CN2823619Y - Centrifugal fan having volute screw chamber with shunting way - Google Patents
Centrifugal fan having volute screw chamber with shunting way Download PDFInfo
- Publication number
- CN2823619Y CN2823619Y CN 200520116105 CN200520116105U CN2823619Y CN 2823619 Y CN2823619 Y CN 2823619Y CN 200520116105 CN200520116105 CN 200520116105 CN 200520116105 U CN200520116105 U CN 200520116105U CN 2823619 Y CN2823619 Y CN 2823619Y
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- CN
- China
- Prior art keywords
- volute
- runner
- spiral case
- centrifugal blower
- utility
- 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
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Abstract
The volute that the utility model discloses a kind of spiral case is established the centrifugal blower of runner, and purpose is to improve the overall operation situation of blower fan; Simultaneously, simple in structure, it is few to increase parts, makes easy processing.The utility model comprises volute body, impeller, transmission part, rectification part, is provided with runner more than two or two at the volute of spiral case.The utility model and present known centrifugal blower relatively, volute can more timely dredging flow, mutual impact is disturbed, thereby can be raised the efficiency, and increases flow, simultaneously, makes the operation safety and reliability.
Description
Technical field
The utility model relates to the centrifugal blower field, and the volute that particularly relates to a kind of spiral case is established the centrifugal blower of runner.
Background technique
Statistics shows, in the total electricity consumption in the whole nation, is that Pumps ﹠ Fans consumes more than 30%.This shows that Pumps ﹠ Fans occupies an important position in the Chinese national economy construction.The using scope of centrifugal blower in fan-type is the widest.So the utility model relates to the centrifugal blower field.Centrifugal blower has a lot of known advantages, but also come with some shortcomings simultaneously, particularly in the volute of spiral case, air-flow impacts mutually, disturbs, produce vortex, consume a lot of energy in vain, because the generation of vortex region makes that the fluidised form in the volute worsens, air-flow can't smooth and easyly flow out, cause the static pressure in the volute to raise, will strengthen backflow, leakage loss, reduced volumetric efficiency.Because air-flow is in the indoor delay of spiral shell, the chance that friction takes place with the impeller of high speed rotating increases the time lengthening of friction, make energy change harmful heat into, the volute temperature is raise, when containing ignitable dust in the air-flow, very easily cause burning even blast, safe operation is produced hidden danger.
Summary of the invention
In order to overcome the deficiency on the prior art, the utility model provides a kind of can effectively improve the indoor air-flow fluidised form of snail shell coiling, improves the overall operation situation of blower fan; Simultaneously simple in structure, it is few to increase parts, and the volute of making the spiral case of easy processing is established the centrifugal blower of runner.
For achieving the above object, the technological scheme that the utility model adopted is: provide a kind of volute of spiral case to establish the centrifugal blower of runner, comprise volute body, impeller, transmission part, rectification part, be provided with runner more than two or two at the volute of spiral case.
The inflow port of above-mentioned runner is the center with the impeller center, and layout is centrosymmetric.Runner can use the steel plate manufacturing with material, also can adopt the plastic board manufacturing, the foundation of employing is mainly decided on the character and the operating conditions of the gas carried.
The beneficial effects of the utility model are:
1, timely dredging flow does not make mutual impact disturb, and improves flow efficiency.
2, airflow smooth, the indoor static pressure of snail shell coiling reduces, and has reduced return loss and leakage loss, improves volumetric efficiency.
3, the chance that rubs between air-flow and impeller reduces, the time shortens, produce heat less, helps safe operation.
Description of drawings
Fig. 1: be the layout schematic representation that the utility model volute is provided with two runners.
Fig. 2: be the layout schematic representation that the utility model volute is provided with six runners.
Among the figure: 1. spiral case, 2. impeller, 3. runner, 4. total runner.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
In the drawings, be provided with runner 3 in the volute in the spiral case 1, the layout of runner 3 is the center symmetric arrangement that the impeller center is the center, the air-flow that is thrown away by impeller 2 is imported in the runner 3 in time, take their own roads, do not disturb mutually, flow into total runner 4 swimmingly.For the selection of runner 3 quantity, can be selected according to the blower fan model; As preferably, optional two to six more suitable.When runner 3 usefulness steel plates were made, intensity, rigidity, antifriction performance, heat resistance were all better, can be used for carrying containing dust and the higher gas of temperature.When metal being corrosive gas, must adopt the plastic board manufacturing for conveying.
Claims (4)
1, a kind of volute of spiral case is established the centrifugal blower of runner, comprises volute body, impeller, transmission part, rectification part, it is characterized in that, is provided with runner more than two or two at the volute of spiral case.
2, the volute of spiral case according to claim 1 is established the centrifugal blower of runner, it is characterized in that, the inflow port of described runner is the center with the impeller center, and layout is centrosymmetric.
3, the volute of spiral case according to claim 1 is established the centrifugal blower of runner, it is characterized in that, described runner is made with steel plate.
4, the volute of spiral case according to claim 1 is established the centrifugal blower of runner, it is characterized in that, described runner is made with plastic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116105 CN2823619Y (en) | 2005-10-20 | 2005-10-20 | Centrifugal fan having volute screw chamber with shunting way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520116105 CN2823619Y (en) | 2005-10-20 | 2005-10-20 | Centrifugal fan having volute screw chamber with shunting way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2823619Y true CN2823619Y (en) | 2006-10-04 |
Family
ID=37032731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520116105 Expired - Fee Related CN2823619Y (en) | 2005-10-20 | 2005-10-20 | Centrifugal fan having volute screw chamber with shunting way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2823619Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186054A (en) * | 2018-09-11 | 2019-01-11 | 珠海格力电器股份有限公司 | Double-flow-channel volute, air channel structure and air conditioner |
| CN110360155A (en) * | 2019-08-01 | 2019-10-22 | 全浩铖 | A kind of more flow-guiding channel centrifugal pumps or radial fan shell |
-
2005
- 2005-10-20 CN CN 200520116105 patent/CN2823619Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186054A (en) * | 2018-09-11 | 2019-01-11 | 珠海格力电器股份有限公司 | Double-flow-channel volute, air channel structure and air conditioner |
| CN110360155A (en) * | 2019-08-01 | 2019-10-22 | 全浩铖 | A kind of more flow-guiding channel centrifugal pumps or radial fan shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |