot is embedded on the bracket 16 and blocks the support port 1, and the flue gas or hot gas generated by the combustion chamber 13 is forced into the flue gas heat exchange.
  • annular heat exchange ring 5 is disposed on the bracket 16, and the annular heat exchange ring 5 is disposed around the support port 1.
  • the hollow portion of the annular heat exchange ring 5 constitutes a support port 1, and the annular heat exchange ring 5 is sealed and installed.
  • the combustion chamber 13 is embedded in the interior of the bracket 16, and it is difficult to communicate with the air except for the support port 1, the vent hole 2 and the air inlet; the annular heat exchange ring 5 faces the combustion chamber 13
  • a vent hole 2 is disposed on the side wall through which the combustion chamber 13 passes through the vent hole 7 and the cavity 51 to communicate with the flue gas passage.
  • the bracket 16 is provided with a pot bracket for supporting a pot or a cover.
  • the pot bracket includes a support port 1 and an annular heat exchange ring 5 disposed around the support port 1 for directly utilizing annular heat exchange.
  • the ring 5 serves as a support member for supporting the pot or the cover body, and the support port 1 is disposed at an upper end of the combustion chamber 13, and the annular heat exchange ring 5 is provided with a support surface for supporting the pot or the cover body 20, The pot or cover 20 is attached to the support surface and blocks the support opening 1.
  • the support surface includes an annular support surface 153 disposed on the upper surface of the annular heat exchange ring 5, and an annular slope 152 on the inner side of the annular support surface 153 for engaging the bottom of the pot body 2.
  • the annular support surface 153 may be an annular plane or an annular groove, and the annular support surface 153 or the annular slope 152 is disposed at the upper end of the vent hole 2.
  • the air inlet is provided with a blower 19, and the air blower 19 is connected to an air inlet pipe 12, and the air inlet pipe 12 is heated by the flue gas passage to the combustion chamber 13; the air inlet is provided for providing The oxygen wind is heated and exchanged by the flue gas heating unit 5.
  • the gas combustion efficiency can be improved, the energy can be saved, and the energy is not increased by heating the oxygen-enriched wind.
  • a second heat exchange tube 16 is also provided.
  • the second heat exchange tube 16 may be a heat transfer tube of a superconducting material.
  • One end of the second heat exchange tube 16 is connected to the annular heat exchange ring 5, and the other end is connected to a heating device B, and the second heat exchange tube 16 conducts heat of the annular heat exchange ring 5 to the heating device B.
  • the heating device B may be another cooking appliance for cooking, and is also a heating water tank, which is provided as needed.
  • the flue gas passage is provided with a vent pipe 511 that is separately connected to the outdoor, and the black smoke is mixed with the flue gas and the oil fume; the heat transfer pipe 4 is connected to the hot water storage tank 7 through a temperature-controlled smart water pump 22.
  • the temperature of the combustion chamber reaches 900 ° C, which is 200 ° C higher than the temperature of the open cooktop, and the temperature of the flue gas exiting the combustion chamber 13 reaches 600 ° C, and is exchanged by the flue gas heat exchange component 15
  • the temperature of the last exhausted flue gas is 50 degrees Celsius, which makes the heat energy utilization rate reach about 85%, which greatly improves the heat utilization rate.
  • a cover body may be further disposed, the cover body is closed at the upper end of the combustion chamber 13 and the support port 1 is blocked, and the flue gas or hot air generated by the combustion chamber 13 is forced by the bracket 16 Into the flue gas heat exchange assembly 15, the cover body is provided with a heat insulation layer, and when the cookware is not needed, the cover cover seals the support port 1 on the support port 1 and is insulated by the heat insulation layer, so that the heat is burned The heat conduction is directly achieved by the hot gas and the flue gas, and the cooker system of the present embodiment is used as a boiler.
  • the invention provides a cooker system which gathers the heat energy of the combustion chamber, fully utilizes the heat energy generated by the combustion combustion chamber, and realizes the heat recovery of the flue gas, is energy-efficient and suitable for practical use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

L'invention concerne un système de surface de cuisson économe en énergie, efficace et à récupération de chaleur. Une chambre de combustion (13) est montée sur un support (16) de manière intégrée. Un ensemble d'allumage (14) est monté en correspondance avec la chambre de combustion (13). La chambre de combustion (13) est munie d'une entrée d'air. L'entrée d'air, en correspondance avec l'ensemble d'allumage (14), est disposée et utilisée pour alimenter en air d'oxygénation l'ensemble d'allumage (14). Un trou de ventilation de gaz est formé dans l'extrémité supérieure de la chambre de combustion (13), en communication avec un ensemble d'échange de chaleur de gaz de combustion (15). L'ensemble d'échange de chaleur de gaz de combustion (15) comprend une enveloppe (3) permettant d'évacuer un gaz de combustion. Un tuyau de transfert de chaleur (4) est disposé dans l'enveloppe (3). Le tuyau de transfert de chaleur (4) est guidé vers l'intérieur à partir d'une sortie de gaz de combustion de l'enveloppe (3) et guidé vers l'extérieur à partir d'une entrée de gaz de combustion de l'enveloppe (3). Un agent caloporteur est disposé dans le tuyau de transfert de chaleur (4), et il est introduit à partir de l'extrémité supérieure du tuyau de transfert de chaleur (4). Un orifice d'introduction d'air (2) est formé dans l'extrémité supérieure de la chambre de combustion (13). L'extrémité inférieure de l'enveloppe (3) est en communication avec l'orifice d'introduction d'air (2) en vue d'introduire du gaz de combustion évacué de la chambre de combustion (13). Une boucle annulaire d'échange de chaleur (5) est agencée autour d'un orifice de support (1). La boucle annulaire d'échange de chaleur (5) introduit l'agent caloporteur évacué du tuyau de transfert de chaleur (4) afin d'échanger de la chaleur. L'enveloppe (3) est montée dans un réservoir d'eau (6), et le réservoir d'eau (6) est en communication avec la boucle annulaire d'échange de chaleur (5) afin d'introduire l'agent caloporteur.
PCT/CN2018/102588 2017-08-27 2018-08-27 Système de surface de cuisson économe en énergie, efficace, à récupération de chaleur WO2019042266A1 (fr)

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CN107345671A (zh) * 2017-08-27 2017-11-14 杭州超导科技有限公司 一种余热回收高效节能灶具系统
CN111023164A (zh) * 2019-12-19 2020-04-17 浙江武义陈奇厨房设备有限公司 一种具有环保功能的节能灶具

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