CN109404904A - Burner and gas heater - Google Patents
Burner and gas heater Download PDFInfo
- Publication number
- CN109404904A CN109404904A CN201710704408.0A CN201710704408A CN109404904A CN 109404904 A CN109404904 A CN 109404904A CN 201710704408 A CN201710704408 A CN 201710704408A CN 109404904 A CN109404904 A CN 109404904A
- Authority
- CN
- China
- Prior art keywords
- burner
- flame portion
- injector
- cavity
- combustion
- 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.)
- Pending
Links
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
- F23D14/08—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 with axial outlets at the burner head
-
- 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
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
Abstract
The invention discloses a kind of burner and gas heaters, wherein the burner includes fire row, and the fire row includes flame portion interconnected and injector；The flame portion includes the open cavity of one side and the combustion panel that the open-mouth is arranged in；The injector includes connecting plate and at least two ejector pipes that are arranged on the connecting plate, and at least two ejector pipes are connected with the cavity.Since single injector has at least two ejector pipes in burner and gas heater proposed by the present invention, this makes the quantity of air inlet more, the ability of combustion gas injection air increases, and then the air content for entering injector increases, after air and combustion gas are thoroughly mixed in the cavity, pin mark combustion is ignited at combustion panel, combustion gas is fully burned, to reduce the generation of nitrogen oxides, while improving the thermal efficiency.
Description
Technical field
The present invention relates to gas utensil technical field more particularly to a kind of burners and gas heater.
Background technique
Currently, civilian burner is widely used in each family, such as the household supplies such as gas-cooker, wall-hung boiler, it is existing
Wall-hung boiler be one kind using combustion gas as main energy sources, the heating of cosy house and the housed device of domestic hot-water are provided,
Wall-hung boiler heating has powerful central-heating system, is able to satisfy the requirement in more rooms, and what wall-hung boiler was just becoming Chinese family must
Want equipment.
It is well known that the burner in wall-hung boiler is to be related to the critical component of wall-hung boiler performance and efficiency, existing burner
Structure type be generally grate-type structure, burner head uses harmonica-type structure, enables combustion gas in entire burner
It is uniformly sprayed in plane, forms uniform temperature field after ignition, the high-temperature flue gas that fuel gas buring generates will be in main heat exchanger
Heating system water heating, positioned at burner top turbulent baffle can prevent burning after hot-air be expelled directly out outside machine, increase
The heat exchanger meeting of air is heated, exhaust gas temperature is reduced, the thermal efficiency is improved, but in the actual work, due to combustion gas in burner
It burns insufficient, the comparision contents for the nitrogen oxides that flue gas contains are high, cause larger pollution to environment.
Summary of the invention
The main purpose of the present invention is to provide a kind of burner and gas heaters, it is intended to solve due to burner internal combustion
The technical issues of gas burning is insufficient, and the comparision contents for the nitrogen oxides that flue gas contains are high, causes larger pollution to environment.
To achieve the above object, burner provided by the invention includes fire row, and the fire row includes flame interconnected
Portion and injector；The flame portion includes the open cavity of one side and the combustion panel that the open-mouth is arranged in；It is described to draw
Emitter includes connecting plate and at least two ejector pipes that are arranged on the connecting plate, at least two ejector pipes and the chamber
Body is connected.
Preferably, the flame portion is connect at least two injectors, and described in at least two of the injector
Ejector pipe is connected with the cavity.
Preferably, at least two injector parallel side-by-side setting.
Preferably, the quantity of the fire row is at least two, at least two fire row parallel side-by-side settings.
Preferably, the ejector pipe includes the ejecting port and diffuser of supplied gas circulation, the ejecting port and the diffusion
It is connected between section by mixing section, the exit of the diffuser, and the cavity and the diffusion is arranged in the flame portion
Section is connected.
Preferably, the burner further includes nozzle, and the nozzle is arranged in a one-to-one correspondence with the ejecting port.
Preferably, the burner further includes sealing strip and pressing plate, and the sealing strip is arranged in the flame portion backwards to institute
It states on open side, the end of the diffuser is provided with flange, and the flange is arranged in the sealing strip and the pressing plate
Between, the pressing plate is fixedly connected with the flame portion.
Preferably, the burner further includes fixing piece, and the open-mouth in the flame portion is formed with step, the combustion front
Plate is fixed on the step by the fixing piece.
Preferably, the combustion panel is metal mesh or the ceramic wafer with honeycomb hole, and is provided on the combustion panel
Catalyst.
To achieve the above object, the present invention also provides a kind of gas heater, the gas heater includes such as above-mentioned
Burner described in one.
In technical solution proposed by the present invention, be provided in single fire row flame portion with cavity and at least two with
The ejector pipe that the cavity is connected, combustion gas and air enter flame portion from ejector pipe, due to the cavity in flame portion be one compared with
Closed space, combustion gas and air are mixed in the cavity and are ignited in combustion panel.Since single injector has at least two
A ejector pipe, this makes the quantity of air inlet more, and the ability of combustion gas injection air increases, and then the air for entering injector contains
After amount increase, air and combustion gas are thoroughly mixed in the cavity, pin mark combustion is ignited at combustion panel, combustion gas obtains sufficiently
Burning, to reduce the generation of nitrogen oxides, while improving the thermal efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the main view of burner in one embodiment of the invention；
Fig. 2 is the side view of Fig. 1 burner in the first embodiment；
Fig. 3 is the top view of Fig. 1 burner in the first embodiment；
Fig. 4 is the side view of Fig. 1 burner in a second embodiment；
Fig. 5 is the top view of Fig. 1 burner in a second embodiment.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Flame portion | 222 | Mixing section |
| 11 | Cavity | 223 | Diffuser |
| 111 | Step | 224 | Flange |
| 12 | Combustion panel | 3 | Sealing strip |
| 2 | Injector | 4 | Pressing plate |
| 21 | Connecting plate | 5 | Screw |
| 22 | Ejector pipe | 6 | Fixing piece |
| 221 | Ejecting port |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It in addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of burner.
Fig. 1 to Fig. 3 is please referred to, in the present embodiment, which includes fire row, and the fire row includes spray interconnected
Fiery portion 1 and injector 2；The flame portion 1 includes the open cavity 11 of one side and the combustion panel that the open-mouth is arranged in
12；The injector 2 includes connecting plate 21 and at least two ejector pipes 22 being arranged on the connecting plate 21, at least two institutes
Ejector pipe 22 is stated to be connected with the cavity 11.
In technical solution proposed by the present invention, the flame portion 1 with cavity 11 and at least two are provided in single fire row
A ejector pipe 22 being connected with the cavity 11, combustion gas and air enter flame portion 1 from ejector pipe 22, due in flame portion 1
Cavity 11 is a more closed space, and combustion gas and air are mixed in cavity 11 and be ignited in combustion panel 12.Due to list
A injector 2 has at least two ejector pipes 22, this makes the quantity of air inlet more, and the ability of combustion gas injection air increases,
Enter the air content increase of injector 2 in turn, after air and combustion gas are thoroughly mixed in cavity 11, in combustion panel 12
Place is ignited pin mark combustion, and combustion gas is fully burned, to reduce the generation of nitrogen oxides, while improving the thermal efficiency.
In the prior art, burner reduces nitrogen oxygen frequently with the deep or light structure of strong drum horizontal injection or water-cooled structure
The generation of compound, but the drum deep or light structure of horizontal injection is needed using blower etc. by force, material cost is higher；Water-cooled structure needs
It to use heat conducting pipe to pass through several fire rows, cause the overall dimensions of burner larger, material cost is also higher.Using the present invention
The technical solution of proposition, it is only necessary on the basis of 2 existing structure of injector, increase the quantity of ejector pipe 22, and use has
The flame portion 1 of cavity 11 replaces existing plate fiery out, and compared with both the above mode, the overall dimensions of burner are smaller,
Material cost is lower.
It should be noted that the injector 2 can be manufactured by way of pressing, wherein be arranged on connecting plate 21
It is connected by way of spot welding between at least two injectors 2, and the edge of connecting plate 21 is subjected to bound edge processing.
As the preferred embodiment of the present invention, the flame portion 1 is connect at least two injectors 2, and described
The ejector pipe 22 of at least two of injector 2 is connected with the cavity 11.Inside burner and gas appliance
Exact arrangement can accordingly select the flame portion 1 of suitable shape, be illustrated with the direction in length and breadth of Fig. 2, when the cross in flame portion 1
When longer to direction, at least two injectors 2 can be arranged on same straight line, realize multiple ejector pipes 22 and flame portion 1
Cavity 11 be connected；When the longitudinal direction in flame portion 1 is longer, at least two injectors, 2 parallel side-by-side can be arranged.With
Under at least two injectors, 2 parallel side-by-side be arranged the case where be illustrated.
Referring to figure 2. and Fig. 3, in this embodiment, burner is the structure of double 6 air inlets, is arranged in single fire row
There are two injectors 2 of parallel side-by-side setting, there are three ejector pipe 22, single fire rows a total of six for setting on each injector 2
A ejecting port 221, i.e. air inlet.Referring to figure 4. and Fig. 5, in this embodiment, burner is the structure of three 9 air inlets of row,
Three injectors 2 of parallel side-by-side setting are provided in single fire row, there are three ejector pipes 22 for setting on each injector 2, single
A a total of nine ejecting ports 221 of fire row, i.e. air inlet.Single fire row is equipped with multiple Verticle air-adjusting devices 2 arranged in parallel,
And Verticle air-adjusting device 2 is equipped with multiple ejector pipes 22, is greatly improved ejector capacity, structure is simple, easily manufactured, cost
Low, conformability is strong, and the thermal efficiency and thermic load not only can be improved in full premix combustion, can also improve using the burner
Gas appliance quality and service index, and be able to satisfy the requirement of complete machine low-nitrogen oxide discharging.
Certainly, burner is also possible to be provided with an injector in the structure of single multiple spot air inlet, namely single fire row
2, multiple ejector pipes 22 are provided on the injector 2.
It is appreciated that in the burner, the quantity of the fire row is at least two, specifically, at least two fire rows
Parallel side-by-side setting.The increase of fire row quantity can be played the role of heating rapidly so that the area of combustion boundary is increase accordingly.
If gas heater can achieve the use water effect of instant-heating by the burner application in gas heater.It can manage
Solution, in the burner can be only with one when the single fire row for being provided with multiple injectors 2 can generate enough heats
A fire row.
Referring once again to Fig. 1 and Fig. 2, the ejector pipe 22 includes the ejecting port 221 and diffuser 223 of supplied gas circulation,
It is connected between the ejecting port 221 and the diffuser 223 by mixing section 222, the flame portion 1 is arranged in the diffuser
223 exit, and the cavity 11 is connected with the diffuser 223.Combustion gas is sprayed through gas pipeline from nozzle by gas valve
Each ejecting port 221 is injected, combustion gas is after mixing section 222 mixes primary air through spraying into the cavity in flame portion 1 by diffuser 223
11, and spray and burn from combustion panel 12.Ejector pipe 22 can T-shaped or tobacco pipe type, the ejector pipe 22 of tobacco pipe type is usually used in by force
The drum deep or light structure of horizontal injection.In the present invention, it is preferred to which the ejector pipe 22 of T-type, occupies little space, and due to ejector pipe
22 be vertical structure, is conducive to the arrangement of fire row and nozzle, furthermore it is possible to increase the length of mixing section 222 in right amount, is conducive to
The premixing effect for improving combustion gas and air, it is more abundant to be conducive to fuel gas buring.
The burner further includes nozzle (not shown), and the nozzle is arranged in a one-to-one correspondence with ejecting port 221.It can on burner
Jet long tube is set, and jet long tube is connected to gas pipeline, and jet long tube is equipped with multiple nozzles, and a nozzle is one corresponding
Ejecting port 221 is arranged.Since in the present invention, the ejecting port 221 in single fire row increases, allow the aperture of nozzle corresponding
Reduce.Described below, in the prior art, the ejecting port 221 in single fire row is one, and the bore of ejecting port 221 is larger,
The aperture of nozzle is also corresponding larger, such as 1.2mm, in the present invention, is said with the structure that burner is single 3 air inlets
It is bright, since the ejecting port 221 in single fire row is three, then the aperture for the nozzle that corresponding ejecting port 221 is arranged only needs
0.4mm.When the aperture of nozzle is smaller, the flow velocity that combustion gas is sprayed from nozzle is faster, is conducive to the more primary airs of injection and carries out
It is combustion-supporting, to promote the completely burned of combustion gas.
Referring to figure 2., which further includes sealing strip 3 and pressing plate 4, and the setting of sealing strip 3 is carried on the back in the flame portion 1
To on the side of the opening, the end of the diffuser 223 is provided with flange 224, and the flange 224 is arranged in the sealing
Between item 3 and the pressing plate 4, the pressing plate 4 is fixedly connected with the flame portion 1.It is understood that diffuser 223 and chamber
It needs to be tightly connected between body 11, combustion gas and air is avoided to leak outside.There are many sealed connection modes, for example, the side of diffuser 223
The side wall of wall and cavity 11 realizes that sealing is fixed by laser welding；Alternatively, injector 2 and flame portion 1 are integrally formed；Alternatively,
It injector 2 is detachably fixed with flame portion 1 connect by using screw 5 or the mode for snapping connection pressing plate 4 and flame portion 1,
Be conducive to the maintenance of burner, and be provided with sealing strip 3 between flange 224 and the side wall in flame portion 1, it is ensured that combustion gas
It will not leak outside with air.
In one embodiment of the present invention, the burner further includes fixing piece 6, the open-mouth shape in the flame portion 1
At there is step 111, the combustion panel 12 is fixed on the step 111 by the fixing piece 6.In 1 cavity 11 of flame portion
The mixed gas of combustion gas and air is sprayed from the through-hole on combustion panel 12, and is arranged on the ignition electrode of 12 top of combustion panel
It lights, the flat of combustion panel 12 can be guaranteed by combustion panel 12 of 6 fixed placement of fixing piece on 1 step 111 of flame portion
Whole degree, to guarantee the stability of flame.
Further, the combustion panel 12 is metal mesh or the ceramic wafer with honeycomb hole, and on the combustion panel 12
It is provided with catalyst.Certainly, combustion panel 12 can also select other high temperature resistants, corrosion-resistant material.On combustion panel 12
Addition catalyst can restore nitrogen oxides, to reduce the content of nitrogen oxides in effluent.
The present invention also proposes a kind of gas heater, which includes the burning such as above-mentioned any embodiment
Device.The specific structure of the burner is referring to above-described embodiment, since this gas heater uses the complete of above-mentioned all embodiments
Portion's technical solution, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, herein no longer one by one
It repeats.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of burner, which is characterized in that including fire row, the fire row includes flame portion interconnected and injector；Institute
Stating flame portion includes the open cavity of one side and the combustion panel that the open-mouth is arranged in；The injector includes connecting plate
With at least two ejector pipes being arranged on the connecting plate, at least two ejector pipes are connected with the cavity.
2. burner as described in claim 1, which is characterized in that the flame portion is connect at least two injectors,
And at least two ejector pipes of the injector are connected with the cavity.
3. burner as claimed in claim 2, which is characterized in that at least two injector parallel side-by-side settings.
4. burner as claimed in claim 3, which is characterized in that the quantity of the fire row is at least two, at least two institutes
State the setting of fire row parallel side-by-side.
5. burner according to any one of claims 1-4, which is characterized in that the ejector pipe includes drawing for supplied gas circulation
Loophole and diffuser are connected between the ejecting port and the diffuser by mixing section, and the flame portion is arranged in the expansion
The exit of section is pressed, and the cavity is connected with the diffuser.
6. burner as claimed in claim 5, which is characterized in that the burner further includes nozzle, the nozzle with it is described
Ejecting port is arranged in a one-to-one correspondence.
7. burner as claimed in claim 5, which is characterized in that the burner further includes sealing strip and pressing plate, described close
The flame portion is arranged on the side of the opening in strip of paper used for sealing, and the end of the diffuser is provided with flange, the flange
It is arranged between the sealing strip and the pressing plate, the pressing plate is fixedly connected with the flame portion.
8. burner according to any one of claims 1-4, which is characterized in that the burner further includes fixing piece, described
The open-mouth in flame portion is formed with step, and the combustion panel is fixed on the step by the fixing piece.
9. burner as claimed in claim 8, which is characterized in that the combustion panel is metal mesh or the ceramics with honeycomb hole
Plate, and catalyst is provided on the combustion panel.
10. a kind of gas heater, which is characterized in that the gas heater includes as claim 1-9 is described in any item
Burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704408.0A CN109404904A (en) | 2017-08-16 | 2017-08-16 | Burner and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704408.0A CN109404904A (en) | 2017-08-16 | 2017-08-16 | Burner and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404904A true CN109404904A (en) | 2019-03-01 |
Family
ID=65454733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710704408.0A Pending CN109404904A (en) | 2017-08-16 | 2017-08-16 | Burner and gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404907A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0959300A2 (en) * | 1998-05-19 | 1999-11-24 | Robert Bosch Gmbh | Method and device for operating an atmospheric, in particular a fully premixed gas burner |
| JP2001099408A (en) * | 1999-09-29 | 2001-04-13 | Rinnai Corp | Gas burner unit |
| CN101191615A (en) * | 2006-11-30 | 2008-06-04 | 林内株式会社 | All primary combustion burner |
| CN204227677U (en) * | 2014-11-05 | 2015-03-25 | 广东万和新电气股份有限公司 | Gas-heating water heater |
| CN106642109A (en) * | 2017-01-27 | 2017-05-10 | 黄婉平 | Low nitrogen oxide burner of fuel gas heating water heater |
| CN207438581U (en) * | 2017-08-16 | 2018-06-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
-
2017
- 2017-08-16 CN CN201710704408.0A patent/CN109404904A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0959300A2 (en) * | 1998-05-19 | 1999-11-24 | Robert Bosch Gmbh | Method and device for operating an atmospheric, in particular a fully premixed gas burner |
| JP2001099408A (en) * | 1999-09-29 | 2001-04-13 | Rinnai Corp | Gas burner unit |
| CN101191615A (en) * | 2006-11-30 | 2008-06-04 | 林内株式会社 | All primary combustion burner |
| CN204227677U (en) * | 2014-11-05 | 2015-03-25 | 广东万和新电气股份有限公司 | Gas-heating water heater |
| CN106642109A (en) * | 2017-01-27 | 2017-05-10 | 黄婉平 | Low nitrogen oxide burner of fuel gas heating water heater |
| CN207438581U (en) * | 2017-08-16 | 2018-06-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404907A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
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