CN204786330U

CN204786330U - Two H type fin literal heat exchangers

Info

Publication number: CN204786330U
Application number: CN201520498291.1U
Authority: CN
Inventors: 万建
Original assignee: DUJIANG POWER EQUIPMENT FACTORY
Current assignee: China Electric Power Construction Group Dujiang Power Equipment Co. Ltd.
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2015-11-18
Anticipated expiration: 2025-07-10

Abstract

The utility model discloses a two H type fin literal heat exchangers, including a plurality of fins group and a plurality of U type heat exchange tube, every fin group is equipped with two pipeline jacks including the parallel two H type fins that align and distribute of multi -disc on every two H type fins, adjacent crisscross the arranging of fin group, and two pins of U type heat exchange tube are fixed respectively in two pipeline jacks of adjacent different fins group. The utility model discloses can make the air current intersect the vortex in the heat exchanger, reduce the heat exchanger scale under the reinforcing heat transfer ability, same operating mode, simultaneously, strengthened and erodeed the reposition of redundant personnel between the fin, increased the grey ability of boasting of heat exchanger, greatly alleviateed heat exchanger deposition problem.

Description

A kind of double H-type fin mistake row heat exchanger

Technical field

The utility model relates to boiler economizer in power plant and low-level (stack-gas) economizer technical field, is specially a kind of double H-type fin mistake row heat exchanger.

Background technology

Tradition double H-type fin tube heat exchanger can only carry out in-line arrangement layout usually due to reasons in structure, and as shown in Figure 1, Figure 2, Figure 3 shows, according to hydrodynamics and thermodynamic study, there are the following problems for in-line arrangement H type fin tube heat exchanger:

1, the disturbance of heat exchanger tube to air-flow is less, heating surface boast that grey ability is poor, and there is air-flow blind area, easily cause the stifled ash of heating surface area;

2, the exchange capability of heat of in-line arrangement arrangement heat exchanger is more weak, causes whole heat exchanger larger;

3, flow velocity is higher, and the wearing and tearing of heat-exchanging tube bundle are larger.

Utility model content

Be to provide a kind of exchange capability of heat for the problems referred to above the purpose of this utility model stronger, and can alleviate a kind of double H-type fin mistake row heat exchanger of heat exchanger dust stratification problem, technical scheme is as follows:

A kind of double H-type fin mistake row heat exchanger, comprise multiple fin group and multiple U heat exchange, each fin group comprises the double H-type fin of multi-disc parallel alignment distribution, every sheet double H-type fin is provided with two pipeline jacks, adjacent fin group is staggered, and two pins of U heat exchange are separately fixed in two pipeline jacks of adjacent different fin groups.

The beneficial effects of the utility model are: the utility model can make air-flow carry out intersection flow-disturbing in heat exchanger, strengthen exchange capability of heat, reduce heat exchanger scale under same operating mode; Meanwhile, the shunting between enhancing fin is washed away, and what add heat exchanger boasts grey ability, greatly alleviates heat exchanger dust stratification problem.

Accompanying drawing explanation

Fig. 1 is existing double H-type finned heat exchanger front view.

Fig. 2 is existing double H-type finned heat exchanger left view.

Fig. 3 is existing double H-type finned heat exchanger rearview.

Fig. 4 is the utility model double H-type fin mistake row heat exchanger front view.

Fig. 5 is the utility model double H-type fin mistake row heat exchanger left view.

Fig. 6 is the utility model double H-type fin mistake row heat exchanger rearview.

In figure: 1-U type heat exchanger tube; 2-fin group.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described further: as shown in Figure 4, Figure 5, a kind of double H-type fin mistake row heat exchanger, comprise multiple fin group 2 and multiple U heat exchange 1, each fin group 2 comprises the double H-type fin of multi-disc parallel alignment distribution, every sheet double H-type fin is provided with two pipeline jacks, adjacent fin group 2 is staggered, and two pins of U heat exchange 1 are separately fixed in two pipeline jacks of adjacent different fin groups 2.

During use, heat exchange air-flow enters from heat exchanger side, discharges after exchange heat from opposite side.As shown in Figure 4, two fin groups 2 and two U heat exchange 1 form a heat exchange unit, and two fin groups 2 are staggered, and the line of centres of two pipeline jacks of each fin group 2 and the acutangulate angle of airintake direction shape, preferred angle is 45 degree; Two pins of the U heat exchange 1 in left side are separately fixed in the pipeline jack on the left of two fin groups 2, and two pins of the U heat exchange 1 on right side are separately fixed in the pipeline jack on the right side of two fin groups 2.

To be arranged successively the heat exchanger formed by above-mentioned heat exchange unit, the pins of two adjacent row's U heat exchange 1 are staggered, and heat exchange air-flow can bifurcated flow-disturbing at heat exchanger, as shown in Figure 6.Which not only adds heat exchange area, enhance exchange capability of heat, substantially reduce the air-flow blind area in heat exchanger simultaneously, increase and boast grey ability, alleviate heat exchanger dust stratification problem.

Claims

1. a double H-type fin mistake row heat exchanger, comprise multiple fin groups (2) and multiple U heat exchange (1), each fin group (2) comprises the double H-type fin of multi-disc parallel alignment distribution, every sheet double H-type fin is provided with two pipeline jacks, it is characterized in that, adjacent fin group (2) is staggered, and two pins of U heat exchange (1) are separately fixed in two pipeline jacks of adjacent different fin groups (2).