2013年11月1日星期五

On the check valve in the heating system to study the role of water hammer

In large-scale central heating system, water hammer event of an accident , destruction and strong , serious consequences , it must take active preventive measures to minimize and prevent water hammer phenomenon. Heating system piping valve is a very important component in the check valve is installed, structural parameters and closed  Male connector  system security and reliability has a great influence . If the check valve used properly , can play the role of water hammer protection ; However, if used improperly, not only can not play a protective effect on the heating  Instrumentation ball valve  piping in the heating system caused large fluctuations . So the check valve in the heating system to study the role of water hammer has a very important practical significance and academic significance. Transient fluid  Instrument needle valves  the perspective of the requirements for the non-return valve in the power interruption can only turn on or off , but should be based on the liquidity situation in the heating pipes on the speed of the hoist has certain requirements . Improper opening and closing speed will cause the system to a sudden increase in pressure in the pipeline or fall , when the pressure on the appreciation of the tube is large enough can cause rupture . To ensure system security, must be a reasonable choice and close the check valve structure curve , it has played the role of water hammer .

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