SU981810A1 - Heat exchanger - Google Patents

Description

(5) HEAT EXCHANGER

The invention relates to apparatus for treating plastic polymeric materials and can be used in the rubber industry as coolers of a rubber band, rubberized fabric after calenders, as well as a film of material on rotating drums. IRO-1560 refrigeration units are known, consisting of several rotating cooled drums, including pipes with spraying devices freely entering the roll cavities, funnels and drain trough 1. However, these multi-drum installations are ineffective due to the fact that the lower part of the roll is washed away heated water and practically does not participate in cooling. In addition, there is a large consumption of cooling water, as well as great difficulty in maintenance due to the large number of cooling drums. A roller cooling device is known, which is made according to the closed cooling method and includes a pipe with openings, which passes into the roller cavity through a stuffing box having a discharge channel. The water in this device enters the roll cavity through the pipe through the holes, fills the roll as a whole, cools its walls, and then the heated water is discharged from the roll through a channel in the packing device G2. This device is ineffective because when it exits the holes, the cold water immediately mixes with the heated water. The temperature difference between the cooled wall and the cooling water decreases, and as a result, the cooling efficiency deteriorates. Known cooling roller devices made by the open cooling method and including pipes

spraying devices freely entering the cavity, funnels and spruce trough.

The waste water in such devices fills the lower part of the roll cavity and flows through Ezoronka to the discharge trough 3.

The disadvantage of this roll-on-the-go; the device is that they (the roll suit is washed by the heated water and practically: they do not participate in the cooling.

A heat exchanger is known, containing a cylindrical case mounted inside it with radial through holes of 1 m, divided by a pers:, by the town, into hermetic compartments connected via orts to the inlet and outlet collector chambers, and through radial; The hole I to the hollow heat exchange elements L JHot this heat exchanger allows efficient cooling of the working medium compared to the specified cooling rolls 1, but it cannot be used in the processing of plastic polymeric materials without significant cooling water consumption.

Purpose of the Invention: Excessively efficient npk is used | .and a heat exchanger for processing plc styleKHX polymeric material (in,

The goal is achieved that in a hog exchanger, it contains (: m a cylindrical body, a shaft installed inside it with radial through holes, divided by a partition into hermetic compartments connected end to an inlet and outlet collector chambers, and through radial holes To the hollow heat-exchange elements, in the case with a x-gap gap with respect to it, there is additionally placed a cylindrical partition with openings connected to the heat-exchange elements by means of collectors placed along the recess uniformly around its circumference.

FIG. 1 shows the proposed heat exchanger, longitudinal section; in fig. 2 - section dD in fig., 1; in fig. 3 section bb in fig. 1.

The heat exchanger contains a housing, a shaft 2 with radial through holes (openings 3, divided by a transducer (Jdkoy (into tight compartments 5-6, subdivided | Torcled to r1) (1 / .1В (5d ii; and c-tme104

The discharge chamber B and through the radial holes 3 to hollow heat exchange elements 9 and 10, partition 11 with holes 12 connected to the heat exchange elements by means of collectors 13. The heat exchanger is operated as follows.

The cooling working medium (water) through the chamber 7 is fed into the compartment 5 of the shaft 2 and through the elements 9 through the collectors 13 enters the cavity between the copus 1 and the partition 11. Then from the cavity the cooling medium through the collectors 3 is fed into the elements 10, enters the shaft 6 2 and taken out of it through chamber 8,

Thus, using the floors of heat exchange elements, connected consecutively along the length of the hollow shaft to the compartments of the latter, ensures uniform and intensive cooling of the working heat exchange surface — the roll, which in the proposed heat exchanger is a partition II,

Formula inventions

A heat exchanger containing a cylindrical housing, a shaft with radial through holes mounted inside it, separated by a partition ia germs, ethereal compartments, connecting ciiHbie to the inlet and outlet collector chambers, and through the radial openings to hollow heads of exchangeable elements characterized in that, in order to increase efficiency when using a heat exchanger for processing plastic polymeric materials, and an annular gap housing, in relation to me. An orifice with openings connected to the heat-exchange elements by means of collectors placed along the partition evenly around its circumference.

Sources of information taken into account in the examination

1. Refrigeration unit IRO-15b0 Drawing If 2 +3551 B Rezinoproekt, Kuzpolimermash, 1972.

2 „Barsukov D.M. Kashin and apparatuses for rubber production, M ,, Hi mn, 1975, p. 87-88.

3. Ibid, p. 88-89.

-I. USSR author's certificate ff 731257, cl. F 28 D H / 02, 1973.

Claims (1)

Claim A heat exchanger comprising a cylindrical body, a shaft installed inside it with radial through holes, divided by a partition into sealed compartments connected at the ends to the inlet and outlet collector chambers to cut radial openings to the heat exchanger elements, which increases the efficiency when using a heat exchanger for processing plastic polymer materials, in the case with an annular gap with respect to it, a cylindrical partition with holes is additionally placed, connected to heat exchange elements by means of collectors placed along the partition evenly around its circumference.