Multi-unit pipe type direct-current steam generator

A steam generator, multi-unit technology, applied in steam generation, steam generation methods, steam boilers, etc., can solve the problems of large occupied space and large overall volume, and can solve the difference of thermal expansion, reduce the heat transfer area, and improve the exchange rate. The effect of thermal efficiency

Active Publication Date: 2017-09-08
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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  • Claims
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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

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  • Multi-unit pipe type direct-current steam generator
  • Multi-unit pipe type direct-current steam generator
  • Multi-unit pipe type direct-current steam generator

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Embodiment Construction

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] Such as figure 1 As shown, the multi-unit tubular once-through steam generator according to an embodiment of the present invention includes a closed container body 10 , a sleeve 20 disposed in the container body 10 , a partition assembly 30 and a plurality of heat exchange units 40 . Wherein, a chamber 101 is formed between the sleeve 20 and the inner wall of the container body 10 ; the partition assembly 30 is disposed in the chamber 101 , and divides the chamber 101 into an upper chamber 1011 and a lower chamber 1013 . A plurality of heat exchange units 40 are longitudinally arranged inside the sleeve 20 .

[0033] The side of the container body 10 is provided with a first nozzle 11 and a second nozzle 12; the...

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Abstract

The invention discloses a multi-unit pipe type direct-current steam generator. The steam generator comprises a container body, a sleeve, a partition plate assembly and heat exchange units; a cavity is formed between the sleeve and the inner wall of the container body; the partition plate assembly divides the cavity into an upper cavity body, a middle cavity body and a lower cavity body; a first filler neck and a second filler neck are arranged on the container body; a water inlet channel of the second filler neck, the upper cavity body, the interior of the sleeve, the interiors of the heat exchange units, the lower cavity body and a water outlet channel of the first filler neck communicate with one another in sequence to form a primary side medium channel; the water inlet channel of the first filler neck, the middle cavity body and the water outlet channel of the second filler neck communicate with one another in sequence to form a water return channel; the top of the container body is provided with a steam chamber and a water supply assembly; the heat exchange units are provided with water supply pipelines; and the water supply assembly, the water supply pipelines, an inner flow passage of a heat exchange pipe and the steam chamber communicate with one another in sequence to form a secondary side medium channel. The steam generator has the advantage that the compact arrangement can be realized.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant equipment, in particular to a multi-unit tubular direct-flow steam generator of a pressurized water reactor nuclear power plant. Background technique [0002] At present, the steam generators of most pressurized water reactor nuclear power plants are inverted U-shaped tube steam generators, which mainly include steam-water separators and dryers. 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 relatively large, and the overall layout takes up a large space, so it is not suitable for the layout occasions such as the sea where the space is limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-unit tubular once-through steam generator that is favorable for compact arrangement. [0004] The te...

Claims

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Application Information

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IPC IPC(8): F22B1/00F22B31/08
CPCF22B1/00F22B31/08
Inventor 刘青松叶亮芮旻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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