SU1108321A1 - Heat exchanger and heat exchanger package - Google Patents

Abstract

1. A HEAT EXCHANGER containing a casing and perforated matrices located in it with spacer spacers, forming high and low pressure channels with supply and discharge connections for working media, characterized in that. that, in order to intensify heat exchange and reduce hydraulic resistance in low pressure channels, the heat exchanger further comprises dividing partitions arranged parallel to the matrices and contacting on the part of the perimeter with the inner surface of the casing to form from the rest of the perimeter of the overflow cavities. 2. A heat exchanger according to claim 1, characterized in that the matrices are stepwise displaced relative to each other with the combination of their perforations Q & to form straight channels. "L 3. A heat exchanger package containing perforated plates alternating with a spacer, characterized in that, in order to simplify the construction and unification of the package elements, the plates and spacers are made in the form of perforated strips placed mutually perpendicularly. er

Description

The invention relates to heat-trapping apparatus of the matrix type, preferably for; heat exchange between environments with a large difference in operating pressures (or densities), and can be used in refrigeration and cryogenic engineering, power engineering and other fields of engineering. A heat exchanger is known, comprising a housing and perforated arrays located in it with separating spacers, forming high and low pressure channels with supply and discharge connections l. The disadvantages of this heat exchanger are low intensity of heat exchange and high hydraulic resistance. In the low pressure channels, P1 is known for a package of heat exchanger containing perforated plates of a series of 10 Schles with npocTaBKaNW 21. The disadvantage of this well-known package is the complexity of the design and the presence of non-certified elements. The purpose of the invention is to intensify heat exchange and reduce hydraulic resistance in low pressure channels, as well as to simplify the design and unify the elements of the heat exchanger package. The goal is achieved by the fact that a heat exchanger containing a casing and perforated matrices located in it with separator npocTaBKa№i, forming high and low pressure channels with connections for supplying and discharging working media, additionally contains separating partitions arranged parallel to the matrices and contacting on the part of the perimeter with the inner surface of the casing to form on the side of the rest of the perimeter of the recess cavities: the dies can be stepwise displaced one relative to the other with perforations to form straight channels. In the package, containing perforated plates, alternating-gess with spacers, plates and spacers are made in the form of perforated strips placed mutually perpendicularly. Figure 1 shows the heat exchanger in FIG. 2, heat exchanger with step 11 of the displacement of the matrips; in fig. 3 heat exchange package; in fig. 4 and 5 are embodiments of the spacers and plates in the package. The proposed heat exchanger includes a package. The heat exchanger contains a casing 1 and sections 2 of the stack arranged successively, bounded by perforated dies 3. Sections 2 are assembled from heat conducting perforated dies 3 alternating with spacer spacers 4 with windows. The spacers 4, when assembled alternately with the dies 3, form high pressure KaHajibi 5 arranged in rows in a low pressure channel 6. The channels 5 and channel 6 of the section are from each other by walls 7. The casing 1 is made with transfer cavities 8 separated from each other by ribs 9, which are connected to the edges of the matrices 3, and the edges of the matrices 3, limiting D11x to the same section 2 connected to the ribs 9 of the two different walls of the casing 1, and on the opposite side of the lines of contact of the edges of the matrices 3 with the edges 9 are the overflow cavities 8. The latter successively report portions of the channel 6 in sections 2, with the cavities 8 in the extreme sections x 2 passing into the cavity of the pipe 10 low pressure and. The manifolds 11 for the high pressure channels 5 are adjacent to the extreme sections 2 of the bag and contain the plenum channels 12 and the nozzles 13. The perforated dies 3 can have corrugated sections (Fig. 4), and the spacers 4 can be made with twisting side edges (Fig .five). The heat exchanger, including the package works as follows. The medium with high working distance gives off heat to the areas of perforated dies 3 located in the high pressure channels 5. Heat is distributed along the spacer spacers 4 to their parts, located in the low-pressure channel 6. where it is given to the cooling medium driven by the transverse current. The economic effect as a result of using the proposed heat supply 31108321. "

A mannik and package for heat exchanger whose resistance in low cairls arises due to pressure intensification, simplification of heat exchangers and heat exchange, reduction of hydraulic unification of package elements.

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Claims (3)

1. HEAT EXCHANGER, comprising a casing and perforated matrices located therein with spacer spacers, forming high and low pressure channels with nozzles for supplying and discharging working media, characterized in that, in order to intensify heat transfer and reduce hydraulic. resistance in the low pressure channels, the heat exchanger further comprises dividing walls located parallel to the matrices and in contact on the perimeter part with the inner surface of the casing for the formation of overflow cavities from the rest of the perimeter. 2. The heat exchanger according to claim 1, characterized in that the matrices are stepwise displaced relative to one another with the combination of their perforations to form straight channels. 3. A heat exchanger package containing perforated plates alternating with spacers, characterized in that, with a chain of simplification of the design and unification of the package elements, plates and spacers are made in the form of perforated plates placed mutually perpendicularly.