Patent application number | Description | Published |
20100288210 | Method for operating a once-through steam generator and forced-flow steam generator - A method for operating a once-through steam generator including an evaporator heating surface is provided. A target value for the supply water mass flow is fed to a device for setting the supply water mass flow, which is predefined using the ratio of the heat flow currently being transferred in the evaporator heating surface from the hot gas to the flow medium to a target enthalpy increase predefined with respect to the desired live steam condition of the flow medium in the evaporator heating surface. A forced-flow steam generator used for carrying out the method is also provided. The heat flow transferred from the hot gas to the flow medium is ascertained for this purpose allowing for a specific temperature value characteristic of the current temperature of the hot gas at the evaporator inlet and a specific mass flow value characteristic for the current mass flow of the hot gas. | 11-18-2010 |
20110162592 | CONTINUOUS STEAM GENERATOR - A continuous steam generator is provided. The continuous steam generator includes a number of burners for fossil fuels, the outside wall thereof being fully or partially formed from steam generator tubes welded together in a gas-tight manner. The burners are arranged in a combustion chamber, and a vertical gas duct is mounted downstream of the combustion chamber above a horizontal gas duct on the hot gas side. A first part of the steam generating tubes forms a system of evaporation tubes mounted upstream of a water separator system, on the flow medium side, and a second side, and a second part of the steam generating tubes forms a system of superheater tubes mounted downstream of the water separator system on the flow medium side. Superheater tubes adjacent and parallel to evaporation tubes are mounted directly downstream of the water separator system on the flow medium side. | 07-07-2011 |
20110162594 | Waste Heat Steam Generator - A waste heat steam generator including evaporator tubes is provided. The evaporator tubes are connected in parallel on the flow medium side, a plurality of overheating tubes are mounted downstream of the evaporator tubes using a water separation system. The water separation system includes water separation elements, each water separation element being respectively mounted downstream of the plurality of evaporator tubes and/or upstream of a plurality of overheating tubes. Each water separating element includes an inlet pipe which is respectively connected upstream to the evaporator tubes, the inlet pipe extending into a water evacuation pipe when seen in the longitudinal direction. A plurality of outflow pipes branch off in the transitional area, the pipes being connected to an inlet collector of the overheating tubes which are respectively connected downstream. A distribution element is arranged on the steam side between the respective water separating element and the inlet collector. | 07-07-2011 |
20110197830 | Continuous steam generator - A continuous steam generator including a combustion chamber with a plurality of burners for fossil fuel is provided. A vertical gas duct is connected downstream of the combustion chamber on the hot gas side, in an upper region via a horizontal gas duct. The outside wall of the combustion chamber is formed from evaporation pipes which are welded together in a gas-tight manner and mounted upstream of a water separator system on the flow medium side and from superheater pipes which are welded together in a gas-tight manner and mounted downstream of the water separator system. The water separator system includes a plurality of water separation elements, each element includes an inlet tube which is connected to the respective upstream evaporation for tubes, which extend into a water evacuation tube. A distributer element is arranged on the evaporator side between the respective water separator element and the inlet collector. | 08-18-2011 |
20110203536 | Continuous steam generator - A continuous steam generator is provided. The continuous steam generator includes a combustion chamber having a number of burners for fossil fuels, downstream of which a vertical gas duct is mounted, on the hot gas side, in an upper region above a horizontal gas duct. The outside wall of the combustion chamber is formed, in a lower region, from evaporation tubes welded together in a gas-tight manner and mounted upstream of a water separator system, on the flow medium side, and in an upper region, from superheater tubes welded together in a gastight manner and mounted downstream of the water separator system on the flow medium side. The boundary between the regions of the evaporation tubes and the superheater tubes is essentially horizontal around the combustion chamber, in a region of the bottom of the horizontal gas duct. | 08-25-2011 |
20110315094 | Continuous Evaporator - A continuous evaporator for a horizontally constructed waste heat steam generator is provided. The continuous evaporator includes a first evaporator heating surface having a plurality of essentially vertically arranged first steam generator tubes through which a flow medium can flow from bottom to top, and a second evaporator heating surface which is mounted downstream of the first evaporator heating surface on the flow medium side. The second evaporator heating surface includes a plurality of additional essentially vertically arranged second steam generator tubes through which a flow medium can flow from bottom to top. The second steam generator tubes are designed in such a manner that the average mass flow density which can be controlled in the full load operation does not fall below a predetermined minimum mass flow density in the second steam generator tubes. | 12-29-2011 |
20110315095 | CONTINUOUS EVAPORATOR - A continuous evaporator for a horizontally constructed waste heat steam generator is provided. The continuous evaporator includes a first evaporator heating surface having a plurality of essentially vertically arranged first steam generator tubes through which a flow medium can flow from bottom to top, and a second evaporator heating surface which is mounted downstream of the first evaporator heating surface on the flow medium side. The second evaporator heating surface includes a plurality of additional essentially vertically arranged second steam generator tubes through which a flow medium can flow from bottom to top. The first steam generator tubes are designed in such a manner that the average mass flow density which may be controlled in the full load operation does not fall below the predetermined minimum mass flow density in the first steam generator tubes. | 12-29-2011 |
20120024241 | Continuous evaporator - A continuous evaporator for a horizontally constructed waste heat steam generator is provided. The continuous evaporator includes a first evaporator heating surface having a plurality of essentially vertically arranged first steam generator tubes through which a flow medium may flow from bottom to top, and another second evaporator heating surface which is mounted downstream of the first evaporator heating surface on the flow medium side. The second evaporator heating surface includes a plurality of additional essentially vertically arranged second steam generator tubes through which a flow medium may flow from bottom to top. An aperature system is arranged downstream of the second steam generator tubes on the flow medium side. | 02-02-2012 |
20120073520 | CONTINUOUS EVAPORATOR - A continuous evaporator for a horizontal waste heat steam generator is provided. The continuous evaporator includes a first evaporator heating surface that has a number of essentially vertically arranged first steam generating tubes wherein the circulation takes place from the bottom to the top, and another second evaporator heating surface located downstream of the first evaporator heating surface on the side of the flow medium, the second evaporator heating surface including a number of other essentially vertically arranged second steam generating tubes wherein the circulation takes place from the bottom to the top is provided. In order to provide a continuous evaporator with an especially simple structure and an especially long service life, a number of second steam generator tubes have an inner profiled element. | 03-29-2012 |
20130047611 | SOLAR POWER PLANT PART OF A SOLAR THERMAL POWER PLANT AND SOLAR THERMAL POWER PLANT PROVIDED WITH SOLAR COLLECTOR SURFACES FOR A HEAT TRANSFER MEDIUM AND WORKING MEDIUM - A solar power plant part of a solar thermal power plant including a first solar collector surface which is arranged in one section of a heat transfer medium circuit is provided. A second solar collector surface is arranged in the solar power plant part as a super heater for a working medium which may be released for technical work in a turbine. A solar thermal power plant which includes a solar power plant part is also provided. The solar thermal plant includes a working medium circuit and a steam turbine. A method for operating a solar thermal power plant is also provided. | 02-28-2013 |
20130067982 | APPARATUS FOR PRODUCING INSERTS FOR STEAM GENERATOR TUBES - An apparatus for producing inserts for steam generator tubes is provided. The apparatus is intended to allow a technically particularly simple production process, and consequently allow particularly high-speed production of inserts. For this purpose, the apparatus includes a winding head with a wire guiding pin, a guiding opening for a former shaft, provided with a number of spiral slots, and a pressure roller, the wire guiding pin, the guiding opening and the pressure roller being arranged in such a way that a tangent of the pressure roller and of a slot of the former shaft and the guiding axis of wire guiding pin substantially coincide. | 03-21-2013 |
20130087106 | METHOD FOR PRODUCING STEAM GENERATOR TUBES - A method for producing steam generator tubes is provided. The method is intended to allow a technically particularly simple production process and at the same time allow particularly high flexibility with regards to the materials that may be used to achieve a particularly high efficiency of a steam generator. For this purpose, an insert is fixed in slots of a former shaft, the former shaft with the insert is introduced into a steam generator tube, the fixing of the insert on the former shaft is released and the former shaft is removed again from the steam generator tube. | 04-11-2013 |
20130186089 | CONTINUOUS FLOW STEAM GENERATOR HAVING AN INTEGRATED REHEATER - A continuous flow steam generator including a vessel with a heat transfer medium inlet and a heat transfer medium outlet is provided. A heat transfer medium channel is formed between the heat transfer medium inlet and the heat transfer medium outlet, and a heat transfer medium flows in the channel, having steam generator tubes disposed in the heat transfer medium channel, wherein a first portion of the steam generator tubes, and a second portion of the steam generator tubes is designed as a system of preheating and boiler tubes, and the first portion is disposed upstream of the second portion in the flow direction of the heat transfer medium. A steam generator device having a continuous flow steam generator and a water separation system is also provided along with a solar thermal power plant. | 07-25-2013 |
20130186872 | METHOD FOR CONTROLLING A SPOT WELDING SYSTEM, INCLUDING THE DETERMINATION OF THE POSITION OF AN INSERTED ELEMENT IN A HOLLOW MEMBER; ASSOCIATED SPOT WELDING SYSTEM - A method of controlling a spot welding system used for attaching an inserted element in a hollow member is provided. A position of the inserted element in the hollow member is determined, the position of an attachment point is determined from the position of the inserted element in the hollow member, and a spot welding operation is performed at the attachment point. Further, a spot welding system for carrying out the method is provided. | 07-25-2013 |
20130205784 | FORCED-FLOW STEAM GENERATOR - A forced-flow steam generator includes first and second steam generator pipes which form a surrounding wall, wherein the first and second steam generator pipes are welded in a gas-tight fashion and are traversable by flow in a vertical direction. A passage collector is arranged within the surrounding wall, wherein the passage collector connects the first steam generator pipes with the second steam generator pipes. The first steam generator pipes are connected at an outlet side to an inlet side of the second steam generator pipes, wherein the second steam generator pipes are connected in series with the first steam generator pipes. Each of the second generator pipes has a restrictor device. Further, a power plant with a forced-flow steam generator is provided. | 08-15-2013 |
20140034044 | METHOD FOR OPERATING A DIRECTLY HEATED, SOLAR-THERMAL STEAM GENERATOR - A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value M | 02-06-2014 |