SU1208458A1 - Regenerative heat exchanger - Google Patents

Description

The invention relates to a heat exchange technique and can be used in fuel-burning installations.

The purpose of the invention is to increase the thermal efficiency of the heat exchange heat absorption unit.

Fig. 1 shows a heat exchanger; longitudinal section; in fig. / 1 is a sectional view in FIG. one; FIG. 3 is a section BB in FIG. Fig, 4 - view of the plates of the same type, axonometric; in fig. 5 is a view of plates of another type of axonometric.

The regenerative heat exchanger contains a package of corrugated plates: plates 1 and 2, arranged transversely in channel 3 for the passage of heat exchange among those supplied to the concave and convex; The sections h and 5 of the corrugations are spaced-lagging protrusions 6 and 7, and the protrusions 6 of the plates 1 are displaced relative to the protrusions 7 of the adjacent plates 2, For the passage of heat exchanging media, 8 and 9 are made in the plates for holestop the tabs 6 of the concave sections 4 corrugation plates 1; and the holes 9 in the distantiruyu1Ts-x. the protrusions 7 convex sections 5 corrugation plastic 2; with plates 1,

For the supply of the heating medium and removal of the heated medium in the channel 3, an opening 10 is made, and for the supply of a heated medium and removal of the heating medium an opening 11 is made. On the edges of the plates 1 and 2 there are placed heat-insulating gaskets 12 "between them

The work of the proposed heat exchanger is as follows.

When heating a package of corrugated plates 1 and 2, the heating medium supplies.

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c in the channel 3 through the opening 10 and passage through the holes 8 and 9 enters the space between the plates 1 and 2. Moreover, due to the holes 8 and 9 in the spacer tabs 6 of the concave sections of the corrugations of the plate 1 and in the spacer tabs 7 of the convex sections 5 of the corrugations the plates 2 and the offset of the protrusions 6 relative to the protrusions 7 ensure uniform washing of the surfaces of the plates 1 and 2 with the heating medium, which increases the degree of utilization of the heat exchange surface of the stack of plates 1 and 2, respectively, increases the thermal efficiency of enni- ka. In addition, due to the blown holes 8 and 9 in the protrusions 6 and 7 and the presence of the gaskets 12, the temperature due to thermal conductivity of the plates 1 and 2 through the package thickness is prevented from being equalized, which also intensifies the heat exchange. Having given off heat to the package of plates 1 and 2, ophalsdenpa; the heating medium is removed from channel 3 through opening 11.

After the package of plates 1 and 2 is heated to the required temperature, the supply of heating medium is stopped and the heated medium begins to pass through the package, feeding it into channel 3 through opening 11, then the heated medium passes through the holes 9 and 8 into the space of the plates 1 and 2, and having washed them evenly on the surface, is intensely heated and, when heated, is removed through the opening 10. After cooling of the package of plates 1 and 2, the cycle is repeated, ensuring high thermal efficiency of the heat exchanger.

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Claims (1)

REGENERATIVE HEAT EXCHANGER containing a package of corrugated plates located transversely in the channel for the passage of heat-exchanging media and provided with concave sections in the corrugated corrugations of the corrugations, the holes being made in the plates for the passage of heat-exchanging media, characterized in that, in order to increase thermal efficiency by intensifying heat transfer, the plates on the convex sections of the corrugations are also equipped with spacing protrusions, and the protrusions of adjacent plates are offset, and the holes in the interfacial plates are made in the distant projections of concave and convex sections _{of the} corrugation, respectively. 9