CN104132341A - Gas boiler burner - Google Patents
Gas boiler burner Download PDFInfo
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- CN104132341A CN104132341A CN201410374383.9A CN201410374383A CN104132341A CN 104132341 A CN104132341 A CN 104132341A CN 201410374383 A CN201410374383 A CN 201410374383A CN 104132341 A CN104132341 A CN 104132341A
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- burner
- shell
- chuck
- mixing chamber
- boiler
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Abstract
The invention relates to the technical field of burners, in particular to a gas boiler burner. The gas boiler burner comprises a boiler body and a burner body. The boiler body comprises a boiler shell. A heating cavity is formed in the boiler shell. The boiler shell is provided with a discharge port. The discharge port is communicated with the heating cavity. The burner body comprises a burner shell. A cylinder is arranged on the upper portion in the burner shell. A first mixing chamber is formed on the lower portion in the burner shell. A combustion chamber is arranged on the upper portion in the cylinder. A second mixing chamber is arranged on the lower portion in the cylinder. The combustion chamber is communicated with the heating cavity. A combustion plate with a plurality of combustion holes is arranged in the combustion chamber. A plurality of air passages are arranged in the cylinder or on the periphery of the cylinder. The first mixing chamber is connected with a gas pipe and an air boosting device. The burner shell and the boiler shell are connected with each other. The gas boiler burner has the advantages of being reasonable in structural arrangement, long in service life, more sufficient in combustion and the like.
Description
Technical field
The present invention relates to technical field of burner, particularly a kind of burner for gas boiler.
Background technology
Burner for gas boiler be a kind of be the heater of source material with combustion gas, well known and common.Existing boiler-burner generally arranges: a combustion gas spout, and be provided with in its vicinity air port, combustion gas and air together enter combustion chamber, mixed combining combustion in combustion chamber.Prior art is following defect and deficiency because structure setting exists: 1. because combustion gas does not fully mix with air, burn insufficient, cause the wasting of resources; 2. flame hole environment temperature is high, due to cooling system not being set, after using, easily burns out when long-term, causes service life short.Therefore there is larger room for improvement in technology now.
Summary of the invention
The present invention is deficiency and the defect that effectively solves above-mentioned prior art, proposes a kind of scheme of burner for gas boiler, and its scenario-frame is simple, arranges rationally, and combustion gas and air can be fully mixed, so combustion efficiency is good; And port has cooling system around, therefore the burner life-span is long, efficiency is high.
The present invention adopts following technical scheme:
Burner for gas boiler of the present invention, comprises boiler body and burner body, and described boiler body comprises boiler shell, in described boiler shell, forms heating chamber, and boiler shell is provided with floss hole, and described floss hole is communicated with heating chamber, described burner body comprises burner shell, described burner shell internal upper part is provided with cylindrical shell, in burner shell, bottom forms the first mixing chamber, described cylindrical shell internal upper part is combustion chamber, in cylindrical shell, bottom is the second mixing chamber, described combustion chamber is communicated with heating chamber, described the second mixing chamber is communicated with the first mixing chamber, between described combustion chamber and the second mixing chamber, be provided with the slow dividing plate of pressing, slow pressure on dividing plate is provided with and delays pressure through hole, described the second mixing chamber is communicated with by the slow through hole of pressing with combustion chamber, in described combustion chamber, be provided with the burner plate with some burner ports, the inside of described cylindrical shell or periphery are provided with some air ducts, the upper end of described air duct is communicated with heating chamber, the lower end of air duct is communicated with air-source, described the first mixing chamber is connected with Gas Pipe and Air pressurizer, described burner shell is connected mutually with boiler shell.
Further, the lower end of described air duct is communicated with the first mixing chamber, and described Gas Pipe the inner is provided with spout, and described spout is aimed at the second mixing chamber.
Further, described the first mixing chamber below is provided with air plenum, and described air plenum is communicated with Air pressurizer, and described air duct lower end is communicated with air plenum.
Further, between described combustion chamber and the second mixing chamber, be directly communicated with by the inwall of cylindrical shell.
Further, described slow pressure dividing plate is arranged at the lower port of cylindrical shell, and the both sides up and down of described slow pressure dividing plate are respectively combustion chamber and the first mixing chamber.
Further, described combustion chamber is directly communicated with the first mixing chamber, and the downside of described burner plate is the first mixing chamber.
Further, described cylindrical shell is located at the middle position of burner shell internal upper part; Described burner plate is located at middle part or the upper and lower two-port of combustion chamber, and burner plate outer is closely connected with cylindrical shell.
Further, in described burner shell, be set side by side with multiple cylindrical shells.
Further, be provided with the first chuck in described boiler shell, described the first chuck is provided with the first water inlet and the first delivery port, and described the first water inlet and the first delivery port are all communicated with the first chuck is airtight; In described burner shell, be provided with the second chuck, described the second chuck surrounds described cylindrical shell, described the second chuck is provided with the second water inlet and the second delivery port, described the second water inlet and the second delivery port are all communicated with the second chuck is airtight, described the first delivery port is connected by pipeline closed with the second water inlet, between described the first water inlet and the second delivery port by the first chuck with the second chuck is airtight is communicated with.
Further, described boiler shell and burner shell are wholely set, and are provided with the first chuck in described boiler shell, and described the first chuck is provided with the first water inlet, and described the first water inlet is communicated with the first chuck is airtight; In described burner shell, be provided with the second chuck, described the second chuck surrounds described cylindrical shell, described the second chuck is provided with the second delivery port, and described the second delivery port is communicated with the second chuck is airtight, between described the first water inlet and the second delivery port by the first chuck with the second chuck is airtight is communicated with.
Further, in described the second mixing chamber, be provided with the second spoiler.
Further, in described the first mixing chamber, be provided with the first spoiler.
Beneficial effect of the present invention: in burner body of the present invention, set tube structure and air duct is inventive structure of the present invention, described burner plate is located at tube structure inside, arrange like this, can make the combustion chamber of gaseous mixture in cylindrical shell that burning occurs time, be subject to the protection of barrel wall and be not subject to the interference of outer gas stream, therefore flameholding, and flame is short, temperature is high; When the setting of described air duct can make combustion gas mix in the first mixing chamber or the second mixing chamber, ratio does not need very that accurately (this is the difficult point of pre-mixing type combustion apapratus often, need mixing ratio very accurately), it is slightly excessive to need only setting or be adjusted to combustion gas, and in the time of combustion chambers burn, the air entering by air duct can carry out further mixed combustion to excessive unburnt combustion gas, thereby make burning more fully stable, combustion heat value is high; Directly carry out premix by excess air if air duct is not set, can cause flame combustion unstable, flare moves swiftly or departs from burner, makes combustion efficiency undesirable.The present invention is provided with cooling system in combustion chamber periphery in addition, and this makes integral burner parts in low-temperature condition, avoids vitals because excess Temperature damages, and has extended service life, also further utilizes unnecessary heat energy, reaches good effects of energy saving and emission reduction.
Brief description of the drawings
Fig. 1 is the perspective view of analysing and observe of the embodiment of the present invention one;
Fig. 2 is the cross-sectional plane structural representation of the embodiment of the present invention one;
Fig. 3 is the perspective view of analysing and observe of the embodiment of the present invention two;
Fig. 4 is the cross-sectional plane structural representation of the embodiment of the present invention two;
Fig. 5 is the perspective view of analysing and observe of the embodiment of the present invention three;
Fig. 6 is the cross-sectional plane structural representation of the embodiment of the present invention three;
Fig. 7, Fig. 8 are the embodiment of the present invention four cross-sectional plane structural representations;
In figure:
1, boiler body; 11, boiler shell; 12, floss hole; 13, the first chuck;
131, the first water inlet; 132, the first delivery port; 14, heating chamber; 15, pipeline;
2, burner body; 21, burner shell; 22, cylindrical shell; 220, burner port;
221, combustion chamber; 222, the second mixing chamber; 223, the slow dividing plate of pressing; 224, the slow through hole of pressing;
225, burner plate; 226, the second spoiler; 23, air duct; 24, the first mixing chamber;
241, the first spoiler; 25, Gas Pipe; 251, spout; 26, air plenum;
27, the second chuck; 271, the second water inlet; 272, the second delivery port; 3, Air pressurizer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
For ease of explanation the present invention represented central idea in foregoing invention content one hurdle, focus on that preferred embodiment hereby expresses with specific embodiment.
Embodiment mono-
As depicted in figs. 1 and 2, a kind of burner for gas boiler of the present invention, comprises boiler body 1 and burner body 2, and described two parts are equipped with, and form agent structure of the present invention.
Described boiler body 1 comprises boiler shell 11, in described boiler shell 11, forms heating chamber 14, and boiler shell 11 is provided with floss hole 12, and described floss hole 12 is communicated with heating chamber 14.In addition, be provided with the first chuck 13 in described boiler shell 11, described the first chuck 13 is provided with the first water inlet 131 and the first delivery port 132, and described the first water inlet 131 and the first delivery port 132 are all with first chuck 13 is airtight is communicated with.
Described burner body 2 comprises burner shell 21, described burner shell 21 internal upper parts are provided with cylindrical shell 22, the interior bottom of burner shell 21 forms the first mixing chamber 24, described cylindrical shell 22 internal upper parts are combustion chamber 221, the interior bottom of cylindrical shell 22 is the second mixing chamber 222, described combustion chamber 221 is communicated with heating chamber 14, described the second mixing chamber 222 is communicated with the first mixing chamber 24, between described combustion chamber 221 and the second mixing chamber 222, be provided with the slow dividing plate 223 of pressing, slow pressure on dividing plate 223 is provided with and delays pressure through hole 224, described the second mixing chamber 222 is communicated with by the slow through hole 224 of pressing with combustion chamber 221, in described combustion chamber 221, be provided with the burner plate 225 with some burner ports 220.In addition, in described burner shell 21, be provided with the second chuck 27, described the second chuck 27 surrounds described cylindrical shell 22, and described the second chuck 27 is provided with the second water inlet 271 and the second delivery port 272, and described the second water inlet 271 and the second delivery port 272 are all with second chuck 27 is airtight is communicated with.
Described boiler body 1 and burner body 2 adapting devices, that is to say that described burner shell 21 is connected mutually with boiler shell 11, particularly, described burner shell 21 upper ends are embedded in boiler shell 11 lower ends airtight setting, or boiler shell 11 lower ends are embedded in burner shell 21 upper ends airtight setting; Certainly, the present embodiment can be pursued another kind of embodiment, and that is exactly that described boiler shell 11 is wholely set with burner shell 21.When taking to be mutually connected while arranging, described the first delivery port 132 is connected by pipeline 15 is airtight with the second water inlet 271, between described the first water inlet 131 and the second delivery port 272 by the first chuck 13 with second chuck 27 is airtight is communicated with.As the another kind of embodiment of the present embodiment, be that described boiler shell 11 is while being wholely set with burner shell 21, in described boiler shell 11, be provided with the first chuck 13, described the first chuck 13 is provided with the first water inlet 131, and described the first water inlet 131 is with first chuck 13 is airtight is communicated with; In described burner shell 21, be provided with the second chuck 27, described the second chuck 27 surrounds described cylindrical shell 22, described the second chuck 27 is provided with the second delivery port 272, described the second delivery port 272 is with second chuck 27 is airtight is communicated with, between described the first water inlet 131 and the second delivery port 272 by the first chuck 13 with second chuck 27 is airtight is communicated with.
As another main inventive point of the present invention, the inside of described cylindrical shell 22 or periphery are provided with some air ducts 23, the upper end of described air duct 23 is communicated with heating chamber 14, the lower end of air duct 23 is communicated with air-source, the present embodiment is come specifically, described air duct 23 is located at cylindrical shell 22 peripheries and is applied in hermetically in the second chuck 27, the lower end of described air duct 23 is communicated with the first mixing chamber 24, arrange like this, the reasonable integral structure that is conducive to improve the present embodiment, structure is more optimized.
With regard to the present embodiment preferred embodiment specifically, described cylindrical shell 22 is located at the middle position of burner shell 21 internal upper parts, and described chuck 27 is trapped among cylindrical shell 22 peripheries, border; Slow pressure through hole 224 on slow pressure dividing plate 223 between described combustion chamber 221 and the second mixing chamber 222 can be a large through hole, also can be multiple little through holes, its Main Function and principle be utilize the size of through hole regulate in cylindrical shell 22 with air duct 23 in the size of air flux separately, in the time that the air flux in cylindrical shell 22 needs maximum, the slow dividing plate 223 of pressing can omit, and now between combustion chamber 221 and the second mixing chamber 222, is directly communicated with by the inwall of cylindrical shell 22.Described burner plate 225 is located at the middle part of combustion chamber 221, described burner port 220 is arranged on the some through holes on burner plate 225, burner plate 225 borders, outer are closely connected with cylindrical shell 22, such setting can make burning more stable, and the heat of burner plate 225 can be delivered to rapidly on the wall of cylindrical shell 22 borders, carry out heat exchange with the water in chuck 27, thus, not only can effectively utilize waste heat, what is more important, water body can carry out effective cooling to cylindrical shell 22 peripheries, avoid cylindrical shell 22 to damage because of excess Temperature, prolongation service life of the present invention greatly.
Described the first mixing chamber 24 is connected with Gas Pipe 25 and Air pressurizer 3.Specifically concerning the present embodiment, described Gas Pipe 25 the inners are provided with spout 251, described spout 251 is aimed at the second mixing chamber 222, described Air pressurizer 3 provides pressurized air to the first mixing chamber 24, Gas Pipe 25 provides combustion gas to the second mixing chamber 222, air and combustion gas second mixing chamber 222 is interior mix after burning in combustion chamber 221; In described the second mixing chamber 222, be provided with the second spoiler 226, can to make combustion gas mix with air more even in setting like this.
Operation principle: described air is after Air pressurizer 3 enters the first mixing chamber 24, because of pressure higher, lead to respectively the second mixing chamber 222 and ambient air passage 23, the spout 251 places ejection of the second mixing chamber 222 is being aimed in combustion gas, owing to having higher air pressure in the first mixing chamber 24, therefore combustion gas can be interior loose not the letting out of the first mixing chamber 24, and only can rush at the second mixing chamber 222, therefore entering combustion chamber 221 after the interior mixing of the second mixing chamber 222, air and combustion gas burn, now air and combustion gas can regulate control by slow size of pressing through hole 224 in the mixed proportion of the second mixing chamber 222.Unburnt combustion gas meeting is burnt for the second time again with from air duct 23 air out mixing near combustion chamber 221, makes burning more cmpletely.
Embodiment bis-
As shown in Figure 3 and Figure 4, the first mixing chamber 24 belows of the present invention are provided with air plenum 26, and described air plenum 26 is communicated with Air pressurizer 3, and described air duct 23 lower ends are communicated with air plenum 26.To the present embodiment specifically, described the first mixing chamber 24 and air plenum 26 become separate chamber separately, described air plenum 26 is separately for air duct 23 provides air, described the first mixing chamber 24 becomes independently large mixing chamber, now the second mixing chamber 222 can retain also and can omit, slow lower port of pressing dividing plate 223 to be arranged at cylindrical shell 22 when omission, the slow dividing plate of pressing is respectively combustion chamber 221 and the first mixing chamber 24 in both sides Shang Xia 223, if when the air flux in cylindrical shell 22 needs maximum, the slow dividing plate 223 of pressing is also omitted, now combustion chamber 221 is directly communicated with the first mixing chamber 24.In the present embodiment, the spout 251 of Gas Pipe 25 can be arranged near the pressurized air entrance of the first mixing chamber 24, and at interior first spoiler 241 that arranges of the first mixing chamber 24.Arrange like this, can make combustion gas and air more even in the interior mixing of the first mixing chamber 24, be more conducive to abundant burning.
The embodiment of the present embodiment other parts and principle are identical with embodiment mono-, are not repeated in this description herein.
Embodiment tri-
As shown in Figure 5 and Figure 6, in burner shell 21 of the present invention, be set side by side with multiple cylindrical shells 22.With regard to the present embodiment particularly, multiple cylindrical shells 22 are evenly distributed in burner shell 21, and each cylindrical shell 22 peripheries are provided with some air ducts 23, and described the second chuck 27 surrounds all cylindrical shells 22; In each cylindrical shell 22 with together arrangement of sample plot combuster 222, burner plate 225, slow dividing plate 223, the second mixing chamber 222, the second spoiler 226 of pressing of embodiment.The setting of the multiple cylindrical shells 22 of the present embodiment can make burner on larger cross section, export more balanced heat, also can be controlled the fuel gas pipeline of each cylindrical shell 22 according to the demand of calory burning.
The embodiment of the present embodiment other parts and principle are identical with embodiment bis-with embodiment mono-, are not repeated in this description herein.
Embodiment tetra-
As shown in Figure 7 and Figure 8, air duct 23 of the present invention is arranged on the inside of cylindrical shell 22.With regard to the present embodiment, as shown in Figure 7, described air duct 23 is through the burner plate 225 in cylindrical shell 22 and spoiler 226 and the middle slow dividing plate 223 of pressing, and upper end is communicated with heating chamber 14, and lower end is communicated with the first mixing chamber 24; As shown in Figure 8, described air duct 23 is through the burner plate 225 in cylindrical shell 22 and the slow dividing plate 223 of pressing, and upper end is communicated with heating chamber 14, and lower end is communicated with air plenum Room 26.The present embodiment can reduce the setting of air duct 23.
The embodiment of the present embodiment other parts and principle are identical with embodiment mono-to embodiment tri-, are not repeated in this description herein.
Though the present invention explains with regard to preferred embodiment, be skillful in this skill person and can do various multi-form changes not departing under the present invention spirit and category.Above illustrated embodiment is only in order to the present invention to be described, non-in order to limit the present invention's scope.Such as do not disobey various modifications or the variation that spirit of the present invention is engaged in, all categories that this invention is intended to protection that belongs to.
Claims (12)
1. burner for gas boiler, comprise boiler body (1) and burner body (2), it is characterized in that: described boiler body (1) comprises boiler shell (11), in described boiler shell (11), form heating chamber (14), boiler shell (11) is provided with floss hole (12), and described floss hole (12) is communicated with heating chamber (14), described burner body (2) comprises burner shell (21), described burner shell (21) internal upper part is provided with cylindrical shell (22), the interior bottom of burner shell (21) forms the first mixing chamber (24), described cylindrical shell (22) internal upper part is combustion chamber (221), the interior bottom of cylindrical shell (22) is the second mixing chamber (222), described combustion chamber (221) is communicated with heating chamber (14), described the second mixing chamber (222) is communicated with the first mixing chamber (24), between described combustion chamber (221) and the second mixing chamber (222), be provided with the slow dividing plate (223) of pressing, slow pressure on dividing plate (223) is provided with and delays pressure through hole (224), described the second mixing chamber (222) is communicated with by the slow through hole (224) of pressing with combustion chamber (221), in described combustion chamber (221), be provided with the burner plate (225) with some burner ports (220), the inside of described cylindrical shell (22) or periphery are provided with some air ducts (23), the upper end of described air duct (23) is communicated with heating chamber (14), the lower end of air duct (23) is communicated with air-source, described the first mixing chamber (24) is connected with Gas Pipe (25) and Air pressurizer (3), described burner shell (21) is connected mutually with boiler shell (11).
2. burner for gas boiler according to claim 1, it is characterized in that: the lower end of described air duct (23) is communicated with the first mixing chamber (24), described Gas Pipe (25) the inner is provided with spout (251), and described spout (251) is aimed at the second mixing chamber (222).
3. burner for gas boiler according to claim 1, it is characterized in that: described the first mixing chamber (24) below is provided with air plenum (26), described air plenum (26) is communicated with Air pressurizer (3), and described air duct (23) lower end is communicated with air plenum (26).
4. according to the arbitrary described burner for gas boiler of claims 1 to 3, it is characterized in that: between described combustion chamber (221) and the second mixing chamber (222), be directly communicated with by the inwall of cylindrical shell (22).
5. burner for gas boiler according to claim 3, it is characterized in that: described slow pressure dividing plate (223) is arranged at the lower port of cylindrical shell (22), the both sides up and down of described slow pressure dividing plate (223) are respectively combustion chamber (221) and the first mixing chamber (24).
6. burner for gas boiler according to claim 5, it is characterized in that: described combustion chamber (221) are directly communicated with the first mixing chamber (24), the downside of described burner plate (225) is the first mixing chamber (24).
7. according to the arbitrary described burner for gas boiler of claim 1 to 6, it is characterized in that: described cylindrical shell (22) is located at the middle position of burner shell (21) internal upper part; Described burner plate (225) is located at middle part or the upper and lower two-port of combustion chamber (221), and the outer of described burner plate (225) is closely connected with cylindrical shell (22).
8. according to the arbitrary described burner for gas boiler of claim 1 to 7, it is characterized in that: in described burner shell (21), be set side by side with multiple cylindrical shells (22).
9. according to the arbitrary described burner for gas boiler of claim 1 to 8, it is characterized in that: in described boiler shell (11), be provided with the first chuck (13), described the first chuck (13) is provided with the first water inlet (131) and the first delivery port (132), described the first water inlet (131) and the first delivery port (132) all with airtight connection of the first chuck (13), in described burner shell (21), be provided with the second chuck (27), described the second chuck (27) surrounds described cylindrical shell (22), described the second chuck (27) is provided with the second water inlet (271) and the second delivery port (272), described the second water inlet (271) and the second delivery port (272) all with airtight connection of the second chuck (27), described the first delivery port (132) with the second water inlet (271) by airtight connection of pipeline (15), between described the first water inlet (131) and the second delivery port (272) by the first chuck (13) and airtight connection of the second chuck (27).
10. according to the arbitrary described burner for gas boiler of claim 1 to 8, it is characterized in that: described boiler shell (11) is wholely set with burner shell (21), in described boiler shell (11), be provided with the first chuck (13), described the first chuck (13) is provided with the first water inlet (131), described the first water inlet (131) and airtight connection of the first chuck (13); In described burner shell (21), be provided with the second chuck (27), described the second chuck (27) surrounds described cylindrical shell (22), described the second chuck (27) is provided with the second delivery port (272), described the second delivery port (272) and airtight connection of the second chuck (27), between described the first water inlet (131) and the second delivery port (272) by the first chuck (13) and airtight connection of the second chuck (27).
11. according to burner for gas boiler described in claim 2 or 3, it is characterized in that: in described the second mixing chamber (222), be provided with the second spoiler (226).
12. burner for gas boiler according to claim 3, is characterized in that: in described the first mixing chamber (24), be provided with the first spoiler (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374383.9A CN104132341B (en) | 2014-07-07 | 2014-07-30 | Gas boiler burner |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321633.2 | 2014-07-07 | ||
| CN201410321633 | 2014-07-07 | ||
| CN2014103216332 | 2014-07-07 | ||
| CN201410374383.9A CN104132341B (en) | 2014-07-07 | 2014-07-30 | Gas boiler burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132341A true CN104132341A (en) | 2014-11-05 |
| CN104132341B CN104132341B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374383.9A Active CN104132341B (en) | 2014-07-07 | 2014-07-30 | Gas boiler burner |
Country Status (1)
| Country | Link |
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| CN (1) | CN104132341B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805947A (en) * | 2016-05-13 | 2016-07-27 | 宁波多贝机械实业有限公司 | All-premixed combustion heat exchange device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3650139A1 (en) | 2018-11-08 | 2020-05-13 | Linde Aktiengesellschaft | Burner module and method for manufacturing such a burner module using generative methods |
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| CN101571293A (en) * | 2008-04-28 | 2009-11-04 | 于治华 | High-efficiency honeycomb cyclone type combustor |
| JP2010516988A (en) * | 2007-01-19 | 2010-05-20 | キョントン ナビエン カンパニー リミテッド | Gas boiler burner |
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| CN202290019U (en) * | 2011-09-03 | 2012-07-04 | 金能科技股份有限公司 | Novel gas alkali smelting furnace |
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| CN103075726A (en) * | 2012-09-05 | 2013-05-01 | 伍镜清 | Burner capable of producing multiple burning working condition characteristics |
| CN204329009U (en) * | 2014-07-07 | 2015-05-13 | 宁波多贝机械实业有限公司 | Burner for gas boiler |
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| US4887963A (en) * | 1988-03-21 | 1989-12-19 | Chaffoteaux Et Maury | Gas burners |
| CN2454643Y (en) * | 2000-11-29 | 2001-10-17 | 李永福 | Pre-mixing type combustion apapratus |
| JP2010516988A (en) * | 2007-01-19 | 2010-05-20 | キョントン ナビエン カンパニー リミテッド | Gas boiler burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105805947A (en) * | 2016-05-13 | 2016-07-27 | 宁波多贝机械实业有限公司 | All-premixed combustion heat exchange device |
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| Publication number | Publication date |
|---|---|
| CN104132341B (en) | 2017-01-18 |
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