CN113389747A - Submerged fan control method - Google Patents
Submerged fan control method Download PDFInfo
- Publication number
- CN113389747A CN113389747A CN202110881222.9A CN202110881222A CN113389747A CN 113389747 A CN113389747 A CN 113389747A CN 202110881222 A CN202110881222 A CN 202110881222A CN 113389747 A CN113389747 A CN 113389747A
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- Prior art keywords
- submerged
- submerged fan
- noise
- fan
- control method
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a submerged fan control method, which belongs to the technical field of fans and comprises the following steps: setting a noise curve generated by the submerged fan during operation; the controller controls the motor of the submerged fan to operate according to the noise curve; the noise detection device detects noise around the submerged fan and transmits noise information to the controller; the controller controls the submerged fan according to the received noise information, so that the noise generated by the operation of the submerged fan is controlled within a set noise curve range; according to the submerged fan control method, the rotating speed of the motor of the submerged fan is controlled through the controller, and the noise in the set range around the submerged fan is detected through the noise detection device, so that the noise generated by the operation of the submerged fan can be accurately controlled, when the surrounding environment is quite, the rotating speed of the motor of the submerged fan can be reduced, the noise generated by the operation of the submerged fan is reduced, and the influence on the working life of people is reduced.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a submerged fan control method.
Background
The submerged fan is also called a submerged blower and an underwater fan, and is mainly used for municipal river treatment and aeration for biological bacteria in sewage treatment.
Chinese patent document CN205803097U discloses a submersible microbial cycle reaction system, in which a submerged blower is arranged in water, an air outlet of the submerged blower is communicated with an aeration disc through an air pipe, and aeration is performed toward the water body through the aeration disc.
However, the submerged blower is installed in water to reduce noise to some extent, but it may affect people's life if the environment is relatively quiet.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that when the submerged fan in the prior art is used in a place close to the production and life of people and the external environment is relatively quiet, the operation of the submerged fan brings troubles to the work and life of people, and thus the submerged fan control method is provided.
In order to solve the technical problem, the invention provides a submerged fan control method, which comprises the following steps:
setting a noise curve generated by the submerged fan during operation;
the controller controls the operation of a motor of the submerged fan according to a set noise curve;
the noise detection device detects noise around the operating submerged fan and transmits noise information to the controller;
the controller controls the rotating speed of the motor of the submerged fan according to the received noise information, so that the noise generated by the operation of the submerged fan is controlled within a set noise curve range.
Optionally, the noise curve is a 24 hour ambient noise curve when no submerged fan is involved.
Optionally, the submerged fan has intake stack and air-out pipeline, intake stack with the air-out pipeline has the part that upwards extends to above the surface of water respectively, wherein the air-out pipeline stretches into again to pending water after extending to the surface of water top in, be provided with the check valve that switches on towards pending water direction on the pipeline section that is located the surface of water top of air-out pipeline.
Optionally, the noise detection device is arranged in a range of a set distance from the submerged fan, and the noise detection device is used for detecting noise generated by the submerged fan.
Optionally, the underwater portions of the air inlet pipeline and the air outlet pipeline of the submerged fan are respectively provided with a silencer.
Optionally, the motor of the submerged fan is vertically arranged above the fan body.
Optionally, the air inlet duct and the air outlet duct extend upwards from two sides of the motor respectively.
Optionally, the air inlet pipeline and the air outlet pipeline are fixedly connected above the water surface through a support respectively.
Optionally, three supporting legs for supporting are arranged below the fan body of the submerged fan.
Optionally, the bottom of the support leg is provided with a rubber pad.
The technical scheme of the invention has the following advantages:
1. according to the submerged fan control method provided by the invention, the rotating speed of the motor of the submerged fan is controlled through the controller, and the noise in the set range around the submerged fan is detected through the noise detection device, so that the noise generated by the operation of the submerged fan can be accurately controlled, and therefore, when the surrounding environment is quite quiet, the noise generated by the operation of the submerged fan can be reduced by reducing the rotating speed of the motor of the submerged fan, and the influence on the working life of people is reduced.
2. According to the control method of the submerged fan control method provided by the invention, the controller controls the rotating speed of the motor of the submerged fan according to the noise curve, and the noise generated by the submerged fan to the periphery is retrieved in real time through the noise detection device, so that the rotating speed of the motor of the submerged fan is timely adjusted, the noise generated when the submerged fan operates is in a controllable range, and the trouble brought to the work and life of people is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a system layout diagram of an embodiment of a submerged fan control method according to the present invention.
Fig. 2 is a front view of the submerged fan.
Fig. 3 is a schematic view of a control noise curve of the underwater fan of the present invention.
Description of reference numerals:
1. a submerged fan; 2. a noise detection device; 3. a controller; 4. an air inlet pipeline; 5. an air outlet pipeline; 6. a one-way valve; 7. a muffler; 8. a support leg; 9. and a pressure gauge.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting 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 present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The submerged fan control method provided by the embodiment is used for sewage treatment in residential areas, schools, hospitals and other places.
The control method of the submerged fan control method provided by the embodiment comprises the following steps:
first, a noise curve generated by the submerged fan 1 during operation is set, and the noise curve is a noise curve of the surrounding environment for 24 hours when the submerged fan 1 is not involved, as shown in fig. 3. As shown in fig. 3, the abscissa is 24 hours of the day, and the ordinate is the decibel value of noise.
Secondly, the controller 3 controls the rotating speed of the motor of the submerged fan 1 according to the noise curve.
Thirdly, the noise detection device 2 detects noise around the operating submerged fan 1 and transmits noise information to the controller 3.
Thirdly, the controller 3 controls the rotating speed of the motor of the submerged fan 1 according to the received noise information, so that the noise generated by the operation of the submerged fan 1 is controlled within the noise curve range; specifically, when the rotating speed of the motor of the submerged fan 1 is controlled, the noise generated by the motor is within the detection range of the noise detection device 2 and does not exceed 130% of the noise curve when the submerged fan 1 is not involved, and when the noise detection device 2 detects that the noise reaches 130% of the original noise curve, the controller 3 reduces the generated noise by reducing the rotating speed of the submerged fan 1. The value of 130% may be set according to actual conditions in the field.
According to the submerged fan control method provided by the embodiment, the controller 3 controls the motor rotating speed of the submerged fan 1 according to the noise curve, and retrieves the noise generated by the submerged fan 1 to the periphery in real time through the noise detection device 2, so that the rotating speed of the motor of the submerged fan 1 is timely adjusted, the noise generated when the submerged fan 1 operates is within a controllable range, and the trouble brought to the work and life of people is reduced.
The submerged fan control method provided by the embodiment controls the rotating speed of the motor of the submerged fan 1 through the controller 3, and detects the noise in the set range around the submerged fan 1 through the noise detection device 2, so that the noise generated when the submerged fan 1 operates can be accurately controlled, when the surrounding environment is quite, the rotating speed of the motor of the submerged fan 1 can be reduced, the noise generated when the submerged fan 1 operates is reduced, and the influence on the work and life of people is reduced.
As shown in fig. 1, a specific implementation manner of the submerged fan control method provided in this embodiment includes: the submerged fan comprises a submerged fan 1, wherein a noise detection device 2 is arranged in a set distance range of the submerged fan 1, and the noise detection device 2 is used for detecting noise around the submerged fan 1 and specifically can be a decibel detector. The set distance is determined according to the actual situation of the site, and specifically can be within the range of 5 meters to 20 meters. Further comprising: and the controller 3 is respectively electrically connected with the motor of the submerged fan 1 and the noise detection device 2, and after receiving the noise information of the noise detection device 2, the controller 3 controls the rotating speed of the motor of the submerged fan 1 according to the noise information.
As shown in fig. 2, the submerged fan 1 has an air inlet duct 4 and an air outlet duct 5, and the air inlet duct 4 and the air outlet duct 5 respectively have a portion extending upward above the water surface; the air outlet pipeline 5 extends to the position above the water surface and then extends into the water body to be treated, and a one-way valve 6 which is communicated towards the direction of the water body to be treated is arranged on a pipe section, which is positioned above the water surface, of the air outlet pipeline 5. In addition, as an alternative embodiment, the check valve 6 may be omitted, or replaced with another valve, such as a solenoid valve or the like.
As shown in fig. 2, on the pipe section of the air outlet pipeline 5 extending out of the water surface, a pressure gauge 9 is arranged, the pressure gauge 9 is electrically connected with the controller 3, the outlet air pressure of the submerged fan 1 can be transmitted to the controller 3 in real time through the pressure gauge 9, and therefore the controller 3 can control the submerged fan 1 more conveniently. In addition, as an alternative embodiment, the pressure gauge 9 may not be electrically connected to the controller 3, and the pressure gauge 9 may be omitted.
As shown in fig. 2, a silencer 7 is respectively disposed on the underwater portion of the air inlet duct 4 and the air outlet duct 5 of the submerged fan 1, and the silencer 7 is used for reducing wind noise at the inlet and the outlet of the submerged fan 1. In addition, as an alternative embodiment, the silencer 7 may be eliminated or provided only at the inlet or outlet.
As shown in fig. 2, the motor of the submerged fan 1 is vertically arranged above the fan body, and the air inlet duct 4 and the air outlet duct 5 respectively extend upwards from two sides of the motor. And the air inlet pipeline 4 and the air outlet pipeline 5 are fixedly connected above the water surface through a bracket respectively. At this moment, the fan body of submerged fan 1 need not to adopt fixed knot to construct and be connected with the bottom, can make the steady support of fan body at the bottom.
As shown in fig. 2, three support legs 8 for supporting are arranged below the fan body of the submerged fan 1, and rubber pads are arranged at the bottoms of the support legs 8. Support through three stabilizer blade 8 and can guarantee to all land, make the more firm support of fan body at the bottom. Vibration during operation of the submerged fan 1 can be buffered through the rubber pads, and equipment damage is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. A submerged fan control method is characterized by comprising the following steps:
setting a noise curve generated by the submerged fan (1) during operation;
the controller (3) controls the operation of the motor of the submerged fan (1) according to a set noise curve;
the noise detection device (2) detects noise around the operating submerged fan (1) and transmits noise information to the controller (3);
the controller (3) controls the rotating speed of the motor of the submerged fan (1) according to the received noise information, so that the noise generated by the operation of the submerged fan (1) is controlled within a set noise curve range.
2. The submerged fan control method according to claim 1, characterised in that the noise curve is a 24 hour ambient noise curve without the involvement of the submerged fan (1).
3. The submerged fan control method according to claim 1 or 2, characterized in that the submerged fan (1) is provided with an air inlet pipeline (4) and an air outlet pipeline (5), the air inlet pipeline (4) and the air outlet pipeline (5) are respectively provided with a part which extends upwards to above the water surface, wherein the air outlet pipeline (5) extends above the water surface and then extends into the water body to be treated, and a pipe section of the air outlet pipeline (5) above the water surface is provided with a one-way valve (6) which is communicated towards the direction of the water body to be treated.
4. The submerged fan control method according to claim 3, characterized in that the noise detection device (2) is arranged within a set distance range from the submerged fan (1), and the noise detection device (2) is used for detecting the noise generated by the submerged fan (1).
5. The submerged fan control method according to claim 3, characterised in that the submerged fan (1) is provided with silencers (7) on the submerged part of the inlet duct (4) and outlet duct (5), respectively.
6. The submerged fan control method according to claim 3, characterized in that the motor of the submerged fan (1) is vertically arranged above the fan body.
7. The submerged fan control method according to claim 6, characterised in that the air inlet duct (4) and the air outlet duct (5) extend upwards from both sides of the motor, respectively.
8. The submerged fan control method according to claim 7, characterized in that the air inlet duct (4) and the air outlet duct (5) are fixedly connected above the water surface by a bracket respectively.
9. The submerged fan control method according to claim 3, characterized in that three support legs (8) for supporting are arranged below the fan body of the submerged fan (1).
10. The submerged fan control method according to claim 9, characterised in that the bottom of the legs (8) are provided with rubber pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881222.9A CN113389747A (en) | 2021-08-02 | 2021-08-02 | Submerged fan control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881222.9A CN113389747A (en) | 2021-08-02 | 2021-08-02 | Submerged fan control method |
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| Publication Number | Publication Date |
|---|---|
| CN113389747A true CN113389747A (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110881222.9A Pending CN113389747A (en) | 2021-08-02 | 2021-08-02 | Submerged fan control method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252902Y (en) * | 1996-02-02 | 1997-04-23 | 张一健 | Underwater lobed rotor blower |
| CN103940029A (en) * | 2014-03-24 | 2014-07-23 | 广东美的制冷设备有限公司 | Natural wind air conditioner and control method thereof |
| CN104566794A (en) * | 2014-12-17 | 2015-04-29 | 美的集团股份有限公司 | Room air conditioner control method and system as well as air conditioner adopting method and system |
| CN104748296A (en) * | 2014-01-01 | 2015-07-01 | 美的集团股份有限公司 | Air conditioner and control method thereof |
| CN109780699A (en) * | 2019-01-31 | 2019-05-21 | 珠海荣邦电子科技有限公司 | Method for controlling number of revolution and device |
| CN110735308A (en) * | 2018-07-02 | 2020-01-31 | 青岛海尔滚筒洗衣机有限公司 | Clothes treating apparatus and operation control method thereof |
| CN210480996U (en) * | 2019-05-30 | 2020-05-08 | 苏州硕亚环保科技有限公司 | Submerged aeration device |
-
2021
- 2021-08-02 CN CN202110881222.9A patent/CN113389747A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252902Y (en) * | 1996-02-02 | 1997-04-23 | 张一健 | Underwater lobed rotor blower |
| CN104748296A (en) * | 2014-01-01 | 2015-07-01 | 美的集团股份有限公司 | Air conditioner and control method thereof |
| CN103940029A (en) * | 2014-03-24 | 2014-07-23 | 广东美的制冷设备有限公司 | Natural wind air conditioner and control method thereof |
| CN104566794A (en) * | 2014-12-17 | 2015-04-29 | 美的集团股份有限公司 | Room air conditioner control method and system as well as air conditioner adopting method and system |
| CN110735308A (en) * | 2018-07-02 | 2020-01-31 | 青岛海尔滚筒洗衣机有限公司 | Clothes treating apparatus and operation control method thereof |
| CN109780699A (en) * | 2019-01-31 | 2019-05-21 | 珠海荣邦电子科技有限公司 | Method for controlling number of revolution and device |
| CN210480996U (en) * | 2019-05-30 | 2020-05-08 | 苏州硕亚环保科技有限公司 | Submerged aeration device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20210914 |