Zhuzhou South Valve: Records of the site of the water conference and the main points of [water hammer protection of urban and rural water supply projects]

author:Jifully 时间:2020-05-18 03:03:03

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览


 On the morning of November 26, 2019, the 14th China Urban Water Development International Symposium and New Technology Equipment Expo was grandly opened in Oriental Water City-Suzhou.


株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览


        Zhuzhou South Valve Co., Ltd. (hereinafter referred to as "South Valve") was invited to attend this event, showing the latest products and technical achievements, and brought a wonderful special report on "Water Hammer and Tube Explosion Protection for Urban and Rural Water Supply Projects".


株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览



       

1. Water hammer is the main cause of leakage and tube explosion.


         IWA (International Water Association) put forward in 2010: Water hammer is the main cause of aging and damage to the water supply network, and eventually burst. Water hammer always starts from the weakest point of the pipeline first, and the transient pressure control can greatly reduce or even eliminate the problem of tube explosion and leakage.

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览

        

2. The randomness of the hydraulic conditions of the water supply network requires adaptive protection of the water hammer.


         The heavy use of secondary water supply equipment, during peak hours of water use, the regional pipeline network where the secondary water supply equipment is used intensively fluctuates greatly. The action of the float valve and the start and stop of the secondary water supply equipment have all caused an impact on the pressure of the municipal water supply pipe network, leading to accidents such as leakage and pipe explosion in the pipe network.

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览

 

3. The steady state hydraulic model needs to be checked online.


     Due to possible deviations in the working condition parameters and the boundary conditions of various hydraulic components during hydraulic modeling, it is necessary to compare and verify with the actual running test data and correct the deviations in order to optimize the scheduling control strategy, perform pipe explosion and leakage Damage location analysis to guide production operations.

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览

  

4. In order to ensure the safety of the water supply system, a complete pump shutdown experiment should be carried out upon completion of commissioning.


     Due to the uncertainties assumed in the modeling process, deviations in pipeline construction and design, lack of on-site commissioning tests, and accuracy of data, it is necessary to conduct a full pump shutdown experiment at the stage of project completion and commissioning. The water hammer pressure wave performs real-time high-frequency data collection and analysis to determine how to deal with engineering defects that may pose a risk to pipeline safety.

株洲南方阀门:水大会现场纪实及【城乡供水工程的水锤防护】要点速览