In recent years, there has arisen the problem of water hammering caused by sudden valve closure occurring in household water supply pipes because of (l)the wide spread of fast-operating valves such as automatic switch valves and (Z)the incrase of feed water pressure due to both the need to...
CORROSION CONTROL FOR POTABLE WATER DISTRIBUTOR SYSTEM The process comprises adding to the water a source of water soluble carbonate in an amt. necessary to assure the passivation of the pipes comprising lead contg. elements. The pH of the water is maintained at 7.5-9. Pref. the carbonate co...
Mines, Bridges, Roads, Water Pipes Weight About 21.5kg Impact frequency ≤21.6hz Air comsumption ≤23L/s Packaging and delivery Packaging Details High air pressure small electric blasting rock drill machine for mining core Packing Details: Packed in one carton,simple package Port Ningbo port Sup...
Numerical analysis of direct contact condensation-induced water hammering effect using OpenFOAM in realistic steam pipes The CFD solver with the phase change model was validated using a one-dimensional Stefan problem's benchmark case. In a PMK-2 steam pipe, the ... TQD Pham,S Choi - 《Intern...
PURPOSE: To provide a water hammering preventing device for a hot water feeder in which no water hammering phenomenon may be produced within each of pipes of the hot water feeder when a hot water feeding is started or stopped.HIDAKA KATSUHIRO樋高 勝広KITA HIROSHI喜多 洋YAMAMOTO YUZO山本 裕三...
Apparatus for preventing pounding or water-hammering in circulating-pipes of heatingJohn L. Creveling
Direct contact condensation (DCC)-induced water hammer in a horizontal pipe is an important phenomenon observed in many industrial fields such as nuclear and thermal engineering. This study aims to simulate the DCC-induced water hammering effect in previously designed steam pipes. The numerical ...
In a file hammering method using water jet system for jetting high-pressure water through a plurality of high-pressure water jetting pipes when hammering the file, the method comprises the steps of: installing a lubricant jetting pipe to provide lubricant to the file; inserting the file to an ...
The steel pipes with unequal thickness are punched into earth in different angles. The device has the advantages that the device is light and handy, the height of construction can be changed, and the device can enter a narrow place, climb a hill and operate underwater, and the construction...
water level changes sensed by level sensors or multiple contact point energy to a controller, recognize the water shock presence in accordance with reference and setting values input through the controller, and reduce the water shock to the main pipes by controlling the air compression and expansion...