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Tubular steam generator

A steam generator and tubular technology, applied in the field of tubular steam generators, can solve the problems of large occupied space and large overall volume, and achieve the effects of high space utilization, reduced heat transfer area, and guaranteed length consistency.

Active Publication Date: 2017-08-29
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the existing steam generator is connected with the main equipment such as the reactor pressure vessel and the main pump by the main pipeline, the overall volume is large, and the overall layout takes up a lot of space, so it is not suitable for space-limited layout occasions such as offshore

Method used

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  • Tubular steam generator

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Embodiment Construction

[0026] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] Such as figure 1 As shown, the tube steam generator according to an embodiment of the present invention includes a sealed container body 10, a heat exchange tube 20 and a partition assembly 30. Wherein, the container body 10 is provided with a first chamber 101 and a second chamber 102 which are radially distributed from the inside to the outside and are isolated from each other; the heat exchange tube 20 is arranged in the first chamber 101 and runs along the first chamber 101 Extending from top to bottom; the partition assembly 30 is disposed in the second chamber 102, and divides the second chamber 102 into an upper chamber 1021, a middle chamber 1022, and a lower chamber 1023 that are isolated.

[0028] The side of the co...

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Abstract

The invention discloses a tubular steam generator which comprises a closed container body, a heat exchanging pipe and a partition board assembly, wherein a first chamber and a second chamber isolated from each other are radially distributed in the closed container body from inside to outside; the heat exchanging pipe is arranged in the first chamber and extends from top to bottom along the first chamber; and the partition board assembly is arranged in the second chamber and divides the second chamber into an upper cavity, a middle cavity and a lower cavity isolated from each other. According to the tubular steam generator, through unique passage design, compact arrangement among the steam generator, a pressure container and a main pump is realized, and the arrangement has obvious advantages under the condition that the space is limited. A spiral pipe is adopted as the heat exchanging pipe, so that on one hand, heat transferring is enhanced, the required heat transferring area is reduced, and the heat exchanging efficiency is improved, and on the other hand, the problem about thermal expansion difference between a heat transferring pipe and a tube plate is solved, and the thermal stress problem can be solved.

Description

Technical field [0001] The invention relates to the technical field of nuclear power plant equipment, in particular to a tubular steam generator of a pressurized water reactor nuclear power plant. Background technique [0002] At present, most of the steam generators of PWR nuclear power plants are inverted U-tube steam generators, which mainly include steam-water separators and dryers. In addition, the existing steam generators are connected with main equipment such as reactor pressure vessels, main pumps, etc., and the overall volume is large, and the overall layout takes up a large space, which is not suitable for layout occasions with limited space such as offshore. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a tube-type steam generator that is conducive to compact arrangement. [0004] The technical solution adopted by the present invention to solve its technical problems is to provide a tubular steam generator, w...

Claims

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Application Information

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IPC IPC(8): F22B1/16F22B31/08F22B37/34
CPCF22B1/162F22B31/08F22B37/34
Inventor 芮旻刘青松叶亮路广遥袁杰李诚周建明周国丰赵月扬杨珏韩万富郝天才刘强沈黎
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
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