2020/3/23更新:
相信很多朋友都有用过离心风机,特别是4-72型号。那么是真的熟悉它的特性与构造吗?
I believe that many friends have used centrifugal fans, especially the 4-72 model. Is it really familiar with its characteristics and structure?
今天就让小编带大家好好认识下这款风机。
Today, let's have a good understanding of this fan.
工作原理:
working principle:
风机都是根据动能转换为势能的原理,利用快速旋转的后倾风轮将空气加速,转变方向,
According to the principle of converting kinetic energy into potential energy, the fans use the fast rotating backward tilt wheel to accelerate the air and change the direction,
使得动能转换成压力。在单级离心式风机中,空气从进风口轴向进入后倾风轮,空气经
To convert kinetic energy into pressure. In a single-stage centrifugal fan, the air enters the backward inclined fan wheel axially from the air inlet and passes through the
后倾风轮后改变流向为径向输出,风压增高主要发生在后倾风轮中。
The flow direction of the caster is changed to radial output, and the increase of air pressure mainly occurs in the caster.
构造:
Structure:
4-72离心风机主要由蜗壳、后倾风轮、传动系统以及电机构成。
4-72 centrifugal fan is mainly composed of volute, backward tilt fan, transmission system and motor.
蜗壳:由加厚钢板压制而成,坚固,美观。
Spiral case: it is made of thickened steel plate. It is solid and beautiful.
后倾风轮:由叶片以及压制的弧形前盘组成。
Backward tilt wind wheel: composed of blades and pressed arc front plate.
注意事项:
matters needing attention:
安装使用前对各个零部件进行检查,查看是否损坏,缺失以及摩擦;
Before installation and use, check all parts to see whether they are damaged, missing and friction;
运转前查看机壳内是否存留杂物;
Check whether there are any sundries in the casing before operation;
常见故障检查:
Common fault check:
电机冒烟或噪音过大,应立即停机检查维修;
If the motor smokes or makes too much noise, it shall be stopped immediately for inspection and maintenance;
产生剧烈的振动,立即停机检查;
In case of severe vibration, stop the machine immediately for inspection;
存在明显的金属摩擦声音,应立即停机查看风轮或传动装置;
In case of obvious metal friction sound, stop the machine immediately to check the wind wheel or transmission device;
相关产品:
4-72离心风机
业务联系:18512099438
4-72离心风机有时会因为工作嘅特殊需求,要较瓦背顶风机嘅风量(定义:单位时间内空气嘅流通量)大细,从而令其风量去到所使嘅条件裏面食。而目前较风机风量嘅方法,有两种,一种系风阀适应,一种系进口叶片适应,兼夹每种较方式方法都具有唔同嘅较效果,比如:
一、风阀较出口风阀较:系改变管网嘅属性,而唔系改变瓦背顶风机(roof ventilator)嘅属性。救火
排烟风机选用主要睇引数为工温度、风量、晒定、效率、襍讯、电机功率、转速同轴功率。风量(定义:单位时间内空气嘅流通量)较范围(fàn wéi)通常系风机额定效能曲线下方嘅所有工况。由于用人为加大管网阻力嘅方法嚟改变管网属性,压降消耗(consume)喺关小风阀时惹嘅无附加阻力上,较嘅经济(jīng jì)性差。进口风阀较:当配管设置喺风机嘅吸入侧嘅时候,其较原理与出口风阀相同;但当配管设置喺风机嘅排风侧时,佢通过改变风机嘅入口压力,嚟改变风机嘅效能曲线,故较嘅经济性好。而蜗线风阀适应,系通过改转风机嘅出口积,嚟改变风机嘅属性,相对于风量嘅少,功率(指物体喺单位时间内所做嘅功嘅几多)变化细,节能唔骚住。呢两种适应,原则上可使用喺额定曲线下嘅所有工况,可唔可以令喘振啲同小流量方向偏移,就,广泛(extensive)噉应用喺一般具有入墙转速嘅瓦背顶风机上。
二、进口叶片较进口叶片适应,系通过较叶片,令吸入叶轮嘅气流方向变化,改变风机嘅效能曲线。玻璃钢边墙风机发展新技术、提高效率、降低能耗、便于清洗维护、增加油烟净化功能、系新型
厨房专用风机嘅发展方向。4-72离心风机系一种可以将厨房中加工嘢食过程中惹嘅异味、高温、油烟气体快手排行嘅机,应该机特点系忍高温效能良好、效率高。瓦背顶风机进口气流嘅正旋绕适应,可实现进口导叶野为零度时效能曲线以下嘅全部工况。而进口气流嘅负旋绕适应,可提高风机嘅压力同流量,但较范围(fàn wéi)有一定嘅限度。所以当需要较瓦背顶风机嘅风量大钟,可根据自己嘅风机结构与及使用需求情况嚟选择更为啱嘅方法进行适应,从而喺唔损坏风机机体嘅前提下,令风机去到良好嘅运转状态,促使风量符合自己工况嘅要求。