SU1219912A2 - Plate-type heat exchanger - Google Patents

Description

The invention relates to heat exchangers made in the form of stacked sets of plates with means for intensifying heat exchange, and is an improvement of the known device according to the authors. St. No. 513234.

The purpose of the invention is to intensify heat transfer.

FIG. 1 shows a fragment of the package of the proposed heat exchanger; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 is a diagram of the movement of the working medium between the plates of the stack.

The heat exchanger contains a package of pairwise jointed plates 1-4 with cylindrical

in the spaces between the projections b are made with inclined ribs 9 coinciding in direction with the direction of the outliers 7, between the outlets 7 there are intervals Yu, and between the adjacent pairs of plates 1, 2 and 3, 4 are diamond-shaped passages I separated by slotted zones 12.

The heat exchanger operates as follows.

ten

However, from working media, such as exhaust gases, passes through channels 5, where it is additionally twisted in spiral channels 8. Another working medium, such as air, moves along passages 11. When

by the canals 5, which are formed by this rib 9, change the direction by the side projections b, alternating along the night flow layer, guided it through

slotted zones 12 from one passage 11 to another. The air is returned back through the gaps 10 between the extrusions 7. Bloodline with spiral extrusions 7 for swirling the flow and located between the projections b flat 1, 2 and 3, 4 adjacent pairs. The extractors 7 are made toroidal, the year is organized in such a way, and when articulating the plates 1, 2 form a zigzag movement of the air flow, its additional

turbulization and thereby intensification of 3, 4 spiral channel 8 and distance stops for adjacent pairs, and their height is greater than the height of the projections b. Plates 1-4

heat exchange.

/ 1-D

99

in the spaces between the projections b are made with inclined ribs 9 coinciding in direction with the direction of the outliers 7, between the outlets 7 there are intervals Yu, and between the adjacent pairs of plates 1, 2 and 3, 4 are diamond-shaped passages I separated by slotted zones 12.

The heat exchanger operates as follows.

However, from working media, such as exhaust gases, passes through channels 5, where it is additionally twisted in spiral channels 8. Another working medium, such as air, moves along passages 11. When

In this way, the ribs 9 change the direction of the stream layer, directing it through

slotted zones 12 from one passage 11 to another. The air is returned back through the spaces 10 between the extrusions 7. Thanks to the organized, so the zigzag movement of the air flow is carried out by its additional

turbulization and those

heat exchange.

5-5

FIG. 2

FagL

Compiled by Y. Karpenko

Tehred I. VeresKorrektor

Circulation 590 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

P3035, Moscow, Zh-35, Raushsk nab. 4u5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Editor A. Vorovich Order 1314/49

V 9

7

9

Fig.Z

Claims (1)

LAMINATED HEAT EXCHANGER by ed. St. No. 513234, characterized in that, in order to intensify heat transfer, the plates in the spaces between the protrusions are made with inclined ribs that coincide in direction with the direction of the toroidal extrusions. // 11 12