CN112856411B - Injection structure and combustor comprising same - Google Patents
Injection structure and combustor comprising same Download PDFInfo
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- CN112856411B CN112856411B CN202110033113.1A CN202110033113A CN112856411B CN 112856411 B CN112856411 B CN 112856411B CN 202110033113 A CN202110033113 A CN 202110033113A CN 112856411 B CN112856411 B CN 112856411B
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- Prior art keywords
- injection
- gas
- gas mixing
- pipe
- mixing chamber
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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
- F23D14/02—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
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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
- F23D14/60—Devices for simultaneous control of gas and combustion air
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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
- 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
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Abstract
The invention discloses an injection structure and a burner comprising the same, wherein the injection structure comprises a gas mixing chamber, a gas mixing channel, an injection pipe and an adjusting sheet, and an outlet of the gas mixing channel is communicated with the gas mixing chamber; the outlet of the injection pipe is communicated to the gas mixing channel; the adjusting sheet extends into the injection pipe, and can move in the injection pipe, so that the radial conduction area of the injection pipe is adjusted. The injection structure and the burner comprising the injection structure are characterized in that the adjusting sheet is arranged in the injection pipe, the radial conduction area of the injection pipe is adjusted in a mode that the adjusting sheet moves in the injection pipe, and then the injection capacity of the injection pipe is adjusted, so that the injection capacity of the burner can be matched with the load at any time, and the best combustion working condition is achieved.
Description
Technical Field
The invention relates to an injection structure and a combustor comprising the same.
Background
One of the key factors influencing the combustion performance of the atmospheric burner is the primary air coefficient, and the primary air coefficient is closely related to the injection capacity of the burner. Generally speaking, the stronger the injection capacity is, the larger the primary air coefficient is, the better the combustion condition of the combustor is, and therefore the design of the injection structure is particularly important.
The existing stove products generally adopt a fixed-size nozzle and a fixed-size single injection pipe, which are designed according to the full-load operation of the stove. However, when the user actually uses the cooker, the cooker may not always be in a full-load operation state, such as cooking soup with soft fire. Under the condition of low load, if the ejector pipe designed under the condition of full load is adopted, the ejector capacity of the combustor is very weak, and the combustion working condition is not the best.
Disclosure of Invention
The invention aims to overcome the defects of weak injection capability and poor combustion condition of a combustor under low load in the prior art, and provides an injection structure and the combustor comprising the same.
The invention solves the technical problems through the following technical scheme:
the invention provides an injection structure which comprises a gas mixing chamber, a gas mixing channel, an injection pipe and an adjusting sheet, wherein an outlet of the gas mixing channel is communicated with the gas mixing chamber; the outlet of the injection pipe is communicated to the gas mixing channel; the adjusting sheet extends into the injection pipe, and can move in the injection pipe, so that the radial conduction area of the injection pipe is adjusted.
In this technical scheme, draw intraductal the adjustment sheet that sets up of penetrating, through the mode that the adjustment sheet removed in drawing penetrating the pipe, adjust and draw the radial area that switches on of penetrating the pipe, and then adjust and draw penetrating the ability of penetrating the pipe.
Preferably, the number of the injection pipes is a plurality, and the number of the adjusting pieces is smaller than or equal to the number of the injection pipes.
In the technical scheme, a plurality of ejector pipes are arranged, and adjusting pieces are arranged in a plurality of ejector pipes or all ejector pipes, so that multi-stage adjustment can be realized according to different load requirements; compared with a single injection pipe, the multi-injection pipe has larger adjusting range and higher flexibility.
Preferably, draw and penetrate the structure still include and divide the gas seat, divide the gas seat to be located draw the below of penetrating the pipe, be equipped with the gas outlet on dividing the gas seat, the gas outlet with draw penetrating the setting of penetrating the entry correspondence of penetrating the pipe.
In this technical scheme, divide the gas holder to be used for carrying the gas to the gas export of different positions, the gas export is carried the gas again and is penetrated the injection entry of pipe to drawing.
Preferably, draw and penetrate the structure and still include the nozzle, install on the gas outlet the nozzle, the nozzle face draw and penetrate the entrance setting of penetrating of pipe.
In the technical scheme, after the injection of the nozzle, the gas sprayed by the nozzle drives the ambient air to enter the injection pipe to form mixed gas flow.
Preferably, the gas distribution base comprises a base and a gas distribution pipe, and a gas inlet cavity is formed in the base; the gas inlet cavity is communicated with the inlet of the gas distribution pipe, and the outlet of the gas distribution pipe is the gas outlet.
In the technical scheme, fuel gas enters the injection pipe after passing through the gas inlet cavity and the gas distribution pipe; when the number of the ejection pipes is multiple, the number of the corresponding gas distribution pipes and the number of the corresponding nozzles are the same as the number of the ejection pipes; the gas distributing pipe, the nozzle and the injection pipe are arranged in one-to-one correspondence. Meanwhile, the number of the air inlet cavities communicated with the air distribution pipes is the same as that of the injection pipes, each air distribution pipe is communicated with one air inlet cavity, and each air inlet cavity is an independent cavity.
Preferably, the peripheral surface of the injection pipe is provided with an insertion groove communicated to the injection pipe; the outer surface of the adjusting sheet comprises two parallel sliding surfaces and a ring peripheral surface positioned between the two sliding surfaces, an inward concave adjusting concave hole is formed on the ring peripheral surface, and the extending direction of the adjusting concave hole is arranged in parallel to the sliding surfaces;
the injection structure further comprises a supporting rod, the supporting rod is provided with a supporting end, the supporting end is inserted into the adjusting concave hole, the outer peripheral surface of the supporting end is matched with the inner peripheral surface of the adjusting concave hole, and the adjusting sheet can move on the supporting end along the extending direction of the adjusting concave hole;
the supporting end and the adjusting sheet are inserted into the insertion groove, the shape of the adjusting sheet is matched with that of the insertion groove, and the shape of the circumferential surface of the adjusting sheet is matched with that of the inner circumferential surface of the injection pipe.
In this technical scheme, through above-mentioned structural setting, two sliding surface of adjustment sheet contact with the insertion groove, and the regulation shrinkage pool of adjustment sheet contacts with supporting the end, and the adjustment sheet can be held at the support and moved, makes the adjustment sheet stretch into and draws the intraductal area of ejector and produce the change.
Preferably, draw and penetrate the structure and still include and divide the gas seat, divide the gas seat to be located draw and penetrate the below of pipe, the bracing piece is fixed divide the gas seat on.
In this technical scheme, through fixing the bracing piece on dividing the gas seat, make and draw and penetrate structure overall structure compactness.
Preferably, the ejector pipe with the outlet closest to the gas mixing chamber is not provided with the adjusting sheet.
In the technical scheme, when the ejection capacity is adjusted, the ejection pipe far away from the gas mixing chamber is preferentially closed, the ejection pipe close to the gas mixing chamber is kept in an open state, and the energy required by the flowing of mixed airflow can be saved.
Preferably, draw the pipe to include loudspeaker section and changeover portion, the one end of loudspeaker section is draw the injection entry of penetrating the pipe, the diameter of loudspeaker section reduces along the direction of keeping away from the entry gradually, the changeover portion connect in the one end that the entry was kept away from to the loudspeaker section, the adjustment sheet set up in the changeover portion.
In this technical scheme, set up the adjustment sheet in the changeover portion of loudspeaker section rear, make the adjustment sheet more effective to drawing the regulation of penetrating the ability of penetrating the pipe.
Preferably, the number of the ejection pipes is a plurality, the gas mixing passage is a spiral passage, the spiral passage is located below the gas mixing chamber, the spiral passage spirally rises, and the outlets of the ejection pipes are sequentially arranged along the extending direction of the spiral passage.
In the technical scheme, when the gas mixing channel is a spiral channel, the outlets of the plurality of injection pipes are sequentially arranged along the extension direction of the spiral channel, so that one injection pipe is arranged at a certain distance of the spiral channel, and the flowing performance of the mixed gas flow in the spiral channel is always kept at a higher level.
The invention also provides a burner, which comprises an outer injection structure and an inner injection structure, wherein the outer injection structure and the inner injection structure are the injection structures in the technical scheme, the gas mixing chamber of the outer injection structure is an outer gas mixing chamber, and the gas mixing chamber of the inner injection structure is an inner gas mixing chamber; the gas mixing channel of the outer injection structure is an outer gas mixing channel, and the gas mixing channel of the inner injection structure is an inner gas mixing channel; the outer air mixing chamber surrounds the inner air mixing chamber, and the outer air mixing channel surrounds the inner air mixing channel.
In this technical scheme, through the aforesaid setting, make outer gas mixing chamber can correspond outer ring fire lid setting, interior gas mixing chamber can correspond inner ring fire lid setting, makes outer leading penetrating structure encircle the setting of interior leading penetrating structure, draws the relative position between structure, the interior penetrating structure outward compacter.
Preferably, the outlet of the outer gas mixing channel is provided with a plurality of outlets, and the outlets of the outer gas mixing channel are arranged around the inner circumferential surface of the outer gas mixing chamber.
In this technical scheme, the setting of the export of above-mentioned outer air mixing passageway makes outer air mixing passageway extend to between outer air mixing chamber and the interior air mixing chamber from the below of interior air mixing chamber, is linked together with the inner peripheral surface of outer air mixing chamber again to make and still remain secondary air between outer air mixing chamber, the interior air mixing chamber and supply the passageway, outer air mixing passageway can not influence the secondary air between outer air mixing chamber, the interior air mixing chamber and supply.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the injection structure and the burner comprising the injection structure are characterized in that the adjusting sheet is arranged in the injection pipe, the radial conduction area of the injection pipe is adjusted in a mode that the adjusting sheet moves in the injection pipe, and then the injection capacity of the injection pipe is adjusted, so that the injection capacity of the burner can be matched with the load at any time, and the best combustion working condition is achieved.
Drawings
Fig. 1 is a schematic view of the structure of the burner of the present invention.
Fig. 2 is a schematic view of another angle of the burner shown in fig. 1.
Fig. 3 is a schematic view of the internal structure of the burner shown in fig. 1.
Fig. 4 is a schematic view of the internal structure of the burner shown in fig. 1.
Fig. 5 is a schematic view of a structure of a tuning vane of the burner shown in fig. 1.
Fig. 6 is a schematic structural view of a gas distributor of the burner shown in fig. 1.
Description of the reference numerals
Outer injection structure 1
Outer air mixing chamber 11
Outer gas mixing channel 12
Outer injection pipe 13
Internal radiation structure 2
Inner air mixing chamber 21
Internal mixing gas channel 22
Inner injection pipe 23
Injection structure 3
Gas mixing chamber 31
Gas mixing channel 32
Horn section 332
Regulating blade 34
Sliding surface 341
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Fig. 1 to 6 show an embodiment of the burner of the present invention. This combustor draws structure 1 and interior structure 2 of drawing including drawing outward, draws outward and draws structure 1 and to set up corresponding to outer ring fire lid, and interior structure 2 of drawing is corresponding to inner ring fire lid setting.
The injection structure 3 of the outer injection structure 1 and the inner injection structure 2 comprises a gas mixing chamber 31, a gas mixing channel 32, an injection pipe 33 and an adjusting sheet 34, wherein an outlet of the gas mixing channel 32 is communicated with the gas mixing chamber 31, an outlet of the injection pipe 33 is communicated to the gas mixing channel 32, the adjusting sheet 34 extends into the injection pipe 33, and the adjusting sheet 34 can move in the injection pipe 33, so that the radial conduction area of the injection pipe 33 is adjusted. The adjusting sheet 34 is arranged in the injection pipe 33, and the radial conduction area of the injection pipe 33 is adjusted by the mode that the adjusting sheet 34 moves in the injection pipe 33, so that the injection capacity of the injection pipe 33 is adjusted.
The number of the injection pipes 33 can be several, and the number of the adjusting sheets 34 is less than or equal to the number of the injection pipes 33. A plurality of injection pipes 33 are arranged, and adjusting pieces 34 are arranged in a plurality of injection pipes 33 or all injection pipes 33, so that multi-stage adjustment can be realized according to different load requirements. Compared with a single injection pipe, the multi-injection pipe 33 has a larger adjusting range and higher flexibility.
In order to ensure the injection strength of the injection pipe 33 at the time of the lowest load, the injection pipe 33 having the outlet closest to the gas mixing chamber 31 may not be provided with the adjustment piece 34. At the lowest load, the adjusting sheet 34 in other injection pipes 33 seals the injection pipe 33, and the injection pipe 33 with the outlet closest to the gas mixing chamber 31 keeps the normal injection strength. The ejector pipe 33 with the outlet closest to the gas mixing chamber 31 has the shortest path in the process that the mixed airflow flows from the outlet of the ejector pipe 33 to the gas mixing chamber 31 through the gas mixing channel 32 because the ejector pipe 33 is closest to the gas mixing chamber 31. Therefore, when the injection capacity is adjusted, the injection pipe 33 far away from the gas mixing chamber 31 is closed preferentially, the injection pipe 33 near the gas mixing chamber 31 is kept in an open state, and the energy required by the flowing of the mixed gas flow can be saved.
In this embodiment, draw and penetrate structure 3 and have two, two draw and penetrate structure 3 and be respectively for drawing structure 1, interior injection structure 2 outward. The air mixing chamber 31 of the outer injection structure 1 is an outer air mixing chamber 11, and the air mixing chamber 31 of the inner injection structure 2 is an inner air mixing chamber 21; the gas mixing channel 32 of the outer injection structure 1 is an outer gas mixing channel 12, and the gas mixing channel 32 of the inner injection structure 2 is an inner gas mixing channel 22; the injection pipe 33 of the outer injection structure 1 is the outer injection pipe 13, and the injection pipe 33 of the inner injection structure 2 is the inner injection pipe 23.
In this embodiment, the number of the injection pipes 33 of each injection structure 3 is three, that is, the number of the outer injection pipes 13 of the outer injection structure 1 is three, and the number of the inner injection pipes 23 of the inner injection structure 2 is also three. In other embodiments, the number of the injection pipes 33 may be set to other numbers according to the requirement of injection capacity.
As shown in fig. 1 to 3, the outer air mixing chamber 11 is disposed around the inner air mixing chamber 21, and the outer air mixing passage 12 is disposed around the inner air mixing passage 22. Through the setting, make outer gas mixing chamber 11 can correspond outer loop fire lid setting, interior gas mixing chamber 21 can correspond inner ring fire lid setting, make and draw structure 1 to encircle and draw structure 2 setting in leading outward, draw structure 1, draw the relative position between the structure 2 compacter in leading outward.
When the outer air mixing chamber 11 is arranged around the inner air mixing chamber 21, the outlets of the outer air mixing channels 12 are arranged into a plurality of outlets, and the outlets of the outer air mixing channels 12 are arranged around the inner circumferential surface of the outer air mixing chamber 11. The outlet of the outer air mixing channel 12 is arranged to extend the outer air mixing channel 12 from the lower part of the inner air mixing chamber 21 to the space between the outer air mixing chamber 11 and the inner air mixing chamber 21, and then to be communicated with the inner circumferential surface of the outer air mixing chamber 11, so that a secondary air supplement channel is still reserved between the outer air mixing chamber 11 and the inner air mixing chamber 21, and the secondary air supplement between the outer air mixing chamber 11 and the inner air mixing chamber 21 is not influenced by the outer air mixing channel 12.
As shown in fig. 3 to 4, the gas mixing passage 32 is a spiral passage, the spiral passage is located below the gas mixing chamber 31, the spiral passage spirally rises, and outlets of the plurality of injection pipes 33 are sequentially arranged along the extending direction of the spiral passage. When the gas mixing channel 32 is a spiral channel, the outlets of the plurality of ejector pipes 33 are sequentially arranged along the extending direction of the spiral channel, so that one ejector pipe 33 is arranged at a certain distance of the spiral channel, and the flowing performance of the mixed gas flow in the spiral channel is kept at a higher level all the time.
In this embodiment, the number of the ejection structures 3 is two, and the two ejection structures are respectively an outer ejection structure 1 and an inner ejection structure 2; correspondingly, the outer gas mixing channel 12 and the inner gas mixing channel 22 can be set as spiral channels, and the outer gas mixing channel 12 surrounds the outer part of the inner gas mixing channel 22, so that the outer injection structure 1 and the inner injection structure 2 are independent from each other, and the whole combustor is compact in structure.
Fig. 4 to 5 show a specific arrangement of the adjusting piece 34 in the injection pipe 33.
An insertion groove 331 communicated to the inside of the injection pipe 33 is formed on the outer peripheral surface of the injection pipe 33; the outer surface of the adjustment tab 34 includes two sliding surfaces 341 parallel to each other and a circumferential surface 342 located between the two sliding surfaces 341, the circumferential surface 342 forms an adjustment concave hole 343 recessed inward, and the extending direction of the adjustment concave hole 343 is arranged parallel to the sliding surfaces 341.
The injection structure 3 further comprises a support rod 35, the support rod 35 is provided with a support end 351, the support end 351 is inserted into the adjusting concave hole 343, the outer peripheral surface of the support end 351 is matched with the inner peripheral surface of the adjusting concave hole 343, and the adjusting sheet 34 can move on the support end 351 along the extending direction of the adjusting concave hole 343; the support end 351 and the regulating blade 34 enter the insertion slot 331, the shape of the regulating blade 34 is adapted to the shape of the insertion slot 331, and the shape of the circumferential surface 342 of the regulating blade 34 is matched with the inner circumferential surface of the injection pipe 33.
Through the above arrangement, the two sliding surfaces 341 of the regulating blade 34 contact with the insertion groove 331, the regulating concave hole 343 of the regulating blade 34 contacts with the supporting end 351, and the regulating blade 34 can move on the supporting end 351, so that the area of the regulating blade 34 extending into the injection pipe 33 changes. When the adjusting sheet 34 moves to the innermost part, the circumferential surface 342 of the adjusting sheet 34 is completely attached to the inner circumferential surface of the injection pipe 33, and the injection pipe 33 is completely sealed by the adjusting sheet 34. When the adjusting sheet 34 moves downwards, the downward movement position of the adjusting sheet 34 can be determined according to the radial conduction area of the injection pipe 33 required by practice.
As shown in fig. 5, the ejector pipe 33 includes a horn section 332 and a transition section 333, one end of the horn section 332 is an ejector inlet 334 of the ejector pipe 33, the diameter of the horn section 332 gradually decreases along a direction away from the ejector inlet 334, the transition section 333 is connected to one end of the horn section 332 away from the ejector inlet 334, and the adjusting sheet 34 is disposed in the transition section 333, that is, the insertion slot 331 is disposed in the transition section 333. The adjusting sheet 34 is arranged at the transition section 333 behind the horn section 332, so that the adjusting sheet 34 can adjust the ejection capacity of the ejection pipe 33 more effectively.
As shown in fig. 1 to 4 and 6, the injection structure 3 further includes a gas distribution seat 36, the gas distribution seat 36 is located below the injection pipe 33, and the gas distribution seat 36 is provided with a gas outlet 361, and the gas outlet 361 and the inlet of the injection pipe 33 are coaxially arranged.
The gas outlet 361 of the gas distributing base 36 is used for outputting gas, and the gas enters the injection pipe 33 through the gas outlet 361 and the injection inlet 334 of the injection pipe 33 and then enters the gas mixing chamber 31 through the injection pipe 33 and the gas mixing channel 32.
The injection structure 3 further comprises a nozzle 37, the nozzle 37 is installed on the fuel gas outlet 361, and the nozzle 37 is coaxially arranged facing the injection inlet 334 of the injection pipe 33. After being injected by the nozzle 37, the gas ejected from the nozzle 37 drives the ambient air to enter the injection pipe 33, so as to form mixed gas flow.
As shown in fig. 6, the air distributor 36 includes a base 362 and an air distributor 363, wherein an air inlet cavity 364 is formed in the base 362; the air inlet cavity 364 is communicated with the inlet of the air distribution pipe 363, and the outlet of the air distribution pipe 363 is a fuel gas outlet 361. Wherein, the gas distributing base 36 is further provided with a gas inlet 365, the gas inlet 365 is used for inputting gas, and the gas inlet 365 is communicated with the gas inlet cavity 364.
When the number of the injection pipes 33 is multiple, the number of the corresponding gas distributing pipes 363 and the number of the corresponding nozzles 37 are the same as the number of the injection pipes 33; the gas distributing pipe 363 and the nozzle 37 are arranged corresponding to the injection pipe 33 one by one. Meanwhile, the number of the air inlet cavities 364 communicated with the air distribution pipes 363 is the same as that of the injection pipes 33, each air distribution pipe 363 is communicated with one air inlet cavity 364, and each air inlet cavity 364 is an independent cavity.
As shown in fig. 4, the support bar 35 may be fixed to the gas-distributing base 36. Specifically, the gas distributing pipe 363 has a horizontal section 366 extending in a substantially horizontal direction, and the corresponding ejector pipe 33 is located above the gas distributing pipe 363, and the extending direction of the ejector pipe 33 is coaxial with the gas outlet 361 and the nozzle 37. One end of the support rod 35 is fixed on the outer circumferential surface of the horizontal section 366, and the other end of the support rod 35 is a support end 351 extending into the injection pipe 33. The support rod 35 is fixed on the gas distribution seat 36, so that the whole structure of the injection structure 3 is compact.
In this embodiment, the two injection structures 3 are respectively the outer injection structure 1 and the inner injection structure 2, the number of the outer injection pipes 13 of the outer injection structure 1 is three, and the number of the inner injection pipes 23 of the inner injection structure 2 is also three. Correspondingly, the number of the gas distributing pipes 363, the gas inlet cavities 364, the gas inlets 365 and the nozzles 37 of the gas distributing base 36 is six, and each outer ejector pipe 13 or each inner ejector pipe 23 is matched with one group of the gas distributing pipes 363, the gas inlet cavities 364, the gas inlets 365 and the nozzles 37. The air flow channels formed by the outer injection pipes 13 or the inner injection pipes 23 are independent from each other and do not influence each other.
In other embodiments, the number of the injection structures of the burner can be set to be one or more, and the number of the injection structures is set according to the number of the independent gas mixing chambers required by the burner.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (11)
1. The utility model provides an draw and penetrate structure, its characterized in that draw and penetrate the structure and include:
a gas mixing chamber;
the outlet of the gas mixing channel is communicated with the gas mixing chamber;
the outlet of the injection pipe is communicated to the gas mixing channel;
the outer surface of the adjusting sheet comprises two parallel sliding surfaces and a circumferential surface positioned between the two sliding surfaces, the circumferential surface of the injection pipe is provided with an insertion groove communicated with the injection pipe, the shape of the adjusting sheet is matched with that of the insertion groove, the shape of the circumferential surface of the adjusting sheet is matched with that of the inner circumferential surface of the injection pipe, the adjusting sheet extends into the injection pipe, and the adjusting sheet can move in the injection pipe so as to adjust the radial conduction area of the injection pipe; the quantity of the ejection pipes is a plurality of, the quantity of the adjusting pieces is smaller than that of the ejection pipes, the ejection pipe with the outlet closest to the gas mixing chamber is not provided with the adjusting pieces, when the load is lowest, the adjusting pieces in the other ejection pipes seal the ejection pipes, and the ejection pipe with the outlet closest to the gas mixing chamber keeps normal ejection strength.
2. The injection structure as claimed in claim 1, further comprising a gas distribution seat located below the injection pipe, wherein the gas distribution seat is provided with a gas outlet, and the gas outlet is arranged corresponding to the injection inlet of the injection pipe.
3. The injection structure as claimed in claim 2, further comprising a nozzle, wherein the nozzle is installed on the gas outlet and faces the injection inlet of the injection pipe.
4. The ejector structure of claim 2, wherein the gas distributor comprises:
the air inlet cavity is formed in the base;
the gas inlet cavity is communicated with the inlet of the gas distribution pipe, and the outlet of the gas distribution pipe is the fuel gas outlet.
5. The injection structure according to claim 1, wherein an adjusting recess is formed in the circumferential surface of the ring and recessed inward, and the extending direction of the adjusting recess is arranged parallel to the sliding surface;
the injection structure further comprises a supporting rod, the supporting rod is provided with a supporting end, the supporting end is inserted into the adjusting concave hole, the outer peripheral surface of the supporting end is matched with the inner peripheral surface of the adjusting concave hole, and the adjusting sheet can move on the supporting end along the extending direction of the adjusting concave hole;
the support end is inserted into the insertion groove together with the regulation piece.
6. The injection structure as claimed in claim 5, further comprising a gas distribution seat, wherein the gas distribution seat is located below the injection pipe, and the support rod is fixed on the gas distribution seat.
7. The ejector structure according to claim 1, wherein the ejector tube having the outlet closest to the gas mixing chamber is not provided with the regulating piece.
8. The injection structure as claimed in claim 1, wherein the injection pipe includes a horn section and a transition section, one end of the horn section is an injection inlet of the injection pipe, the diameter of the horn section gradually decreases along a direction away from the inlet, the transition section is connected to one end of the horn section away from the inlet, and the adjusting piece is arranged in the transition section.
9. The injection structure as claimed in claim 1, wherein the number of the injection pipes is several, the gas mixing passage is a spiral passage, the spiral passage is located below the gas mixing chamber, the spiral passage rises spirally, and outlets of the injection pipes are sequentially arranged along the extending direction of the spiral passage.
10. A burner is characterized by comprising an outer injection structure and an inner injection structure, wherein the outer injection structure and the inner injection structure are the injection structures according to any one of claims 1 to 9, a gas mixing chamber of the outer injection structure is an outer gas mixing chamber, and a gas mixing chamber of the inner injection structure is an inner gas mixing chamber; the gas mixing channel of the outer injection structure is an outer gas mixing channel, and the gas mixing channel of the inner injection structure is an inner gas mixing channel; the outer air mixing chamber surrounds the inner air mixing chamber, and the outer air mixing channel surrounds the inner air mixing channel.
11. The burner of claim 10, wherein the outer gas mixing channel has a plurality of outlets, and the plurality of outlets of the outer gas mixing channel are arranged around the inner circumferential surface of the outer gas mixing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033113.1A CN112856411B (en) | 2021-01-11 | 2021-01-11 | Injection structure and combustor comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033113.1A CN112856411B (en) | 2021-01-11 | 2021-01-11 | Injection structure and combustor comprising same |
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| Publication Number | Publication Date |
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| CN112856411A CN112856411A (en) | 2021-05-28 |
| CN112856411B true CN112856411B (en) | 2022-03-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234201A (en) * | 2013-04-10 | 2013-08-07 | 宁波方太厨具有限公司 | Ejecting pipe |
| CN107667256A (en) * | 2015-05-19 | 2018-02-06 | Somipress注射金属协会股份责任有限公司 | Double flame crown gas burners |
| CN105180168A (en) * | 2015-09-23 | 2015-12-23 | 广东超人节能厨卫电器有限公司 | Efficient domestic gas cooking appliance |
| CN108443878A (en) * | 2018-03-09 | 2018-08-24 | 彭建国 | A kind of upper air inlet burner of adjustable air air inlet |
| CN111964052A (en) * | 2019-05-19 | 2020-11-20 | 宁波方太厨具有限公司 | Injection pipe for gas stove |
| CN111664454A (en) * | 2020-07-22 | 2020-09-15 | 宁波方太厨具有限公司 | Stove burner |
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|---|---|
| CN112856411A (en) | 2021-05-28 |
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