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              新聞資訊
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              DCS系統徹底維護項目有哪些?

              2021-10-19 14:04:28 來源:http://www.eboudy.com/ 53

              DCS系統應進行從設計、施工、調試、運行維護進行全過程全 方 位管理。作為系統維護人員要根據系統配置和生產運行特點,制定科學合理的維護策略和方法,加強系統維護,對運行中出現的故障,具體問題具體分析,及時處理,確保DCS系統穩定可靠運行。機組檢修期間應對DCS系統應進行徹 底的維護,維護主要包括:
              DCS system shall carry out all-round management in the whole process from design, construction, commissioning, operation and maintenance. As the system maintenance personnel, they should formulate scientific and reasonable maintenance strategies and methods according to the system configuration and production and operation characteristics, strengthen system maintenance, analyze and deal with the faults and specific problems in time, so as to ensure the stable and reliable operation of DCS system. The DCS system shall be thoroughly maintained during unit maintenance. The maintenance mainly includes:
              (1)利用機組檢修時間逐個復位DCS系統的DPU、CPU和操作員站及數據站;刪除組態中的無效I/O點,對組態進行優化。
              (1) Use the unit maintenance time to reset DPU, CPU, operator station and data station of DCS system one by one; Delete invalid I / O points in the configuration and optimize the configuration.
              (2)系統冗余測試:對冗余電源、服務器、控制器、通訊網絡進行冗余測試。注意系統各設備停電時,主從設備切換、網絡、人機接口站是否正常;系統檢修重新上電后對各設備進行切換測試。
              (2) System redundancy test: conduct redundancy test on redundant power supply, server, controller and communication network. Pay attention to whether the master-slave equipment switching, network and man-machine interface station are normal in case of power failure of each equipment of the system; After system maintenance and power on again, switch and test each equipment.
              (3)系統灰塵清除:系統停運對所有設備進行清掃吹灰,包括主機、控制站機籠、機柜濾網、風扇等部件的灰塵清理。
              (3) System dust removal: after system shutdown, all equipment shall be cleaned and soot blown, including dust removal of host, control station cage, cabinet filter screen, fan and other components.
              (4)接地系統檢修。包括端子檢查、對地電阻測試;系統供電線路檢修,并對UPS進行供電能力測試;注意檢查DPU主機CMOS電池電量,防止CMOS數據丟失。
              (4) Maintenance of grounding system. Including terminal inspection and ground resistance test; Overhaul the system power supply line and test the power supply capacity of UPS; Pay attention to check the CMOS battery power of DPU host to prevent CMOS data loss.
              (5)檢查DCS系統和其他系統的接口,重要信號冗余處理,與其他系統的通信其具體情況采取單向傳輸和加裝防火墻措施。
              (5) Check the interfaces between DCS system and other systems, important signal redundancy processing and communication with other systems, and take one-way transmission and firewall measures according to the specific conditions.
              (6)系統上電:系統大修后維護負責人確認條件具備,嚴格遵照上電步驟進行。
              (6) System power on: after system overhaul, the person in charge of maintenance confirms that the conditions are met and strictly follows the power on steps.
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