CN203420943U - Fanner for generator cooling system radiator - Google Patents
Fanner for generator cooling system radiator Download PDFInfo
- Publication number
- CN203420943U CN203420943U CN201320479594.XU CN201320479594U CN203420943U CN 203420943 U CN203420943 U CN 203420943U CN 201320479594 U CN201320479594 U CN 201320479594U CN 203420943 U CN203420943 U CN 203420943U
- Authority
- CN
- China
- Prior art keywords
- ventilator
- fanner
- flow
- ring
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 230000008676 import Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to a fanner for a generator cooling system radiator. The fanner comprises an outer shell, an internal volute, a diversion blade grid, impellers, a flow collector and a filtering screen. The impellers in the fanner are installed at the shaft extension end of a generator rotor through a hub. The outer shell is suitable for the overall structure demands of a generator unit, and the cross section of the outer shell is the same as the appearance of a generator. The efficient pneumatic performance of the fanner is guaranteed through the unique internal volute, and the internal volute is the basic component of the efficient fanner. The diversion blade grid in the fanner outlet enables the air flow to stably and evenly flow towards a generator unit air cooler. The impellers are of a relatively large flow structure, and can efficiently work at high flow working condition points. By means of the combination of the external characters, the pressure coefficient and flow coefficient of the fanner are effectively increased. When the fanner works at the rotation speed of 1490r/min, effective static pressure can reach 490Pa per hour, the flow reaches 3.74m/s, the whole pressure efficiency reaches more than 70%, and the noise is controlled within 80dB (A).
Description
Technical field
The utility model relates to a kind of generator cooling system radiator ventilator, and it is outer path cooling fan for generator cooling system radiator, and the radiator ventilation that is applicable to Generator Set cooling system is cooling, belongs to field of fluid machinery.
Background technique
Generator set is to provide the basic equipment of electric power.For the focus utilization energy and raising generating efficiency, mainly adopt at large and medium-sized generator at present.In the working procedure of generating, large and medium-sized generator need carry independently circulating cooling system; Circulating cooling system comprises that interior circulation and outer path ventilate cooling.Generator is when operation work, and the heat that staor winding and rotor are a large amount of because internal loss produces, needs by cooling equipment, to be taken away in time, in order to avoid overheated scaling loss.The hot air that internal circulation system produces motor internal heating component is delivered to the air-air cooler of generator; The mobile driving force that provides that outer path ventilator is outer circulation air, sucks cooling-air in atmosphere, is transported to air-air cooler, carries out heat exchange, after cooler cooled interior hot air, directly blows atmosphere.A large amount of cooling-airs that outer path ventilator is carried by cooler, have guaranteed the normal temperature of motor internal, and then have maintained the lasting normal operation of generator, have been the core components of generator cooling system.Existing ventilating machine pneumatic poor performance, not steadily evenly, ventilator pressure coefficient and flow coefficient are low for air-flow, and noise is large.
Summary of the invention
The purpose of this utility model is to overcome defect and the deficiency of prior art, provides a kind of aeroperformance good, and air-flow is steadily even, and pressure coefficient and flow coefficient are high, the generator cooling system radiator ventilator that noise is little.
Technological scheme of the present utility model: a kind of generator cooling system radiator ventilator, it is characterized in that this described ventilator is centrifugal fan, ventilator outlet size is less than the size of radiator import, and it comprises external casing, built-in spiral case, guide-ring, impeller, slip ring and filter screen; Impeller in this ventilator is arranged on the shaft extension end of generator amature by wheel hub;
Described built-in spiral case is arranged in external casing, and this built-in spiral case is how much spiral yarn shaped built-in worm frames, and external casing meets integral installation requirement, and inner spiral case meets the efficient aerodynamic requirement of centrifugal blower;
Described guide-ring is arranged on the outlet position of ventilator, the length of this guide-ring and arc angle are even shunt structure, the quantity of guide-ring is 3, at the outlet position of ventilator, install shunting leaf grating additional, play relatively even separated exit flow, can guide air-flow steady mobile, reduce air whirl and produce, possess certain diffusion and noise reduction simultaneously;
Described spiral case exit portion is isolated into four regions, the trip Length Ratio X1:X2:X3:X4=10:9:9:8.8 in four regions, and between each region, length range changes 5% pair of general performance performance impact and can accept; The ratio of guide-ring radius is respectively: R1:R2:R3=1:1.15:2, it is best that ratio changes in 10%.The scope of spiral case outlet B1:B2 ratio value is between 2.1～2.25.
Described impeller is efficient large flow centrifugal impeller, and 39 ° ± 1.5 ° of impeller outlet angles be the best.Impeller diameter D=100 is reference dimension, and outlet radix is of a size of 27.3 ± 0.5, and blade radian radix is of a size of R39.3 ± 0.5; Impeller is scaled size arbitrarily.
The utility model is applied to large and medium-sized generator set cooling system, and its object is to adapt to the cooling working environment of generator set and mounting structure requirement, is the innovation during large flow-quantity high-efficiency centrifugal blower is applied in generator set cooling system.This ventilator is large flow centrifugal blower, compares with traditional the type ventilator, and its structure has following characteristics.First, organically combine the overall structure requirement of generator set, externally in housing, configured the spiral yarn shaped built-in spiral case of the necessary geometry of efficient centrifugal ventilator.External casing meets integral installation requirement, and inner spiral case meets the efficient aerodynamic requirement of centrifugal blower.Secondly, because ventilator outlet is less than the size of radiator import, exit flow directly blows to radiator can cause air-flow skewness.Centrifugal blower of the present utility model needs the requirement of Homogeneouslly-radiating for generator heat-radiation device, the structure of ventilator outlet position design mix stream leaf grating, this shunting leaf grating length and arc angle, according to evenly shunting and design, make the relative uniform-flow of exit flow energy to radiator; Outlet position at ventilator installs shunting leaf grating additional, plays relatively even separated exit flow, can guide air-flow steady mobile simultaneously, reduces air whirl and produces, and possesses certain diffusion and noise reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional structure schematic diagram of the present utility model;
In figure: 1-external casing, the built-in spiral case of 2-, 3-guide-ring, 4-impeller, 5-slip ring, 6-filter screen.
Embodiment
With reference to figure 1 and Fig. 2, a kind of generator cooling system radiator ventilator, it is characterized in that this described ventilator is centrifugal fan, ventilator outlet size is less than the size of radiator import, and it comprises external casing 1, built-in spiral case 2, guide-ring 3, impeller 4, slip ring 5 and filter screen 6; Impeller in this ventilator is arranged on the shaft extension end of generator amature by wheel hub;
Described built-in spiral case 2 is arranged in external casing 1, and this built-in spiral case 2 is how much spiral yarn shaped built-in worm frames, and external casing meets integral installation requirement, and inner spiral case meets the efficient aerodynamic requirement of centrifugal blower;
Described guide-ring 3 is arranged on the outlet position of ventilator, the length of this guide-ring 3 and arc angle are even shunt structure, the quantity of guide-ring 3 is 3, at the outlet position of ventilator, install shunting leaf grating additional, play relatively even separated exit flow, can guide air-flow steady mobile, reduce air whirl and produce, possess certain diffusion and noise reduction simultaneously;
Described spiral case exit portion is isolated into four regions, the trip Length Ratio X1:X2:X3:X4=10:9:9:8.8 in four regions, and between each region, length range changes 5% pair of general performance performance impact and can accept; The ratio of guide-ring radius is respectively: R1:R2:R3=1:1.15:2, it is best that ratio changes in 10%.The scope of spiral case outlet B1:B2 ratio value is between 2.1～2.25.
Described impeller 4 is efficient large flow centrifugal impeller, and 39 ° ± 1.5 ° of impeller outlet angles be the best.Impeller diameter D=100 is reference dimension, and outlet radix is of a size of 27.3 ± 0.5, and blade radian radix is of a size of R39.3 ± 0.5.Impeller is scaled size arbitrarily.，
Built-in spiral case effect in this ventilator is diffusion and water conservancy diversion, is the Pneumatic component of raising the efficiency, and is the basic characteristics of efficient centrifugal blower fan; Guide-ring according to going out mouth-shaped and being designed to, can effectively distribute the air quantity that is transported to cooler, and have diffusion and noise reduction simultaneously.The radian of guide-ring and between distance by the distribution of air-flow, carried out appropriate design.
Impeller in this ventilator is large flow centrifugal impeller structure, can carry sufficient cooling-air to cooling system, can be in high flow capacity operating point efficient operation; With the combination of above external features, effectively improve ventilator pressure coefficient and flow coefficient, when rotating speed 1490r/min moves, in the time of providing the effective static pressure of system to reach 490Pa, flow reaches 3.74m
/ s, total pressure efficiency reaches more than 70%, and noise is controlled in 80dB (A).Impeller center is forged hub, and forged steel pieces can bear the high internal stress producing in rotary course.According to the requirement of system condition, the gentle flow inlet and outlet angle of the length of blade has been carried out to the design of large flow.
Claims (3)
1. a generator cooling system radiator ventilator, is characterized in that:
A, this described ventilator are centrifugal fan, and ventilator outlet size is less than the size of radiator import, and it comprises external casing (1), built-in spiral case (2), guide-ring (3), impeller (4), slip ring (5) and filter screen (6); Impeller in this ventilator (4) is arranged on the shaft extension end of generator amature by wheel hub;
B, described built-in spiral case (2) are arranged in external casing (1), and this built-in spiral case (2) is how much spiral yarn shaped built-in worm frames;
C, described guide-ring (3) are arranged on the outlet position of ventilator, and the length of this guide-ring (3) and arc angle are even shunt structure, and the quantity of guide-ring (3) is 3, at the outlet position of ventilator, installs guide-ring (3) additional.
2. a kind of generator cooling system radiator ventilator as claimed in claim 1, it is characterized in that described spiral case exit portion is isolated into four regions, the trip Length Ratio X1:X2:X3:X4=10:9:9:8.8 in four regions, the ratio of guide-ring radius is respectively: R1:R2:R3=1:1.15:2, the scope of spiral case outlet B1:B2 ratio value is between 2.1～2.25.
3. a kind of generator cooling system radiator ventilator as claimed in claim 1, it is characterized in that described impeller (4) is for efficient large flow centrifugal impeller, 39 ° ± 1.5 ° of impeller outlet angles are best, impeller diameter D=100 is reference dimension, outlet radix is of a size of 27.3 ± 0.5, and blade radian radix is of a size of R39.3 ± 0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479594.XU CN203420943U (en) | 2013-08-07 | 2013-08-07 | Fanner for generator cooling system radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479594.XU CN203420943U (en) | 2013-08-07 | 2013-08-07 | Fanner for generator cooling system radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420943U true CN203420943U (en) | 2014-02-05 |
Family
ID=50020042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320479594.XU Expired - Fee Related CN203420943U (en) | 2013-08-07 | 2013-08-07 | Fanner for generator cooling system radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122101A (en) * | 2016-08-09 | 2016-11-16 | 珠海格力电器股份有限公司 | Centrifugal fan assembly and air conditioning device |
| CN112253495A (en) * | 2020-09-11 | 2021-01-22 | 宁波方太厨具有限公司 | Fan system and range hood with same |
-
2013
- 2013-08-07 CN CN201320479594.XU patent/CN203420943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122101A (en) * | 2016-08-09 | 2016-11-16 | 珠海格力电器股份有限公司 | Centrifugal fan assembly and air conditioning device |
| CN106122101B (en) * | 2016-08-09 | 2018-10-30 | 珠海格力电器股份有限公司 | Centrifugal fan assembly and air conditioning device |
| CN112253495A (en) * | 2020-09-11 | 2021-01-22 | 宁波方太厨具有限公司 | Fan system and range hood with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |