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WO2018166066A1 - Brûleur et plaque de cuisson à gaz - Google Patents

Brûleur et plaque de cuisson à gaz Download PDF

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Publication number
WO2018166066A1
WO2018166066A1 PCT/CN2017/085218 CN2017085218W WO2018166066A1 WO 2018166066 A1 WO2018166066 A1 WO 2018166066A1 CN 2017085218 W CN2017085218 W CN 2017085218W WO 2018166066 A1 WO2018166066 A1 WO 2018166066A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
chamber
air
cavity
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/085218
Other languages
English (en)
Chinese (zh)
Inventor
赖育文
余悦泳
季俊生
黄河
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710153212.7A external-priority patent/CN106949473B/zh
Priority claimed from CN201710153994.4A external-priority patent/CN106949474B/zh
Priority claimed from CN201710153037.1A external-priority patent/CN106949466B/zh
Priority claimed from CN201710153998.2A external-priority patent/CN106907708A/zh
Application filed by Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of WO2018166066A1 publication Critical patent/WO2018166066A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • 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
    • F24C3/08—Arrangement or mounting of burners

Definitions

  • the invention relates to the field of kitchenware, in particular to a burner and a gas cooker.
  • a burner generally has a plurality of air chambers to achieve a multi-ring fire, such as a three-ring fire.
  • Each air chamber is supplied by a separate ejector tube.
  • the primary air is mixed with the gas at one end of the ejector tube to form a mixed gas and then enters the ejector tube and the air chamber.
  • this makes the intake air amount of the primary air less, resulting in insufficient air supply for one air and insufficient combustion of the gas.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the invention proposes a burner and a gas cooktop.
  • a base a gas inlet chamber is formed in the base, a gas inlet passage is disposed on the base, and the gas inlet passage is connected to the gas inlet;
  • the first gas separation structure includes a first air conduit and a first cavity, the first air conduit is connected to the first cavity, and the first cavity is spaced apart from the base
  • the first air guiding tube extends into the gas inlet chamber;
  • the second gas separation structure includes a second cavity and a third cavity, wherein the bottom surface of the second cavity is provided with a second air conduit and a third air conduit, the second guide a gas pipe and the third air pipe extend into the gas intake chamber, the second cavity is opened with a second chamber, and the second air conduit communicates with the second chamber and the gas inlet between;
  • a third cavity is disposed in the second chamber, the third cavity is open with a third chamber spaced from the second chamber, the third air conduit is connected to the third chamber and The gas intake air.
  • the structure of the three chambers can realize a three-ring fire burner.
  • the primary air replenishing passage formed between the base and the first cavity can suck more primary air into the gas intake air to ensure the primary air content in the mixed gas of the first chamber, the second chamber and the third chamber. Sufficient, the gas is burned more fully, and the burner has more firepower.
  • the first cavity includes spaced apart gas distribution trays and lands, the lands being disposed on the base and spaced from the base to form the primary air replenishing passage, A gas distribution disc is disposed on the lands and is spaced apart from the lands to form a secondary air replenishing passage, and the second cavity passes through the venting disc and is carried on the lands.
  • the primary air replenishing passages are continuously distributed along the circumference of the combustor.
  • the inlets of the secondary air replenishing passages are continuously distributed along the circumference of the combustor.
  • the middle portion of the air separation tray is provided with a square through hole, the outer side surface of the air separation tray is circular, and the second cavity penetrates the square through hole.
  • the positioning portion includes a guiding portion and a bearing portion, the guiding portion is connected to the bearing portion, and the guiding portion is used for guiding installation of the second gas separation structure
  • the guiding portion protrudes from an outer wall of the second cavity, and a height at which the guiding portion protrudes gradually increases from bottom to top
  • the bearing portion is provided with a slot that matches the shape of the flange, and the bearing portion bears against the flange through the slot.
  • the edge of the lower surface of the lands is curved toward the base to form a braided structure.
  • the lower surface edge of the gas distribution disk and the upper surface edge of the lands together form a structure that tapers in the direction of intake of the secondary air replenishing passage.
  • the first chamber is provided with two partitions, the two partitions separating the first chamber into two sub-gas chambers, the first air duct
  • the number is two, one of the sub-gas chambers communicates with the gas inlet through one of the first air ducts, and the other of the sub-gas chambers passes through the other of the first air ducts
  • the gas is connected to the air intake.
  • the second air conduit forms a first opening in a bottom surface of the second chamber, and the third air conduit is formed at a bottom surface of the second chamber to be spaced apart from the first opening Second opening;
  • a bottom surface of the third chamber is provided with a vent hole communicating with the third chamber, and the vent hole is in communication with the second opening;
  • the bottom surface of the third cavity is spaced above the first opening and is provided with a barrier wall separating the first opening and the second opening.
  • the retaining wall is annular and projects away from the third cavity, the venting aperture extending through the retaining wall.
  • the bottom surface of the second chamber is provided with a groove, the groove surrounds the second opening, and the groove and the retaining wall are cooperatively connected to separate the first An opening and the second opening.
  • the hole wall of the vent hole includes a flow guiding surface
  • the vent hole is provided with a shielding piece, and the shielding piece and the flow guiding surface are relatively spaced apart from each other and are common to the guiding surface
  • a flow guiding channel for guiding gas into the third chamber is formed.
  • the flow guiding channel has a tapered shape along an intake direction of the intake port.
  • the flow guiding surface is curved
  • the shielding piece comprises a top surface, a bottom surface and a connecting surface
  • the top surface and the bottom surface are flat
  • the connecting surface is connected to the top surface and The bottom surface
  • the connecting surface is curved and forms the flow guiding channel with the guiding surface.
  • the bottom surface of the third chamber and the top surface of the shutter are in the same plane.
  • the shielding piece includes a shielding piece connecting portion connected to the hole wall of the vent hole, and the shielding piece connecting portion is provided with a plurality of through holes, the plurality of through holes communicating with the a vent and the third chamber.
  • the third cavity further includes a fixing portion that connects the shielding piece and the bottom surface of the third chamber.
  • a gas cooker according to an embodiment of the present invention includes the burner according to any of the above embodiments.
  • the structure of the three chambers can realize a three-ring fire gas cooker.
  • the primary air replenishing passage formed between the base and the first cavity can suck more primary air into the gas intake air to ensure the primary air content in the mixed gas of the first chamber, the second chamber and the third chamber. Sufficient to make the gas combustion more fully, the gas stove has more firepower.
  • FIG. 1 is a schematic perspective view of a burner according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a burner of an embodiment of the present invention.
  • FIG. 3 is a perspective exploded view of a burner according to an embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of a burner according to an embodiment of the present invention.
  • Fig. 5 is a perspective view showing the base of the burner of the embodiment of the present invention.
  • Fig. 6 is a schematic perspective view of a first gas separation structure according to an embodiment of the present invention.
  • Fig. 7 is a side view showing the first gas separation structure of the embodiment of the present invention.
  • FIG 8 is a perspective view of a second gas separation structure according to an embodiment of the present invention.
  • Figure 9 is a side elevational view of a second gas separation structure in accordance with an embodiment of the present invention.
  • Fig. 10 is a schematic cross-sectional view showing a second gas separation structure according to an embodiment of the present invention.
  • Figure 11 is a perspective view of a second cavity of an embodiment of the present invention.
  • Figure 12 is a perspective view of a third cavity in accordance with an embodiment of the present invention.
  • Figure 13 is a schematic cross-sectional view of a third cavity in accordance with an embodiment of the present invention.
  • a burner 100 includes a base 10, a first gas separation structure 20, and a second gas separation structure 40.
  • a gas intake chamber 12 is formed in the base 10.
  • a gas intake passage 14 is provided on the base 10. The gas intake passage 14 is connected to the gas intake chamber 12.
  • the first gas separation structure 20 includes a first air conduit 22 and a first cavity 24.
  • the first air duct 22 is connected to the first cavity 24.
  • the first cavities 24 are spaced apart from the base 10 to form a primary air replenishing passage 30.
  • the primary air replenishing passage 30 communicates with the gas intake port 12.
  • the first cavity 24 is open with a first chamber 242.
  • the first air duct 22 communicates with the first chamber 242 and the gas intake chamber 12.
  • the first air duct 22 extends into the gas intake chamber 12.
  • the second gas separation structure 40 includes a second cavity 42 and a third cavity 44.
  • the bottom surface of the second cavity 42 A second air guiding tube 422 and a third air guiding tube 424 are disposed at intervals, and the second air guiding tube 422 and the third air guiding tube 424 extend into the gas intake chamber 12.
  • the second chamber 42 is open with a second chamber 426.
  • the second air conduit 422 communicates with the second chamber 426 and the gas inlet chamber 12.
  • the third cavity 44 is disposed in the second chamber 426.
  • the third cavity 44 is open with a third chamber 442 spaced from the second chamber 426.
  • the third air duct 424 communicates with the third chamber 442 and the gas intake chamber 12.
  • the structure of the three chambers can realize the burner 100 of the three-ring fire.
  • the primary air replenishing passage 30 formed between the base 10 and the first cavity 24 can draw more primary air into the gas intake chamber 12, ensuring mixing of the first chamber 242, the second chamber 426, and the third chamber 442.
  • the amount of primary air in the gas is sufficient to make the combustion of the gas more complete and the firepower of the burner 100 is greater.
  • the outer side surface 16 of the base 10 has a circular shape
  • the gas intake space 12 disposed on the base 10 has a square shape.
  • the inner structure of the outer circumference of the base 10 causes the pressure of the injected gas to be greater, and further air is introduced into the gas intake chamber 12 through the primary air replenishing passage 30, so that the combustion of the gas is more complete, and the combustion of the gas is improved. s efficiency.
  • the first chamber 242 in the embodiment of the present invention corresponds to the outer ring gas chamber of the combustor 100, and the first chamber 242 is provided with an outer ring fire cover 248; the second chamber 426 is equivalent to the middle ring gas chamber. In the chamber, the second chamber 426 is provided with a middle ring fire cover 428; the third chamber 442 is equivalent to the inner ring gas chamber, and the third chamber 442 is provided with an inner ring fire cover 446.
  • the inner ring fire cover 446 disposed on the third chamber 442 is a porous ceramic plate.
  • the gas is burned on the porous ceramic plate, the porous ceramic plate is turned red, and the infrared cooking is formed, thereby realizing the functions of extremely small fire, charcoal fire and slow stewing.
  • the gas is burned at the middle ring fire cover 428 on the second chamber 426 to form a blue central ring flame, thereby subtly realizing the red-blue combined combustion flame, improving combustion performance and heating efficiency.
  • the base 10 is provided with a liquid pan 60.
  • the base 10 and the wetted pan 60 are spaced apart to form a primary air replenishing passage 30.
  • the liquid pan 60 enters the receiving portion of the primary air replenishing passage 30 as air, so that the air flows more smoothly.
  • the liquid pan 60 can also hold the soup overflowing during the use of the burner 100, avoiding the broth flowing into the interior of the burner 100, keeping the burner 100 clean, and the liquid pan 60 can achieve a clean effect. The trouble of the user cleaning the burner 100 is reduced.
  • the wetted pan 60 mates with the projections 18 on the upper surface of the base 10 and is mounted tightly on the base 10.
  • the upper surface of the wetted tray 60 is lower than the top end of the projection 18.
  • the projections 18 prevent the overflowing soup from flowing back into the interior of the burner 100 along the wet pan 60, further ensuring cleaning of the burner 100.
  • liquid pan 60 covers the base 10.
  • the nozzle of the first air guiding tube 22 forms a plurality of cutouts 222.
  • the first air duct 22 extends into the gas intake chamber 12 and the first air duct 22 is located below the primary air replenishing passage 30.
  • the plurality of slits 222 can increase the path of air entering the first air duct 22, so that the air and the gas are sufficiently mixed to improve the efficiency of gas combustion.
  • the slit 222 has a smooth arc shape.
  • the speed at which air enters the first air duct 22 is increased to facilitate introduction of air into the first air duct 22.
  • the number of the slits 222 on each of the first air tubes 22 is four.
  • the number of the slits 222 is not limited to the embodiment discussed above, and a different number of slits 222 may be provided according to the diameter of the first air duct 22 to ensure that the air enters the first air duct 22 more rapidly.
  • the inner wall of the third chamber 442 is provided with a stepped mounting portion 4423.
  • the mounting portion 4423 is for mounting the inner ring fire cover 446.
  • the inner ring fire cover 446 can be more stably installed on the combustor 100 without lateral and downward displacement so that the gas in the combustor 100 forms a stable flame at the inner ring fire cover 446.
  • the stepped mounting portion 4423 can prevent the gas in the burner 100 from leaking from the gap between the mounting portion 4423 and the third cavity 44, thereby affecting the heating effect.
  • the gas inlet passage 14 is disposed at the bottom of the base 10 in a cross shape, and the gas inlet passage 14 includes a plurality of air outlets 142, and each of the air outlets 142 is provided with a nozzle 144, and each nozzle 144 corresponds to An air tube.
  • the gas inlet passage 14 provided with a plurality of gas outlets 142 optimizes the vent line to enhance the gas intake performance of the gas. Some gas inlet passages 14 can also be blocked according to different situations, the intake air amount of the gas can be adjusted, the waste of gas can be reduced, and energy can be saved.
  • the nozzle 144 accelerates the velocity of the gas entering the gas inlet 12, thereby making the combustion of the gas more stable. In the embodiment of the present invention, the number of the nozzles 144 is four.
  • the number of the first air guiding tubes 22 is two
  • the number of the nozzles 144 is four
  • each of the nozzles 144 corresponds to one air guiding tube, that is, the first air guiding tube 22 corresponds to two nozzles 144.
  • the second air guiding tube 422 corresponds to one nozzle 144
  • the third air guiding tube 424 corresponds to one nozzle 144.
  • the first cavity 24 includes a spaced apart gas distribution disk 244 and a lands 246 disposed on the base 10 and spaced from the base 10 to form a primary air replenishing passage 30, the gas distribution plate 244 being disposed A secondary air replenishing passage 50 is formed on the lands 246 and spaced apart from the lands 246.
  • the second cavities 42 pass through the venting discs 244 and are carried on the lands 246.
  • the primary air replenishing passage 30 and the secondary air replenishing passage 50 adopt a split layer structure, so that the primary air replenishing passage 30 and the secondary air replenishing passage 50 are designed to have a large size without affecting each other, and the combustor 100 can be burned in the gas.
  • the combustion of the gas is more complete, and the safety hazard and environmental pollution caused by the incomplete combustion of the gas are avoided.
  • the dispensing disc 244 and the lands 246 are each circular, and the orthographic projection of the dispensing disc 244 on the lands 246 is located on the lands 246.
  • the soup 100 overflowing during use of the burner 100 flows out along the connection plate 246, and does not enter. Inside the burner 100, the trouble of the user cleaning the burner 100 is reduced, and the spilled soup is prevented from entering the rust burner 100 inside the burner 100, reducing the life of the burner 100.
  • the air separation tray 244 and the lands 246 are connected by a connecting portion 241.
  • the number of the connecting portions 241 is plural, and the plurality of connecting portions 241 are spaced apart.
  • connection between the air separation tray 244 and the lands 246 is more stable, and when the burner 100 encounters a slight collision or drop, the air separation tray 244 and the lands 246 are not separated, ensuring the service life of the burner 100.
  • the two first air guiding tubes 22 are provided with two connecting portions 241 therein.
  • the primary air replenishing passages 30 are continuously distributed along the circumference of the combustor 100.
  • the primary air replenishing passages 30 are continuously distributed along the circumferential direction of the combustor 100 such that the gas intake air passages 12 are not blocked in all directions, and the air in each orientation of the combustor 100 can enter the gas intake passages through the primary air replenishing passages. .
  • the inlets of the secondary air replenishing passages 50 are continuously distributed along the circumference of the combustor 100.
  • the central portion of the air separation tray 244 is provided with a square through hole 2442, the outer side surface 2444 of the air separation tray 244 is circular, and the second cavity 42 is formed with a square through hole 2442.
  • the air distribution plate 244 has a structure inside the outer circle, so that after the second cavity 42 is installed into the square through hole 2442, a large gap is formed between the second cavity 42 and the square through hole 2442 for the second space.
  • the air supplemented by the gas replenishing passage 50 enters, replenishes the air for the gas, and improves the combustion efficiency of the gas.
  • the second cavity 42 is circular
  • other shapes of holes such as circular holes (not shown), may be formed in the middle of the air separation disk 244.
  • the diameter of the circular aperture is greater than the diameter of the second cavity 42.
  • the outer wall of the second cavity 42 is provided with a positioning portion 423.
  • the edge of the square through hole 2442 is formed with a flange 24422, and the positioning portion 423 is mated with the flange 24422 to detachably position the second gas separation structure 40 in the square through hole 2442.
  • the positioning portion 423 includes a guiding portion 4232 and a bearing portion 4234.
  • the guiding portion 4232 is connected to the bearing portion 4234.
  • the guiding portion 4232 is used for guiding the installation of the second air separation structure 40.
  • the portion 4232 protrudes from the outer wall of the second cavity 42, and the height at which the guiding portion 4232 protrudes gradually increases from bottom to top.
  • the bearing portion 4234 is provided with a slot that matches the shape of the flange 24422, and the bearing portion 4234 bears against the flange 24422 through the slot.
  • each of the two sides of the second cavity 42 is provided with two positioning portions 423 spaced apart. As such, the installation of the second gas separation structure 40 is relatively stable, avoiding displacement of the second gas separation structure 40 in the burner 100.
  • the upper surface of the base 10 is provided with a protrusion 18, and the protrusion 18 and the lower surface of the lands 246 are spaced apart.
  • the air is prevented from entering the combustor 100 from the primary air replenishing passage 30, and the gas in the gas intake chamber 12 is prevented from leaking from the primary air replenishing passage 30.
  • the edge of the lower surface of the land 246 is curved toward the base 10 to form a braided structure 2462.
  • the braided structure 2462 can further prevent gas leakage in the gas intake chamber 12, thereby ensuring the safety of the burner 100.
  • the overflowing soup can flow along the braid 2602 to the outside of the burner 100, ensuring the cleaning of the burner 100.
  • the lower surface edge of the air separation tray 244 and the upper surface side of the lands 246 collectively form a structure that tapers in the direction of intake of the secondary air replenishing passage 50.
  • the inlet of the secondary air replenishing passage 50 forms a structure that tapers in the direction of the airflow, and is more likely to enter the air, further enhancing the air replenishment and improving the efficiency of gas combustion.
  • two partitions 2422 are disposed in the first chamber 242, and the two partitions 2422 divide the first chamber 242 into two sub-gas chambers 2424, the number of the first air ducts 22 being Two of the sub-gas chambers 2424 communicate with the gas inlet 12 through one of the first air tubes 22, and the other sub-gas chamber 2424 communicates with the gas inlet 12 through the other first air tube 22.
  • the gas distribution within the two sub-gas chambers 2424 is more uniform as compared to the first chamber 242 as a whole, thereby allowing the gas to burn more evenly at the outer ring fire cover 248 disposed on the first chamber 242.
  • each of the sub-gas chambers 2424 is provided with a first chamber intake port 2426, and the chamber intake port 2426 is located at an intermediate position of the sub-gas chamber 2424.
  • each sub-gas chamber 2424 is substantially 180 degrees arcuate, and the chamber intake aperture 2426 is located 90 degrees within the sub-gas chamber 2424. As such, each sub-gas chamber 2424 causes the gas to reach a more evenly distributed state within the first chamber 242.
  • the partition 2422 does not completely block the two sub-gas chambers 2424, and the two sub-gas chambers 2424 still have a small area of communication at the partition 2422 as compared to the no-part 2422.
  • the partition 2422 is a right angle trapezoid.
  • the top end of the partition member 2422 and the beveled edge and the outer ring fire cover 248 are spaced apart.
  • both the purpose of spacing the first chamber 242 is achieved such that the gas distribution within the first chamber 242 is more uniform and the two sub-gas chambers 2424 are not completely separated.
  • outer side of the outer ring fire cover 248 is provided with a fire hole. In some embodiments, outside The outer side and the inner side of the ring fire cover 248 are provided with fire holes.
  • the second air duct 422 forms a first opening 4262 on the bottom surface of the second chamber 426, and the third air duct 424 is formed on the bottom surface of the second chamber 426. a second opening 4264 spaced apart by an opening 4262;
  • the bottom surface 4421 of the third chamber 442 is provided with a vent hole 4422 communicating with the third chamber 442, and the vent hole 4422 is in communication with the second opening 4264;
  • the bottom surface of the third cavity 44 is spaced above the first opening 4262 and is provided with a barrier wall 444 separating the first opening 4262 and the second opening 4264.
  • the gas emitted from the second air guide tube 422 is dispersed by the bottom surface of the third cavity 44 to the respective positions of the second chamber 426 and then diffused upward.
  • the second cavity 42 is more uniformly supplied to the respective positions of the second chamber 426, ensuring that the flame formed by the second cavity 42 is uniform.
  • the retaining wall 444 can prevent the supply of air from the second chamber 426 and the third chamber 442 from affecting each other.
  • the second cavity 42 and the third cavity 44 are substantially cylindrical.
  • the structure is simple and easy to manufacture. At the same time, it facilitates the flow of gas into the second chamber 426 and the third chamber 442 more smoothly, ensuring the flow rate of the gas, thereby ensuring the gas in the middle ring fire cover 428 and the third chamber 442 on the second chamber 426.
  • the side wall of the third cavity 44 is provided with a receiving portion 443 for making the third cavity 44 more stable when the third cavity 44 is mounted.
  • the second cavity 42 and the third cavity 44 can be made of copper.
  • the second cavity 42 and the third cavity 44 can withstand high temperatures and prolong the service life of the burner 100.
  • the second cavity 42 and the third cavity 44 are easily cast and formed, and the first opening 4262, the second opening 4264, and the vent hole 4422 are formed to achieve better gas separation.
  • the retaining wall 444 is annular and projects away from the third cavity 44, and the vent 4422 extends through the retaining wall 444.
  • the length of the vent 4422 is increased such that more gas can be collected into the third chamber 442, ensuring the amount of gas supplied to the third chamber 442.
  • the distance that the retaining wall 444 protrudes from the bottom surface of the third cavity 44 can be adjusted with the size of the third chamber 442 to optimize the air supply amount and gas velocity of the third chamber 442.
  • the bottom surface of the second chamber 426 is provided with a recess 4266.
  • the recess 4266 surrounds the second opening 4264.
  • the recess 4266 and the retaining wall 444 are cooperatively connected to separate.
  • connection between the second cavity 42 and the third cavity 44 is tight, the first opening 4262 and the second opening 4264 are completely blocked, and the gas separation performance of the burner 100 is greatly improved, thereby avoiding the high temperature environment of the burner 100.
  • the connection is not tight and the gas separation performance of the burner 100 is affected.
  • the retaining wall 444 is inserted into the recess 4266.
  • the retaining wall 444 is thermally expanded, so that the combination of the retaining wall 444 and the recess 4266 is more tight, and the gas is preferably prevented from being in the second chamber 426 and the third chamber 442.
  • the circulation occurs to ensure the gas separation effect of the burner 100.
  • the vent wall of the vent 4422 includes a flow guiding surface 4424.
  • the venting hole 4422 is provided with a shielding piece 4426.
  • the shielding piece 4426 and the guiding surface 4424 are relatively spaced apart and formed together with the guiding surface 4424 for The pilot gas enters the flow channel 4428 of the third chamber 442.
  • the gas enters the third chamber 442 along the flow path 4428, greatly increasing the gas flow rate and fluency of the gas entering the third chamber 442, making the combustion of the gas outside the burner 100 more stable.
  • the mixed gas formed by the gas and the air is sprayed toward the shielding piece 4426 to form a gas flow, the shielding piece 4426 turns the direction of the mixed gas to the guiding flow channel 4428, and the mixed gas enters the third chamber through the guiding channel 4428.
  • the shielding piece 4426 turns the direction of the mixed gas to the guiding flow channel 4428, and the mixed gas enters the third chamber through the guiding channel 4428.
  • the flow guiding channel 4428 has a tapered shape along the direction of intake of the vent 4422.
  • the gas is more smoothly passed through the flow guiding passage 4428 into the third chamber 442, and the flow rate of the gas is also increased to ensure that the combustion of the gas at the inner ring fire cover 446 is more stable.
  • the flow guiding surface 4424 is curved, and the shielding sheet 4426 includes a top surface 44262.
  • the bottom surface 44264 and the connecting surface 44266, the top surface 44262 and the bottom surface 44264 are planar, and the connecting surface 44266 is coupled to the top surface 44262 and the bottom surface 44264.
  • the connecting surface 44266 is curved and forms a flow guiding channel 4428 with the flow guiding surface 4424.
  • the curved flow surface 4424 reduces the resistance to gas and thereby achieves a faster rate.
  • the curved flow guiding surface 4424 makes the gas flow more stable, avoiding the formation of turbulence or turbulence after the gas enters the third chamber 442, and the situation affecting the combustion stability of the gas occurs.
  • the junction of the flow guiding surface 4424 and the bottom surface 4421 of the third chamber 442 is a rounded curved surface.
  • flow guiding surface 4424 may also be provided as a slope.
  • the acute angle formed by the flow guiding surface 4424 and the bottom surface 4421 of the third chamber 442 is 45 degrees.
  • the rate at which gas enters the third chamber 442 can be further optimized.
  • the curved connecting surface 44266 causes the gas to impinge on the bottom of the bottom surface of the third cavity 44, and is directly steered, reducing the velocity loss of the gas.
  • the connecting surface 44266 cooperates with the flow guiding surface 4424 to form a flow guiding passage 4428 for the gas to smoothly enter the third chamber 442.
  • the distance between the connecting surface 44266 and the flow guiding surface 4424 is 0.5 cm - 1.5 cm.
  • the gas passes through the deflecting passage 4426 after being deflected and dispersed through the deflecting passage 4428, the gas is squeezed and the flow rate is increased due to the narrowing of the airflow passage.
  • the gas creates a negative pressure below the flow guiding channel 4428, drawing more gas into the guiding channel 4428, further increasing the flow rate of the gas.
  • the bottom surface 4421 of the third chamber 442 and the top surface 44262 of the shutter 4426 are in the same plane.
  • the gas flows smoothly and rapidly after the gas enters the third chamber 442 from the vent hole 4422.
  • the phenomenon of turbulence after the gas enters the third chamber 442 when the top surface 44262 and the bottom surface 4421 of the third chamber 442 are not in the same plane is avoided, and the combustion is stabilized after the gas is injected from the third chamber 442.
  • the same plane refers to the same horizontal plane.
  • the shielding piece 4426 includes a shielding piece connecting portion 44268 connected to the hole wall of the vent hole 4422, and the shielding piece connecting portion 44268 is provided with a plurality of through holes 44261, and the plurality of through holes 44261 communicate with the vent hole 4422 and The third chamber 442.
  • the shielding piece 4426 When the shielding piece 4426 is turned to the gas, a small portion of the gas is turned to the direction of the shielding piece connecting portion 44268, and the opening through hole 44261 can introduce the part of the gas into the third chamber 442, thereby avoiding gas loss and increasing the number of The amount of gas supplied to the three chambers 442.
  • the number of the through holes 44261 is not limited to the number of the embodiments discussed above, but may be adjusted according to the magnitude of the gas flow rate and the size of the third chamber 442 to achieve a better gas separation effect.
  • the third cavity 44 further includes a fixing portion 448 that connects the shielding piece 4426 and the bottom surface 4421 of the third chamber 442.
  • the fixing portion 448 further reinforces the shielding piece 4426, ensuring that the shielding piece 4426 is stably disposed on the third cavity 44, and is not easily deformed, thereby achieving a better gas separation effect and improving the reliability of the burner 100.
  • the third cavity 44 is removably mounted in the second chamber 426.
  • the third cavity 44 passes through the barrier 444 and the second chamber 426
  • the groove 4266 on the bottom surface is fitted to be mounted in the second cavity 42.
  • the positioning hole 421 can be formed on the bottom surface of the second cavity 426 by providing the positioning member 441 on the third cavity 44, and the positioning hole 421 is passed through the positioning member 441. The engagement with the locating aperture 421 mounts the second cavity 42 into the third cavity 44.
  • the third cavity 44 can be stably installed in the second cavity 42.
  • the relative slippage between the second cavity 42 and the third cavity 44 is less likely to occur, thereby ensuring the gas separation performance of the burner 100.
  • the mounting and dismounting of the third cavity 44 is also facilitated.
  • gas is input from the gas inlet passage 14 and injected into the gas inlet chamber 12 through a nozzle 144 disposed on the gas inlet passage 14, and the injected gas is
  • the gas inlet chamber 12 generates a negative pressure to draw the primary air A from the primary air replenishing passage 30.
  • the primary air and the gas are premixed between the gas inlets 12 to form a mixed gas.
  • a portion of the mixed gas enters the first chamber 242 via the first air guiding tube 22, and as shown by A1, is sprayed outward through the outer ring fire cover 248 to form an outer ring fire.
  • the gas mixture in the gas inlet chamber 12 and another portion of the air mixture (shown as line A2 in FIG. 4) are guided through the second air conduit 422 and the third air conduit 424 into the second chamber 426 and the first
  • the three chambers 442 and the mixed gas of the second chamber 426 are sprayed outward through the middle ring fire cover 428 to form a middle ring fire.
  • the flow direction of the mixed gas entering the second chamber 426 can be indicated by a broken line A21.
  • the mixed gas in the third chamber 442 is injected outward through the inner ring fire cover 446, and is burned to form an inner ring fire of infrared rays.
  • the flow direction of the mixed gas entering the third chamber 442 can be indicated by a broken line A22.
  • the secondary air replenishing passage 50 can supplement the secondary air to the combustion of the gas in the middle ring fire cover 428 and the inner ring fire cover 446, and/or replenish the secondary air when the gas inside the outer ring fire cover 248 is burned, and the secondary air passes through the second
  • the secondary air replenishing passage 50 enters the inside of the combustor 100 and flows upward, thereby achieving supplemental secondary air.
  • the flow direction of the secondary air entering the burner 100 is indicated by a broken line B with an arrow in the figure.
  • the burner 100 passes through the first air conduit 22, the second air conduit 422, and the third air conduit At 424 gas separation, a three-ring fire burner 100 is realized, which improves the heating efficiency of the burner 100.
  • a gas cooker according to an embodiment of the present invention includes the combustor 100 of any of the above embodiments.
  • the structure of the three chambers can realize a three-ring fire gas cooker.
  • the primary air replenishing passage 30 formed between the base 10 and the first cavity 24 can draw more primary air into the gas intake chamber 12, ensuring mixing of the first chamber 242, the second chamber 426, and the third chamber 442.
  • the content of primary air in the gas is sufficient to make the gas combustion more fully, and the firepower of the gas cooker is greater.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be the first feature Immediately above or obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature.
  • the first feature "below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

L'invention concerne un brûleur (100) et une plaque de cuisson à gaz, et dans le brûleur (100), un canal d'admission de gaz (14) est en communication avec une chambre d'admission de gaz (12) d'une base (10) ; un premier tube de guidage de gaz (22) est raccordé à une première cavité (24) ; la première cavité (24) est espacée de la base (10) pour former un canal de supplément d'air primaire (30) ; le canal de supplément d'air primaire (30) est en communication avec la chambre d'admission de gaz (12), et le premier tube de guidage de gaz (22) est en communication avec une première chambre (242) et la chambre d'admission de gaz (12) ; le premier tube de guidage de gaz (22) s'étend dans la chambre d'admission de gaz (12) ; la surface inférieure d'une deuxième cavité (42) est dotée d'un deuxième tube de guidage de gaz (422) et d'un troisième tube de guidage de gaz (424) espacés l'un de l'autre ; le deuxième tube de guidage de gaz (422) et le troisième tube de guidage de gaz (424) s'étendent dans la chambre d'admission de gaz (12) ; le deuxième tube de guidage de gaz (422) est en communication avec une deuxième chambre (426) et la chambre d'admission de gaz (12) ; une troisième cavité (44) est disposé dans la deuxième chambre (426) ; et le troisième tube de guidage de gaz (424) est en communication avec une troisième chambre (442) et la chambre d'admission de gaz (12).
PCT/CN2017/085218 2017-03-15 2017-05-19 Brûleur et plaque de cuisson à gaz Ceased WO2018166066A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201710153212.7A CN106949473B (zh) 2017-03-15 2017-03-15 分气结构、燃烧器和燃气灶具
CN201710153037.1 2017-03-15
CN201710153998.2 2017-03-15
CN201710153212.7 2017-03-15
CN201710153994.4A CN106949474B (zh) 2017-03-15 2017-03-15 分气结构和燃烧器
CN201710153994.4 2017-03-15
CN201710153037.1A CN106949466B (zh) 2017-03-15 2017-03-15 燃烧器和燃气灶具
CN201710153998.2A CN106907708A (zh) 2017-03-15 2017-03-15 燃烧器和燃气灶具

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WO2018166066A1 true WO2018166066A1 (fr) 2018-09-20

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PCT/CN2017/085215 Ceased WO2018166064A1 (fr) 2017-03-15 2017-05-19 Structure de distribution de gaz et brûleur
PCT/CN2017/085218 Ceased WO2018166066A1 (fr) 2017-03-15 2017-05-19 Brûleur et plaque de cuisson à gaz
PCT/CN2017/085217 Ceased WO2018166065A1 (fr) 2017-03-15 2017-05-19 Structure de distribution de gaz, brûleur et plaque de cuisson à gaz
PCT/CN2017/085219 Ceased WO2018166067A1 (fr) 2017-03-15 2017-05-19 Brûleur et plaque de cuisson au gaz

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PCT/CN2017/085219 Ceased WO2018166067A1 (fr) 2017-03-15 2017-05-19 Brûleur et plaque de cuisson au gaz

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CN113757662B (zh) * 2020-06-04 2025-02-07 宁波方太厨具有限公司 一种上进风燃烧器以及应用有该上进风燃烧器的灶具

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