SU1027502A1 - Plant heat exchange pipe - Google Patents

Description

The invention relates to heat engineering and can be used for heat exchangers of forced liquid cooling systems used to provide thermal conditions for microelectronic equipment.

A known flat heat exchanger tube containing wire ribs passing through the inner cavity of the tube and through holes in its walls and fixed on the outer surface of the tube LI.

However, due to the insignificant size of the external fins, turbulization behind the external working medium is insignificant.

Also known is a flat heat exchange tube with wire fins arranged in rows and passing through the internal cavity of the pipe and through holes in its wall onto the external surface of the pipe 2.

The prior art tube is characterized by an insufficient heat exchange rate due to the low efficiency of the outer ribbing.

The purpose of the invention is to intensify heat transfer.

The goal is achieved by the fact that in a flat heat exchange tube with wire fins arranged in rows and passing through the internal cavity of the pipe and through holes in its wall onto the external surface of the pipe, the fins located outside the external surface of the pipe are bent under angle to its surface, with the bends in each row are directed in opposite directions.

The finned areas located outside the outer surface of the pipe may also have a zigzag. different shape and be made of spring material.

FIG. 1 shows an element of a flat heat exchanger tube with wire fins (parts of the fins located outside the outer surface of the tube are bent at an angle to its

surfaces, and the bends in each row are directed in opposite directions. In FIG. 2 - an element of a flat pipe with parts of the fins located outside the outer surface of the pipe, having a zigzag shape / 1y.

In the flat heat exchange tube 1, the wire fins 2 passes through the internal cavity and through holes 3 and 4. The fins sections 5 that are extended beyond the outer surface of the pipe have opposite ends of bends made at an angle to the surface of the pipe. The fins sections 5 may have a zigzag forg-gu and form spring clips for various elements when using spring material. Wire finning is obtained by passing wire segments through openings 3 and 4 and subsequent hermetic joining, for example, by soldering in salts.

One of the working environments; the passage inside the pipe 1 is actively turbulized when flowing around the fins 2. The heat of the internal working medium is removed through the pipe walls to the medium washing the outer surface of the pipe. The finning areas located inside the pipe and extended beyond its outer surface perform the function of direct heat sinks connecting the internal cavity of the pipe c. external working environment. The spring clamps allow the fixation of heat-generating objects installed directly on the outer surface of the pipe 1.

The application of the proposed heat exchange pipe. It allows to intensify heat exchange in the process of operation of the heat exchanger apparatus, as well as to increase its operational reliability by increasing the mechanical rigidity in the presence of thin walls and thereby reducing the mass of the apparatus.

Claims (2)

1. A PLANE HEAT EXCHANGE PIPE with wire finning located in rows and passing through the inner cavity of the pipe and through holes in its wall to the outer surface of the pipe, different. I mean that, in order to intensify heat transfer, fins located outside the outer surface of the pipe are bent at an angle to its surface, and the bends in each row are directed in opposite directions. 2. Pipe. By π. 1, characterized in that the sections of the fins located outside the outer surface of the pipe have a zigzag shape and are made of spring material.