tailieunhanh - Handbook of Water and Wastewater Treatment Plant Operations - Chapter 5

Thủy lực sự lựa chọn là dầu. Một số ví dụ phổ biến của các hệ thống điện thủy lực chất lỏng bao gồm hệ thống lái ô tô phanh, điện, thang máy thủy lực, và giắc cắm hoặc thang máy thủy lực. Có lẽ quen thuộc nhất của hệ thống chất lỏng thủy lực sức mạnh trong nước và các hoạt động xử lý nước thải được sử dụng trên xe tải đổ, các bộ tải front-end, học sinh lớp, và trái đất chuyển động và thiết bị khai quật. Trong bản văn này, chúng tôi có liên quan với. | 5 Water Hydraulics Beginning students of water hydraulics and its principles often come to the subject matter with certain misgivings. For example water wastewater operators quickly learn on the job that their primary operational maintenance concerns involves a daily routine of monitoring sampling laboratory testing operation and process maintenance. How does water hydraulics relate to daily operations The hydraulic functions of the treatment process have already been designed into the plant. Why learn water hydraulics at all Simply put while having hydraulic control of the plant is obviously essential to the treatment process maintaining and ensuring continued hydraulic control is also essential. No water wastewater facility and or distribution collection system can operate without proper hydraulic control. The operator must know what hydraulic control is and what it entails to know how to ensure proper hydraulic control. Moreover in order to understand the basics of piping and pumping systems water wastewater maintenance operators must have a fundamental knowledge of basic water Note The practice and study of water hydraulics is not new. Even in medieval times water hydraulics was not new. Medieval Europe had inherited a highly developed range of Roman hydraulic components. 2 The basic conveyance technology based on low-pressure systems of pipe and channels was already established. In studying modern water hydraulics it is important to remember that the science of water hydraulics is the direct result of two immediate and enduring problems The acquisition of fresh water and access to continuous strip of land with a suitable gradient between the source and the destination. 3 WHAT IS WATER HYDRAULICS The word hydraulic is derived from the Greek words hydro meaning water and aulis meaning pipe . Originally the term hydraulics referred only to the study of water at rest and in motion flow of water in pipes or channels . Today it is taken to mean the