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U-shaped tubular condenser of vertical type spiral baffle plate

A technology of helical baffles and baffles, used in steam/steam condensers, heat exchanger shells, lighting and heating equipment, etc., can solve problems such as application limitations, improve condensation heat transfer coefficient, avoid liquid Aggregate effect

Inactive Publication Date: 2014-09-10
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the vertical condenser has the advantages of small footprint and simple structure due to the convenience of pumping tube bundles (no need to set roller raceways), but when the arcuate baffle heat exchanger structure is used, the heat transfer coefficient of condensation on the shell side is obviously low Limited application in horizontal condensers

Method used

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  • U-shaped tubular condenser of vertical type spiral baffle plate
  • U-shaped tubular condenser of vertical type spiral baffle plate

Examples

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Embodiment Construction

[0016] Examples see figure 1 , a vertical spiral baffle U-shaped tube condenser, comprising a shell assembly 1, a tube bundle assembly 2, an upper head assembly 3, an annular gasket 4, a double-chamber gasket 5 and a fastener group 6; The shell assembly 1 includes a cylinder 1-1, a flange A1-2, a lower head 1-3, a shell-side fluid inlet connection 1-4, a shell-side fluid outlet connection 1-5, legs 1-6, Bottom interface and plug 1-7; the upper head assembly 3 includes flange B3-1, straight pipe section 3-2, upper head 3-3, longitudinal partition 3-4, pipe side fluid inlet connection 3- 5. Tube side fluid outlet connection 3-6; the tube bundle assembly 2 includes a U-shaped tube bundle 2-1, a tube plate 2-2, a spiral baffle group 2-3, an annular plate 2-4, and a single-head inclined plane fixed distance Sleeve group 2-5, double-headed inclined-plane fixed-distance casing group 2-6, tie rod 2-7, washer B2-8, nut B2-9 and spacer group 2-10; the tube bundle assembly 2 is arranged...

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Abstract

A U-shaped tubular condenser of a vertical type spiral baffle plate comprises a shell body component, a tube bundle component, an upper head component and the like. A downstream edge of a fan-shaped baffle plate of a spiral baffle plate set of the tube bundle component is bent upwards to form a liquid blocking weir which is arranged among rows of tubes. An upstream liquid dredging opening and a downstream liquid dredging opening are formed in an arc-shaped edge of the fan-shaped baffle plate. An inclination angle of the fan-shaped baffle plate is reduced in sections from top to bottom. The spiral baffle plate set can be a two-head spiral or a three-head spiral. The fan-shaped baffle plate not only supports the tube bundle, but also is in favor of drying the surface of the tube bundle by scraping, guides condensing liquid to the inner wall of the shell body, discharges the condensing liquid to the bottom portion along the wall surface, enables a tube which is arranged under the baffle plate to directly contact steam through the dry surface and improves condensation heat transfer coefficient. The U-shaped tubular condenser of the vertical type spiral baffle plate enables the heat transfer coefficient of the vertical type shell-and-tube condenser which has the advantages of being small in occupied area, enabling the tube bundle to be conveniently taken out and being convenient to repair to be improved.

Description

technical field [0001] The invention relates to a vertical spiral baffle U-shaped tube condenser. Background technique [0002] Condenser is a heat exchange device that condenses steam into liquid, and is widely used in power generation, metallurgy, petrochemical, refrigeration and air conditioning and other industries. The condensation method encountered in the industry is usually film condensation. The key to strengthening the heat transfer of film condensation is to accelerate the discharge of condensate and reduce the thickness of the liquid film. Because the vertical condenser has the advantages of small footprint and simple structure due to the convenience of pumping tube bundles (no need to set roller raceways), but when the arcuate baffle heat exchanger structure is used, the heat transfer coefficient of condensation on the shell side is obviously low It is limited in application to horizontal condensers. Contents of the invention [0003] The invention provides ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B1/00F28B9/08F28F9/22
Inventor 陈亚平张治林丽
Owner SOUTHEAST UNIV
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