Hydropower station complete sets of hydraulic control butterfly pneumatic valve has irreplaceable advantages

hydropower station complete sets of hydraulic control butterfly pneumatic valve, pneumatic valves and water turbine, according to the principle of the transient process of water through the default of the opening and closing procedures, effectively achieve reliable line by elimination, play a role to protect the safety of pipeline system. Installed in the inlet of spiral case, to provide reliable safety when the machine stop working conditions; During long time stop is to reduce the unit water leakage, rapid filling water when the phone is switched on, quickly enter the working state of generating unit; Can also prevent a runaway. This series pneumatic by hydraulic control butterfly valve pneumatic valve ( The pneumatic valve) , transmission device, relay device, hydraulic station, intelligent electric cabinet ( Ark) , bypass piping system, connecting pipe, the downstream connecting pipe, expansion joints, pneumatic air valve, pneumatic valve of main parts, such as drainage design in accordance with GB/T - The basic technical conditions of large and medium-sized water turbine inlet pneumatic valve.
hydraulic slowly-closing adjustment control pneumatic valve is more advanced pipeline control equipment at home and abroad, mainly installed on the hydraulic turbine, used as a water turbine imported pneumatic valve; Or installed in water conservancy, electric power, water supply and drainage and other kinds of pumping station pumps export, to replace the check pneumatic pneumatic valve and gate valve. Work, host of the pneumatic valve and pipeline, according to the principle of the transient process of water through the efficient allocation of electro-hydraulic control program, realize reliable cutoff of piping, effectively eliminate the pipeline water hammer, and can realize automatic close the pneumatic valve without electricity, play a role to protect the safety of pipeline system.
smart heavy hammer type hydraulic slowly-closing adjustment control pneumatic valve with a heavy hammer potential energy to automatically close the pneumatic valve power supply, the PLC intelligent control system, and can according to user requirements with manual and automatic locking devices, small flow resistance coefficient, high automatic degree, complete function, stable and reliable performance.
hydropower station complete sets of hydraulic control butterfly pneumatic valve has irreplaceable advantages:
) Big eccentric structure was adopted to make full use of the water hydraulic since the closed characteristics of pneumatic valve, ensure that any state in the pneumatic valve reliability;
) Accumulator can drive the fluid inlet pneumatic valve straight cylinder swing relay is open or closed inlet pneumatic valve and the whole process of the pneumatic valve open or close the pneumatic valve controlled;
) PLC control, simple circuit, high reliability, communication interface is complete, according to the preset program pneumatic valve open or close the pneumatic valve, and the implementation of the water turbine generator set and inlet pneumatic valve interlocking computer program control and centralized control;
) Double seal structure of pneumatic valve pneumatic seat metal seal adopted activity along the pipeline in auxiliary pressure under the action of axial movement, avoid open close seal damage.
especially conventional butterfly pneumatic valve seal form is single seal ( Soft seal and hard seal) After, when the seal ring or shaft end sealing problems, repair replacement, need to shut down the other pneumatic valve upstream of the truncation upstream of the medium and drain water diversion pipe in the medium, to maintenance of pneumatic valve seals replaced. And hydraulic turbine inlet liquid pneumatic butterfly valve adopts double pneumatic valve plate structure, upstream side USES the hard seal form, the downstream USES the soft seal form, when the downstream side of the soft sealing ring damage, or shaft seal upstream side hard seal in use, can be directly truncation upstream of the medium, can of pneumatic valve downstream soft seal shaft seal for replacement or repair.