| 摘要 |
FIELD: fuel burning equipment. SUBSTANCE: invention is related to gear to supply liquid fuel to combustion element, it includes at least one fuel feeding conduit and means controlling flow of fuel over this conduit. This controlling means comprises pump set in action by motor and control unit designed to adjust rotation speed of motor and pump in that way. Motor is asynchronous motor, control unit includes static frequency converter, transmitters intended to establish one parameter of motor as minimum and adjustment unit intended to control power supply to motor depending on value of above-mentioned parameter of motor. Pump is positive-displacement pump. Combustion element presents combustion chamber of gas-turbine plant. Proposed gear has computer meant to calculate required flow of liquid fuel per each load of gas-turbine plant and to calculate advisable number of revolutions of motor per each flow. Control unit of gear controls rotation speed in correspondence with these computations. Gear has source supplying liquid fuel and at least two conduits to deliver fuel from mentioned source, each conduit is provided with control aid. One conduit is designed to supply fuel to pilot burner of combustion element, the other conduit is meant to supply fuel to main burner of combustion element. EFFECT: effective and accurate control over fuel supply to combustion element, low consumption of fuel by pump, high precision of determination of required amount of supplied liquid fuel which improves operation of combustion element. 5 cl, 2 dwg |
