SU502614A3 - Heat exchanger plate - Google Patents

Description

The purpose of the invention is to increase the strength.

To achieve this goal, in the predlozhenny plate one of the side walls of the extreme protrusion has a notch with a base that coincides with the plane of the lower part of the adjacent depression, and intended to contact with the tops of the protrusions of the adjacent plate.

In such a plate, the anchor points of the sealing groove on the protrusions of the adjacent plate are much closer than the known ones. At the same time, the side wall at the grooves has sections transverse to this wall, which increase the rigidity of the extreme protrusion, which, together with the approximation of the anchor points noted above, increases the strength of the plate near the sealing groove and makes it possible to refrain from installing auxiliary parts on the reverse side of this groove Ensuring that the gaskets in the package are sufficiently compressed.

In a preferred embodiment, the adjacent depression can be made with a reduced depth between said grooves. Due to this, the cross sections to the lateral step are increased — even more, the rigidity of the outer lip increases. Depth areas with greater depth can be made in the form of transverse grooves, and the extreme ledge at the locations of the grooves can have a reduced height.

FIG. 1 shows a plate of a heat exchanger and a plate adjacent to it; in fig. 2 - parts of these plates with distribution zones (on an enlarged scale); in fig. 3 is a sealing groove of a known plate, the section along A-A in FIG. one; in fig. 4 - a fragment of the proposed plate with a sealing groove, view in plan; in fig. 5- pack. Sealing groove of the proposed plate with a gasket and elements of adjacent plates, a section along BB in FIG. four; in fig. 6 is a fragment of a variant of the proposed plate with a sealing groove, a plan view; in fig. 7 is a fragment of a preferred variant of the proposed plate with a groove, a plan view; in fig. 8 is a groove, a cross-section along BB in FIG. 7

Plate 1 of the heat exchanger and the plate 2 adjacent to it have two distribution zones 3 and 4 common to both heat exchange media. Zones 3 and 4 are located respectively between the heat exchange surface 5 and the openings 6-7 and 8-9 for the inlets and outlets of the media. Zones 3 and 4 are made with corrugations in the form of alternating protrusions 10 and depressions 11, directed from opening 6 (for area 3) and opening 9 (for area 4) to the heat exchange surface 5. Hollows And plate 1, when assembled into a package, is in contact with projections 10 an adjacent plate 2 having a different direction and serving as a support for the sealing groove 12. The groove 12 is formed by the side wall 13 of the outermost protrusion 14 and is between the hole 7 and the zone 3 (the other groove 12 is formed between the holes 8 and the zone 4). The assembly of the plates 1 and 2 into the package of the heat exchanger along the periphery of the gasket is laid gasket 15 and in the grooves 12 - gasket 16.

5 A gasket 16, located in the groove 12 of the plate 1 (see Fig. 3), is pressed against the plane 17 of the adjacent plate 18. The compressive force from the plate 1 is transmitted through the plane 19 of the lower part 19 adjacent to the extreme lip

0 14 cavities 20 on the projections 10 of the plate 2. Arrows 21 indicate the direction of movement of the heat exchange medium between plates 1 and 2. The compression force of the gasket 16 can accelerate plate 1, for example, along the dribble line, as a result of which the seal between plates 1 and 18 can be violated. In the proposed plate 1 (see Fig. 4-8), the other side wall 22 of the outermost protrusion

0 14 has notches with a base 23 that coincides with the plane of the lower part of the depression 20. These notches are in contact with the vertices of the projections 10 (marked with a dashed line in Fig. 4) of the adjacent plate 2 and therefore the proposed plate has reference points located much closer - at a distance G - to the sealing groove 12 (see Fig. 5), than in the known plates - at a distance D (see Fig. 3).

0 The notches on the side wall 22 have transverse sections 24, which increase the rigidity of the extreme protrusion 14, which, together with the above approximation of the anchor points, increases the strength of the proposed plate at the sealing groove 12.

In a preferred embodiment, the trough 20 of the plate can be made partially with a reduced depth of 25 between said grooves with a base 23, which increases

0, sections 24 transverse to the side wall 22 and thereby further increase the rigidity of the end protrusion 14 to the forces transmitted across this protrusion 14. At the same time, sections of the depression 20 with deeper depth in the preferred embodiment of the proposed plate can be made in the form of transverse grooves 26 ( coinciding in direction with the protrusions 10 of the adjacent plate, marked in Fig. 7 by dashed lines), and the extreme

0, the protrusion 14 at the locations of the grooves with the base 23 may have sections 27 with a reduced height, which generally also increases the strength of the plate in the region of the sealing groove 12 and improves the performance of the gaskets 16 in the heat exchanger package, allowing the use of high pressure heat exchanging media.

Subject invention

Claims (4)

1. A heat exchanger plate with two distribution zones common to both heat exchange media, each of which is located between the heat exchange surface and the entrance and exit vertices of the media and is made with corrugations in the form of alternating protrusions and depressions directed from the opening of one medium to the heat exchange surface and contacting with package assembly with corrugations of adjacent plates having a different direction and serving as a support for the sealing groove formed by the side wall of the outer lip and placed between the hole a Other medium and distribution zone, characterized in that, for the purpose of new strength, the other side wall of the extreme protrusion has notches with the base coinciding with the plane of the lower part of the adjacent depression, designed to contact the protrusions of the adjacent plate. 2. A plate according to claim 1, characterized in that the adjacent depression is made with a reduced depth between said grooves. 3. Plastina on n. 2, characterized in that the portions with greater depth are made in the form of transverse grooves. 4. Plastina but nn. 1-3, characterized in that the extreme protrusion at the locations of the recesses has a reduced height. 3 15 P (fui 2 18 1Q / 9 fut.s nineteen Rig d