Abstract:
Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; one or more outlet headers in fluid communication with one or more tube stacks; an outlet manifold in fluid communication with the one or more outlet headers; and a plurality of flow control devices to dynamically control the fluid flow to a respective inlet header.
Abstract:
Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where one or more tube stacks are used for a start-up of the once-through evaporator; one or more outlet headers in fluid communication with one or more tube stacks; a separator in fluid communication with the one or more outlet headers; a first flow control device in fluid communication with the separator and at least one of the tube stacks used for startup; a second flow control device in fluid communication with a superheater to bypass the separator and at least one of the tube stacks used for startup; and a controller for controlling the actuation of the first and second flow control devices in response to a parameter of the evaporator.
Abstract:
A heat exchange assembly for generating steam from a second medium to be used to drive a steam turbine for generating electricity or for other process, includes a tube having a longitudinal axis and an inner wall and an outer wall. The outer wall includes a plurality of spaced fins oriented generally perpendicular to the longitudinal axis. The inner wall defines a preheat zone and a dual phase zone. The preheat zone defines a helical rib configured to provide swirling motion and increase heat transfer surface area to liquid entering the tube increasing heat transfer from the tube to the liquid. The dual phase zone is spaced from the preheat zone and defines a helical rib configured to provide swirling motion to steam and liquid passing through the dual phase zone increasing heat transfer from the tube to the steam and liquid while preventing vapor stagnation and film boiling.
Abstract:
Ein Dampferzeuger (1) mit einem in einer annähernd horizontalen Heizgasrichtung (x) von einem Heizmedium durchströmbaren Heizgaskanal (6) soll mit besonders gering gehaltenem Aufwand und in besonders einfacher Bauweise eine zuverlässige Aufnahme der genannten Lasten, insbesondere der durch den Auslegungs-Innendruck des Heizgases gegebenen zusätzlichen Lasten, gewährleisten. Dazu ist der Heizgaskanal (6) erfindungsgemäß von einer Anzahl von in Heizgasrichtung (x) gesehen hintereinander angeordneten Stützrahmen/Bandagen (14) umfasst, wobei zumindest zwei der Stützrahmen (14) über eine Anzahl von Horizontalscheiben (16) miteinander verbunden sind.
Abstract:
It is a heating unit operating renewable energy substitute fuel of all kinds used to run the main power plants and operation of ships and submarines.
Abstract:
Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more inclined evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where the inclined tubes are inclined at an angle of less than 90 degrees or greater than 90 degrees to a vertical; one or more outlet headers in fluid communication with one or more tube stacks; and an outlet manifold in fluid communication with the one or more outlet headers.
Abstract:
본 발명은 배기가스의 폐열을 이용하여 작동유체의 과열증기 발생효율을 대폭 향상시킬 수 있는 폐열회수를 이용한 과열증기발생장치에 관한 것이다. 본 발명에 의한 폐열회수를 이용한 과열증기발생장치는 양단부에 배기가스가 유입되는 유입탱크 및 배기가스가 유출되는 유출탱크을 가진 하우징; 상기 하우징 내에 설치되고, 상하 일정간격으로 이격되어 배치되는 복수의 배기가스튜브; 및 상기 복수의 배기가스튜브들 사이에 배치되는 복수의 작동유체튜브;를 포함하고, 상기 하우징의 일 측면에는 작동유체가 유입되는 유입파이프 및 작동유체가 유출되는 유출파이프가 설치되며, 상기 유입파이프 및 유출파이프에는 상기 복수의 작동유체튜브와 개별적으로 소통하도록 연결되고, 각 작동유체튜브의 상면 및 하면 각각은 인접한 배기가스튜브와 직접 접촉하며, 상기 하우징의 일측 외면에는 공기 소통공이 관통되어 형성되는 것을 특징으로 한다.
Abstract:
The invention relates to a heat exchanger for generating a steam flow for a solar-thermal power plant, comprising a casing for accommodating a casing-side fluid, and having pipes extending inside the casing for a pipe-side fluid, wherein the heat is transmitted via the pipes from the pipe-side fluid to the casing-side fluid. The casing-side fluid is water, and the pipe-side fluid is a thermo oil or salt. The invention allows for an increase of the startup gradients and the alternating load gradients, thus increasing the availability of the power plant. Furthermore, a higher operational safety can be achieved.
Abstract:
Die Erfindung betrifft einen Wärmetauscher zur Erzeugung eines Dampfstroms für ein solarthermisches Kraftwerk, mit einem Mantel zur Aufnahme eines mantelseitigen Fluids und mit innerhalb des Mantels verlaufenden Rohren für ein rohrseitiges Fluid, wobei die Wärme über die Rohre von dem rohrseitigen Fluid auf das mantelseitige Fluid übertragen wird und wobei das mantelseitige Fluid Wasser und das rohrseitige Fluid ein Thermo-Öl oder Salz ist. Mit Hilfe der Erfindung lassen sich die Anfahrgradienten und Wechsellastgradienten steigern, dies führt zu einer höheren Kraftwerksverfügbarkeit. Ferner lässt sich eine höhere Betriebssicherheit erreichen.