RU2385178C1 - Separator - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention is used as in-separation device to separate gas-fluid flow into components. Proposed separator comprises housing with inlet and outlet branch pipes accommodating sections of horizontal and vertical shutters, perforated ring that makes separated cells and drain device. Bottom is rigidly jointed to perforated ring lower edges and inclined to said housing to make a gap there between. Note that housing lower part has cylindrical ring arranged aligned with separator in the cell between the section of vertical shutters and perforated ring. The height of said cylindrical ring exceeds lower edges of vertical shutter section by 10-15 mm. Formed cell between housing and cylindrical ring communicates with drain union via hole.

EFFECT: higher efficiency.

2 dwg

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 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 [1].

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 superheater of a nuclear power plant (NPP).

Known vapor separator for evaporative installations of sea and river vessels, containing a vertically arranged cylindrical hull, in the upper part of the water volume of which there are longitudinal partitions forming compartments, the latter being connected from below by overflow windows and equipped with a horizontal bottom having overflows on the periphery for overflow of liquid from compartments in the lower part of the water volume [2].

The disadvantage of this technical solution is that its implementation in a specific design of a compact separator will lead to an increase in the overall dimensions of the latter. The separator of the ship nuclear power plant does not have such an opportunity due to the placement of other internal separation devices for performing a number of related and also responsible functions. In addition, such a design will not give an objective picture of the state of the water level in the separator, since it does not provide for an appropriate signal about this.

The technical result of the invention is to ensure the reliability of the flow of separated liquid and the implementation of tight control of the water level in the separator.

The specified technical result is achieved by the fact that the perimeter of the lower end of the perforated shell is provided with a rigidly connected bottom with an inclination to the body and the formation of a gap with the latter, and a cylindrical shell is made coaxially to the separator in the compartment between the vertical blinds section and the perforated shell, with a height 10 ÷ 15 mm higher than the lower edges of the vertical blinds section, and the compartment formed between the body and the cylindrical shell is connected by an opening with a drain fitting .

An information search for scientific and technical achievements on this topic, a thematic analysis of the inventions of the VTTB patent fund to solve this problem did not reveal a combination of distinctive features similar and inherent to the features of the invention, which can be used as a separation device to achieve the necessary technological process for separating gas-liquid flow on components and tight control of the water level in the separator. In accordance with the current legislation of Russia, the proposed invention meets the criteria of "novelty", "prior art", "industrial applicability".

The essence of the invention is illustrated by drawings, where: in figure 1 is a longitudinal section of a separator;

figure 2 is a transverse section of the allocated compartment of the separator.

The separator comprises a housing 0, including an inlet pipe 1, a diffuser 2, a perforated sheet 3, horizontal 4 and vertical 5 shutters, a perforated shell 6, connected to the housing 0 with an inclined bottom 7, forming a gap with the housing, while drainage windows 8 are made in the bottom. In the lower part of the separator there is a shell 9 with a height exceeding the water level 10 in the separator, an outlet pipe 11 and a drain fitting 12. In the upper part there is a pipe 13 for the outlet of the dried steam.

The separator works as follows.

The gas-liquid flow enters the separator through the inlet pipe 1, enters the diffuser 2, where a certain change in the flow velocity occurs, is distributed due to the perforated sheet 3 through the channels of the funnels of the horizontal blinds 4, then it flows through the channels of the vertical blinds 5. Dried steam, distributed depending on the holes of the perforated shell 6, enters the compartment behind the perforated shell 6, from where it exits through the outlet pipe 13 of the dried steam, and the separated liquid flows into the volume of water 10 or enters the compartment in front of the perforated shell 6, from where it is removed through the drain fitting 12.

The use of the design of the separator of the proposed type allows efficient drainage of the separated liquid, guaranteed to control the volume of water in the separator, since an increase or decrease in the volume of water extremely negatively affects the operation of the NPP evaporator. In addition, the allocated volume of water using the shell allows you to more effectively organize its purge from salts.

Information sources

1. Blinov K.A. et al. Linear vertical steam separator. SU. A.c. N 101061. B01D 45/06. Priority - 09/20/54. Publ. Bulletin of inventions N 12, 1955 - analogue.

2. Sterman L.S. and other. Steam separator for evaporative installations of sea and river vessels. SU. A.c. N 151352. B01D 45/08. Priority - 01.02.62. Publ. Bulletin of inventions N 21, 1962 - prototype.

Claims (1)

A separator comprising a housing with inlet and outlet nozzles, inside which sections of horizontal and vertical blinds are reinforced, a perforated shell forming compartments, a drainage device, characterized in that the perimeter of the lower end of the perforated shell is provided with a rigidly connected bottom with a slope to the housing and a gap with the latter at the same time, drainage windows are made in the bottom, and a cylindrical shell is arranged in the lower part of the housing, located coaxially to the separator in the compartment between the vertical blinds section a perforated shroud, with a height exceeding the lower edge section of the vertical louvers 10 ÷ 15 mm, the chamber formed between the housing and the cylindrical sidewall of the hole communicates with the drain fitting.

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