SU1573327A1 - Heat-transfer device - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to heat engineering and allows an increase in heat transfer capacity. The heat transfer device contains a vertical sealed case partially filled with a liquid coolant with a zone 2 supplying heat to parts of its side surface and placed inside the case parallel to its axis tubes 4 and 5, forming a heat removal zone 6 and interconnected with the case with longitudinal bridges 9. The space between housing and tubes 4 and 5 are divided in height into sections by means of transverse partitions 8 installed with gaps relative to the housing and jumpers 9, the latter separating each section n parts, one of which is located the zone 2 of heat input. When the device is operating, the heat carrier in the heat supply zone 2 boils and in each section, under the effect of the "parlift" effect, a circulation loop arises (the steam condenses on the surface of tubes 4 and 5), which contributes to an increase in the heat transfer capacity of the device. 2 Il.

Description

The invention relates to heat engineering.

The purpose of the invention is to increase heat transfer ability, 5

Figure 1 schematically shows a device, a longitudinal section; figure 2 is a section aa in FIG. 1.

The heat transfer device contains * a vertical sealed housing 10 1 with a heat supply zone 2 on the side surface (on the part of the perimeter of its cross section) and a channel 3 located inside the housing 1, formed by pipes 4 and 5, which are cooled from the inside by the refrigerant stream 15, installed parallel to the axis of the housing 1. These tubes form a heat removal zone 6 inside the housing. The space between the housing 1 and the tubes 4 and 5 20 is partially filled with liquid coolant and is divided in height into sections by means of transverse partitions 8, and each section is divided into two parts by longitudinal jumpers 9, connecting 25 tubes 4 and 5 between each other and with the housing 1, and the heat supply zone 2 is located in one of the parts, and the wall of the housing 1 in the other part of the sections 7 is covered externally with thermal insulation 30

10. Partitions 8 are placed with gaps 11 and 12, respectively, relative to the housing 1 and the longitudinal jumpers 9, which at the periphery can be bent to the side opposite to the heat supply zone 35 (Fig. 2).

The device operates as follows.

When heating zone 2 of heat supply is heated, the coolant boils and steam bubbles rise in a two-phase flow in each section 7, touch the surfaces of tubes 4 and 5 and the steam condenses (fully or partially), after which the coolant flow passing through the wall from the jumpers 9 moves downward in its section 7 (the remaining part of the vapor condenses on the tubes 4 and 9 on their other side) and then passes into the gap 12 and again enters the heat supply zone 2. Thus, in each section 7, its own circulation of the coolant under the action of Archimedean forces is carried out, which helps to increase the heat transfer ability of the device.

Claims (1)

Claim A heat transfer device comprising a vertical sealed housing with a heat supply zone on its side surface and located inside the housing. Parallel to its axis, a tubular channel with a heat removal zone on its walls, the space between the body and the channel walls being partially filled with liquid coolant and divided by height into sections by means of transverse partitions, characterized in that, in order to increase heat transfer ability, a system of longitudinal jumpers is additionally installed inside each section, union of the walls of the tubular channel and the separating section into two parts, wherein the heat supply zone is located in one of them, and partitions fitted with clearances relative to the housing and the longitudinal webs.