CN109798520B - Full premix burner and full premix boiler - Google Patents
Full premix burner and full premix boiler Download PDFInfo
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- CN109798520B CN109798520B CN201910091312.0A CN201910091312A CN109798520B CN 109798520 B CN109798520 B CN 109798520B CN 201910091312 A CN201910091312 A CN 201910091312A CN 109798520 B CN109798520 B CN 109798520B
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- main body
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- combustion
- natural frequency
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 48
- 230000030279 gene silencing Effects 0.000 claims abstract description 35
- 230000010355 oscillation Effects 0.000 claims description 21
- 230000003584 silencer Effects 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 18
- 239000002737 fuel gas Substances 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Abstract
The invention discloses a full premix burner and a full premix boiler, wherein the full premix burner comprises: a main body having a combustion face; the main body is capable of inputting premixed gas and forming combustion on the combustion surface; the main body is fixedly provided with a silencing structure. The main body is of a cylindrical structure. The natural frequency of the main body provided with the silencing structure is higher than that of the main body without the silencing structure. The full premix combustor and the full premix boiler provided by the application can reduce noise generated in the combustion process of the full premix combustor and improve the use experience of users.
Description
Technical Field
The application relates to the field of gas combustion equipment, in particular to a full premix burner and a full premix boiler.
Background
The full premix combustion device is a device for combusting the combustible gas mixed in the premix chamber. A part of full premix combustion device in the prior art is especially applied to the field of full premix boilers, and can comprise a combustor, a fan, an ignition needle and the like. After the combustible gas enters the burner, the combustible gas is sprayed out from the fire holes on the side wall of the burner to form combustion flame. However, the problem of large howling noise exists in the low-load operation process of the full premix boiler, so that the use experience of users is very affected.
Disclosure of Invention
The inventor finds that the full premix combustion boiler is easy to generate resonance during low-load operation, and further generates larger howling noise. In low-load operation, the total amount of the fuel gas output by the burner is small, and in this state, a small fuel gas amount change can cause a change in the fuel gas and air equivalent ratio (also referred to as air-fuel ratio), so that the combustion heat release rate has a small change, and the small change can generate sound pressure disturbance, namely combustion oscillation, which is coupled with the natural frequency of the burner, and resonance noise occurs.
In view of the shortcomings of the prior art, an object of the present application is to provide a full premix burner and a full premix boiler, so that noise generated in the combustion process of the full premix burner can be reduced, and the user experience is improved.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a full premix burner comprising:
a main body having a combustion face; the main body is capable of inputting premixed gas and forming combustion on the combustion surface; the main body is fixedly provided with a silencing structure.
As a preferred embodiment, the main body is a cylindrical structure, and the sound deadening structure is provided inside the main body.
As a preferred embodiment, the natural frequency of the body provided with the sound deadening structure is higher than the natural frequency of the body not provided with the sound deadening structure.
As a preferred embodiment, the natural frequency of the main body provided with the sound deadening structure is 1.2 times or more or 0.8 times or less than the natural frequency of the main body not provided with the sound deadening structure.
As a preferred embodiment, the burner has a flame oscillation frequency range when burning; the sound attenuating structure locates the natural frequency of the body outside the flame oscillation frequency range.
In a preferred embodiment, the noise reducing structure makes the natural frequency of the main body larger than the range of the flame oscillation frequency corresponding to the highest combustion load of less than half of the burner.
As a preferred embodiment, the silencing structure is integrally formed with the main body, or welded to the inner wall of the main body.
As a preferred embodiment, the silencing structure includes a silencing plate fixed to an inner wall of the main body.
In a preferred embodiment, the plate surface of the muffler plate is parallel to the longitudinal direction of the main body.
As a preferred embodiment, the ratio of the length of the muffler plate to the length of the main body along the length direction of the main body is in the range of 0.25 to 0.75.
As a preferred embodiment, a plurality of the sound deadening plates are uniformly distributed in the circumferential direction inside the main body; one end of each silencer plate is fixedly connected with the inner wall of the main body, and the other end of each silencer plate is fixedly connected with other silencer plates.
As a preferred embodiment, the sound deadening structure is projected in a cross shape or a Y shape along a longitudinal direction of the main body on a surface perpendicular to the longitudinal direction.
As a preferred embodiment, the ratio of the gas flow area at the location of the sound attenuating structure to the internal cross-sectional area of the body at that location is greater than 80%.
As a preferred embodiment, the distance between the sound deadening structure and either end of the main body is 1/6 or more of the length of the main body.
A full premix boiler comprising: the burner of any of the above embodiments.
The beneficial effects are that:
the full premix combustor that this embodiment provided through being equipped with amortization structure, amortization structure can change the natural frequency of main part for the produced burning vibration of combustor when low-load operation staggers rather than natural frequency, thereby reduces the probability that resonance produced, and then the production of noise reduction promotes user's use and experience.
Specific embodiments of the invention are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not limited in scope thereby. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a full premix burner according to an embodiment of the present disclosure;
FIG. 2 is another view of FIG. 1;
fig. 3 is a combustion state area diagram of the burner of fig. 1 and the burner without the silencing structure.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 3. In one embodiment of the present application, a full premix burner is provided, comprising: a main body 100 having a combustion face 101; the main body 100 is capable of inputting premixed gas and forming combustion on the combustion surface 101; the main body 100 is fixedly provided with a silencing structure 200.
In this embodiment, the noise reducing structure 200 may change the natural frequency of the main body 100, so that the combustion oscillation generated by the burner during low-load operation is staggered from the natural frequency of the burner, and the coupling between the natural frequency of the burner and the combustion oscillation is avoided, thereby reducing the probability of resonance, further reducing the noise, and improving the user experience.
The main body 100 provided with the silencing structure 200 has a larger combustion operation area than a main body without the silencing structure, and is suitable for more combustion conditions. This effect can also be confirmed by the experimental results in the following examples.
In the embodiment of the application, the full premix burner may be a flat plate burner or a cylindrical burner. In an embodiment of the flat burner, at least part of the combustion surface is planar, and accordingly, premix gas is fed upstream of the combustion surface. The sound deadening structure is disposed upstream of the combustion surface and changes the natural frequency of the burner.
In this embodiment, the main body 100 is cylindrical, that is, the full premix burner is a cylindrical burner, and the combustion surface 101 is located on a side wall of the main body 100. Preferably, the body 100 may have a cylindrical structure. In addition, the main body 100 may also have other cylindrical structures, such as a prismatic shape or other shapes, which are not excluded from the present application. The sidewall of the cylindrical body 100 may be provided with a plurality of fire holes to form the combustion face 101. The premixed gas (premixed gas) in the main body 100 may be discharged from the fire hole.
In the present embodiment, the outer side wall of the cylindrical burner forms a combustion surface 101, and the side wall of the main body 100 is provided with fire holes. The fire holes may or may not be uniformly distributed in the side wall of the main body 100, and the present application is not limited thereto.
In this embodiment, the upper end of the cylindrical body 100 has an inlet to input the premix gas. The sound deadening structure 200 is provided upstream of the combustion surface 101. The premixed gas input to the main body 100 may be a mixture of fuel gas and air. The fuel gas can be natural gas, coal gas and the like. The premixing device mixes the fuel gas and air and inputs the mixture into the full premix burner through the inlet of the main body 100 through the outlet of the blower.
The natural frequency of the cylindrical main body 100 is changed by the silencing structure 200, so that the probability of coupling with the flame oscillation frequency is reduced, for example, the natural frequency of the cylindrical main body 100 with the silencing structure 200 can be lower than the flame oscillation frequency or higher than the flame oscillation frequency.
In the embodiment of the present application, the noise reducing structure 200 changes the natural frequency of the main body 100. Specifically, in order to have an effect of reducing resonance noise, the natural frequency of the main body 100 is 1.2 times or more or 0.8 times or less than that of the case where the noise reducing structure 200 is not provided. In this way, the natural frequency variation rate of the main body 100 provided with the sound deadening structure 200 is 20% or more compared with that without the sound deadening structure 200.
Further, the natural frequency of the main body 100 is higher than that in the case where the noise attenuation structure 200 is not provided. Specifically, the natural frequency of the cylindrical body 100 is 1.2 times or more the natural frequency in the case where the noise reducing structure 200 is not provided. Therefore, the flame oscillation frequency of the burner in low-load operation can be better avoided, and the combustion noise is effectively reduced.
In one embodiment, the sound attenuating structure provides a natural frequency of the body that is greater than a range of flame oscillation frequencies corresponding to a highest combustion load of less than one-half of the burner. The burner has the highest combustion load, and the highest combustion load of burner below half corresponds certain flame oscillation frequency range, and the amortization structure can make the natural frequency of main part avoid this flame oscillation frequency range, so reduces the noise that produces in the full premix burner combustion process, promotes user's use experience.
To further reduce the chance of resonance and thus the noise, the burner has a flame oscillation frequency range during combustion. The silencing structure 200 has a natural frequency of the cylindrical body 100 outside the flame oscillation frequency range.
Referring now to FIG. 3, therein is shown a burner test data versus combustion status area diagram for the embodiment of FIG. 1. As can be seen from the graph, on the main body where the sound deadening structure in fig. 1 is not provided, there is oscillation noise (4 data points are present) at a combustion load of 40% or less, and it can be seen that resonance easily occurs at the time of low load operation to generate corresponding resonance noise, resulting in noise that may be audible to the user, such as howling, that damages the user's use experience.
Looking on fig. 3, it can be seen that there is no oscillation noise in the working area (the area between the upper limit value curve and the lower limit value curve) of the main body 100 provided with the sound deadening structure 200, so that the main body 100 provided with the sound deadening structure 200 has completely avoided the occurrence of resonance noise.
Continuing to look at fig. 3, for the combustion operation zone (adjustable range of the boiler gas valve), the upper limit value of the operation zone of the main body 100 provided with the silencing structure 200 is significantly higher than the upper limit value of the main body 100 without the silencing structure 200, and the lower limit value of the operation zone is substantially the same as the upper limit value of the operation zone, so that it can be seen that the main body 100 provided with the silencing structure 200 has a larger combustion operation zone than the main body without the silencing structure, and is adapted to more combustion conditions.
In this embodiment, the silencing structure 200 is fixedly disposed inside the main body 100. Wherein the silencing structure 200 is fixed to the inner wall of the cylindrical body 100. The silencing structure 200 and the tubular body 100 may be integrally formed, or may be fixedly connected to the inner wall of the body 100. For example, the silencing structure 200 may be welded to the inner wall of the cylindrical body 100. Of course, the silencing structure 200 may be connected to the inner wall of the tubular body 100 by bolts, or riveted to the inner wall of the tubular body 100, etc., which is not limited only in this application.
In this embodiment, the silencing structure 200 may raise the weight of the burner. The sound attenuating structure 200 may also enhance the structural rigidity of the burner. Thus, the silencing structure 200 increases the natural frequency of the main body 100, and preferably staggers the natural frequency from the flame oscillation frequency, thereby reducing the resonance probability.
In this embodiment, the shape and structure of the silencing structure 200 are various, and may be a reinforcing rib, a rod or a plate installed inside the main body 100, or the silencing structure 200 may be installed on the outer wall of the main body 100, so as to enhance the rigidity of the main body 100 and increase the natural frequency of the main body 100. In this embodiment, the silencing structure 200 includes a silencing plate fixed to the inner wall of the cylindrical body 100. The muffler plate may be a straight plate or a curved plate, and is not limited solely by the present application.
The muffler plate is installed across the inside of the main body 100. To reduce the influence on the flow of the premixed gas in the burner, the normal supply of the premixed gas is ensured, and the plate surface of the silencer plate is parallel to the length direction of the cylindrical body 100. Wherein, the thickness direction of the silencer plate is perpendicular to the flowing direction of the premixed gas. Of course, the muffler plate may be disposed obliquely, for example, with an acute angle between the plate surface of the muffler plate and the longitudinal direction of the tubular body 100.
To reduce the effect on the flow of premix gas in the burner, in a preferred embodiment, the ratio of the gas flow area at the location of the silencing structure 200 to the internal cross-sectional area of the body 100 at that location is greater than 80%.
In order to have a preferable noise reduction effect, the ratio of the length of the silencer plate to the length of the cylindrical body 100 is in the range of 0.25 to 0.75 along the length of the cylindrical body 100. Further, the distance between the silencing structure 200 and either end of the tubular body 100 is 1/6 or more of the length of the tubular body 100, which can provide a superior noise reduction effect.
As shown in fig. 2, the length of the tubular body 100 is L, and the length of the sound deadening structure 200 is L. Wherein l=0.25L to 0.75L. The length of the silencing structure 200 and the lower end or upper end (when the reader faces fig. 2) of the cylindrical body 100 is d, wherein d is equal to or greater than (1/6) L.
In the present embodiment, a plurality of the muffler plates are uniformly distributed in the circumferential direction inside the cylindrical body 100. One end of each silencer plate is fixedly connected with the inner wall of the cylindrical main body 100, and the other end of each silencer plate is fixedly connected with other silencer plates. The length of each muffler plate is approximately equal to half of the inner diameter of the cylindrical body 100.
The silencer structure 200 is cross-shaped (cross-shaped as shown in fig. 1) or Y-shaped in projection along the longitudinal direction of the tubular body 100 on a surface perpendicular to the longitudinal direction. In one embodiment, three silencer plates are uniformly distributed along the circumferential direction, and two adjacent silencer plates form an included angle of 120 degrees to form a Y shape.
In another embodiment of the present application, a full premix boiler is provided, including: the burner of any of the above embodiments.
In this embodiment, the burner is in communication with a fan. The inlet of the main body 100 is upward, and the fan is disposed above the main body 100 and is communicated with the inlet of the main body 100. The flue gas outlet is positioned at the lower part of the shell of the full premix boiler. The chamber inside the housing forms a furnace chamber in which the full premix burner is located. The fuel gas enters the burner (main body 100) from top to bottom. Accordingly, the flue gas generated by combustion is also discharged from the flue gas outlet substantially from top to bottom.
By adopting the structure, the fuel gas and the flue gas can further improve the flow velocity of the fuel gas and the flue gas by gravity, and the shell can be used for bearing the fan so as to reduce the volume of the full premix boiler.
Of course, in other alternative embodiments, the inlet of the burner is located at the lower part of the housing, the fan corresponding to the inlet of the burner may also be disposed at the lower part of the housing, and correspondingly, the flue gas outlet is located at the top of the housing, and the fan is located below the burner.
Any numerical value recited herein includes all values of the lower and upper values that increment by one unit from the lower value to the upper value, as long as there is a spacing of at least two units between any lower value and any higher value. For example, if it is stated that the number of components or the value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then the purpose is to explicitly list such values as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. in this specification as well. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be explicitly recited in this description, and all possible combinations of values recited between the lowest value and the highest value are believed to be explicitly stated in the description in a similar manner.
Unless otherwise indicated, all ranges include endpoints and all numbers between endpoints. "about" or "approximately" as used with a range is applicable to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30," including at least the indicated endpoints.
All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional.
Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the inventors regard such subject matter as not be considered to be part of the disclosed subject matter.
Claims (12)
1. A full premix burner comprising:
a main body having a combustion face; the main body is capable of inputting premixed gas and forming combustion on the combustion surface; the main body is fixedly provided with a silencing structure; the noise reduction structure enables the natural frequency of the main body to be larger than the range of flame oscillation frequency corresponding to the highest combustion load below one half of the burner; wherein the silencing structure is arranged at the upstream of the combustion surface and comprises a silencing plate fixed on the inner wall of the main body; the surface of the sound attenuation plate is parallel to the length direction of the main body.
2. The full premix burner of claim 1, wherein said main body is a cylindrical structure and said sound attenuating structure is disposed within said main body.
3. The full premix burner of claim 1, wherein the natural frequency of the main body provided with the sound deadening structure is higher than the natural frequency of the main body not provided with the sound deadening structure.
4. The full premix burner according to claim 1, wherein the natural frequency of the main body provided with the sound deadening structure is 1.2 times or more or 0.8 times or less than the natural frequency of the main body not provided with the sound deadening structure.
5. The full premix burner of claim 1 wherein said burner has a flame oscillation frequency range when burned; the sound attenuating structure locates the natural frequency of the body outside the flame oscillation frequency range.
6. The burner of claim 2, wherein the sound attenuating structure is integral with the main body or welded to an inner wall of the main body.
7. The burner of claim 6, wherein the ratio of the length of the muffler plate to the length of the main body along the length of the main body ranges from 0.25 to 0.75.
8. The burner of claim 6 wherein a plurality of said muffler plates are circumferentially uniformly distributed within said main body; one end of each silencer plate is fixedly connected with the inner wall of the main body, and the other end of each silencer plate is fixedly connected with other silencer plates.
9. The burner of claim 8, wherein the sound attenuating structure is cross-shaped or Y-shaped in a projection of a surface perpendicular to the length direction of the main body along the length direction.
10. The burner of claim 6, wherein the ratio of the gas flow area at the location of the sound attenuating structure to the internal cross-sectional area of the body at the location is greater than 80%.
11. The burner of claim 6, wherein the distance between the sound attenuating structure and either end of the main body is greater than 1/6 the length of the main body.
12. A full premix boiler, comprising: a burner as claimed in any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091312.0A CN109798520B (en) | 2019-01-30 | 2019-01-30 | Full premix burner and full premix boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091312.0A CN109798520B (en) | 2019-01-30 | 2019-01-30 | Full premix burner and full premix boiler |
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| Publication Number | Publication Date |
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| CN109798520A CN109798520A (en) | 2019-05-24 |
| CN109798520B true CN109798520B (en) | 2024-04-12 |
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| CN201910091312.0A Active CN109798520B (en) | 2019-01-30 | 2019-01-30 | Full premix burner and full premix boiler |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013120716A1 (en) * | 2012-02-16 | 2013-08-22 | Bekaert Combustion Technology B.V. | Premix gas burner |
| CN203836963U (en) * | 2014-05-04 | 2014-09-17 | 广东万和新电气股份有限公司 | Air inlet device and full premixed combustion water heater comprising same |
| CN108007231A (en) * | 2017-12-21 | 2018-05-08 | 巴尔的摩冷却系统（苏州）有限公司 | A kind of air outlet micropore plate muffler for crossflow cooling tower |
| CN207935603U (en) * | 2017-12-29 | 2018-10-02 | 武汉金港穗厨房设备制造有限公司 | A kind of smoke discharging pipe silencing apparatus |
| CN108819363A (en) * | 2018-06-14 | 2018-11-16 | 六合天地（武汉）环境有限公司 | A kind of muffler |
| CN209819536U (en) * | 2019-01-30 | 2019-12-20 | 艾欧史密斯(中国)热水器有限公司 | Full premix combustor and full premix boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10260741B2 (en) * | 2015-06-05 | 2019-04-16 | Intellihot, Inc. | Burner resonance canceling apparatus |
-
2019
- 2019-01-30 CN CN201910091312.0A patent/CN109798520B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013120716A1 (en) * | 2012-02-16 | 2013-08-22 | Bekaert Combustion Technology B.V. | Premix gas burner |
| CN203836963U (en) * | 2014-05-04 | 2014-09-17 | 广东万和新电气股份有限公司 | Air inlet device and full premixed combustion water heater comprising same |
| CN108007231A (en) * | 2017-12-21 | 2018-05-08 | 巴尔的摩冷却系统（苏州）有限公司 | A kind of air outlet micropore plate muffler for crossflow cooling tower |
| CN207935603U (en) * | 2017-12-29 | 2018-10-02 | 武汉金港穗厨房设备制造有限公司 | A kind of smoke discharging pipe silencing apparatus |
| CN108819363A (en) * | 2018-06-14 | 2018-11-16 | 六合天地（武汉）环境有限公司 | A kind of muffler |
| CN209819536U (en) * | 2019-01-30 | 2019-12-20 | 艾欧史密斯(中国)热水器有限公司 | Full premix combustor and full premix boiler |
Non-Patent Citations (1)
| Title |
|---|
| 沃德.海伦等.模态分析理论与试验.北京理工大学出版社,2011,第8-9页. * |
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