SU1581341A1 - Installation for separating mixture of "oil in water" type - Google Patents

Abstract

The invention relates to the field of preventing pollution of the sea by oil and can be used to purify water from oil contained in waters discharged overboard. The aim of the invention is to increase the resource effective installation. The installation contains an oil trap, a reversible pump of a volumetric type, a filter for mechanical impurities, a storage tank, an after-treatment filter of the adsorption type, nozzles for the input of the fluid to be cleaned and for the withdrawal of purified liquid, check valves and control valves. Water purification is carried out in two stages. At the first stage, in the oil trap, large particles of the dispersed phase and oil films are separated from the water, as well as solid impurities in the filter of mechanical impurities with an accumulation of pre-treated water in the storage tank. In the second stage, the pre-purified water from the storage tank passes through an after-treatment filter of the adsorption type, where it is freed from the emulsified dispersed phase and drained overboard. 1 il.

Description

one

(21) 4402609 / 31-26

(22) 04/04/88

(46) 07/30/90. Bul P 28

(71) Leningrad and Technological Institute of the Refrigeration Industry

(72) A.A. Evdokimov, N.G.Aslanov and A.M. Leontyev

(53) 628.314.2 (088.8)

(56) Nunuparov S.M. Prevent pollution of pestilence from ships. M .: Transport, 1985, p.88, fig.11

(54) INSTALLATION FOR SEPARATION OF A TYPE MIXTURE OIL IN WATER

(57) The invention relates to the field of preventing pollution of the sea by oil and can be used to purify water from oil contained in waters discharged overboard. The aim of the invention is to increase the resource

efficient installation operation. The installation contains an oil trap, a reversible pump of a volumetric type, a filter for mechanical impurities, a storage tank, an after-treatment filter of the adsorption type, nozzles for introducing the cleaned and discharging purified liquid, check valves and control valves. Water purification is carried out in two stages. In the first stage, in the oil trap, large particles of the dispersed phase and oil films are separated from the water, as well as solid impurities in the filter of mechanical impurities with an accumulation of previously purified water in the storage tank. In the second stage, the pre-purified water from the storage tank passes through an after-treatment filter of the adsorption type, where it is freed from the emulsified dispersed Laz and discharged overboard. 1 il.

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with

The invention relates to the prevention of pollution of the sea by oil and can be used to purify water from oil contained in waters discharged overboard.

The purpose of the invention is to increase the effective resource of the installation.

The drawing shows the installation, general view.

The installation contains an oil trap 1, a reversible pump 2 of the volumetric type, a filter of mechanical impurities 3, a storage tank 4, an after-treatment filter 5 of the adsorption type, non-return valves 6-10 and a regulating 11.

Oil trap 1 consists of body 12, which is concentrically embedded

three cylindrical partitions, one of them 13 is placed along the axis of the body, forming the fluid supply zone of the inlet 14 and the primary settling zone, the second cylindrical partition 15 forms with the partition 13 a zone of the clarified lower layer, and the third partition 16 forms the upper partition (15 hydrocarbon layer. The annular channel of the primary upholding zone of the clarified layer (partitions 13 and 15) communicates with the annular channel of the secondary zone (partition 16 and body 12) through the nozzle 17, while the annular channel of the secondary zone contains a nozzle 18 for pumping, and the primary

ate

00

with

four

the upper layer (hydrocarbon) layer has a zone with an annular channel (partitions 15 and 16) through the pipe 19.

The device works as follows.

The water contaminated with oil products is pumped through the inlet 14 to the primary sedimentation zone of the oil trap separation 1. In the separation zone, the mixture stratifies: the upper layer, as it accumulates, flows through the nozzle 19 into its accumulation zone (annular channel between partitions 15 and 16) and the lower layer flows into the annular channel (partition 14 and 15) of the primary settling zone, and then through the branch pipe .17 flows into the accumulation zone of the annular channel (partition 16 and body 12). The pre-cleaned fluid through the pipe 18, lowered to the bottom of the annular channel, is pumped over by pump 2 through the filter of mechanical impurities 3 to storage tank 4. As tank 4 or oil products in the oil trap 1 is filled, pump 2 is turned off and reversible, and check valves 7 and 9 are closed, and 6.8 and 10 are opened. In this mode, the pump 2 directs the liquid from the storage tank 4 through the after-treatment filter 5 overboard. At the same time, the purified water is pumped into the oil trap 1, creating an overpressure in it, as a result of which the valve 6 is closed, and the accumulated upper layer is drained into the collector and separated.

oil product. As far as you finish pumping liquid from tank 5

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thirty

40

and the accumulation of the mixture in the collection well is repeated.

According to the proposed scheme, due to the oil trap, it is possible to separate the film and coarse oil product from the processed mixture before the mixture reaches the pump and the filter of mechanical impurities.

The two-stage water purification with filling the storage tank in the first stage and its release in the second one allows using the pump of the same power, but with its greater load over time.

i

In the totality of signs

The proposed installation is characterized by an effective work resource of at least 250 hours without interfering with its operation.

Claims (1)

Invention Formula An installation for separating an oil-in-water mixture, including inlet and outlet pipes, a mechanical impurity filter connected to a pump, and an after-treatment filter of the adsorption type, so that, in order to increase the efficiency of the installation, it is equipped with an oil trap - with a pump, storage tank, connected with a check valve with a mechanical impurity filter, a bypass line with a check valve connecting the storage tank with the pump, and a line with a check valve connecting the pre-treatment Filtering with a pump, wherein the supply conduit has a check valve. # 3 prefabricated well