SU1443934A1 - Filter for purifying a liquid from mechanical impurities - Google Patents

Abstract

The invention relates to liquid screen filters, and can be used in the oil refining, petrochemical, and other industries of the industry and allows for improved filter performance. The filter contains a vertical housing 1 with co-located pipes 2 and 3 for the passage of the liquid to be cleaned and with a drainage pipe 4. The cavity of the skin 1 is divided by a partition 6 into the working chamber 7 and the chamber 8 for receiving the filtrate. In the partition 6 built

Description

forgod

(L

Van filter element 5 with an internal working surface. During the operation of the filter, the contaminated liquid enters the working chamber 7 and collides with the front part of the partition 6, separates into the upper and lower flows, from which, as a result of the loss of kinetic energy, the largest particles of impurities fall out.

When the liquid enters the cavity of the filter element in two streams, partial precipitation of impurity particles also occurs. The impurities remaining in the liquid are retained by the filter element 5. In this filter, a three-stage purification of the liquid from mechanical impurities takes place. 4 il.

one

The invention relates to liquid screen filters and can be used in the refining, petrochemical, oil and gas industries.

The purpose of the invention is to increase the filter performance.

FIG. 1 shows the proposed filter, a longitudinal section; in fig. 2 shows section A-A in FIG. 1 in FIG. 3 shows the node I in FIG. 1j in FIG. 4 — node II in FIG. one .

The filter contains a vertical housing 1 with coaxially arranged nozzles 2 and 3, respectively, for the introduction of contaminated liquid and the withdrawal of the purified liquid and with a drainage pipe 4 mounted in its bottom. A filtering element 5 is placed in the housing, the axis of which is offset relative to the axis of the housing 1. The cavity of the housing 1 is divided by a partition 6 into a working chamber 7 and a chamber 8 for receiving filtrate. In this case, the cross-sectional area S of the nozzle 2 should be equal to twice the cross-sectional area S of the working chamber 7 of the filtrate. The partition includes a front part 9, the length of which corresponds to the length of the filter element 5, as well as the upper 10 and lower 1 1 horizontal parts into which the ends of the element 5 are mounted. For sealing the element 5 elastic rings 12 are used. The filter element 5 can be supported by the lower end on the lower Part 11 of the partition 6. The filter works as follows.

The contaminated fluid enters through the nozzle 2 into the body cavity. Faced with frontal 9 partition 6, the liquid separates

o

five

0

five

0

five

0

on the upper and lower streams. At the same time, large particles of mechanical impurities, the kinetic energy, are deposited in the lower part of the housing 1. When fluid enters the cavity of the filter element 5 by two flows, gravitational forces also cause partial sedimentation of solid particles in the lower part of the housing 1. The remaining particles are retained by the filtering element 5 .

Thus, a three-stage purification of the fluid from mechanical impurities takes place in the filter.

Passing the filtrate in the opposite direction with the nozzle 2 closed, it is possible to regenerate the filter element 5 and remove sediment through fitting 4.

The application of the invention allows to significantly increase the operating efficiency of the filter due to the location of the filter element 5 outside the sedimentation of impurities, which leads to an increase in the performance of the filter as a whole.

Claims (1)

Invention Formula A filter for cleaning liquids from mechanical impurities, containing a vertical body with coaxially arranged branch pipes for the passage of the liquid being cleaned and a drainage branch pipe in its lower part, a partition located in the body, dividing it into a working chamber and a filtrate receiving chamber, and a filtering element with an internal cylindrical working surface, characterized in that, in order to increase 1443934 the upper element of the filter, interconnecting and lower horizontal parts, includes the frontal part of the filter, the lengths of which are fitted with filter ends, which corresponds to the length of the filter element. FI.3 FIG. 2 f1 / e