RU1815575C - Plate heat exchanger - Google Patents

Abstract

Usage: in the heating equipment of ventilation and air conditioning systems. SUMMARY OF THE INVENTION: A stack of plates is installed to form ducts for passing moistened and dried air. Corrugated inserts are located in the channels. In adjacent channels their corrugations are directed mutually perpendicularly. The plates are made in the form of pairwise connected polyethylene panels. They span the rod frames with tensioning device / The bases and corrugated vertices are glued to the web to form a rigid frame. A wettable coating is applied to the surface of the corrugations located in the humidified air channels. Nozzles and trays for collecting water are installed in these channels. 3 ill. with C

Description

The invention relates to heat engineering equipment, in particular to heat exchangers, and can be used in ventilation and air conditioning systems.

The purpose of the invention is to simplify the design while increasing the efficiency of heat transfer by adiabatic evaporation.

In Fig, 1 shows the proposed device, front view; in FIG. 2 - the same section; in FIG. 3 - the same, axonometric.

The device comprises plates 1 made in the form of pairwise connected panels, strung onto the rod frames 2 with a tension device 3,

Corrugated inserts 4 and 5, the bases of the top of which are glued to the panels, with a wettable coating being applied to the corrugated inserts 5.

Plates 1 and corrugated inserts 4 and 5 form channels for the passage of working media, dry channels 6 are formed using corrugated inserts 4, condensation channels 7 are formed using corrugated inserts 5. Using nozzles 8, additional humidification of the air entering the condensation channels is carried out. and irrigation of the canals themselves.

For draining water, pan 9 is installed.

The device operates as follows. During the operation of the heat exchanger, the coolant flows along the channels 6 and 7 in mutually perpendicular directions.

The heat exchange is carried out through the plate-1 of the plate 1. Corrugated inserts 5 and 4 for 00 SP

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Allow to improve heat transfer, performing the role of finning the plates. The inserts 5 and 4 are glued to the plastic sheets of the plates 1 with the formation of a rigid frame. This design allows the creation of areas of additional turbolization resulting from vibration of the surface of the heat exchanger. In addition, by adhering the corrugations of the inserts 5 and 4 to the surface of the plate 1, the tightness of the device is increased and the flow of media between the channels 6 and 7 is eliminated.

To irrigate the corrugated inserts 5 of the condensation channels. 7 water is sprayed from the nozzles 8.

By applying a wettable coating on the surface of the corrugated inserts 5 channels 7 and their irrigation significantly increases the heat transfer rate due to adiabatic evaporation.

The rod frames 2 with the tensioning device 3 make it possible to provide tension of the panels to the rods, impart the necessary rigidity to the structure and increase its reliability.

The proposed heat exchanger is intended for pre-cooling the air and then entering it into the air conditioner for further processing.

The design of the claimed device makes it possible to operate at a small temperature difference and to use the air coming from the workshop to the condensation channels with t 23 ° C to cool the air coming from the street with t 25-30 ° C.

The inventive device does not require energy consumption, because air for blowing the condensation channels and irrigation water are supplied from the fan and the air conditioning pump.

The use of an inventive device having a simple design, low weight, which does not require electricity. will increase the heat transfer rate due to the use of adiabatic evaporation.

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Claims (1)

The claims A plate heat exchanger containing a package of plates installed to form channels for passing moistened and dried air, in which the corrugated inserts are located and their corrugations are directed mutually perpendicularly in adjacent channels, characterized in that, in order to simplify the design while increasing the efficiency of the process heat transfer by adiabatic evaporation, the plates are made in the form of pairwise connected polyethylene panels covering rod frames with a tension device, based and peaks of the corrugations glued on a panel to form a rigid framework, and the surface corrugations arranged in the channels for the humidified air, wettable coating applied and installed in these channels and nozzles for spraying the water collecting trays. 9V " Air oz / xttoeuff / ft / t I