JPS6149994A - Lamination type heat exchanger - Google Patents

Abstract

PURPOSE:To secure large effective heat exchanging area, improve heat exchanging performance and simplify the casing of heat exchanging section by a method wherein tube members are employed for outlet and inlet headers and the headers are arranged so as to penetrate respective plate tube elements in the air communicating area of the heat exchanger. CONSTITUTION:The headers 4, 5 are bored with communicating holes 6, communicating with the heat exchanging medium paths 2 of respective plate tube elements 1 while the headers 4, 5 are provided with partitioning plates 7 at the inside thereof. Heat exchanging medium flows into the heat exchanger from one end of the inlet header tube 5, flows upwardly through the heat exchanging medium paths 2 of the plate tube elements 1, 1, then flows reversely through the plate tube elements 1, 1 from the outlet header 4 to the inlet header tube 5 and flows out of the outlet header tube 4 under converting the flow direction thereof sequentially. Heat exchange may be effected during this period between the medium and air flowing between the plate tube elements 1, 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a laminated type 5, such as used as a natural light for a car cooler, for example; The plate-like tube elements of VJFJ
This relates to a Δ type heat exchanger.

Conventional Technology This type of laminated heat exchanger, called a doron cup type, generally consists of a plate-shaped tube element (11) made up of two dish-shaped molded plates facing each other, as shown in Fig. 5. They are stacked alternately through fins (12), and a bulge-shaped tank part (13> (14) are formed, and a heat exchange medium inlet pipe (15) J5 and an outlet pipe (1G) are connected to these tank parts, respectively (for example, Utility Model Publication No. 56-20766, 53-3238
No. 0). However, as described above, since the heat exchange section has the tank section (i3) (14) for storing the heat exchange medium at both ends, the air (A) circulates and the heat exchange I! Y! There was a point where the area in which it could effectively act was limited. That is, the fifth
As shown in the figure, there are ineffective parts (X) and (Y) where air does not flow throughout the tank part (13) (+4).
As a result, there was a problem in that the right-handling part (Y) of the p-p-d1 exchange became weak, reducing heat exchange performance (j-pi).

On the other hand, in the past, heat exchanger 1! in the tube element was used to solve this problem. l? ! There has also been a proposal to expand the effective heat exchange section by arranging a tank section only at one end of the heat exchange section by making the medium U-turn (Utility Model Publication No. 53-32375). However, even in this J platform, the occurrence of an ineffective part due to the tank part is unavoidable, and the problem described in j) η cannot be completely solved.

Problems to be Solved by the Invention The present invention aims to solve the above-mentioned problem, that is, the effective area for exchange is limited (due to the presence of the tank section located at the end). A heat exchanger that secures a large effective heat exchange area, improves heat exchange performance, and simplifies the casing of the heat exchange section]! /! The purpose is to provide equipment.

Means for Solving the Problems For the above-mentioned purpose, the present invention uses a pipe material for the inlet/outlet header, and arranges this pipe material in the air circulation area of the heat exchanger and penetrates each temporary duplex element. By doing so, a decrease in the effective heat exchange area due to the header is prevented,
In addition, the header avoids the formation of a protrusion outside the area of the plate-like tube element.

That is, the present invention provides a laminated heat exchanger in which a heat exchange section is formed by alternately stacking plate-shaped tube elements having heat exchange medium passages and fins.
3 and an outlet header pipe are disposed through each plate-shaped tube element within the air circulation area, and both header pipes and the heat exchange medium passage of each plate-shaped duplex element are connected in communication. The main topic is stacked heat exchangers.

Embodiment In the general view of the heat exchanger according to the present invention shown in FIG. 1, (1) is a plate-shaped tube element made of an aluminum roll bond panel, and (2) is a tube element formed inside this tube element. heat exchange medium passage, (3
) are corrugated fins stacked alternately with tube elements, (4) are outlet header pipes that are installed through the center of the upper part of each tube element, and (5) are installed through the center of the bottom of each tube element. This is the inlet header pipe.

Now, apply the anti-crimping agent to the two aluminum plates in the required pattern, and then crimp the tube element (1) (11 roll bond panels) together. By expanding the non-crimped portion using fluid pressure, a heat exchange medium passage (2) following the pattern 1) a is formed inside.

Therefore, in this embodiment, d5 has a heat exchange medium passage (2
) is a pattern in which a plurality of channels (2a) parallel to the vertical direction are arranged at the top and bottom of each channel and merge into f+iii, as shown in Fig. 3. )
<2b)
A portion (1a) of the collar that penetrates is formed protruding from both sides. In addition, both header pipes (4) and (5) are provided with circulation holes (6) that communicate with the heat exchange medium passages (2) of each plate-shaped tube element (1), as shown in FIG. Each has a predetermined number of tube elements (1)
A partition plate (7) is provided to change the flow direction of the heat exchange medium at each time and cause the medium to flow in a meandering manner throughout the heat exchanger.

The fins (3) are generally made of aluminum, and preferably have louvers cut and raised as shown in the figure.

In addition, the fins (3) are either cut out only at the portion through which the inlet/outlet header pipe (4) (5) passes, or are provided in two rows on the left and right, avoiding this portion.

In the above-mentioned 474-structure heat exchanger, the inlet header pipe (
5), the heat exchange medium flows in from one end, and if the drain plate (7) is arranged as shown in Figure 4, the heat exchange medium is first exchanged with the first two plate-like tube elements (1) (1). The medium flows upwardly in the heat exchange medium passage (2) and exits the outlet header tube (
4) and flows into the next two plate-like tube elements (1
) At (1), the flow reversely flows downward and flows into the inlet into the ladder pipe (5), and from then on, the flow continues in the same way in the opposite direction in a meandering manner, and finally flows out from the ladder pipe (4) to the outlet. be done. In the meantime, heat is exchanged between the air (Δ) flowing between the plate-like tube elements <1) and the heat exchange medium.

Here, in the above-described laminated heat exchanger according to the present invention, since both the inlet and outlet rotary header tubes (4) and (5) are made of tube material, even if these are located within the air circulation area, Despite this, its presence does not block the air flow. And, between the opposing surfaces of the adjacent plate-like tube elements (1) (1), there is a width of, for example, 5 to 7 m required for crimping in the rollpod panel.
There are fins (
3), normally more than 90% of the above opposing surface can be secured as an effective heat exchange area, whereas conventionally, at most 75 to 80%
This is a significant increase compared to only a small amount, and as a result, a remarkable increase in heat exchange performance can be achieved. Roughly speaking, since both the header pipes (4) (5') extend through each plate-like tube element (1) within the air circulation area, these themselves also function as heat exchange parts. By not forming a protruding part outside the surface area of the plate-like tube element (1), the casing of the heat exchanger can have a simple structure that is easy to manufacture, such as a rectangular parallelepiped in the embodiment configuration, and thus the heat exchanger It becomes possible to reduce the overall cost and make it more compact.
In particular, it can greatly contribute to improving space utilization efficiency in applications where installation space is limited, such as car coolers.

As is already clear from the above description, in the present invention, the heat exchange medium passages (2) of the plate-shaped tube element (1) can be formed in a pattern other than the illustrated one, and the inlet/outlet header tubes can be formed in accordance with this pattern. The arrangement positions of (4) and (5) can also be changed in various ways. However, both header pipes (4) (
It is not preferable to arrange the parts 5) in parallel along the flow direction of the air (A) because the air flow resistance becomes large in this part. In addition, in the illustrated embodiment, the tube element (1)
Although a case in which the heat exchange medium passage is formed by a roll bond panel is shown, the present invention is not limited to this, and it is also possible to use a structure in which the heat exchange medium passage is formed by combining two molded plates as in the past. Furthermore, although the illustrated laminated single-strip heat exchanger is shown as a set type, it is also a groove type in which Chicove elements 1 are arranged horizontally.4.1. Of course, it is also permissible to do S. The use of more roll bond panels has the following advantages: the pattern of the heat exchange medium distribution circuit can be set freely, and/or the number of parts required for assembling the heat exchanger can be reduced and the set time can be shortened. He is right-handed.

Achievements of the Invention This invention provides an inlet header J5 and an outlet header made of tubular materials, which are disposed through each plate-like tube element alternately laminated with fins in an air circulation area, so that the heat generated in the tube element is Since it is connected to the exchange medium passage, the presence of the header does not impede air circulation, and the effective heat exchange area can be secured over 90% of the opposing surfaces of the adjacent plate-like tube elements.
It is possible to significantly increase the heat exchange performance, and since these headers fit within the area of the plate tube elements and do not form any protruding parts, the heat exchanger casing can be constructed as a simple 41"1. This has the effect of reducing the overall cost of the heat exchanger by 1 to d5 and making it more compact.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a laminated heat exchanger according to the present invention, and FIG.
3 is a side view of the same, FIG. 4 is a schematic diagram showing a flow path of a heat exchange medium, and FIG. 5 is a perspective view of a conventional laminated heat exchanger. (1)...Plate tube element, (2)...First heat exchange body passage, (3>...Fin, (4)...Outlet header pipe, (5)...Inlet header Tube. That's all.

Claims (2)

[Claims] (1) In a stacked heat exchanger in which a heat exchange section is formed by alternately stacking plate-shaped tube elements having heat exchange medium passages and fins, an inlet header pipe and an outlet header pipe are used to air air across each plate-shaped tube element. A laminated heat exchanger characterized in that the header tubes are disposed through the flow area, and both header tubes and the heat exchange medium passages of each plate-shaped tube element are connected in communication. (2) The laminated heat exchanger according to claim 1, wherein the plate-like tube elements are formed of roll bond panels.