RU31519U1 - LIQUID CLEANING UNIT - Google Patents

Description

2003116567

nipps

2 0.03 1 1.5 5 7

 04 C 3/00, F 04 F 5/54

LIQUID CLEANING UNIT

The utility model relates to the field of chemical technology apparatus and is intended for the purification of liquids both from suspended solids and from salts in a dissolved state. The unit can be used for the treatment of wastewater, contaminated water and other liquids, both for technological and for domestic purposes.

Known separator apparatus for cleaning liquids from mechanical impurities, made on the basis of a hydrocyclone unit (RU No. 2115483, RU No. 2180272), in which the liquid is separated from components with a different density under the action of centrifugal force. The disadvantages of such installations include the impossibility of purification from dissolved substances.

The dependence of the degree of purification on the ratio of the densities of the separated components to the need to design additional hydrocyclone elements, for example, is known

a hydrocyclone for wastewater treatment (RU No. 2155641, Bull. No. 25, 2000), in the housing of which an additional cylindrical perforated partition is installed to increase the efficiency of water treatment. The disadvantage of hydrocyclone is the relatively high hydrodynamic resistance of the apparatus, which reduces the efficiency, and also the inability to clean from dissolved substances.

Closest to the proposed utility model is a primitive hydrocyclone (Stabnikov et al. Processes and apparatuses for food production. - M .: Food industry, 1971, p. 183-187), containing a vertical cylindrical housing, an inlet pipe on the cylindrical part of the housing located tangentially to the axis of the cylinder, the upper and adjustable lower drain pipes for drainage, respectively, of the cleaned liquid and concentrated sludge.

The disadvantage of a hydrocyclone is the separation of only suspended solids.

The technical task is to create conditions for increasing the ratio of the densities of the separated components by transferring the liquid into the vapor phase.

The purpose of the utility model is to create a zone of local boiling of liquid at the entrance to the hydrocyclone body, which significantly increases the separating effect of the hydrocyclone and promotes the release of dissolved substances in the form of solid particles.

This goal is achieved by the fact that the proposed unit for cleaning liquid, including a hydrocyclone containing a vertical cylindrical housing, an inlet pipe on the cylindrical part of the body located tangentially to the axis of the cylinder, the upper and lower drain pipes for draining, respectively, the cleaned liquid and concentrated sludge, characterized the fact that in front of the inlet pipe of the hydrocyclone an ejector is additionally installed to form a vapor-liquid mixture, while the mount of the ejector and the inlet cutting of a hydrocyclone has the ability to control the distance from the exit cut of the ejector nozzle to the axis of rotation of the flow in the hydrocyclone. Mounting the ejector and the inlet of the hydrocyclone

can be made in the form of a threaded connection equipped with a lock nut.

The ejector is selected from the technical solution given in patent RU No. 2115027, Bull. No. 19, 1998. The main elements of the ejector are the inlet, the active nozzle and the confuser chamber.

In FIG. presents a schematic section of a unit for cleaning liquid.

The proposed utility model works as follows: the flow of the liquid being cleaned is fed to the inlet of the ejector 1 and enters the active nozzle 2, at the outlet of which, due to the kinetic energy of the flow, local boiling of the liquid occurs in the conical confuser chamber 3 and the formation of a vapor-liquid mixture. At the time of boiling, dissolved substances and suspended impurities are released in the form of solid microparticles. These microparticles are separated in hydrocyclone 4 from a vapor-liquid mixture

due to centrifugal forces, they are discharged in a concentrated form through the drain pipe 5. The steam formed at the exit from the nozzle condenses in the hydrocyclone body and the purified liquid is discharged through the upper pipe 6. A threaded connection is provided for regulating the distance from the exit cut of the ejector nozzle to the axis of rotation of the stream in the hydrocyclone equipped with a lock nut 7.

Achieving the goal is due to the fact that from the local boiling zone located in the confuser chamber of the ejector,

the vapor-liquid mixture enters directly into the hydrocyclone, where due to centrifugal forces, separation occurs with a high degree of efficiency, including the release of dissolved substances in the form of solid particles. The optimization of the cleaning process is carried out by adjusting the distance from the outlet cut of the ejector nozzle to the axis of rotation of the flow in the hydrocyclone.

Claims (2)

1. The unit for cleaning liquid, including a hydrocyclone containing a vertical cylindrical housing, an inlet pipe on the cylindrical part of the body located tangentially to the axis of the cylinder, upper and adjustable lower drain pipes for draining, respectively, the cleaned liquid and concentrated sludge, characterized in that before an ejector is additionally installed by the inlet of the hydrocyclone to form a vapor-liquid mixture, while mounting the ejector and the inlet of the hydrocyclone has the ability adjusting the distance from the exit section of the ejector nozzle to the axis of rotation of the flow in the hydrocyclone. 2. The assembly according to claim 1, characterized in that the mounting of the ejector and the inlet of the hydrocyclone is made in the form of a threaded connection equipped with a lock nut.