RU2422189C1 - Separator - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: proposed device is intended for separation of gas-fluid flow into components. Separator comprises casing with gas-fluid mix inlet branch pipes, dried steam outlet branch pie and fluid outlet branch pie that houses: package of reflecting element made up of inversed funnels, ring package of vertical shutters, perforated ring, drain device made up of cobs with slits. Slits of each comb are intercommunicated via vertical grooves while package of reflecting element made up of inversed funnels is arranged in comb slits. Slits communicated with remote grooves feature larger inclination than those closer to reflecting elements package made up of inversed funnels.

EFFECT: improved and simplified assembly, higher efficiency of separation.

4 dwg

Description

The invention relates to a heat exchange technique 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 to 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 step between the holes / Sorokin Yu.L. and others. Vertical louvre separator. Auto St SU 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 its implementation 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. Auto St SU 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 a very 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 speed value is exceeded due to the operation of the nuclear power plant in the mode of variable loads.

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, and equipped with a drainage device made in the form of combs with slots, while the slots of each comb are communicated with each other by means of vertical grooves, and a packet of reflective elements in the form of inverse funnels eplen slots in the comb, with a slot communicated with a remote slits have a greater slope than the slit approximate to a package of reflective elements in the form of inverse groove funnels.

The essence of the invention is illustrated by drawings, where:

figure 1 presents a longitudinal section of a separator;

figure 2 is a section of a package of funnels with a mounting location in the comb of the latter;

figure 3 is a view B of the section of the package of funnels with the mounting location in the comb;

figure 4 is a view In section of a package of funnels with a mounting location in the comb.

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 stream, 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 forming curved channels between themselves and fixed in the combs 7 of the drainage device, an annular packet 8 of vertical blinds, a perforated shell 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, and the recess is directed against the direction of 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, 12 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 slots 11 are made with a greater inclination than the slots 12 of the approximate to the package 6 of reflective elements in the form of inverse funnels of the groove 10.

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. In this case, 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, flowing due to the film effect, on 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, 12, 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 approx. 5 drained steam output.

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 has an extremely negative effect on 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 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 Slots with a distant groove have slopes that are more inclined than those of a reflective element close to the packet in the form of inverse funnel grooves.

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