外部环境因素造成DCS故障的数量相比于系统本身问题以及人为因素造成的故障这两类而言相对较少，但在实际生产过程中也时有发生。下面
浙大中控DCS卡件厂家为您分析几点：
The number of DCS failures caused by external environmental factors is relatively small compared to the system itself and the failures caused by human factors, but they also occur occasionally in the actual production process. The following are some points analyzed by the DCS card manufacturer of Zhejiang University:
(1)某电厂电子设备间风道口正处于DPU机柜上方，由于设计和其他原因，机组运行中消防水通过风道流入DCS机柜，导致DPU、服务器等设备进水烧损，机组停运。
(1) The air duct opening in the electronic equipment room of a power plant is located above the DPU cabinet. Due to design and other reasons, fire water flows into the DCS cabinet through the air duct during unit operation, resulting in water ingress and burning of equipment such as the DPU and server, and unit shutdown.
(2)某电厂循环水泵房远程IO柜，由于底部封堵不严，造成冬季老鼠窜入，在机柜上部温度较高处构筑巢穴，终造成远程IO脱双网。
(2) The remote IO cabinet in the circulating water pump room of a power plant was not tightly sealed at the bottom, causing mice to enter in winter, building a nest at a relatively high temperature above the cabinet, ultimately causing the remote IO to be disconnected from the dual network.
(3)某电厂电子设备间的封闭性较差，卡件、DPU积灰较为严重，曾多次出现故障。在采取完善电子间封闭、加装空调等措施后卡件、DPU等故障基本杜绝。
(3) The sealing of the electronic equipment room in a power plant is poor, and the dust accumulation in the card and DPU is relatively serious. There have been many failures. After taking measures such as improving the sealing of electronic rooms and installing air conditioners, the failures of cards and DPUs were basically eliminated.
DCS应进行从设计、施工、调试、运行进行全过程全方位管理，作为系统维护人员应根据系统配置和生产设备控制情况，制定科学、合理、可行的维护策略和方式方法，做到预防性维护、日常维护紧密配合，进行系统的、有计划的、定期的维护，对运行中出现的各种故障，应具体问题具体分析。减少DCS的故障关键是要做到预防为先，保证系统在要求的环境下长期良好地运行。
DCS should carry out comprehensive management throughout the entire process from design, construction, commissioning, and operation. As a system maintenance personnel, they should develop scientific, reasonable, and feasible maintenance strategies and methods based on system configuration and production equipment control, achieve close coordination between preventive maintenance and daily maintenance, conduct systematic, planned, and regular maintenance, and analyze various failures in operation on a specific basis. The key to reducing DCS failures is to put prevention first and ensure long-term good operation of the system in the required environment.
当出现较大规模的硬件故障、原因不明故障或超出本厂维护人员技术水平的故障时，除当时采取紧急备件更换工作外，要及时和厂家取得联系，由厂家专业技术支持工程师进一步确认和排除故障。
In the event of a large-scale hardware failure, unexplained failure, or failure that exceeds the technical level of our maintenance personnel, in addition to taking emergency spare parts replacement work at that time, it is necessary to promptly contact the manufacturer, and the manufacturer's professional technical support engineer should further confirm and eliminate the failure.
It is not difficult to see that in order to reduce the probability of failure of the DCS system, it is necessary to do a comprehensive job in the decentralized control system, from model selection and design to operation and maintenance. For more relevant content, please visit our website http://www.sdjkyqyb.com Consult!
