CN102252557A

CN102252557A - Rectangular longitudinal fin heat exchange element

Info

Publication number: CN102252557A
Application number: CN 201110129604
Authority: CN
Inventors: 李本远; 孙永星; 徐吉田
Original assignee: Shandong Beichen Pressure Vessel Co Ltd
Current assignee: Shandong Beichen Pressure Vessel Co Ltd
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2011-11-23

Abstract

The invention belongs to a reinforcement heat exchange element that heat exchange media are not directly contacted, and particularly discloses a reinforcement heat exchange element which is suitable for two kinds of heat exchange media, namely gas and liquid. The rectangular longitudinal fin heat exchange element is characterized in that: at least three inner holes which pass through a whole core are distributed on the center line of the core with a rectangular section; at least three fins which are vertical to the long side of the section along the length direction of the core are uniformly distributed on two sides of the core respectively; and the core, fins and the inner holes are prepared from the same material through one-time rolling. The contour lines of the external ends of the fins are rectangular to ensure that when the reinforcement heat exchange element is used for assembling heat exchange equipment, the structure is compact; the external part is provided with a gas flow channel which has the characteristics of small resistance, and large heat exchange area; the inner holes which are positioned on the centre line of the core are used as liquid flow channels; and the whole heat exchange element is formed by one-time rolling and has the advantages of large loading capacity, and good heat transfer effect, and the same core is provided with a plurality of inner holes, so that the flow of liquid in the liquid flow channel is increased and the heat exchange efficiency is improved.

Description

Rectangle is indulged the fin heat exchange element

Technical field

The invention belongs to the reinforcement heat exchange elements that heat exchange medium does not directly contact, especially for the reinforcement heat exchange elements of gas and two kinds of heat exchange mediums of liquid.

Background technology

The heat exchange element that is used for gas and liquid at present is mainly heat pipe, wound finned tube, vertical finned tube.Though higher by the heat exchanger coefficient of heat transfer that heat pipe is formed, have that resistance is big, equipment volume is big, heat pipe is made complicated cost height, can not bear numerous shortcomings such as high pressure, heat pipe be fragile; Though wound finned tube is cheap, but its coefficient of heat transfer is too low, and resistance is eliminated too greatly gradually; Chinese patent CN2682368 discloses a kind of longitudinal finned tube smoke heat replacing device, and wherein heat exchanger tube is made up of interior pipe and fin, and the outer surface of interior pipe radially is evenly equipped with a plurality of fins radially; Each fin extends along the straight line that vertically carries out of interior pipe.Promptly on a parent tube, adopt whole rolling or welding to give off a plurality of vertical fins,, also have the lower shortcoming of bearing capacity simultaneously though this heat exchanger tube resistance is little, the coefficient of heat transfer is high.Along with development and national economy, increasing occasion needs the high gas-liquid heat exchange element of bearing capacity, for example mine laneway air cooling and dehumidifying, bioengineering compressed air cool-down dehumidification etc.

Summary of the invention

Low in order to overcome existing gas-liquid heat exchange component pressure ability, loosely organized deficiency the invention provides the vertical fin heat exchange element of a kind of rectangle, advantages such as the resistance that the vertical fin heat exchange element of this rectangle not only has vertical finned tube is little, easy cleaning, and improved bearing capacity, improved the coefficient of heat transfer.

The technical solution adopted for the present invention to solve the technical problems is: a kind of rectangle is indulged the fin heat exchange element, it is characterized in that: the cross section is to distribute at least 3 on the center line of core body of rectangle to run through the endoporus of core body total length, the core body both sides be uniform-distribution with respectively at least 3 with long limit, cross section vertical with the consistent fin of core body length direction, to be that commaterial is once rolling form for core body, fin, endoporus.

The outer end outline line of described fin is a rectangle.

Described endoporus distributes at the core body kernel of section, and its cross section is circular or oval.

The vertical fin heat exchange element of rectangle disclosed by the invention adopts that commaterial is once rolling to form, its fin outer end outline line is rectangular, use its compact conformation when the assembling heat transmission equipment, its outside is a gas flow, having resistance is little, heat exchange area is big characteristics, endoporus is positioned at and is flow channel for liquids on the core body center line, since whole heat exchange element is once rolling form have the bearing capacity height, advantage that heat-transfer effect is good, there are a plurality of endoporus can increase the flow of liquid in the flow channel for liquids on the same core body, improve heat exchange efficiency.

The invention has the beneficial effects as follows: owing to adopt the vertical fin design of rectangle to have the benefit that compact conformation, resistance are little, increase the atmospheric side heat exchange area; Have a plurality of minor diameter through holes owing to adopt on the main body, can guarantee that fluid passage bears higher operating pressure, even more than the 10Mpa, a plurality of flow channel for liquids are participated in heat exchange directly simultaneously, can make liquid absorb heat rapidly, improve heat exchange efficiency.

Description of drawings

Fig. 1 is a sectional view of the present invention,

Among the figure: 1. fin, 2. core body, 3. endoporus.

The specific embodiment

The specific embodiment of the present invention is, as shown in the figure:

Embodiment 1, a kind of rectangle is indulged the fin heat exchange element, it is characterized in that: the cross section is to distribute 10 on the center line of core body 2 of rectangle to run through the endoporus 3 of core body total length, the core body both sides be uniform-distribution with respectively 6 with the vertical consistent fin 1 in long limit, cross section with the core body length direction, to be that aluminium alloy is once rolling form for core body, fin, endoporus.The outer end outline line of fin is a rectangle.Inner hole section is circular.The vertical fin heat exchange element of rectangle adopts that commaterial is once rolling to form, and its fin outer end outline line is rectangular, is gas flow, has resistance is little, heat exchange area is big characteristics, endoporus and is positioned at and is flow channel for liquids on the core body center line.

Embodiment 2, a kind of rectangle is indulged the fin heat exchange element, it is characterized in that: the cross section is to distribute 18 on the center line of core body 2 of rectangle to run through the endoporus 3 of core body total length, the core body both sides be uniform-distribution with respectively 13 with the vertical consistent fin 1 in long limit, cross section with the core body length direction, to be that commaterial is once rolling form for core body, fin, endoporus.The outer end outline line of fin is a rectangle.Inner hole section is oval.The vertical fin heat exchange element of rectangle adopts that commaterial is once rolling to form, and its fin outer end outline line is rectangular, is gas flow, has resistance is little, heat exchange area is big characteristics, endoporus and is positioned at and is flow channel for liquids on the core body center line.

Claims

1. a rectangle is indulged the fin heat exchange element, it is characterized in that: the cross section is to distribute at least 3 on the center line of core body of rectangle to run through the endoporus of core body total length, the core body both sides be uniform-distribution with respectively at least 3 with long limit, cross section vertical with the consistent fin of core body length direction, to be that commaterial is once rolling form for core body, fin, endoporus.

2. rectangle according to claim 1 is indulged the fin heat exchange element, it is characterized in that: the outer end outline line of described fin is a rectangle.

3. rectangle according to claim 1 is indulged the fin heat exchange element, it is characterized in that: described endoporus distributes at the core body kernel of section, and its cross section is circular or oval.