CN2222894Y

CN2222894Y - High-efficiency unit type heat exchanger

Info

Publication number: CN2222894Y
Application number: CN 95206479
Authority: CN
Inventors: 黄坤
Original assignee: HAOWEI CENTRAL WATER HEATING EQUPMENT CO Ltd GUANGZHOU
Current assignee: HAOWEI CENTRAL WATER HEATING EQUPMENT CO Ltd GUANGZHOU
Priority date: 1995-03-28
Filing date: 1995-03-28
Publication date: 1996-03-20
Anticipated expiration: 2005-03-28

Abstract

The utility model relates to a high-efficiency unit type heat exchanger, comprising an outer tube and an inner tube. The outer wall and the inner wall of the inner tube form a spiral waviness, and the tube walls of the outer tube and the inner tube are respectively provided with a fluid inlet and a fluid outlet. The fluid inlet of the inner tube is fixed with a guide plate, and the separation angle of the guide plate and the horizontal line is controlled between thirty degrees and sixty degrees. The heat exchanger can carry out multiple combinations according to the requirement of heat transfer and has the advantages of compact structure, no fine tube bank, easy manufacture, easy maintenance and easy use.

Description

Efficient unit heat-exchanger

The utility model relates to a kind of heat exchanger, can be used for the heat exchange between water-water, water-vapour, the vapour-vapour.

Existing heat exchanger kind is more, for example shell-and-tube (shell and tube, coiled); Jacket type (bushing type, socketed cup type); Board-like (flat, corrugated plate dst, spiral plate type) or the like,, these heat exchangers remain in some shortcomings, for example: though jacket type is simple in structure, are easy to produce, be convenient to maintenance, but heat transfer efficiency are lower, bulky; The volume of shell-and-tube is relatively littler, produce, cleaning is more convenient, but the thermal efficiency is not high enough; Though board-like have a higher heat transfer efficiency, structure is also compact, and floor space is little, more complicated, and cleaning and maintenance are very difficult, therefore are necessary to provide a kind of novel heat exchanger.

The purpose of this utility model provide a kind of simple in structure, compact, be convenient to produce maintenance, thermal efficiency height, the heat exchanger of use capable of being combined.

For achieving the above object, the utility model adopts following structure: it comprises outer tube, interior pipe, the outer wall of interior pipe and inwall are corrugated in the shape of a spiral, have fluid inlet and outlet on the tube wall of outer tube, interior pipe, interior pipe fluid import department is fixed with guide plate, and guide plate and horizontal line angle are between 30 °～60 °.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1: efficient unit heat-exchanger structural representation

Fig. 2: fluid inlet place guide plate scheme of installation

Among Fig. 1, Fig. 2,1 is outer tube, and 2 is interior pipe, the inwall of interior pipe, outer wall be bellows-shaped in the shape of a spiral all, has fluid inlet 5, outlet 7 on outer tube, and be same, having fluid inlet 6 on the inner sleeve, exporting 3,4 is the end socket of outer tube, can adopt screw thread, flange to connect, 9 is window, among the figure, the horizontal line angle of guide plate 8 and interior pipe is controlled between 30 °～60 °, is preferably 45 °, guide plate can make fluid produce rotation, flows along the screw thread ripple.

During operation, make heat (fluid) medium enter chuck, promptly make rotational flow along the helical corrugation on the outer wall of inner tube, cold medium enters interior pipe, and for the helical movement along inner tube wall, and cold and hot medium is done heat exchange on bellows wall.

This heat exchanger can be made a plurality of strings as required and connect, and at its outside dress heat-insulation layer and shell, not only attractive in appearance but also increase heat insulation effect, to satisfy the heat exchange needs.

The utility model advantage: the structure compactness, easily processing and manufacturing, owing to adopt bellows-shaped, heat is handed over Change effectively, no tiny comb in the interchanger is easy to keep in repair, and can carry out a plurality of combinations according to the heat transfer needs Use.

Claims

1, a kind of efficient unit heat-exchanger, it is characterized in that it comprises outer tube (1), interior pipe (2), the outer wall of interior pipe and inwall are corrugated in the shape of a spiral, have the fluid import and export on the tube wall of outer tube (1), interior pipe (2), the fluid inlet place is fixed with guide plate (8), and guide plate and horizontal line angle are between 30 °～60 °.

2, by the described efficient unit heat-exchanger of claim 1, it is characterized in that described guide plate and horizontal angle are 45 °.