CN201819611U - Heat exchanger - Google Patents

Abstract

The utility model discloses an improved heat exchanger; and an expansion joint is installed on a panel for eliminating the thrust force caused by heat expansion of the heat exchange chipand the panel inside the heat exchanger, thereby preventing the panel from being damaged and prolonging the service life of the heat exchanger.

Description

A kind of heat exchanger

Technical field

The utility model relates to a kind of heat exchanger, and definite says, is a kind of heat exchanger that adopts the panel of brand-new design.

Background technology

Can produce a large amount of heats at engineering machinery its power-equipment in service, and make himself temperature rising, long-play can cause power-equipment to burn.For guaranteeing its normal operation,, install heat exchanger additional and discharge the heat that produces generally at the power-equipment place.

In general, heat exchanger comprises that core body and the panel be made up of some heat exchange chips form, and a side of core body contacts with lower panel, and the heat exchange chip is stacked setting, on the heat exchange chip top panel is set, and the edge of upper and lower panel is provided with side plate.

Traditional heat exchanger at work, near the heat exchanger internal layer heat exchange chip of thermal source since with the thermal source close together, its temperature is compared with the temperature of panel surface, has the big temperature difference.In general, both temperature difference can reach 50 ℃.So, it is inconsistent that the degrees of expansion of heat exchange chip and panel occurs, thus at work panel just be subjected to fin continue outwards push, panel surface is also because the strength that the also generation of expanding with heat and contract with cold is outwards pushed simultaneously; These strength of pushing are all concentrated on 4 angles of panel, and so the corner part of panel is very easily damaged.How to solve because the panel breakage that causes of being heated is a problem demanding prompt solution in this area.

The utility model content

The purpose of this utility model is to provide a kind of improved heat exchanger, and it prolongs the heat exchanger life-span by being provided with the expansion joint in order to eliminate the pushing force of the counter plate that produces because of the heat exchanger expanded by heating on panel.

The concrete scheme of the utility model is as follows:

A kind of heat exchanger comprises the heat exchange chip, and described heat exchange chip laminate is provided with forms the heat exchange body, in external week of heat exchange panel is set, and also comprises the expansion joint, and described expansion joint is arranged on the upper and lower panel of heat exchanger.

As a kind of improvement of the present utility model, described expansion joint is provided with 2 at least, and width is 3.2mm.

The utility model it is advantageous that than prior art its effect is obvious, implements also very convenient.

Description of drawings

Fig. 1 is the utility model front view

Wherein 1-heat exchange chip, 2-panel, 3-dividing plate, 4-expansion joint.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

The utility model relates to a kind of heat exchanger of improvement, the utility model provides a kind of heat exchanger, comprise the heat exchange core body that combines by a plurality of heat exchange chips 1, and be wrapped in the outer panel 2 of heat exchange core body, the 1 stacked setting of heat exchange chip is being provided with dividing plate 3 to guarantee air proper flow between core body between the heat exchange chip.

Heat exchange chip 1 is an aluminum, cross sectional shape is a zigzag, in heat exchange chip 1 side some projectioies are set, described projection is crisscross arranged on heat exchange chip 1 both sides, become wavy arrangement, this projection is vertical with the gas flow direction of heat exchange chip 1 both sides, when gas is along heat exchange chip two side flow like this, be easy to generate eddy flow, the rib sill of projection make gas rotate, make heat exchange chip 1 constantly exchange with gas at a distance nearby, also destroyed the boundary layer of gas flow simultaneously, improved heat dispersion greatly.

On heat exchanger, also be provided with expansion joint 4, expansion joint 4 be arranged on heat exchanger on, on the lower panel, width is approximately 3.2mm, behind heat exchange chip expanded by heating, produced the strength of outwards pushing, strength finally concentrates on the panel of side, owing to be provided with the expansion joint, the side panel can be subjected to displacement to the outside, thereby dissolved pushing force, simultaneously, because the existence at expansion joint can be stretched in the expansion joint behind the upper and lower panel expanded by heating, and can not produce the extra strength of pushing, so, the pressure that is subjected to of the corner part of panel reduces greatly, and the panel life-span greatly prolongs.

In the utility model, described expansion joint is provided with 4, and specifically, upper and lower panel respectively is provided with 2, and the expansion joint is 38.1mm apart from the distance of face plate edge.

Claims (2)

1. heat exchanger, comprise that cross sectional shape is zigzag heat exchange chip, described heat exchange chip laminate is provided with forms the heat exchange body, between the heat exchange chip, dividing plate is set, periphery at the heat exchange body is provided with panel, it is characterized in that: also comprise the expansion joint, described expansion joint is arranged on the upper and lower panel of heat exchanger.

2. a kind of heat exchanger according to claim 1 is characterized in that: described expansion joint is provided with 2 at least, and width is 3.2mm.

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