CN114992859A - Gas heater and device of making an uproar and gas heater fall - Google Patents
Gas heater and device of making an uproar and gas heater fall Download PDFInfo
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- CN114992859A CN114992859A CN202210459498.2A CN202210459498A CN114992859A CN 114992859 A CN114992859 A CN 114992859A CN 202210459498 A CN202210459498 A CN 202210459498A CN 114992859 A CN114992859 A CN 114992859A
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- 239000003570 air Substances 0.000 description 58
- 239000007789 gas Substances 0.000 description 58
- 230000030279 gene silencing Effects 0.000 description 21
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- 239000008236 heating water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The invention relates to the technical field of household appliances, and provides a noise reduction device of a gas water heater and the gas water heater, wherein the noise reduction device of the gas water heater comprises: the base member, be equipped with in the base member along a plurality of bloop chambeies of the working surface interval distribution of base member, just the working surface is equipped with the bloop, every the bloop chamber all through respectively corresponding the bloop communicates with the external world. The noise reduction device of the gas water heater can realize multiple reflections of noise, consume the energy of low-frequency noise and reduce the influence on users through the structure of the porous sound-absorbing cavity.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a noise reduction device of a gas water heater and the gas water heater.
Background
The gas water heater is the most convenient and economic device for quickly heating water at present, the energy conversion efficiency of the gas water heater exceeds 90%, and compared with an electric water heater, the gas water heater is more energy-saving. However, when the gas water heater works normally, large noise can be generated, particularly, low-frequency noise is quite large and difficult to separate, and bad experience can be brought to people moving near the water heater.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a noise reduction device of a gas water heater.
The invention also provides a gas water heater.
According to the embodiment of the first aspect of the invention, the noise reduction device of the gas water heater comprises:
the base member, be equipped with in the base member along a plurality of bloop chambeies of the working surface interval distribution of base member, just the working surface is equipped with the bloop, every the bloop chamber all through respectively corresponding the bloop communicates with the external world.
According to the noise reduction device of the gas water heater, the noise can be reflected for multiple times through the structure of the porous silencing cavity, the energy of the noise is consumed, and the influence on a user is reduced.
According to one embodiment of the invention, the working surface comprises a plurality of zones, at least two zones corresponding to different at least one of the volume of the muffling cavity, the flow cross-section of the muffling hole and the density of the muffling hole.
By designing a plurality of areas with different parameters, the gas water heater can be purposefully silenced according to different frequency characteristics of combustion noise, water flow noise and flow-induced noise of the gas water heater.
According to one embodiment of the invention, a plurality of the muffling cavities are arranged in an array along the working surface, and each muffling cavity corresponds to a plurality of the muffling holes arranged in an array.
According to one embodiment of the invention, the volume V of the sound-deadening chamber satisfies: 10mm 3 ≤V≤455mm 3 。
According to one embodiment of the invention, the muffling hole is circular, and the aperture D satisfies: d is more than or equal to 0.6mm and less than or equal to 2 mm.
According to one embodiment of the invention, the working surface comprises a first region and a second region;
the volume of the sound-absorbing cavity corresponding to the first area is V1, the aperture of the sound-absorbing hole corresponding to the first area is D1, the number of the sound-absorbing holes corresponding to each sound-absorbing cavity corresponding to the first area is N1, and the sound-absorbing cavity is full ofFoot: 60mm 3 ≤V1≤455mm 3 ，0.6mm≤D1≤2mm，50≤N1≤75；
The volume of the sound-absorbing cavity corresponding to the second area is V2, the aperture of the sound-absorbing hole corresponding to the second area is D2, and the number of the sound-absorbing holes corresponding to each sound-absorbing cavity corresponding to the second area is N2, so that the following requirements are met: 10mm 3 ≤V2≤80mm 3 ，0.6mm≤D2≤2mm，76≤N2≤120。
According to one embodiment of the invention, the projection areas of the two sound-deadening cavities with different volumes on the working surface are different.
According to an embodiment of the present invention, further comprising: first apron and second apron, first apron with the second apron prescribes a limit to the intake duct, the base member install in the intake duct.
According to an embodiment of the present invention, further comprising:
the base body is arranged on the inner side of the front cover plate, and the working surface is a surface deviating from the front cover plate.
The gas water heater according to the embodiment of the second aspect of the invention comprises:
a bottom case;
the combustor, the heat exchanger and the fan system are arranged on the bottom shell;
the noise reducer as in any above, the noise reducer being located at least on a front side of the heat exchanger and the fan system.
According to the gas water heater provided by the embodiment of the invention, multiple reflections of noise can be realized through the structure of the porous silencing cavity, the energy of the noise is consumed, and the influence on a user is reduced.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
through the structure of the porous sound-deadening cavity, the multiple reflection of noise can be realized, the energy of low-frequency noise is consumed, and the influence on a user is reduced.
Furthermore, by designing a plurality of areas with different parameters, the noise can be specifically reduced according to different frequency characteristics of combustion noise, water flow noise and flow-induced noise of the gas water heater.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is one of schematic structural diagrams of a noise reduction apparatus provided in an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a noise reduction device according to an embodiment of the present invention;
FIG. 3 is one of the exploded views of a gas water heater provided by an embodiment of the present invention;
fig. 4 is an exploded view of a noise reduction device according to an embodiment of the present invention;
FIG. 5 is a second exploded view of a gas water heater according to an embodiment of the present invention;
FIG. 6 is a third exploded view of a gas water heater according to an embodiment of the present invention;
fig. 7 is a third schematic structural diagram of a noise reduction apparatus according to an embodiment of the present invention;
fig. 8 is a fourth exploded view of a gas water heater according to an embodiment of the present invention.
Reference numerals:
a bottom chassis 100;
the burner 140, the heat exchanger 150, the fan system 160, the smoke tube 161, the sealing gasket 171 and the sealing ring 172;
a base body 210, a silencing cavity 220, a first area 221, a second area 222, a silencing hole 230;
a first cover plate 310, a first intake vent 311;
a second cover plate 320, a second air inlet 321, a first through hole group 322, and a second through hole group 323;
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The noise reduction device of the gas water heater according to the embodiment of the present invention will be described with reference to fig. 1 to 8.
As shown in fig. 1 and 2, the noise reduction device for a gas water heater according to the embodiment of the present invention includes: base 210. base 210 includes a working surface for facing a noise source, which may be the fan system 160, heat exchange system and burner 140 of a gas water heater. The surface in fig. 1 and 2 provided with the muffling aperture 230 is the working surface.
The substrate 210 may be made of plastic, metal, or ceramic.
A plurality of silencing cavities 220 are arranged in the base body 210, the plurality of silencing cavities 220 are distributed at intervals along the working surface of the base body 210, and adjacent silencing cavities 220 are separated by a solid in the base body 210.
The sound-deadening chamber 220 may have a rectangular parallelepiped shape or a spherical shape or other shapes, and the region of the substrate 210 where the sound-deadening chamber 220 is not formed may have a thin-walled structure to reduce the weight of the sound-deadening member.
The working surface is provided with sound-deadening holes 230, and each of the sound-deadening chambers 220 communicates with the outside through the respective sound-deadening hole 230.
The muffling hole 230 may be circular, triangular or square in shape.
When the gas water heater works, the fan system 160, the heat exchange system and the burner 140 all generate working noise, when the noise is spread outwards, the noise can be spread to the silencing cavity 220 through the silencing hole 230, and the energy of the noise is consumed through multiple reflections in the silencing cavity 220.
Especially for low-frequency noise generated during the operation of the gas water heater, sound absorbing materials such as soundproof cotton in the related art can be effective, and the noise reduction device of the embodiment of the invention can absorb the low-frequency noise by matching the muffling cavity 220 with the muffling hole 230.
According to the noise reduction device of the gas water heater, the noise can be reflected for many times through the structure of the porous silencing cavity 220, the energy of low-frequency noise is consumed, and the influence on a user is reduced.
In some embodiments, as shown in figure 2, the working surface comprises a plurality of regions, at least two of which differ in at least one of the volume of the muffling chamber 220, the flow cross-section of the muffling aperture 230, and the density of the muffling aperture 230.
When the noise reducer is installed in the gas water heater, as shown in fig. 5 and 8, the first region 221 faces the burner 140 and the heat exchanger 150, and preferably, the first region 221 faces the combustion chamber of the burner 140 and the heat exchanger 150; the second region 222 is oriented toward the fan system 160, where A is oriented toward B, meaning that A and B projections substantially coincide in the fore-aft direction.
At least one of the volume of the at least two muffling cavities 220, the flow cross-section of the muffling holes 230 corresponding to the at least two muffling cavities 220, and the density of the muffling holes 230 corresponding to the at least two muffling cavities 220 is different.
In other words, there is at least one difference in the parameters of the at least two sound-deadening chambers 220 of the three following: the volume of the silencing cavity 220, the flow cross-sectional area of the silencing hole 230 and the density of the silencing hole 230 corresponding to the silencing cavity 220 can be used for carrying out targeted silencing aiming at different frequency characteristics of combustion noise, water flow noise and flow-induced noise of the gas water heater.
In some embodiments, the volume of sound-deadening chamber 220 facing the burner 140 and heat exchanger 150 is greater than the volume of sound-deadening chamber 220 facing the fan system 160 when the noise reducer is installed in a gas water heater.
The inventor finds that the noise sources for the normal operation of the gas water heater include: combustion noise, fan noise, gas injection noise, mechanical vibration noise, water flow noise, and the like. The combustion noise has obvious low frequency characteristic, and the penetrability is strong, and fan and water pump noise have obvious high frequency characteristic, and sharp-pointed harsh, the sense of hearing is felt poorly.
By designing the volume of sound-deadening chamber 220 toward combustor 140 and heat exchanger 150 to be larger, low-frequency noise can be better absorbed.
As shown in fig. 2, the projected areas of the two sound-deadening chambers 220 with different volumes on the working surface are different. For example, the projected area of sound-deadening chamber 220 in second region 222 on the working surface in fig. 2 is larger than the projected area of sound-deadening chamber 220 in first region 221 on the working surface.
The two muffling chambers 220 having different volumes may have the same depth in the direction perpendicular to the working surface, which facilitates the processing.
Of course, the depth of the two sound-deadening chambers 220 different in volume in the direction perpendicular to the working surface can also be designed differently.
In some embodiments, when the noise reducer is installed in a gas water heater, the number of muffling holes 230 corresponding to the muffling chamber 220 towards the burner 140 and the heat exchanger 150 is less than the number of muffling holes 230 corresponding to the muffling chamber 220 towards the fan system 160. High frequency noise can be better accommodated by designing more of the number of muffling holes 230 to correspond to the muffling chamber 220 toward the fan system 160.
The plurality of muffling chambers 220 are arranged in an array along the working surface, and each muffling chamber 220 corresponds to a plurality of muffling holes 230 arranged in an array. Thus, a plurality of silencing cavities 220 and silencing holes 230 are arranged in each area, so that multi-area silencing can be realized.
In some embodiments, the volume V of the sound-deadening chamber 220 satisfies: 10mm 3 ≤V≤455mm 3 . Through a great deal of research, the inventor finds that the noise of 200Hz-800Hz can be better absorbed by the silencing cavity 220 in the volume range, and the working noise of the gas water heater is basically in the interval. For example, V100 mm 3 Or V is 200mm 3 Or V is 300mm 3 Or V is 400mm 3 。
In some embodiments, the muffling hole 230 can be circular, the circular muffling hole 230 is easy to process, and the aperture D of the muffling hole 230 satisfies: d is more than or equal to 0.6mm and less than or equal to 2 mm. Through a great deal of research, the inventor finds that the muffling hole 230 in the size range can well introduce the noise of 200Hz-800Hz, and the working noise of the gas water heater is basically located in the interval. For example, D is 0.8mm, or D is 1.0mm, or D is 1.5 mm.
In some embodiments, the working surface comprises a first region 221 and a second region 222;
the volume of the sound-deadening chamber 220 corresponding to the first region 221 is V1, the aperture of the sound-deadening hole 230 corresponding to the first region 221 is D1, and the number of the sound-deadening holes 230 corresponding to each sound-deadening chamber 220 corresponding to the first region 221 is N1, which satisfies: 60mm 3 ≤V1≤455mm 3 D1 is more than or equal to 0.6mm and less than or equal to 2mm, and N1 is more than or equal to 50 and less than or equal to 75; such as V1-200 mm 3 D1-1 mm and N1-66 mm. This form of the first region 221 can better absorb noise at a frequency of about 300 Hz.
The volume of the sound-deadening cavity 220 corresponding to the second area 222 is V2, the aperture of the sound-deadening hole 230 corresponding to the second area 222 is D2, and the number of the sound-deadening holes 230 corresponding to each sound-deadening cavity 220 corresponding to the second area 222 is N2, so that: 10mm 3 ≤V2≤80mm 3 D2 is more than or equal to 0.6mm and less than or equal to 2mm, and N2 is more than or equal to 76 and less than or equal to 120. For example, V1-50 mm 3 D1 ═ 1.2mm, N1 ═ 99. This form of the second region 222 may provide better noise rejection at frequencies of about 600Hz-800 Hz.
The noise reducer of the embodiment of the present invention may also be used in combination with other sound-insulating members, and the embodiment of the present invention will be specifically described below from two different structural forms.
One, combine the multiply wood, absorb the noise in the air inlet
As shown in fig. 4, the noise reduction apparatus may further include: the first cover plate 310 and the second cover plate 320, when the working noise of the gas water heater is transmitted forwards, at least the second cover plate 320 and the first cover plate 310 are needed to pass through, the second cover plate 320 and the first cover plate 310 can reflect most of the working noise which is transmitted outwards directly, and the second cover plate 320 and the first cover plate 310 can block the direct path of the noise.
The first cover plate 310 and the second cover plate 320 define an inlet channel in which the base 210 is mounted. The air inlet is located between the first cover plate 310 and the second cover plate 320.
As shown in fig. 4, the first cover plate 310 is provided with a first air inlet 311, the first air inlet 311 is communicated with the air inlet channel, and the first air inlet 311 may be a through hole formed in the first cover plate 310, and the through hole penetrates through the first cover plate 310.
As shown in fig. 4, the first intake vent 311 may include a plurality of through holes formed in the first cover plate 310, and the shape of the through holes may be various, including but not limited to: parallelograms, triangles, circles and other polygons, and the like.
The plurality of through holes of the first air inlet 311 can be symmetrically arranged along the central axis of the air inlet channel, so that air inlet is balanced, and the smoothness of air flow in the air inlet channel can be improved. For example, in the embodiment shown in fig. 3, the first air inlet 311 includes a triangular through hole at the center and a plurality of parallelogram through holes distributed in a mirror image on both sides of the triangular through hole.
The second cover plate 320 is provided with a second air inlet 321, and the second air inlet 321 is communicated with the air inlet of the combustor 140. As shown in fig. 3 and 4, the second intake vent 321 is located on the second cover plate 320 opposite to the first intake vent 311. For example, in the case that the first intake vent 311 is located at the lower portion of the first cover plate 310, the second intake vent 321 is located at the upper portion of the second cover plate 320; in the case that the first intake vent 311 is located at the upper portion of the first cover plate 310, the second intake vent 321 is located at the lower portion of the second cover plate 320. So that the length of the inlet channel is sufficiently long.
The first cover plate 310 and the second cover plate 320 may be of a sheet metal structure, so that the fireproof performance and the protection performance of the cover plate assembly are strong.
The main function of the air inlet duct is to introduce ambient air into the burner 140, but the operating noise of the gas water heater is also transmitted outward through the air inlet duct. According to the gas water heater provided by the embodiment of the invention, through the design of at least two cover plates, the path length of the outward transmission of the noise along the air inlet channel can be greatly increased, the amplification is more than 500%, and the transmission loss of the outward transmission of the noise is effectively improved.
In the related art, some structures are designed to prolong the air inlet channel, but the structures are all pipeline structures, so that on one hand, the length is increased in a limited manner due to the limitation of the whole volume of the gas water heater, and on the other hand, the flow cross section area of the prolonged air inlet channel is small, and air inlet noise is generated.
According to the noise reduction device of the gas water heater, the air inlet channel is formed between the cover plates through the design of at least two cover plates, the width of the air inlet channel is equivalent to the width of the whole gas water heater, the flow cross section area of the air inlet channel can be increased, the air inlet channel is linear, the flow channel resistance is small, the difference of the cross section areas is small, the flow field in the flow channel is uniform in flow, the gradient of the flow speed of the air inlet is small, the generated turbulence noise is small, the air inlet noise can be basically eliminated, the air inlet pressure is basically lossless, and the combustion efficiency of the combustor 140 is not influenced.
In addition, in the related art, the air inlet holes are all arranged on the back of the whole machine, and after the whole machine is installed on a wall, the distance between the air inlet holes and the wall is short, generally only 10 mm-20 mm, and the flow channel resistance is large.
According to the noise reduction device of the gas water heater, the first air inlet 311 is arranged at the front part of the whole gas water heater, air inlet is not blocked by an external structure, air inlet resistance of an air inlet channel can be greatly reduced, and the resistance of the whole flow channel is reduced by 70% through experimental calculation.
According to the noise reduction device of the gas water heater, by arranging the multilayer front cover plate 420 structure, each layer of cover plate can weaken internal noise, the sound insulation effect is enhanced, a longer and wider air inlet channel is formed by utilizing the cavity between the cover plates, the path length of the outward transmission of the noise along the air inlet channel can be greatly increased, the transmission loss of the outward transmission of the noise is effectively improved, the air inlet noise can be basically eliminated, and the flow channel resistance is greatly reduced.
In some embodiments, as shown in fig. 3 and 4, the second air inlet 321 may include a first through hole set 322 and a second through hole set 323. The first through hole group 322 is provided at a position close to the primary air intake port of the combustor 140, and the second through hole group 323 is provided at a position close to the secondary air intake port of the combustor 140.
It can be understood that the burner 140 includes a primary air inlet and a secondary air inlet, the primary air inlet is communicated with the gas inlet channel of the burner 140, air is sucked by the negative pressure generated by the high-speed passing gas, the secondary air inlet directly introduces air, and by independently designing the first through hole group 322 and the second through hole group 323 for the primary air inlet and the secondary air inlet, the flow ratio of the primary air inlet and the secondary air inlet can be improved, the burner 140 is helped to obtain better combustion effect, and the content of harmful gases such as CO in the flue gas is reduced.
For example, the primary air inlet of the burner 140 in the embodiment shown in fig. 3 is on the right side, the secondary air inlet is on the bottom, correspondingly, a first through hole group 322 and a second through hole group 323 as shown in fig. 3 are designed, the first through hole group 322 is on the right side, the second through hole group is on the left side, and the first through hole group is longer in length and extends more upwards to fit the primary air inlet.
The shape of the through holes in the first through-hole group 322 and the second through-hole group 323 can be various, for example, in the embodiment shown in fig. 3 and 4, the first through-hole group 322 and the second through-hole group 323 can each include a plurality of elongated through-holes, and the length of each through-hole in the first through-hole group 322 is longer than that of each through-hole in the second through-hole group 323; alternatively, the first through-hole group 322 and the second through-hole group 323 may each include a plurality of circular through-holes, and the radius of each through-hole in the first through-hole group 322 is larger than the radius of each through-hole in the second through-hole group 323.
Of course, the first through hole group 322 and the second through hole group 323 may be designed in other shapes, such as a polygon, etc.
In some embodiments, the first set of through holes 322 has a cross-sectional flow area of a1 and the second set of through holes 323 has a cross-sectional flow area of a2, satisfying: A1/A2 is more than or equal to 1 and less than or equal to 2. By designing the flow cross-sectional area of the first through hole group 322 to be larger, the ratio of the primary intake air can be increased, which contributes to reducing the emission of harmful gases such as CO and NO, and in the actual design, the value of a1/a2, for example, a1/a2 is 1.5, or a1/a2 is 1.8, can be adjusted according to the specific combustion conditions.
Two, combine the single-layer board, directly absorb the noise of outside transmission
As shown in fig. 6, the noise reduction apparatus may further include: the front cover plate 420, the base 210 is mounted inside the front cover plate 420, and the working surface is a surface facing away from the front cover plate 420.
A front cover plate 420 is installed at the front of the gas water heater, and the front cover plate 420 serves to reflect noise propagating forward.
The front cover plate 420 may be a shell-type structure, in some embodiments, the front cover plate 420 may be a unitary structure to minimize porosity of the front cover plate 420, or the front cover plate 420 may be a unitary, imperforate structure. Thus, the radiation noise at the front part of the gas water heater can be reduced.
As shown in fig. 7, the front cover 420 includes a panel 421, and a left side plate 422 and a right side plate 423 connected to the panel 421. The panel 421, the left side plate 422, and the right side plate 423 are formed as an integrated structure. Thus, there is no gap between the plates and the noise transmitted backward can be reduced.
The rear cover plate and the front cover plate 420 can be of a sheet metal structure, so that the rear cover plate and the front cover plate 420 are high in fireproof performance and protective performance; or the rear cover plate and the front cover plate 420 can be of a plastic shell type structure, so that the rear cover plate and the front cover plate 420 are light in weight and convenient to form, and flame retardants can be added into the plastic rear cover plate and the plastic front cover plate 420 to enhance the fireproof performance.
The invention also provides a gas water heater.
As shown in fig. 3 and 6, a gas water heater according to an embodiment of the present invention includes: a bottom shell 100, a burner 140, a heat exchanger 150, a fan system 160, and a noise reducer of any of the above embodiments. The noise reducer is located at least on the front side of the heat exchanger 150 and the fan system 160. The noise reduction device is used for absorbing the working noise which is transmitted forwards.
The bottom case 100 serves to support the main functional components of the gas water heater, which can be mounted to the bottom case 100.
The bottom case 100 has an opening, and the main functional components of the gas water heater can be mounted to the bottom case 100 from the opening.
The bottom case 100 may be a shell structure, in some embodiments, the bottom case 100 may be a one-piece structure to minimize the gap between the bottom case 100 and the rear mounting wall, or the bottom case 100 may be a one-piece non-porous structure. Therefore, the radiation noise at the back of the gas water heater can be reduced, and the reflection of the back noise on the installation wall body is weakened.
As shown in fig. 3, the bottom case 100 may include a back plate located at the rear end of the bottom case 100, an opening located at the front end of the bottom case 100, and a side panel connected to the back plate, wherein the side panel may include four panels, and the back plate and the side panel may be integrally formed. Thus, there is no gap between the plates and the noise transmitted backward can be reduced.
As shown in fig. 5, the bottom chassis 100 may include a back plate located at a rear end of the bottom chassis 100, a top plate connected to an upper end of the back plate and bent forward, and a bottom plate connected to a lower end of the back plate and bent forward. The back plate, top plate and bottom plate may be of unitary construction. Thus, no holes are formed between the plates, and the noise transmitted backwards can be reduced.
The bottom case 100 may be a metal shell structure, such that the bottom case 100 has a high strength and a good fire-proof performance; alternatively, the bottom case 100 may have a plastic shell structure, so that the bottom case 100 has a light weight and is easy to mold, and a fire retardant may be added to the plastic bottom case 100 to enhance fire resistance.
The burner 140, the heat exchanger 150, and the fan system 160 are mounted to the bottom case 100, and the burner 140, the heat exchanger 150, and the fan system 160 may be mounted to the bottom case 100 by a screw connection structure or a mounting structure such as a snap.
The heat exchanger 150 may communicate with a combustion chamber of the burner 140, an oxidant (air) enters the burner 140 from an air inlet of the burner 140, and is mixed with the gas and burned in the combustion chamber, and water to be heated and high temperature air exchange heat at the heat exchanger 150. The heat exchanger 150 may be located at an upper end of the combustor 140.
According to the gas water heater provided by the embodiment of the invention, through the structure of the porous silencing cavity 220, multiple reflections of noise can be realized, the energy of the noise is consumed, and the influence on a user is reduced.
In some embodiments, as shown in fig. 3, a gasket 171 is interposed between the cover assembly and the bottom case 100, and the gasket 171 may block a gap between the bottom case 100 and the first cover 310, thereby blocking a path through which noise directly propagates outward. The gasket 171 may have a shape similar to the outer circumference of the bottom case 100, such as a square ring shape. The gasket 171 may be a sealing cotton.
In some embodiments, as shown in fig. 3, the gas water heater may further include a sealing ring 172, the smoke tube 161 of the blower system 160 penetrates through the top plate of the bottom shell 100, the sealing ring 172 is sleeved outside the smoke tube 161, and the sealing ring 172 is clamped between the smoke tube 161 and the top plate of the bottom shell 100, so as to seal a gap between the smoke tube 161 and the bottom shell 100 and block a path through which noise is directly transmitted outwards.
The sealing ring 172 can include two subsections with different outer diameters, so that a step surface is formed outside the sealing ring 172, when the sealing ring is installed, the subsection with the shorter outer diameter extends into the through hole of the bottom case 100, the step surface is stopped against the top plate of the bottom case 100, a sealing structure with a plurality of combined surfaces can be formed, and the sound insulation effect is better.
This sealing washer 172 can be the silica gel material, and the sealing washer 172 of silica gel material is high temperature resistant, can prolong the ageing time of sealing washer 172 under the high temperature environment of tobacco pipe 161 department.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. A gas heater's device of making an uproar falls, its characterized in that includes:
the base member, be equipped with in the base member along a plurality of bloop chambeies of the working surface interval distribution of base member, just the working surface is equipped with the bloop, every the bloop chamber all through respectively corresponding the bloop communicates with the external world.
2. The gas water heater noise reducer of claim 1, wherein said working surface comprises a plurality of zones, at least two of said zones differing in at least one of a volume of said muffling chamber, a cross-sectional flow area of said muffling port, and a density of said muffling ports.
3. The gas water heater noise reducer of claim 2, wherein a plurality of said muffling chambers are arranged in an array along said working surface, each of said muffling chambers corresponding to a plurality of said muffling holes arranged in an array.
4. The gas water heater noise reduction device according to claim 2, wherein the volume V of said muffling chamber satisfies: 10mm 3 ≤V≤455mm 3 。
5. The gas water heater noise reducer according to claim 2, wherein the muffling hole is circular, and the aperture D satisfies: d is more than or equal to 0.6mm and less than or equal to 2 mm.
6. The gas water heater noise reducer of claim 2, wherein said working surface includes a first region and a second region;
the volume of the sound-absorbing cavity corresponding to the first area is V1, the aperture of the sound-absorbing hole corresponding to the first area is D1, and the number of the sound-absorbing holes corresponding to each sound-absorbing cavity corresponding to the first area is N1, so that the following requirements are met: 60mm 3 ≤V1≤455mm 3 ，0.6mm≤D1≤2mm，50≤N1≤75；
The volume of the sound-absorbing cavity corresponding to the second area is V2, the aperture of the sound-absorbing hole corresponding to the second area is D2, and the number of the sound-absorbing holes corresponding to each sound-absorbing cavity corresponding to the second area is N2, so that the following requirements are met: 10mm 3 ≤V2≤80mm 3 ，0.6mm≤D2≤2mm，76≤N2≤120。
7. The gas water heater noise reducer according to claim 2, wherein the projected areas of the two muffling chambers having different volumes on the working surface are different.
8. The gas water heater noise reduction device according to any one of claims 1 to 7, further comprising: first apron and second apron, first apron with the second apron inject the intake duct, the base member install in the intake duct.
9. The gas water heater noise reduction device according to any one of claims 1 to 7, further comprising:
the base body is arranged on the inner side of the front cover plate, and the working surface is a surface deviating from the front cover plate.
10. A gas water heater, comprising:
a bottom case;
the combustor, the heat exchanger and the fan system are arranged on the bottom shell;
a noise reducing device according to any of claims 1-9, located at least on the front side of the heat exchanger and the fan system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459498.2A CN114992859A (en) | 2022-04-27 | 2022-04-27 | Gas heater and device of making an uproar and gas heater fall |
| PCT/CN2023/090549 WO2023207961A1 (en) | 2022-04-27 | 2023-04-25 | Noise reduction device of gas water heater, and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459498.2A CN114992859A (en) | 2022-04-27 | 2022-04-27 | Gas heater and device of making an uproar and gas heater fall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114992859A true CN114992859A (en) | 2022-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210459498.2A Pending CN114992859A (en) | 2022-04-27 | 2022-04-27 | Gas heater and device of making an uproar and gas heater fall |
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| Country | Link |
|---|---|
| CN (1) | CN114992859A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207961A1 (en) * | 2022-04-27 | 2023-11-02 | 芜湖美的厨卫电器制造有限公司 | Noise reduction device of gas water heater, and gas water heater |
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| CN109458736A (en) * | 2018-12-24 | 2019-03-12 | 广东美的白色家电技术创新中心有限公司 | Gas water-heater housing and gas heater |
| CN216203331U (en) * | 2021-10-26 | 2022-04-05 | 广东万和新电气股份有限公司 | Water heater and combustor thereof |
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| CN101149296A (en) * | 2007-11-09 | 2008-03-26 | 北京航空航天大学 | Broad-band noise-reducing acoustic liner and its manufacture method |
| KR20140127546A (en) * | 2013-04-25 | 2014-11-04 | 린나이코리아 주식회사 | Masking noise apparatus for hanging boiler |
| CN204535107U (en) * | 2015-04-03 | 2015-08-05 | 芜湖美的厨卫电器制造有限公司 | For gas heater smoke evacuation system and there is its gas heater |
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| WO2023207961A1 (en) * | 2022-04-27 | 2023-11-02 | 芜湖美的厨卫电器制造有限公司 | Noise reduction device of gas water heater, and gas water heater |
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