为什么山东清越螺杆鼓风机的机头更大些？

前不久，螺杆风机厂家清越的一家客户在安装调试螺杆鼓风机的过程中，发现同样功率的螺杆鼓风机，清越的设备机头比另一的却要大上很多，因此就引出了标题中的疑问，这是为何呢？

Not long ago, a customer of Qingyue, a screw blower manufacturer, found that the head of Qingyue's screw blower with the same power was much larger than that of another brand in the process of installing and debugging the screw blower. Therefore, the question in the title was raised. Why?

螺杆风机厂家简单来解释一下。我们知道螺杆鼓风机等容积式鼓风机种类较多，不管具体的哪种类型，它们都是通过工作腔容积的周期性变化而实现空气输送的。在设备选择中，风量是其中基本的参数之一。那不同的机型，一定压力下不同风量的大小是如何实现的呢？

Screw fan manufacturers to explain briefly. We know that there are many types of positive displacement blowers, such as screw blower. No matter which type is specific, they all realize air delivery through the periodic change of working chamber volume. In equipment selection, air volume is one of the basic parameters. How to achieve different air volume under certain pressure for different models?以螺杆风机厂家的螺杆鼓风机产品为例，风量基础的影响因素就是转子与转子以及腔体围合形成工作腔体容积与转速。这个工作腔体容积决定了鼓风机转子一个周期传输的气体量有多少。转速就更容易理解了，决定了单位时间内转子能完成多少个周期性变化。因此不考虑泄漏等影响因素，工作腔容积增加以及转速的提高都能有用提高设备风量。Taking the screw blower products of screw blower manufacturers as an example, the influencing factors of air volume basis are the volume and speed of working cavity formed by rotor and rotor and cavity enclosure. The volume of the working cavity determines how much gas the blower rotor transmits in one cycle. The speed is easier to understand, which determines how many periodic changes the rotor can complete in unit time. Therefore, regardless of the influence factors such as leakage, the increase of working chamber volume and rotating speed can effectively improve the air volume of the equipment.

实际应用中，螺杆鼓风机工作腔的容积一方面与型线有关，另一方面与转子与腔体的几何大小有关。型线以及转速一定的前提下，要提高风量就需要增加转子与腔体的体积，这其中就涉及设备体积与各方面成本的增加。而通过转速来增加风量更为便捷，但涉及到轴承的承受能力、密封等问题。转速越高轴承磨损越严重、密封更容易泄漏，需要妥善应对。

In practical application, the volume of the working cavity of screw blower is related to the profile on the one hand, and the geometric size of rotor and cavity on the other. Under the premise of a certain profile and speed, to improve the air volume, it is necessary to increase the volume of rotor and cavity, which involves the increase of equipment volume and various costs. It is more convenient to increase air volume by rotating speed, but it involves bearing capacity, sealing and other issues. The higher the rotating speed is, the more serious the bearing wear is, and the seal is more likely to leak, which needs to be dealt with properly.

另外就是通过高速转动来增大风量还会使鼓风机出口的空气流速加大，带来额外的噪音问题以及压损，以及高转速离心力带来动平衡、磨损等问题，维护需要更为细致。

In addition, increasing the air volume through high-speed rotation will also increase the air flow rate at the outlet of the blower, resulting in additional noise problems and pressure loss, as well as dynamic balance, wear and other problems caused by high-speed centrifugal force, so the maintenance needs to be more meticulous.

在这个方面采取的就是大机头、低转速的路线，以保证稳定的产品性能。不同的企业选择的方向也会不同。落实到具体产品上，差不多的风量，山东螺杆鼓风机相对于一些小机头、高转速的产品，螺杆主机在体积上自然就会大出很多，但转速也会相应较低。

In this respect, we adopt the route of large nose and low speed to ensure stable product performance. Different enterprises will choose different directions. When it comes to specific products, with almost the same air volume, compared with some products with small head and high speed, the screw host will naturally be much larger in volume, but the speed will also be relatively low.