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DMA分區管理

  • DMA分區管理的目的

  • DMA的區域劃分及分類

  • DMA采取具體的技術方法

  • DMA分區的行動步驟

DMA分區管理是指在供水系統中建一個個被切割分離的獨立區域,通常采取關閉閥門或安裝流量儀表來形成虛擬或實際獨立區域。通過對進入或流出這一區域的水量進行計量,并對流量進行分析后來定量水的泄漏,便于檢漏人員準確的決定在何時何處檢漏,并進行主動的防泄漏控制。

DMA分區管理作為供水管網管理系統的運行的一部分,可使管網配水系統有計劃地運作,并加強人力的管理,通過這種行之有效的做法來減少供水中的產銷差。總之, DMA分區管理有助于確保供水企業達成降低產銷差的目標,使供水收益最大化。

1. DMA分區管理的目的

優化企業管理,使供水企業各部門的責權清晰,將目標放在最具成本效益的地方。通過DMA分區管理,密切監測配水系統,將管網上測量的數據進行采集分析,并評估管網漏損狀況,為管網管理提供科學依據。

總之,實現DMA分區管理的目標是降低產銷差率,包括合理分配人力、物力在內的各種資源,使供水企業運營趨于科學化、合理化。所以,長期的漏損控制是進行DMA分區管理最主要的目的。具體的目標有下幾點:

(1)為區域內的供水管網改造和計量器具維護更新、供水規劃等提供參考。

(2)積極主動的實施管網檢漏,進而對漏點進行精確定位,便于快速修復漏點,減少水量的損失。

(3)有助于供水管理部門及時發現爆管、漏失等事故問題。

(4)有針對性的進行壓力管控,通過控DMA區域內的水壓,使管網在最優的壓力狀態下運行來降低爆管和水的物理漏失,以提升供水 服務水平

(5)有針對性的進行資產的更新和維修,使更新和維護具有程序化和計劃性。

2. DMA分區管理的投入

DMA計量管理區域的建立需要長期的人員管理。為滿足計量管理區域內的管道流量數據的真實性和準確性,需要增加或更換流量儀表,甚至為為滿足該區域內的管道封閉性,還需要增加或改造閥門等,否則獲得的信息有誤導或無用。因此,DMA分區管理需要一定的資金的投入。所以,對區域劃分的方案需要進行詳細論證,以便節省投資和合理分區。

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