RU130870U1 - Deep water treatment device - Google Patents

Deep water treatment device Download PDF

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Publication number
RU130870U1
RU130870U1 RU2013112702/05U RU2013112702U RU130870U1 RU 130870 U1 RU130870 U1 RU 130870U1 RU 2013112702/05 U RU2013112702/05 U RU 2013112702/05U RU 2013112702 U RU2013112702 U RU 2013112702U RU 130870 U1 RU130870 U1 RU 130870U1
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RU
Russia
Prior art keywords
plates
nozzle
package
corrugated
nozzle block
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RU2013112702/05U
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Russian (ru)
Inventor
Михаил Геннадьевич Алфимов
Евгений Анатольевич Сластенин
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Общество с ограниченной ответственностью Научно-производственное предприятие "Контэкс"
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Priority to RU2013112702/05U priority Critical patent/RU130870U1/en
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Abstract

1. The apparatus for deep water purification, comprising a housing with fittings for introducing a multiphase mixture and outputting the separated phases, a distribution grid, partitions and a nozzle block made of a package of parallel corrugated plates placed along the height of the housing, characterized in that it is additionally equipped with a distribution grid and nozzle block with a package of corrugated plates, while the plates are installed vertically in the packages, oriented sideways towards the flow, and collected in a package so that the protrusions and depressions All the plates coincided and were opposite each other on the same line, and the distance between the plates was chosen so that the edges of the corrugated part of the plates overlap. 2. The apparatus according to claim 1, characterized in that the inlet of the multiphase mixture is located in the middle part of the housing, and the distribution grilles and nozzle blocks are equally spaced from the inlet of the multiphase mixture. The apparatus according to claim 1, characterized in that in the bottom of the hull is a system of erosion of bottom sediments. The apparatus according to claim 1, characterized in that the nozzle block is equipped with a washing system configured to supply washing water to the upper part of the block.

Description

This utility model relates to devices for separating a mixture of liquids of different densities into fractions, including in the presence of gas and particulate matter, and can be used in the oil industry for field preparation of oil with high water cut and for the process of deep purification of oil-containing formation water .
The prior art apparatus for preliminary dehydration of oil (Marinin N.S., Savateev Yu.N. Gas degassing and preliminary dehydration of oil in collection systems. M: Nedra, 1982. P.25, Fig. 19). The apparatus consists of a casing, three vertical partitions, water-oil and oil-gas level controllers, nozzles for introducing the mixture, and removing oil, gas and water. The disadvantages of this apparatus include the fact that the first partition is made so that the full flow of oil and water passes under the first partition and above the second partition, causing additional mixing of oil and water, and the sludge process is not further intensified.
Also known is a sump with a liquid hydrophobic filter for the purification of oil-containing formation water (RF patent No. 2417814, IPC B01D 17/028, publ. 05/10/2011), including a horizontal cylindrical container divided by baffles into compartments, a piping supplying formation water with a water distributor located above the oil-water phase separation, and the purified water drainage pipe. In this type of sedimentation tank, the block of nozzles (precipitators) is made of inclined plates parallel to each other. The disadvantage is that the indicated design of the nozzle block does not contribute to the coalescence of oil droplets, but only intensifies the separation of already formed oil droplets, which reduces the quality of the water in terms of the oil content in it.
Closest to the proposed technical solution according to the technical essence is a device for refining oil containing produced water - sedimentation tank (RF patent for utility model No. 23054, IPC B01D 17/00, C02F 1/40, publ. 05.20.2002), containing a housing with fittings for introducing a multiphase mixture and outputting the separated phases, a distribution grid, partitions and a shelf-type nozzle block, made of a package of parallel corrugated plates horizontally placed along the height of the housing.
The process of preparing the mixture in the sump (prototype) is as follows.
The multiphase mixture (oil, water, gas, mechanical impurities) enters the mixture inlet compartment for primary separation through the mixture inlet fitting. In the sump, the flow passes through the distribution grid, ensuring its uniform distribution over the entire cross section. Then the flow of the mixture enters the block shelving nozzles. The vertical partitions of the sump form a compartment of the nozzle block between them. The shelf unit block is made of corrugated plates parallel to each other horizontally positioned along the height of the sump, oriented along the direction of flow. Corrugated plates have longitudinal slots in the upper part of the corrugation, designed to separate the light phase (oil, gas) and collect it in the upper part of the compartment, and also have longitudinal slots in the lower part of the corrugation, designed to separate the heavy phase (mechanical impurities) and collect it at the bottom of the compartment. The separated light phase from its collection section, formed by the top plate of the nozzle pack and the sump body, is periodically discharged through the upper outlet fitting. The separated heavy phase from its collection section, formed by the lower plate of the nozzle pack and the sump body, is periodically discharged through the lower outlet fitting. The stream after phase separation enters the water collection zone and is discharged through the outlet fitting.
The disadvantages of the known device are:
1. During the operation of the sump (prototype) in the shelving unit blocks, longitudinal slots are clogged by mechanical impurities deposited on the corrugated horizontally placed plates, namely: the existing slots in the upper and lower parts of the plate corrugation, designed to separate the heavy and light phases, become clogged complete overlap and subsequent compaction of sediment. In such a situation, when the shelf unit is not working (since the mixture passes through the shelf unit without separating the light and heavy phases), the quality of the water preparation is significantly impaired, the performance and reliability of the sump are reduced. Also, with an idle shelf unit, the resulting hydrodynamic disturbances of the mixture flow lead to secondary pollution of water, which contributes to the deterioration of the quality of its treatment.
2. Used in the sump (prototype) flushing system from contamination of the shelf unit, which is used when disconnected from work and emptied, is not effective. The flushing system is used with the flushing water supply through the collectors located above the shelf nozzle block, in this case only the top nozzle plate is cleaned, the entire nozzle pack is not contaminated, and the nozzle block is not restored to functionality.
3. In this type of sump, the problem of collecting and removing the light phase (oil) from the water collection zone after treatment is not solved, namely, when the process of preparing water (high-water oil) is performed from the stream leaving the shelf unit after phase separation and entering after collection, a certain amount of oil is contained in the stream, which affects the deterioration of the quality of water treatment.
The technical task of the utility model is to create an apparatus for deep water purification that meets the set requirements for the quality of water treatment, which provides higher productivity under equal conditions and reliable and stable operation during its operation.
The technical result of using the proposed design of a deep water purification apparatus consists in increasing productivity by separating flows within the apparatus and applying a two-way operation scheme through two blocks of nozzles and improving the quality of the final separation products by ensuring coalescence of oil droplets with a repeatedly changing flow direction between adjacent block plates nozzles, as well as due to the sequential operation of two compartments (in two stages of cleaning) for the separation of multiphase mixtures .
The task underlying the present utility model, with the achievement of the claimed technical result, is solved by the fact that the apparatus for deep water purification, comprising a housing with fittings for introducing a multiphase mixture and outputting separated phases, a distribution grid, partitions and a nozzle block made of a package placed along the height of the housing parallel corrugated plates, is additionally equipped with a distribution grid and a nozzle block with a package of corrugated plates, while the plates are installed in packages vertically, oriented towards the flow with the side part and assembled in a package so that the protrusions and troughs of all the plates coincide and are opposite each other on the same line, and the distance between the plates is selected so that the edges of the corrugated part of the plates overlap.
In addition, the multiphase mixture inlet fitting is located in the middle part of the housing, and the distribution grilles and nozzle blocks are equally spaced from the multiphase mixture inlet point.
In addition, in the bottom of the hull there is a system of erosion of bottom sediments, consisting of water supply fittings for erosion of bottom sediments, several collectors equipped with erosion nozzles and located in the lower part of the apparatus, and fittings for discharging washed sediment into a special drainage system.
In addition, the nozzle block is equipped with a washing system configured to supply washing water to the upper part of the block, which consists of a washing water inlet fitting, washing collectors located above the nozzle block and supplying washing water under a certain pressure to clean the vertical plates of the nozzle block.
The supply of the deep water purification apparatus with an additional distribution grid and nozzle block with a package of corrugated plates and equidistant placement of lattices and nozzle blocks from the point of entry of the multiphase mixture allows significantly increasing the productivity of the device due to the separation of flows inside the apparatus and the application of the two-way circuit through two nozzle blocks.
The use of nozzle blocks of a new design with a vertical arrangement of corrugated plates, providing a longer duration of the working cycle with minimal clogging with mechanical impurities, and the use of an effective flushing system of nozzle blocks during maintenance work can increase the reliability of the device and its operational characteristics. In this case, the collection of corrugated plates in a package so that the protrusions and troughs of all plates coincide and are opposite each other on the same line, and the distance between the plates is selected so that the edges of the corrugated part of the plates overlap, and the quality of the final separation products is improved by providing coalescence of oil droplets with a repeatedly changing flow direction between adjacent plates.
A comparative analysis of the proposed technical solution with the identified analogues of the prior art, from which the utility model does not explicitly follow for a specialist in the separation of multiphase mixtures, showed that it is not known, and taking into account the possibility of industrial manufacturing of an apparatus for deep water purification, we can conclude about it eligibility criteria.
This utility model is illustrated by a specific example of the apparatus for deep water purification, which clearly demonstrates the possibility of obtaining the specified technical result. Various modifications and improvements are allowed that do not go beyond the scope of the utility model defined by the attached formula.
The apparatus for deep water purification is described further on the basis of the drawings, where:
- figure 1 shows a General view of the apparatus;
- figure 2 shows a package of corrugated plates of the nozzle block, top view.
In graphic materials, the corresponding structural elements of the apparatus for deep water purification are indicated by the following positions:
1. - input fitting multiphase mixture;
2. - water outlet fitting;
3. - oil outlet fitting;
4. - gas outlet fitting;
5. - outlet fitting for mechanical impurities;
6. - case;
7. - input device and distribution of a multiphase mixture;
8. - distribution grid;
9. - partition;
10. - nozzle block with a package of corrugated plates;
11. - nozzle block flushing system;
12. - technological hole of the partition;
13. - erosion system of bottom sediments;
14. - a device for collecting and removing purified water;
15. - input compartment multiphase mixture;
16. - compartment block nozzles;
17. - prefabricated cap;
18. corrugated plate block nozzles.
The apparatus comprises a housing 6 with a fitting 1 for introducing a multiphase mixture, fittings 3 and 4 for the exit of the light phase — oil and gas collected in the collecting cap 17, fittings 5 for outputting the heavy phase (mechanical impurities), fittings 2 for outputting purified water. The internal devices of the case include nozzle blocks 10, consisting of a packet of vertically arranged corrugated plates parallel to each other 18. A packet of corrugated plates is placed in windows cut in the partitions 9, vertically installed in the apparatus at the fluid inlet to the nozzle block 10. Moreover, the corrugated plates 18 are assembled in a package so that the protrusions and depressions of all the plates coincide and are opposite each other on the same line. The distance between the sheets, taking into account the size of its profile, is selected so that the edges of the bends (corrugated part) of the sheets overlap to ensure multiple changes in the direction of flow in the channels between adjacent plates. Partitions 9 divide the working volume of the apparatus into the mixture inlet compartment 15 (first cleaning stage) and compartments 16 of nozzle blocks (second cleaning stage). The composition of the internal devices also includes distribution grids 8 installed in front of the nozzle blocks 10. The mixture is introduced into the device through the mixture input and distribution device 7, the purified water is removed from the device through the purified water collection and removal device 14.
The inlet 1 of the multiphase mixture inlet is located in the middle part of the housing 6, and the distribution grilles 8 and nozzle blocks 10 are equally spaced from the inlet of the multiphase mixture. In the bottom of the casing 6 there is a system of erosion of bottom sediments 13, consisting of water supply fittings for erosion of bottom sediments, several collectors equipped with erosion nozzles and located at the bottom of the apparatus, and fittings for discharging the washed sediment into a special drainage system.
The apparatus for deep water purification works as follows. The flow of a multiphase mixture (water, oil, gas, mechanical impurities) is supplied to the apparatus for separation through the nozzle 1 and the input device 7 for input and distribution of the mixture. The input flow is made in the compartment 15 of the input multiphase mixture. In this compartment, the separation of the largest drops of oil and the separation of coarse mechanical impurities occur during dynamic separation of the flow mixture. The separated light phase (oil, gas) enters the collection cap 17, from which it is discharged as it accumulates through the oil outlet 3 and through the gas outlet 4. The use of a collecting cap 17 for collecting the light phase allows the maximum use of the working volume of the apparatus for separating the mixture. The separated heavy phase (mechanical impurities) enters the lower part of the apparatus. From the compartment 15 for introducing the multiphase mixture, the further movement of the flows occurs in two directions to the sides of the apparatus, that is, each flow enters a separate block of nozzles 10. This distribution of flows significantly increases the productivity of the apparatus. Depending on the volume of the processed mixture, it is possible to use the design of the apparatus with both bilateral and unilateral flow distribution (similar to the prototype). Before entering the nozzle blocks 10, the flows pass through the distribution grids 8, which ensure uniform distribution of flows over the entire cross section of the apparatus. In nozzle blocks 10, flows pass between corrugated vertically mounted plate plates 18. Such an organization of the movement of the mixture in the package of plates leads to a multiple change in the direction of individual flows in the channels between adjacent plates, while coalescence of the finely dispersed oil droplets contained in the mixture arriving for separation, followed by the movement of coarse oil droplets into the upper part of the working compartment 16 of the nozzle block. The corrugated surface of the nozzle plate 18 also contributes to the development of a coalescing effect with the formation of an oil layer on the surface, followed by separation of the oil phase into the upper part of the working compartment of the nozzle block. Also in the flows between the plates there is a hydrodynamic separation of finely dispersed mechanical impurities with their subsequent movement into the lower part of the compartment 16 of the nozzle block. The flow of water from the nozzle blocks 10 enters the collection zone of purified water and is discharged through the purified water collection and withdrawal device 14 and fitting 2 located on the bottoms of the apparatus. The light phase, separated in the compartments 16 of the nozzle block through a special technological hole 12 provided in the upper part of each partition 9, enters the mixture inlet compartment 15 and is discharged through the collecting cap 17 together with the volume of the light phase separated in the mixture inlet compartment 15. The mechanical impurities separated in the mixture inlet compartment 15 and the nozzle block compartments 16 are periodically removed from the compartments by separate nozzles 5 for the erosion of sediment during the use of the system 13 for erosion of bottom sediments during operation of the apparatus or are removed from the apparatus when performing cleaning from mechanical impurities. The apparatus has a system 11 for washing the nozzle block with rinsing water with its supply to the upper part of the block when it is dirty. Effective use of the flushing system of vertical corrugated plates from contamination is provided for when the device is turned off and empty. The washing system 11 of the nozzle block with washing water consists of a nozzle for introducing washing water, washing manifolds located above the nozzle block and supplying washing water under a certain pressure to clean the vertical plates of the nozzle block.
The manufacture of the proposed apparatus for deep water purification does not require the development of new equipment and the re-equipment of existing facilities, and the tools used are widely used in oil engineering, which confirms the possibility of practical implementation and achievement of the technical result.

Claims (4)

1. The apparatus for deep water purification, comprising a housing with fittings for introducing a multiphase mixture and outputting the separated phases, a distribution grid, partitions and a nozzle block made of a package of parallel corrugated plates placed along the height of the housing, characterized in that it is additionally equipped with a distribution grid and nozzle block with a package of corrugated plates, while the plates are installed vertically in the packages, oriented sideways towards the flow, and collected in a package so that the protrusions and depressions All the plates coincided and were opposite each other on the same line, and the distance between the plates was selected so that the edges of the corrugated part of the plates overlap.
2. The apparatus according to claim 1, characterized in that the inlet of the multiphase mixture is located in the middle part of the housing, and the distribution grilles and nozzle blocks are equally spaced from the inlet of the multiphase mixture.
3. The apparatus according to claim 1, characterized in that in the bottom of the hull is a system of erosion of bottom sediments.
4. The apparatus according to claim 1, characterized in that the nozzle block is equipped with a flushing system configured to supply flushing water to the upper part of the block.
Figure 00000001
RU2013112702/05U 2013-03-21 2013-03-21 Deep water treatment device RU130870U1 (en)

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Application Number Priority Date Filing Date Title
RU2013112702/05U RU130870U1 (en) 2013-03-21 2013-03-21 Deep water treatment device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2569844C1 (en) * 2014-10-17 2015-11-27 Игорь Анатольевич Мнушкин Dehydration device for oil and oil products, gas condensate, liquid hydrocarbons
RU206542U1 (en) * 2020-12-04 2021-09-15 Общество с ограниченной ответственностью Научно-производственное предприятие "Контэкс" Deep water purification apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2569844C1 (en) * 2014-10-17 2015-11-27 Игорь Анатольевич Мнушкин Dehydration device for oil and oil products, gas condensate, liquid hydrocarbons
RU206542U1 (en) * 2020-12-04 2021-09-15 Общество с ограниченной ответственностью Научно-производственное предприятие "Контэкс" Deep water purification apparatus

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