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渣漿泵可動(dòng)葉片調(diào)節(jié)流量揚(yáng)程
當(dāng)改變?nèi)~片安放角時(shí)，泵的性能將隨之改變，所以將葉片制作成可轉(zhuǎn)動(dòng)可改變?nèi)~片安裝角就可改變泵的性能，從而達(dá)到調(diào)節(jié)的目的。這種方法只能用于軸流泵和混流泵中，尤其是軸流泵中用的較多。改變?nèi)~片安放角的方法，常有兩種情況，一是固定的調(diào)節(jié)， 二是運(yùn)行中可隨時(shí)調(diào)節(jié)。固定調(diào)節(jié)是根據(jù)需要的性能確定其葉片安裝角，用螺釘擰緊固定，另一種是通過(guò)機(jī)械方法或液壓方法，泵在運(yùn)行中，隨時(shí)都可以轉(zhuǎn)動(dòng)葉片改變?nèi)~片安放角進(jìn)行調(diào)節(jié)，但其結(jié)構(gòu)復(fù)雜，所以常只用于大型泵中。
六、減少葉輪數(shù)目調(diào)節(jié)
在多級(jí)泵中，減少葉輪數(shù)目來(lái)降低泵的揚(yáng)程，從而達(dá)到調(diào)節(jié)的目的，所以只能用在多級(jí)泵中，調(diào)節(jié)時(shí)，取下1個(gè)或2個(gè)葉輪和相應(yīng)的導(dǎo)葉，用一個(gè)長(zhǎng)度相當(dāng)?shù)妮S套來(lái)代替所取下葉輪位置。用這種方法調(diào)節(jié)時(shí)，流量不變，只改變了揚(yáng)程，減少 一個(gè)葉輪就減少一級(jí)揚(yáng)程，這種方法會(huì)增加一定的阻力損失，所以取下的葉輪不宜太多，并且應(yīng)取下最后面的葉輪，否則會(huì)造成泵的汽蝕。渣漿泵廠家
Adjustable blade flow head of slurry pump
When the blade angle is changed, the performance of the pump will be changed accordingly, so the performance of the pump can be changed by making the blade into a rotatable and changeable blade angle, so as to achieve the purpose of adjustment. This method can only be used in axial flow pump and mixed flow pump, especially in axial flow pump. There are two ways to change the setting angle of blade, one is fixed adjustment, the other is adjustable at any time during operation. Fixed adjustment is to determine the installation angle of the blade according to the required performance, and tighten it with screws. The other is to adjust the installation angle of the blade by turning the blade at any time during the operation of the pump through mechanical or hydraulic methods, but its structure is complex, so it is often only used in large pumps.
Vi. reduction of impeller number adjustment
In multistage pump, reduce the number of impellers to reduce the pump head, so as to achieve the purpose of adjustment, so it can only be used in multistage pump. When adjusting, remove one or two impellers and corresponding guide vanes, and replace the position of the removed impeller with a shaft sleeve of the same length. When this method is used for adjustment, the flow will not change, only the head will be changed, and the first stage head will be reduced if one impeller is reduced. This method will increase certain resistance loss, so it is not suitable to remove too many impellers, and the last impeller should be removed, otherwise it will cause cavitation of the pump. Slurry pump manufacturer
