加壓馬達過熱問題 - 居家修繕
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By Anonymous
at 2022-07-02T00:27
at 2022-07-02T00:27
Table of Contents
開水龍頭時加壓馬達不斷走走停停,
可以推斷是壓力桶氣壓不足或內膜破裂了。
先說解法,
找到壓力桶氣嘴戳戳看氣嘴芯,
看會不會噴水,
如果會噴水就要換壓力桶或整台換掉,
不噴水的話拿打氣筒檢查氣壓,
1/4hp通常打15~18PSI
再來說原理:
借一張網路的壓力桶構造圖
https://i.imgur.com/JvZ6aFY.jpg
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泵浦、壓力桶、壓力開關,
這三個零件是互相連通的,
馬達帶動泵浦運轉時,
水也會進入壓力桶內部(內膜下方),
而內膜上方則是空氣,
要打入適當的氣壓
當我們把水龍頭打開時,
這時水管中的壓力釋放,
假設這時壓力桶內空氣壓力為P1;
而馬達開始運轉對水管內加壓,
也會對壓力桶加壓,
內膜就慢慢往上壓縮空氣,
一直到水壓足夠停止,
這時壓力桶內氣壓為P2,
(P2也是壓力開關設定的壓力)
這個設計就是藉由內膜的彈性去壓縮空氣,
P1升到P2的這段時間能形成緩衝,
來讓加壓馬達不會走走停停
而當內膜破掉時,
會變成整顆壓力桶都是水,
打開水龍頭時釋放水壓,
馬達才剛開始轉,
因為壓力桶內已經沒有空氣能壓縮,
馬上就到達P2,
所以就會走走停停。
如果是傳統式的加壓馬達內膜破裂的話,
因為桶身是比較軟的材質
還能看到因為馬達走走停停桶身一直膨脹縮小
--
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居家修繕
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