CN207515576U

CN207515576U - A kind of square tube heat exchanger

Info

Publication number: CN207515576U
Application number: CN201720628811.5U
Authority: CN
Inventors: 王佐民; 李九如; 杨献亮
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2018-06-19
Anticipated expiration: 2027-06-02

Abstract

The utility model is related to a kind of square tube heat exchangers, square tube is connected to the tube bank formed between lower perforated plate, pipe in tube bank is evenly distributed with, identical into pitch between 45 degree of angular direction Guan Yuguan with heat exchanger symmetry axis, this pitch is minimum pitch, and wave side board section is into the fold-line-shaped of 90 degree of bent angles, broken line length is square tube minimum pitch, it is constant that wave side board cooperation square tube beam keeps constant heat exchanger fluid circulation area, so as to reduce flow resistance, and can enhance heat exchanger exchange capability of heat.

Description

A kind of square tube heat exchanger

Technical field

The utility model is related to field of heat exchangers.

Background technology

Power conservation requirement is being continuously improved at present, and heat exchanger is a kind of thermal energy exchange equipment, therefore efficiency of heat exchanger and section Energy property is also more and more important.At present, using round tube, heat exchanger tube mainly has in-line arrangement and mistake for pipe heat exchanger tube bank Row two kinds of forms of arrangement.The new type heat exchanger that the utility model is designed for staggered bank heat exchanger, heat exchanger use When round tube tube bank is staggered in arrangement, the flow resistance generated during transversal flow outside fluid hose is larger, for overcoming the power consumption of resistance It is larger, so as to produce the waste of the energy.Flow resistance can be reduced to realize energy-efficient pipe heat exchanger by being badly in need of one kind, and be adopted It is manufactured with square tube feasible on bank of staggered pipes heat exchanger technology.

Invention content

The purpose of this utility model is to provide one kind by reduce manage outer transversal flow flow resistance realize it is energy saving simultaneously And the square tube heat exchanger that exchange capability of heat is strong.

What the purpose of this utility model was realized in：Square tube heat exchanger designed by the utility model, with existing stagger arrangement The pipe heat exchanger of arrangement is different, and pipe is replaced using square tube, the square diagonal face fluid direction of flow of square tube, This direction and square tube outer surface are into 45 or 135 degree of angles；Into the fold-line-shaped of 90 degree of bent angles, broken line length is in wave side board section Square tube minimum pitch, it is constant that wave side board cooperation square tube keeps constant heat exchanger fluid circulation area, so as to reduce flowing resistance Power, solve thes problems, such as to be staggered in arrangement that wash away resistance on the outside of pipe heat exchanger pipe larger, and pipe medial and lateral heat exchange area It is bigger than round tube, heat exchanger is made to have the advantages that exchange capability of heat is strong.

Description of the drawings

Fig. 1 is square tube heat exchanger side view cutaway drawing；Fig. 2 is overlooks semi-cutaway；In figure：1. on 2. wave side board 3. of square tube 4. lower perforated plate of tube sheet.

Specific embodiment

For square tube 1 shown in figure using the identical square tube of sectional dimension, the tube bank that square tube 1 is formed is staggered in arrangement pitch Identical, a square diagonal face fluid direction of flow of square tube 1, another diagonal is vertical with direction of flow, square tube 1 By the tube outer surface of fluid transversal flow with direction of flow shown in arrow in figure into 45 degree or 135 degree of angles；Waveform side shown in Fig. 2 For the angle on the waveform side of plate 2 into 90 degree, 2 each fold-line-shaped length of wave side board is between the minimum tube hub that square tube 1 is restrained Away from gap size between guarantee wave side board 2 and square tube 1, gap size is identical between this gap size and square tube 1 and square tube 1； Upper perforated plate 3 shown in Fig. 1 and Fig. 2 and 4 trepanning of lower perforated plate are more bigger than Box Section size, this trepanning is used for across square tube 1.Described Square tube 1 and wave side board 2 are fixedly connected respectively by welding with upper perforated plate 3 and lower perforated plate 4.Pass through square tube as described above and side plate Arrangement keeps constant in heat exchanger fluid flow area constant, so as to reduce flow resistance realize it is energy saving.It is shown in figure Heat exchanger figure can also be rotated by 90 ° and become horizontal arrangement by vertical.

Claims

1. a kind of square tube heat exchanger, using the tube bank of square tube composition heat exchanger, for square tubes soldering between upper lower perforated plate, square tube is equal Cloth, identical into pitch between 45 degree of angular direction Guan Yuguan with heat exchanger symmetry axis, this pitch is minimum pitch, and the diagonal of pipe is just To fluid direction of flow, direction of flow and square tube outer surface are into 45 or 135 degree of angles；Wave side board section is into the broken line of 90 degree of bent angles Shape, broken line length minimum pitch between square tube, left and right wave side board and adjacent square tube spacing are equal to gap width between pipe, so as to make Heat exchanger fluid circulation area keeps constant constant.