Fuel Oil Pressure Reducing Valve For Water Turbine Hydropower Staton

Water Turbine Hydropower Staton Full Oil-pressure Control Pressure Regulating Valve

Introduction

Pressure-regulating valve is safety equipment of the hydropower station with long pressure diversion penstock. For a power station with a long pressure diversion system, it is impossible to select a suitable guide vane shutdown time so that the pressure rise ζ of the pressure diversion system and the rate rise β of the unit are within the allowable range. In order to ensure the stability of the unit transition process, the method of setting up surge tank (tower) is often adopted. It is possible to adopt this method for power stations with good geological conditions. But for the high water head power station with poor geological conditions, it has not only a big investment and long construction cycle but also technical difficulty. It has been proved feasible to install a pressure regulating valve to replace surge tank(tower) (or partial replacement) on the turbine, and it is a better measure to build diversion hydropower station.

Application

The basic operation of the full oil pressure control TFW type regulating valve is: quick opening,slow-closing; when the small load changes, the pressure regulating valve does not operate; when the high load shedding, the pressure regulating valves opened, and the guide vanes will be closed. When the load is increased, the pressure regulating valve does not work. 

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