CN110749106A - Active noise reduction fuel gas water heating device and method - Google Patents
Active noise reduction fuel gas water heating device and method Download PDFInfo
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- CN110749106A CN110749106A CN201910996227.9A CN201910996227A CN110749106A CN 110749106 A CN110749106 A CN 110749106A CN 201910996227 A CN201910996227 A CN 201910996227A CN 110749106 A CN110749106 A CN 110749106A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 238000010438 heat treatment Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002737 fuel gas Substances 0.000 title description 2
- 230000005236 sound signal Effects 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 87
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000001228 spectrum Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012545 processing 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Details Of Fluid Heaters (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses an active noise reduction gas water heating device and method, wherein the gas water heating device comprises a water heating device body, an electromagnetic valve, a pressure detector, a noise reduction assembly and a controller, wherein the electromagnetic valve is arranged at the water inlet end of the water heating device body, the pressure detector and the noise reduction assembly are respectively and electrically connected with the controller, the pressure detector is arranged on the electromagnetic valve and used for detecting the pressure difference of the electromagnetic valve and feeding back the detection result to the controller, and the controller controls the noise reduction assembly to send out noise reduction according to a feedback signal so that the noise reduction sound sent by the noise reduction assembly and the noise generated by the work of the gas water heating device are mutually offset. The gas water heater has a simple structure, and the noise reduction effect of the gas water heater is further improved by offsetting the working noise of the gas water heater through the noise reduction generated by the noise reduction assembly.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an active noise reduction gas water heating device and method.
Background
The gas water heater can generate noise due to gas combustion, water flow or fan operation in the working process, and the generated sound is directly transmitted outwards to generate noise pollution. In the related technologies, most of the noise reduction technologies for gas water heaters mainly adopt measures such as air-fuel ratio adjustment, fan rotating speed change and the like, but the noise reduction effect is not obvious; in addition, there is also active noise reduction, but at a higher cost.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore, the invention provides an active noise reduction gas water heating device which is simple in structure and can offset the working noise of the gas water heating device through the noise reduction generated by a noise reduction component so as to further improve the noise reduction effect of the gas water heating device.
In addition, the invention also provides an active noise reduction method of the gas water heating device, which is simple and feasible and can effectively improve the use experience of users.
The first object is achieved by the following technical scheme:
the utility model provides an actively fall gas hot water system of making an uproar, includes hot water system body and solenoid valve, wherein the solenoid valve sets up on the water inlet end of hot water system body, still includes pressure detector, falls make an uproar subassembly and controller, wherein pressure detector fall make an uproar subassembly respectively with controller electric connection, pressure detector sets up on the solenoid valve in order to be used for detecting the pressure differential of solenoid valve and with the testing result feedback to the controller, the controller is according to the signal control that feeds back fall make an uproar subassembly send fall the noise so that the noise that falls that the subassembly sent of making an uproar and the noise that gas hot water system work produced offset each other.
In some embodiments, the noise reduction assembly includes a power amplifier circuit and a speaker, wherein the power amplifier circuit and the speaker are electrically connected to the controller, the controller controls the power amplifier circuit to generate an audio signal with the same amplitude and frequency as the current noise and with an opposite phase according to the feedback signal, and the speaker processes the audio signal generated by the power amplifier circuit and then emits noise reduction.
In some embodiments, the speaker is disposed on the hot water unit body in proximity to the source of the generated noise.
In some embodiments, the number of speakers is one or more.
In some embodiments, a fan and a burner are disposed inside the hot water device body, and when the number of the speakers is plural, the speakers are disposed on an inner wall of the hot water device body, outside the fan, and/or at a position close to the burner.
The second objective is achieved by the following technical scheme:
an active noise reduction method of a gas water heating device is applied to the gas water heating device in any one of the above embodiments, and comprises the following steps:
starting the gas water heating device;
detecting the current differential pressure P of the electromagnetic valve;
calculating according to the current differential pressure P of the electromagnetic valve to obtain the gas flow q;
calculating according to the gas flow Q to obtain the heat load Q of the current gas water heating device;
calculating according to the calculated heat load Q of the current gas water heating device to obtain the current noise;
and sending noise reduction according to the calculated current noise so as to enable the sent noise reduction noise to be mutually offset with the noise generated by the operation of the gas water heating device.
In some embodiments, the calculating step of the gas flow q is:
inquiring relation curve data which is recorded in advance between the differential pressure P of the electromagnetic valve and the gas flow q on the controller;
and calculating according to the current differential pressure P of the electromagnetic valve and data recorded in the controller in advance to obtain the gas flow q.
In some embodiments, the heat load Q of the current gas-fired water heating apparatus is calculated by the following formula: q is Q × HL, where Q is the thermal load, Q is the gas flow, and HL is the gas low heating value.
In some embodiments, the step of emitting noise reduction is specifically:
inquiring relation curve data which is recorded in advance between the heat load Q of the gas water heating device and the amplitude A and the frequency f of the noise on the controller;
calculating according to the calculated current heat load Q of the gas water heating device and data recorded on the controller in advance to obtain the amplitude A and the frequency f of the current noise;
and generating an audio signal with the same amplitude A and frequency f as the current noise and opposite phase, and then sending out noise reduction.
In some embodiments, the step of emitting noise reduction comprises:
judging whether a shutdown instruction is issued by a user or not, and if the shutdown instruction issued by the user is received, closing the hot water closing device;
and if the shutdown instruction issued by the user is not received, continuously detecting the current pressure difference P of the electromagnetic valve.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the active noise reduction gas water heating device is simple in structure, and the working noise of the gas water heating device can be offset through the noise reduction generated by the noise reduction assembly so as to further improve the noise reduction effect of the gas water heating device.
2. The active noise reduction method of the gas water heating device is simple and feasible, and can effectively improve the use experience of users.
Drawings
FIG. 1 is a schematic structural diagram of a gas-fired water heating apparatus according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an active noise reduction method of a gas water heater according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the claims of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the embodiment provides an active noise reduction gas water heater, which includes a water heater body 1 and an electromagnetic valve 2, wherein the electromagnetic valve 2 is disposed at a water inlet end of the water heater body 1, and further includes a pressure detector 4, a noise reduction assembly 5 and a controller, wherein the pressure detector 4 and the noise reduction assembly 5 are respectively electrically connected to the controller, the pressure detector 4 is disposed on the electromagnetic valve for detecting a pressure difference of the electromagnetic valve 2 and feeding back a detection result to the controller, and the controller controls the noise reduction assembly 5 to send out a noise reduction signal according to a fed back signal so that the noise reduction signal sent by the noise reduction assembly 5 and a noise generated by the operation of the gas water heater are mutually offset.
In this embodiment, the gas water heater may be a gas water heater or a wall-hanging stove, or may be set as another more suitable water heater according to actual requirements. The noise generated by the gas water heater mainly comprises fan noise, combustion noise and water flow noise, the frequency spectrum of the noise is relatively fixed, and the noise is mainly influenced by the combustion heat load to change, therefore, the frequency spectrum of the noise can be obtained by determining the combustion heat load, according to the principle that the amplitudes of the noise are mutually offset when the noise is the same in frequency spectrum and opposite in phase, the gas water heater of the embodiment is provided with pressure detectors 4 at two ends of an electromagnetic valve 2, a noise reduction component 5 is arranged in a water heater body 1, the pressure difference at two ends of the electromagnetic valve 2 is detected by the pressure detectors 4 and the detection result is fed back to a controller, the controller controls the noise reduction component 5 to send out noise reduction according to the fed back signal, so that the noise reduction component 5 sends out noise reduction and the noise generated by the gas water heater work are mutually offset, thereby reach the purpose of making an uproar, and then effectively improve gas water heater's noise reduction effect.
Further, the noise reduction assembly 5 comprises a power amplifier circuit 51 and a loudspeaker, wherein the power amplifier circuit 51 and the loudspeaker are respectively electrically connected with the controller, the controller controls the power amplifier circuit 51 to generate an audio signal which is the same as the current noise amplitude and frequency and has an opposite phase according to the fed back signal, and the loudspeaker sends out noise reduction after processing the audio signal generated by the power amplifier circuit 51.
In this embodiment, the gas water heater detects and calculates in a laboratory to obtain data of a relationship curve between a pressure difference of the electromagnetic valve 2 and a gas flow, and data of a relationship curve between a heat load of the gas water heater and an amplitude and a frequency of noise, and records the data on the controller, when the gas water heater is started, the gas water heater obtains a current gas flow according to the pressure difference between two ends of the electromagnetic valve 2 and pre-recorded data information, so that the controller calculates according to the current gas flow to obtain the heat load of the current gas water heater, further calculates according to the calculated heat load of the current gas water heater and the pre-recorded data on the controller to obtain the amplitude and the frequency of the current noise, and controls the power amplifier circuit 51 to generate a signal having the same amplitude and frequency as the current noise according to the calculated result, The audio signals with opposite phases are processed by the controller to control the loudspeaker to send out noise reduction signals after the audio signals generated by the power amplifier circuit 51 are processed.
Preferably, the loudspeaker is arranged on the water heating device body 1 and close to the position of the generated noise source, the design is reasonable, and the noise reduction effect of the gas water heating device can be further ensured.
Furthermore, the number of the loudspeakers is one or more, and the loudspeakers are reasonable and ingenious in design.
Specifically, a fan 6 and a burner 7 are arranged in the water heater body 1, and when the number of the speakers is multiple, the speakers are arranged on the inner wall of the water heater body 1, on the outer side of the fan 6 and/or at a position close to the burner 7, so that the structure is simple and the design is reasonable.
In this embodiment, the noise generated by the operation of the gas water heater mainly includes the fan noise, the combustion noise and the water flow noise, the frequency spectrum of the noise is relatively fixed, and the noise is mainly changed by the influence of the thermal load of the combustion, therefore, the gas water heater in this embodiment is provided with the fan 6 and the burner 7 inside the water heater body 1, one side of the burner 7 is provided with the master controller, the inner wall of the water heater body 1 is provided with the control panel, the number of the speakers includes five, but is not limited to five, and can also be selected as appropriate according to the actual needs, the five speakers are respectively a first speaker, a second speaker, a third speaker, a fourth speaker and a fifth speaker, wherein the first speaker is arranged at the position of the control panel on the inner wall of the water heater body 1, the second speaker is arranged on the inner wall of the water heater body 1 and the second speaker is arranged above the first speaker, the third speaker sets up in the outside of combustor 7 and the one end of keeping away from the master controller, and fourth speaker and fifth speaker set up the both sides at fan 6 respectively. In addition, in the embodiment, the gas water heating device detects the noise at the positions of the five loudspeakers through the noise spectrum analyzer to generate a relation curve between the thermal load of the gas water heating device and the amplitude and frequency of the noise.
Example two:
as shown in fig. 2, the present embodiment provides an active noise reduction method for a gas water heater, which is applied to the gas water heater according to the first embodiment, wherein noise generated by the operation of the gas water heater mainly includes wind noise, combustion noise and water flow noise, the frequency spectrum of the noise is relatively fixed, and the noise is mainly changed by the influence of the thermal load of combustion, so that the frequency spectrum of the noise can be obtained by determining the thermal load of combustion, and according to the principle that the amplitudes of the noise are mutually cancelled when the frequency spectrums are the same and opposite in phase, the gas water heater according to the present embodiment applies the gas water heater according to the first embodiment, and the noise of the current gas water heater is obtained by detecting the pressure difference between two ends of the electromagnetic valve, so that the controller controls the noise reduction device to generate noise reduction according to the calculated current noise to cancel the noise generated by the operation of the gas water heater, therefore, the purpose of noise reduction is achieved, the method is simple and feasible, and the use experience of a user can be effectively improved. The gas hot water system in this embodiment can be gas water heater or hanging stove, also can set up other more suitable hot water system according to actual demand.
The active noise reduction method of the gas water heating device comprises the following steps:
and step S101, starting the gas water heating device.
In this embodiment, before the gas water heater is started at a user for the first time, the gas water heater obtains relationship curve data between the pressure difference of the electromagnetic valve and the gas flow and relationship curve data between the thermal load of the gas water heater and the amplitude and frequency of noise through detection and calculation, and records the data on the controller, after the user starts the gas water heater for the first time, the gas water heater is electrified for self-checking, if the self-checking passes, data on the controller is loaded for operation, and if the self-checking does not pass, problem information is fed back to the controller to remind the user, and the gas water heater is turned off.
Step S102, detecting the pressure difference P of the current electromagnetic valve.
In this embodiment, the gas water heater heats and operates and counts down according to the time of predetermineeing, after the count down, starts pressure detector and detects the current pressure difference P at the solenoid valve both ends to feed back the testing result to the controller. The preset time in this embodiment is 1min or 2min, but is not limited to the above time, and an appropriate time value may be selected according to actual requirements.
And step S103, calculating according to the differential pressure P of the current electromagnetic valve to obtain the gas flow q.
In the embodiment, the relation curve data between the differential pressure P of the solenoid valve recorded on the controller in advance and the gas flow q is inquired, and the calculation is performed according to the current differential pressure P of the solenoid valve and the data recorded on the controller in advance, so as to obtain the gas flow q corresponding to the current differential pressure P of the solenoid valve, that is, the current gas flow q is calculated.
And step S104, calculating according to the gas flow Q to obtain the heat load Q of the current gas water heating device.
In the present embodiment, the heat load Q of the current gas-fired water heating apparatus is calculated by the following formula: q is Q × HL, where Q is the thermal load, Q is the gas flow, HL is the gas low heating value and HL is the coefficient, to calculate the thermal load Q of the current gas water heater.
And step S105, calculating according to the calculated heat load Q of the current gas water heating device to obtain the amplitude A and the frequency f of the current noise.
In the embodiment, the relation curve data between the heat load Q of the gas water heating device and the amplitude A and the frequency f of the noise recorded on the controller in advance is inquired, and the calculation is carried out according to the heat load Q of the current gas water heating device and the data recorded on the controller in advance, so that the amplitude A and the frequency f of the current noise corresponding to the heat load Q of the current gas water heating device are obtained.
And step S106, sending noise reduction according to the amplitude A and the frequency f of the current noise obtained by calculation so as to enable the sent noise reduction to be mutually offset with the noise generated by the operation of the gas water heating device.
In this embodiment, the controller controls the power amplifier circuit to generate an audio signal having the same phase as the amplitude a and the frequency f of the current noise and having the opposite phase according to the calculated amplitude a and the frequency f of the current noise, and controls the speaker to process the audio signal according to the audio signal generated by the power amplifier circuit to emit noise reduction, so that the noise reduction emitted by the speaker and the noise generated by the operation of the gas water heater are cancelled by each other, thereby achieving the purpose of noise reduction.
Step S107, judging whether a shutdown instruction is issued by a user, and if the shutdown instruction issued by the user is received, closing the gas water heating device;
if the shutdown instruction issued by the user is not received, returning to the step S102 to continuously detect the current pressure difference of the electromagnetic valve.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an actively fall gas hot water system of making an uproar, includes hot water system body (1) and solenoid valve (2), wherein solenoid valve (2) set up on the intake of hot water system body (1) holds, its characterized in that still includes pressure detector (4), falls subassembly (5) and controller of making an uproar, wherein pressure detector (4) fall subassembly (5) respectively with controller electric connection, pressure detector (4) set up on solenoid valve (2) in order to be used for detecting the pressure differential of solenoid valve (2) and with the testing result feedback extremely the controller, the controller is according to the signal control that feeds back fall subassembly (5) send and fall the noise so that fall the noise that subassembly (5) of making an uproar sent with the produced noise of gas hot water system work offsets each other.
2. The active noise reduction gas water heating device according to claim 1, wherein the noise reduction assembly (5) comprises a power amplifier circuit (51) and a speaker, wherein the power amplifier circuit (51) and the speaker are electrically connected to the controller respectively, the controller controls the power amplifier circuit (51) to generate an audio signal with the same amplitude and frequency as the current noise and opposite phase according to the feedback signal, and the speaker processes the audio signal generated by the power amplifier circuit (51) and then emits noise reduction.
3. An active noise reduction gas-fired water heating apparatus according to claim 2, characterized in that the speaker is arranged on the water heating apparatus body (1) in a position close to the source of the generated noise.
4. An active noise reduction gas-fired water heating apparatus according to claim 3, wherein the number of said speakers is one or more.
5. An active noise reduction gas water heater according to claim 4, characterized in that a fan (6) and a burner (7) are arranged in the water heater body (1), and when the number of the speakers is plural, the speakers are arranged on the inner wall of the water heater body (1), outside the fan (6) and/or close to the burner (7).
6. An active noise reduction method of a gas water heater, which is applied to the gas water heater according to any one of claims 1 to 5, and comprises the following steps:
starting the gas water heating device;
detecting the current differential pressure P of the electromagnetic valve;
calculating according to the current differential pressure P of the electromagnetic valve to obtain the gas flow q;
calculating according to the gas flow Q to obtain the heat load Q of the current gas water heating device;
calculating according to the calculated heat load Q of the current gas water heating device to obtain the current noise;
and sending noise reduction according to the calculated current noise so as to enable the sent noise reduction noise to be mutually offset with the noise generated by the operation of the gas water heating device.
7. The active noise reduction method of the gas water heating device according to claim 6, wherein the calculation step of the gas flow q is as follows:
inquiring relation curve data which is recorded in advance between the differential pressure P of the electromagnetic valve and the gas flow q on the controller;
and calculating according to the current differential pressure P of the electromagnetic valve and data recorded in the controller in advance to obtain the gas flow q.
8. The active noise reduction method of the gas water heater according to claim 6, wherein the current heat load Q of the gas water heater is calculated by the following formula: q is Q × HL, where Q is the thermal load, Q is the gas flow, and HL is the gas low heating value.
9. The active noise reduction method of a gas fired water heating apparatus according to claim 6, wherein the step of emitting noise reduction is specifically:
inquiring relation curve data which is recorded in advance between the heat load Q of the gas water heating device and the amplitude A and the frequency f of the noise on the controller;
calculating according to the calculated current heat load Q of the gas water heating device and data recorded on the controller in advance to obtain the amplitude A and the frequency f of the current noise;
and generating an audio signal with the same amplitude A and frequency f as the current noise and opposite phase, and then sending out noise reduction.
10. The active noise reduction method of a gas fired water heater according to claim 6, wherein the step of emitting noise reduced water comprises:
judging whether a shutdown instruction is issued by a user or not, and if the shutdown instruction issued by the user is received, closing the gas water heating device;
and if the shutdown instruction issued by the user is not received, continuously detecting the current pressure difference P of the electromagnetic valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910996227.9A CN110749106A (en) | 2019-10-18 | 2019-10-18 | Active noise reduction fuel gas water heating device and method |
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| CN201910996227.9A CN110749106A (en) | 2019-10-18 | 2019-10-18 | Active noise reduction fuel gas water heating device and method |
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| JP2003173191A (en) * | 2001-12-06 | 2003-06-20 | Ishikawajima Harima Heavy Ind Co Ltd | Noise reducer and noise reducing method |
| CN201787730U (en) * | 2010-08-27 | 2011-04-06 | 广东万家乐燃气具有限公司 | Silencer of gas water heater |
| CN102538174A (en) * | 2012-03-01 | 2012-07-04 | 艾欧史密斯(中国)热水器有限公司 | Low-noise gas instantaneous water heater |
| CN107101383A (en) * | 2017-05-13 | 2017-08-29 | 广东万家乐燃气具有限公司 | A kind of gas heater production regulation detection device |
| CN108376542A (en) * | 2018-04-19 | 2018-08-07 | 广东万家乐燃气具有限公司 | A kind of gas heater of active noise reduction |
| CN211400331U (en) * | 2019-10-18 | 2020-09-01 | 华帝股份有限公司 | Active noise reduction gas water heating device |
-
2019
- 2019-10-18 CN CN201910996227.9A patent/CN110749106A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650534A (en) * | 1992-07-31 | 1994-02-22 | Matsushita Electric Ind Co Ltd | Hot water feeder |
| JPH0830279A (en) * | 1994-07-15 | 1996-02-02 | Kubota Corp | Active muffling device |
| US5571239A (en) * | 1994-11-30 | 1996-11-05 | Nippondenso Co., Ltd. | Noise control apparatus for internal combustion engine |
| JPH08177451A (en) * | 1994-12-20 | 1996-07-09 | Kubota Corp | Noise decreasing device for enclosed type engine |
| JP2003173191A (en) * | 2001-12-06 | 2003-06-20 | Ishikawajima Harima Heavy Ind Co Ltd | Noise reducer and noise reducing method |
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