PURPOSE:To prevent a steam turbine from being applied an excessive thermal stress and promote a prolongation of the turbine life, by obtaining a thermal stress of the steam turbine, allowing said thermal stress not to exceed a predetermined limit value and controlling a load of the plant. CONSTITUTION:In the combined-cycle generating plant which performs an operation of the combined use of a gas t...

PURPOSE:To suppress a progress of wear in life of the rotor when in a rapid change of the load, by operating at first a rapid load change of the gas turbine, at a time, and after the change of the steam temperature reaches a prescribed value, changing the load one by one by bypassing the output steam. CONSTITUTION:At time t1, with a steam temperature change after ST the first stage reaching DELTAT...

PURPOSE:To enable a changeover operation of the initial pressure control without changes of a steam pressure or a sudden change of an opening degree of the control valve in the steam turbine device, by allowing an output signal of the initial pressure controller to follow up an output signal of the speed governor controller when the steam turbine device is controlled by the speed governor controll...

PURPOSE:To obtain stabilized pressure control characteristics, by preventing hunting of the regulating valve by setting a function having hysteresis characteristics for the steam turbine load to control the inlet pressure of the regulating valve of the steam turbine. CONSTITUTION:In a combined-cycle power plant whose main machinery is composed of a gas turbine generator 2, steam turbine generator ...

PURPOSE:To independently control a plant output and steam output, by controlling a fuel valve in such means that a plant load requirement signal is converted into a signal corresponding to a fuel flow rate of the gas turbine with a function that shows a corresponding relation between the fuel flow rate and the plant total output. CONSTITUTION:The combined-cycle generating plant performs an operati...

PURPOSE:To control the end of a stock plate to be constantly located at a given position, by pressing a shaft projecting from a shifting base, which is provided with a plate-attracting means, by means of a spring which is installed in the wide hole of a crank rod, and by thus constituting the connecting part of a plate-supplying device. CONSTITUTION:A storage-battery assembling device assembles a ...

PURPOSE:To prevent a corrosion caused by an effect of sulfuric acid and improve an efficiency of heat recovery by providing a pipe line through which a circulating water from a pump is supplied to a feed water heater and an evaporator inside an exhaust gas economizer and disposing a control valve for regulating a flow rate of condensed water, at a position where the line branches. CONSTITUTION:A...

PURPOSE:To apply the engine brakes automatically at the optimal time, by discriminating that braking is necessary when the engine load drops quickly and further drops below a preset level in a certain time from the quick drop. CONSTITUTION:A signal from a load sensor 102 in accordance with the state of a throttle valve is put out into a load fluctuation detecting circuit 103 which generates a sign...

A method for preheating the oxygen used in converters. Steam which is already available in the usual steel manufacturing plant, is used to preheat the oxygen. The steam may be generated from waste gas produced in an converter process. A heat exchanger which may be placed into an oxygen supply line, feeds into a line of the blast lance. This heat exchanger may be placed between the feed line to the...

A process for joining fluorinated polymer cation exchange membrane is provided, wherein fluorinated polymer cation exchange membranes containing the pendent groups of -COOH on at least one side of the membranes are treated with a tertiary amine or a quarternary ammonium base, then heat- pressed.

PCT No. PCT/GB81/00129 Sec. 371 Date Mar. 3, 1982 Sec. 102(e) Date Mar. 3, 1982 PCT Filed Jul. 3, 1981 PCT Pub. No. WO82/00182 PCT Pub. Date Jan. 21, 1982.A method of applying a coating of polyarylene sulphide to a bearing in which an initmate mixture of a polyarylene sulphide with an aryl ester of an aryl alcohol is applied to a bearing blank and subsequently heated to evaporate the ester and cur...

A decanter centrifuge for separating a raw material into solids and two liquid phases of different densities has inlet apertures (11) for the raw material and outlet apertures (12) for solids. Each liquid phase is withdrawn intermediate the ends of the separating space (10) through a separate set of outlet tubes (13, 14) extending through a conical section (20) of the drum wall which section diver...

Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.

A sealed lead-acid battery formed by joining two halves of a battery container. Before joining, the separate halves have grids placed in adjacent recesses, separated by partition walls integral with the wall of the container half. Pairs of adjacent grids are electrically connected through the partition wall. The recesses are alternately filled with positive and negative active materials. Then the ...

An apparatus for applying a tire material such as carcass ply to a molding drum in a tire molding process wherein the cut leading end of the ply is caused to pressure-adhere onto the molding drum by a leading-end applying and pressure-adhering roller. The molding drum is caused to rotate at an angle less than one rotation, and thereafter the ply is cut by the cutter mechanism, and the molding drum...

A sheet feeder comprises a pair of guide rails (4) one at either side of the feeder and a pair of feed boards (1,2) each having at either side thereof a pair of vertically aligned rollers (7 and 8) and a third roller (9) retractable by means of a lever (10) to allow the roller (9) to pass through a notch (4b) in a flange (4a) of the feed board guide rail (4). The feed board (1) is lifted by means ...