CN208871621U - A kind of gas heater and its burner - Google Patents
A kind of gas heater and its burner Download PDFInfo
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- CN208871621U CN208871621U CN201821154328.9U CN201821154328U CN208871621U CN 208871621 U CN208871621 U CN 208871621U CN 201821154328 U CN201821154328 U CN 201821154328U CN 208871621 U CN208871621 U CN 208871621U
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- injector
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Abstract
The utility model relates to technical field of water heaters, disclose a kind of gas heater and its burner, the burner includes injector and orifice, the injector interior parallel offers at least two mutual disconnected combustion gas mixing channels, one end of the injector is equipped at least two and corresponds the perforation being connected with each combustion gas mixing channel respectively, the other end of the injector is equipped at least two and corresponds the spray-hole being connected with each combustion gas mixing channel respectively, the orifice covers at the end that the injector corresponds to the spray-hole, correspond at the spray-hole on the orifice and offers several fire holes.The utility model has the following beneficial effects: can increase combustion gas service efficiency by being provided with more than two and mutual disconnected combustion gas mixing channel in single burner, realize low NOX, CO discharge, and can be realized single burner zoned firing, effectively increase load regulation rate.
Description
Technical field
The utility model relates to technical field of water heaters, a kind of gas heater and its burner are disclosed.
Background technique
In the prior art, most water heater manufacturers are all using air suspended type ordinary burner, burning therein
Device is set as single injector channel, NO in combustion productXDischarge amount can not have always been high any more, NOXFor toxic gas, not only to body
Injury is generated, while having and atmosphere is polluted, as European EN26 standard will be enforced, exported product must satisfy low
NOXEmission request, the burner of ordinary construction are difficult to solve low NOXDemand, to constrain the strategy of company to a certain extent
Growth requirement；Meanwhile the burner CO discharge value of ordinary construction is relatively high, cannot achieve zero-emission or low emission requirement, is
National energy conservation and emission reduction policy is responded, water heater realizes that low pollution emission becomes future developing trend；Furthermore gas heater at present
Minimum input load it is bigger than normal always, cause product summer using when because lowest temperature rise is excessively high apply family cannot achieve it is desired
Low temperature bathing temperature, has seriously affected user experience.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of gas heater and its burner, heat are provided
Hydrophone can be realized low NOX, CO discharge, realize in green emissions, and can be realized single burner zoned firing, effectively increase
Load regulation rate.
To achieve the goals above, the first aspect of the utility model provides a kind of burner comprising injector and fire
Orifice plate, the injector interior parallel offer at least two mutual disconnected combustion gas mixing channels, one end of the injector
The perforation being connected, the other end of the injector are corresponded with each combustion gas mixing channel respectively equipped at least two
The spray-hole being connected is corresponded with each combustion gas mixing channel respectively equipped at least two, the orifice covers at institute
The end that injector corresponds to the spray-hole is stated, corresponds at the spray-hole on the orifice and offers several fire holes.
Preferably, the periphery that the injector is located at the combustion gas mixing channel is provided with Cooling Water circulation
Water stream channel, the water stream channel are arranged close to the spray-hole.
Preferably, the combustion gas mixing channel is integrally " T " shape, and the combustion gas mixing channel is along airflow direction packet
Include air-breathing contraction section, mixing section, the diffuser being sequentially communicated；The air-breathing contraction section is the taper gradually tapered up along airflow direction
Shape, the cross-sectional area of the entrance of the air-breathing contraction section are 3-6 times of its cross-sectional area exported, and the mixing section is along gas
The cross-sectional area in stream direction becomes larger, and the cross-sectional area of the outlet of the mixing section is the cross-sectional area of its entrance
2-5 times, the diffuser goes out along airflow direction entirety triangular shape, the cross-sectional area of the entrance of the diffuser less than it
The cross-sectional area of mouth, and the interlude of the diffuser is provided with contraction mouth.
Preferably, the cross-sectional area of the entrance of the air-breathing contraction section is the 4 of its cross-sectional area exported
Times, the cross-sectional area of the outlet of the mixing section is 3 times of the cross-sectional area of its entrance.
Preferably, the air-breathing contraction section, the mixing section, the diffuser are distinguished along the length of airflow direction
It is set as A, B, C, wherein B > C > A, B are 3-6 times of A, and B is 1.5-3.5 times of C.
Preferably, the surface of the orifice is provided with catalyst.
Preferably, the injector connected in opposite directions after its center line doubling by the first shell of symmetrical configuration and
At the side of the first shell line at its center is equipped at least two first indents, and the first shell is at its center
The other side of line is equipped at least two and each first indent corresponding second indent one by one, after the first shell doubling
Opposite first indent and second indent constitute the combustion gas mixing channel.
Preferably, the injector is assembled in opposite directions by the identical second shell of structure and third shell, institute
Second shell is stated equipped at least two third indents, the third shell is equipped at least two and each third indent one
One corresponding 4th indent, the opposite third indent and the 4th indent constitute the combustion gas mixing channel.
Preferably, the injector is provided with outwardly extending flange close to the end of the spray-hole, described
The edge of orifice is provided with card slot, and the flange cooperation, which is inserted in the card slot, connects the orifice and the injection
Device.
Same target, the second aspect of the utility model propose a kind of gas heater comprising any of the above-described
The burner.
The utility model provides a kind of burner and the gas heater comprising this burner, offers at least in burner
Two mutual disconnected combustion gas mixing channels, it is corresponding to be provided at least two relatively independent perforations, combustion gas injection air
Ability increase, to keep fuel gas buring more abundant, can reduce NO in combustion processX, CO discharge；While, it can be achieved that
Single injector sectional combustion, can effectively increase load regulation rate, realize the burning of small fire seedling, finally meet client to bathing temperature
Various requirement.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of burner in the utility model embodiment；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the structural schematic diagram that a kind of injector dismantles after tiling in the utility model embodiment.
In figure, 10, injector；11, combustion gas mixing channel；111, perforation；112, spray-hole；113, air-breathing contraction section；
114, mixing section；115, diffuser；115a, contraction mouth；12, water stream channel；13, first shell；131, the first indent；132,
Two indents；133, the 5th indent；134, flanging；14, positioning convex platform；15, mounting hole；16, threaded hole；14, flange；20, fire hole
Plate；21, fire hole；22, card slot.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.It should be understood that using term in the utility model
" first ", " second " etc. describe various information, but these information should not necessarily be limited by these terms, these terms are only used to will be same
The information of type is distinguished from each other out.For example, " first " information can also be claimed in the case where not departing from the scope of the utility model
Similar for " second " information, " second " information can also be referred to as " first " information.
As Figure 1-Figure 4, a kind of burner that the embodiment of the utility model first aspect proposes comprising injection
Device 10 and orifice 20,10 interior parallel of injector offer at least two mutual disconnected combustion gas mixing channels 11, institute
The one end for stating injector 10 is equipped at least two and corresponds the perforation being connected with each combustion gas mixing channel 11 respectively
111, the other end of the injector 10, which is equipped at least two and corresponds respectively with each combustion gas mixing channel 11, to be connected
Spray-hole 112, the orifice 20 cover at the injector 10 correspond to the spray-hole 112 end, the fire hole
Correspond at the spray-hole 112 on plate 20 and offers several fire holes 21.Illustratively, it is set in the injector 10 in the present embodiment
The combustion gas mixing channel 11 there are two setting, two combustion gas mixing channels 11 are independent mutually, and offer 111 He of perforation respectively
Spray-hole 112.When normal work, combustion gas enters combustion gas mixing channel 11 from perforation 111, and due to Venturi tube principle, combustion
Gas makes air introduce combustion gas mixing channel 11 from perforation 111, combustion gas and air in combustion gas mixing channel 11 after evenly mixing,
It is sprayed from spray-hole 112, air-gas mixture is in 21 upper stabilizer homogenous combustion of fire hole.
Injector 10 in the utility model be provided at least two groups be not connected to each other, mutually independent combustion gas mixing channel
11, be correspondingly provided with combustion gas mixing channel 11 corresponding perforation 111 and spray-hole 112 one by one, draw due to increasing
The quantity of perforation 111, under normal circumstances, can the more air of injection improve combustion gas and utilize to make combustion gas full combustion
Rate, thus to reduce NOX, CO discharge.On the other hand, the single burner in control burner assembly can be passed through
It is segmented small fire burning, improves the load regulation rate of burner assembly, lower water temperature is wanted with meeting user when taking a shower in summer
It asks；Assuming that the specified input load of each burner is 2KW, gas source is using municipal natural gas, the single burner of ordinary construction
Load regulation rate is 2:1, and the burner of the utility model can make individually to burn due to itself having the function of sectional burning
The load regulation rate of device accomplishes 4:1, therefore under identical input condition, and the burner of the utility model can allow water heater to produce water
Lowest temperature rise reduce 1 times, effectively promoted user's bath comfort.
Based on the above-mentioned technical proposal, a kind of burner is provided in the present embodiment, it is mixed that the injector 10 is located at the combustion gas
The periphery for closing channel 11 is provided with the water stream channel 12 of Cooling Water circulation, and the water stream channel 12 is close to the spray-hole
112 settings；By being provided with the water stream channel 12 in the attachment of spray-hole 112, can absorb in injector 10 due to burning
The ignition temperature of 21 combustion zone of fire hole is effectively reduced in the high heat of generation, so as to further decrease NOXProduction quantity, simultaneously
Since cold water absorbs the surface temperature of injector 10 in advance, fuel combustion energy loss is reduced, to effectively increase energy
Transformation efficiency effectively realizes energy-saving and emission-reduction.Illustratively, make water pipe be arranged in water flow by techniques such as expander or tube expansions to lead to
In road 12, can reasonable installation water pipe pass through cooling water, and can guarantee heat transmission and absorption.Illustratively, described
The two sides in combustion gas mixing channel 11 offer the water stream channel 12.
Specifically, in the present embodiment, the combustion gas mixing channel 11 is whole " T " shape, air-gas can be made uniformly to mix
It closes.
In the present embodiment, the combustion gas mixing channel 11 along airflow direction includes the air-breathing contraction section 113 being sequentially communicated, mixed
Close section 114, diffuser 115；The air-breathing contraction section 113 is the cone-shaped gradually tapered up along airflow direction, and the air-breathing is shunk
The cross-sectional area of the entrance of section 113 is 3-6 times of its cross-sectional area exported, using the design of contracted section, is effectively subtracted
Drag losses when small air enters, while use pattern Venturi tube principle allows the combustion gas of entrance in air-breathing contraction section 113
Outlet throat generates negative pressure, and negative pressure can preferably from the inlet of air-breathing contraction section 113, volume suck enters；In order to make combustion gas-
Air mixture is before entering diffuser 115, and velocity field, concentration field and temperature field are evenly distributed, the mixing section 114
Cross-sectional area along airflow direction becomes larger, and the cross-sectional area of the outlet of the mixing section 114 is the transversal of its entrance
2-5 times of face area；The diffuser 115 is along airflow direction entirety triangular shape, i.e., the described diffuser 115 is along its center
The longitudinal section splitted is integrally triangular in shape, and the cross-sectional area of the entrance of the diffuser 115 is less than the cross section face of its outlet
Product, and the interlude of the diffuser 115 is provided with contraction mouth 115a, diffuser 115 can be such that combustion gas further mixes with air
It closes uniformly, while part dynamic pressure being made to become static pressure, to improve the pressure of gas so that air-gas uniformly mixes, contraction mouth
115a can effectively deploy the flow velocity of the air-gas mixture in combustion gas mixing channel 11 uniform.
Preferably, in the present embodiment, in order to preferably be uniformly mixed air-gas, the air-breathing contraction section 113
The cross-sectional area of entrance be 4 times of cross-sectional area of its outlet.
Same purpose, in the present embodiment, it is preferable that the cross-sectional area of the outlet of the mixing section 114 is its entrance
3 times of cross-sectional area.
Further, for the purposes of being uniformly mixed air-gas mixture in combustion gas mixing channel 11, the air-breathing
Contraction section 113, the mixing section 114, the diffuser 115 are set to A, B, C along the length of airflow direction, wherein B > C
> A, B are 3-6 times of A, and B is 1.5-3.5 times of C.
Preferably, in the burner, the length of the mixing section 114 is 4 times of the air-breathing contraction section 113, described
The length of mixing section 114 is 2 times of the diffuser 115.
In the present embodiment, in order to realize stable burning, the fire hole 21 is uniformly arranged on the orifice 20, and described
The diameter of fire hole 21 is that 0.5-1.5 ㎜ size differs, can be by the air-gas mixture sprayed from spray-hole 112 equably
It is distributed in each fire hole 21, to carry out stable and complete burning.
Specifically, in the present embodiment, the surface of the orifice 20 is provided with catalyst, the catalyst be noble metal or
Person's transition metal hydride or transition metal oxide；Catalyst can effectively reduce the activation energy of air-gas mixture, together
When the molecule of mixture can be made to be enriched in the surface of orifice 20 again, to improve reaction speed, accelerate burn rate, borrow
Helping catalyst can make organic exhaust gas that flameless combustion occur under the conditions of lower initiation temperature, and oxygenolysis is CO2And H2O,
It realizes low CO even zero CO discharge, while releasing amount of heat, to achieve energy-saving and emission reduction purposes.
Specifically, specific multiple refering to Fig. 4 in the present embodiment, for the structural schematic diagram after the injector 10 expansion, institute
It states injector 10 to be formed by connecting in opposite directions after its center line doubling by the first shell 13 of symmetrical configuration, the first shell 13
At least two first indents 131 are equipped in the side of its center line, the other side of the first shell 13 line at its center is set
There are at least two and each first indent 131 corresponding second indent 132 one by one, it is opposite after 13 doubling of first shell
The first indent 131 and the second indent 132 constitute the combustion gas mixing channel 11, using integrally formed processing method processing draw
Emitter 10 can simplify processing.Illustratively, it is provided at the first shell 13 both sides of the edge adjacent with spray-hole 112
Flanging 134, for being snapped connection after 13 doubling of first shell.
As an alternative solution, the injector 10 can also it is opposite assembled by the identical second shell of structure and third shell and
At the second shell is equipped at least two third indents, and the third shell is equipped at least two and each third
Indent corresponding 4th indent one by one, when second shell and third shell assembly, the corresponding third indent and described
4th indent constitutes the combustion gas mixing channel 11.Similarly, the second shell and the third shell and the spray-hole
The edge of 112 adjacent two sides is also equipped with flanging 134 described above.
Illustratively, the injector 10 is using aluminium strip and/or copper strips and/or stainless steel band or other alloy material systems
At.
Illustratively, it in the present embodiment, is equipped in the both sides external face that the injector 10 is located at the diffuser 115
5th indent 133, outwardly, two opposite the 5th indents 133 are with mixed in the combustion gas for the opening of the 5th indent 133
It closes and constitutes the contraction mouth 115a in channel 11.
In the present embodiment, in order to which orifice to be seal-installed on to 112 end of spray-hole of injector 10, the injector 10 is leaned on
The end of the nearly spray-hole 112 is provided with outwardly extending flange 14, and the edge of the orifice 20 is provided with card slot 22,
The cooperation of flange 14 is inserted in the connection orifice 20 and the injector 10 in the card slot 22；Illustratively, will draw
Emitter 10 is achieved a fixed connection by riveting or spot welding or other techniques again after being connected in orifice 20.Illustratively, described
The edge of orifice 20 is equipped with bending edges to constitute the card slot 22.
Illustratively, in the present embodiment, the central axis of the perforation 111 and the end face of the spray-hole 112 are preferably in
90 ° of angle settings.Meanwhile when the burner application in utility model is in water heater type with blower air feed, the injection
Angle between the central axis in hole 111 and the end face of the spray-hole 112 is 0-90 DEG C.
Again as shown in fig.1, the two sides of the injector 10 are provided with positioning convex platform 14 in the present embodiment, burning
Device assembly is installed by multiple burner superpositions, and in assembling process, two adjacent burners pass through corresponding two
Positioning convex platform 14 abuts against carry out Primary Location, and the gap between each adjacent burners can be made to be consistent.Further, it is
Convenient for assembly, it is located at the positioning convex platform 14 on the injector 10 and offers mounting hole 15, when assembly, with connector point
Not Chuan Guo the mounting hole 15 on two neighboring injector 10 connect each burner, to assemble burner assembly.
Again refering to Fig. 4 it is found that the end face that the injector 10 is located at the perforation 111 is offered for installing wind deflector
Mounting portion, the two sides of each perforation 111 are provided with wind deflector.Illustratively, the mounting portion is described to be opened in
The threaded hole 16 of 111 two sides of perforation.
The embodiment of the utility model second aspect proposes a kind of gas heater comprising described in any of the above embodiments
Burner, gas heater provided by the utility model because including burner described in first aspect embodiment, therefore have upper
The whole beneficial effects for stating burner, do not do state one by one herein.
To sum up, the utility model embodiment provides a kind of gas heater and its burner, by setting in injector 10
More than two independent disconnected combustion gas mixing channels 11 are equipped with, can be improved combustion gas utilization rate, to reduce NOX, CO row
It puts；And single burner can realize sectional combustion function, can effectively increase load regulation rate, realize the burning of small fire seedling, meet visitor
Family summer requires water temperature bathing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of burner, which is characterized in that including injector (10) and orifice (20), injector (10) interior parallel
At least two mutual disconnected combustion gas mixing channels (11) are offered, one end of the injector (10) is equipped at least two difference
The perforation (111) being connected is corresponded with each combustion gas mixing channel (11), the other end of the injector (10) is set
There are at least two to correspond the spray-hole (112) being connected, the orifice with each combustion gas mixing channel (11) respectively
(20) end that the injector (10) correspond to the spray-hole (112) is covered at, corresponds to institute on the orifice (20)
It states and offers several fire holes (21) at spray-hole (112).
2. burner as described in claim 1, which is characterized in that the injector (10) is located at the combustion gas mixing channel
(11) periphery is provided with the water stream channel (12) of Cooling Water circulation, and the water stream channel (12) is close to the spray-hole
(112) it is arranged.
3. burner as claimed in claim 2, which is characterized in that the combustion gas mixing channel (11) is whole " T " shape, described
Combustion gas mixing channel (11) includes the air-breathing contraction section (113) being sequentially communicated, mixing section (114), diffuser along airflow direction
(115),
The air-breathing contraction section (113) is the cone-shaped gradually tapered up along airflow direction, the entrance of the air-breathing contraction section (113)
3-6 times of cross-sectional area for its outlet of cross-sectional area, cross-sectional area of the mixing section (114) along airflow direction
It becomes larger, the cross-sectional area of the outlet of the mixing section (114) is 2-5 times of the cross-sectional area of its entrance, the expansion
Press section (115) along airflow direction entirety triangular shape, the cross-sectional area of the entrance of the diffuser is less than the cross of its outlet
Area of section, and the interlude of the diffuser (115) is provided with contraction mouth (115a).
4. burner as claimed in claim 3, which is characterized in that the cross section face of the entrance of the air-breathing contraction section (113)
Product is 4 times of its cross-sectional area exported, and the cross-sectional area of the outlet of the mixing section (114) is the cross section of its entrance
3 times of area.
5. burner as claimed in claim 3, which is characterized in that the air-breathing contraction section (113), the mixing section (114),
The diffuser (115) is set to A, B, C along the length of airflow direction, wherein B > C > A, B are 3-6 times of A, and B is C's
1.5-3.5 again.
6. burner according to any one of claims 1 to 5, which is characterized in that the surface of the orifice (20) is provided with
Catalyst.
7. burner as claimed in claim 6, which is characterized in that the injector (10) by symmetrical configuration first shell
(13) it is formed by connecting in opposite directions after its center line doubling, the side of the first shell (13) line at its center is equipped at least two
The other side of a first indent (131), the first shell (13) line at its center is equipped at least two and each described first
Indent (131) corresponding second indent (132) one by one, opposite first indent after first shell (13) doubling
(131) and second indent (132) constitutes the combustion gas mixing channel (11).
8. burner as claimed in claim 6, which is characterized in that the injector (10) by the identical second shell of structure and
Third shell is assembled in opposite directions, and the second shell is equipped at least two third indents, and the third shell is equipped with extremely
Few two with each third indent corresponding 4th indent one by one, opposite the third indent and the 4th indent structure
At the combustion gas mixing channel (11).
9. burner as claimed in claim 6, which is characterized in that end of the injector (10) close to the spray-hole (112)
Portion is provided with outwardly extending flange (14), and the edge of the orifice (20) is provided with card slot (22), the flange (14)
Cooperation, which is inserted in the card slot (22), connects the orifice (20) and the injector (10).
10. a kind of gas heater, which is characterized in that including burner as claimed in any one of claims 1-9 wherein.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154328.9U CN208871621U (en) | 2018-07-20 | 2018-07-20 | A kind of gas heater and its burner |
| EP18020562.7A EP3597999B1 (en) | 2018-07-20 | 2018-10-29 | Gas water heater and burner thereof |
| PT180205627T PT3597999T (en) | 2018-07-20 | 2018-10-29 | Gas water heater and burner thereof |
| ES18020562T ES2863909T3 (en) | 2018-07-20 | 2018-10-29 | Gas water heater and gas burner |
| CL2018003168A CL2018003168A1 (en) | 2018-07-20 | 2018-11-08 | Water heater and gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154328.9U CN208871621U (en) | 2018-07-20 | 2018-07-20 | A kind of gas heater and its burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871621U true CN208871621U (en) | 2019-05-17 |
Family
ID=66463236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821154328.9U Active CN208871621U (en) | 2018-07-20 | 2018-07-20 | A kind of gas heater and its burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871621U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916872A (en) * | 2018-07-20 | 2018-11-30 | 广东万和新电气股份有限公司 | A kind of gas heater and its burner |
| CN110360563A (en) * | 2019-07-30 | 2019-10-22 | 宁波方太厨具有限公司 | Cooker burner |
| CN110375298A (en) * | 2019-07-22 | 2019-10-25 | 广东万和新电气股份有限公司 | A kind of burner assembly and gas heater |
-
2018
- 2018-07-20 CN CN201821154328.9U patent/CN208871621U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916872A (en) * | 2018-07-20 | 2018-11-30 | 广东万和新电气股份有限公司 | A kind of gas heater and its burner |
| CN110375298A (en) * | 2019-07-22 | 2019-10-25 | 广东万和新电气股份有限公司 | A kind of burner assembly and gas heater |
| CN110360563A (en) * | 2019-07-30 | 2019-10-22 | 宁波方太厨具有限公司 | Cooker burner |
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