螺桿鼓風(fēng)機與磁懸浮鼓風(fēng)機相比優(yōu)勢在哪里

螺桿鼓風(fēng)機與磁懸浮鼓風(fēng)機都是目前市場上技術(shù)較為先進的風(fēng)機種類，各有優(yōu)勢。作為螺桿鼓風(fēng)機生產(chǎn)廠家，清越節(jié)能自然要說說在一些應(yīng)用有交集的領(lǐng)域，螺桿鼓風(fēng)機對比磁懸浮鼓風(fēng)機的優(yōu)勢到底在哪里。

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.

中小風(fēng)量應(yīng)用是螺桿鼓風(fēng)機與磁懸浮鼓風(fēng)機會發(fā)生交集競爭的主要領(lǐng)域，節(jié)能、低噪都是兩類產(chǎn)品的重要賣點之一。單說螺桿鼓風(fēng)機的優(yōu)勢，要先從它們的最基本原理說起。

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.

螺桿鼓風(fēng)機作為一種容積式鼓風(fēng)機，依靠雙螺桿轉(zhuǎn)子及與泵腔形成的若干相對獨立的腔體；隨旋轉(zhuǎn)過程，腔體之間從大到小形成連續(xù)的周期性容積變化過程，容積最小時排出完成氣體的輸送。過程中具有內(nèi)壓縮、強制送風(fēng)的特點，負(fù)荷范圍內(nèi)，根據(jù)背壓可以自適應(yīng)調(diào)節(jié)排氣壓力，壓力的變化對流量可以說不會產(chǎn)生影響，通過轉(zhuǎn)速調(diào)節(jié)風(fēng)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.

磁懸浮鼓風(fēng)機是離心式鼓風(fēng)機家族中的一員，利用每分鐘數(shù)萬轉(zhuǎn)的高速旋轉(zhuǎn)的葉片賦予被輸送氣體動能，并在出口處轉(zhuǎn)化為壓力能。與螺桿鼓風(fēng)機比較，它無法擺脫離心風(fēng)機的一個通病，就是喘振，也可以理解為它必定存在一個工作不穩(wěn)定的低效率區(qū)域，因此選擇離心風(fēng)機就需要避開對應(yīng)的工況區(qū)域。與此同時工況壓力的變化，對磁懸浮鼓風(fēng)機或者說對離心風(fēng)機來說，會使出口風(fēng)量會產(chǎn)生明顯的變化。明確點說就是會磁懸浮鼓風(fēng)機的流量會隨著出口阻力的增大而明顯減少。

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.

兩相對比之下，螺桿鼓風(fēng)機首先沒有磁懸浮鼓風(fēng)機的喘振風(fēng)險，因此沒有不利的工況區(qū)域，因此它的整體性能是平穩(wěn)的，對終端壓力的變化也有著極強的適應(yīng)能力。而磁懸浮鼓風(fēng)機在理想狀態(tài)下，它的能耗、噪音指標(biāo)良好。但實際中，很多工況往往會因各種原因發(fā)生變化，如終端負(fù)荷變動、氣候溫度變化等等都可能引起壓力波動，導(dǎo)致工況偏離設(shè)計。而一旦偏離設(shè)定的工況，磁懸浮鼓風(fēng)機的性能指標(biāo)也會發(fā)生變化，嚴(yán)重時會陷入惡性循環(huán)。總結(jié)起來其實就是磁懸浮鼓風(fēng)機需要較為理想且穩(wěn)定的工況，一旦理想工況發(fā)生變化會使磁懸浮鼓風(fēng)機的性能打折扣，而螺桿鼓風(fēng)機對于變化的工況性能上能保持穩(wěn)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.

另外在環(huán)境的適應(yīng)性上，磁懸浮鼓風(fēng)機因為處于每分鐘數(shù)萬轉(zhuǎn)的高速旋轉(zhuǎn)條件下，而風(fēng)機葉片相對脆弱，因此對于粉塵、濕度等環(huán)境要求很高，一旦超標(biāo)，很容易導(dǎo)致核心部件損毀，或者因為粘附灰塵導(dǎo)致動平衡失衡。而螺桿鼓風(fēng)機在結(jié)構(gòu)上更為簡單穩(wěn)定，在含塵含濕較高的惡劣環(huán)境中，容錯性更高，相對于這類企業(yè)使用，更為可靠。

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.

以上這些就是螺桿鼓風(fēng)機相較于磁懸浮鼓風(fēng)機所具備的一些性能特性上的優(yōu)勢。當(dāng)然，這些優(yōu)勢是在一些具體環(huán)境下的。條件具備的前提下，磁懸浮鼓風(fēng)機的良好的效率表現(xiàn)毋庸置疑。兩者對于一些傳統(tǒng)的鼓風(fēng)機來說，都是科技進步的產(chǎn)物，都在為當(dāng)前倡導(dǎo)的節(jié)能減排貢獻力量。哪樣產(chǎn)品，對于用戶來說都需要結(jié)合工況實際選擇，因地制宜，實現(xiàn)高性價比使用，少投入多產(chǎn)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.

相關(guān)標(biāo)簽：山東螺桿鼓風(fēng)機