SU1245843A1 - Device for condensing mainly vapours and volatile products of polycondensation - Google Patents

Description

This invention relates to chemical technology of synthetic polymers and can be used in installations for the condensation of vapors and volatile products removed from continuously operating polymerization or polycondensation reactors.

The aim of the invention is to improve the efficiency of the device for the condensation of vapor and volatile products.

The drawing conventionally shows a device for the condensation of vapor and volatile products of polycondensation.

The device includes a housing 1 with nozzles 2 and 3 for supplying steam and condensate drain, installed with a slope in the direction of nozzle 3, respectively, a nozzle 4 for removing non-condensable gases, placed inside the housing 1 are removable cooling tubes 5 with partition walls fixed on them 6 with a gap between the edges of the partitions 6 and the walls of the housing 1, the gaps are made decreasing in the course of the steam, and in the partitions b from the side adjacent to the lower part of the housing 1, the holes 7 are made, the shirts 8 and 9 are heated and cooledwith individual coolant, respectively, installed outside the housing 1 in the zone of the steam supply pipe 2 and the condensate drain pipe 3, the air supply nozzle 10 connected to the housing 1 near the heating jacket 8. The pipe 3 is connected to a sealed collection I1 with a locking device 12.

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The device works as follows.

Pairs of volatile products of polycondensation or polymerization enter through pipe 2. Part of body 1 from side of pipe 2 is heated with coolant entering jacket 8, and part of body 1 from pipe 3 is cooled with coolant entering jacket 9. Coolant enters removable pipes 5. A pair of volatile products, not condensing, passes through the heating zone of the jacket 8, and then through the gaps between the cooled pipes 5, the partitions 6 and the walls of the housing 1 goes to the nozzle 3 with the subsequent removal of the condensate to collection 11. K vapor condensation occurs on the walls of the housing 1, partitions 6 and pipes 5.

The liquid component of the condensate flows through the openings 7 along the wall of the body mounted obliquely. The solid (pasty) component of the condensate is deposited on the walls of the housing I and the partitions 6.

Removal of the solid component is carried out by removing and cleaning the pipes 5 with partitions 6. Simultaneously with the partitions 6, the walls of the casing 1 are also cleaned. Non-condensable gases are discharged through the pipe 4 to the vacuum unit (not shown). Through the nozzle 10, air is supplied to the housing 1, which regulates the vacuum in the device, which dramatically expands and cools, which contributes to a more complete condensation of oligomers and by-products in the installation area of the choke 10.

Claims (3)

1. DEVICE FOR CONDENSATION OF PREVIOUSLY VAPORS AND VOLATILE POLYCONDENSATION PRODUCTS, comprising a housing with steam supply and condensate and non-condensable gas outlet pipes, removable cooling pipes placed inside the housing with staples fixed to them, staggered, with gaps relative to the housing , in order to increase efficiency, the housing is equipped with heating and cooling jackets with an individual coolant installed respectively in the area of the steam inlet pipe and condensate discharge nozzle, and an air supply fitting connected to the internal cavity of the housing, while the gaps between the edges of the partitions and the walls of the housing are made decreasing along the steam, and holes are made in the partitions from the side adjacent to the lower part of the housing. 2. The device according to π. 1, characterized in that it is equipped with a sealed collector connected to the condensate drain pipe through an additionally installed shut-off device. 3. The device according to π. 1, characterized in that the housing is installed with an inclination towards the condensate drain pipe. SU, „, 1245843