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Heat exchanger plate, and plate heat exchanger

A plate heat exchanger and heat exchanger technology, applied in heat exchange equipment, heat exchanger types, indirect heat exchangers, etc., can solve the problems of heat transfer pressure drop and high flow resistance, and achieve the effect of small flow resistance

Pending Publication Date: 2021-11-19
ALFA LAVAL CORP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively high theta patterns create more turbulence and thus more heat transfer, higher pressure drop and higher flow resistance

Method used

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  • Heat exchanger plate, and plate heat exchanger
  • Heat exchanger plate, and plate heat exchanger
  • Heat exchanger plate, and plate heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 with figure 2 A plate heat exchanger is disclosed comprising a plurality of first heat exchanger plates 1 and a plurality of second heat exchanger plates 2 arranged next to each other in an alternating sequence in the plate heat exchanger.

[0042] Plate heat exchangers can be configured to operate as evaporators or condensers. However, plate heat exchangers can also be used in other heat exchange applications. In the embodiments discussed below, the plate heat exchanger is configured to operate as an evaporator.

[0043] Each of the first heat exchanger plate 1 and the second heat exchanger plate 2 extends parallel to the extension plane p.

[0044] The first heat exchanger plate 1 and the second heat exchanger plate 2 are arranged side by side such that a first plate interspace 3 for the first fluid and a second plate interspace 4 for the second fluid are formed.

[0045] In evaporator applications of the disclosed embodiments, the first fluid may be a h...

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PUM

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Abstract

A plate heat exchanger comprises a heat exchanger plate (1) having a quadrilateral shape with two opposite primary sides (5) and two opposite secondary sides (6), and a longitudinal central axis (x) being parallel with the primary sides.Theheat exchanger plate comprises a heat exchanger area (7) having a corrugation of ridges (8) and valleys (9). Four porthole areas (14) arelocated at a respective corner of the heat exchanger plate and each comprisesa respective porthole (15) extending through the heat exchanger plate. An edge area (16) extendsaround and adjoins the heat exchanger area and the porthole areas. The heat exchanger area comprises a main area and a local part area extending along one of the primary sides and adjoining the edge area and one of the porthole areas. The valleys of the local part area are tapering towards the longitudinal central axis. (Fig 6).

Description

technical field [0001] The invention relates to a heat exchanger plate according to the preamble of claim 1 . The invention also relates to a plate heat exchanger according to the preamble of claim 11 . Background technique [0002] In plate heat exchangers eg for air conditioning applications it is difficult to obtain a sufficient flow of the heat transfer medium, such as water, around the closed orifice area next to the orifice area forming the inlet for the heat transfer medium. The heat transfer medium flowing around the closed orifice area encounters an excessively high flow resistance when entering the heat exchanger area. This may be due to the relatively high theta (theta) pattern of the heat exchanger area, ie the pattern of corrugations which may have a large so-called herringbone angle or inclination relative to the longitudinal center axis of the heat exchanger plate. A relatively high Θ pattern creates more turbulence, and thus more heat transfer, higher press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/04
CPCF28F3/046F28D9/005F28D9/00F28F13/08F28F3/08
Inventor J·古斯塔夫松
Owner ALFA LAVAL CORP AB