A new type of pipe layout condenser

A condenser and pipe layout technology, which is applied in steam/steam condensers, tubular elements, heat exchange equipment, etc., can solve the problems of eddy current dead zone, uneven steam resistance, large subcooling degree, etc., and achieve heat transfer The coefficient and the effect of high operating vacuum, uniform steam flow field without eddy current, and uniform heat load distribution

Active Publication Date: 2018-04-10
DEYANG DONGQI POWER STATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is: for the above-mentioned unsatisfactory condensation effect and even the existence of eddy current dead zone, excessive vapor resistance and large subcooling degree on the shell side, uneven vapor resistance, cross-region flow, and unsatisfactory heat transfer coefficient calculation, there are different degrees The problem of mutual mixing or even air leakage of the steam flows, the invention provides a new type of pipe layout condenser

Method used

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  • A new type of pipe layout condenser
  • A new type of pipe layout condenser
  • A new type of pipe layout condenser

Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 , figure 2The condenser of a new type of pipe layout shown is composed of a front water chamber 1, a front tube plate 2 of the condenser, a middle tube plate 3 of the condenser, a heat exchange tube 4, and a condenser shell assembly 5, Condenser rear end tube plate 6, condenser rear water chamber 7, rear neck 8, M-shaped tube bundle area 9, air extraction tube 10, inverted triangular tube bundle area 11, air cooling area 12, air cooling area steam baffle A13, set Water plate A14, meandering tube bundle area 15 at the lower part of the tube sheet surface, water collecting plate B16, air-cooling flow hole 17, stainless steel corrugated steam baffle 18, air-cooling zone steam baffle B19, air-cooling zone steam baffle C20, split-range steam baffle 21. It is composed of the upper porous water spray plate 22, the lower porous water spray plate 23, the outer curved pipe area 24 on the lower side of the official office, and the tube bundle areas 25 on both sides...

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Abstract

The invention relates to a condenser with a novel tube arrangement manner. The upper parts of tube bundle areas in the condenser are divided into two symmetrical sides by using the center line of a tube plate surface, and each side is composed of connected M-shaped tube bundle areas. Tube bundle areas at the lower part of the tube plate surface in the condenser are symmetrical about the center line of the tube plate surface, and are unfolded and arranged towards the periphery by using an air cooling area as a center. Three steam baffle plates in the air cooling tube bundle area are gradually decreased so that a gradually decreased area is formed by the air cooling tube bundle area. Through the tube arrangement manner, the tube bundle steam flow field is uniform and free of vortex flow, the shell-side steam resistance is small, the heat load distribution is uniform, the condensed water supercooling degree is small, and the heat transfer coefficient and operation vacuum degree of the condenser are relatively high.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a condenser with a new pipe layout method. Background technique [0002] At present, the power plant condenser is a shell-and-tube heat exchanger, which is an important component of thermal power generation and nuclear power units. the vacuum value. The rationality of the cooling tube bundle arrangement of the condenser has an important impact on the steam condensation process, and has a greater impact on its heat transfer performance and energy consumption of the unit. Unreasonable arrangement of tube bundles will lead to unreasonable steam flow field, resulting in uneven distribution of heat load, local air accumulation, excessive flow resistance, high degree of subcooling, mixing of steam flows with different degrees of condensation and even air leakage ( The uncondensed steam directly enters the air-cooled area), etc. [0003] Therefore, designing tube bundle layou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B1/06F28B9/00F28B9/10F28F1/08F28F17/00
CPCF28B1/06F28B9/00F28B9/10F28F1/08F28F17/005
Inventor 黄文兵卢宁王星邓荣华刘洋林佳
Owner DEYANG DONGQI POWER STATION EQUIP
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