SU1518642A1 - Condenser - Google Patents

Abstract

The invention relates to refrigeration, in particular to the design of refrigeration units. The aim of the invention is to increase the efficiency of the condensation process. This is achieved by placing in the condensate collector 7 an additional cooling device 8, which can be made in the form of a coil. In addition, on the inner and outer surfaces of the cylindrical porous cermet wall of the cylindrical partition 4 can be made screw grooves 9 or placed screw impermeable inserts, made in steps equal to the step of winding pipes with cooling fluid. 3 hp f-ly, 4 ill.

Description

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The invention relates to refrigeration engineering, in particular to the design of compression refrigeration units,

The purpose of the invention is to increase the efficiency of the condensation process.

FIG. 1 shows a capacitor, a general view; in fig. 2 - condenser, additional cooling device of which is placed in the internal cavity formed by a metal-ceramic partition; in fig. 3 - a capacitor, on the metal-ceramic wall of which there are screw grooves; in fig. 4 - placed screw impermeable inserts.

The condenser contains a sealed cylindrical case 1 with an inlet nozzle 2 and a nozzle for removing condensate 3. The case is provided with a cylindrical partition 4 and with a vertical cylindrical wall of porous cermet material and an impermeable bottom mounted coaxially with the case.

Inside the wall of the partition there are pipes with cooling coolant 5. The pipes are made in the form of a coil (Fig. 1). The cylindrical partition divides the internal cavity of the housing into two parts: a cavity for supplying steam 6 and a condensate trap -7. In the condensate collector placed additional cooling device 8, made in the form of a coil (Fig. 1). The condenser works as follows.

The vapor-gas mixture through the pipe 2 enters the cavity 6 of the condenser passes through the permeable walls of the cylindrical partition 4, where it is cooled by a cooling coolant flowing through the tubes placed inside the partition.

The vapor-gas mixture, when cooled, is condensed inside the walls of the porous prefab 4. The condensate saturates the porous structure and squeezes the flow of non-condensed vapor onto the surface of the vertical cylindrical porous walls of the cylindrical partition, which communicates with the cavity of the collector 7.

The condensate drains from the walls of the partition 4 and accumulates in the condensate collector. Uncondensed steam passed through the porous walls of the partition 4 into the condensate collector 7, up to

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is condensed on an additional cooling device 8, which allows for a constant pressure drop across the porous partition 4, thereby allowing the condensate and condensed steam to move through the latter, as well as to control the condensation process.

The dimensions of the condensate can be reduced by using the internal cavity of the cylindrical partition as the condensate collector (Fig. 2). In this case, an additional cooling device, made in the form of a coil, is placed in the internal cavity of the cylindrical partition. Outside of it there is a cavity into which a vapor-gas mixture is fed through pipe 2.

The condensate is discharged through the pipe 3 from the inner cavity formed by a cylindrical partition.

The efficiency of the condensation process can be improved by choosing the optimal design of the vertical cylindrical porous cermet partition wall (Fig. 3, 4).

The vapor-gas mixture, the passage through the porous material of the cylindrical partition 4, will move along the path of least resistance, i.e. Most of the steam will pass through portions of the porous walls of the partition that are distant from the pipes with cooling coolant 5.

Screw grooves 9, made on the outer and inner surfaces of the partition wall with a step equal to the step of winding the pipes with cooling coolant, and without displacement relative to them, reduce the flow resistance when moving in close proximity to the pipes with cooling coolants, thereby increasing the flow rate steam near the pipes, and therefore heat exchange is intensified.

Directing the flow of steam to the pipes with cooling coolant can be placed on the outer and inner surface of the porous wall of the septum screw impermeable inserts 10 (Fig. 6). The pitch of the screw impermeable inserts is equal to the pitch of the winding of the pipes with the cooling coolant and they are placed with an offset equal to half the pitch of the winding of the pipes with the cooling coolant. Bandage impermeable

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The stakes organize the movement of ara flow near pipes with a cooling heat carrier, which increases the efficiency of heat exchange.

Claims (4)

1. A capacitor consisting of a sealed cylindrical body with nozzles for steam supply and condensate drainage, a cylindrical porous cermet partition with an impermeable bottom, inside the walls of which there are tubes for cooling coolant installed coaxially with the body and forming a cavity in it steam supply and condensate trap, characterized in that, in order to increase the efficiency of the condensation process, an additional cooling device is placed in the condensate trap. 2. The capacitor according to claim., Characterized by the fact that 18642 An integral cooling device made in the form of a coil and a condensate collector are placed in the internal  - cavity formed by a cylindrical porous cermet partition. 3. Condenser according to claim 1, characterized in that on the inner and outer surfaces of the cylindrical porous cermet ceramic wall of the cylindrical partition there are screw grooves with a pitch equal to the step of winding the pipes with cooling coolant, and are placed without displacement relative to them. 4. Condenser according to claim I, characterized in that on the inner and outer surfaces of the cylindrical porous cermet ceramic wall of a cylindrical partition there are screw-tight impermeable inserts made in steps equal to the step of winding the pipes with cooling coolant and placed offset to the coil arrangement equal to half step winding pipes. (fuel  I GM I (pueZ Editor V.Kovtun Compiled by N. Alekseev Tehred L. Serdyukova Order 6593/44 Circulation 570 VNISh of the State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5, Raushsk nab. Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 (rigging Proofreader O. Tsiple Subscription