CN113310048A - Combustor and gas-cooker based on high combustion efficiency drainage design - Google Patents

Combustor and gas-cooker based on high combustion efficiency drainage design Download PDF

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Publication number
CN113310048A
CN113310048A CN202110596862.5A CN202110596862A CN113310048A CN 113310048 A CN113310048 A CN 113310048A CN 202110596862 A CN202110596862 A CN 202110596862A CN 113310048 A CN113310048 A CN 113310048A
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China
Prior art keywords
peripheral
holes
fire cover
wall surface
combustion efficiency
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CN202110596862.5A
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Chinese (zh)
Inventor
陈作炳
汪祥
张任飞
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Priority to CN202110596862.5A priority Critical patent/CN113310048A/en
Publication of CN113310048A publication Critical patent/CN113310048A/en
Withdrawn legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/62Mixing devices; Mixing tubes
    • F23D14/64Mixing devices; Mixing tubes with injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/70Baffles or like flow-disturbing devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/08Arrangement or mounting of burners
    • F24C3/085Arrangement or mounting of burners on ranges

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

Abstract

The invention provides a combustor and a gas stove based on high combustion efficiency drainage design, which can effectively improve the combustion efficiency. The burner includes: a gas inlet part, wherein an inlet is connected with a gas supply pipeline; the injection part is connected with the fuel gas inlet part; a central furnace end; enclose fire lid in, include: the inner wall cavity is arranged around the central furnace end and communicated with at least two side ejectors, a plurality of rows of inner wall air outlet holes are arranged on the main body area of the inner wall surface of the inner wall cavity, and a row of inner wall fine holes are arranged on the inner wall surface of the inner wall cavity and below the air outlet holes; the peripheral fire cover is arranged on the inner peripheral fire cover and is expanded upwards and peripherally to form an annular cover shell shape, the wall surface of the inner ring and the wall surface of the inner ring of the inner peripheral fire cover jointly enclose a combustion space, a row of peripheral air guide holes are formed in the wall surface of the outer ring of the peripheral fire cover, and a row of peripheral air outlet holes are formed in the wall surface of the inner ring; and the side surface flow guide unit is arranged in the peripheral fire cover and comprises a plurality of side surface flow guide frames corresponding to a row of peripheral air guide holes.

Description

Combustor and gas-cooker based on high combustion efficiency drainage design
Technical Field
The invention belongs to the field of combustion equipment, and particularly relates to a combustor and a gas stove based on high combustion efficiency drainage design.
Background
In the present day, the living standard of residents is continuously improved, and with the higher and higher utilization rate of gas cookers, the use amount of natural gas is rapidly increased and becomes one of the most important fuels of the gas cookers used in China. According to the survey, the natural gas consumption of China all over the world is ranked third, and the natural gas consumption of China in 2019 breaks through 3064 billions and cubic meters. However, the gas stoves in China have the phenomena of aging, poor effect of mixing with air during combustion and high emission.
The phenomena of poor mixing effect with air, high emission and serious pollution during combustion are greatly related to the structural defects of the traditional gas stove.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a burner and a gas range, which are designed based on a high combustion efficiency flow guide, and which can sufficiently mix gas and air during combustion, effectively improve combustion efficiency, and reduce pollutants generated due to insufficient combustion.
In order to achieve the purpose, the invention adopts the following scheme:
< burner >
The invention provides a combustor based on high combustion efficiency drainage design, which is characterized by comprising the following components: gas portion of getting into, the entry links to each other with the gas supply line, includes: a central fuel gas inlet channel and at least two lateral fuel gas inlet channels; draw the portion of penetrating, the export with gas admission portion links to each other, includes: the central ejector is connected with the outlet of the central fuel gas inlet channel, the at least two side ejectors are connected with the outlets of the at least two side fuel gas inlet channels, fuel gas inlet holes are formed in the bottoms of the central ejector and the side ejectors, multiple rows of air inlet holes are uniformly formed in the side walls of the central ejector and the side ejectors, and the aperture of each air inlet hole is more than three times that of each fuel gas inlet hole; a central burner above the central injector, andthe central ejector is communicated, and through holes are formed in the peripheral side walls; enclose fire lid in, include: the inner wall cavity is arranged around the central furnace end and communicated with at least two side ejectors, a plurality of rows of inner wall air outlet holes are arranged on the main body area of the inner wall surface of the inner wall cavity, and a row of inner wall fine holes are arranged on the inner wall surface of the inner wall cavity and below the air outlet holes; the peripheral fire cover is arranged on the inner fire cover and is expanded upwards and peripherally to form an annular housing shape, the wall surface of the inner ring and the wall surface of the inner ring of the inner fire cover jointly enclose a combustion space, a row of peripheral air guide holes for uniformly guiding external air into the housing are formed in the wall surface of the outer ring of the peripheral fire cover, and a row of peripheral air outlet holes for discharging the air guided into the housing to the combustion space are formed in the wall surface of the inner ring of the peripheral fire cover; the side surface flow guide unit is arranged in the peripheral fire cover and comprises a plurality of side surface flow guide frames corresponding to a row of peripheral air guide holes, and each side surface flow guide frame is correspondingly arranged on the inner wall of one peripheral air guide hole and extends towards the wall surface of the inner ring of the peripheral fire cover; each flow guide frame is provided with an upper frame plate, a lower frame plate, a left frame plate and a right frame plate, the upper frame plate and the lower frame plate are parallel to each other and are inclined upwards by a certain angle a along the direction from outside to inside1,a16-8 degrees, the left frame plate and the right frame plate are parallel to each other and are inclined by a certain angle a along the direction from left to right2,a2=16°~18°。
Preferably, the burner based on the high combustion efficiency flow guiding design according to the present invention may further include: the top layer fire lid, the lid is established on peripheral fire lid, includes: the top layer cover ring is erected on the peripheral fire cover, the circular cover plate is located at the center of the top layer cover ring, is positioned right above the central furnace end and is enclosed into an annular open fire area with the top layer cover ring, and the multiple rows of top layer holes and the top layer pores are formed in the top layer cover ring and the multiple partition rods are connected between the top layer cover ring and the circular cover plate and are used for uniformly partitioning the open fire area. The top cover ring can avoid the local overhigh temperature caused by the concentration of high-energy flame in the center, so that the energy can be dispersed to the open fire area and the top cover ring, the energy on the whole area of the top fire cover can be uniformly distributed as much as possible,
preferably, the burner based on the high combustion efficiency flow guiding design according to the present invention may further include: the diameter ratio of the top layer openings to the top layer pores is 1: 2 to 3.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: the gas inlet hole is not more than 1 mm.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: the cross sections of areas above and below the fuel gas inlet hole in the ejector are gradually changed into circular arcs, and the areas and the fuel gas inlet hole form an hourglass-shaped structure together.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: the ejector is of a regular N-face structure, and N is more than or equal to 6.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: the aperture of the air inlet hole is 4-5 times of that of the fuel gas inlet hole.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: the diameter ratio of the inner periphery pore and the inner periphery air outlet is 1: 2 to 3.
Preferably, in the burner based on the high combustion efficiency flow guiding design, the invention can also have the following characteristics: at least thirty peripheral air guide holes are arranged, and all the peripheral air guide holes are uniformly arranged around the wall surface of the outer ring of the peripheral fire cover.
< gas kitchen Range >
Further, the present invention also provides a gas range, comprising: the burner described in < burner > above.
The invention has the following functions and effects:
the burner and the gas stove based on the high combustion efficiency drainage design have the structure, so that gas enters the ejector part at a high flow rate through the central gas inlet channel and the side gas inlet channels and then enters the ejector part from the gas inlet hole with a small aperture, the air pressure around the ejector is reduced under the action of the central high flow rate, and external air is sucked into the ejector through the air inlet hole to carry out primary premixing; the gas and the air premixed by the central ejector enter the central furnace end, then flow out through the through hole and enter the middle part of a combustion space formed by the inner surrounding fire cover and the outer surrounding fire cover; the gas and the air premixed by the side ejector enter the inner-periphery cavity, then uniformly flow out through the inner-periphery air outlet holes and the inner-periphery fine holes, and uniformly enter the combustion space from the side surface; the premixed gas of fuel gas and air is ignited and then combusted in the combustion space, the air pressure in the combustion space is reduced to form negative pressure along with the combustion, the peripheral air guide holes formed on the peripheral fire cover automatically suck external air under the action of the negative pressure, the external air is continuously sucked into the combustion space under the guidance of the side guide unit with a special inclination angle after passing through the peripheral air guide holes, secondary mixing is carried out, and a special air mixing flow field is formed; through the special primary premixing and secondary mixing, the gas is combusted more fully, the combustion efficiency is effectively improved and can reach 90%, and the emission of harmful gas generated due to insufficient combustion is practically reduced.
Drawings
Fig. 1 is a perspective view of a burner according to an embodiment of the present invention;
FIG. 2 is an exploded view of a burner according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a combustor according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a gas inlet part, an injection part and a base according to an embodiment of the invention;
fig. 5 is a schematic structural view of an ejector according to an embodiment of the present invention, in which (a) is a perspective view and (b) is a sectional view;
FIG. 6 is a perspective view of an inner fire cover according to an embodiment of the present invention;
FIG. 7 is a perspective view of a peripheral fire cover according to an embodiment of the present invention;
FIG. 8 is a perspective view of the outer peripheral fire cover, the inner peripheral fire cover and the burner according to the embodiment of the present invention;
fig. 9 is a schematic structural view of a baffle according to an embodiment of the present invention;
fig. 10 is a schematic view of the angle of inclination of a baffle relative to a vertical rectangular parallelepiped structure according to an embodiment of the present invention;
fig. 11 is a perspective view of a top fire cover according to an embodiment of the present invention.
Detailed Description
The burner and the gas range based on the high combustion efficiency flow guiding design according to the present invention will be described in detail with reference to the accompanying drawings.
< example >
As shown in fig. 1 to 3, the burner 10 based on the high combustion efficiency flow guiding design includes a base 20, a gas inlet 30, an injection part 40, a central burner 50, an inner peripheral fire cover 60, an outer peripheral fire cover 70, a side flow guiding unit 80, and a top fire cover 90.
As shown in fig. 2 and 4, the base 20 is disc-shaped, the bottom is provided with a gas inlet 30, the upper part is provided with an injection part 40, and the base 20 is further provided with a first mounting hole 21 and a second mounting hole 22 which are respectively used for mounting a thermocouple and a pulse igniter.
The gas inlet 30 is connected to a gas supply line and comprises a central gas inlet channel 31 and two lateral gas inlet channels 32.
The injection part 40 is connected with the outlet of the gas inlet part 30 and comprises five injectors 41, wherein one injector is arranged at the most central part and is connected with the outlet of the central gas inlet channel 31 through a guide pipe, the other four injectors are arranged around the injector and are used as side injectors, and the four side injectors are divided into two groups and are correspondingly connected with the outlets of the two side gas inlet channels 32 through Laval nozzles. The center of the bottom of each ejector 41 is provided with a fuel gas inlet hole 42, the side wall of each ejector is uniformly provided with a plurality of rows of air inlet holes 43, and the aperture of each air inlet hole 43 is more than three times that of each fuel gas inlet hole 42. As shown in fig. 5, in this embodiment, the injector 41 is a regular hexahedron structure, two rows of symmetrical air inlet holes 43 are uniformly formed in the side wall, the aperture (diameter) of the fuel gas inlet hole 42 is 0.6mm, and the aperture of the air inlet hole 43 is 2.8 mm; in the injector 41, the cross sections of the regions above and below the gas inlet hole 42 are gradually changed into arc shapes, and form an hourglass-shaped structure together with the gas inlet hole 42.
As shown in fig. 2 to 3, the central burner 50 is located above the central injector 41 and is communicated with the central injector 41, and the peripheral side walls thereof are uniformly provided with through holes.
As shown in fig. 6, the inner peripheral fire cover 60 includes a support plate 61 and an inner peripheral chamber 62. A support plate 61 is mounted on the base 20 for supporting the inner chamber 62 and allowing passage of the laval nozzle. An inner chamber 62 is provided around the central burner 50 and communicates with all of the side injectors 41. In this embodiment, three rows of inner periphery air outlet holes 62a are uniformly formed in the main body region of the inner ring wall surface of the inner periphery chamber 62, each row of inner periphery air outlet holes 62a is arranged in a circle around the inner ring wall surface, and adjacent upper and lower rows of inner periphery air outlet holes 62a are arranged in a staggered manner; further, still evenly be equipped with one row of inner periphery pore 62b in the below of the inner periphery venthole 62a of three rows, this fourth row of inner periphery pore 62b also sets up with the crisscross setting of third row inner periphery pore 62a to the diameter ratio of inner periphery pore 62b and inner periphery pore 62a is 1: 2 to 3.
As shown in fig. 7 to 8, the peripheral fire cover 70 is disposed on the inner fire cover 60 and extends upward and peripherally to form an annular casing shape, a combustion space is defined by an inner wall surface of the inner fire cover 60 and an inner wall surface of the inner fire cover, a row of peripheral air guide holes 71 for uniformly guiding external air into the casing is disposed on an outer wall surface of the peripheral fire cover 70, and a row of peripheral air outlet holes 72 for discharging air guided into the casing into the combustion space is disposed on an inner wall surface of the peripheral fire cover 70. In this embodiment, the diameter of the inner ring wall surface of the peripheral fire cover 70 is larger, thirty-six peripheral air holes 71 are provided, and all the peripheral air holes 71 are uniformly arranged around the outer ring wall surface of the peripheral fire cover 70 by one turn.
As shown in fig. 2, 3 and 9, the side guide unit 80 is disposed inside the peripheral fire cover 70, and includes a row of side guide frames 81 corresponding to the row of peripheral air holes 71, and each of the side guide frames 81 is correspondingly installed on an inner wall of one of the peripheral air holes 71 and extends toward an inner circumferential wall surface of the peripheral fire cover 70. Each side guide frame 81 has four frame plates, i.e., an upper frame plate, a lower frame plate, a left frame plate and a right frame plate, as shown in fig. 9 and 10, the upper frame plate and the lower frame plate are parallel to each other and are inclined upward at a certain angle a along the direction from outside to inside1,a16-8 degrees, the left frame plate and the right frame plate are parallel to each other and are inclined by a certain angle a along the direction from left to right2,a216 ~ 18 degrees from this can reach and form the air mixing flow field with the outside air of entrainment in combustion space, make the process burning of gas burning more abundant, reduce the effect of harmful gas's emission.
As shown in fig. 1 to 3 and 11, the top fire cover 90 covers the peripheral fire cover 70, and includes a top cover ring 91, a circular cover plate 92, and four partition rods 93. A top cover ring 91 is mounted on the peripheral fire cover 70. The circular cover plate 92 is positioned right above the central furnace end 50, is positioned in the center of the top cover ring 91, has a certain distance with the center of the top cover ring 91, and forms an open fire area with an annular opening with the top cover ring 91; be provided with two rows (two circles) of top layer trompil 91a, one row (one circle) of top layer pore 91b, one row (one circle) of outer pore 91c on the top layer lid ring 91, the diameter ratio of top layer trompil 91a and top layer pore 91b is 1: 2, the outer layer pores 91c and the top layer pores 91b have the same pore diameter. Four dividing rods 93 (thin rods) are connected between the top cover ring 91 and the circular cover plate 92 to divide the annular open fire zone into four equal area sectors. In this embodiment, as shown in fig. 3, in the top fire cover 90, the cross-sectional shape of the area surrounded by the inner ring wall surface of the top cover ring 91 is inverted trapezoid, so that the combustion temperature can be better diffused and transmitted, the aperture of the area is 81mm, the aperture of the top opening 91a is 6mm, and the apertures of the top pores 91b and the outer pores 91c are both 3 mm. Based on aforementioned structure, divide into four fan-shapes with central exit region through a circular cover plate 92 and evenly distributed's subregion pole 93 all around in the biggest central inlayer of flame, the structure that fan-shaped cambered surface department upwards expands outward can spread combustion temperature smoothly and transmit away, further under top layer trompil 91a, top layer pore 91b and evenly distributed's outer pore 91 c's combined action, the export temperature distribution of burning is more even, can avoid producing the anoxic zone in the space part of outer lane in the time of the upper portion burning simultaneously, thereby further reduce the emission of pollutant.
The above is a specific structure of the burner 10 according to the present embodiment, and the operation process thereof is based on the structure:
after passing through the central gas inlet channel 31 and the side gas inlet channels 32, the gas enters the five ejectors 41 through the gas inlet holes 42 at high flow rate, the gas pressure around the ejectors 41 is reduced under the action of the central high flow rate, and the external air is sucked into the ejectors through the air inlet holes 43 to be premixed in a first stage.
The gas and air premixed by the central ejector enter the central burner 50, then flow out through the through holes, and enter the middle part of a combustion space surrounded by the inner surrounding fire cover 60 and the outer surrounding fire cover 70.
Meanwhile, the gas and air premixed by the side ejector enter the inner wall cavity 62, then uniformly flow out through the inner wall air outlet holes 62a and the inner wall fine holes 62b, and uniformly enter the combustion space from the side surface.
The premixed gas of the fuel gas and the air is ignited and then combusted in the combustion space, the air pressure in the combustion space is reduced to form negative pressure along with the combustion, the peripheral air guide holes 71 formed in the peripheral fire cover 70 automatically suck the external air under the action of the negative pressure, the external air is continuously sucked into the combustion space under the guide of the side guide unit 80 after passing through the peripheral air guide holes 71, secondary mixing is carried out, and a special air mixing flow field is formed, so that the fuel gas is more fully combusted.
Tests prove that when the burner based on the high-combustion-efficiency drainage design works, the contact flame with the bottom of a pan is blue flame, so that the full combustion is realized, and a commercially available gas stove can present bright yellow flame generated by insufficient contact of oxygen and gas (pollutants such as CO and the like are discharged under the condition of incomplete combustion of the gas); further, the burner of the present invention was compared with a commercially available gas range for heating 3L of water: the initial temperature of water is 19 ℃, the gas flow rates are all 0.65L/min, 20 '58' is used when a common gas stove heats water to 98.1 ℃, 14 '37' is used when the burner of the invention heats water to 98.5 ℃, the combustion efficiency of the common gas stove is 63 percent through calculation, and the combustion efficiency of the burner of the invention is 90 percent, which proves that the burner of the invention really realizes full combustion and greatly improves the combustion efficiency.
Further, the present embodiment also provides a gas range, which includes at least one burner 10 described above.
The above is merely an illustration of the technical solution of the present invention. The burner and gas stove based on the flow guiding design with high combustion efficiency according to the present invention are not limited to the structure described in the above embodiments, but shall be subject to the scope defined by the claims. Any modification or supplement or equivalent replacement made by the person skilled in the art on the basis of the present invention is within the scope of the claims of the present invention.

Claims (10)

1. A combustor based on a high combustion efficiency flow-inducing design, comprising:
gas portion of getting into, the entry links to each other with the gas supply line, includes: a central fuel gas inlet channel and at least two lateral fuel gas inlet channels;
draw the portion of penetrating, with the export of gas entering portion links to each other, includes: the central ejector is connected with the outlet of the central fuel gas inlet channel, the at least two side ejectors are connected with the outlets of the at least two side fuel gas inlet channels, fuel gas inlet holes are formed in the centers of the bottoms of the central ejector and the side ejectors, a plurality of rows of air inlet holes are uniformly formed in the side walls of the central ejector and the side ejectors, and the aperture of each air inlet hole is more than three times that of each fuel gas inlet hole;
the central furnace end is positioned above the central ejector and communicated with the central ejector, and through holes are formed in the peripheral side walls of the central furnace end;
enclose fire lid in, include: the inner wall cavity is arranged around the central furnace end and communicated with the at least two side ejectors, a plurality of rows of inner wall air outlet holes are formed in the main body area of the inner wall surface of the inner wall cavity, and a row of inner wall fine holes are formed in the inner wall surface of the inner wall cavity and below the air outlet holes;
the peripheral fire cover is arranged on the inner fire cover and is expanded upwards and peripherally to form an annular housing shape, the wall surface of the inner ring and the wall surface of the inner ring of the inner fire cover jointly enclose a combustion space, a row of peripheral air guide holes for uniformly guiding external air into the housing are formed in the wall surface of the outer ring of the peripheral fire cover, and a row of peripheral air outlet holes for discharging the air guided into the housing to the combustion space are formed in the wall surface of the inner ring of the peripheral fire cover;
the side surface flow guide unit is arranged in the peripheral fire cover and comprises a plurality of side surface flow guide frames corresponding to the row of peripheral air guide holes, and each side surface flow guide frame is correspondingly arranged on the inner wall of one peripheral air guide hole and extends towards the inner ring wall surface of the peripheral fire cover; each flow guide frame is provided with an upper frame plate, a lower frame plate, a left frame plate and a right frame plate, the upper frame plate and the lower frame plate are parallel to each other and are inclined upwards by a certain angle a along the direction from outside to inside1,a16-8 degrees, the left frame plate and the right frame plate are parallel to each other and are inclined by a certain angle a along the direction from left to right2,a2=16°~18°。
2. The high combustion efficiency flow-inducing design-based combustor as claimed in claim 1, further comprising:
top layer fire lid, the lid is established peripheral fire is covered and is gone up, includes: the top layer cover ring is erected on the peripheral fire cover, the circular cover plate is located in the center of the top layer cover ring, is located right above the central furnace end and is surrounded with the top layer cover ring to form an annular open fire area, multiple rows of top layer holes and top layer fine holes are formed in the top layer cover ring, and multiple partition rods are connected between the top layer cover ring and the circular cover plate and are used for enabling the open fire area to be evenly partitioned.
3. The high combustion efficiency flow-inducing design-based combustor as claimed in claim 2, wherein:
wherein, the diameter ratio of the top layer open pores and the top layer pores is 1: 2 to 3.
4. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
wherein the gas inlet hole is not more than 1 mm;
the cross sections of areas above and below the fuel gas inlet hole in the ejector are gradually changed into arc shapes, and the cross sections and the fuel gas inlet hole form an hourglass-shaped structure together.
5. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
the ejector is of a regular N-face structure, and N is more than or equal to 6.
6. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
the aperture of the air inlet hole is 4-5 times of that of the fuel gas inlet hole.
7. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
wherein, the diameter ratio of the inner periphery pore to the inner periphery air outlet is 1: 2 to 3.
8. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
at least thirty peripheral air guide holes are formed in the outer ring of the peripheral fire cover, and all the peripheral air guide holes are uniformly arranged around the wall surface of the outer ring of the peripheral fire cover.
9. The high combustion efficiency flow-inducing design based combustor as claimed in claim 1, wherein:
wherein, the diameter of the inner ring wall surface of the peripheral fire cover is larger upwards.
10. The utility model provides a gas-cooker based on high combustion efficiency drainage design which characterized in that includes:
at least one burner as set forth in any one of claims 1 to 9 designed for high combustion efficiency flow diversion.
CN202110596862.5A 2021-05-31 2021-05-31 Combustor and gas-cooker based on high combustion efficiency drainage design Withdrawn CN113310048A (en)

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CN202110596862.5A CN113310048A (en) 2021-05-31 2021-05-31 Combustor and gas-cooker based on high combustion efficiency drainage design

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Application Number Priority Date Filing Date Title
CN202110596862.5A CN113310048A (en) 2021-05-31 2021-05-31 Combustor and gas-cooker based on high combustion efficiency drainage design

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US20160327277A1 (en) * 2014-01-14 2016-11-10 Defendi Italy S.R.L. Gas burner for a cooking hob
CN108006622A (en) * 2017-06-24 2018-05-08 宁波方太厨具有限公司 A kind of burner with high efficiency
CN111878809A (en) * 2020-07-06 2020-11-03 武汉理工大学 Household gas stove based on TVC standing vortex structure
CN112361334A (en) * 2020-11-13 2021-02-12 华帝股份有限公司 Gas nozzle and combustor using same

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Publication number Priority date Publication date Assignee Title
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Application publication date: 20210827