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AF泡沫泵葉輪吸人口的外圓與泵克內(nèi)壁的接縫處存在一個轉(zhuǎn)動接縫
葉輪吸人口的外圓與泵克內(nèi)壁的接縫處存在一個轉(zhuǎn)動接縫，它正是高低壓交界面，且具有相對運動的部位，很容易發(fā)生泄漏，如圖2-4中12所示。 為了減少泵亮內(nèi)高壓水向吸水口的回流量，一般在泵構(gòu)造上采用兩種減漏方式: ①減小接縫間歌(不超過0.1- 0.5m)；②增加泄漏通道中的阻力等。在實際應(yīng)用中，由于加工、安裝以及軸向力等問題，在接縫間歌處很容易發(fā)生葉輪與泵克間的磨機現(xiàn)象。為了延長葉輪和泵光的使用壽命，通常在泵光上鋼做。一個金屬的口環(huán)現(xiàn)可環(huán)的接維間可以做成齒型。以增加水流回流時的肌力。提高減麗妝樂、國此，一般稱此口環(huán)為減漏環(huán)，如圖2-11所示，為三種不同形式的減漏環(huán)。
There is a rotation joint at the joint between the outer circle of AF foam pump impeller suction and the inner wall of the pump
There is a rotating joint between the outer circle of the impeller suction and the inner wall of the pump block, which is the interface between high and low pressure, and has a relatively moving part that is prone to leakage, as shown in Figure 2-4, Figure 12. In order to reduce the return flow of high-pressure water to the suction port inside the pump, two leakage reduction methods are generally adopted in the pump structure: ① reducing the leakage between joints (not exceeding 0.1-0.5m); ② Increase resistance in the leakage channel, etc. In practical applications, due to issues such as processing, installation, and axial force, it is easy to experience grinding between the impeller and pump at the joints. In order to extend the service life of the impeller and pump light, steel is usually applied to the pump light. A metal mouth ring can now be formed into a tooth shape between the ring joints. To increase muscle strength when water flows back. To enhance the beauty reduction of makeup, Le, and Guo, this mouth ring is commonly referred to as a leak reducing ring, as shown in Figure 2-11, which consists of three different forms of leak reducing rings.
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