大廈供水設備系統 -- bgp22003

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Subject:

大廈供水設備系統

Author:
里察木

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Date Posted: 22:01:08 12/31/02 Tue
In reply to: 里察木 's message, "一般大廈的保養及維修" on 21:58:46 12/31/02 Tue

大廈供水設備系統, 主要是解決飲食用水、衛生用水、空調用水、消防用水、工業用水等等。所有大廈供水設備的維修保養, 直接影響到生活和生產兩個方面, 管理處人員絕不能忽略, 而必須加以重視。

低層大廈的用水, 一般是由水務局的濾水廠過濾和加氯殺菌後由輸水管直接送到用戶。

高層大廈的用水, 由於自來水的壓力不夠, 在流水入大廈地下儲水箱後, 用水泵輸送至高層水箱, 經落水喉再分別流經各分層水錶到用戶。大廈一般需要兩種水源, 一種是用來食用的自來水, 另外一種是用來沖廁所的井水或海水。這兩種水源的水管系統基本上一樣, 所不同的是用的水管材料不一樣, 自來水管一般用無內搪層鍍鋅鋼管(俗稱鉛水管), 井水或海水則用PVC塑膠管。

現時一般大廈經常發生的問題是食水變黃, 而食水變黃並非是新近才出現的問題, 其起因基本上是樓宇內食水管經長時間使用, 管內的內表層遭受?蝕, 以致大量的微細鐵粒懸浮水中。每當食水在水管內停留不動一段時間, 或當早上初次從水龍頭取水時, 食水變黃的問題尤其顯著。在正常情況下, 只須開動水龍頭片刻, 食水便會回復清澈。

經水龍頭流出的食水如呈現微黃色, 雖然不利於外觀, 但據水務局表示對人體健康應屬無害。故此, 大廈欲解決此問題首先應定期清洗水缸清潔, 減低水黃程度。但是, 最少亦每年兩次, 以保持水缸清潔, 減低水黃程度。但是, 若食水變色的現象持續及情況嚴重, 用戶應聘請持牌水喉匠檢查其單位及大廈水管, 並在有需要時把銹蝕的水管更換。這樣應可解決水黃問題。

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