CN105952685A - Efficient centrifugal fan front disc and intake port model capable of being commonly used - Google Patents
Efficient centrifugal fan front disc and intake port model capable of being commonly used Download PDFInfo
- Publication number
- CN105952685A CN105952685A CN201610475401.1A CN201610475401A CN105952685A CN 105952685 A CN105952685 A CN 105952685A CN 201610475401 A CN201610475401 A CN 201610475401A CN 105952685 A CN105952685 A CN 105952685A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- shroud
- centrifugal blower
- arc
- choma
- 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.)
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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
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
Abstract
The invention relates to an efficient centrifugal fan front disc and intake port model capable of being commonly used, and belongs to the technical field of fans. The model comprises a front disc and an intake port; the front disc consists of a conical section, an arc section and an inlet ring; a molded line of the intake port is a conical arc structure axially convergent; under the condition of invariable inner diameter D0 of the inlet ring, front discs of different serial centrifugal fans can be obtained through extending or cutting the conical section of the front disc; and the arc section of the front disc of the centrifugal fan and the arc section of the intake port are concentric arcs with equal radius. The model is simple in structure, high in generality and efficient in use, shortens the delivery time, reduces the production cost, and facilitates popularization.
Description
Technical field
The invention belongs to blower fan technical field, particularly relate to a kind of efficient centrifugal blower fan shroud that can be the most general and air inlet model.
Background technology
At present, in industry, the Fan Product of different series establishes one's own system, and each model primary element can not be the most general, in particular for the centrifugal blower shroud of placenta swaging and air inlet can not the most general, production efficiency is low.This many centrifugal blower manufacturer big for yield, serial is the most disadvantageous, have in mind from China's centrifugal blower long term growth and interests, improve three change degree between series of products, particularly improve the shroud between the Series Centrifugal Fan Product needing fetal membrane tool swaging and air inlet generalization degree, it appears particularly important.
Summary of the invention
Present invention mainly solves the technological deficiency existing for prior art and technical problem, thus provide one can improve fan efficiency, the shroud between each Series Centrifugal Fan Product and air inlet can be made again the most general simultaneously, improve product seriation, standardization level, reduce production cost, shorten the time of delivery, the centrifugal blower shroud of stabilized product quality and air inlet model.
The present invention is a kind of efficient centrifugal blower fan shroud that can be the most general and air inlet model, and including shroud and air inlet, described shroud is by conical section, segmental arc and enters choma and forms；Described air inlet molded line is the cone arcuate structure restrained vertically；Enter choma internal diameter D0 keep constant in the case of, the shroud of different series centrifugal blower can be obtained by extending or cutting the conical section of shroud；The arc section of centrifugal blower shroud and the arc section of air inlet are the isocentric circular arc waiting radius.
As preferably, nine different impellers number that one air inlet can be common between different series centrifugal blower, facilitate production, greatly reduce production cost.
As preferably, the conical section molded line of described shroud and the angle of sagittal plane are between 10-12 °.
As preferably, choma internal diameter D0 and the air inlet diameter D1 that enters of described shroud is arranged by R20 preferred numbers, and air inlet diameter D1 is 1.25 times of relations into choma internal diameter D0.
As preferably, described enter choma formed by steel plate system, and it is welded on the import department of cone arc-shaped front disc, overall turnery processing after being soldered into impeller sets, both ensure that the concentricity of impeller front disc in turn ensure that the radial clearance with air inlet, decrease the leakage loss of impeller and the generation of eddy current, improve efficiency, reduce noise.
As preferably, described air inlet is combined in cone arcuate structure, this air inlet and shroud by steel plate spinning or compression molding, section, the smooth and easy air-flow entering impeller, decreases eddy current loss, improves fan efficiency.
The invention has the beneficial effects as follows:The arc section of described air inlet arc section and shroud is arranged in the isocentric circular arc waiting radius, reinforced enter choma in turn ensure that the radial clearance of air inlet and impeller, the smooth and easy air-flow of entrance impeller, decrease eddy current loss, energy-efficient；nullIn the case of the inlet diameter D0 not changing shroud and molded line，The shroud of different series centrifugal blower can be obtained by the conical section of extension or cutting shroud，Its equivalent diameter is 1.0D2 respectively、1.12.0D2、1.25D2、1.4D2、1.6D2、1.8D2、2.0D2、2.24D2、2.5D2，And the air inlet of correspondence is completely general，As long as therefore making the fetal membrane tool of a Series Centrifugal blower fan shroud and air inlet，Just can meet the die mould work of the shroud between different series centrifugal blower and air inlet，Three change degree height，Fill up the blank that the shroud between different series centrifugal blower and air inlet can not be the most general，Facilitate production，Greatly reduce production cost，Shorten the delivery cycle，Stabilize product quality，Improve the market competitiveness.
Accompanying drawing explanation
Fig. 1 be the present invention a kind of can be the most general efficient centrifugal blower fan shroud and air inlet model overall structure schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention are made apparent clear and definite defining.
As shown in Figure 1 a kind of can be the most general efficient centrifugal blower fan shroud and air inlet model, including shroud 1 and air inlet 5, described shroud 1 is by conical section 2, segmental arc 3 and enters choma 4 and forms；Described air inlet 5 molded line is the cone arcuate structure restrained vertically；Enter choma 4 internal diameter D0 keep constant in the case of, can be by extending or the conical section 2 of cutting shroud 1 obtain the shroud of different series centrifugal blower；The arc section of the arc section of centrifugal blower shroud 1 and air inlet 5 is the isocentric circular arc waiting radius.
Nine different impellers number that one air inlet 5 can be common between different series centrifugal blower, facilitate production, greatly reduce production cost.
Conical section 2 molded line of described shroud 1 and the angle of sagittal plane are between 10-12 °.
Choma 4 internal diameter D0 and the air inlet 5 diameter D1 that enters of described shroud is arranged by R20 preferred numbers, and air inlet 5 diameter D1 is 1.25 times of relations into choma 4 internal diameter D0.
Described enter choma 4 formed by steel plate system, and it is welded on the import department of cone arc-shaped front disc 1, overall turnery processing after being soldered into impeller sets, both ensure that the concentricity of impeller front disc in turn ensure that the radial clearance with air inlet, decrease the leakage loss of impeller and the generation of eddy current, improve efficiency, reduce noise.
Described air inlet 5 is by steel plate spinning or compression molding, and section is combined in cone arcuate structure, this air inlet 5 and shroud 1, the smooth and easy air-flow entering impeller, decreases eddy current loss, improves fan efficiency.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any change expected without creative work or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (6)
1. one kind can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterised in that: including shroud (1) and air inlet (5), described shroud (1) is by conical section (2), segmental arc (3) and enters choma (4) and forms；Described air inlet (5) molded line is the cone arcuate structure restrained vertically；Enter choma (4) internal diameter D0 keep constant in the case of, can be by extending or the conical section (2) of cutting shroud (1) obtain the shroud of different series centrifugal blower；The arc section of the arc section of centrifugal blower shroud (1) and air inlet (5) is the isocentric circular arc waiting radius.
2. according to a kind of described in claims 1 can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterised in that: nine different impellers number that one air inlet (5) can be common between different series centrifugal blower.
3. according to a kind of described in claims 1 can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterised in that: conical section (2) molded line of described shroud (1) and the angle of sagittal plane are between 10-12 °.
4. according to a kind of described in claims 1 can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterized in that: choma (4) internal diameter D0 and air inlet (5) the diameter D1 that enters of described shroud is arranged by R20 preferred numbers, and air inlet (5) diameter D1 is 1.25 times of relations into choma (4) internal diameter D0.
5. according to a kind of described in claims 1 can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterized in that: described in enter choma (4) and formed by steel plate system, and it is welded on the import department boring arc-shaped front disc (1), overall turnery processing after being soldered into impeller sets.
6. according to a kind of described in claims 1 can be the most general efficient centrifugal blower fan shroud and air inlet model, it is characterised in that: described air inlet (5) is by steel plate spinning or compression molding, and section is in cone arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475401.1A CN105952685A (en) | 2016-06-23 | 2016-06-23 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475401.1A CN105952685A (en) | 2016-06-23 | 2016-06-23 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952685A true CN105952685A (en) | 2016-09-21 |
Family
ID=56903948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610475401.1A Pending CN105952685A (en) | 2016-06-23 | 2016-06-23 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538515A (en) * | 2019-01-31 | 2019-03-29 | 苏州柯琳艾尔智能科技有限公司 | Blower fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2063365A (en) * | 1979-10-08 | 1981-06-03 | Punker Gmbh | Radial Flow Fans |
| DE4023724A1 (en) * | 1989-10-23 | 1991-04-25 | Turbowerke Meissen Ventilatore | Radial-flow fan with radial impeller - has inlet nozzle with arcuated contour shifted radially inwards for specified tangent inclination |
| RU2080489C1 (en) * | 1994-09-22 | 1997-05-27 | Вячеслав Зиновьевич Ваксман | High-speed radial fan |
| JP2008138536A (en) * | 2006-11-30 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Centrifugal blower |
| CN104989669A (en) * | 2015-06-17 | 2015-10-21 | 国网天津市电力公司 | Method for reducing power consumption of mill exhauster by matching with duct resistance |
| CN205173051U (en) * | 2015-10-15 | 2016-04-20 | 常山卫邦风机有限公司 | Energy -efficient centrifugal fan's impeller front disc and air intake combination unit |
-
2016
- 2016-06-23 CN CN201610475401.1A patent/CN105952685A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2063365A (en) * | 1979-10-08 | 1981-06-03 | Punker Gmbh | Radial Flow Fans |
| DE4023724A1 (en) * | 1989-10-23 | 1991-04-25 | Turbowerke Meissen Ventilatore | Radial-flow fan with radial impeller - has inlet nozzle with arcuated contour shifted radially inwards for specified tangent inclination |
| RU2080489C1 (en) * | 1994-09-22 | 1997-05-27 | Вячеслав Зиновьевич Ваксман | High-speed radial fan |
| JP2008138536A (en) * | 2006-11-30 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Centrifugal blower |
| CN104989669A (en) * | 2015-06-17 | 2015-10-21 | 国网天津市电力公司 | Method for reducing power consumption of mill exhauster by matching with duct resistance |
| CN205173051U (en) * | 2015-10-15 | 2016-04-20 | 常山卫邦风机有限公司 | Energy -efficient centrifugal fan's impeller front disc and air intake combination unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538515A (en) * | 2019-01-31 | 2019-03-29 | 苏州柯琳艾尔智能科技有限公司 | Blower fan |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |