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 .

The role of the check valve in the system

The role of non-return valve in the pipeline is to prevent backflow of liquid, it is in high-rise buildings and boiler piping systems, pumping stations has been widely applied. From the valve's internal structure, can be divided into lift check valves and  Instrument needle valves  valves are two, lift check valve is divided into horizontal and vertical, respectively, for horizontal lines and vertical tube on the road, while the swing check valve applies both for vertical and horizontal pipe lines. Swing check valve Swing check valve back on pills Schematic structure and  Male connector  check valves. Check valve for pump pressure water pipe or pressure piping systems large fluctuation when, can prevent backflow of liquid, protective equipment or the normal operation of the pump unit. Check valve in this system is the role of: fill the water tank can be added through the check valve to the expansion tank, expansion tank while preventing the backflow of water covering the tank, the use of check valves should pay attention to the following questions.