CZ284228B6 - Multi-plate heat-exchange apparatus - Google Patents

Abstract

A laminated heat exchanger for remote heating or cooling, composed of primary and secondary piping, with the primary piping (1) and secondary piping (3) connected together by metal fins (2).<IMAGE>

Description

The invention relates to a vane heat exchanger for indirect heating or cooling of liquid and gaseous substances, for example for domestic hot water utilizing waste heat from cooling condensing units.

BACKGROUND OF THE INVENTION

To date, devices are known in which water is heated or cooled in open tanks, resulting in the formation of algae in the water and the resulting limited range of use. These devices are directly heated or cooled by a heating or cooling medium. Furthermore, devices for heating water by the waste heat from chiller condensing units are known which are designed to heat the water directly, i.e. by flowing the hot coolant from the compressor through a heating coil located in the tank or guided inside the external pipe of heated water. Indirect heating devices are also known which utilize cavity exchangers interconnected in parallel. At the last countercurrent cavity heat exchanger connected in series, the heating screw is provided with a cold drinking water supply. The equipment is complex and requires temperature sensors, solenoid valves, thermostatic valves, pumps, safety valves and other elements to prevent contamination of the heated water with cooling water in the event of a circuit failure.

SUMMARY OF THE INVENTION

The above-mentioned drawbacks, especially in the case of pipeline failure, where undesirable medium may enter the pipeline and thus the equipment is degraded, are eliminated by a lamellar exchanger consisting of primary and secondary piping, which is based on the fact that the primary pipeline is interconnected by metal slices with secondary piping.

It is preferred that the two pipes, both primary and secondary, be serpentine alternately adjacent to each other in one plane as countercurrent and interconnected by conductive metal plates.

The advantage of such a finned heat exchanger is to ensure high efficiency of energy transfer and to avoid mutual interconnection of the medium into the opposite piping in case of failure even in case of connection of more devices to one exchanger.

Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a device according to the invention wherein the primary and secondary pipes interconnected by metal plates are serpentine alternately adjacent to one another in FIG. in multiple planes and also interconnected by metal slices.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows schematically a vane heat exchanger arrangement in which heat or cold from the medium flowing through the primary conduit 1 is transferred by means of metal plates 2 to a secondary conduit 3 arranged in parallel with the primary conduit 1 in one plane. In FIG. 2, the two pipes are arranged side by side in different planes and consistently constructed

Maintain the separation of the primary pipe 1 from the secondary pipe 3 by lamellas (metal slices 2). This ensures that one of the two substances passing through lines 1 and 3 cannot be contaminated. In principle, the lines are not guided so that, for example, a smaller inner pipe passes through the outer pipe, since the medium flowing through the outer larger pipe would be contaminated. Both liquid and gaseous media such as petroleum products, alcohol, steam, water, coolant and the like can be used for heating or cooling.

Industrial applicability

The lamellar heat exchanger for indirect heating or cooling of liquid and gaseous substances can be used for heating of domestic water by hot waste steam from cooling condensing units such as water condensers, heat pump heat exchangers, hot medium defrosters, flow coolers and heaters, air dehumidifiers and the like.

PATENT CLAIMS

Claims (1)

A lamella heat exchanger for indirect heating or cooling, comprising primary and secondary pipes, characterized in that the primary pipe (1) is interconnected by metal plates (2) to the secondary pipe (3).