JPS61130785A - Heat exchanger - Google Patents

Abstract

PURPOSE:To make it possible to manufacture a plurality of tubular body groups by one manufacturing process by bonding a plurality of neighboring tubular bodies to each other by communicating headers and bonding these communicating headers by communicating pipes to constitute an integral body. CONSTITUTION:Communicating headers 8 constitute a plurality of tubular body groups by integrally communicating and bonding heat pipes 7. The communicating headers 8 of the tubular body groups are integrally bonded by a connecting pipe 9. A working liquid 10 such as flon,, ammonia or the like is sealed into the plurality of the tubular body groups consisting of heat pipes 7 and communicating headers 8 after being evacuated and deaerated. Further, when the steps of evacuation, pouring of the working liquid and sealing thereof are carried out once from any one place of the plurality of the tubular body groups consisting of a plurality of heat pipes 7 and communicating headers 8, the tubular body groups are all subjected to evacuation, pouring of the working liquid and sealing thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION In this heat exchanger #1, a tube group is constituted by, for example, a plurality of tube bodies adjacent to each other, and a plurality of tube groups are provided.
, it is related to.

[Conventional technology]

FIG. 1 is a cross-sectional view of the main parts of a conventional heat exchange device disclosed in, for example, Japanese Utility Model Application Publication No. 48-79442. The flow path (3) is a partition plate that partitions both flow paths (υ, (2)). (4) is a tube body (hereinafter referred to as It is a group of tube bodies composed of heat pipes (referred to as heat pipes), and is arranged in both flow paths (1) and (2) through the partition plate (3). (6
) is a fin, and the heat pipe (4) has a large diameter. (6) A working fluid such as la Mituron ammonia is sealed in each heat pipe (4) after its internal Eζ vacuum is depressurized.

Next, the operation will be explained. One of the heat pipe (4) and fins (5) provided in the high-temperature air flow path (1) is heated, and the working fluid (6) sealed inside the heat pipe (4) is vaporized. At this time, the latent heat of vaporization is taken away from the high-temperature air, and the steam that retains this latent heat is transferred to the flow path of the low-temperature air (
2) Move inside the side heat pipe (4). The vapor of the working fluid (6) inside the heat pipe (4) cooled by the low temperature air flow path (2) condenses and releases latent heat of condensation through the fin (5) to the low temperature air flow path (2). do. The condensed working fluid (6) moves inside the heat pipe (4) and returns to the high temperature air flow path (1) side. In this way, by repeatedly vaporizing and liquefying the working fluid (6) inside the heat pipe (4), heat is transferred from the high temperature air flow path (1) side to the low temperature air flow path (2) side. , hence the heat pipe (
4), after passing through the fins (5), the high temperature air flow path (1
) is deprived of heat, its temperature drops and is cooled, and the low temperature air flow path (2) receives heat and becomes heated.

Since the conventional heat exchange device is configured as described above, a vacuum degassing process is performed for each heat pipe (4).

It has to be manufactured through a hydraulic fluid injection process and a sealing process, so it has the disadvantage that the manufacturing process is time-consuming.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional ones, and consists of connecting a plurality of adjacent tube bodies with a communication header to form a plurality of tube groups, and By connecting the communication headers with each other with a communication pipe and constructing an integrated structure, a plurality of pipe groups can be removed in two vacuum degassing steps 15.
Hydraulic fluid injection process.

The present invention provides a heat exchange device that can be manufactured by a confining process.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. 2 and FIG. 8 Iζ.

In each of these figures, (7) is a tube body consisting of a plurality of heat pipes adjacent to each other (hereinafter referred to as heat pipes).
, (8) is a communication header that communicates these heat pipes (7), and these heat pipes (7) are integrally connected and connected to form a plurality of tube groups. (9) is a communication header (g) for a plurality of tube groups, (s) is a communication pipe that connects them together, QQ is a working fluid such as fluorocarbon or ammonia, and there is a heat pipe (7), a communication header (8) A vacuum degassing layer is placed inside a group of tubes consisting of iζ.

In addition, if the vacuum degassing 9 working fluid injection and sealing process is carried out at any one of the plurality of tube groups consisting of the plurality of heat pipes (7) and communication headers (8), All tube groups are vacuum degassed, hydraulic fluid is injected, and sealed.

Next, the operation will be explained. The fins (5), heat pipes (7), and communication headers (8) located in the high-temperature air flow path (1) are heated and the working fluid Q sealed inside them is heated.
O absorbs the latent heat of vaporization and evaporates, creating a flow path for low-temperature air (2) #
It moves inside the heat pipe (7). Working fluid α inside the heat pipe (7) cooled by the low-temperature air flow path (2)
The steam of the working fluid αq releases the latent heat of condensation, condenses and liquefies, and moves back inside the high-temperature air flow path (υ side heat pipe (7)).In this way, the steam of the working fluid αq inside the plurality of tube groups By repeating liquefaction and liquefaction, heat is transferred from the high-temperature air flow path (1) to the low-temperature air flow path (2).

When the communication header (8) is connected, the high-temperature air flow path (υ) is deprived of heat and its temperature decreases and is cooled, while the low-temperature air flow path (2) receives heat and becomes heated. become.

In the above embodiment, the communication tube is provided at one end of the heat pipe, but it may also be provided at the other end of the heat pipe, and similar effects can be expected.

By the way, the heat exchange device according to the present invention can be widely applied to exhaust heat collection systems, switchboard cooling systems, etc., and has very high economic effects.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of tube bodies that are adjacent to each other are connected by a communication header to form a plurality of tube body groups, and the communication headers of these plurality of tube body groups are connected together by a connection pipe to form an integral body. Because of this structure, multiple tube groups can be manufactured in one manufacturing process (vacuum degassing, hydraulic fluid injection, and sealing pressure), resulting in the effect of being able to be manufactured at low cost and in a short period of time.

[Brief explanation of drawings]

Figure 1 is a sectional view of a main part showing a conventional heat exchange device, and Figures 2 and 8 are a sectional view and a side sectional view of a main part showing a heat exchange device according to an embodiment of the present invention. be. In the figure, (7) is a heat pipe, (8) is a communication header, and (9J is a communication pipe or hydraulic fluid.) In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A plurality of tube groups constituted by connecting a plurality of adjacent tube bodies with a communicating header, and connecting the communicating headers of each of these plural tube groups with a communicating tube to form an integrated structure, A heat exchange device characterized in that the inside of a group of tubes is vacuum-depressurized and then a working fluid is sealed.