CN204226233U - Low noise integration centrifugal blower - Google Patents
Low noise integration centrifugal blower Download PDFInfo
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- CN204226233U CN204226233U CN201420590225.2U CN201420590225U CN204226233U CN 204226233 U CN204226233 U CN 204226233U CN 201420590225 U CN201420590225 U CN 201420590225U CN 204226233 U CN204226233 U CN 204226233U
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- centrifugal blower
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Abstract
The utility model relates to 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.The utility model can realize conventional centrifugal blower fan all functions, and can take into account volume little and lightweight, easy for installation, be easy to dismounting, and can design a series of blower fan, integrated centrifugal blower industrialization provides possibility simultaneously.
Description
Technical field
The utility model 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 utility model 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, the technical solution of the utility model 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 solutions of the utility model are brought:
(1) integrated centrifugal fan structure of the present utility model is compact, 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 utility model 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 utility model is flexible, not by spatial constraints, can carry out unrestricted choice according to engineering demand.
(4) integrated centrifugal blower of the present utility model 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 utility model 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 utility model, 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 utility model, 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 utility model 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 utility model 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 utility model is described in further detail.
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 |
|---|---|---|---|
| CN201420590225.2U CN204226233U (en) | 2014-10-14 | 2014-10-14 | Low noise integration centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590225.2U CN204226233U (en) | 2014-10-14 | 2014-10-14 | Low noise integration centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226233U true CN204226233U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420590225.2U Active CN204226233U (en) | 2014-10-14 | 2014-10-14 | Low noise integration centrifugal blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265663A (en) * | 2014-10-14 | 2015-01-07 | 中国船舶重工集团公司第七0四研究所 | Low-noise integrated centrifugal fan |
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2014
- 2014-10-14 CN CN201420590225.2U patent/CN204226233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265663A (en) * | 2014-10-14 | 2015-01-07 | 中国船舶重工集团公司第七0四研究所 | Low-noise integrated centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 200031 Xuhui District, Hengshan Road, No. 10, Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 Xuhui District, Hengshan Road, No. 10, Patentee before: No.704 Institute of China Shipbuilding Industry Corporation |