Abstract: A power plant and method for preserving a power plant, the power plant having a steam turbine with a shaft, further including a condenser mounted downstream of the steam turbine in the direction of flow of the steam, a vacuum pump mounted downstream of the condenser, a compressed steam system with shaft seals, and a compressed steam supply line extending into the shaft seals; a first nitrogen line extends into the condenser, and a second nitrogen line as well as a recirculation line that branches off the vacuum pump extend into the compressed steam supply line.

Abstract: A power plant and method for preserving a power plant, the power plant having a steam turbine with a shaft, further including a condenser mounted downstream of the steam turbine in the direction of flow of the steam, a vacuum pump mounted downstream of the condenser, a compressed steam system with shaft seals, and a compressed steam supply line extending into the shaft seals; a first nitrogen line extends into the condenser, and a second nitrogen line as well as a recirculation line that branches off the vacuum pump extend into the compressed steam supply line.

Abstract: An aqueous oil-in-water emulsion containing a propylethoxysilane oligomer mixture or a mixture of a propylethoxysilane oligomer mixture and octyltriethoxysilane in a weight ratio of 3:1 to 1:3, at least one emulsifier or an emulsifier system, at least one content of a 2-aminoethanol and water is used as an addition in the production of hydraulically setting cement mixtures such as mortar, screed or concrete for reduction of the shrinkage characteristics.

Abstract: A heat storage device for storing and providing heat energy accruing with the power generation by means of a fluid, includes at least a first and a second chamber. The first chamber is disposed above the second chamber and a conduit disposed substantially in the chambers connects an upper region of the first chamber to a lower region of the second chamber, such that in operation there are no temperature differences and thus also no buoyancy forces between end points of the conduit. An installation is for combined heat and power, and a method is for storing and providing heat energy accruing with the power generation.

Abstract: An aqueous oil-in-water emulsion containing a propylethoxysilane oligomer mixture or a mixture of a propylethoxysilane oligomer mixture and octyltriethoxysilane in a weight ratio of 3:1 to 1:3, at least one emulsifier or an emulsifier system, at least one content of a 2-aminoethanol and water is used as an addition in the production of hydraulically setting cement mixtures such as mortar, screed or concrete for reduction of the shrinkage characteristics.

Abstract: A power plant, particularly a coupled gas and steam power plant, including a plurality of first drainage lines that are fluidically connected on the upstream side to a water-steam circuit and are fluidically connected on the downstream side to an overpressure vessel, is provided. Additionally, at least one steam-conducting supply line, via which steam can be fed back to the water-steam circuit, is fluidically connected to the overpressure vessel. A method for operating such a power plant, wherein the at least one steam-conducting supply line can supply steam to the water-steam circuit in the region of a low-pressure stage, particularly in the region of the steam drum of the low-pressure stage is also provided.

Abstract: A heat accumulator for storing and providing heat energy accruing when power is generated, includes a tank for a fluid, including an expansion line, which exits from the tank and which extends above the tank in order to increase the static pressure in the tank, the expansion line having an open end opposite the tank-side end for establishing a connection between the tank interior and the atmosphere, wherein the expansion line extends into the tank. A method for storing and providing heat energy accruing when power is generated wherein the fluid is used in a district heating grid and is stored in a tank.

Abstract: A heat storage device for storing and providing heat energy accruing with the power generation by means of a fluid, includes at least a first and a second chamber. The first chamber is disposed above the second chamber and a conduit disposed substantially in the chambers connects an upper region of the first chamber to a lower region of the second chamber, such that in operation there are no temperature differences and thus also no buoyancy forces between end points of the conduit. An installation is for combined heat and power, and a method is for storing and providing heat energy accruing with the power generation.

Abstract: A power plant, particularly a coupled gas and steam power plant, including a plurality of first drainage lines that are fluidically connected on the upstream side to a water-steam circuit and are fluidically connected on the downstream side to an overpressure vessel, is provided. Additionally, at least one steam-conducting supply line, via which steam can be fed back to the water-steam circuit, is fluidically connected to the overpressure vessel. A method for operating such a power plant, wherein the at least one steam-conducting supply line can supply steam to the water-steam circuit in the region of a low-pressure stage, particularly in the region of the steam drum of the low-pressure stage is also provided.

Abstract: A method for operating a gas and steam turbine system, in which, in an associated waste-heat steam generator, the heat contained in the expanded working medium of an associated gas turbine is utilized for the generation of steam for an associated steam turbine with at least one low-pressure part and one high-pressure part, the low-pressure part being assigned in the waste-heat steam generator a low-pressure stage with a low-pressure drum, gases dissolved in the water or steam being degassed essentially of steam for the low-pressure part from the low-pressure drum, and, to regulate degassing, steam production in the low-pressure drum being varied in that heat is displaced inside the waste-heat steam generator, the heat in the waste-heat steam generator being displaced in that less heat is extracted from the working medium in a medium-pressure stage or high-pressure stage of the gas and steam turbine system.

Abstract: A method is provided for connecting at least one further steam generator to a first steam generator in a power plant. The power plant includes at least two steam generators and a steam turbine, in which a fluid used to drive the steam turbine is conveyed in a fluid circuit having a plurality of steam systems. The steam systems are assigned individual steam generators and are able to be separated from one another by shut-off valves. The fluid of at least the first steam generator is connected to the steam turbine. The method involves opening the shut-off valve of at least one first steam system of the at least one further steam generator before the steam of the at least one further steam generator has reached approximately the same steam parameters as the steam of the first steam generator, so that steam can flow into the further steam generator.

Abstract: The present invention relates to a polymerizate in the form of an aqueous polymer dispersion, the polymerizate being obtainable by radical polymerization of monomers in an aqueous medium in the presence of a free radical initiator and a protective colloid, wherein the monomers comprise a) 50-99.99 wt. % of at least one vinyl monomer chosen from the group of vinyl esters, (meth)acrylic esters, vinyl aromatic compounds, vinyl halides, and olefins, and b) 0.01-30 wt. % of at least one macromonomer M, the macromonomer M being a reaction product of components (i), (ii), and (iii), said —component (i) having at least one olefinically unsaturated group and at least one hydroxyl, amine and/or thiol group, —component (ii) being a di- or triisocyanate, and —component (iii) having at least two terminal groups selected from hydroxyl, amine and/or thiol groups, c) 0-20 wt % of at least one vinyl monomer with at least one functional group, wherein the monomers a), b), and c) sum up to 100 wt. % of total monomers employed.

Abstract: A method is provided for connecting at least one further steam generator to a first steam generator in a power plant. The power plant includes at least two steam generators and a steam turbine, in which a fluid used to drive the steam turbine is conveyed in a fluid circuit having a plurality of steam systems. The steam systems are assigned individual steam generators and are able to be separated from one another by shut-off valves. The fluid of at least the first steam generator is connected to the steam turbine. The method involves opening the shut-off valve of at least one first steam system of the at least one further steam generator before the steam of the at least one further steam generator has reached approximately the same steam parameters as the steam of the first steam generator, so that steam can flow into the further steam generator.

Abstract: An intake air temperature control device including a heat exchanger is provided. The heat exchanger is connected at one side into an intake air line and is connected at the other side into a circuit of an intake air preheating system, wherein a store for a fluid for heat transfer may be thermally connected to the circuit. A method for operating an intake air temperature control device is also provided.

Abstract: The invention relates to a method for operating a steam power station and a power plant as well as a corresponding steam power station. According to the invention, essentially all of the water that is drained from at least one pressure stage of the steam power station is collected, stored, and recirculated into the water circuit of steam power station.

Abstract: The invention relates to a method and a device for treating contaminated water in a steam power installation, and to a corresponding steam power installation. According to the invention, steam and water are separated between a first steam-collecting drum of a pressure level and a second steam-collecting drum of a lower pressure level.

Abstract: The invention relates to a method and device for removing water from a steam plant and to a steam plant with which, according to the degree of impurity of a number of partial volumes of water, a separate collection of the relevant partial water volumes is carried out.

Abstract: The invention relates to a method for operating a steam power station and a power plant as well as a corresponding steam power station. According to the invention, essentially all of the water that is drained from at least one pressure stage of the steam power station is collected, stored, and recirculated into the water circuit of steam power station.

Abstract: The invention relates to a method and a device for treating contaminated water in a steam power installation, and to a corresponding steam power installation. According to the invention, steam and water are separated between a first steam-collecting drum of a pressure level and a second steam-collecting drum of a lower pressure level.

Abstract: The invention relates to a method and device for removing water from a steam plant and to a steam plant with which, according to the degree of impurity of a number of partial volumes of water, a separate collection of the relevant partial water volumes is carried out.