冷水遠(yuǎn)傳壓力表7和熱水遠(yuǎn)傳壓力表,分別檢測(cè)自來水端和燃?xì)忮仩t熱水端的水壓,并把檢測(cè)到的信號(hào)轉(zhuǎn)變成電信號(hào)送到控制器,在控制器內(nèi)通過比較這兩路信號(hào)高低,產(chǎn)生一個(gè)壓差信號(hào)輸出到變頻器,變頻器控制增壓泵的運(yùn)行速度,使熱水壓力隨時(shí)跟蹤自來水壓力,使兩者一直保持平衡。另外,當(dāng)房間的熱水長時(shí)間不用時(shí),管道內(nèi)的水溫必然降低,為此在熱水系統(tǒng)中加裝了一個(gè)循環(huán)泵,使熱水一直保持循環(huán)狀態(tài),這樣無論何時(shí)都可以實(shí)現(xiàn)恒溫供熱水
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