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離心泵汽蝕問題的解決 |
①改進泵入口的結構參數
① to improve the structural parameters of Pump Inlet
這一方案適于在離心泵的設計制造階段，該方法在生產現場很少采用。
This program suited for centrifugal pump design and manufacture phase, the method rarely used in the production of the site.
②在泵的吸入口加裝誘導輪
② In the pump suction-induced wheel retrofit
加裝誘導輪，對提高離心泵的抗汽蝕性能，解決汽蝕問題，效果很顯著。而且其結構簡單易于制造安裝，運行維修方便，造價低，在不影響生產的前提下即可進行安裝調試，特別適于在生產現場推廣應用。
Installation of inducer, enhancing the anti-cavitation performance of centrifugal pumps to solve the problem cavitation, the effect is very significant. That its structure is simple and easy to manufacture and installation, operation maintenance of convenient, low cost, without affecting the production can be carried out under the premise of installation, particularly suitable for use in the production of on-site promotion.
③合理設計吸入管路及調整安裝高度
③ rational design of suction pipe and adjust the mounting height
該方法雖能徹底消除汽蝕問題，但在生產現場卻很少采用。這是因為調整泵的吸入管路及安裝高度，工程量大、施工費用高，并且受施工環境的制約，只有在裝置停車或大檢修時才能進行；同時，由于工藝條件的限制，調整泵的吸入管路及安裝高度又將影響后續工藝，具有連鎖反應。
Although this method can completely eliminate cavitation problems, but the site is seldom used in the production. This is because the adjustment of the pump suction pipe and installation height, work volume, high cost of construction, and by the construction of environmental constraints, and only in the device when the parking or large maintenance be carried out; the same time, due to process conditions, the adjustment of the pump suction pipe and install a high degree of turn affect the follow-up process, with a knock-on effect.
④優化工藝操作條件
④ optimum process operating conditions
在工藝條件允許的情況下，改變泵的流量、揚程、轉速及介質的操作溫度等操作參數，可以避免汽蝕的發生。但由于工藝條件的限制，優化工藝操作條件具有很大的局限性，大部分情況下效果并不顯著。所以，可將該方法作為解決汽蝕問題的輔助方法。
In the process conditions permit, the change in pump flow, head, speed and medium operating temperature operating parameters, to avoid the occurrence of cavitation. However, process conditions, optimization of process operating conditions have significant limitations, in most cases results were not significant. Therefore, this method could be to solve the cavitation problem supporting facilities.
在不影響正常生產的前提下，解決機泵的汽蝕問題，應首選在其入口加裝誘導輪。
Without affecting the normal production of the premise, the resolution of pump cavitation, it should be first choice at the entrance to the installation of inducer. |
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