CN101922458A - Centrifugal fan for cooling medium and large motors - Google Patents
Centrifugal fan for cooling medium and large motors Download PDFInfo
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- CN101922458A CN101922458A CN 201010298861 CN201010298861A CN101922458A CN 101922458 A CN101922458 A CN 101922458A CN 201010298861 CN201010298861 CN 201010298861 CN 201010298861 A CN201010298861 A CN 201010298861A CN 101922458 A CN101922458 A CN 101922458A
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- guide plate
- millimeters
- centrifugal fan
- circular arc
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Abstract
The invention relates to a centrifugal fan for cooling medium and large motors, which is provided with a shell, wherein an internal installation member of the shell comprises an impeller, a current collector and guide vanes; the shell is in a volute shape formed by connecting a plurality of shell plates with circular arc-shaped sections through a straight shell plate and a transition circular arc; the guide vanes are distributed along the circumference of the center of the impeller; and hollow cavities between adjacent two guide vanes and between the guide vanes and the inner wall of the shell form air outlets. The invention has the advantages of compact structure and high efficiency; and the shell is in the volute shape and is internally provided with the guide vanes, therefore, the flow loss is more greatly and effectively reduced.
Description
Technical field
The present invention relates to a kind ofly to be used for, the centrifugal fan of big large-size machine cooling, belong to the aeration technology field, be suitable for doing that environment space is little, installation form is special, compact dimensions in, the ventilation cooling of large-size machine, in being particularly suitable for doing, the ventilate ventilator of cooling of large-scale Marine Propulsion Motor.
Background technique
In, in the cooling equipment of large-size machine, adopt ventilator that the ventilation cooling technology scheme of cooling air quantity is provided usually.Ventilation cooling technology scheme is owing to add the ventilator supplementary equipment, certainly will increase motor boundary dimension and influence the arrangement space of motor, particularly large-scale Marine Propulsion Motor arrangement space is put by space, cabin limit, therefore, require ventilator satisfying under the functional requirement prerequisite, must have concurrently and meet the motor resemblance, and compact, high-efficiency characteristics.
In order to reduce motor boundary dimension, take ventilator is arranged in the scheme at motor body upper bevel place usually, this scheme has greatly limited ventilator profile bulk, and makes the ventilator shape limitation in a triangle space.Existing ventilator in the prior art is satisfying under flow rate of fan and the total head situation, is the requirement that can't satisfy boundary dimension.
Summary of the invention
The objective of the invention is to, overcome the shortcoming of prior art, carry a kind ofly be used for, the centrifugal fan of large-size machine cooling.Optimize the ventilator internal structure, make compact structure, flow losses are little, aeroperformance good, still have higher running efficiency and aeroperformance in a triangle space.
Technological scheme of the present invention is: a kind ofly be used for, the centrifugal fan of large-size machine cooling, it has a casing that can be installed in motor body upper bevel place, and installation component comprises impeller, slip ring, guide plate in it; Described casing is that the circular arc coverboard connects to form scroll casing shape with straight shape coverboard and transition arc by several transverse section; Described guide plate reaches cavity formation exhaust outlet between guide plate and the casing inner wall along the circumference at impeller center between adjacent two guide plates.
Describedly be used for, the centrifugal fan of large-size machine cooling, the radius of arc of its circular arc coverboard is inequality.
Describedly be used for, the centrifugal fan of large-size machine cooling, its casing is the integral body of die forming.
Describedly be used for, the centrifugal fan of large-size machine cooling, it is the circular arc coverboard that its casing has individual transverse section.
Describedly be used for, the centrifugal fan of large-size machine cooling, its guide plate is connected and composed by two sections guide plate circular arc plates and guide plate transition arc; Guide plate is along the circumference of the about 5～10mm of distance impeller outer diameter, and the guide plate transition arc is tangential on circumference, and two sections guide plate circular arc plates extend to the casing exhaust outlet.
Describedly be used for, the centrifugal fan of large-size machine cooling, its 4 its radius of arc of circular arc coverboard RA, RB, RC, RD are respectively 247 millimeters, 406 millimeters, 175 millimeters, 361 millimeters millimeters; Described guide plate has 4, and exhaust outlet has 5.
Describedly be used for, the centrifugal fan of large-size machine cooling, its 4 its radius of arc of circular arc coverboard RA, RB, RC, RD are respectively 520 millimeters, 406 millimeters, 175 millimeters, 805 millimeters; Described guide plate has 2, and exhaust outlet has 3.
Describedly be used for, the centrifugal fan of large-size machine cooling, its casing profile transverse section is a right-angled triangle.
The technology of the present invention effect is remarkable, effectively utilizes right-angled triangle space, motor body upper bevel place, and casing is the type scroll casing shape, and guide plate is arranged in it, has reduced flow losses by a relatively large margin and effectively, also has compact structure, advantage that efficient is high.
Description of drawings
Fig. 1 is ventilator of the present invention scheme of installation on motor body;
Fig. 2 is a ventilator of the present invention longitudinal section schematic representation;
Fig. 3 is Fig. 2 A-A cross-sectional schematic;
Fig. 4 is a casing schematic cross-sectional view of the present invention;
Fig. 5 is a wherein guide plate schematic cross-sectional view of the present invention.
Among the figure: the corresponding name of each accompanying drawing sign is called:
The 1-casing, the 2-impeller, the 3-slip ring, 4,4.1,4.2,4.3, the 4.4-guide plate,
4a, 4c-guide plate circular arc plate, 4b-guide plate transition arc, the 5-motor body, 6,6a, 6b, 6c, 6d, 6e-exhaust outlet, 7,7A, 7B, 7C, 7D-circular arc coverboard, the straight shape coverboard of 8-,
The 9-transition arc, 10-intake grill, 11-triangle space.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Embodiment 1:Shown in Fig. 1～5, a kind ofly be used for, the centrifugal fan of large-size machine cooling, it has a casing 1 that can be installed in motor body 5 upper bevel places, and installation component comprises impeller 2, slip ring 3, guide plate 4 in it; Described casing 1 is that circular arc coverboard 7 connects to form scroll casing shape with straight shape coverboard 8 and transition arc 9 by several transverse section; Described guide plate 4 reaches cavity formation exhaust outlet 6 between guide plate 4 and casing 1 inwall along the circumference at impeller 2 centers between adjacent two guide plates 4.The radius of arc of described circular arc coverboard 7 is inequality.Described casing 1 is the integral body of die forming.It is circular arc coverboard 7 that described casing 1 has 4 transverse section.Described guide plate 4 is connected and composed by two sections circular arc plates of guide plate 4a, 4c and guide plate transition arc 4b; Guide plate 4 is along the circumference of the about 5～10mm of distance impeller 2 external diameters, and guide plate transition arc 4b is tangential on circumference, and two sections guide plate circular arc plate 4a, 4c extend to casing 1 exhaust outlet 6.Described 4 circular arc coverboards 7 are respectively 7A, 7B, 7C, 7D, and its radius of arc RA, RB, RC, RD are respectively 247 millimeters, 406 millimeters, 175 millimeters, 361 millimeters millimeters; Described guide plate 4 has 4, is respectively 4.1,4.2,4.3,4.4, and exhaust outlet 6 has 5, is respectively 6a, 6b, 6c, 6d, 6e; The flow of each exhaust outlet is respectively 25%, 25%, 25%, 12.5% and 12.5% of total discharge.Described casing 1 profile transverse section is a right-angled triangle, matches with motor body 5 upper bevel triangle spaces 11.The scroll casing shape casing compiles the air of impeller discharge and carries and discharge, and form L being 1377 millimeters is exhaust outlet length, thereby has increased the exhaust port area, has reduced outlet dynamic pressure loss.
Embodiment 2:Different with the foregoing description is that described 4 circular arc coverboards, 7 its radius of arc RA, RB, RC, RD are respectively 520 millimeters, 406 millimeters, 175 millimeters, 805 millimeters; The outlet length L is 1477 millimeters.Described guide plate 4 has 2, and exhaust outlet 6 has 3.The flow of each exhaust port is respectively 50%, 37.5% and 12.5% of total discharge.
Protection domain of the present invention is not limited to the foregoing description.
Claims (8)
- One kind be used for, the centrifugal fan of large-size machine cooling, it is characterized in that it has a casing (1) that can be installed in motor body (5) upper bevel place, installation component comprises impeller (2), slip ring (3), guide plate (4) in it; Described casing (1) is that circular arc coverboard (7) connects to form scroll casing shape with straight shape coverboard (8) and transition arc (9) by several transverse section; Described guide plate (4) reaches cavity formation exhaust outlet (6) between guide plate (4) and casing (1) inwall along the circumference at impeller (2) center between adjacent two guide plates (4).
- By claim 1 or 2 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that the radius of arc of described circular arc coverboard (7) is inequality.
- By claim 1 or 2 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that described casing (1) is the integral body of die forming.
- By claim 1 or 2 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that it is circular arc coverboard (7) that described casing (1) has 4 transverse section.
- By claim 1 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that described guide plate (4) is connected and composed by two sections guide plate circular arc plates (4a, 4c) and guide plate transition arc (4b); Guide plate (4) is along the circumference of the about 5～10mm of distance impeller (2) external diameter, and guide plate transition arc (4b) is tangential on circumference, and two sections guide plate circular arc plates (4a, 4c) extend to casing (1) exhaust outlet (6).
- By claim 4 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that its radius of arc of described 4 circular arc coverboards (7) RA, RB, RC, RD are respectively 247 millimeters, 406 millimeters, 175 millimeters, 361 millimeters millimeters; Described guide plate (4) has 4, and exhaust outlet (6) has 5.
- By claim 4 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that its radius of arc of described 4 circular arc coverboards (7) RA, RB, RC, RD are respectively 520 millimeters, 406 millimeters, 175 millimeters, 805 millimeters; Described guide plate (4) has 2, and exhaust outlet (6) has 3.
- By claim 1 describedly be used for, the centrifugal fan of large-size machine cooling, it is characterized in that described casing (1) profile transverse section is a right-angled triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298861 CN101922458B (en) | 2010-10-01 | 2010-10-01 | Centrifugal fan for cooling medium and large motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298861 CN101922458B (en) | 2010-10-01 | 2010-10-01 | Centrifugal fan for cooling medium and large motors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101922458A true CN101922458A (en) | 2010-12-22 |
| CN101922458B CN101922458B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010298861 Active CN101922458B (en) | 2010-10-01 | 2010-10-01 | Centrifugal fan for cooling medium and large motors |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230480A (en) * | 2011-07-08 | 2011-11-02 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN114146513A (en) * | 2021-12-01 | 2022-03-08 | 无锡曲速智能科技有限公司 | Light-weight fog gun |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459605A (en) * | 1977-10-20 | 1979-05-14 | Sanyo Electric Co Ltd | Blower |
| CN1687598A (en) * | 2004-10-08 | 2005-10-26 | 郑文春 | Bidirectional blower for cooling computer and electronic system |
| JP2007321562A (en) * | 2006-05-30 | 2007-12-13 | Matsushita Electric Ind Co Ltd | Centrifugal fan device and electronic equipment having this centrifugal fan device |
| CN201176967Y (en) * | 2008-04-14 | 2009-01-07 | 魏高翔 | Centrifugal blower fan flow guiding structure capable of producing uniform speed airflow of same direction |
| CN201531460U (en) * | 2009-11-05 | 2010-07-21 | 宁波煜新电器有限公司 | Wind-guiding grid for centrifugal fan |
| CN101818750A (en) * | 2005-06-14 | 2010-09-01 | 台达电子工业股份有限公司 | Centrifugal fan and fan frame thereof |
-
2010
- 2010-10-01 CN CN 201010298861 patent/CN101922458B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459605A (en) * | 1977-10-20 | 1979-05-14 | Sanyo Electric Co Ltd | Blower |
| CN1687598A (en) * | 2004-10-08 | 2005-10-26 | 郑文春 | Bidirectional blower for cooling computer and electronic system |
| CN101818750A (en) * | 2005-06-14 | 2010-09-01 | 台达电子工业股份有限公司 | Centrifugal fan and fan frame thereof |
| JP2007321562A (en) * | 2006-05-30 | 2007-12-13 | Matsushita Electric Ind Co Ltd | Centrifugal fan device and electronic equipment having this centrifugal fan device |
| CN201176967Y (en) * | 2008-04-14 | 2009-01-07 | 魏高翔 | Centrifugal blower fan flow guiding structure capable of producing uniform speed airflow of same direction |
| CN201531460U (en) * | 2009-11-05 | 2010-07-21 | 宁波煜新电器有限公司 | Wind-guiding grid for centrifugal fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230480A (en) * | 2011-07-08 | 2011-11-02 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN102230480B (en) * | 2011-07-08 | 2013-07-03 | 上海交通大学 | Compact single-suction centrifugal fan |
| CN114146513A (en) * | 2021-12-01 | 2022-03-08 | 无锡曲速智能科技有限公司 | Light-weight fog gun |
| CN114146513B (en) * | 2021-12-01 | 2022-12-02 | 无锡曲速智能科技有限公司 | Light-weight fog gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101922458B (en) | 2013-04-24 |
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Effective date of registration: 20151013 Address after: 430064, Wuhan City, Hubei province Hongshan District Lion Hill Street South Lake (steam School Village) Patentee after: Wuhan Changhai electric propulsion and chemical power supply Co., Ltd. Address before: 430064 Hubei City, Hongshan District, lion street, steam school, a village Patentee before: No.712 Inst., China Ship Heavy Industry Group Co. |