JPS59147990A - Lamination type heat exchanger - Google Patents

Abstract

PURPOSE:To produce the lamination type heat exchanger which is simple in structure and which has three-layer helical fluid flow passage by a method wherein fluid flow passages are formed within each of flat plates and the flat plates are laid one above another integrally so that two fluid flow passages which are in thermal contact with each other are formed. CONSTITUTION:The fluid flow passages B1 and B2 and the fluid flow passages C1 and C2 within the plate A communicate with each other, respectively, the fluid flow passages A'1 and A'2 and the fluid flow passages C'1 and C'2 within the plate B communicate with each other, respectively, and the fluid flow passages A''1 and A''2 and the fluid flow passages B''1 and B''2 within the plate C communicate with each other, respectively. However, the above pairs of passages are separated from one another. In case where the above-mentioned basic plates are laid one above another in a predetermined order, the passages within the plate A may communicate with those within another plate A through the passages within the plate B or C and may further communicate with those witin a still lower plate A in series in a helical fashion. The same thing can be said about the passages within the plates B and C. For instance, it is possible to form a three-layer heat exchanger having such structure that the passages within the plate B lie below the plate A and the passages within the plate C lie above the plate A.

Description

[Detailed Description of the Invention] Industrial Fields of Application The present invention is applicable to heat exchange fields such as air conditioning, refrigeration, solar heat utilization, food processing, and chemical industries, and is mainly applicable to heat exchange between liquid-liquid regions or gas-liquid two-phase flows. This article relates to laminated heat exchangers.

Conventional structure and its problems In a three-layer linear heat exchanger as shown in Figure 1, if the pipe cross section is sufficiently flat and rectangular, a large heat transfer area can be secured relative to the fluid flow path cross section. , is an ideal heat exchanger, but a tube with a flat rectangular cross section is not only difficult to manufacture;
If it is flat, it is difficult to wind it in a spiral shape, making it difficult to realize it.

To solve the above-mentioned problems, a method has been proposed in which a flow path is provided in a flat plate, and the plates are laminated and integrated to form two fluid flow paths that are in thermal contact with each other.

OBJECTS OF THE INVENTION The present invention is characterized by a method of forming fluid communication passages between the laminated plates in this configuration, and has a simple structure.
The object of the present invention is to create a heat exchanger in the form of a layered wire heat exchanger in a layered manner.The three-layer wire heat exchanger has the structure of a three-layer wire heat exchanger in which independent flow paths of at least three fluid reservoirs share heat with each other. However, in the present invention, the inlet and outlet positions of the fluid of a blank plate having a flow path for heat exchange of one fluid are the same for the same fluid, and the outlet position and the inlet position are the same. By providing a passage connecting the fluids in a blank plate having a flow path for heat exchange with other fluids, a linear flow path is formed when the two fluids are laminated and integrated.

DESCRIPTION OF EMBODIMENTS FIGS. 2 and 3 are diagrams showing an embodiment of the present invention. That is, FIG. 2A shows the blank plate A that constitutes the first fluid flow path.
, the opening in FIG.
Figures 1 and 2 show blank plates C constituting the third fluid flow path, and Fig. 3 is a sectional view taken along line xx' of the blank plate C shown in Figure 2. In Fig. 2A, 1 is a groove that serves as a flow path;
2 is a partition wall for making this groove part 1 into a C-shaped flow path, U +
A2 '+ J +132, c, , c,, are the connecting passage components of the flow path, and the diagonally shaded AI + 8
2 + 02 is a through hole that penetrates the blank plate A. In the blank plate B shown in the opening of Figure 2, the positions of the blank plate A and the partition wall 2 are different, and it is 1.The positions of the through holes are also partially different, but A1 + A2
+ Bl' + B2 + C1+ C2 and its corresponding "+ + A'2 + B'I + B'2 +
The positions of C'l + C2 are the same. However, it is important to note that the locations of the through holes in base plate A and base plate B are different. In the blank plate C shown in Fig. 2, the position of the partition wall 2 is different from that of the blank plates A and B, and the position of the through hole is also partially different, but in the drawing, the arrow indicates the in-plane position. It shows the direction of flow.

In the following explanation, the raw plate A will be referred to as the A plate, the raw plate B will be referred to as the B plate, and the raw plate C will be referred to as the C plate.

For each of these blank boards, contact J + 82 questions and CI + 02 on A board, Al r A 2 questions and CI + "2 on B board, and Alt A 2 questions and Bl + B2 on C board. It is important that the through-holes of the pairs that communicate internally are the same throughout each plate for the same pair, and that the holes for the pairs that communicate internally are the same throughout each plate. , for example, A of board A,
, A2 through holes are connected to corresponding communication passages in other plates, such as A2.
It is important that it is different from the through hole of I t A21 AT + A2.

When these blank plates are stacked in a predetermined order, the flow path in the A plate passes through the connecting flow path in the intervening B or C plate, and is connected to the flow path in the next A plate, and further below. A of
It forms a spiral flow path while continuing in series with the flow path in the plate. Similarly, the channels in the B plate are connected in series in the order in which they are stacked, and the channels in the C plate are also the same.

For example, as conceptually shown in Figure 4, the blank plates are C1A and B.
, C, A, B, C, A, and B.
I, A2) + (AIIA2) + (”++ person 2
) from top to bottom, and connect the connecting flow path component (BI I
B2 ) I (B′+ +”2 ) + (;+
l B2 ) and (C5+C2) + ("j +"
2) + (When cold water flows from bottom to top on ('++02), it becomes a heat exchanger that transfers heat from plate A to plate B and plate C.
This is a three-layer heat exchanger configured such that the flow path of plate B always exists under plate A, and the flow path of plate C exists above plate A. This is similar to the winding of three rectangular tubes shown in Figure 1.Also, as shown in Figure 5, the blank plate is
Stack them like B, A, G, A, and connect the connecting flow path components (
A1+ A2) + ("I + heart) l (AI
+ A2) Pour hot water from above, (BT IB2)
l (B1+B2)1(C'1102) When cold water is poured from below, the A plate, B plate, A plate and C
The force that acts as a heat exchanger between the plates is generated by the connecting flow path component (B+ +
B2) + (B1.B2) +c", , g'2)
is a channel that always gives heat (A, + A2) + acts as an exchanger 0 In this way, depending on how the A, B, and C plates are stacked, the three channels can be stacked in various ways. However, only three types of blanks, A, B, and C, need to be prepared. In addition, the fourth
5, 3 is a first fluid inflow point, 4 is a second fluid inflow point, and 5 is a third fluid inflow point. Further, the arcuate arrow 6 indicates a C-shaped flow path, and the straight arrow 7 indicates a flow path connecting the raw material to the raw material. 1. in a predetermined order. Therefore, a compact, high-performance laminated heat exchanger can be easily produced with a simple structure of laminating the layers and integrating them by diffusion welding or the like.

[Brief explanation of drawings]

Fig. 1 is a conceptual diagram of a conventional three-layer linear heat exchanger, and Fig. 2 (A) 7 shows a schematic diagram of a conventional three-layer linear heat exchanger. A top view of the blank plate, Figure 3 is a sectional view taken along the line X-X in Figure 2, Figure 4 is a conceptual diagram showing the connection relationship of flow paths between each blank plate for an example of the stacking order, and Figure 5 FIG. 2 is a conceptual diagram showing the connection relationship of the flow paths between the blank plates in another example of the stacking order. 1... Fluid channel groove, 2... Partition wall. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 42 Figure 3 Figure 54 Figure 5 C2Ct B, B. 4 A-/47 A2<.

Claims (1)

[Claims] An annular channel groove provided on one flat plate is cut off by a certain line to create a C
3 pairs of mutually independent communicating flow path forming parts (A, l A2
) + (B+ l B2 ) l (C+ + 02
), the starting and ending ends of the C-shaped channel are connected to one of the pairs of communicating channel components, and a through hole is provided in a predetermined one of each pair of communicating channel components. The base plate A and this element have the same shape and the same position fH two connecting R path constituent parts (A1+A2), (B+, B2)
. ("+ + "2), and the positions of the starting and ending ends of the C-shaped flow path and the positions of the through holes in the two pairs of communicating flow path components are different, and the base plate B has the same shape as the base plate A. A blank plate C having a starting and ending position and a position of a through hole in the two pairs of communicating flow path components different from those of the blank plate A and the blank plate B,
This laminated heat exchanger is constructed by laminating these three types of blank plates in a predetermined order so that the independent flow paths of the three fluid reservoirs are in thermal contact with each other.