CN104265663A - Low-noise integrated centrifugal fan - Google Patents
Low-noise integrated centrifugal fan Download PDFInfo
- Publication number
- CN104265663A CN104265663A CN201410538123.0A CN201410538123A CN104265663A CN 104265663 A CN104265663 A CN 104265663A CN 201410538123 A CN201410538123 A CN 201410538123A CN 104265663 A CN104265663 A CN 104265663A
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- China
- Prior art keywords
- flattening
- motor
- impeller
- main shaft
- fan
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Classifications
-
- 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
-
- 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
- F04D29/663—Sound attenuation
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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 relates to a low-noise integrated centrifugal fan. The low-noise integrated centrifugal fan comprises a volute and a main shaft which are used for installing a fan impeller and a motor; one lateral side of an opening of the volute is fixedly connected with an inlet diversion device; the motor is a flattened motor which is formed by a flattened motor rotor and a flattened motor stator; two ends of the main shaft are arranged on the volute and the inlet diversion device through supporting bearings respectively; the main shaft is provided with the impeller which is driven by the flattened motor rotor to rotate and apply work so as to enable the mechanical energy to be converted into the pressure energy and the kinetic energy of the conveyed gas. According to the low-noise integrated centrifugal fan, all the functions of the traditional centrifugal fan can be implemented, meanwhile the size can be small, the weight can be light, the installation is convenient, the detachment and the installation are easy, a series of fans can be designed, and the industrialization of the integrated centrifugal fan can be possible.
Description
Technical field
The present invention relates to a kind of centrifugal blower, especially a kind of low-noise centrifugal fan for naval vessel.
Background technique
In conventional fan design, performance parameter according to blower fan carries out pneumatic design, carry out fan design, the type selecting of fan driving motor, the type selecting etc. of isolation mounting afterwards, the each part design of blower fan system is segmentation, blower fan manufacturer only produces blower fan, and necessary electromotor is outsourcing, and the applying working condition condition of motor manufacturer to motor is not known, there is communication not in place, lack and blower fan whole matching is considered.The process of such design is relatively simple, due to design process segmentation, causes between blower fan and motor and there is power match problem, in vibration, therefore easily causes axle system and unit vibration to become large, do not reach design effect.In addition, because design is that under ship condition, many blower fans can be in inclined working condition running state based on nominal parameter design, blower fan and system matches are often short of to some extent, fan performance regulative mode is also negligent of consider, in use, fan vibration noise comparatively design conditions often raises to some extent.
Under the prerequisite ensureing fan performance parameter constant, development meets the silent ventilator of ship vibration noise requirements, realizes the little and lightweight target of novel fan volume, develops high power density blower fan, for low noise ship fan design provides technical support.There is following defect in existing centrifugal fan structure:
(1) along with the development of technology and the raising of understanding, the conventional fan Optimal Structure Designing for the purpose of vibration and noise reducing enters bottleneck, is badly in need of breaking through conventional fan structural design;
(2) conventional centrifugal fan vibration noise is large, volume large, preponderance, is low power density equipment;
(3) conventional centrifugal draught fan impeller uses the mode of cantilever support, and in impeller operation process, axle system is stable not, easily produces excessive vibration.
Summary of the invention
The present invention is in order to overcome above shortcoming, and provide a kind of low noise integration centrifugal blower, under the prerequisite ensureing fan performance parameter constant, development meets the silent ventilator of ship vibration noise requirements, realizes the little and lightweight target of novel fan volume.
For achieving the above object, technological scheme of the present invention is: a kind of low noise integration centrifugal blower, comprise the spiral case for installing draught fan impeller and motor and main shaft, opening one side of spiral case is fixedly connected with inducer, motor is that flattening motor, the main shaft two ends be made up of flattening rotor and flattening motor stator are installed in spiral case and inducer respectively by block bearing, main shaft is equipped with impeller, impeller is done work, by changes mechanical energy for being transferred gas pressure energy and kinetic energy by flattening rotor driven rotary.
Flattening rotor is installed on main shaft, and flattening motor stator is installed on spiral case and flattening electric machine casing respectively, makes flattening motor stator and scroll casing shape integralization.
Flattening motor stator is installed on spiral case, and flattening rotor is installed on impeller, makes flattening rotor and impeller integral fusion.
Flattening motor is flattening magneto or flattening asynchronous motor.
The beneficial effect that technical solution of the present invention is brought:
(1) integrated centrifugal fan structure of the present invention is compact, and volume little (can be more than drop by half than original same parameter blower fan volume), lightweight (can decline more than 50% than original same parameter blower fan), specific power is high.
(2) integrated centrifugal blower of the present invention changes cantilever support mode traditional for impeller into stable two fulcrum support modes, significantly reduces low-frequency vibration,
(3) integrated centrifugal blower mounting type of the present invention is flexible, not by spatial constraints, can carry out unrestricted choice according to engineering demand.
(4) integrated centrifugal blower of the present invention eliminates original motor radiating structure, uses blower fan inner flow passage to solve the heat dissipation problem of motor, reduces overall structure size, further increase the integrated degree of centrifugal blower.
(5) integrated centrifugal blower of the present invention is integrated into centrifugal blower volute inside by after motor flattening, motor electromagnetic driver part and vane rotary part integration are processed, and use insulating material as the process means of insulation coating for the structure member around flattening motor such as fan blade by adopting on its surface.
(6) motor is carried out flattening design by integrated centrifugal blower of the present invention, integral fusion is carried out by coiling before and after such motor rotor part and draught fan impeller, such motor stator parts and volute of blower are carried out integral fusion, achieve integrated centrifugal blower, electric machine structure is merged completely in blower fan structure parts, significantly reduce its physical dimension and weight.
(7) integrated centrifugal blower drive part of the present invention, can use flattening magneto and flattening asynchronous motor two kinds, can select according to designing requirement.For using flattening magneto, use the frequency variator that can hang on fan casing; For using flattening asynchronous motor, double speed running can be realized.
(8) integrated centrifugal blower of the present invention finally can design a series of blower fan, the size of blower fan is directly determined by the boundary dimension of flattening motor, when designing flattening motor, consider product percent of pass problem, produced the motor of a series of different capacity by the size design changing motor.
Therefore, low noise integration centrifugal blower of the present invention can realize conventional centrifugal blower fan all functions, can take into account volume little and lightweight simultaneously; Integral fan is easy for installation, is easy to dismounting; Can design a series of blower fan, integrated centrifugal blower industrialization provides possibility.
Accompanying drawing explanation
Fig. 1 is embodiment one structural representation of integral fan;
Fig. 2 is embodiment two structural representation of integral fan;
Fig. 3 is integral fan mounting point schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
Embodiment one: as shown in Figure 1, a kind of low noise integration centrifugal blower, comprises spiral case 1, block bearing 2, main shaft 3, impeller 4, inducer 5, suction flange 6, electric machine casing 7, flattening motor stator 8, flattening rotor 9, flattening motor bearing bearing 10.
Impeller 4 is installed on main shaft 3, flattening rotor 9 is installed on main shaft 3, flattening motor stator 8 is installed on spiral case 1 and flattening electric machine casing 7 respectively, inducer 5 and suction flange 6 are installed on spiral case 1, main shaft 3 is installed in spiral case 1 and inducer 5 by block bearing 2 respectively, by flattening rotor 8 rotarily drive impeller 4 rotate acting, then by changes mechanical energy for being transferred gas pressure energy and kinetic energy.
Embodiment two: as shown in Figure 2, and a kind of low noise integration centrifugal blower, comprises spiral case 11, block bearing 12, inducer 13, suction flange 14, flattening rotor 15, flattening motor stator 16, impeller 17, main shaft 18.
Impeller 17 is installed on main shaft 18, flattening rotor 15 is installed on impeller 15, flattening motor stator 16 is installed on spiral case 11, inducer 13 and suction flange 14 are installed on spiral case 11, main shaft 17 is installed in spiral case 11 and inducer 13 by block bearing 12 respectively, by flattening rotor 15 rotarily drive impeller 17 rotate acting, then by changes mechanical energy for being transferred gas pressure energy and kinetic energy.
Except being installed on by flattening motor component except the design of volute of blower inside in above-described embodiment, also flattening motor component can be arranged on volute of blower outside.
As shown in Figure 3, low noise integration centrifugal blower has three mounting points, and three mounting points are be positioned at the mounting point two of side, be positioned at the mounting point one, three of upper and lower end respectively.
Claims (4)
1. a low noise integration centrifugal blower, comprise the spiral case for installing draught fan impeller and motor and main shaft, opening one side of spiral case is fixedly connected with inducer, it is characterized in that: described motor is that flattening motor, the main shaft two ends be made up of flattening rotor and flattening motor stator are installed in spiral case and inducer respectively by block bearing, main shaft is equipped with impeller, impeller is done work, by changes mechanical energy for being transferred gas pressure energy and kinetic energy by flattening rotor driven rotary.
2. low noise integration centrifugal blower according to claim 1, it is characterized in that: described flattening rotor is installed on main shaft, flattening motor stator is installed on spiral case and flattening electric machine casing respectively, makes flattening motor stator and scroll casing shape integralization.
3. low noise integration centrifugal blower according to claim 1, is characterized in that: described flattening motor stator is installed on spiral case, and flattening rotor is installed on impeller, makes flattening rotor and impeller integral fusion.
4. the low noise integration centrifugal blower according to any one of claim 1-3, is characterized in that: described flattening motor is flattening magneto or flattening asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538123.0A CN104265663A (en) | 2014-10-14 | 2014-10-14 | Low-noise integrated centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538123.0A CN104265663A (en) | 2014-10-14 | 2014-10-14 | Low-noise integrated centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265663A true CN104265663A (en) | 2015-01-07 |
Family
ID=52157219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410538123.0A Pending CN104265663A (en) | 2014-10-14 | 2014-10-14 | Low-noise integrated centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265663A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799160A (en) * | 2018-07-03 | 2018-11-13 | 珠海格力电器股份有限公司 | Wind turbine and air conditioner |
| CN110397606A (en) * | 2019-07-09 | 2019-11-01 | 京马电机有限公司 | A kind of ducting assembly device and its installation method |
| CN111648984A (en) * | 2019-03-04 | 2020-09-11 | 东芝生活电器株式会社 | Electric blower and electric dust collector |
| CN112710027A (en) * | 2020-12-29 | 2021-04-27 | 滁州宏明机电有限公司 | Flat indoor unit metal plate of central air conditioner and production process thereof |
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| US2936947A (en) * | 1956-11-27 | 1960-05-17 | Gen Electric | Motor mounting arrangement |
| CN2075719U (en) * | 1990-09-05 | 1991-04-24 | 马增进 | Electromagnetic blower |
| JPH11182488A (en) * | 1997-12-19 | 1999-07-06 | Shibaura Mechatronics Corp | Blower |
| CN2487149Y (en) * | 2001-07-24 | 2002-04-17 | 张孟杰 | Permanent magnetic type disc shape DC motor |
| CN2567380Y (en) * | 2002-09-06 | 2003-08-20 | 元山科技工业股份有限公司 | Fan |
| CN2591285Y (en) * | 2002-12-31 | 2003-12-10 | 元山科技工业股份有限公司 | Radiating fan |
| CN102042239A (en) * | 2009-10-12 | 2011-05-04 | 卓向东 | Magnetic suspension air blower with suspension rings with outwards-extended tapered inclined planes |
| CN201953682U (en) * | 2011-01-14 | 2011-08-31 | 佛山市顺德区泛仕达机电有限公司 | Backward centrifugal fan |
| CN102239334A (en) * | 2008-12-08 | 2011-11-09 | Ntn株式会社 | Centrifugal pump device |
| EP2405140A1 (en) * | 2009-03-06 | 2012-01-11 | NTN Corporation | Centrifugal pump device |
| CN202209314U (en) * | 2011-08-19 | 2012-05-02 | 无锡杰尔压缩机有限公司 | Efficient energy-saving single-stage high-speed centrifugal blower |
| CN204226233U (en) * | 2014-10-14 | 2015-03-25 | 中国船舶重工集团公司第七0四研究所 | Low noise integration centrifugal blower |
-
2014
- 2014-10-14 CN CN201410538123.0A patent/CN104265663A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191015659A (en) * | 1910-06-29 | 1911-02-23 | William Shield Foggin | Improvements in Time Recorders for Workmen. |
| US2936947A (en) * | 1956-11-27 | 1960-05-17 | Gen Electric | Motor mounting arrangement |
| CN2075719U (en) * | 1990-09-05 | 1991-04-24 | 马增进 | Electromagnetic blower |
| JPH11182488A (en) * | 1997-12-19 | 1999-07-06 | Shibaura Mechatronics Corp | Blower |
| CN2487149Y (en) * | 2001-07-24 | 2002-04-17 | 张孟杰 | Permanent magnetic type disc shape DC motor |
| CN2567380Y (en) * | 2002-09-06 | 2003-08-20 | 元山科技工业股份有限公司 | Fan |
| CN2591285Y (en) * | 2002-12-31 | 2003-12-10 | 元山科技工业股份有限公司 | Radiating fan |
| CN102239334A (en) * | 2008-12-08 | 2011-11-09 | Ntn株式会社 | Centrifugal pump device |
| EP2405140A1 (en) * | 2009-03-06 | 2012-01-11 | NTN Corporation | Centrifugal pump device |
| CN102042239A (en) * | 2009-10-12 | 2011-05-04 | 卓向东 | Magnetic suspension air blower with suspension rings with outwards-extended tapered inclined planes |
| CN201953682U (en) * | 2011-01-14 | 2011-08-31 | 佛山市顺德区泛仕达机电有限公司 | Backward centrifugal fan |
| CN202209314U (en) * | 2011-08-19 | 2012-05-02 | 无锡杰尔压缩机有限公司 | Efficient energy-saving single-stage high-speed centrifugal blower |
| CN204226233U (en) * | 2014-10-14 | 2015-03-25 | 中国船舶重工集团公司第七0四研究所 | Low noise integration centrifugal blower |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799160A (en) * | 2018-07-03 | 2018-11-13 | 珠海格力电器股份有限公司 | Wind turbine and air conditioner |
| CN111648984A (en) * | 2019-03-04 | 2020-09-11 | 东芝生活电器株式会社 | Electric blower and electric dust collector |
| CN111648984B (en) * | 2019-03-04 | 2022-06-07 | 东芝生活电器株式会社 | Electric blower and electric dust collector |
| CN110397606A (en) * | 2019-07-09 | 2019-11-01 | 京马电机有限公司 | A kind of ducting assembly device and its installation method |
| CN112710027A (en) * | 2020-12-29 | 2021-04-27 | 滁州宏明机电有限公司 | Flat indoor unit metal plate of central air conditioner and production process thereof |
| CN112710027B (en) * | 2020-12-29 | 2022-03-11 | 滁州宏明机电有限公司 | Flat indoor unit metal plate of central air conditioner and production process thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |