CN111998342B - Fire cover and combustor using same - Google Patents
Fire cover and combustor using same Download PDFInfo
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- CN111998342B CN111998342B CN202010762983.8A CN202010762983A CN111998342B CN 111998342 B CN111998342 B CN 111998342B CN 202010762983 A CN202010762983 A CN 202010762983A CN 111998342 B CN111998342 B CN 111998342B
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- fire
- hole
- ignition
- fire cover
- annular wall
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- 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, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- 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
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
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- 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, e.g. noise reduction means
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- 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, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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- 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
- F24C3/085—Arrangement or mounting of burners on ranges
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Abstract
The invention relates to a fire cover which comprises a top cover and a ring wall extending downwards along the circumferential direction of the top cover, wherein a fire hole is formed in the ring wall, a main fire hole is formed in the ring wall corresponding to an ignition needle, and the diameter of the inner end of the main fire hole in the radial direction is smaller than that of the outer end of the main fire hole in the radial direction. This fire lid can exert better steady flame effect when igniteing, has promoted the success rate of igniteing greatly. The invention also relates to a burner which comprises a base, an injection pipe, an ignition needle and a thermocouple, wherein the base is provided with an outer ring gas mixing chamber and an inner ring gas mixing chamber which are respectively communicated with the injection pipe, an outer ring fire cover is arranged on the outer ring gas mixing chamber in a matching way, the ignition needle and the thermocouple are both arranged on the periphery of the inner ring gas mixing chamber close to the inner ring gas mixing chamber, an inner ring fire cover is arranged on the inner ring gas mixing chamber in a matching way, and the inner ring fire cover is adopted. The burner has higher ignition success rate, higher working reliability and stability and effectively prolonged corresponding service life.
Description
Technical Field
The invention relates to a fire cover capable of preventing blockage and stabilizing flame, and also relates to a combustor using the fire cover.
Background
The fire hole block is a main fault problem of a burner of a stove, the fire hole block can affect ignition, fire protection, flame stabilization and the like, and the fire hole of the inner ring is more easily blocked compared with the fire hole of the outer ring. In addition, current cooking utensils are generally all igniteing and keeping healthy in the inner ring, and the thermocouple and the ignition needle are generally all arranged in the inner ring, for example when chinese utility model patent "a high-efficient combustor" that the publication number is CN206958908U (application number is 201720744712.3) is this kind of structure, the combustor of this structure when the fire hole is plugged up to the inner ring, can influence on the one hand and ignite and keep healthy, on the other hand hot water greasy dirt drips and still can damage thermocouple and ignition needle on one hand, influences life. The existing fire cover structure design of the ignition part and the fire protection part is simple, basically, an ignition hole or a fire protection hole is designed in a targeted mode, and the success rate of ignition and fire protection is low due to the fact that the fire hole is blocked or the fire hole is away from flames and the like.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a fire cover capable of improving the success rate of ignition in view of the above prior art.
The second technical problem to be solved by the present invention is to provide a fire lid with improved anti-blocking performance in view of the above prior art.
A third technical problem to be solved by the present invention is to provide a burner with good performance and long service life in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a fire lid, includes top cap and the rampart of following top cap circumference downwardly extending, be provided with fire hole, its characterized in that on the rampart: and a main ignition hole is arranged on the annular wall corresponding to the position of the ignition needle, and the aperture of the radial inner end of the main ignition hole is smaller than that of the radial outer end.
In order to prolong the length of the main ignition hole and improve the speed reduction effect on the airflow in the main ignition hole, a component extends radially inwards on the inner wall surface of the annular wall at a position corresponding to the main ignition hole, and the main ignition hole extends inwards in the component and penetrates through the component.
In order to further reduce the air velocity in the main ignition hole and improve the flame stabilizing effect for the main ignition hole, a flame stabilizing groove is arranged on the outer side surface of the annular wall at least corresponding to the position of the main ignition hole, and the flame stabilizing groove is communicated with the main ignition hole.
Preferably, the fire holes comprise a plurality of upper fire holes which are distributed and arranged at the upper part of the ring wall along the circumferential direction and a plurality of lower fire holes which are distributed and arranged at the lower part of the ring wall along the circumferential direction;
the flame stabilizing grooves are circumferentially arranged on the outer side surface of the annular wall and located between the upper fire holes and the lower fire holes, and the flame stabilizing grooves are communicated with the upper fire holes.
In order to better guide the air flow output from the flame stabilizing groove to the ignition position of the main ignition hole and realize the flame stabilizing effect on the main ignition hole, the flame stabilizing groove gradually inclines downwards along the radial direction from inside to outside, and the lower ignition hole gradually inclines upwards along the radial direction from inside to outside.
In order to improve the ignition success rate, auxiliary ignition holes are respectively arranged on the two sides of the main ignition hole on the annular wall.
In order to further exert the flame stabilizing effect in the ignition process, ignition grooves are arranged above the distribution positions of the main ignition holes and the auxiliary ignition holes on the annular wall, and the ignition grooves penetrate through the annular wall along the radial direction.
The technical scheme adopted by the invention for solving the second technical problem is as follows: and the outer wall surface of the annular wall is concavely provided with a vertically extending groove corresponding to the position of each auxiliary ignition hole.
Preferably, the diameter of the top cover is larger than that of the annular wall, and a covering part capable of covering the ignition needle is arranged on the top cover in an outward expanding mode; the middle part of the upper surface of the top cover is provided with a liquid containing area lower than the edge.
In order to avoid overflowing the liquid flow passage on the cliff, the edge of top cap has along circumference downwardly extending and keeps off the eaves.
In order to enable overflow liquid on the blocking eaves to flow downwards from the position far away from the fire hole and avoid blocking the fire hole as much as possible, the lower surface of the blocking eaves gradually inclines downwards along the radial direction towards the outer end of the covering part.
In order to prevent the ignition needle from being polluted by excessive overflowing liquid, notches are arranged at the positions of two sides of the lower surface of the shielding eave part corresponding to the position close to the outermost end of the shielding part.
In order to avoid overflow liquid from falling on the thermocouple, the top cover is provided with a protective cap capable of covering the thermocouple in an outward expansion mode, and a concave area which is concave upwards is arranged on the lower surface of the protective cap and corresponds to the position above the thermocouple.
In order to effectively realize the diversion of overflowing liquid and avoid excessive accumulation on the upper surface of the top cover, the edge of the top cover is provided with an overflowing liquid port communicated with the liquid containing area, and the top cover is inclined downwards from inside to outside along the radial direction corresponding to the upper surface of the overflowing liquid port.
In order to reduce the possibility of blocking the fire holes, the lower surface of the baffle eaves corresponding to the overflow port area is gradually inclined downwards from two sides to the middle.
In order to avoid the influence of overflow flowing down on other fire holes, the two sides of the outer wall surface of the annular wall corresponding to the overflow port area are respectively provided with a convex block in a protruding mode, and the outer surface of each convex block gradually inclines outwards along the radial direction from top to bottom.
In order to exert a better flame stabilizing effect, the upper part of the annular wall is provided with a main flame stabilizing hole corresponding to the position of the overflow port, and the aperture of the radial inner end of the main flame stabilizing hole is smaller than that of the radial outer end.
Preferably, a positioning column capable of being clamped on the combustion seat extends radially inwards at a position corresponding to the main flame stabilizing hole on the inner wall surface of the annular wall, and the main flame stabilizing hole extends inwards towards the positioning column and penetrates through the positioning column.
In order to improve the flame stabilizing effect, auxiliary flame stabilizing holes are respectively arranged on the two sides of the main flame stabilizing hole on the annular wall.
The technical scheme adopted by the invention for solving the third technical problem is as follows: the utility model provides a combustor, includes the base, draws and penetrates pipe, ignition needle and thermocouple, the base has respectively with draw the outer loop that penetrates the pipe and mix the gas chamber with the inner ring, the outer loop mixes and matches on the gas chamber and is provided with outer loop fire lid, ignition needle, thermocouple all are close to the inner ring and mix the gas chamber and set up the periphery that mixes the gas chamber at the inner ring, its characterized in that: an inner ring fire cover is arranged on the inner ring gas mixing chamber in a matching mode, and the inner ring fire cover adopts the fire cover.
Compared with the prior art, the invention has the advantages that: according to the fire cover, the main ignition hole is set to be the hole with the inner end smaller in aperture and the outer end larger in aperture, and when the fire cover works, airflow enters the hole section with the large aperture through the hole section with the small aperture, and the airflow can be buffered and decelerated due to sudden increase of the interception area, so that a better flame stabilizing effect can be achieved during ignition, and the success rate of ignition is greatly improved.
The burner with the fire cover has the advantages of higher ignition success rate, higher working reliability and stability and longer service life.
Drawings
Fig. 1 is a perspective view of a burner in an embodiment of the present invention.
FIG. 2 is a perspective view of a fire lid in an embodiment of the present invention.
FIG. 3 is a bottom perspective view of the fire cover in an embodiment of the present invention.
FIG. 4 is a cross-sectional view of a fire lid in an embodiment of the present invention.
Fig. 5 is a cross-sectional view of another cross-section of a fire lid in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The fire cover in this embodiment can be applied to various burners, and the fire cover and the burner using the fire cover are described in detail in this embodiment by taking the burner as an example.
As shown in fig. 1, the burner in this embodiment includes a base 100, an injection pipe 200, an ignition needle tube 300, and a thermocouple 400, where the base 100 has an outer ring air mixing chamber and an inner ring air mixing chamber respectively communicated with the injection pipe 200, an outer ring fire cover 500 is disposed on the outer ring air mixing chamber in a matching manner, the ignition needle tube 300 and the thermocouple 400 are both disposed on the periphery of the inner ring air mixing chamber near the inner ring air mixing chamber, an inner ring fire cover 600 is disposed on the inner ring air mixing chamber in a matching manner, and the inner ring fire cover 600 is a fire cover as described below. For the installation of the convenient interior fire lid, be formed with the step face on the up end of the interior ring base 100 body that forms the interior ring gas mixing chamber usually for interior ring fire lid 600 matches the assembly, fix a position interior ring fire lid 600 when convenient installation simultaneously, so that the ignition hole on the interior ring fire lid 600 is corresponding with the position of ignition needle tubing 300, be provided with the constant head tank on the interior ring base 100 body, correspondingly set up on interior ring fire lid 600 and can match the reference column 23 that blocks out to this constant head tank in, so can guarantee the accurate installation of interior ring fire lid 600, guarantee to ignite.
As shown in fig. 2 to 5, the fire cover in the present embodiment includes a top cover 1 and a circular wall 2 extending downward along a circumferential direction of the top cover 1, fire holes are provided on the circular wall 2, and the fire holes in the present embodiment include a plurality of upper fire holes 5 distributed and provided on an upper portion of the circular wall 2 along the circumferential direction and a plurality of lower fire holes 6 distributed and provided on a lower portion of the circular wall 2 along the circumferential direction. Wherein, the upper fire hole 5 can be horizontally arranged according to the requirement, and the lower fire hole 6 is usually arranged along the radial direction from inside to outside in an upward inclined way, so that the output airflow is sprayed upwards, and the combustion effect is further ensured. In addition, the aperture of the lower fire hole 6 is smaller than that of the upper fire hole 5 in the embodiment, and the lower fire hole 6 and the upper fire hole 5 are alternately arranged in the circumferential direction.
The ignition needle tubes 300 and the thermocouples 400 are circumferentially spaced apart from each other on the outside of the annular wall 2 of the inner annular cap 600. The annular wall 2 is provided with a main ignition hole 3 at a position corresponding to the ignition needle tube 300, and in this embodiment, a member 21 extends radially inward from the inner wall surface of the annular wall 2 at a position corresponding to the main ignition hole 3, and the main ignition hole 3 extends into the member 21 and penetrates through the member 21. In the embodiment, the main ignition hole 3 extends horizontally in the radial direction, and accordingly the member 21 extends horizontally in the radial direction, the member 21 can effectively increase the length of the main ignition hole 3. And the diameter of the radially inner end of the main ignition hole 3 is smaller than that of the radially outer end. So when the ignition, the air current that enters into in the inner ring gas mixing chamber can enter into main ignition hole 3, and the air current has owing to the damming area grow can have the buffering deceleration effect to the air current when entering into the big aperture section from the aperture section of main ignition hole 3, and component 21 can strengthen this effect again to the extension of main ignition hole 3 length, so can improve the reliability and the stability of the ignition of main ignition hole 3.
In addition, the outer side surface of the annular wall 2 is at least provided with a flame stabilizing groove 4 corresponding to the main ignition hole 3, the flame stabilizing groove 4 is communicated with the main ignition hole 3, and the flame stabilizing groove 4 is specifically communicated with the large-aperture section of the main ignition hole 3. In the embodiment, the flame holding groove 4 is circumferentially arranged on the outer side surface of the annular wall 2 and is positioned between the upper fire hole 5 and the lower fire hole 6, and the flame holding groove 4 is communicated with each upper fire hole 5. The flame stabilizing grooves 4 are gradually inclined downwards from inside to outside along the radial direction, and the lower fire holes 6 are gradually inclined upwards from inside to outside along the radial direction. During the ignition, after the air current entered into the big aperture section, still can shunt partly air current and enter into in the flame stabilizing groove 4, further reduce the air velocity in the main ignition hole 3, the air current of shunting in the flame stabilizing groove 4 simultaneously can draw close to main ignition hole 3 under the effect of the air current of 6 department's output of lower fire hole again, and then play the effect of stabilizing the flame on the main ignition hole 3, the success rate of igniteing has been improved greatly, the reliability and the stability of the ignition of main ignition hole 3 are improved. After the ignition is successful, the flame stabilizing grooves 4 can also exert the flame stabilizing effect on each fire hole.
In addition, during this cap assembly, it can circumferential direction's clearance to reserve usually, in order to avoid during this cap assembly, the skew position of ignition needle tube 300 of its main ignition hole 3, in this embodiment, be provided with supplementary ignition hole 7 respectively in the both sides of main ignition hole 3 on rampart 2, the hole center of this supplementary ignition hole 7 and the hole center of post ignition hole are on same height, so can effectively guarantee to have the air current and pass through ignition needle tube 300, and then realize effectively igniteing, improve the success rate of igniteing.
In order to further exert the flame stabilizing effect in the ignition process, the ignition groove 8 is arranged above the distribution positions of the main ignition hole 3 and the auxiliary ignition hole 7 on the annular wall 2, and the ignition groove 8 penetrates through the annular wall 2 along the radial direction, namely in the ignition process, when ignition flame is generated, the airflow output by the ignition groove 8 can effectively exert the flame stabilizing effect, so that the flame in the main ignition hole 3 and the auxiliary ignition hole 7 is stabilized, and the successful ignition is ensured.
As can be seen from the above, the fire cover has excellent ignition success rate, and in the working process, the flame is stable, and the condition of flame leaving can be effectively avoided. In addition, the fire cover also has the following structural content, so that the anti-blocking effect of the fire cover is realized.
The outer wall surface of the annular wall 2 is concavely provided with a vertically extending groove 9 corresponding to each auxiliary ignition hole 7, and the groove 9 is positioned between the flame stabilizing groove 4 and the ignition groove 8. This recess 9's setting for the part protrusion that lies in this supplementary ignition hole 7 top on the rampart 2 outside recess 9, and then form sheltering from supplementary ignition hole 7 from the top, and add the additional effect of ignition groove 8, kept apart being connected between rampart 2 surface on ignition groove 8 upper portion and recess 9, can effectively avoid overflow stream to stop up supplementary ignition hole 7 in this supplementary ignition hole 7, so can further guarantee the success rate of igniteing on effectively realizing supplementary ignition hole 7 and preventing stifled basis.
The diameter of top cap 1 in this embodiment is greater than the diameter of rampart 2, and then makes the edge of top cap 1 effectively realize the protection to various fire holes on the rampart 2, ignition groove 8 and flame holding groove 4, prevents preliminarily that the overflow on the runner top cap 1 from flowing down and blockking up the condition of fire hole, ignition groove 8 and flame holding groove 4.
In addition, the top cover 1 is extended with a covering part 13 capable of covering the ignition needle tube 300, and the top cover 1 is extended with a protective cap 14 capable of covering the thermocouple 400. This prevents the ignition needle 300 and thermocouple 400 from being contaminated by the flash.
The middle part of top cap 1 upper surface has the flourishing liquid district 11 that is less than the edge, can process this flourishing liquid district 11 through the mode that sets up the chamfer, and the edge of top cap 1 upper surface has the part of relative broad and inclines gradually from inside to outside according to the chamfer of settlement, and then forms the flange at the upper surface edge of top cap 1. The surface level setting of flourishing liquid zone 11 in this embodiment, during the use, the hot water that drops on top cap 1 upper surface can be as far as possible inward flow in the flourishing liquid zone 11 region of fire lid top, reduces the probability that hot water flows down.
In addition, in order to further avoid the overflow of the liquid flow path on the annular wall 2, the edge of the top cover 1 extends downwards along the circumferential direction to form a blocking brim 12. The height difference between the bottom of the fire stopping eaves 12 and the lower surface of the top cover 1 ensures that the overflow cannot be turned up to flow onto the annular wall 2 of the fire cover after flowing to the bottom of the fire stopping eaves 12, thereby improving the anti-blocking effect of the fire cover.
In order to make the spilled liquid on the eaves 12 flow down from the position far away from the fire hole and avoid blocking the fire hole as much as possible, the lower surface of the eaves 12 in this embodiment is inclined downwards gradually along the radial direction toward the outer end of the cover 13. The lower surface of the blocking eave 12 forms a flow guide surface, and soup dropping to the blocking eave 12 flows along the lower surface of the blocking eave 12 to the position farthest away from the fire hole. And in order to prevent to keep off eaves 12 flowing overflow too much and pollute ignition needle tube 300, be equipped with breach 121 in the both sides position department of the lower surface that keeps off eaves 12 part that is close to the correspondence of cover 13 extreme position, this breach 121 can be along the area being beaten when processing fire hole 5, these two breachs 121 can be held back to the overflow that flows, can make partial overflow flow down through these two breachs 121, the overflow volume of reposition of redundant personnel straight flow to cover 13 outer end, so effectively avoid the pollution to ignition needle tube 300, guarantee the combustor and normally ignite.
In this embodiment, the lower surface of the protective cap 14 is provided with a concave region 141 which is concave upwards at a position corresponding to the upper side of the thermocouple 400, that is, the concave region 141 is respectively downward inclined outwards at a position corresponding to the upper side of the thermocouple 400, and when the overflowing liquid enters the position, the overflowing liquid can be separated from the position above the thermocouple 400 under the flow guiding effect of the concave region 141, so that the possibility of pollution to the thermocouple 400 is further effectively reduced.
In order to effectively realize the diversion of the overflowing liquid and avoid excessive accumulation on the upper surface of the top cover 1, the edge of the top cover 1 is provided with an overflowing liquid port 15 communicated with the liquid containing area 11, and the top cover 1 is inclined downwards from inside to outside along the radial direction on the upper surface corresponding to the overflowing liquid port 15. In order to reduce the possibility of blocking the fire holes, the lower surface of the area of the baffle edge 12 corresponding to the overflow port 15 is gradually inclined downwards from two sides to the middle, namely, the overflow is concentrated to the middle position with the inclination downwards and flows out.
In order to avoid the influence of the overflow flow on other fire holes, two sides of the outer wall surface of the annular wall 2 corresponding to the area of the overflow port 15 are respectively provided with a convex block 22 in a protruding way, the convex blocks 22 are arranged at the position below the outlet of the flame stabilizing groove 4, and the outer surfaces of the two convex blocks 22 are gradually inclined outwards along the radial direction from top to bottom. When in use, even though the overflow flowing down from the overflow port 15 falls onto the annular wall 2, the overflow can be effectively limited between the two bumps 22, so that the overflow is prevented from spreading to the fire holes outside the two bumps 22, and the overflow can not flow down rapidly under the diversion action of the outer surfaces of the bumps 22, thereby avoiding further polluting the flame stabilizing groove 4.
In order to effectively ensure the flame stabilizing effect at the overflow port 15, the upper part of the annular wall 2 corresponding to the overflow port 15 is provided with a main flame stabilizing hole 10, and the diameter of the radial inner end of the main flame stabilizing hole 10 is smaller than that of the radial outer end. The position corresponding to the main flame stabilizing hole 10 on the inner wall surface of the annular wall 2 extends inwards along the radial direction to form a positioning column 23 which can be clamped on the combustion seat, and the main flame stabilizing hole 10 extends towards the inside of the positioning column 23 and penetrates through the positioning column 23. In order to improve the flame stabilizing effect, the annular wall 2 is provided with auxiliary flame stabilizing holes 101 on two sides of the main flame stabilizing hole 10. Wherein, the main flame stabilizing hole 10 and the auxiliary flame stabilizing hole 101 are both arranged above the upper flame hole 5, and the overflow liquid can be effectively prevented from blocking the main flame stabilizing hole 10 and the auxiliary flame under the action of the baffle eaves 12 correspondingly arranged at the overflow liquid port 15. The working principle of the main flame stabilizing hole 10 and the auxiliary flame stabilizing hole 101 is the same as that of the main ignition hole 3 and the auxiliary ignition hole 7, and the main flame stabilizing hole 10 and the auxiliary flame stabilizing hole 101 can effectively stabilize flame at the overflow port 15, so that the probability of flame separation at the overflow port 15 is reduced.
The burner that covers and use this burner of fire of above structure has outstanding steady flame, prevents stifled effect, and the success rate of igniteing is also high, has promoted the stability and the reliability of the working property of burner, and corresponding life also can effectively prolong.
Claims (16)
1. The utility model provides a fire lid, includes top cap (1) and along top cap (1) circumference downwardly extending's rampart (2), be provided with fire hole, its characterized in that on rampart (2): a main ignition hole (3) is formed in the annular wall (2) corresponding to the position of the ignition needle tube (300), and the diameter of the radial inner end of the main ignition hole (3) is smaller than that of the radial outer end; the diameter of the top cover (1) is larger than that of the annular wall (2), and a covering part (13) capable of covering the ignition needle tube (300) is arranged on the top cover (1) in an outward expanding mode; the middle part of the upper surface of the top cover (1) is provided with a liquid containing area (11) lower than the edge;
the edge of top cap (1) has along circumference downwardly extending and keeps off eaves (12), the lower surface that keeps off eaves (12) is along the direction downward sloping gradually of radial direction to covering portion (13) outer end, is equipped with breach (121) in the both sides position department of being close to the lower surface that covers portion (13) the corresponding fender eaves (12) part of extreme position.
2. The fire cover of claim 1, wherein: a member (21) extends radially inwards at a position corresponding to the main ignition hole (3) on the inner wall surface of the annular wall (2), and the main ignition hole (3) extends inwards in the member (21) and penetrates through the member (21).
3. The fire cover of claim 1, wherein: the outer side surface of the annular wall (2) is at least provided with a flame stabilizing groove (4) corresponding to the position of the main ignition hole (3), and the flame stabilizing groove (4) is communicated with the main ignition hole (3).
4. The fire cover of claim 3, wherein: the fire holes comprise a plurality of upper fire holes (5) which are distributed and arranged at the upper part of the ring wall (2) along the circumferential direction and a plurality of lower fire holes (6) which are distributed and arranged at the lower part of the ring wall (2) along the circumferential direction;
flame stabilizing grooves (4) are circumferentially arranged on the outer side surface of the annular wall (2) and located between the upper fire holes (5) and the lower fire holes (6), and the flame stabilizing grooves (4) are communicated with the upper fire holes (5).
5. The fire cover of claim 4, wherein: the flame stabilizing grooves (4) are gradually inclined downwards from inside to outside along the radial direction, and the lower fire holes (6) are gradually inclined upwards from inside to outside along the radial direction.
6. A fire cover according to any one of claims 1 to 5, wherein: auxiliary ignition holes (7) are respectively arranged on the two sides of the main ignition hole (3) on the annular wall (2).
7. The fire cover of claim 6, wherein: ignition grooves (8) are formed in the annular wall (2) above the distribution positions of the main ignition holes (3) and the auxiliary ignition holes (7), and the ignition grooves (8) penetrate through the annular wall (2) in the radial direction.
8. The fire cover of claim 7, wherein: and the outer wall surface of the annular wall (2) is concavely provided with a vertically extending groove (9) corresponding to each auxiliary ignition hole (7).
9. A fire cover according to any one of claims 1 to 5, wherein: the top cover (1) is provided with a protective cap (14) capable of covering the thermocouple (400) in an outward expansion mode, and a concave area (141) which is concave upwards is arranged on the lower surface of the protective cap (14) corresponding to the position above the thermocouple (400).
10. A fire cover according to any one of claims 1 to 5, wherein: the edge of the top cover (1) is provided with an overflow port (15) communicated with the liquid containing area (11), and the upper surface of the top cover (1) corresponding to the overflow port (15) is inclined downwards from inside to outside along the radial direction.
11. The fire cover of claim 10, wherein: the lower surface of the area of the liquid blocking eaves (12) corresponding to the overflow port (15) is gradually inclined downwards from two sides to the middle.
12. The fire cover of claim 11, wherein: the two sides of the outer wall surface of the annular wall (2) corresponding to the area of the overflow port (15) are respectively provided with a convex block (22) in a protruding mode, and the outer surface of each convex block (22) is gradually inclined outwards along the radial direction from top to bottom.
13. The fire cover of claim 10, wherein: the upper part of the annular wall (2) is provided with a main flame stabilizing hole (10) corresponding to the position of the overflow port (15), and the aperture of the radial inner end of the main flame stabilizing hole (10) is smaller than that of the radial outer end.
14. The fire cover of claim 13, wherein: the inner wall surface of the annular wall (2) is provided with a positioning column (23) which can be clamped on the combustion seat and extends inwards along the radial direction corresponding to the position of the main flame stabilizing hole (10), and the main flame stabilizing hole (10) extends inwards towards the positioning column (23) and penetrates through the positioning column (23).
15. The fire cover of claim 14, wherein: and auxiliary flame stabilizing holes (101) are respectively arranged on the two sides of the main flame stabilizing hole (10) on the annular wall (2).
16. The utility model provides a combustor, includes base (100), draws and penetrates pipe (200), ignition needle (300) and thermocouple (400), base (100) have respectively with draw outer loop that penetrates pipe (200) and mix the gas chamber with the inner ring, the outer loop mixes and matches on the gas chamber and be provided with outer loop fire lid (500), ignition needle (300), thermocouple (400) all are close to the inner ring and mix the gas chamber and set up the periphery that mixes the gas chamber at the inner ring, its characterized in that: an inner ring fire cover (600) is arranged on the inner ring gas mixing chamber in a matching mode, and the fire cover of any one of claims 1 to 15 is adopted as the inner ring fire cover (600).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762983.8A CN111998342B (en) | 2020-07-31 | 2020-07-31 | Fire cover and combustor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762983.8A CN111998342B (en) | 2020-07-31 | 2020-07-31 | Fire cover and combustor using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111998342A CN111998342A (en) | 2020-11-27 |
| CN111998342B true CN111998342B (en) | 2022-04-19 |
Family
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Family Applications (1)
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| CN202010762983.8A Active CN111998342B (en) | 2020-07-31 | 2020-07-31 | Fire cover and combustor using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112856426A (en) * | 2021-01-08 | 2021-05-28 | 宁波方太厨具有限公司 | Fire cover for gas cooker and gas cooker |
| CN112762451B (en) * | 2021-01-08 | 2022-03-22 | 宁波方太厨具有限公司 | Fire cover for gas cooker and gas cooker |
| CN112856491B (en) * | 2021-01-15 | 2022-08-19 | 宁波方太厨具有限公司 | Dry burning preventing burner and dry burning preventing stove comprising same |
| CN112728536A (en) * | 2021-01-25 | 2021-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Fire cover, combustor and gas-cooker |
| CN116857680B (en) * | 2023-07-19 | 2024-04-26 | 浙江意米特电器有限公司 | Gas stove, burner and ignition device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2447606A1 (en) * | 2010-11-01 | 2012-05-02 | Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. | Hybrid burner for domestic cooking devices |
| CN205860019U (en) * | 2016-07-18 | 2017-01-04 | 广东美的厨房电器制造有限公司 | The fire cover of burner and burner and gas kitchen ranges |
| CN206958915U (en) * | 2017-06-14 | 2018-02-02 | 宁波方太厨具有限公司 | A kind of interior ring fire cover of gas burner |
| CN110220194A (en) * | 2019-05-28 | 2019-09-10 | 宁波方太厨具有限公司 | Fire cover for kitchen range |
| CN209484605U (en) * | 2018-12-05 | 2019-10-11 | 中山市上宁燃气用具有限公司 | A kind of burner endogenous fire cap assemblies |
| CN210398914U (en) * | 2018-06-03 | 2020-04-24 | 宁波方太厨具有限公司 | Burner fire cover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900080B (en) * | 2014-03-06 | 2016-11-02 | 宁波方太厨具有限公司 | A kind of gas stove burner of internal ring flame stabilization |
| CN110440246A (en) * | 2018-05-04 | 2019-11-12 | 宁波方太厨具有限公司 | A kind of anti-blocking gas burner of automatically cleaning |
-
2020
- 2020-07-31 CN CN202010762983.8A patent/CN111998342B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2447606A1 (en) * | 2010-11-01 | 2012-05-02 | Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. | Hybrid burner for domestic cooking devices |
| CN205860019U (en) * | 2016-07-18 | 2017-01-04 | 广东美的厨房电器制造有限公司 | The fire cover of burner and burner and gas kitchen ranges |
| CN206958915U (en) * | 2017-06-14 | 2018-02-02 | 宁波方太厨具有限公司 | A kind of interior ring fire cover of gas burner |
| CN210398914U (en) * | 2018-06-03 | 2020-04-24 | 宁波方太厨具有限公司 | Burner fire cover |
| CN209484605U (en) * | 2018-12-05 | 2019-10-11 | 中山市上宁燃气用具有限公司 | A kind of burner endogenous fire cap assemblies |
| CN110220194A (en) * | 2019-05-28 | 2019-09-10 | 宁波方太厨具有限公司 | Fire cover for kitchen range |
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| CN111998342A (en) | 2020-11-27 |
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