JPH04371794A - Lamination type heat exchanger - Google Patents

Abstract

PURPOSE:To provide a lamination type heat exchanger employed for air- conditioning system and the like, which is capable of increasing the heat transfer area of a plate, on which fluid flows, and improving heat exchanging performance. CONSTITUTION:An end plate, having the outlet port and the inlet port of fluid, is laminated an a plurality of primary side plates 21 and secondary side plates, which are laminated alternately through seal plates, while the shapes of a plurality of grooves of the primary side plate 21 and the shapes of a plurality of grooves on the secondary plate are corrugated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated heat exchanger used in air conditioning systems and the like.

0002

[Prior Art] Laminated heat exchangers are used in air conditioning systems to exchange heat between fluorocarbons, fluorocarbons and water, or between water and water.In recent years, with the diversification of air conditioning systems, Demand is increasing.

Referring to FIGS. 10 to 13 below, the conventional example (
(Japanese Unexamined Patent Publication No. 3-20592) will be explained.

FIG. 10 is an exploded perspective view of a conventional laminated heat exchanger, FIG. 11 is a plan view of the primary plate, FIG. 12 is a plan view of the secondary plate, and FIG. 13 is a plan view of the seal plate. .

As shown in the figure, the conventional laminated heat exchanger is
A plurality of primary plates 1 and secondary plates 2 are alternately stacked with a seal plate 3 in between, and an inlet portion 4 is provided at both ends.
, 5 and an end plate 8 and an end plate 9 having outlet portions 6 and 7 are tightly attached to prevent internal fluid from leaking.

[0006] Fluid flowing in from the inlet portion 4 flows into a plurality of grooves 11 of the primary plate 1 partitioned by partitions 10 and flows out to the outlet portion 6 .

On the other hand, other fluids flowing in from the inlet portion 5 flow into a plurality of grooves 13 of the secondary plate 2 separated by partitions 12 and flow out to the outlet portion 7.

At this time, heat exchange is performed between different fluids on both the upper and lower sides via the seal plate 3.

[0009]

However, in the above structure, the plurality of grooves 11 and 2 of the primary plate 1
Since the shape of the plurality of grooves 13 of the next plate 2 is linear and the seal plate is also a flat plane, there is a limit to the heat transfer area, making it difficult to improve heat exchange performance. was.

In view of the above problems, the present invention aims to improve heat exchange performance.

[0011]

[Means for Solving the Problems] In order to solve the above problems, the laminated heat exchanger of the present invention has an end plate having an inlet/outlet portion for fluid, and a primary side plate having a plurality of grooves through which fluid flows. A plurality of plates and secondary plates are alternately stacked with seal plates interposed therebetween, and grooves having a plurality of wave-shaped irregularities are provided in the primary plate and the secondary plate.

[0012] Also, a plurality of end plates having inlet and outlet portions for fluid, primary plates and secondary plates each having a plurality of grooves through which fluid flows are alternately stacked with a seal plate interposed therebetween, and the seal plate Further, a groove is provided at a contact portion between the primary plate and the plurality of grooves of the secondary plate.

[0013]

According to the present invention, the heat transfer area of the plurality of grooves in the primary plate and the secondary plate can be increased by the above-described configuration, and the heat exchange performance can be improved.

Furthermore, the heat transfer area of the seal plate in the portion overlapping with the plurality of grooves of the primary plate and the secondary plate can be increased, resulting in improved heat exchange performance.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A stacked heat exchanger according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the primary plate of the present invention;
2 is an enlarged plan view of the main parts of the primary plate, FIG. 3 is a plan view of the secondary plate, FIG. 4 is an enlarged plan view of the main parts of the secondary plate, FIG. 5 is a plan view of the seal plate, and FIG. FIG. 2 is a perspective view of a laminated heat exchanger.

As shown in the figure, the laminated heat exchanger of the present invention has a plurality of primary plates 21 and secondary plates 22 stacked alternately with a seal plate 23 interposed therebetween, and an inlet portion 15 is provided at each end of the stacked heat exchanger. , 16 and an end plate 19 having outlet portions 17, 18.
It has a structure in which the end plate 20 and the end plate 20 are brought into close contact with each other to prevent internal fluid from leaking.

The fluid flowing in from the inlet portion 15 passes through the partition 30
The water flows into the plurality of grooves 31 of the primary plate 21 separated by , and flows out to the outlet section 17 .

On the other hand, other fluids flowing in from the inlet portion 16 flow through a plurality of grooves 33 of the secondary plate 22 separated by partitions 32.
and flows out to the outlet section 18.

At this time, heat exchange is performed between different fluids on both the upper and lower sides via the seal plate 23.

In this embodiment, the plurality of grooves 31 of the primary side plate 21 and the plurality of grooves 33 of the secondary side plate 22 are shaped to have corrugated irregularities, so that the heat transfer area can be increased. Heat exchange performance can be improved.

Further, a stacked exchanger according to another embodiment of the present invention will be explained with reference to the drawings. FIG. 7 is a sectional view of the main parts of the laminated heat exchanger of the present invention, FIG. 8 is a plan view of the primary plate,
FIG. 9 is a plan view of the secondary plate.

As shown in the figure, the laminated heat exchanger of the present invention includes a primary side plate 41, a seal plate 43 having grooves 55 and 57 on both sides, a secondary side plate 42, other grooves 59 on both sides, A plurality of seal plates 44 provided with 61 and a plurality of primary plates 41 are stacked alternately, and inlet portions 15,
16 and an end plate 19 having outlet portions 17 and 18, and an end plate 20 are tightly attached to prevent internal fluid from leaking.

The fluid flowing in from the inlet portion 15 passes through the partition 50
Flows into the plurality of grooves 51 of the primary plate 41 separated by the plurality of grooves 55 of the seal plate 43, which has grooves 55, 57 on both sides, and the seal plate 44, which has other grooves 59, 61 on both sides. The water passes through the plurality of grooves 61 and flows out to the outlet section 17.

On the other hand, other fluids flowing in from the inlet portion 16 are
A plurality of grooves 5 of the secondary plate 42 separated by partitions 52
3, passes through the plurality of grooves 59 of the sealing plate 44 provided with other grooves 59 and 61 on both sides and the plurality of grooves 57 of the sealing plate 43 provided with grooves 55 and 57 on both sides, and the outlet part 1
8.

At this time, heat exchange is performed between different fluids on both the upper and lower sides via the seal plate 43 having grooves 55 and 57 on both sides and the seal plate 44 having other grooves 59 and 61 on both sides.

In this embodiment, the seal plates 43 and 44 have a plurality of grooves 51 in the primary plate 41 and the secondary plate 4.
Grooves 55, 57, and 59 are in contact with the plurality of grooves 53 of No. 2.
, grooves 61, the heat transfer area can be increased and the heat exchange performance can be improved.

[0028]

As described above, the present invention has an end plate having an inlet/outlet portion for fluid, and a primary plate and a secondary plate each having a plurality of grooves through which fluid flows, which are arranged alternately through a seal plate. A plurality of plates are stacked, and the primary side plate and the second side plate are stacked.
By providing the grooves having a plurality of wave-shaped irregularities on the next plate, the heat transfer area can be increased, and the heat exchange performance can be improved.

[0029] Furthermore, a plurality of end plates having inlet and outlet portions for fluid, and a plurality of primary plates and secondary plates each having a plurality of grooves through which fluid flows are alternately stacked with a seal plate interposed therebetween. Furthermore, by providing grooves at the abutting portions of the primary plate and the plurality of grooves of the secondary plate, the heat transfer area can be increased and the heat exchange performance can be improved.

[Brief explanation of drawings]

FIG. 1 is a plan view of a primary plate in an embodiment of the present invention.

[Fig. 2] An enlarged plan view of the main parts of the primary plate in one embodiment of the present invention.

FIG. 3 is a plan view of the secondary plate in one embodiment of the present invention.

[Fig. 4] An enlarged plan view of the main parts of the secondary plate in one embodiment of the present invention.

FIG. 5 is a plan view of a seal plate in an embodiment of the present invention.

FIG. 6 is a perspective view of a stacked heat exchanger according to an embodiment of the present invention.

[Fig. 7] Cross-sectional view of main parts of a stacked heat exchanger according to another embodiment of the present invention.

FIG. 8 is a plan view of a primary plate in another embodiment of the present invention.

FIG. 9 is a plan view of a secondary plate in another embodiment of the present invention.

[Figure 10] Exploded perspective view of a conventional stacked heat exchanger

[Figure 11
] Plan view of the primary plate that constitutes a conventional stacked heat exchanger

[Fig. 12] Plan view of a secondary plate that constitutes a conventional stacked heat exchanger.

[Fig. 13] Plan view of a seal plate that constitutes a conventional stacked heat exchanger.

[Explanation of symbols]

15, 16 Inlet section 17, 18 Outlet section 19, 20 End plate 31, 33, 51, 53, 55, 57, 59, 61
Grooves 21, 41 Primary side plates 22, 24 Secondary side plate

Claims (2)

[Claims] 1. A plurality of primary side plates and secondary side plates each having an end plate having an inlet/outlet portion for fluid and a plurality of grooves through which fluid flows are alternately stacked with a seal plate interposed therebetween, A laminated heat exchanger characterized in that a side plate and the secondary side plate are provided with grooves having a plurality of wave-shaped unevenness. 2. A plurality of end plates having an inlet/outlet portion for fluid, and a plurality of primary plates and secondary plates each having a plurality of grooves through which fluid flows are alternately stacked with a seal plate interposed therebetween, and the seal plate A laminated heat exchanger characterized in that a groove is provided at a contact portion between the primary side plate and the plurality of grooves of the secondary side plate.