WO2021208496A1 - Roue éolienne à flux mixte, ensemble ventilateur, système d'alimentation et ventilateur - Google Patents

Roue éolienne à flux mixte, ensemble ventilateur, système d'alimentation et ventilateur Download PDF

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Publication number
WO2021208496A1
WO2021208496A1 PCT/CN2020/139932 CN2020139932W WO2021208496A1 WO 2021208496 A1 WO2021208496 A1 WO 2021208496A1 CN 2020139932 W CN2020139932 W CN 2020139932W WO 2021208496 A1 WO2021208496 A1 WO 2021208496A1
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WO
WIPO (PCT)
Prior art keywords
blade
wind wheel
mixed flow
flow wind
tangent
Prior art date
Application number
PCT/CN2020/139932
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English (en)
Chinese (zh)
Inventor
柳洲
梁文龙
梁浩
饶长健
Original Assignee
珠海格力电器股份有限公司
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Publication of WO2021208496A1 publication Critical patent/WO2021208496A1/fr

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • 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
    • F04D29/663—Sound attenuation
    • 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
    • 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

Definitions

  • This application relates to the technical field of household appliances, in particular to a mixed flow wind wheel, fan assembly, power system, and fan.
  • the traditional bladeless fan structure the outside air enters the air duct system under the drive of the power unit.
  • the power unit is equipped with a fan, and the fan is equipped with a wind wheel.
  • the wind wheel converts the outside air into high speed and high pressure in the diversion wind. Under the guidance of the duct, it flows into the outlet air duct and discharges from the air outlet gap.
  • this application aims to further improve the air outlet effect of the bladeless fan, so as to provide a mixed flow wind wheel, fan assembly, power system, and fan.
  • this application provides a mixed flow wind wheel, which includes a hub and a plurality of blades arranged in the circumferential direction of the hub.
  • the blades have a suction surface and a pressure surface.
  • the middle surface is defined as the equidistance between the suction surface and the pressure surface;
  • the axis of rotation of the hub is the cylindrical surface M formed by the central axis and intersects the midplane.
  • the intersection point of the end line N that defines the cylindrical surface and the front edge of the blade on the midplane is the inlet intersection point A, which defines the end line of the cylindrical surface M and the rear edge of the midplane.
  • intersection point P is the wind-out intersection point B, and the blade profile curve Q is made through the two points A and B; the tangent line of the leaf profile curve Q through the point A is the first tangent line, and the axial truncated circle of the cylindrical surface M is made through the point A.
  • the tangent of is the second tangent, the angle between the first tangent and the second tangent is the air inlet tangent angle ⁇ , and the value of ⁇ is [25°, 40°];
  • the tangent of the leaf profile curve Q passing point B is the first Three tangents, the tangent to the axial truncated circle of the cylindrical surface M through the point B is the fourth tangent, the angle between the third tangent and the fourth tangent is the wind tangent angle ⁇ , and the value of ⁇ is [30°, 40° ].
  • the inlet air cut angle ⁇ is 32°, and the outlet air cut angle ⁇ is 35°.
  • the curve that intersects the outer surface of the hub is taken as the lower end line
  • the outermost curve of the midplane away from the hub is taken as the upper end line
  • any curve between the upper end line and the lower end line is taken as
  • the mid-end line defines the conformal transformation angle as 10°
  • the coordinates of the intersection on the two-dimensional projection surface are defined as X, Y
  • the ratios of the above-mentioned coordinates to the diameter of the mixed flow rotor are defined as x and y respectively, where the lower end line corresponds to X satisfies [0.05,0.35], y satisfies [0.045,0.30];
  • the middle line corresponds to x satisfies [0.01,0.35], y satisfies [0.15,0.35];
  • the upper line corresponds to x satisfies [0.005,0.30],y Satisfy [0.24,0.40].
  • the blade wrap angle ⁇ is [80°, 100°].
  • the blade wrap angle ⁇ is 90°.
  • the end surface of the leading edge of the blade includes a straight surface arranged on the side close to the hub, and an arc surface connected to the straight surface.
  • a number of tooth-shaped grooves are provided on the end surface of the trailing edge of the blade.
  • the blade includes a main blade and an auxiliary blade sandwiched between the two main blades.
  • the blade leading edge of the auxiliary blade is arranged lower than the blade leading edge of the main blade in the axial height of the hub.
  • blades are distributed at equal intervals in the circumferential direction of the same height of the hub.
  • the application also provides a fan assembly including any one of the above-mentioned mixed-flow wind wheels; a driving motor, and the mixed-flow wind wheel is arranged on the motor shaft of the driving motor.
  • it further comprises a casing arranged on the mixed flow wind wheel, a fluid passage is formed between the inner side wall of the casing and the outer surface of the hub, and the blades are accommodated in the fluid passage.
  • the shell is integrally formed on the mixed flow wind wheel.
  • the application also provides a power system including any one of the above-mentioned mixed flow wind wheels; or any one of the above-mentioned fan components.
  • the application also provides a fan including the above-mentioned power system.
  • the fan is a bladeless fan.
  • the mixed flow wind wheel in this application includes a hub and a number of blades arranged in the circumferential direction of the hub.
  • the blades have a suction surface and a pressure surface.
  • the midplane is defined as the equidistance between the suction surface and the pressure surface; the rotation axis of the hub is the central axis.
  • the formed cylindrical surface M intersects the midplane.
  • the intersection point of the end line N that defines the front edge of the cylindrical surface and the midplane of the blade is the inlet intersection point A, and the intersection point of the end line P that defines the cylindrical surface M and the midplane's blade trailing edge is the outlet intersection point.
  • B intersection point of the end line N that defines the front edge of the cylindrical surface and the midplane of the blade
  • the steering angle of the airflow in the mixed flow wind wheel is small, and the small turning angle can reduce the kinetic energy loss during the turning process, thereby ensuring the mixed flow The wind pressure and volume of the wind wheel.
  • the mixed flow wind wheel in this application is on the middle surface, and the curve that intersects the outer surface of the hub is taken as the lower end line.
  • the outermost curve of the middle surface away from the hub is taken as the upper end line.
  • Any curve is the mid-end line
  • the conformal transformation angle is defined as 10°
  • the coordinates of the intersection point on the two-dimensional projection surface are defined as X, Y
  • the ratios of the above-mentioned coordinate values to the diameter of the mixed flow rotor are defined as x and y respectively, where ,
  • the x corresponding to the lower end line satisfies [0.05, 0.35], and y satisfies [0.045, 0.30];
  • the x corresponding to the middle end line satisfies [0.01, 0.35], and y satisfies [0.15, 0.35];
  • the x corresponding to the upper end line satisfies [0.005, 0.30], y satisfies [0.24, 0.40].
  • the wrap angle ⁇ of the blades in the mixed flow wind wheel in this application is [80°, 100°].
  • the blades within the above-mentioned angle range have strong working power and can increase the wind pressure of the wind.
  • the end surface of the trailing edge of the blade in the mixed flow wind wheel in the present application is provided with a number of tooth-shaped grooves.
  • the formation of eddy currents between the tooth-shaped grooves can effectively reduce the interaction of the pressure surface and the suction surface of the horseshoe socket, and reduce the aerodynamic eddy current noise.
  • Fig. 1 is a schematic diagram of the structure of the pressure surface, the suction surface and the middle surface of the blade in the mixed flow wind wheel in Example 1 provided by this application;
  • Embodiment 2 is a schematic diagram of the structure of the mixed flow wind wheel in Embodiment 1 provided by this application;
  • FIG. 3 is a schematic diagram of the division angle in the conformal transformation in Embodiment 1 provided by this application;
  • Embodiment 4 is a schematic diagram of the forming principle of the mixed-flow wind turbine blade in Embodiment 1 provided by this application;
  • Embodiment 5 is a schematic diagram of the wrap angle of the blade in Embodiment 1 provided by this application;
  • FIG. 6 is a schematic diagram of the air inlet cut angle and the air outlet cut angle in Embodiment 1 provided by this application;
  • FIG. 7 is a schematic structural diagram of the fan assembly in Embodiment 2 provided by this application.
  • FIG. 8 is a schematic structural diagram of the power system in Embodiment 3 provided by this application.
  • FIG. 9 is a cross-sectional view of the power system in Embodiment 3 provided by this application.
  • Blade 21, suction surface; 22, pressure surface; 23, middle surface; 24, straight surface; 25, curved surface; 26, main blade; 27, auxiliary blade; 28, toothed groove;
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meanings of the above terms in this application can be understood under specific circumstances.
  • a mixed flow wind wheel provided by this embodiment includes a hub 1 and a number of blades 2 arranged in the circumferential direction of the hub 1.
  • the blades 2 have a suction surface 21 and a pressure surface 22, and the blades 2
  • the pressure surface 22 refers to the surface of the blade on which the blade presses the fluid, that is, the surface on which the blade performs work, and is usually a concave surface structure.
  • the suction surface 21 of the blade refers to the blade surface of the blade 2 impacted by the fluid due to the decrease in pressure, and is usually a convex structure.
  • the leading edge of the blade and the trailing edge of the blade are briefly described below.
  • the leading edge of the blade is along the flow direction of the air flow, the flow surface of the blade 2 that starts to contact the air flow, and the trailing edge of the blade is the end face of the tail end of the blade 2 along the flow direction of the air flow.
  • the equidistance between the suction surface 21 and the pressure surface 22 is defined as the middle surface 23, that is, the distance from any point on the middle surface 23 to the suction surface 21 and the pressure surface 22, respectively.
  • the middle surface 23 is a middle curved surface along the thickness direction of the blade 2, which can better express the characteristics of the flow surface of the blade 2.
  • intersection of the midplane 23 and the leading edge of the blade creates an end line N at the leading edge of the blade, and the intersection of the midplane 23 and the trailing edge of the blade creates an end line P of the trailing edge of the blade.
  • a number of cylindrical surfaces M with unequal radii are formed with the rotation axis L1 of the hub 1 as the central axis to intersect the midplane 23, defining the end line of the cylindrical surface M1 and the leading edge of the blade of the midplane 23
  • the intersection point of N is the inlet wind intersection point A.
  • the intersection point of the end line P defining the trailing edge of the cylindrical surface M2 and the midplane 23 is the outlet wind intersection point B; the blade profile curve Q of the blade 2 is made through the two points A and B.
  • the blade profile The curve Q is briefly explained. First, it is a curve on the middle surface 23, and any point on it is equal to the distance between the upper end line and the lower end line raised below.
  • the tangent line of the leaf profile curve Q passing through the point A is the first tangent line n
  • the tangent line of the axial truncated circle of the cylindrical surface M1 passing the point A is the second tangent line m1, between the first tangent line n and the second tangent line m1
  • the included angle of is the air inlet tangent angle ⁇ , the value of ⁇ is [25°, 40°]
  • the tangent line of the airfoil curve Q passing through point B is the third tangent line p
  • the tangent of is the fourth tangent m2, the angle between the third tangent p and the fourth tangent m2 is the air outlet tangent angle ⁇ , the value of ⁇ is [30°, 40°], and the air inlet tangent angle ⁇ in this embodiment is 32°, the wind cut angle ⁇ is 35°
  • cylindrical surface M1 and cylindrical surface M2 only represent cylindrical surfaces M of different diameters to make a distinction.
  • the mixed flow wind wheel in this embodiment is constrained by the above-mentioned inlet air cut angle ⁇ and outlet wind cut angle ⁇ , the turning angle of the air flow in the mixed flow wind wheel is small, and the small turning angle can reduce the loss of kinetic energy during the turning process. So as to ensure the air pressure and air volume of the mixed flow wind wheel.
  • Back pressure The inlet of the bladeless fan is meshed for air. In order to consider the pressure loss at the inlet section and improve the performance of the fan, consider setting a resistance difference between the inlet and outlet, that is, back pressure.
  • Wind pressure the effective energy obtained by the unit volume of gas through the fan.
  • the blade forming in this embodiment adopts a conformal transformation method.
  • the split angle Is 10°, on the middle surface, the curve that intersects the outer surface of the hub 1 is taken as the lower end line b
  • the outermost curve of the middle surface away from the hub 1 is taken as the upper end line a
  • the upper end line a and the lower end line b are taken Any curve is the middle end line c.
  • the above-mentioned dividing angle line and the upper end line a, middle end line c, and lower end line b respectively produce division intersection points.
  • the projection of the above-mentioned divisional intersection point corresponds to points 1"-11", and the coordinates of the above-mentioned divisional intersection point on the two-dimensional projection surface are defined as X, Y.
  • the coordinate X in this embodiment corresponds to the XYZ coordinate system
  • the value on the OZ axis, and the coordinate Y corresponds to the value on the OY axis in the XYZ coordinate system.
  • the ratio of the above coordinate value to the diameter R of the mixed flow rotor as x and y, respectively, to obtain the parameters in Table 3:
  • the blade shape of the above-mentioned blade 2 has better flow guiding ability, which can reduce the kinetic energy loss of the air flow during the rotation process, thereby increasing the final air output.
  • the x corresponding to the lower end line satisfies [0.05, 0.35], y meets [0.045, 0.30]; the x corresponding to the middle end line satisfies [0.01, 0.35], and y meets [0.15, 0.35]; the x corresponding to the upper end line satisfies [0.005 , 0.30], y satisfies [0.24, 0.40], the above relationship determines the basic blade shape of the blade 2.
  • the shape of the corresponding blade 2 can be scaled up or down.
  • the blade wrap angle ⁇ is [80°, 100°], and the blade wrap angle ⁇ in this embodiment is 90°.
  • the blade 2 under the above wrap angle has a strong function and can improve the wind output. Wind pressure.
  • the end surface of the leading edge of the blade includes a flat surface 24 arranged on the side close to the hub 1, and an arc surface 25 that is connected to the flat surface 24.
  • This structure is designed to reduce the airflow boundary of the leading edge of the blade. The separation of layers reduces vortex and noise.
  • tooth-shaped grooves 28 are provided on the end surface of the trailing edge of the blade.
  • the eddy current is formed between the toothed grooves 28, which can effectively reduce the interaction of the pressure surface and the suction surface of the horseshoe socket, and reduce the aerodynamic eddy current noise.
  • the blade 2 in this embodiment includes a main blade 26 and an auxiliary blade 27 sandwiched between two main blades 26.
  • the blade leading edge of the auxiliary blade 27 is lower than the blade leading edge of the main blade 26 in the axial height of the hub 1.
  • the blade shape of the main blade 26 and the auxiliary blade 27 are the same, and there is only the above-mentioned difference in the position of the leading edge of the blade.
  • the above-mentioned research objects in this embodiment are all the main blades 26. Of course, the same conclusion can be obtained by taking the auxiliary blade 27 as the research object.
  • the several blades 2 in this embodiment are distributed at equal intervals in the circumferential direction of the same height of the hub 1.
  • the evenly spaced arrangement ensures the uniformity of the flow of each blade, and the uniformity of the flow can ensure the stability and consistency of the fluid pressure on each blade, thereby effectively ensuring the service life of the guide vane.
  • a fan assembly provided in this embodiment includes: the mixed-flow wind wheel in the above-mentioned embodiment 1 and a drive motor 3, and the mixed-flow wind wheel is installed on the motor shaft of the drive motor 3.
  • This embodiment also includes a casing 4 arranged on the mixed-flow wind wheel.
  • the inner side wall of the casing 4 and the outer surface of the hub 1 form a fluid channel, and the blades 2 are accommodated in the fluid channel.
  • the casing The body 4 is directly integrally formed on the mixed flow wind wheel.
  • a power system provided by this embodiment includes: the fan assembly in the second embodiment.
  • the structure exploded view in FIG. 8 shows the basic composition of the power system.
  • H represents a mixed flow wind wheel, which is installed on the motor shaft of the driving motor 3.
  • the outer cover of the drive motor 3 is provided with a motor housing 7.
  • the motor housing 7 plays a role of supporting the installation of the motor on the one hand, and can reduce the noise problem caused by the vibration of the drive motor on the other hand.
  • This embodiment also includes a diffuser 8 which is arranged above the mixed-flow wind wheel H.
  • the high-speed rotating air flow from the mixed-flow wind wheel H enters into the diffuser 8 and becomes an airflow flowing in the axial direction.
  • the diffuser 8 is hollow.
  • the above-mentioned middle motor housing 7 is deeply installed into the inside of the diffuser 8 to realize a compact design of the structure.
  • This embodiment also includes an upper casing 6 and a lower casing 9, which are locked together by a locking member 5 arranged up and down, wherein the inner side wall of the upper casing 6 and the outer side surface of the diffuser 8 can be formed Diversion air duct.
  • This embodiment provides a fan, specifically a bladeless fan, which includes the power system in the above-mentioned embodiment 3 and has all its technical advantages, which will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Une roue éolienne à flux mixte, un ensemble ventilateur, un système d'alimentation et un ventilateur sont divulgués. La roue éolienne à flux mixte comprend un moyeu (1) et une pluralité de pales (2) disposées dans la direction circonférentielle du moyeu (1) ; chacune des pales (2) présente une surface d'aspiration (21) et une surface de pression (22) ; et un angle tangentiel d'entrée d'air α est de [25°, 40°], et un angle tangentiel de sortie d'air β est de [30°, 40°]. Sous la contrainte de l'angle tangentiel d'entrée d'air et de l'angle tangentiel de sortie d'air de la roue éolienne à flux mixte, l'angle de direction d'un flux d'air dans la roue éolienne à flux mixte est faible, et la perte d'énergie cinétique lors du processus de direction peut être réduite, et par conséquent, la pression de sortie d'air et le volume de sortie d'air de la roue éolienne à flux mixte sont garantis.
PCT/CN2020/139932 2020-04-16 2020-12-28 Roue éolienne à flux mixte, ensemble ventilateur, système d'alimentation et ventilateur WO2021208496A1 (fr)

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CN202010302961.3 2020-04-16
CN202010302961.3A CN111379737A (zh) 2020-04-16 2020-04-16 混流风轮、风机组件、动力系统、风扇

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114722518A (zh) * 2022-03-16 2022-07-08 中国航发沈阳发动机研究所 一种涡轮基本叶型参数化设计方法
CN116379001A (zh) * 2023-04-20 2023-07-04 沃杰(北京)科技有限公司 一种高性能涡轮风机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379737A (zh) * 2020-04-16 2020-07-07 珠海格力电器股份有限公司 混流风轮、风机组件、动力系统、风扇

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270995A (ja) * 1988-09-05 1990-03-09 Matsushita Electric Ind Co Ltd 斜流羽根車
CN201560805U (zh) * 2009-07-18 2010-08-25 大同北方天力增压技术有限公司 一种高效混流涡轮
CN107503981A (zh) * 2017-09-20 2017-12-22 江苏大学 一种中低比转速混流泵叶轮设计方法
CN209818389U (zh) * 2019-02-27 2019-12-20 深圳市高科润电子有限公司 一种离心风机叶轮
CN111379737A (zh) * 2020-04-16 2020-07-07 珠海格力电器股份有限公司 混流风轮、风机组件、动力系统、风扇
CN212225589U (zh) * 2020-04-16 2020-12-25 珠海格力电器股份有限公司 混流风轮、风机组件、动力系统、风扇

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270995A (ja) * 1988-09-05 1990-03-09 Matsushita Electric Ind Co Ltd 斜流羽根車
CN201560805U (zh) * 2009-07-18 2010-08-25 大同北方天力增压技术有限公司 一种高效混流涡轮
CN107503981A (zh) * 2017-09-20 2017-12-22 江苏大学 一种中低比转速混流泵叶轮设计方法
CN209818389U (zh) * 2019-02-27 2019-12-20 深圳市高科润电子有限公司 一种离心风机叶轮
CN111379737A (zh) * 2020-04-16 2020-07-07 珠海格力电器股份有限公司 混流风轮、风机组件、动力系统、风扇
CN212225589U (zh) * 2020-04-16 2020-12-25 珠海格力电器股份有限公司 混流风轮、风机组件、动力系统、风扇

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114722518A (zh) * 2022-03-16 2022-07-08 中国航发沈阳发动机研究所 一种涡轮基本叶型参数化设计方法
CN114722518B (zh) * 2022-03-16 2024-03-19 中国航发沈阳发动机研究所 一种涡轮基本叶型参数化设计方法
CN116379001A (zh) * 2023-04-20 2023-07-04 沃杰(北京)科技有限公司 一种高性能涡轮风机

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