RU2392034C1 - Separator - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention is intended for use in technological process of gas-liquid flow separation into components as internal separation device in process of steam generation and in chemical production devices. Separator comprises body with nozzles for entrance of gas-liquid mixture, outlet of dried gas, outlet of liquid, inside of which the following components are installed: packet of reflecting elements in the form of reverse funnels, circular packet of vertical louvers, perforated shell. Separator is equipped with drainage device arranged in the form of combs with slots, at the same time slots of each comb are communicated with each other by means of vertical slots. Packet of reflecting elements in the form of reverse funnels is fixed in slots of combs, at the same time profile of funnels is arranged as variable in height with highest points, which are equidistant from points of fixation, and is shaped in the form of arc, at the same time each funnel of reflecting elements pack is arranged as open.

EFFECT: improved efficiency of separation due to increased critical value of flow speed due to prevention of liquid film breakdown and repeated moistening of separate moisture flow.

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Description

The invention relates to heat transfer technology and is intended for use as a separation device when achieving the necessary process for separating a gas-liquid stream into components.

A vertical louvre separator is known, comprising a cylindrical body with distributing and collecting chambers and coaxial cylindrical louvre sections and hole sheets installed in the body, conical coaxial with the partition body between the sections, and guide vanes installed in front of the blind sections, the area of the perforated part of the hole sheets located in each section, less than the output area of the latter, while the extreme rows of holes are located at a distance from the outline of the output area of the section at least half the pitch between the holes. / Sorokin Yu.L. and others. Vertical louvre separator. SU. A.S. No. 908379. B01D 45/06. Priority - 01/14/80. Publ. Bulletin of inventions No. 8. 1982 - analogue. /

The disadvantage of this technical solution is that when implemented in a specific design of a compact separator will lead to a significant increase in the size of the latter. The separator of a ship’s nuclear power plant (NPP), due to the placement of other internal separation devices to perform a number of related and also responsible functions, excludes such opportunities.

A linear vertical steam separator is known, including a cylindrical body, a series of centrally located nozzles pushed one into the other and forming annular slots in the upper parts for the removal of steam, and a perforated shell mounted at the steam outlet from the separator, and it is equipped with vertical covering nozzles along the height of the separator , blinds, the passage channels of which are located radially, and their cross sections increase in the direction of steam movement. / Blinov K.A. et al. Linear vertical steam separator. SU. A.S. No. 101061. B01D 45/06. Priority - 09/20/54. Publ. Bulletin of inventions No. 12. 1955 - prototype. /

The disadvantage of this technical solution is that with rolls and trim, the water level in the separator rises against the wall of the housing on the side of the roll or trim and becomes unacceptably high, as a result, steam bubbling occurs through the through section of the perforated shell. Humidity increases stepwise, which has an extremely negative effect on the operation of a nuclear superheater. In addition, there is no organized drain of the separated liquid during the movement of the gas-liquid flow.

The technical result of the invention is to ensure the reliability of the flow of the separated liquid and to prevent secondary entrainment of fine droplets by a moving steam stream when the critical velocity value is exceeded due to the operation of the nuclear power plant in the variable load mode.

The specified technical result is achieved by the fact that the separator containing the housing with the inlet of the gas-liquid mixture, the outlet of the dried steam, the outlet of the liquid, inside of which are located: a package of reflective elements in the form of return funnels, an annular package of vertical blinds, a perforated shell, is equipped with a drainage device made in in the form of combs with slots, while the slots of each combs are communicated with each other by means of vertical grooves, and the package of reflective elements in the form of inverse funnels is strengthened comb slots, wherein the profile is formed funnels changing the height of the highest points equidistant from the attachment locations, and are shaped in the form of a ∩ (arc).

The essence of the invention is illustrated by drawings, where

figure 1 is a longitudinal section of a separator;

figure 2 is a cross section of a comb with a funnel;

figure 3 - the execution of an open package of funnels;

figure 4 is a top view of an open package of funnels.

The separator contains a housing 0, inside which there is a volume of water 1, as well as a nozzle 2 of its outlet, a nozzle 3 of the inlet of the gas-liquid flow, a diffuser 4, a nozzle 5 of the outlet of the dried steam, a packet of 6 reflective elements in the form of return funnels with the highest points A, equidistant from the places fastening, and with a profile opening angle (20-40) °, assembled with a clearance of (5-8) mm, varying in height (25-45) °, forming curved channels between each other, fixed in the combs 7 of the drainage device, an annular package 8 vertical blinds perforated both gull 9. In the combs 7 there are vertical grooves 10 made at an angle to the vertical (1-2) ° and recessed in the comb 7, the recess being directed against the direction of the steam flow during operation of the separator. From the edges of the package 6 of reflective elements in the form of return funnels, slots 11 are made, interacting with the groove 10 at an angle equal to the angle of attachment of the package 6 of reflective elements in the form of return funnels in the comb 7, and the profile of the package 6 of reflective elements in the form of reverse funnels has the form ∩, each funnel 6 of the package of reflective elements of the separation device at the attachment point, in comb 7, is made open.

The separator works as follows.

The gas-liquid flow enters the separator through the inlet pipe 3, enters the diffuser 4, where there is a slight change in the flow rate. Then it is distributed along the horizontal curved channels of the package 6 of reflective elements in the form of return funnels, where it is exposed to centrifugal forces. At the same time, finely dispersed liquid, as a heavier component, due to surface tension forces falls on the walls of the packet 6 of reflective elements in the form of inverse funnels and flows down due to the film effect along the surface and edges of the packet 6 of reflective elements in the form of inverse funnels to the combs 7, where, through the slots 11, the liquid enters the vertical grooves 10 connected to the volume of water 1. Steam, subjected to additional drying in the annular packet 8 of vertical blinds, bypassing the perforated shell 9, exits through the pipe to 5 exits of dried steam. The smooth surface of the profile of the package of 6 reflective elements in the form of a return funnel will contribute to a reliable drain of the separated liquid.

The use of the design of the separator of the proposed type allows efficient drainage of the separated liquid, moreover, by increasing the critical velocity of the gas-liquid flow. The separation process is improved due to the prevention of the breakdown of the liquid film and the elimination of re-wetting of the flow with the separated liquid, which negatively affects the operation of the nuclear superheater. The execution of the package of reflective elements in the form of return funnels open allows for reliable and convenient assembly.

Claims (1)

A separator comprising a housing with nozzles for the entrance of the gas-liquid mixture, the outlet of the dried vapor, the outlet of the liquid, inside of which there are: a packet of reflective elements in the form of return funnels, an annular packet of vertical blinds, a perforated shell, characterized in that it is equipped with a drainage device made in the form of combs with the slots, while the slots of each combs are communicated with each other by means of vertical grooves, and the package of reflective elements in the form of inverse funnels is fixed in the slots of the combs, while The funnel filter is made varying in height with the highest points equidistant from the attachment points and has the shape of an arc, with each funnel of the package of reflective elements made open.

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