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A method and apparatus for connecting sections of a once-through horizontal evaporator

An evaporator, one-way technology, applied in the direction of connection, connection components, mechanical equipment, etc., can solve the problems of loss of productivity, shortening the time of factory production and operation, and high cost

Active Publication Date: 2014-12-10
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a gas-side temperature imbalance downstream of the heating surface as a direct result of the vertically arranged parallel pipes
These additional design considerations utilize additional engineering and manufacturing, both of which are expensive
These additional features also require regular maintenance, which shortens the production run time of the plant and thus results in a loss of productivity

Method used

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  • A method and apparatus for connecting sections of a once-through horizontal evaporator
  • A method and apparatus for connecting sections of a once-through horizontal evaporator
  • A method and apparatus for connecting sections of a once-through horizontal evaporator

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Embodiment Construction

[0030] Disclosed herein is a heat recovery steam generator (HRSG) comprising a single heat exchanger or a plurality of heat exchangers whose tubes are arranged non-vertically. In one embodiment, the tubes are arranged substantially horizontally. By "substantially horizontal" it is implied that the tubes are oriented approximately horizontally (ie, arranged parallel to the horizontal within ±2 degrees). A section (or sections) containing horizontal tubes is also referred to as a "single-pass evaporator" because, when operating in subcritical conditions, the working fluid (e.g., water, ammonia, etc.) passes through the section The transition to vapor is gradual during a single pass from the inlet header to the outlet header. Likewise, for supercritical operation, the supercritical working fluid is heated to a higher temperature during a single pass through the section from the inlet header to the outlet header. Sections of horizontal tubes are hereinafter referred to as "tube ...

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PUM

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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; and an outlet manifold in fluid communication with the one or more outlet headers.

Description

[0001] Cross References to Related Applications [0002] This disclosure claims U.S. Provisional Application No. 61 / 587,332, filed January 17, 2012, U.S. Provisional Application No. 61 / 587,230, filed January 17, 2012, U.S. Provisional Application No. 61 / 587,428, priority of U.S. Provisional Application No. 61 / 587,359, filed January 17, 2012, and U.S. Provisional Application No. 61 / 587,402, filed January 17, 2012, which are hereby adopted in their entirety Incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to heat recovery steam generators (HRSGs), and more particularly, to methods and apparatus for connecting a section of a single-pass evaporator of an HRSG having substantially horizontal and / or horizontal Inclined tube. Background technique [0004] A heat recovery steam generator (HRSG) is an energy recovery heat exchanger that recovers heat from a hot gas stream. It produces steam which can be used in the proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B15/00F22B29/06F28F9/013F28F9/26F22B37/00F28D7/08
CPCF28F1/00F16B17/00F28D7/082F28F9/02F28F9/0131F28F9/26F22B29/06F22B37/001Y10T29/4935Y10T403/70Y10T403/7075
Inventor J.F.马吉W.张B.W.威廉V.Q.特隆C.J.勒奇J.D.普施勒尔
Owner GENERAL ELECTRIC TECH GMBH