JPH0229433Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an element of a laminated heat exchanger having a tube and a portion of a tube plate, respectively.

[Prior art and its problems]

Although conventional stacked heat exchangers have excellent assembly workability, they have the drawback of being restricted in the mounting positions of the inlet and outlet pipes for the heat exchange medium. In addition, with fin-and-tube heat exchangers, the installation positions of the heat exchange medium inlet and outlet pipes can be freely selected, but it requires a lot of man-hours to insert the inner fins into the tubes and to assemble the heat exchanger core. There were some important shortcomings.

[Purpose and structure of the invention] Therefore, the purpose of the present invention is to provide a heat exchanger element that has the advantages of both a fin-and-tube heat exchanger and a laminated heat exchanger, and its structure is as follows. It is.

That is, this element has a pair of half-flange groove-shaped bodies 3, 3, which are stacked in opposite directions so that their groove bottoms face each other. The flange 1 is then joined to the open end of the tank body 4.

Here, each of the half-flange groove-shaped bodies 3 is formed by bending a metal plate, and is formed in the shape of a groove having a flat bottom surface in the shape of a hat parallel to the width direction. At the same time, half-split flanges 1 are integrally formed at both ends in the longitudinal direction. moreover,
An edge 2 of the flange 1 is formed by bending parallel to the bottom surface of the groove.

[Example of idea]

Next, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view of a stacked heat exchanger using the elements of the present invention. Figure 2 shows a part of the elevation showing the assembled state, and Figure 3 shows the second
It is a sectional view taken along the - arrow in the figure.

As is clear from FIG. 1, this element has a pair of half-flange grooved bodies 3, 3, and an inner fin 6 is interposed between them. An outer fin 7 is interposed between each element.

Therefore, the half-flange grooved body 3 is formed by pressing a metal plate, and includes a linear groove 11 on a flat bottom surface and a longitudinal flange formed on an edge parallel to the longitudinal direction of the groove 11. 10 and is formed into a hat shape in cross section. And groove part 1
1. Flanges are raised at right angles to both ends.
An edge 2 parallel to the bottom surface of the groove 11 is bent at the edge of the flange 1. At the same time, caulking portions 5 are formed on both sides of the flange portion 1 to protrude by being bent in the opposite direction to the edge portion 2. The half-flange grooved body 3 is, for example, one whose inner and outer surfaces are clad with brazing filler metal in advance.

Thus, an inner fin 6 is interposed between the pair of half-flange grooved bodies 3, 3, respectively. The inner fins 6 may have a wave shape as shown in the figure, or may use various conventionally known fins, such as a multi-entry type or the like. An outer fin 7 is interposed between each element. The outer fin 7 is arranged so that the second heat exchange medium can flow in a direction perpendicular to the groove 11. Thus, the half-flange grooved bodies 3, 3 are overlapped, and each element is overlapped at the edge 2. At the same time, the opening flange 8 of the tank body 4 is brought into contact with the flange 1 of each element. Then, the caulked portion 5 is bent and assembled as shown in FIGS. 2 and 3. In this state, the entire structure is inserted into a furnace, and the brazing material is melted to complete the laminated heat exchanger. In the heat exchanger constructed in this manner, the first heat exchange medium flows from the pipe 9 of one tank body 4, flows inside the groove 11 of each element, and passes through the other tank body 4 to the pipe 9. flows out from. Then, the second heat exchange medium flows in a direction perpendicular to the first heat exchange medium, passing through the outer surface of each element and the surface of the outer fin 7. Then, heat exchange is performed between both heat exchange media.

[Modified example]

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and for example, the opening flange 8 of the tank body 4 and the flange 1 can be joined using an adhesive. Alternatively, the two may be joined by a caulking structure via a packing. Furthermore, instead of the caulking part 5 provided on the collar part 1 in FIG. 1, it may be provided on the opening flange 8 side of the tank body 4. Also, in the stacked state, the outermost half-flange grooved body 3
It is not necessary to provide the edge 2.

[Effect of idea]

The element of the present invention has the above configuration and has the following effects.

(1) This element consists of a pair of half-flange grooved bodies 3, 3.
Since these elements are stacked in opposite directions, each element forms a tube inside, and flanges 1 are formed at both ends in the longitudinal direction, and the element itself is a so-called tube plate. constitute the department. Therefore,
By stacking this element, a tube portion for heat exchange medium circulation and a tube plate portion can be formed at the same time. Therefore, the collar part 1
By liquid-tightly joining the opening edge of the tank body 4 to the tank body 4, it is possible to provide a heat exchanger that is easy to assemble. Moreover, since this element is of a laminated type, the inner fin 6 and the outer fin 7 can be easily interposed, and a heat exchanger with good heat dissipation performance can be provided.

(2) Even though it is a stacked heat exchanger, a separate tank body 4 is attached, so
The positions for installing the pipes 9 for heat exchange medium inflow and outflow can be freely provided, and a heat exchanger with high utility value can be provided.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a stacked heat exchanger using the elements of the present invention. FIG. 2 shows a part of the elevation showing the assembled state. Figure 3 is the second
It is a sectional view taken along the - arrow in the figure. DESCRIPTION OF SYMBOLS 1... Flange part, 2... Edge part, 3... Half-flange grooved body, 4... Tank body, 5... Caulking part, 6...
Inner fin, 7... Outer fin, 8...
Opening flange, 9... pipe, 10... longitudinal flange, 11... groove.

Claims (1)

[Scope of utility model registration request] Each is formed by bending and forming a metal plate, and is formed in the shape of a flat bottom groove whose cross section parallel to the width direction is a hat shape, and has half-split flanges 1 integrally formed at both ends in the longitudinal direction. A pair of half-flange grooves 3, 3 are formed in a protruding manner, and the edge 2 of the flange 1 is bent parallel to the bottom surface, and the groove bottoms of both the grooves 3, 3 are Elements of a laminated heat exchanger configured such that they are stacked in opposite directions to face each other, and the collar portion 1 is joined to the open end of the tank body 4.