CN111677693A - High-pressure cooling fan for large-flow low-noise fuel cell automobile - Google Patents
High-pressure cooling fan for large-flow low-noise fuel cell automobile Download PDFInfo
- Publication number
- CN111677693A CN111677693A CN202010438227.XA CN202010438227A CN111677693A CN 111677693 A CN111677693 A CN 111677693A CN 202010438227 A CN202010438227 A CN 202010438227A CN 111677693 A CN111677693 A CN 111677693A
- Authority
- CN
- China
- Prior art keywords
- outer ring
- blade
- fuel cell
- dimensional
- cooling fan
- 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.)
- Granted
Links
Images
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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a high-pressure cooling fan of a large-flow low-noise fuel cell automobile, which comprises a hub, fan blades, an outer ring and a wind protection ring, wherein the hub and the outer ring are coaxially arranged, the fan blades are fixed between the hub and the outer ring and are distributed at equal intervals in the circumferential direction by taking a rotating axis as a center, the wind protection ring is arranged on the outer side of the outer ring, the fan blades comprise a plurality of two-dimensional blade profiles, the two-dimensional blade profiles are inclined at a certain blade installation angle, the two-dimensional blade profiles are projected to a corresponding circumferential cylindrical section to form a three-dimensional blade profile, the three-dimensional blade profiles from a blade root to a blade tip are superposed to the inner side of the outer ring along a set front edge stacking line, the installation angle of each two-dimensional blade profile and the normalized radius of the cylindrical section of the two-dimensional blade profile are in a polynomial function relationship, and the. Compared with the prior art, the fan improves the gas flow, effectively inhibits turbulent noise, and has the characteristics of low noise and high flow at high rotating speed.
Description
Technical Field
The invention relates to an automobile cooling fan, in particular to a high-pressure cooling fan of a high-flow low-noise fuel cell automobile.
Background
In recent years, the automotive industry has increasingly studied thermal management. The cooling fan is an important part in an automobile cooling system, the efficiency and the performance of the cooling fan are one of important indexes for evaluating the performance of the whole automobile heat dissipation system, and the selection of a proper cooling fan is very important for the cooling system and the air conditioning system. In a fuel cell vehicle, a fuel cell stack, an air compressor, a driving motor, a controller and the like generate a large amount of heat during operation. The maximum working temperature of the fuel cell stack is required to be about 20 ℃ lower than that of the traditional engine, the gas-liquid temperature difference at the cooling water is far lower than that of the traditional engine, and the heat dissipation through exhaust is difficult, so that the heat dissipation problem becomes an important problem for fuel cell automobiles.
In order to meet the higher heat dissipation requirement of a fuel cell automobile, a 350V high-pressure fan with high air volume is developed and adopted to replace a traditional 12V cooling fan of the automobile. The high-pressure fan usually works under the working condition of high pressure and large air volume, the sound quality is poor, and compared with the traditional automobile cooling fan, the noise is obviously increased. The cooling fan generally adopts a single-stage axial flow fan, mechanical energy is converted into gas energy by virtue of rotating blades, and the gas overcomes the resistance of the power cabin and drives air to flow so as to transfer heat out of the power cabin. The aerodynamic noise of the fan mainly comprises narrow-band rotation noise, broadband eddy noise and vibration low-frequency noise generated by unbalanced operation of the fan, and in view of the harm and strict limitation of the noise, in the research and development process of a fuel cell automobile, the high-voltage fan noise identification and control research becomes a difficult problem in academic research and engineering practice.
In the design and optimization stage of the high-pressure cooling fan, the pneumatic performance and the noise performance of the fan need to be ensured to meet the requirements at the same time. The noise value is increased along with the increase of the flow and the pressure of the fan, the high flow generally means high noise, the two indexes are mutually influenced and difficult to achieve balance, and the noise is greatly improved inevitably due to the fact that the air quantity of the fan is increased by blindly increasing the rotating speed of the fan, so that a large-flow low-noise cooling fan structure needs to be developed aiming at the high-rotating-speed working condition in a fuel cell automobile.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-pressure cooling fan for a high-flow low-noise fuel cell automobile.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a large-traffic low noise fuel cell car high pressure cooling fan, includes wheel hub, flabellum, outer loop and protects the wind circle, wheel hub and the coaxial setting of outer loop, the flabellum fix between wheel hub and outer loop and use the axis of rotation to be equidistant distribution in the week, protect the wind circle and set up in the outer loop outside, the flabellum include a plurality of two-dimensional leaf types, two-dimensional leaf type inclines with certain blade setting angle, becomes three-dimensional leaf type on two-dimensional leaf type projection to corresponding circumference cylinder section, the flabellum superposes extremely along the leading edge stacking line of setting for from the blade root to the three-dimensional leaf type of apex the outer loop is inboard, the setting angle of each two-dimensional leaf type is polynomial function relation with the normalization radius of this two-dimensional leaf type cylinder section, normalization radius be three-dimensional leaf type cylinder section radius and flabellum apex department cylinder section radius's ratio.
The installation angle of the two-dimensional blade profile and the normalized radius of the cylindrical section of the two-dimensional blade profile form a polynomial function relationship as follows: theta-15.894 x4+47.575x3-51.656x2+23.53x-3.2213, where θ is the setting angle of the two-dimensional airfoil and x is the normalized radius of the cylindrical section of the two-dimensional airfoil.
The leading edge stacking line is obtained by 4 times of non-uniform rational B spline curve fitting, and specifically: the front inclination angle of the front edge stacking line in the circumferential direction is set to be 18-22 degrees, 3 control points are taken from an axial projection curve of the front edge stacking line, the distance from the intersection point of the front edge stacking line and a hub to the projection point of each control point on the first and last connecting lines of the stacking line is L1, L2 and L3, the projection height of each control point and the first and last connecting lines of the front edge stacking line is H1, H2 and H3, the length of the first and last connecting lines of the front edge stacking line is L, L1/L is 0.046-0.066, H1/L is 0.056-0.076, L2/L is 0.135-0.175, H2/L is 0.191-0.231, L3/L is 0.494-0.534, H3/L is 0.176-0.216, and a front edge stacking line function is obtained through 4-time non-uniform rational B curve fitting.
The outer ring is a uniform transition expansion structure which is warped at the airflow outlet.
The outer ring comprises an airflow inlet and an airflow outlet, the wall surface of the airflow inlet is of a straight or slightly-expanded annular structure, the wall surface of the airflow outlet is of a large-fillet radial warping structure, and the blade tips of the fan blades are connected with the top end of the warping structure.
The ratio of the diameter of the hub to the inner diameter of the airflow inlet of the outer ring is 0.38-0.42.
The ratio of the inner diameter of the airflow inlet to the inner diameter of the airflow outlet of the outer ring is 0.95-0.98.
The wall thickness of the outer ring is 1.8-2.2 mm.
The air protection ring is of a stepped annular structure with a small air inlet and a large air outlet.
The radial clearance between the wind protection ring and the outer ring is 4 mm-8 mm.
Compared with the prior art, the invention has the following advantages:
(1) the cooling fan has a simple structure, effectively reduces the boundary layer separation phenomenon of the suction surface of the fan blade and the vortex turbulence at the blade tip of the fan, improves the gas flow, effectively inhibits the turbulent noise, and has the characteristics of low noise and high flow at high rotating speed;
(2) according to the invention, on the basis of the fixed two-dimensional blade profile, the fan performance can be improved on the basis of the original fan by designing the installation angle and the shape of the front edge stacking line;
(3) the outer ring structure of the invention connects the fan blades together, thus improving the rigidity of the fan blades, eliminating the blade tip clearance, reducing the turbulence noise of the blade tips, reducing the noise generated by the collision of the airflow flowing into the straight or slightly expanded outer ring airflow inlet and the blade tips, increasing the flow speed when flowing through the warped outer ring airflow outlet, increasing the smoothness, effectively avoiding the backflow at the outlet and improving the pneumatic performance.
Drawings
FIG. 1 is a schematic structural diagram of a high-pressure cooling fan of a high-flow low-noise fuel cell vehicle according to the present invention;
FIG. 2 is a schematic structural view of a two-dimensional airfoil according to the present invention;
FIG. 3 is a schematic view of the mounting of the stacking lines on the leading edge of the fan blade and the three-dimensional profiles according to the present invention;
FIG. 4 is a polynomial function plot of the stagger angle of the two-dimensional airfoil of the present invention versus the normalized radius of the cylindrical cross-section of the two-dimensional airfoil;
FIG. 5 is a schematic view of a leading edge stacking line parameterization of the present invention.
Fig. 6 is an axial sectional view of a high-pressure cooling fan for a high-flow low-noise fuel cell vehicle according to the present invention.
In the drawings, 1 is a hub; 2 is a fan blade; 3 is an outer ring; 4 is a wind protection ring; 5 is a driving motor; 21 is a two-dimensional blade-shaped cylindrical section; 22 is a leading edge stacking line; 31 is an outer ring section; 41. the section of the wind-protecting ring.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Examples
As shown in fig. 1, the high-pressure cooling fan for the large-flow low-noise fuel cell automobile comprises a hub 1, fan blades 2, an outer ring 3 and an air protection ring 4, wherein the hub 1 and the outer ring 3 are coaxially arranged, the fan blades 2 are fixed between the hub 1 and the outer ring 3 and are distributed at equal intervals in the circumferential direction by taking a rotation axis as a center, the number of the fan blades 2 is 7-10, the air protection ring 4 is arranged on the outer side of the outer ring 3, and the fan is controlled to rotate by a driving motor 5 arranged in the hub 1. The fan blade 2 comprises a plurality of two-dimensional blade profiles, the two-dimensional blade profiles are inclined at a certain blade installation angle, the two-dimensional blade profiles are projected to the corresponding circumferential cylindrical sections to form three-dimensional blade profiles, the fan blade 2 is overlapped to the inner side of the outer ring 3 along the set front edge stacking line 22 from the blade root to the blade tip, the installation angle of each two-dimensional blade profile and the normalized radius of the two-dimensional blade profile cylindrical section are in a polynomial function relationship, and the normalized radius is the ratio of the radius of the three-dimensional blade profile cylindrical section to the radius of the cylindrical section at the blade tip of the fan blade 2. In the embodiment, 8 two-dimensional blade profiles are arranged, and the two-dimensional blade profiles are given blade profiles, so that the invention aims to: on the basis of the determined two-dimensional blade profile, the fan performance can be improved on the basis of the original fan by designing the installation angle and the shape of the front edge stacking line 22.
In FIG. 2, a given two-dimensional blade profile is shown, in which θ is the mounting angle (unit: rad) of the two-dimensional blade profile, and in FIG. 3, the three-dimensional blade profile of the fan blade 2 from the blade root to the blade tip is superimposed along a predetermined leading-edge stacking line 22 on the inner side of the outer ring 3, and in FIG. 3, R is shown1、R2、……、R5Respectively, the radii of the 5 two-dimensional lobed cylindrical sections 21 shown. The polynomial function relationship between the installation angle of each two-dimensional blade profile and the normalized radius of the cylindrical section of the two-dimensional blade profile is shown in fig. 4, and specifically comprises the following steps: theta-15.894 x4+47.575x3-51.656x2+23.53x-3.2213, where θ is the installation angle of the two-dimensional airfoil, x is the normalized radius of the cylindrical section of the two-dimensional airfoil, and y is θ in fig. 4. The coefficients of the polynomial function may not be exactly the same as the above formula, but the degree of fitting of the trend line to the R of the curve2The value is greater than 0.99. The erection angle and the normalized radius polynomial fitted with 8 designed sections of the blade 2, which are taken from the inner diameter and the outer diameter, of each section are shown in the following table 1, and R of the polynomial of the blade erection angle and the normalized radius of the section on which the blade is arranged relative to the function is obtained2The value was 0.9989:
TABLE 1 two-dimensional blade Profile section design parameters
| Number of section n | Radius of cross section Rn(mm) | Normalized radius of cross-section Rn/R | Blade mounting angle theta (rad) |
| 1 | 71.3 | 0.413357 | 0.574036 |
| 2 | 82.5 | 0.478289 | 0.590326 |
| 3 | 88.25 | 0.511624 | 0.582422 |
| 4 | 92.5 | 0.536263 | 0.562114 |
| 5 | 110 | 0.637718 | 0.481986 |
| 6 | 130 | 0.753667 | 0.415286 |
| 7 | 150 | 0.869616 | 0.372097 |
| 8 | 172.5 | 1 | 0.335039 |
As shown in fig. 5, the leading edge stacking line 22 is obtained by 4 non-uniform rational B-spline curve fits, specifically: the front inclination angle of the front edge stacking line 22 in the circumferential direction is set to be 18-22 degrees, 3 control points are taken from an axial projection curve of the front edge stacking line 22, the distance from the intersection point of the front edge stacking line 22 and the hub 1 to the projection point of each control point on the first and last connecting lines of the stacking line is L1, L2 and L3, the projection height of each control point and the first and last connecting lines of the front edge stacking line 22 is H1, H2 and H3, the length of the first and last connecting lines of the front edge stacking line 22 is L, L1/L is controlled to be 0.046-0.066, H1/L is 0.056-0.076, L2/L is 0.135-0.175, H2/L is 0.191-0.231, L3/L is 0.494-0.534, H3/L is 0.176-0.216, and a non-uniform front edge B stacking line curve fitting is obtained through 4 times of rational B stacking line curve fitting. In fig. 5, the forward angle of the leading edge stacking line 22 in the circumferential direction is represented by a point a at which the leading edge stacking line 22 intersects the hub 1, a point a at which the leading edge stacking line 22 intersects the hub 1 is also a starting point of the leading edge stacking line 22, a point B is a last point of the leading edge stacking line 22, and a line AB segment is a line connecting the leading edge stacking line 22 and the last line.
According to the invention, on the basis of the determined two-dimensional blade profile, the fan performance can be improved on the basis of the original fan by designing the installation angle and the shape of the front edge stacking line 22: effectively reduces the boundary layer separation phenomenon of the suction surface of the fan blade 2 and the vortex turbulence at the tip of the fan blade 2, improves the gas flow, effectively inhibits the turbulence noise, and has the characteristics of low noise and high flow at high rotating speed.
As can be seen in fig. 6, the outer ring 3 is a uniformly transitional expansion structure that warps at the gas flow outlet, as seen by the outer ring cross-section 31. The outer ring 3 comprises an airflow inlet and an airflow outlet, the wall surface of the airflow inlet is of a flat or slightly expanded annular structure, the wall surface of the airflow outlet is of a large-fillet radial warping structure, and the tip of the fan blade 2 is connected with the top end of the warping structure. The ratio of the diameter of the hub 1 to the inner diameter of the airflow inlet of the outer ring 3 is 0.38-0.42, and the ratio of the diameter of the hub to the inner diameter of the airflow inlet of the outer ring is 0.4 in the embodiment. The ratio of the inner diameter of the airflow inlet to the inner diameter of the airflow outlet of the outer ring 3 is 0.95-0.98, and the ratio of the inner diameter of the airflow inlet to the inner diameter of the airflow outlet of the outer ring is 0.96 in the embodiment. The wall thickness of the outer ring 3 is 1.8-2.2 mm, and 2mm is taken in the embodiment. As can be seen from the section 41 of the wind-protecting ring, the wind-protecting ring 4 is a stepped annular structure with a small airflow inlet and a large airflow outlet. The radial clearance between the wind-guard ring 4 and the outer ring 3 is 4 mm-8 mm, and 6mm is taken in the embodiment. The outer ring 3 structure of the invention connects the fan blades 2 together, thus improving the rigidity of the fan blades 2, eliminating blade top gaps, reducing turbulence noise of blade tips, reducing noise generated by collision of air flow flowing into the straight or slightly expanded outer ring 3 air flow inlet, increasing flow speed when flowing through the warped outer ring 3 air flow outlet, increasing smoothness, effectively avoiding backflow at the outlet and improving pneumatic performance.
In the above description, the axial direction is the direction of the fan rotation axis, and the radial direction is the direction of the fan diameter.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. A high-pressure cooling fan of a large-flow low-noise fuel cell automobile comprises a hub (1), fan blades (2), an outer ring (3) and a wind protection ring (4), wherein the hub (1) and the outer ring (3) are coaxially arranged, the fan blades (2) are fixed between the hub (1) and the outer ring (3) and are distributed at equal intervals in the circumferential direction by taking a rotating axis as a center, and the wind protection ring (4) is arranged on the outer side of the outer ring (3), and the high-pressure cooling fan is characterized in that the fan blades (2) comprise a plurality of two-dimensional blade profiles which are inclined at a certain blade installation angle, the two-dimensional blade profiles are projected to a corresponding circumferential cylindrical section to form a three-dimensional blade profile, the three-dimensional blade profiles of the fan blades (2) from a blade root to a blade tip are superposed to the inner side of the outer ring (3) along a set front edge stacking line (22), and the installation angle of each two-dimensional blade profile and the normalized radius of the cylindrical section, the normalized radius is the ratio of the radius of the section of the three-dimensional blade-shaped cylinder to the radius of the section of the cylinder at the blade tip of the fan blade (2).
2. The high-pressure cooling fan for the large-flow low-noise fuel cell automobile according to claim 1, wherein a polynomial function relationship between the installation angle of the two-dimensional blade profile and the normalized radius of the cylindrical section of the two-dimensional blade profile is as follows: theta-15.894 x4+47.575x3-51.656x2+23.53x-3.2213, where θ is the setting angle of the two-dimensional airfoil and x is the normalized radius of the cylindrical section of the two-dimensional airfoil.
3. A high flow, low noise fuel cell automotive high pressure cooling fan according to claim 1, characterized in that said leading edge stacking line (22) is obtained by 4 non-uniform rational B-spline curve fits, in particular: the front inclination angle of the front edge stacking line (22) in the circumferential direction is set to be 18-22 degrees, 3 control points are taken from an axial projection curve of the front edge stacking line (22), the distance from the intersection point of the front edge stacking line (22) and the hub (1) to the projection point of each control point on the first and last connecting lines of the front edge stacking line (22) is L1, L2 and L3, the projection height of the first and last connecting lines of each control point and the front edge stacking line (22) is H1, H2 and H3, the length of the first and last connecting lines of the front edge stacking line (22) is L, L1/L is controlled to be 0.046-0.066, H1/L is 0.056-0.076, L2/L is 0.135-0.175, H2/L is 0.191-0.231, L3/L is 0.494-0.534, H3/L is 0.176-0.216, and a multi-order function of the front edge stacking line (22) is obtained through non-uniform rational B-order fitting.
4. The high-pressure cooling fan for the large-flow low-noise fuel cell automobile according to claim 1, wherein the outer ring (3) is a uniform transition expansion structure which is warped at the airflow outlet.
5. The high-pressure cooling fan for the large-flow low-noise fuel cell automobile according to claim 4, wherein the outer ring (3) comprises an airflow inlet and an airflow outlet, the wall surface of the airflow inlet is of a straight or slightly-expanded annular structure, the wall surface of the airflow outlet is of a large-fillet radial buckling structure, and the tip of the fan blade (2) is connected with the top end of the buckling structure.
6. The high-flow low-noise fuel cell automobile high-pressure cooling fan according to claim 4, wherein the ratio of the diameter of the hub (1) to the inner diameter of the airflow inlet of the outer ring (3) is 0.38-0.42.
7. The high-pressure cooling fan for the large-flow low-noise fuel cell automobile according to claim 4, wherein the ratio of the inner diameter of the airflow inlet to the inner diameter of the airflow outlet of the outer ring (3) is 0.95-0.98.
8. The high-flow low-noise fuel cell automobile high-pressure cooling fan according to claim 4, wherein the wall thickness of the outer ring (3) is 1.8-2.2 mm.
9. The high-pressure cooling fan for the high-flow low-noise fuel cell automobile according to claim 1, wherein the air protecting ring (4) is of a stepped annular structure with a small air inlet and a large air outlet.
10. The high-flow low-noise fuel cell automobile high-pressure cooling fan according to claim 9, wherein the radial clearance between the air protecting ring (4) and the outer ring (3) is 4 mm-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438227.XA CN111677693B (en) | 2020-05-21 | 2020-05-21 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438227.XA CN111677693B (en) | 2020-05-21 | 2020-05-21 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677693A true CN111677693A (en) | 2020-09-18 |
| CN111677693B CN111677693B (en) | 2021-10-08 |
Family
ID=72452768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010438227.XA Active CN111677693B (en) | 2020-05-21 | 2020-05-21 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111677693B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610513A (en) * | 2020-12-04 | 2021-04-06 | 北京航空航天大学 | Non-uniform wave-shaped front edge stationary blade and modeling method thereof |
| CN113221484A (en) * | 2021-06-02 | 2021-08-06 | 上海宝钢节能环保技术有限公司 | Rapid selection method, device and equipment for in-service remanufacturing design scheme of fan |
| CN114218813A (en) * | 2022-02-18 | 2022-03-22 | 中国汽车技术研究中心有限公司 | Fuel cell flow resistance function construction method and flow resistance value prediction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213235A (en) * | 2011-04-01 | 2011-10-12 | 海尔集团公司 | Blade of air-condition axial fan and air-condition axial fan |
| CN103486079A (en) * | 2013-10-12 | 2014-01-01 | 上海马陆日用友捷汽车电气有限公司 | High-efficiency low-noise fan blade |
| US20160215788A1 (en) * | 2015-01-28 | 2016-07-28 | MTU Aero Engines AG | Gas turbine axial compressor |
| CN205858750U (en) * | 2016-07-27 | 2017-01-04 | 江苏超力电器有限公司 | A kind of big flow low noise automobile air conditioning system condenser fan |
| CN107131153A (en) * | 2017-07-12 | 2017-09-05 | 成都华川电装有限责任公司 | Aerofoil fan |
| CN209228701U (en) * | 2018-10-17 | 2019-08-09 | 中国电建集团透平科技有限公司 | A kind of high-pressure shaft flowing tune fan blade |
-
2020
- 2020-05-21 CN CN202010438227.XA patent/CN111677693B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213235A (en) * | 2011-04-01 | 2011-10-12 | 海尔集团公司 | Blade of air-condition axial fan and air-condition axial fan |
| CN103486079A (en) * | 2013-10-12 | 2014-01-01 | 上海马陆日用友捷汽车电气有限公司 | High-efficiency low-noise fan blade |
| US20160215788A1 (en) * | 2015-01-28 | 2016-07-28 | MTU Aero Engines AG | Gas turbine axial compressor |
| CN205858750U (en) * | 2016-07-27 | 2017-01-04 | 江苏超力电器有限公司 | A kind of big flow low noise automobile air conditioning system condenser fan |
| CN107131153A (en) * | 2017-07-12 | 2017-09-05 | 成都华川电装有限责任公司 | Aerofoil fan |
| CN209228701U (en) * | 2018-10-17 | 2019-08-09 | 中国电建集团透平科技有限公司 | A kind of high-pressure shaft flowing tune fan blade |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610513A (en) * | 2020-12-04 | 2021-04-06 | 北京航空航天大学 | Non-uniform wave-shaped front edge stationary blade and modeling method thereof |
| CN112610513B (en) * | 2020-12-04 | 2021-08-31 | 北京航空航天大学 | Non-uniform wave-shaped front edge stationary blade and modeling method thereof |
| CN113221484A (en) * | 2021-06-02 | 2021-08-06 | 上海宝钢节能环保技术有限公司 | Rapid selection method, device and equipment for in-service remanufacturing design scheme of fan |
| CN113221484B (en) * | 2021-06-02 | 2022-11-11 | 上海宝钢节能环保技术有限公司 | Rapid selection method, device and equipment for in-service remanufacturing design scheme of fan |
| CN114218813A (en) * | 2022-02-18 | 2022-03-22 | 中国汽车技术研究中心有限公司 | Fuel cell flow resistance function construction method and flow resistance value prediction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111677693B (en) | 2021-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111677693B (en) | High-pressure cooling fan for large-flow low-noise fuel cell automobile | |
| EP2257709B1 (en) | Hybrid flow fan apparatus | |
| JP6001999B2 (en) | Airfoil, compressor, vane, gas turbine engine, and stator row | |
| US8814510B2 (en) | Turbine nozzle for air cycle machine | |
| JP5689538B2 (en) | Outdoor cooling unit for vehicle air conditioner | |
| KR101472326B1 (en) | Axial Flow Fan | |
| CN107642491B (en) | Ternary fluidization centrifugal fan for cooling motor car and high-speed rail traction transformer | |
| CN103016069B (en) | Air cycle machine, for its turbine nozzle and turbine nozzle installation method | |
| CN104981365A (en) | Outdoor cooling unit for air conditioning device for vehicle | |
| CN106939902B (en) | Energy-saving straight-wall front and rear disk variable-curvature curve element ternary impeller and centrifugal fan adopting same | |
| US10584716B2 (en) | Aerodynamically and acoustically improved car fan | |
| CN112974734B (en) | Manufacturing method of integrally formed swept combined blade | |
| CN114607641B (en) | Guide vane structure of axial flow fan and axial flow fan | |
| US20180142557A1 (en) | Turbocharger impeller blade stiffeners and manufacturing method | |
| CN103016369B (en) | Novel axial-flow fan with small-aspect-ratio blades having obliquely-cut and twisted blade roots | |
| EP3919724B1 (en) | Characteristic distribution for rotor blade of booster rotor | |
| US11286779B2 (en) | Characteristic distribution for rotor blade of booster rotor | |
| CN114135521A (en) | Centrifugal compressor stage serial diffuser | |
| CN101952605A (en) | The inhibition of axial fan sucks the architrave structure of turbulent flow | |
| CN113374733A (en) | Blade, fan and aircraft environmental control system | |
| US20230332505A1 (en) | Guide vane ring and rotor blade ring for a turbofan engine | |
| CN217682348U (en) | Axial flow fan blade and axial flow fan | |
| US11840939B1 (en) | Gas turbine engine with an airfoil | |
| CN219711860U (en) | Centrifugal wind wheel, centrifugal fan and air conditioning system | |
| CN114810660B (en) | Environment-friendly energy-saving ventilation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |