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C．吸入高度超出允許值。 Snction heght is higher than allowable． |
C．減低幾何吸入高度。 Lower the suction height stepwase |
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d．泵的旋轉(zhuǎn)方向不對。 Direction of revolution
for pump is quite take opposite |
d．檢查旋方轉(zhuǎn)向是否和泵的箭頭一致。 Check tor the diiection
of revolution if it is accordance with the arrow of pump rotation |
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(2) |
泵的流重不足 Water flow of pump
is under normal. |
a．吸入和壓出管系上的閘閥開啟不夠。 Gate valves on the stion
and discharge pipe are not widely opened- |
a．繼續(xù)逐漸打開各閘閥。 Open the gate
valves stepwise one by one |
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b．旋渦工作輪和隔扳之間端面間隙過大。 plays of end-snrface
between swirl wheel and diphragn Plate
become excessive |
b．須減少隔扳間的調(diào)整墊片 Decrease the
adjustable packing sheetc betweentg
diaphragm plates． |
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C．泵轉(zhuǎn)數(shù)不到額定數(shù)值。 Revolut ion perminute
is under rated value |
e．提高泵轉(zhuǎn)數(shù)達(dá)到額定數(shù)值。 Raise the revolut
iou of pump to atttain to rated value． |
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(3)
|
消耗功率過大 power eonstlne is
too high． |
a．泵的壓頭太高。 Water pead for pump
is too high． |
a．應(yīng)減低壓出壓力，繼續(xù)開啟壓出閘閥。 Lower the
discharging pressure and open the pressing-discharge gate valve contiunously． |
|
b．兩隔扳過于壓緊旋渦工作輪。 The compression pression
betweeion．two diaphragmplates is
too high，resultng in clipping swirl wheel． |
b．兩隔扳間再加入墊片，調(diào)整間隙。 Add some pack ing sheets between two diaphregm plates and readjust
the plays． |