CN106287715B - Blast burner - Google Patents
Blast burner Download PDFInfo
- Publication number
- CN106287715B CN106287715B CN201610790038.2A CN201610790038A CN106287715B CN 106287715 B CN106287715 B CN 106287715B CN 201610790038 A CN201610790038 A CN 201610790038A CN 106287715 B CN106287715 B CN 106287715B
- Authority
- CN
- China
- Prior art keywords
- gas nozzle
- exhaust gas
- air
- burner
- gaseous mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007921 spray Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 89
- 239000008246 gaseous mixture Substances 0.000 claims description 44
- 239000000567 combustion gas Substances 0.000 claims description 26
- 239000013589 supplement Substances 0.000 abstract description 12
- 238000007664 blowing Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000005496 tempering Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 244000171022 Peltophorum pterocarpum Species 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- 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
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
-
- 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
Landscapes
- 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 discloses an air-blowing burner, wherein a gas ejector pipe and a gas spray pipe which is communicated with the gas ejector pipe and protrudes out of the furnace end base are arranged on the furnace end base, a gas nozzle which can spray out gas in the gas spray pipe is arranged above a panel, an upper furnace end cover which forms an air flowing cavity with the upper furnace end base is also connected onto the furnace end base, the upper furnace end cover is sleeved outside the gas spray pipe, an air flow channel which is communicated with the air flowing cavity is formed between the upper furnace end cover and the outer wall of the gas spray pipe, an air blower which can introduce external air into the air flowing cavity is connected onto the furnace end and is positioned below the panel, a distributor is connected onto the upper furnace end cover, a mixed gas flow channel which can allow air in the air flow channel and gas in the gas nozzle to pass is arranged on the distributor, and a fire cover is connected onto the upper end of the. The invention effectively prevents gas leakage and backfire, has full primary air supplement, keeps the blower away from the gas nozzle, and has low temperature rise and high reliability.
Description
【Technical field】
The present invention relates to a kind of burner, more specifically a kind of blast burner.
【Background technology】
Current embedded gas range mainly using full upper inlet wind type burner or it is complete under into two kinds of wind combustor.On complete
Into wind combustor, primary air, auxiliary air supplement on the upside of panel entirely, internal below panel to be all sealing pipeline, can be effective
Prevent the security incident caused by tempering etc., but structural gap supplement is more difficult, yellow flame easily occurs, so existing complete
Upper inlet wind type burner thermic load is relatively low, this defect has seriously affected the application of upper inlet wind type burner, in addition, on existing
Air inlet structure gas apparatus, leaves certain injection distance between its gas nozzle and exhaust gas nozzle, when surrounding has wind, combustion gas may
Phenomena such as deviateing exhaust gas nozzle, cause injection insufficient, or even burning at gas nozzle.And burn for lower inlet air
Device, such as current blast burner, primary air replenish internal progress below panel, and auxiliary air is then on the upside of panel
Supplement, burner air supplement is relatively abundant, is conducive to the lifting of thermic load and the thermal efficiency, but under returned into wind combustor
Easily occur security incident when fiery, and under into wind combustor an injection it is internal below panel carry out, be easy to cause in
The defects of portion's temperature rise is higher.
Therefore, the present invention is based on the deficiency of the above and produces.
【The content of the invention】
The present invention seeks to overcome the deficiencies in the prior art, there is provided a kind of blast burner simple in structure.The air blast
Burner can effectively prevent gas leakage, tempering, and supplement primary air by air blower, and primary air supplement is filled very much
Point, and air blower is installed on below panel, and away from gas nozzle, air blower temperature rise is low, and reliability is high.
The present invention is achieved by the following technical solutions：
A kind of blast burner, including burner 1 and the panel 2 for installing burner 1, it is characterised in that：The burner 1
Including furnace end base 11, the furnace end base 11 is equipped with combustion gas ejector pipe 12 and communicates and protrude from combustion gas ejector pipe 12
The exhaust gas nozzle of furnace end base 11, the top of panel 2 are equipped with the gas nozzle 14 that can spray the combustion gas in exhaust gas nozzle,
It is also associated with surrounding the burner upper cover 16 of air flow lumen 15,16 sets of the burner upper cover with it on the furnace end base 11
Be located on the outside of exhaust gas nozzle, and between the burner upper cover 16 and the outer wall of exhaust gas nozzle formed with air flow lumen 15
The air flow channel 17 communicated, is connected with the burner 1 and positioned at the lower section of panel 2 and extraneous air can be introduced air flow lumen
Air blower 3 in 15, distributor 4 is connected with the burner upper cover 16, the distributor 4, which is equipped with, can supply air flow channel
The gaseous mixture runner 5 that the combustion gas in air and gas nozzle 14 in 17 passes through, 5 upper end of gaseous mixture runner are connected with fire
Lid 6.
Blast burner as described above, it is characterised in that：The gas nozzle 14 is connected directly between on exhaust gas nozzle
End.
Blast burner as described above, it is characterised in that：The cross-sectional area and gas nozzle of the air flow channel 17
14 aperture positive correlation.
Blast burner as described above, it is characterised in that：The distributor 4 is tightly connected with burner upper cover 16.
Blast burner as described above, it is characterised in that：The middle part of fire cover 6 is equipped with anti-dry burning device 7.
Blast burner as described above, it is characterised in that：The burner upper cover 16 is equipped with integrally formed with it
Bulge loop 18, forms the air flow channel 17,4 sets of the distributor between 18 inner wall of bulge loop and exhaust gas nozzle outer wall
In the outside of bulge loop 18, the exhaust gas nozzle and gas nozzle 14 are directly protruding into gaseous mixture runner 5.
Blast burner as described above, it is characterised in that：The air blower 3 is connected to stove by wind turbine connector 8
On first 1, the wind turbine connector 8 is equipped with the connecting passage 9 that air flow lumen 15 is flowed into for extraneous air.
Blast burner as described above, it is characterised in that：The furnace end base 11 is equipped with least one gas injection
Pipe, the distributor 4 are equipped with gaseous mixture runner 5 corresponding with exhaust gas nozzle.
Blast burner as described above, it is characterised in that：The gaseous mixture runner 5 includes outer shroud gaseous mixture runner
51st, middle ring gaseous mixture runner 52 and inner ring gaseous mixture runner 53, the exhaust gas nozzle include with outer shroud gaseous mixture runner 51, in
53 corresponding outer shroud exhaust gas nozzle 131 of ring gaseous mixture runner 52 and inner ring gaseous mixture runner, middle ring exhaust gas nozzle 132 and interior
Ring exhaust gas nozzle 133, the fire cover 6 include and outer shroud gaseous mixture runner 51, middle ring gaseous mixture runner 52 and inner ring gaseous mixture
The corresponding external ring fire cover 61 of runner 53, middle ring fire cover 62 and interior ring fire cover 63, the combustion gas ejector pipe 12 include with it is outer
Ring exhaust gas nozzle 131, middle ring exhaust gas nozzle 132 and the corresponding outer shroud ejector pipe 121 of inner ring exhaust gas nozzle 133, middle ring are drawn
Penetrate pipe 122 and inner ring ejector pipe 123.
Blast burner as described above, it is characterised in that：Also set between the middle ring fire cover 62 and interior ring fire cover 63
There is flame-out protection device 10.
Compared with prior art, the present invention has the following advantages：
1st, the present invention supplements primary air by air blower, and primary air supplement is very abundant, the outside that air blower introduces
Air enters air flow lumen, then enters gaseous mixture runner by air flow channel, and combustion gas is mixed from gas nozzle also entrance
Flow channel is closed, realizes that primary air is supplemented on the upside of panel so that all sealing structures of fuel gas pipeline below panel,
Effectively prevent gas leakage or tempering, and air blower is installed on below panel, and away from gas nozzle, air blower temperature rise is low, can
High by property, gas nozzle is installed on above panel, is sealing Gas Pipe below panel, is advantageously reduced temperature internal below panel
Rise, the reliability of product is improved, so as to configure more intelligent object.
2nd, gas nozzle of the invention is connected directly between jet pipe upper end, and the primary air that introduces of air blower is from air stream
Road flows into gaseous mixture runner so that primary air injection carries out on the upside of panel, realizes that panel lower inner temperature rise is low, air-tightness
It is good, improve product reliability.
3rd, the aperture positive correlation of the cross-sectional area and gas nozzle of air flow channel of the invention, so as to effectively control air to mend
Charge, can evenly distribute air, ensure that burning is abundant.
4th, it is equipped with anti-dry burning device in the middle part of fire cover of the invention, it can be ensured that safety.
5th, the configuration of the present invention is simple, primary air supplement is abundant, and air blower operating ambient temperature is low, and service life is longer,
It is adapted to promote and apply.
【Brief description of the drawings】
Fig. 1 is stereogram of the present invention；
Fig. 2 is sectional view of the present invention；
Fig. 3 is the sectional view of the component of the present invention；
Fig. 4 is one of stereogram of component of the present invention；
Fig. 5 is the two of the stereogram of the component of the present invention.
【Embodiment】
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figures 1 to 5, a kind of blast burner, including burner 1 and the panel 2 for installing burner 1, it is described
Burner 1 includes furnace end base 11, and the furnace end base 11 is equipped with combustion gas ejector pipe 12 and is communicated simultaneously with combustion gas ejector pipe 12
The exhaust gas nozzle of furnace end base 11 is protruded from, the top of panel 2 is equipped with the combustion gas that can spray the combustion gas in exhaust gas nozzle
Nozzle 14, is also associated with surrounding the burner upper cover 16 of air flow lumen 15, the burner with it on the furnace end base 11
Upper cover 16 is set on the outside of exhaust gas nozzle, and between the burner upper cover 16 and the outer wall of exhaust gas nozzle formed with air
The air flow channel 17 that flow cavity 15 communicates, be connected with the burner 1 and positioned at the lower section of panel 2 extraneous air can be introduced it is empty
Air blower 3 in flow of air chamber 15, distributor 4 is connected with the burner upper cover 16, and the distributor 4 is equipped with and can supply
The gaseous mixture runner 5 that the combustion gas in air and gas nozzle 14 in air flow channel 17 passes through, 5 upper end of gaseous mixture runner
It is connected with fire cover 6, the arrow in Fig. 2 and Fig. 3 shows the flow direction of air-flow.Primary air is supplemented by air blower 3, once
Air supplement is very abundant, and air blower is installed on the lower section of panel 2, and away from gas nozzle 14,3 temperature rise of air blower is low, reliably
Property it is high, gas nozzle 14 is installed on above panel, and the lower section of panel 2 is sealing Gas Pipe, and it is internal below to advantageously reduce panel 2
Temperature rise, improves the reliability of product, so as to configure more intelligent object.
As shown in Figures 2 to 5, the gas nozzle 14 is connected directly between exhaust gas nozzle upper end, air blower 3 introduce one
Secondary air is flowed into from air flow channel 17, and with flowing into gaseous mixture runner after the combustion gas mixing in gas nozzle 14, so as to complete one
Secondary air ejection so that primary air injection is carried out in the upside of panel 2, realizes that 2 lower inner temperature rise of panel is low, and improving product can
By property.In addition, the combustion gas in exhaust gas nozzle can only enter in gas nozzle 14, conventional gas jet pipe and gas nozzle are changed
The structure of a splaying is left between 14, the factors such as extraneous wind speed can be avoided to influence primary air injection.
As shown in Figure 3 and Figure 4, the aperture positive correlation of the cross-sectional area of the air flow channel 17 and gas nozzle 14.From
And air magnitude of recruitment is effectively controlled, air can be evenly distributed, ensures that burning is abundant
As shown in Figure 1, the middle part of fire cover 6 is equipped with anti-dry burning device 7, it can be ensured that safety.
As shown in Fig. 2, the distributor 4 is tightly connected with burner upper cover 16, the leakage of combustion gas is effectively prevented, it is ensured that peace
Entirely.
As shown in Figures 2 to 4, the burner upper cover 16 is equipped with and its integrally formed bulge loop 18, the bulge loop
The air flow channel 17 is formed between 18 inner walls and exhaust gas nozzle outer wall, the distributor 4 is sleeved on the outside of bulge loop 18, described
Exhaust gas nozzle and gas nozzle 14 be directly protruding into gaseous mixture runner 5.Therefore, the periphery of gas nozzle 14 is sealing structure, combustion
Gas can only enter in gaseous mixture runner 5, and the factors such as extraneous wind speed can be avoided to influence primary air injection.
As shown in Figures 2 and 3, the air blower 3 is connected on burner 1 by wind turbine connector 8, and the wind turbine connects
Connect device 8 and be equipped with the connecting passage 9 that air flow lumen 15 is flowed into for extraneous air.Wind turbine connector 8 makes air blower 3 further from combustion
Gas jets 14, can be such that air blower 3 is in the environment of lower temperature, reduce the temperature rise of air blower 3, and that improves product can
By property.
As shown in Figures 2 and 3, the gaseous mixture runner 5 includes outer shroud gaseous mixture runner 51, middle ring gaseous mixture runner 52
With inner ring gaseous mixture runner 53, the exhaust gas nozzle includes and outer shroud gaseous mixture runner 51, middle ring gaseous mixture runner 52 and interior
53 corresponding outer shroud exhaust gas nozzle 131 of ring gaseous mixture runner, middle ring exhaust gas nozzle 132 and inner ring exhaust gas nozzle 133, it is described
Fire cover 6 include it is corresponding with outer shroud gaseous mixture runner 51, middle ring gaseous mixture runner 52 and inner ring gaseous mixture runner 53 outer
Ring fire cover 61, middle ring fire cover 62 and interior ring fire cover 63, the combustion gas ejector pipe 12 include and outer shroud exhaust gas nozzle 131, middle ring
The exhaust gas nozzle 132 and corresponding outer shroud ejector pipe 121 of inner ring exhaust gas nozzle 133, middle ring ejector pipe 122 and inner ring ejector pipe
123.Therefore, blast burner is tricyclic burner, naturally it is also possible to is monocyclic or bicyclic burner.In this tricyclic burner
In, inner ring sets 1 gas nozzle 14, and middle ring sets 2 gas nozzles 14, and outer shroud sets 4 gas nozzles 14.Moreover, institute
The primary air supplement of some gas nozzles 14 shares an air blower 3, effectively reduces the volume of gas apparatus so that structure is tight
Gather.
Certainly, exhaust gas nozzle can not also be arranged and circularized, but the furnace end base 11 is equipped with least one combustion
Gas blowout pipe, the distributor 4 are equipped with gaseous mixture runner 5 corresponding with exhaust gas nozzle.
As shown in Figure 1, it is additionally provided with flame-out protection device 10 between the middle ring fire cover 62 and interior ring fire cover 63.
Claims (10)
1. a kind of blast burner, including burner (1) and the panel (2) for installing burner (1), it is characterised in that：Described
Burner (1) includes furnace end base (11), the furnace end base (11) be equipped with combustion gas ejector pipe (12) and with combustion gas ejector pipe
(12) communicate and protrude from the exhaust gas nozzle of furnace end base (11), being equipped with above the panel (2) can be by exhaust gas nozzle
The gas nozzle (14) that combustion gas sprays, is also associated with surrounding the stove of air flow lumen (15) with it on the furnace end base (11)
Head upper cover (16), the burner upper cover (16) is set on the outside of exhaust gas nozzle, and the burner upper cover (16) and combustion gas
Formed with the air flow channel (17) communicated with air flow lumen (15) between the outer wall of jet pipe, on the burner (1) and it is located at
The air blower (3) that extraneous air can be introduced in air flow lumen (15), the burner upper cover are connected with below panel (2)
(16) distributor (4) is connected with, the distributor (4) is equipped with the air and gas nozzle that can be supplied in air flow channel (17)
(14) the gaseous mixture runner (5) that the combustion gas in passes through, described gaseous mixture runner (5) upper end are connected with fire cover (6).
2. blast burner according to claim 1, it is characterised in that：The gas nozzle (14) is connected directly between combustion
Gas blowout pipe upper end.
3. blast burner according to claim 1 or 2, it is characterised in that：The cross section of the air flow channel (17)
Product and the aperture positive correlation of gas nozzle (14).
4. blast burner according to claim 3, it is characterised in that：The distributor (4) and burner upper cover (16)
It is tightly connected.
5. blast burner according to claim 3, it is characterised in that：Anti-dry is equipped with the middle part of the fire cover (6) to fill
Put (7).
6. blast burner according to claim 3, it is characterised in that：The burner upper cover (16) is equipped with and one
Body formed bulge loop (18), forms the air flow channel (17) between the bulge loop (18) inner wall and exhaust gas nozzle outer wall,
The distributor (4) is sleeved on the outside of bulge loop (18), and the exhaust gas nozzle and gas nozzle (14) are directly protruding into mixed airflow
Road (5).
7. blast burner according to claim 3, it is characterised in that：The air blower (3) passes through wind turbine connector
(8) it is connected on burner (1), the wind turbine connector (8) is equipped with the company that air flow lumen (15) is flowed into for extraneous air
Connect runner (9).
8. blast burner according to claim 6, it is characterised in that：The furnace end base (11) is equipped with least one
A exhaust gas nozzle, the distributor (4) are equipped with gaseous mixture runner (5) corresponding with exhaust gas nozzle.
9. blast burner according to claim 6, it is characterised in that：The gaseous mixture runner (5) is mixed including outer shroud
Flow channel (51), middle ring gaseous mixture runner (52) and inner ring gaseous mixture runner (53) are closed, the exhaust gas nozzle includes and outer shroud
Gaseous mixture runner (51), middle ring gaseous mixture runner (52) and the corresponding outer shroud exhaust gas nozzle of inner ring gaseous mixture runner (53)
(131), middle ring exhaust gas nozzle (132) and inner ring exhaust gas nozzle (133), the fire cover (6) include and outer shroud gaseous mixture runner
(51), middle ring gaseous mixture runner (52) and the corresponding external ring fire cover (61) of inner ring gaseous mixture runner (53), middle ring fire cover
(62) include and outer shroud exhaust gas nozzle (131), middle ring exhaust gas nozzle with interior ring fire cover (63), the combustion gas ejector pipe (12)
(132) and the corresponding outer shroud ejector pipe (121) of inner ring exhaust gas nozzle (133), middle ring ejector pipe (122) and inner ring ejector pipe
(123)。
10. blast burner according to claim 9, it is characterised in that：The middle ring fire cover (62) and interior ring fire cover
(63) flame-out protection device (10) is additionally provided between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790038.2A CN106287715B (en) | 2016-08-31 | 2016-08-31 | Blast burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790038.2A CN106287715B (en) | 2016-08-31 | 2016-08-31 | Blast burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287715A CN106287715A (en) | 2017-01-04 |
| CN106287715B true CN106287715B (en) | 2018-04-17 |
Family
ID=57673824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610790038.2A Active CN106287715B (en) | 2016-08-31 | 2016-08-31 | Blast burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106287715B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186041A (en) * | 2018-05-24 | 2019-08-30 | 华帝股份有限公司 | Three-ring combustor |
| CN112082158B (en) * | 2019-06-13 | 2021-07-09 | 宁波方太厨具有限公司 | Stove burner |
| CN112240550B (en) * | 2020-09-16 | 2021-12-03 | 宁波方太厨具有限公司 | Upper air inlet burner |
| CN114234184B (en) * | 2021-12-23 | 2024-01-02 | 佛山市顺德区美的洗涤电器制造有限公司 | Burner and gas stove |
| CN114593423A (en) * | 2022-03-01 | 2022-06-07 | 芜湖美的智能厨电制造有限公司 | Burner and gas stove |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20070133A1 (en) * | 2007-02-26 | 2008-08-27 | Indesit Co Spa | GAS BURNER SYSTEM FOR FOOD COOKING APPLIANCES |
| CN201582820U (en) * | 2009-12-28 | 2010-09-15 | 杭州老板电器股份有限公司 | Three-ring firepower composite structure burner |
| CN102147117B (en) * | 2011-05-03 | 2012-08-22 | 张祺生 | Tempering-proof upper air inlet air regulating type gas stove |
| JP5616321B2 (en) * | 2011-12-16 | 2014-10-29 | リンナイ株式会社 | Gas stove |
| CN202733890U (en) * | 2012-07-04 | 2013-02-13 | 中山华帝燃具股份有限公司 | Stove burner using blast type to supplement secondary air |
| CN205191567U (en) * | 2015-10-26 | 2016-04-27 | 阿诗丹顿电气(中山)有限公司 | Go up air inlet formula combustor totally |
| CN105546538A (en) * | 2016-01-22 | 2016-05-04 | 广东合胜金属制造有限公司 | Furnace end of stove combustor |
| CN206018624U (en) * | 2016-08-31 | 2017-03-15 | 华帝股份有限公司 | Blast burner |
-
2016
- 2016-08-31 CN CN201610790038.2A patent/CN106287715B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106287715A (en) | 2017-01-04 |
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