JPS6210593A - Heat exchanger - Google Patents

Abstract

PURPOSE:To facilitate the connection of heat exchangers by providing the outlet opening with a connector having a projection and a depression to which heat exchangers are connected. CONSTITUTION:Connectors 13 are disposed at necessary positions on the gas outlet side of a heat exchanger such as corners and center part where the plate 8 is overlapped, and the connectors 13 have a depression 13a and a projection 13b. The other heat exchanger HE' has connectors 13' having a projection 13b' and a depression 13a' which fit in the depression 13 and projection 13b of the former heat exchanger HE so that the heat exchangers HE, HE' may be connected with their outlets facing each other. By this connecting structure, a heat exchanger can be provided which can save space and significantly improve the heat exchanging efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat exchanger aimed at improving heat exchange efficiency.

[Conventional technology]

FIG. 5 is a schematic diagram of a conventional cross-flow heat exchanger, in which a plurality of plates 21 are laminated via fins (not shown) in which ventilation holes are formed at required intervals, and -flame i(' It is structured so that the % line arrow) and the secondary airflow (intention arrow) flow alternately in a straight line.

One way to improve the heat exchange efficiency of a heat exchanger with such a configuration is to use a plurality of heat exchangers connected together, but in the case of the heat exchanger shown in FIG. As shown in the figure, for example, when connecting two heat exchangers, the side plates 22 are used to connect them, so the configuration must be such that fluid does not flow to the other side. The triangular space 23 formed by 22 and 22 does not contribute to any improvement in heat exchange efficiency, and has the disadvantage that it cannot be laid out for the purpose of space saving.

Moreover, what is shown in FIG. 3 is a perspective view showing an example of a heat exchange element constituting a heat exchanger previously proposed by the present applicant. This heat exchange element first uses multiple parallel beams of light to control the flow! I? af&: A plate 8 that partitions two air streams to be heated is fixed to the upper and lower sides of the wavy fin 7 to be formed using adhesive or the like. Next, in order to give a distribution of static pressure loss in the fin 7 portion, one end is cut perpendicularly to the parallel flow path 7aVC, and the other end is cut diagonally. Finally, a spacer 9 with an airflow guide function on the other end cut diagonally.
are fixed with adhesive or the like to complete the heat exchange element 10.

The thickness of the spacer 9 must be precisely aligned with the fin 1 sandwiched between the two plates 8. Further, when the number of laminated stages, that is, the number of layers, is 100 or more, a well-shaped heat exchanger cannot be obtained unless the spacers 9 have the same thickness. A commercially available adhesive is used to fix the spacer 9.

Next, FIG. 4 shows a perspective view of a heat exchanger HE in which a unit heat exchange section 12 having a trapezoidal cross-sectional shape is laminated on the heat exchange element 101 of FIG. 3. In the figure, &, 1' represent the inlet and outlet of the single flame flow M. I'll see you again.

b' represents the inlet and outlet of the two flames KN.

The heat exchange element 10 has a trapezoidal shape with the short side at the rear, and the static pressure loss in the fin portion is greatest on the front side.
Go later (becomes smaller. Therefore, Qi KM, N is Fin 7
At n, as shown by the arrow in the figure, a flow velocity distribution is formed in which the static pressure loss is concentrated at the rear side where the loss is small, and the adjacent plate 8
．． The hollow part 11Vc formed between the air outlets a1 and 8 is also concentrated on the rear side as shown by the arrow, and smoothly moves along the spacer 9 that has an airflow guide function. bl is derived.

[Problem that the invention seeks to solve]

In the heat exchanger 1-IE with the above configuration, when two heat exchangers are to be connected directly to improve heat exchange efficiency, there is no connecting means and it is easy to connect them. I couldn't do that.

This invention was made to solve the above-mentioned problems, and is designed to facilitate the connection of heat exchangers.

[Means for solving problems]

In the heat exchanger according to the present invention, when the gas outlet portions of two heat exchangers are joined to face each other, a fitting member having a concave and convex portion where both heat exchangers are brought together and connected is provided with the heat exchanger. It is installed at a predetermined location on the outlet side of the exchanger.

[Effect]

In this invention, the reheat exchanger can be connected extremely easily, and most of the occupied space can be constituted by the heat exchange element.

〔Example〕

FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.
The figure is a top view of the heat exchanger KW mating member attached, and FIG. 2 is a top view of the two heat exchangers of FIG. 1 connected.

In these figures, HE is a heat exchanger similar to that shown in FIG. 4, consisting of a combination of unit heat exchange sections 12, and one heat exchanger HEK is connected as shown in FIG. 1, for example. An overlapping part 11Cwk mating member 13 is provided in which the plates 8 are laminated at required locations on the joint end face of the heat exchanger, that is, on the gas outlet side of the heat exchanger, for example, the corners and the central part. (3a, a convex portion 13b is provided.

In addition, the other heat exchanger Hb has the convexes and concave portions 13b of the fitting member 1i that are fitted in correspondence with the concave and convex portions 13m and 13bK of the fitting member 13 provided in the heat exchanger Hf-. ; 131' is thrown, and the two heat exchangers HE, H are connected as shown in FIG.
E' is connected so that the gas outlet portions face each other. In addition, 1
4 is a fixing member of the heat exchanger.

According to such a connection structure, a heat exchanger can be obtained that does not waste space and has significantly improved heat exchange efficiency.

〔Effect of the invention〕

As explained above, in this invention, fitting members are provided at predetermined locations on the gas outlet side of the reheat exchanger, so that if the gas outlet parts of the reheat exchanger are faced and joined, both sides can be connected. The provided fitting members are connected to each other and the two temperature exchangers are connected.

Therefore, most of the occupied space can be made up of heat exchange elements, and wasted space can be eliminated.
It has the advantage of saving space by 7 watt hours per hour and greatly improving heat exchange efficiency.

[Brief explanation of drawings]

FIG. 1 is a top view of a heat exchanger showing one embodiment of the present invention;
Figure 2 is a top view of the 10,000 heat exchanger before connection, Figures 3 and 4 are perspective views of the st exchange element and the heat exchanger previously proposed by the applicant, and Figure 5. 6 is a top view of a conventional heat exchanger, and FIG. 6 is a top view showing a state in which the heat exchanger of FIG. 5 is connected. In the diagram, HE, Hε' is a heat exchanger, 13.13' is a fitting member, 13a * 13m' is a recess, 13b, 13b'
is a convex part. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa (2 others) Figure 1 Figure 2 1 person Figure 3 Figure 5

Claims (1)

[Claims] One unit heat exchange section is formed by laminating a plurality of plates sandwiching fins with ventilation holes arranged in parallel at one end of each plate with a spacer interposed therebetween, and each space of this unit heat exchange section without the spacer interposed therebetween. A heat exchanger is constructed by fitting one end of the plate of the other unit heat exchanger into the end portion, and when the two heat exchangers are joined with their fluid outlet portions facing each other, the two heat exchangers are connected. A heat exchanger characterized in that fitting members into which the containers are fitted and connected are provided corresponding to predetermined locations on the outlet side of each of the heat exchangers.