阅读说明：本技术 一种阻尼***、燃气热水器及其控制方法 (Damping silencer, gas water heater and control method of gas water heater ) 是由 韩君庆 潘叶江 于 2020-06-18 设计创作，主要内容包括：本发明公开了一种阻尼消声器、燃气热水器及其控制方法,其中阻尼消声器包括至少一组阻尼消声单元和调节组件,所述阻尼消声单元至少包括并排设置的第一消声片和第二消声片,所述第一消声片和所述第二消声片之间形成有间隙,所述间隙用于供气流和/或声音通过,所述调节组件与所述阻尼消声单元连接,用于调节所述阻尼消声单元的张紧力。本发明的阻尼消声器,其结构简单、巧妙,通过阻尼消声单元的共振吸声消音,使得阻尼消声器具有显著的吸声消声效果；另外,通过调节组件来调节阻尼消声单元的张紧力,使得阻尼消声器能够适应性调整其吸声消声频段,提升阻尼消声器的适应性和精准降噪效果。(The invention discloses a damping silencer, a gas water heater and a control method of the gas water heater, wherein the damping silencer comprises at least one group of damping silencing units and an adjusting assembly, each damping silencing unit at least comprises a first silencing sheet and a second silencing sheet which are arranged side by side, a gap is formed between each first silencing sheet and each second silencing sheet, the gap is used for allowing air flow and/or sound to pass through, and the adjusting assembly is connected with the damping silencing units and is used for adjusting the tension force of the damping silencing units. The damping silencer has a simple and ingenious structure, and has a remarkable sound absorption and silencing effect through the resonance sound absorption and silencing of the damping silencing unit; in addition, the tensioning force of the damping noise elimination unit is adjusted through the adjusting assembly, so that the damping muffler can adaptively adjust the sound absorption and noise elimination frequency band, and the adaptability and the accurate noise reduction effect of the damping muffler are improved.)

1. The damping muffler is characterized in that the damping muffler (100) comprises at least one group of damping muffling units (1) and an adjusting assembly (2), the damping muffling units (1) at least comprise first muffling sheets (11) and second muffling sheets (12) which are arranged side by side, a gap (101) is formed between the first muffling sheets (11) and the second muffling sheets (12), the gap (101) is used for allowing air flow and/or sound to pass through, and the adjusting assembly (2) is connected with the damping muffling units (1) and used for adjusting the tension of the damping muffling units (1).

2. A damped muffler according to claim 1, wherein the thickness of the first muffler plate (11) is 500 μm to 2000 μm, and the thickness of the second muffler plate (12) is less than or equal to the thickness of the first muffler plate (11).

3. A damping muffler according to claim 1, wherein the damping muffler unit (1) further comprises a third muffler plate (13), the third muffler plate (13) is arranged side by side on the side of the second muffler plate (12) away from the first muffler plate (11), and a gap (101) is formed between the third muffler plate (13) and the second muffler plate (12).

4. A damped muffler according to claim 3, wherein the thickness of the third muffling sheet (13) is greater than or equal to the thickness of the second muffling sheet (12), and the thickness of the second muffling sheet (12) is greater than or equal to the thickness of the first muffling sheet (11).

5. The damping muffler is characterized in that the adjusting assembly (2) comprises an adjusting bracket (21) capable of telescopic movement and a driver, a plurality of groups of damping muffling units (1) are arranged in the adjusting bracket (21) side by side, two ends of each damping muffling unit (1) are respectively connected with two opposite side walls in the adjusting bracket (21), a gap (101) is formed between every two adjacent groups of damping muffling units (1), the driver is connected with the adjusting bracket (21) and is used for driving the adjusting bracket (21) to perform telescopic movement, and the movement of the adjusting bracket (21) can adjust the tension of the damping muffling units (1).

6. The damping muffler according to claim 5, wherein the adjusting bracket (21) comprises a first adjusting bracket (211) and a second adjusting bracket (212), the two ends of the damping muffler unit (1) are respectively connected with the first adjusting bracket (211) and the second adjusting bracket (212), and the driver is connected with the first adjusting bracket (211) or the second adjusting bracket (212) and is used for driving the first adjusting bracket (211) and the second adjusting bracket (212) to move relatively.

7. The damping muffler according to claim 5, wherein the adjusting assembly (2) further comprises a detecting unit (22), and the detecting unit (22) is disposed on the adjusting bracket (21) and used for detecting the tension of the damping muffler unit (1).

8. A gas water heater comprises a water heater body, a burner (200), a fan and a controller, wherein the water heater body is provided with an air inlet channel and a smoke exhaust channel which are respectively communicated with an air inlet and a smoke exhaust of the burner (200), and the gas water heater is characterized by further comprising a damping silencer according to any one of claims 1 to 7, wherein the damping silencer is arranged between the air inlet channel and the air inlet of the burner (200) and/or between the smoke exhaust channel and the smoke exhaust of the burner (200), and the controller is respectively electrically connected with the fan and an adjusting component (2) of the damping silencer.

9. A control method of a gas water heater, characterized in that it applies a gas water heater as claimed in claim 8, the control method comprising the steps of:

s1: starting the gas water heater to work;

s2: acquiring working parameters of a fan, wherein the working parameters comprise fan rotating speed or fan driving voltage;

s3: the acquired operating parameters are compared with at least one reference value, and the operating state of the damping muffler is controlled based on the comparison result.

10. The control method of a gas water heater according to claim 9, wherein in step S3, the reference values include a minimum value and a maximum value, and if the obtained operating parameter is less than or equal to the minimum value, the damping noise reduction mode is not turned on; and if the working parameters of the fan are larger than the maximum value, the damping noise reduction mode is started, and the tension of the damping muffler is adjusted to be maximum.

Technical Field

The invention relates to the technical field of water heaters, in particular to a silencing technology of a gas water heater.

Background

The gas water heater is accepted by consumers due to the advantages of energy conservation, environmental protection and the like, but the noise problem of the gas water heater during operation is also troubled. It is understood that the national standard requires no more than 65 db for the combustion noise of a gas water heater, while the noise generated by a common gas water heater during operation is generally more than 55 db. According to the medical experiment data, the noise value exceeds 50 decibels, which is equivalent to that a person speaks loudly, and normal life is influenced; 60-70 dB is equivalent to standing on a street with calm Sichuan streams, which can cause people to be upset and confused and not be concentrated; above 90 db is equivalent to a noisy bar, and if the person lives in such a noisy environment for a long time, the hearing is seriously affected and other diseases such as cardiovascular diseases occur.

Along with the improvement of the requirements of people on the living quality, users pay more and more attention to the size of the noise parameter of the gas water heater when purchasing the gas water heater, so that the quality of the noise performance becomes a big key factor influencing the product competitiveness. Therefore, the noise becomes a technical problem to be solved urgently in the existing gas water heater.

In addition, the existing noise reduction measures such as sound absorption cotton and sound insulation and sound absorption cannot be adjusted adaptively according to noise frequency bands, and are poor in adaptability and noise reduction effect, so that user experience is influenced.

Disclosure of Invention

The invention aims to solve one of the problems in the prior art at least to a certain extent, and therefore the invention provides a damping silencer which is simple and ingenious in structure, has a remarkable sound absorption and silencing effect, can adaptively adjust the sound absorption and silencing frequency band of the damping silencer and is stronger in adaptability.

The invention also provides a gas water heater with the damping silencer, which can obviously reduce indexes such as noise of the gas water heater, improve user experience and improve product competitiveness of companies.

The invention also provides a control method of the gas water heater, which realizes the adjustment of the sound absorption and silencing frequency band of the damping silencer according to the working parameters of the fan by linking the damping silencer and the fan, improves the adaptability and pertinence of products, obviously improves the noise reduction effect of the water heater and improves the user experience.

According to the damping muffler that provides above-mentioned, it realizes through following technical scheme:

the damping muffler comprises at least one group of damping muffling units and an adjusting assembly, wherein each damping muffling unit at least comprises a first muffling sheet and a second muffling sheet which are arranged side by side, a gap is formed between each first muffling sheet and each second muffling sheet and is used for allowing air flow and/or sound to pass through, and the adjusting assembly is connected with the damping muffling units and is used for adjusting the tension of the damping muffling units.

In some embodiments, the first sound-deadening sheet has a thickness of 500 to 2000 μm, and the second sound-deadening sheet has a thickness less than or equal to the thickness of the first sound-deadening sheet.

In some embodiments, the damping and noise elimination unit further includes a third noise elimination sheet, the third noise elimination sheet is arranged side by side on the side of the second noise elimination sheet far away from the first noise elimination sheet, and a gap is formed between the third noise elimination sheet and the second noise elimination sheet.

In some embodiments, the third sound-deadening sheet has a thickness greater than or equal to a thickness of the second sound-deadening sheet, and the second sound-deadening sheet has a thickness greater than or equal to a thickness of the first sound-deadening sheet.

In some embodiments, the adjusting assembly comprises an adjusting support and a driver, the adjusting support is provided with a plurality of groups of damping silencing units side by side, two ends of each damping silencing unit are respectively connected with two opposite side walls in the adjusting support, a gap is formed between every two adjacent damping silencing units, the driver is connected with the adjusting support and used for driving the adjusting support to perform telescopic motion, and the motion of the adjusting support can adjust the tension of the damping silencing units.

In some embodiments, the adjusting bracket comprises a first adjusting bracket and a second adjusting bracket, two ends of the damping and noise elimination unit are respectively connected with the first adjusting bracket and the second adjusting bracket, and the driver is connected with the first adjusting bracket or the second adjusting bracket and used for driving the first adjusting bracket and the second adjusting bracket to move relatively.

In some embodiments, the adjusting assembly further comprises a detecting unit, and the detecting unit is arranged on the adjusting bracket and used for detecting the tension of the damping and noise elimination unit.

According to the gas heater who provides above-mentioned, it realizes through following technical scheme:

the utility model provides a gas water heater, includes water heater body, combustor, fan and controller, the water heater body is equipped with inlet channel and exhaust smoke channel, inlet channel with exhaust smoke channel communicates respectively the air inlet and the exhaust port of combustor, wherein still include as above the damping silencer inlet channel with between the air inlet of combustor and/or exhaust smoke channel with install between the exhaust port of combustor the damping silencer, the controller respectively with the fan with the adjusting part electricity of damping silencer is connected.

According to the control method of the gas water heater, the control method is realized through the following technical scheme:

a control method of a gas water heater, which applies a gas water heater as described above, the control method comprising the steps of:

s1: starting the gas water heater to work;

s2: acquiring working parameters of a fan, wherein the working parameters comprise fan rotating speed or fan driving voltage;

s3: the acquired operating parameters are compared with at least one reference value, and the operating state of the damping muffler is controlled based on the comparison result.

In some embodiments, in step S3, the reference value includes a minimum value and a maximum value, and if the obtained operating parameter is less than or equal to the minimum value, the damping noise reduction mode is not turned on; and if the working parameters of the fan are larger than the maximum value, the damping noise reduction mode is started, and the tension of the damping muffler is adjusted to be maximum.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the damping silencer has a simple and ingenious structure, and has a remarkable sound absorption and silencing effect through the resonance sound absorption and silencing of the damping silencing unit;

2. the tensioning force of the damping noise elimination unit is adjusted through the adjusting assembly, so that the damping muffler can adjust the sound absorption noise elimination frequency band of the damping muffler in an adaptive mode, and the adaptability and the accurate noise reduction effect of the damping muffler are improved.

Drawings

FIG. 1 is a schematic structural view of a damping muffler in embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a damping and sound-eliminating unit and a connecting piece in the embodiment 1 of the invention;

FIG. 3 is a partial schematic structural view of a gas water heater 2 according to an embodiment of the present invention;

fig. 4 is a flowchart of a control method of a gas water heater in embodiment 3 of the present invention.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.

The noise of the gas water heater is mainly combustion noise and fan noise, wherein the peak value of the combustion noise accounts for the main part of the gas water heater. The combustion noise is wide in frequency band and has obvious peak components in a low-frequency range, in the combustion process, if combustible gas and air are in an optimal mixing state, the combustion roar of the combustible gas has the highest peak frequency, and if the combustion roar is not in the optimal mixing state, the roar peak frequency moves downwards, and most sound energy of the combustion roar is concentrated between 150 and 600 Hz. The research shows that: the peak noise wave band of the gas water heater is mainly concentrated between 150Hz and 600Hz and belongs to a low-frequency wave band.

To low frequency noise, its wavelength is longer, can easily walk around the barrier, and the tradition is inhaled the sound cotton and is had good noise reduction effect to high frequency noise, but is relatively poor to low frequency noise effect, consequently, the noise reduction measures such as cotton and sound insulation sound absorption are all very difficult noise reduction to the conventional use of inhaling.