JPS61130787A - Heat exchanger - Google Patents

Abstract

PURPOSE:To make it possible to manufacture the titled heat exchanger in one manufacturing step by bonding the vicinities of end portions of neighboring tubular bodies by means of connecting pipes to constitute tubular body groups, disposing a plurality of tubular body groups, and coupling communicating pipes of the plurality of tubular groups by means of a connecting pipe to form an integral body. CONSTITUTION:The diameter of each of communicating pipes 8 is made smaller than that of each of heat pipes 7. For instance, the communicating pipes 8 penetrate through the vicinities of the end portions of the heat pipes 7. The penetrating parts of the communicating pipes 8 are sealed by welding and the like. The communicating pipe 8 positioned in the heat pipe 7 is provided with communicating holes 8a. A plurality of heat pipes 7 are integrally coupled. Accordingly, when the steps of evacuation, pouring of a working liquid 9 and sealing thereof are carried out once from any one of tubular body groups consisting of a plurality of heat pipes 7, and communicating pipes 8, the tubular body groups are all subjected to evacuation, pouring of the working liquid and sealing thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a heat exchange device in which, for example, a plurality of tubes adjacent to each other constitute a tube group, and a plurality of tube groups are provided.

[Conventional technology]

FIG. 1 is a cross-sectional view of a main part of a conventional heat exchange device disclosed in, for example, Japanese Utility Model Application Publication No. 48-79442. flow path,
(3) is a partition plate that partitions both flow paths (υ, (2)). (4) is a tube body (hereinafter referred to as a heat pipe) consisting of a plurality of adjacent heat pipes. ), which penetrate through the partition plate (3) and are arranged in both channels Q) and (2). (6
) are fins provided on the heat pipe (4). (6) is a working fluid such as Freon or ammonia, which is sealed inside each heat pipe (4) after being vacuum decompressed.

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 retaining this latent heat moves inside the heat pipe (4) to the flow path (2) side of the low-temperature air. The vapor of the working fluid (6) inside the heat pipe (4) cooled by the low-temperature air flow path (2) condenses and flows into the low-temperature air flow path (2).
) The latent heat of condensation is released via the hefin (5).

The condensed working fluid (6) flows through the flow of hot air. It moves inside the heat pipe (4) to the 8(1) side and returns. 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. . Therefore,
After passing through the heat pipe (4) and fins (6), the high temperature air flow path (formerly, heat is removed and the temperature decreases and the temperature is cooled), and the low temperature air flow path (2) receives heat and the temperature decreases. It will rise and be heated.

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

This has the disadvantage that it requires a lot of effort to manufacture because it has to be manufactured through a hydraulic fluid injection process and a sealing process.

[Summary of the invention]

This invention was developed in order to eliminate the drawbacks of the conventional ones as described above, and consists of connecting the vicinity of the ends of adjacent tubes with a communicating tube to form a tube group, and also combining this tube group into multiple groups. By arranging and connecting the communicating tubes of these plurality of tube groups with connecting tubes to form an integrated structure, the tube group and the plurality of tube groups can be separated into two vacuum degassing steps, 9 working fluid injection steps, The present invention provides a heat exchange device that can be manufactured by a sealing process.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on Figure @2. In FIG. 2, (υ is a pipe body (hereinafter referred to as a heat vibe) consisting of a plurality of heat pipes adjacent to each other), Cs> is a communication pipe that communicates the vicinity of the end of these heat pipes (7), These heat pipes (7) are integrally connected and connected to form a tube group. (9) is a working fluid such as fluorocarbon or ammonia sealed in a vacuum degassing layer inside the tube group consisting of the heat pipe (7) and the communication tube (d). In addition, the pipe diameter of the communication pipe (8) is 1 Uhito Hype (7)
For example, the heat pipe (7) is smaller than the tube diameter of the heat pipe (7), and is provided so as to penetrate near a portion of the heat pipe (7), and the penetrating portion is sealed by welding or the like. A communication hole (8a) is provided in the communication pipe (8) located inside the heat pipe (7).
8), the plurality of heat pipes (7) are integrally connected. Therefore, if the vacuum degassing 9 working fluid injection and sealing process is performed once from any one point in the tube group consisting of multiple heat pipes (7) and 9 works (13), the entire tube group will be vacuum degassed. Air 9 Working fluid is injected and sealed.

Next, the operation will be explained. The fins (5) I, heat pipe (7), and communication tube (8) located in the high-temperature air flow path (1) are heated, and the working fluid (9) sealed inside them removes latent heat of vaporization. Vaporized, low-temperature air flow path (2
) side moves inside the heat pipe (7).The steam of the working fluid (9) inside the heat pipe (7) cooled by the low-temperature air flow path (2) releases the latent heat of condensation, condenses and liquefies, and returns to the high-temperature air. moves inside the heat pipe (7) to the flow path (1) side and returns.In this way, the working fluid (9) inside the tube group
By repeating vaporization and liquefaction, the high temperature air flow path (1
) # transfers heat to the low temperature air flow path (2) #.

Therefore, the fins (5), heat pipes (7), and communication pipes (
8), the high-temperature air flow path (1) is deprived of heat and cooled down, and the low-temperature air flow path (1) is cooled.
2) receives heat and its temperature rises, meaning that it is heated.

In the above embodiment, one end of the heat pipe (7) @l
Although the configuration includes a ζ communication pipe (8), a heat pipe (
7) It is also possible to provide it on the other end side or on both sides, and similar effects can be expected.

Further, although the above embodiments have been described with a configuration of a plurality of tube groups, the intended purpose can be achieved even with a single tube group.

Furthermore, as shown in FIG. 3, a heat pipe (7).

By arranging tube groups consisting of communicating tubes (8 membranes) in multiple groups and connecting the communicating tubes (8) of these multiple tube groups with connecting tubes QO to form an integrated configuration, these multiple groups can be integrated. The tube group can be vacuum degassed, injected with working fluid, and sealed using Ilg from one of the locations. In addition, the communication pipe Ql) is sufficient if at least one communication pipe (82 comrades) of each tube group is connected.

By the way, the heat exchange device according to the present invention can be widely applied to exhaust heat recovery systems, switchboard cooling systems, etc., and has extremely high economical effects fζ.

〔Effect of the invention〕

As described above, according to the present invention, the vicinity of the ends of adjacent tubes are connected by a communicating tube to form a tube group, and
A plurality of groups of tubes are arranged, and the communicating tubes of these plurality of tube groups are connected by a communicating tube to form an integrated structure.・It can be manufactured by sealing) and has the effect of being able to be manufactured at low cost and in a short period of time.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part showing a conventional heat exchange device, FIG. 2 is a sectional view of a main part of a heat exchange device according to an embodiment of the present invention, and FIG. FIG. 2 is a cross-sectional view showing a main part of a heat exchange device according to an embodiment. In the figure, (7) is a heat vibrator, (8) is a communication tube,
(8a) is a communication hole, (9) is a hydraulic fluid, and αQ is a communication pipe. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (4)

[Claims] (1) A heat exchange device characterized in that the vicinity of the ends of adjacent tube bodies are connected by a communicating tube to form a tube group, and the inside of this tube group is filled with a working fluid after vacuum degassing. . (2) The heat exchange device according to claim 1, wherein the diameter of the communicating pipe is smaller than the diameter of the tubular body. (3) The heat exchange device according to claim 1 or 2, wherein the communication pipe is provided to penetrate the pipe body, and a communication hole is provided in the communication pipe located inside the pipe body. (4) The vicinity of the ends of adjacent tube bodies are connected by a communicating tube to form a tube group, a plurality of these tube groups are arranged, and the communicating tubes of these plurality of tube groups are connected to each other by a communicating tube. 1. A heat exchange device characterized in that the plurality of tube groups are connected with each other to have an integrated structure, and a working fluid is sealed after vacuum deaeration of the plurality of tube groups.