CN114810660A - Environment-friendly energy-saving ventilation/air exchange device - Google Patents
Environment-friendly energy-saving ventilation/air exchange device Download PDFInfo
- Publication number
- CN114810660A CN114810660A CN202210394124.7A CN202210394124A CN114810660A CN 114810660 A CN114810660 A CN 114810660A CN 202210394124 A CN202210394124 A CN 202210394124A CN 114810660 A CN114810660 A CN 114810660A
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- Prior art keywords
- blade
- blades
- environment
- exchange device
- energy
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- 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.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 22
- 230000007613 environmental effect Effects 0.000 claims 2
- 230000007423 decrease Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an environment-friendly energy-saving ventilation/air-exchange device, which comprises an impeller and a volute, wherein the impeller comprises a first blade group (1), a second blade group (2), a base plate (3) and a hub (4), the first blade group and the second blade group are respectively arranged at two axial sides of the base plate, and the base plate is connected with the radial periphery of the hub, and the environment-friendly energy-saving ventilation/air-exchange device is characterized in that: the first blade group (1) comprises a plurality of first blades (5), second blades (6) and third blades (7), and the first blades, the second blades and the third blades are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: the first blade > the second blade > the third blade. The impeller can reduce outlet turbulence of the impeller, homogenize pressure distribution, reduce pressure loss and reduce noise.
Description
Technical Field
The invention relates to the technical field of ventilation or air exchange/heat exchange systems, in particular to an environment-friendly and energy-saving ventilation/air exchange device, and specifically relates to a centrifugal fan for a ventilation or air exchange system.
Background
In the technical field of ventilation or heat exchange systems, the existing centrifugal fan with double inlets and double-layer blade type impellers has the technical problems of impeller outlet turbulence and large pressure loss.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the centrifugal fan for the ventilation or heat exchange system, which can reduce the turbulent flow at the outlet of the impeller, homogenize the pressure distribution and reduce the pressure loss, thereby improving the efficiency of the centrifugal fan; and simultaneously, the noise can be reduced.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a centrifugal fan for ventilation or heat transfer system, it includes the impeller, the spiral case, the impeller is located the spiral case, the impeller is rotatory under the drive of motor, the spiral case has first air intake (S1), second air intake (S2), first air intake, the second air intake is located the axial both sides of spiral case respectively, the impeller includes first blading (1), second blading (2), base plate (3), wheel hub (4), first blading, second blading sets up respectively in the axial both sides of base plate, the base plate is connected in wheel hub' S radial periphery, its characterized in that: the first blade group (1) comprises a plurality of first blades (5), second blades (6) and third blades (7), and the first blades, the second blades and the third blades are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: the first blade > the second blade > the third blade.
Further, the axial height relationship: the first blade is larger than the second blade.
Further, an angle a is formed between the first blade and the adjacent second blade, an angle b is formed between the second blade and the adjacent third blade, an angle c is formed between the third blade and the adjacent first blade, and a is less than b and less than c.
Further, a + b is less than or equal to c.
Further, the second blade group (2) comprises a plurality of fourth blades (8) and fifth blades (9), and the fourth blades and the fifth blades are sequentially arranged in a staggered mode along the circumferential direction; radial length relationship: the fourth blade is larger than the fifth blade.
Further, the axial height relationship: the fourth blade is larger than the fifth blade.
Further, an angle a is formed between the fourth blade and the fifth blade adjacent to one side, and an angle a is also formed between the fourth blade and the fifth blade adjacent to the other side.
Furthermore, an included angle is formed between a projection line of the first blade on the substrate and a projection line of the fourth blade on the substrate, and the included angle is an angle a.
Further, a plurality of communication holes (10) are provided on the base plate at one side of the first blade and/or the fourth blade, and the plurality of communication holes (10) are arranged in a radial direction.
Further, the diameter relationship: the first air inlet is not less than the second air inlet; the blades of the first blade group and the second blade group are straight blades or arc-shaped blades.
Further, on the same radial direction line, the hole diameters of the plurality of communication holes 10 gradually decrease from the radially inner side to the radially outer side, and the pitch gradually decreases.
The invention provides a centrifugal fan for a ventilation or heat exchange system, which can reduce turbulent flow at the outlet of an impeller, homogenize pressure distribution and reduce pressure loss, thereby improving the efficiency of the centrifugal fan; and simultaneously, the noise can be reduced.
Drawings
FIG. 1 is a front view of the impeller structure of the present invention;
FIG. 2 is a side view of the impeller structure of the present invention;
fig. 3 is a side view of the impeller structure of the present invention.
In the figure: the vane assembly comprises a first vane group 1, a second vane group 2, a base plate 3, a hub 4, a first vane 5, a second vane 6, a third vane 7, a fourth vane 8, a fifth vane 9 and a communication hole 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, a centrifugal fan for a ventilation or heat exchange system includes an impeller and a volute, the impeller is located in the volute, the impeller is driven by a motor to rotate, the volute has a first air inlet S1 and a second air inlet S2, the first air inlet S1 and the second air inlet S2 are respectively located at two axial sides of the volute, the impeller includes a first blade group 1, a second blade group 2, a base plate 3 and a hub 4, the first blade group 1 and the second blade group 2 are respectively located at two axial sides of the base plate 3, and the base plate 3 is connected to a radial periphery of the hub 4.
The first blade group 1 comprises a plurality of first blades 5, second blades 6 and third blades 7, and the plurality of first blades 5, second blades 6 and third blades 7 are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: the first blade 5 is more than the second blade 6 is more than the third blade 7, and the axial height relation is as follows: first blade 5(h2) > second blade 6 ═ third blade 7(h 1). The first blade 5 and the adjacent second blade 6 have an angle a therebetween, the second blade 6 and the adjacent third blade 7 have an angle b therebetween, and the third blade 7 and the adjacent first blade 5 have an angle c therebetween, wherein a < b < c, preferably, a is 5-15 °, b is 8-18 °, and a + b is ≦ c. Through the structural design of the impeller, the turbulent flow at the outlet of the impeller can be reduced, the pressure distribution is homogenized, the pressure loss is reduced, and meanwhile, the noise can be reduced.
The second blade group 2 comprises a plurality of fourth blades 8 and fifth blades 9, and the plurality of fourth blades 8 and the plurality of fifth blades 9 are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: fourth blade 8 > fifth blade 9, axial height relationship: fourth blade 8(h2) > fifth blade 9(h 1). The fourth blade 8 has an angle a with the adjacent fifth blade 9 on one side, and the fourth blade 8 also has an angle a with the adjacent fifth blade 9 on the other side. Through the structural design of the impeller, the turbulent flow at the outlet of the impeller can be reduced, the pressure distribution is homogenized, the pressure loss is reduced, and meanwhile, the noise can be reduced.
An included angle is formed between a projection line of the first blade 5 on the substrate 3 and a projection line of the fourth blade 8 on the substrate, and the included angle is an angle a; a plurality of communication holes 10 are provided on the base plate 3 at one side of the first blade 5 and/or the fourth blade 8, and the plurality of communication holes 10 are arranged in a radial direction and are provided close to one side of the first blade 5 and/or the fourth blade 8. The setting of intercommunicating pore can further reduce impeller export turbulent flow, and the homogenization pressure distribution reduces pressure loss, can also reduce the noise simultaneously.
For different air inlet requirements, the diameter relationship: the first air inlet S1 is larger than or equal to the second air inlet S2, different air inlet sizes can be set according to different air inlet working conditions, and the same air inlet size is also available under certain working conditions. The blades of the first blade group 1 and the second blade group 2 are straight blades or arc-shaped blades.
Further, on the same radial direction line, the hole diameters of the plurality of communication holes 10 gradually decrease from the radially inner side to the radially outer side, and the pitch gradually decreases. Through this aperture, clearance design, can further reduce pressure loss better, improve centrifugal fan efficiency, noise reduction.
The invention provides a centrifugal fan for a ventilation or heat exchange system, which can reduce turbulent flow at the outlet of an impeller, homogenize pressure distribution and reduce pressure loss, thereby improving the efficiency of the centrifugal fan; and simultaneously, the noise can be reduced.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides an environmental protection and energy saving type ventilation/breather, it includes centrifugal fan, it includes the impeller, the spiral case, the impeller is located the spiral case, the impeller is rotatory under the drive of motor, the spiral case has first air intake (S1), second air intake (S2), first air intake, the second air intake is located the axial both sides of spiral case respectively, the impeller includes first blading (1), second blading (2), base plate (3), wheel hub (4), first blading, second blading sets up respectively in the axial both sides of base plate, the base plate is connected in wheel hub' S radial periphery, its characterized in that: the first blade group (1) comprises a plurality of first blades (5), second blades (6) and third blades (7), and the first blades, the second blades and the third blades are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: the first blade > the second blade > the third blade.
2. An environment-friendly and energy-saving ventilation/air-exchange device as claimed in claim 1, wherein the axial height relationship: the first blade is larger than the second blade.
3. The environment-friendly and energy-saving ventilation/air exchange device according to claim 2, wherein an angle a is formed between the first blade and the adjacent second blade, an angle b is formed between the second blade and the adjacent third blade, an angle c is formed between the third blade and the adjacent first blade, a < b < c, and a + b < c.
4. An environment-friendly and energy-saving type ventilation/air exchange device according to claim 3, wherein the second blade group (2) comprises a plurality of fourth blades (8) and fifth blades (9), and the plurality of fourth blades and the plurality of fifth blades are sequentially arranged in a staggered manner along the circumferential direction; radial length relationship: the fourth blade is larger than the fifth blade.
5. An environmental protection and energy saving ventilation/air exchange device according to claim 4, wherein the axial height relationship: the fourth blade is larger than the fifth blade.
6. The environment-friendly and energy-saving ventilation/air exchange device according to claim 4, wherein the fourth vane has an angle a with the fifth vane adjacent to one side, and the fourth vane also has an angle a with the fifth vane adjacent to the other side.
7. The environment-friendly and energy-saving ventilation/air exchange device according to claim 4, wherein an included angle formed between a projection line of the first blade on the base plate and a projection line of the fourth blade on the base plate is an angle a.
8. An environment-friendly and energy-saving type ventilating/ventilating device according to claim 4, wherein a plurality of communicating holes (10) are provided on the base plate (3) at one side of the first vane and/or the fourth vane, and the plurality of communicating holes (10) are arranged in a radial direction.
9. An environment-friendly and energy-saving type ventilation/air-exchange device according to claim 8, wherein the hole diameters of the plurality of communication holes (10) are gradually reduced from the radially inner side to the radially outer side on the same radial direction line, and the pitch is gradually reduced.
10. An environment-friendly and energy-saving type ventilation/air exchange device as claimed in claim 1, wherein the relationship of diameters is: the first air inlet is not less than the second air inlet; the blades of the first blade group and the second blade group are straight blades or arc-shaped blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210394124.7A CN114810660B (en) | 2022-04-15 | 2022-04-15 | Environment-friendly energy-saving ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210394124.7A CN114810660B (en) | 2022-04-15 | 2022-04-15 | Environment-friendly energy-saving ventilation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810660A true CN114810660A (en) | 2022-07-29 |
| CN114810660B CN114810660B (en) | 2024-04-30 |
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ID=82537585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210394124.7A Active CN114810660B (en) | 2022-04-15 | 2022-04-15 | Environment-friendly energy-saving ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114810660B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012011305U1 (en) * | 2012-11-22 | 2012-12-05 | Asia Vital Components (China) Co., Ltd. | Paddle wheel with several blade groups and centrifugal fan |
| CN204458530U (en) * | 2014-12-29 | 2015-07-08 | 宁波方太厨具有限公司 | The adjustable centrifugal blower of a kind of intake grill |
| CN206207517U (en) * | 2016-11-11 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of the impeller |
| KR20180039548A (en) * | 2016-10-10 | 2018-04-18 | 소애련 | Centrifugal impeller having backward blades using dual gradient sectional shape type |
| JP2018071551A (en) * | 2017-12-27 | 2018-05-10 | 日本電産株式会社 | Centrifugal fan |
| CN108223443A (en) * | 2018-04-04 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of wind wheel and its air blower of application |
| CN108457898A (en) * | 2018-05-01 | 2018-08-28 | 赵浩浩 | A kind of blade wheel structure for compressor |
| CN209586783U (en) * | 2019-02-13 | 2019-11-05 | 安徽欧斯福科技有限公司 | A kind of dryer of novel impeller structure |
| CN110439855A (en) * | 2019-09-04 | 2019-11-12 | 盐城工业职业技术学院 | A kind of centrifugal blower applied to air conditioning for automobiles ventilating system |
| CN112096664A (en) * | 2020-09-28 | 2020-12-18 | 江西省子轩科技有限公司 | Fan for ventilation system |
| CN112610525A (en) * | 2020-12-09 | 2021-04-06 | 江苏美的清洁电器股份有限公司 | Fan for dust collector and dust collector |
| CN112901552A (en) * | 2019-12-03 | 2021-06-04 | 曼恩能源方案有限公司 | Radial compressor impeller |
| CN113833675A (en) * | 2021-09-16 | 2021-12-24 | 势加透博洁净动力如皋有限公司 | Impeller and air compressor with same |
| JP2022019127A (en) * | 2020-07-17 | 2022-01-27 | 日本電産コパル電子株式会社 | Centrifugal fan and blower using the same |
| CN215949873U (en) * | 2021-05-28 | 2022-03-04 | 青岛海尔智能技术研发有限公司 | Centrifugal fan and range hood with same |
-
2022
- 2022-04-15 CN CN202210394124.7A patent/CN114810660B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012011305U1 (en) * | 2012-11-22 | 2012-12-05 | Asia Vital Components (China) Co., Ltd. | Paddle wheel with several blade groups and centrifugal fan |
| CN204458530U (en) * | 2014-12-29 | 2015-07-08 | 宁波方太厨具有限公司 | The adjustable centrifugal blower of a kind of intake grill |
| KR20180039548A (en) * | 2016-10-10 | 2018-04-18 | 소애련 | Centrifugal impeller having backward blades using dual gradient sectional shape type |
| CN206207517U (en) * | 2016-11-11 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of the impeller |
| JP2018071551A (en) * | 2017-12-27 | 2018-05-10 | 日本電産株式会社 | Centrifugal fan |
| CN108223443A (en) * | 2018-04-04 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of wind wheel and its air blower of application |
| CN108457898A (en) * | 2018-05-01 | 2018-08-28 | 赵浩浩 | A kind of blade wheel structure for compressor |
| CN209586783U (en) * | 2019-02-13 | 2019-11-05 | 安徽欧斯福科技有限公司 | A kind of dryer of novel impeller structure |
| CN110439855A (en) * | 2019-09-04 | 2019-11-12 | 盐城工业职业技术学院 | A kind of centrifugal blower applied to air conditioning for automobiles ventilating system |
| CN112901552A (en) * | 2019-12-03 | 2021-06-04 | 曼恩能源方案有限公司 | Radial compressor impeller |
| JP2022019127A (en) * | 2020-07-17 | 2022-01-27 | 日本電産コパル電子株式会社 | Centrifugal fan and blower using the same |
| CN112096664A (en) * | 2020-09-28 | 2020-12-18 | 江西省子轩科技有限公司 | Fan for ventilation system |
| CN112610525A (en) * | 2020-12-09 | 2021-04-06 | 江苏美的清洁电器股份有限公司 | Fan for dust collector and dust collector |
| CN215949873U (en) * | 2021-05-28 | 2022-03-04 | 青岛海尔智能技术研发有限公司 | Centrifugal fan and range hood with same |
| CN113833675A (en) * | 2021-09-16 | 2021-12-24 | 势加透博洁净动力如皋有限公司 | Impeller and air compressor with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114810660B (en) | 2024-04-30 |
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