CS263373B1 - A method for multi-stage liquid separation and apparatus for performing this method - Google Patents

Abstract

A method and device for a multi-stage separator for aggressive media for separating a liquid phase from a mixture with gases or vapors are presented, made of a series of interconnected tubes, most preferably rectangular, with the lower part of the vertical tubes being for vapors or gases enclosed by the separated liquid and the upper part of the vertical tube serving to discharge gases or vapors into another vertical tube or out of the separator. The upper part of the hydraulic overflow of the liquid from the separator is connected to the gas space of the separator or to the outlet pipe for pressure equalization. The multi-stage separator consists of tubes of different cross-sections, with the tubes of smaller diameter extending beyond the wall of the tube with a larger cross-section.

Description

(54) A multi-stage liquid separation method and an apparatus for carrying out this method

A method and a device for a multi-stage separator for aggressive media for separating a liquid phase from a mixture with gases or vapors made of a series of interconnected tubes, preferably rectangular, are provided, wherein the lower part of the vertical tubes is for vapors resp. gases enclosed by a separate liquid and the upper part of the vertical pipe is used to vent gases or vapors to another vertical pipe or pipe. out of the separator. The upper part of the hydraulic liquid overflow from the separator is connected to the gas space of the separator or to the discharge line for pressure equalization. The multi-stage separator consists of pipes of different cross-sections, with pipes of smaller diameter extending beyond the wall of the pipe with a larger cross-section.

The invention solves the multistage separation of liquid and gaseous gases. a vapor-liquid mixture of aggressive media using a device made of durable tubular material.

Degassing the mixture of degassing resp. the pair is done in different separators without built-in, with different built-in units, with cartridges, in centrifugal separators and so on. (Perry: Chem. Eng. Handbook, 4th Ed. Me Graw Hill 1963; W. Strauss: Industrial Gas Cleaning, Pergamon Sress Oxford, 2nd Ed. 1975; 0. Štorch: Industrial Gas Purification and Exhalation by Separators, SNTL, Prague 1974, USSR 768 431, US 55-20722, US 2,935,639, US 818 657, US 56-37 010, US 799 786, OSA 4 290 791, USSR 982 743, USSR 198 924, USSR 982 742 and others). For separating aggressive media, these apparatuses need to be treated or made of durable material at the same time, and the use of proven types of separation devices is limited by the design characteristics of the respective durable material. Repairing the device, e.g., overlaying with a durable material, is difficult and often very costly. Repaired devices are malfunctioning and have reduced efficiency. For use in systems with different pressures, they require different additional equipment.

The above-mentioned drawbacks are overcome by the invention, which consists in separating the liquid from gases and / or vapors in aggressive and other media by means of a system of interconnected tubes of equal or unequal diameter at different nodes, preferably at 90 ° or approximately 90 ° angle. It is preferable to separate said phases using pipes of uneven diameter, the mixture entering the individual stages of the separator through a pipe of smaller diameter which extends over the wall of the pipes of a larger cross-section. The gaseous and / or vapor phase is discharged from the last stage of the separator and the liquid phase from the individual stages of the separator is discharged through a pipe through the hydraulic closure of the separator with an equalizing tube, ensuring the separator operation even at different pressures in the separator and downstream. The separation of the liquid phase from the gas and / or vapor phase as described above is carried out in an apparatus comprising an inlet pipe, a first stage separator tube, transfer tubes, a further stage separator tube, a liquid phase collection tube, a gas outlet tube and and / or vapor and liquid phase outlet pipe. The separator also includes a hydraulic closure, the upper part of which is connected to the gas and / or steam space of the separator by means of an equalizing pipe.

An advantage of the multi-stage separation device according to the invention besides the hitherto mentioned, i.e. The simple construction of the available durable material with the possibility of multi-stage separation of aggressive media is also that the separator can be easily installed, especially in operating sets, in which there is a lack of space for placement of conventional separators, which are usually bulky devices. The separator can also be used in vacuum systems. Strain in systems with different pressure on the inlet side of the mixture respectively. gas removal and on the side of the separate liquid handling and saline side in systems operating at reduced temperature to isolate the equipment.

In FIG. 1 shows a four-stage separator constructed of horizontal and vertical tubes. In FIG. Figures 2 to 5 show four more examples of the separator according to the invention, which differ in construction and / or construction. mutual arrangement of individual separator elements.

Example

In the apparatus of FIG. 1, the four-stage liquid separation is carried out in the following manner. Steam - resp. the gas-liquid mixture enters the separator through an inlet pipe 2; a part of the liquid is separated in the first stage of the separator 2 and flows into the collecting pipe 2; the gas-liquid mixture depleted of a portion of the liquid then enters through the connecting tube 2 o of the further stages of the separator 6, in which the liquid phase which flows into the collecting tube 2 is gradually removed. · The liquid phase from the collecting pipe 2 flows through a hydraulic shutter 2 »which is connected by an equalizing pipe 2 oo g. steam separator. The liquid phase from the separator is discharged through the liquid phase outlet pipe 7.

In the devices of FIG. 2 to 5, the separation of the liquid from the gaseous and / or vapor phase is carried out in a similar manner.

Claims (4)

OBJECT OF THE INVENTION Method of multistage separation of liquid from gases and / or vapors, in particular for aggressive media, characterized in that it is carried out in a system of interconnected tubes of the same or uneven diameter at 30 ° to 150 °, preferably at 90 ° angle, as multistage The mixture passes through an inlet pipe and a connecting pipe of smaller cross section extending through the wall of the individual stages of the separator and the separated liquid phase is discharged from the collecting pipe through a hydraulic cap with an equalizing pipe. 2. Apparatus for carrying out the method according to claim 1, characterized in that it consists of interconnected tubes of the same and / or unequal diameter and / or cross-section at angles of 30 ° to 150 °, preferably at 90 degrees, the pipe of the first stage of the separator ( 2) is equipped with the inlet pipe (1) of the mixture, the pipe of the first stage of the separator (2) and the pipes of the individual stages of the separator (4) are connected to each other by interconnecting tubes (3); (4) are terminated by a liquid collecting pipe (5), which is connected by a liquid phase outlet pipe (7) and the last stage of the separator (4) is provided with a gas and / or vapor outlet pipe (6). Device according to claim 2, characterized in that between the collecting pipe (5) and the liquid outlet pipe (7) there is a hydraulic closure (8), the upper part of which is an equalizing pipe (9) connected to the steam and / or gas space of the separator (4). ). Device according to Claims 2 and 3, characterized in that the pipes of smaller diameter are the inlet pipe (1), the connecting pipes (3) and the equalizing pipe (9) and overlapping the pipes with a smaller cross-section overhead pipes with a larger cross-section.