Butterfly check valves are widely used in water supply pipeline systems. Proper design of new valves requires accurate determination of the water impulse force and moment on the disk for transient flow conditions. The...Butterfly check valves are widely used in water supply pipeline systems. Proper design of new valves requires accurate determination of the water impulse force and moment on the disk for transient flow conditions. The impulse moments were measured using pressure measurement and strain gauge measurements. Correlation was developed relating the impulse moment to the velocity and angle that were used to design a new type of valves.展开更多
A new method for measuring bubble content of two\|phase fluids in complex systems such as air/hydro systems has been designed and verified. Some new results of the study on the factors influencing bubble content using...A new method for measuring bubble content of two\|phase fluids in complex systems such as air/hydro systems has been designed and verified. Some new results of the study on the factors influencing bubble content using this new method are given in this paper, including the results of the experiments in the SKIP\|valve system and long\|tube system. Results indicate that the operating time, opening of the control\|valve, air supply pressure, mass of the load, speed ratio, and the length of the tube all affect bubble content.展开更多
The mechanism of bubble formation in air/hydro systems is investigated. Results presented in this paper include further insight into the mechanism of bubble formation and the measurement of bubble content. The regula...The mechanism of bubble formation in air/hydro systems is investigated. Results presented in this paper include further insight into the mechanism of bubble formation and the measurement of bubble content. The regularity of bubble transport in the system is found, with an idea for a new method for separating gas from oil. The method has been verified experimentally with favorable results.展开更多
文摘Butterfly check valves are widely used in water supply pipeline systems. Proper design of new valves requires accurate determination of the water impulse force and moment on the disk for transient flow conditions. The impulse moments were measured using pressure measurement and strain gauge measurements. Correlation was developed relating the impulse moment to the velocity and angle that were used to design a new type of valves.
文摘A new method for measuring bubble content of two\|phase fluids in complex systems such as air/hydro systems has been designed and verified. Some new results of the study on the factors influencing bubble content using this new method are given in this paper, including the results of the experiments in the SKIP\|valve system and long\|tube system. Results indicate that the operating time, opening of the control\|valve, air supply pressure, mass of the load, speed ratio, and the length of the tube all affect bubble content.
文摘The mechanism of bubble formation in air/hydro systems is investigated. Results presented in this paper include further insight into the mechanism of bubble formation and the measurement of bubble content. The regularity of bubble transport in the system is found, with an idea for a new method for separating gas from oil. The method has been verified experimentally with favorable results.
