离心风机之气体进入叶轮的原理 - 山东通风管道加工厂家

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离心风机之气体进入叶轮的原理

发布时间:2017/08/16

  离心风机是根据动能转换为势能的原理,济南排烟罩利用高速旋转的叶轮将气体加速,然后减速、改变流向,使动能转换成势能(压力)。

  The centrifugal fan is based on the principle that kinetic energy is converted to potential energy. The exhaust hood of Ji'nan uses a high-speed rotating impeller to accelerate the gas, and then slows down and changes the flow direction so that the kinetic energy is converted into potential energy (pressure).

  运送凉风常见的是中央空调的管道,这种管道需求加保温材料。螺旋风管可内贴保温材料,且表面看来漂亮。

  The most common way to carry cool air is the central air conditioner, which needs thermal insulation. The spiral pipe can be embedded with heat insulation material, and the surface looks beautiful.

  在单级离心风机中,气体从轴向进入叶轮,气体流经叶轮时改变成径向,然后进入扩压器。在扩压器中,气体改变了流动方向造成减速,这种减速作用将动能转换成压力能。压力增高主要发生在叶轮中,其次发生在扩压过程。在多级离心风机中,用回流器使气流进入下一叶轮,产生更高压力。

  In a single-stage centrifugal fan, the gas enters the impeller from the axial direction, the gas flows through the impeller, changes into radial, and then enters the diffuser. In a diffuser, the gas changes the direction of the flow, causing a deceleration that converts kinetic energy into pressure energy. Pressure increases mainly in the impeller, followed by the expansion process. In a multistage centrifugal fan, the flow of air into the lower impeller with a reflux device produces higher pressure.
油烟净化器

  排油烟饭店、酒楼、宾馆的厨房均有许多油烟发生,需求排出,运用圆形的风管即是油烟囱。而螺旋风管在这里即是充当油烟管。

天天乐棋牌  Hotel, restaurant, hotel lampblack kitchen has many smoke, demand for discharge, with circular duct is the chimney smoke。 And the spiral cyclone tube is used as the smoke pipe here。

  负压风机则整机采用CAD/CAM设计,具有投资成本低,风量大,噪音低,耗能小,运行平稳,寿命长,效率高等特点,百叶窗自动起闭达到防尘,防水,美观大方;既可吹风,也可抽风,是现代化车间降温通风的佳选择。环保、节能的负压风机将成通风降温设备市场主流。

  The negative pressure fan is the use of CAD/CAM design, with low cost, large volume, low noise, low energy consumption, stable operation, long service life, high efficiency, automatic shutter shut dustproof, waterproof, elegant appearance; can hair, but also ventilation, is the best choice for modern workshop ventilation cooling。 Environmental protection and energy-saving negative pressure fan will be the mainstream of ventilation and cooling equipment market。

  由于铁皮容易在各种环境下发生化学反应,造成腐蚀、生锈。而锌在干燥的空气中几乎不发生变化。

  Because the iron sheet is easy to react in various environments, it causes corrosion and rust. Zinc hardly changes in dry air.

天天乐棋牌  在潮湿的空气中,锌表面会生成致密的碱式碳酸锌膜。螺旋风管主要是在风管铁皮上镀上一层锌,对铁皮起到保护的作用。

  In the humid air, basic zinc carbonate, zinc surface will generate dense membrane. The spiral air pipe is mainly coated with a layer of zinc on the iron sheet of the wind pipe, and plays a protective role to the iron sheet.

天天乐棋牌  采用变频离心风机时,应以系统计算的总压力损失为额定风压,但风机电机功率应在计算值上附加15%~20%。

  When the centrifugal fan is used, the total pressure loss calculated by the system should be the rated air pressure, but the power of the fan motor should be added 15%~20% on the calculated value.

  本文的精彩内容来自济南排烟罩详细内容请点击我们的官方网站:http://www.jzbxxh.com/谢谢您的到来!

  The exciting content of this article comes from the smoke hood of Ji'nan。 Please click on our official website: http://www。jnqsg。com/, thank you for coming!

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