CN201560963U - 一种高效率的轴流风机 - Google Patents

一种高效率的轴流风机 Download PDF

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CN201560963U
CN201560963U CN2009202639936U CN200920263993U CN201560963U CN 201560963 U CN201560963 U CN 201560963U CN 2009202639936 U CN2009202639936 U CN 2009202639936U CN 200920263993 U CN200920263993 U CN 200920263993U CN 201560963 U CN201560963 U CN 201560963U
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cross
impeller
flow fan
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汪义玲
邓雨生
杨日辉
梁盼盼
刘基照
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NANFANG VENTILATOR CO Ltd
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NANFANG VENTILATOR CO Ltd
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Abstract

一种高效率轴流风机,包括有叶片(11)和轮毂(12),叶片(11)固定连接在轮毂(12)上构成轴流式叶轮,叶片(11)截面形状为机翼形,采用C4机翼叶型,叶轮半径为R,所述叶片(11)的几何形状由下述参数确定:以叶轮的转动中心为中心轴、以七个不同半径Rn的圆柱面截割叶片(11),再将所得各截面展开,得到各展开截面的弦长(Bn)和中心弧半径(Dn)以及叶片前缘(8)到叶片桨根中轴线(9)弦长(An),叶片(11)以端部为基准向根部逐渐展开的各截面中心线与端部截面中心线之间的夹角(θ)为0°到27°。具有高压力、高效率、大流量、低噪声的优点。

Description

一种高效率的轴流风机
技术领域
本实用新型涉及一种轴流风机。
背景技术
风机是用于输送气体的机械,轴流风机以其结构简单、制造方便、流量大等特点被广泛应用在各行各业中,尤其是地铁、隧道、矿井的通风系统;如何提高风机的效率、降低噪音、高压力、大流量是这类风机的研究目标。通过对轴流风机的空气动力学研究表明,风机风量和噪声的大小与叶轮的气动特性密切相关,而叶片的几何形状是决定叶轮气动特性的主要因素。因此,合理设计风机叶片几何形状,是降低噪声、增加风量的有效手段。
实用新型内容
本实用新型要解决的技术技术问题是,提供一种高压力、高效率、大流量、低噪声的高效率轴流风机。
为解决上述述问题,本实用新型的一种高效率轴流风机,包括有叶片、轮毂、风筒、导叶部、电机、电机支撑板、风筒支脚;叶片固定连接在轮毂上构成轴流式叶轮;轴流式叶轮安装在电机的轴头;电机支撑板两端用螺栓分别连接在风筒和电机上;在风筒上用螺栓固定有导叶部;风筒外端同时还固定有两个支脚。所述叶片截面形状为机翼形,采用C4机翼叶型;其经过由叶片端部向内的裁剪,可以形成不同的轮毂比;根据产品的系列号或客户的需要,确定叶轮半径即叶片端部半径为R,所述叶片的几何形状由下述参数确定:以叶轮的转动中心为中心轴、以七个不同半径R n的圆柱面截割叶片,再将所得各截面展开,得到各展开截面的弦长B n和中心弧半径D n以及叶片前缘到叶片桨根中轴线的弦长A n,其数值分别如下:
(1-1)截面:R1/R=0.4 B1/R=0.4938 A1/B1=0.4 D1/R=0.978
(2-2)截面:R2/R=0.5 B2/R=0.4889 A2/B2=0.4 D2/R=1.1
(3-3)截面:R3/R=0.6 B3/R=0.4693 A3/B3=0.4 D3/R=1.357
(4-4)截面:R4/R=0.7 B4/R=0.4498 A4/B4=0.4 D4/R=1.597
(5-5)截面:R5/R=0.8 B5/R=0.4302 A5/B5=0.4 D5/R=1.635
(6-6)截面:R6/R=0.9 B6/R=0.4107 A6/B6=0.4 D6/R=1.61
(7-7)截面:R7/R=1   B7/R=0.3911 A7/B7=0.4 D7/R=1.387
叶片以端部为基准向根部逐渐展开的各截面中心线与端部截面中心线之间的夹角θ为0°到27°。
确定叶轮半径R后,则可通过上述比式确定叶片的其它基本参数。
所述叶片采用动叶静止可调结构,随性能的需求来调整叶片的安装角度,安装角度指叶片端部截面中心线与轮毂横截面之间的夹角,其范围为:15°~45°。
在所述轴流式叶轮的前、后端设有固定在风筒上的单板圆弧形前、后导叶;导叶部分单独成形,可以与风机叶轮任意组合,即:前导叶与叶轮组合,或叶轮与后导叶组合,或前导叶与叶轮及后导叶组合。
采用本实用新型的一种高效率轴流风机,具有高压力、高效率、大流量、低噪声的优点。
附图说明
图1为本实用新型的结构示意图。
图2为本实用新型的叶片的结构示意图。
图3为本实用新型的叶片的府视图。
图4为本实用新型的叶片截面翼形展开图。
具体实施方式
如图1所示,本实用新型的一种高效率轴流风机,包括有叶片11、轮毂12、风筒13、导叶14、电机15、电机支撑板16、风筒支脚17;叶片11通过螺栓紧固在轮毂12上构成轴流式叶轮;轴流式叶轮安装在电机15的轴头;电机支撑板16两端用螺栓分别连接在风筒13和电机15上;在风筒13上用螺栓固定有导叶14;风筒13外端同时还固定有两个风筒支脚17。所述叶片11截面形状为机翼形,采用C4机翼叶型;叶片11经过由其端部向内的裁剪,可以形成不同的轮毂比;根据产品的系列号或客户的需要,确定叶轮半径即叶片11端部半径R,如R=600毫米,以叶轮的转动中心为中心轴、以七个不同半径Rn的圆柱面截割叶片11,再将所得各截面展开,得到各展开截面的弦长Bn和中心弧半径Dn以及叶片前缘8到叶片桨根中轴线9的弦长An,其数值分别如下:
1-1截面:R1/R=0.4 B1/R=0.4938 A1/B1=0.4 D1/R=0.978
2-2截面:R2/R=0.5 B2/R=0.4889 A2/B2=0.4 D2/R=1.1
3-3截面:R3/R=0.6 B3/R=0.4693 A3/B3=0.4 D3/R=1.357
4-4截面:R4/R=0.7 B4/R=0.4498 A4/B4=0.4 D4/R=1.597
5-5截面:R5/R=0.8 B5/R=0.4302 A5/B5=0.4 D5/R=1.635
6-6截面:R6/R=0.9 B6/R=0.4107 A6/B6=0.4 D6/R=1.61
7-7截面:R7/R=1   B7/R=0.3911 A7/B7=0.4 D7/R=1.387
叶片11以端部为基准向根部逐渐展开的各截面中心线与端部截面中心线之间的夹角θ为0°到27°。
确定叶轮半径R后,通过上表则可确定叶片11的其它基本参数。
所述叶片11采用动叶静止可调结构,随性能的需求来调整叶片11的安装角度α,安装角度α指叶片11端部截面中心线与轮毂12横截面之间的夹角,其范围为:15°~45°。
在所述叶轮的前、后端设有固定在风筒13上的单板圆弧形前、后导叶14;导叶14部分单独成形,其可以与风机叶轮任意组合,即:前导叶14与叶轮组合,或叶轮与后导叶14组合,或前导叶14与叶轮及后导叶14组合。

Claims (3)

1.一种高效率轴流风机,包括有叶片(11)和轮毂(12),叶片(11)固定连接在轮毂(12)上构成轴流式叶轮,叶片(11)截面形状为机翼形,采用C4机翼叶型,叶轮半径为R,其特征在于:所述叶片(11)的几何形状由下述参数确定:以叶轮的转动中心为中心轴、以七个不同半径Rn的圆柱面截割叶片(11),再将所得各截面展开,得到各展开截面的弦长(Bn)和中心弧半径(Dn)以及叶片前缘(8)到叶片桨根中轴线(9)的弦长(An),其数值分别如下:
(1-1)截面:R1/R=0.4B1/R=0.4938 A1/B1=0.4D1/R=0.978
(2-2)截面:R2/R=0.5B2/R=0.4889 A2/B2=0.4D2/R=1.1
(3-3)截面:R3/R=0.6B3/R=0.4693 A3/B3=0.4D3/R=1.357
(4-4)截面:R4/R=0.7B4/R=0.4498 A4/B4=0.4D4/R=1.597
(5-5)截面:R5/R=0.8B5/R=0.4302 A5/B5=0.4D5/R=1.635
(6-6)截面:R6/R=0.9B6/R=0.4107 A6/B6=0.4D6/R=1.61
(7-7)截面:R7/R=1B7/R=0.3911 A7/B7=0.4D7/R=1.387
叶片(11)以端部为基准向根部逐渐展开的各截面中心线与端部截面中心线之间的夹角(θ)为0°到27°。
2.根据权利要求1所述的一种高效率轴流风机,其特征在于:所述叶片(11)采用动叶静止可调结构,随性能的需求来调整叶片(11)的安装角度(α),安装角度(α)指叶片(11)端部截面中心线与轮毂横截面之间的夹角,其范围为:15°~45°。
3.根据权利要求1所述的一种高效率轴流风机,其特征在于:在所述轴流式叶轮的前、后端设有固定在风筒(13)上的单板圆弧形前、后导叶(14);导叶(14)部分单独成形,可以与风机叶轮任意组合,即:前导叶(14)与叶轮组合,或叶轮与后导叶(14)组合,或前导叶(14)与叶轮及后导叶(14)组合。
CN2009202639936U 2009-12-02 2009-12-02 一种高效率的轴流风机 Expired - Fee Related CN201560963U (zh)

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