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A Gravity Separation Hydrophobic Structure Dedicated to Nuclear Power Plant Steam Generators

A steam generator and gravity separation technology, applied in steam generation, steam separation devices, components of steam boilers, etc., can solve the problem that the drainage capacity of the drain pipe cannot meet the requirements, and achieve the guarantee of the drainage capacity, reduce the height, and ensure separation. The effect of efficiency

Active Publication Date: 2018-09-28
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the small-diameter steam-water separator assembly cannot meet the requirements of the water-repellent capacity due to the limited space on the upper cylinder of the steam generator, so that the water-repellent capacity cannot meet the requirements. The gravity separation hydrophobic structure of the steam generator increases the hydrophobic flow area of ​​the gravity separation hydrophobic structure under the condition that the diameter of the upper cylinder of the steam generator remains unchanged, ensuring the hydrophobic capacity of the gravity separation hydrophobic structure, thereby ensuring the separation of the gravity separation and even the dryer Efficiency, obtain qualified dry saturated steam

Method used

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  • A Gravity Separation Hydrophobic Structure Dedicated to Nuclear Power Plant Steam Generators
  • A Gravity Separation Hydrophobic Structure Dedicated to Nuclear Power Plant Steam Generators
  • A Gravity Separation Hydrophobic Structure Dedicated to Nuclear Power Plant Steam Generators

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Embodiment

[0020] Such as image 3 and Figure 4 As shown, a gravity-separated hydrophobic structure dedicated to nuclear power plant steam generators includes an upper deck 1 and several steam-water separators 6, and the steam-water separators 6 all pass through the upper deck 1, and the steam-water separators 6 are combined to form three A concentric ring structure with different diameters, between the ring structures and outside the outermost ring structure, a hydrophobic ring 8 concentric with the ring structure is provided, and the hydrophobic ring 8 passes through the upper deck 1, and the hydrophobic ring The outer wall of the outer ring of 8 or the inner wall of the inner ring are all vertically welded and fixed with the corresponding upper deck 1. The hydrophobic ring 8 is an annular structure with openings at both ends and a hollow interior. The top of the hydrophobic ring 8 is set at the same level as the upper surface of the upper deck 1, and its bottom end passes through th...

Embodiment 2

[0023] Such as image 3 and Figure 4 As shown, this embodiment solves the steam exhaust problem on the basis of Embodiment 1. For the large-diameter steam-water separator 6 currently used in nuclear power plants, there is enough space for the upper cylinder of the steam generator, and the exhaust pipe can be arranged calmly to meet the exhaust gas requirements. Steam demand, for small-diameter steam-water separator components, it is necessary to arrange a lot of small-diameter exhaust pipes, and it is very difficult to arrange these exhaust pipes in the limited space on the upper cylinder of the steam generator. In order to adapt to the application of compact and high-efficiency small-diameter steam-water separators, the steam generator of the nuclear power plant in this embodiment adopts small-diameter steam-water separator assemblies, and a total of three circles of steam-water separator assemblies are arranged. Two vertical flat plates are arranged between the steam-water...

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Abstract

The invention discloses a gravity separation draining structure special for a nuclear power plant steam generator. The gravity separation draining structure comprises an upper deck and multiple steam-water separators, wherein the steam-water separators penetrate the upper deck. The steam-water separators are combined to form multiple ring-shaped structures which are concentric and are different in diameter, draining rings concentric with the ring-shaped structures are arranged between the ring-shaped structures and at the outer portion of the outermost layer of ring-shaped structure, and the draining rings penetrate the upper deck. According to the gravity separation draining structure special for the nuclear power plant steam generator, the draining circulation area of the gravity separation draining structure is enlarged under the condition that the diameter of a cylinder on the steam generator is not changed, the draining capability of the gravity separation draining structure is ensured, the height of accumulated water on the deck is reduced, and therefore gravity separation even the separation efficiency of a drier are ensured, dry saturated steam with qualified quality is obtained, small-diameter steam-water separator assemblies can be conveniently arranged, and conditions are created for application of the compact and efficient small-diameter steam-water separators.

Description

technical field [0001] The invention relates to a nuclear power plant steam generator technology, in particular to the application of a compact, high-efficiency and small-diameter steam-water separator, and in particular to a gravity separation hydrophobic structure specially used for a nuclear power plant steam generator. Background technique [0002] The gravity separation space is located between the dryer and the steam-water separator in the steam generator of the nuclear power plant. Its function is to separate the larger-sized water droplets at the outlet of the steam-water separator through gravity and reduce the humidity at the inlet of the dryer. The gravity separation hydrophobic structure should ensure that the gravity separated water is drained smoothly and flows to the descending channel of the steam generator, and it should also avoid the hedging between the hydrophobic water and the steam in the tangential hydrophobic water of the steam-water separator. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/26
CPCF22B37/268
Inventor 陈军亮张富源何劲松王海松谈国伟汤臣杭李冬慧
Owner NUCLEAR POWER INSTITUTE OF CHINA
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