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螺杆鼓风机与磁悬浮鼓风机相比优势在哪里

来源:https://www.sdqyjn.com/   日期:2020-09-20   浏览量:
TAG:山东制氮机,山东干燥机,山东螺杆鼓风机,山东空压机,山东自动排水器

螺杆鼓风机与磁悬浮鼓风机都是目前市场上技术较为先进的风机种类,各有优势。作为螺杆鼓风机生产厂家,清越节能自然要说说在一些应用有交集的领域,螺杆鼓风机对比磁悬浮鼓风机的优势到底在哪里。

Screw blower and magnetic levitation blower are the most advanced types of fans in the market, each has its own advantages. As a screw blower manufacturer, Qingyue energy conservation naturally needs to talk about the advantages of screw blower compared with magnetic levitation blower in some application overlapping fields.

中小风量应用是螺杆鼓风机与磁悬浮鼓风机会发生交集竞争的主要领域,节能、低噪都是两类产品的重要卖点之一。单说螺杆鼓风机的优势,要先从它们的最基本原理说起。

The application of medium and small air volume is the main field of intersection competition between screw blower and magnetic suspension blower. Energy saving and low noise are two important selling points of the two products. The advantages of screw blowers should start with their basic principles.

螺杆鼓风机作为一种容积式鼓风机,依靠双螺杆转子及与泵腔形成的若干相对独立的腔体;随旋转过程,腔体之间从大到小形成连续的周期性容积变化过程,容积最小时排出完成气体的输送。过程中具有内压缩、强制送风的特点,负荷范围内,根据背压可以自适应调节排气压力,压力的变化对流量可以说不会产生影响,通过转速调节风量。

As a positive displacement blower, screw blower relies on the twin-screw rotor and a number of relatively independent cavities formed with the pump cavity; with the rotation process, the continuous periodic volume change process is formed between the cavities from large to small, and the minimum volume is discharged to complete the gas transportation. The process has the characteristics of internal compression and forced air supply. Within the load range, the exhaust pressure can be adjusted adaptively according to the back pressure. The change of pressure will not affect the flow. The air volume can be adjusted by rotating speed.


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磁悬浮鼓风机是离心式鼓风机家族中的一员,利用每分钟数万转的高速旋转的叶片赋予被输送气体动能,并在出口处转化为压力能。与螺杆鼓风机比较,它无法摆脱离心风机的一个通病,就是喘振,也可以理解为它必定存在一个工作不稳定的低效率区域,因此选择离心风机就需要避开对应的工况区域。与此同时工况压力的变化,对磁悬浮鼓风机或者说对离心风机来说,会使出口风量会产生明显的变化。明确点说就是会磁悬浮鼓风机的流量会随着出口阻力的增大而明显减少。

Magnetic levitation blower is a member of the centrifugal blower family. It uses the high-speed rotating blades of tens of thousands of revolutions per minute to endow the transported gas with kinetic energy, which is converted into pressure energy at the outlet. Compared with screw blower, it can not get rid of a common problem of centrifugal fan, that is, surge. It can also be understood that there must be an unstable low efficiency area, so the selection of centrifugal fan needs to avoid the corresponding working condition area. At the same time, the change of working condition pressure will make the outlet air volume change obviously for the magnetic suspension blower or centrifugal fan. Specifically, the flow of the magnetic levitation blower will decrease with the increase of the outlet resistance.

两相对比之下,螺杆鼓风机首先没有磁悬浮鼓风机的喘振风险,因此没有不利的工况区域,因此它的整体性能是平稳的,对终端压力的变化也有着极强的适应能力。而磁悬浮鼓风机在理想状态下,它的能耗、噪音指标良好。但实际中,很多工况往往会因各种原因发生变化,如终端负荷变动、气候温度变化等等都可能引起压力波动,导致工况偏离设计。而一旦偏离设定的工况,磁悬浮鼓风机的性能指标也会发生变化,严重时会陷入恶性循环。总结起来其实就是磁悬浮鼓风机需要较为理想且稳定的工况,一旦理想工况发生变化会使磁悬浮鼓风机的性能打折扣,而螺杆鼓风机对于变化的工况性能上能保持稳定。

In contrast, the screw blower has no surge risk of Maglev blower at first, so there is no unfavorable working condition area. Therefore, its overall performance is stable and has strong adaptability to the change of terminal pressure. Under ideal condition, the magnetic levitation blower has good energy consumption and noise index. But in practice, many working conditions often change due to various reasons, such as terminal load changes, climate and temperature changes, etc., which may cause pressure fluctuations, leading to working conditions deviating from the design. Once it deviates from the set working condition, the performance index of magnetic levitation blower will change, and even fall into a vicious circle. In fact, the magnetic levitation blower needs ideal and stable working conditions. Once the ideal working conditions change, the performance of the magnetic levitation blower will be reduced, while the screw blower can maintain stable performance under the changing working conditions.

另外在环境的适应性上,磁悬浮鼓风机因为处于每分钟数万转的高速旋转条件下,而风机叶片相对脆弱,因此对于粉尘、湿度等环境要求很高,一旦超标,很容易导致核心部件损毁,或者因为粘附灰尘导致动平衡失衡。而螺杆鼓风机在结构上更为简单稳定,在含尘含湿较高的恶劣环境中,容错性更高,相对于这类企业使用,更为可靠。

In addition, in terms of environmental adaptability, the magnetic suspension blower is in the high-speed rotation condition of tens of thousands of revolutions per minute, and the fan blade is relatively fragile, so the requirements for dust, humidity and other environment are very high. Once it exceeds the standard, it is easy to cause damage to the core components, or the dynamic balance imbalance is caused by adhering dust. The screw blower is more simple and stable in structure. In the harsh environment with high dust and humidity, the screw blower has higher fault tolerance and is more reliable than this kind of enterprise.

以上这些就是螺杆鼓风机相较于磁悬浮鼓风机所具备的一些性能特性上的优势。当然,这些优势是在一些具体环境下的。条件具备的前提下,磁悬浮鼓风机的良好的效率表现毋庸置疑。两者对于一些传统的鼓风机来说,都是科技进步的产物,都在为当前倡导的节能减排贡献力量。哪样产品,对于用户来说都需要结合工况实际选择,因地制宜,实现高性价比使用,少投入多产出。

These are the screw blower compared with the magnetic levitation blower has some performance characteristics of the advantages. Of course, these advantages are in some specific circumstances. Under the premise of conditions, the magnetic suspension blower has a good efficiency performance. For some traditional blowers, both are the products of scientific and technological progress, and both contribute to the current energy conservation and emission reduction. For users, all products need to be selected according to the actual working conditions, so as to achieve high cost-effective use, less input and more output.

相关标签:山东螺杆鼓风机

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