SU1538007A1 - Plate-type heat-exchanger - Google Patents

Abstract

The invention relates to heat exchangers and can be used in cryogenic technology. The aim of the invention is to increase the heat exchange efficiency. During the operation of the heat exchanger, the coolant and the cooled medium are supplied to adjacent channels 5. Heat from the cooled medium is perceived by the nozzles 2 and intermediate layers 3 made of highly heat-conducting material, as well as the main plates 1 of low heat-conducting material. The presence in the main plate 1 of the jumpers 4 of high-conductive material increases the transverse thermal conductivity of the plate 1. At the same time, the longitudinal thermal conductivity of the heat exchanger remains low due to the implementation of the plates 1 of the low-conductive material, as well as the presence of gaps between the nozzle sections 2 and between the intermediate layers 3. 2 or .

Description

figure 1

The invention relates to heat exchangers and can be used in cryogenic engineering.

The purpose of the invention is to increase the efficiency of heat transfer.

1 shows a heat exchanger, a longitudinal section; Figure 2 is the same, in the following section.

The heat exchanger contains the main plate-1 of low-conductive material (for example, titanium, stainless steel), located between the nozzles 2 of high-conductive material (for example, copper, aluminum), divided into separate sections, installed with gaps between them, and intermediate layers 3 of high-conductive material placed between the plates 1 and nozzles 2 and having gaps corresponding to the gaps between the sections of the nozzles 2..The main plates 1 are equipped with bridges 4 of highly heat-conducting material, between adjacent intermediate layers 3 and connecting them. Adjacent sections of nozzles 2, in adjacent channels 5 of the heat exchanger are located opposite each other.

The heat exchanger operates as follows.

A coolant and a cooled medium are supplied to the adjacent channels 5 of the heat exchanger. The heat from the cooled medium is perceived by the nozzles 2, the intermediate layers 3 and the plates 1, and due to the thermal conductivity of these parts is transferred to the refrigerant. The presence in the main plate 1 of the jumpers 4 of high-conductive material increases the thermal conductivity of the plate 1 when heat is transferred from the intermediate layer 3 of one channel 5 to the intermediate layer 3 of the adjacent channel 5. At the same time, the longitudinal thermal conductivity of the heat exchanger remains low due to the implementation of the low-conductive material plates 1 the presence of gaps between the sections of the nozzles 2 and between the intermediate layers 3.

Claims (2)

1. A plate heat exchanger containing main plates of low thermal conductivity material, nozzles located between them, divided into separate sections, installed with gaps between them, and intermediate layers of high thermal conductivity material, placed between 5 plates and nozzles and having gaps corresponding to the gaps between the nozzle sections, characterized in that, in order to increase the heat exchange efficiency, the main plates are provided with jumpers of highly heat-conducting material placed between adjacent intermediate layers. 2. A heat exchanger according to claim 1, about tl and -, in that the adjacent sections of the nozzles in adjacent channels of the heat exchanger are located opposite each other. Editor N. Yatsola Compiled by A. Berezhnoy Tekhred L. Serdyukova Order 161 Circulation 537 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 2 Proofreader V.Girn to Subscription