SU812826A1

SU812826A1 - Device for mixing water-oil emulsion with chemical reagent

Info

Publication number: SU812826A1
Application number: SU792786035A
Authority: SU
Inventors: Наиль Исмагзамович Хисамутдинов; Марсель Мухаметович Губайдуллин; Аюп Галеевич Сафин; Ахтям Аглямович Фасхутдинов; Ахат Габдулхакович Тахаув
Original assignee: Татарское Территориальное Производственноеуправление Химизации Нефтянойпромышленности "Татнефтепромхим"
Priority date: 1979-06-04
Filing date: 1979-06-04
Publication date: 1981-03-15

Description

Изобретение относится к устройствам для смешения поступающей со скважин нефти с химреагентом и может применяться в нефтехимической и нефте- , перерабатывающей промышленностях.The invention relates to a device for mixing oil from a well with a chemical agent and can be used in the petrochemical and petroleum refining industries.

Известно устройство, в котором осуществляется смешение химреагента с нефтью, выполненное в виде форсунки для распыления жидкости [1].A device is known in which a chemical is mixed with oil, made in the form of a nozzle for spraying a liquid [1].

Недостатком данного устройства является то, что смешение веществ происходит по поверхности потоков, а не внутри каждой диспергированной частицы Наиболее близким к предлагаемому по технической сущности и достигаемому результату является устройство для смешения двух компонентов, включающее вертикальную емкость, эжекционный узел смещения потоков водонефтяной эмульсии и химреагента, выполненный в виде трубопровода подачи водонефтяной смеси, внутри которого соосно установлен коллектор ввода химреагента [2].The disadvantage of this device is that the mixing of substances occurs on the surface of the flows, and not inside each dispersed particle. The closest to the proposed technical essence and the achieved result is a device for mixing two components, including a vertical container, an ejection unit for displacing the flows of oil-water emulsion and chemical agent, made in the form of a pipeline for the supply of oil-water mixture, inside of which a collector for introducing a chemical reagent [2] is coaxially mounted.

Недостатком этого устройства является неравномерное распределение и значительное количество химреагента для насыщения водонефтяной смеси.The disadvantage of this device is the uneven distribution and a significant amount of chemical reagent for saturation of the oil-water mixture.

Цель изобретения - равномерное распределение малых доз химреагента .The purpose of the invention is the uniform distribution of small doses of a chemical agent.

в смеси при одновременном уменьшении его расходов за счет создания большей удельной поверхности раствора химреагента на границе разделяемых фаз. Цель достигается тем, что в устройству емкость снабжена перфорированным диффузором, разметенным в нижней ее части.in the mixture while reducing its costs by creating a larger specific surface area of the chemical solution at the interface of the separated phases. The goal is achieved by the fact that in the device, the tank is equipped with a perforated diffuser, marked in its lower part.

Причем эжекционный узел смещения размещен в верхней части емкости. Кроме того, предлагаемое устройство снабжено патрубком отвода отсепарированного газа, расположенным в верхней части емкости и соединенным с трубопроводом подачи водонефтяной смеси. На чертеже изображено предлагаемое устройство.Moreover, the ejection displacement site is located in the upper part of the tank. In addition, the proposed device is equipped with a pipe for separating the separated gas located in the upper part of the tank and connected to the pipeline for the supply of oil-water mixture. The drawing shows the proposed device.

Устройство включает вертикальную цилиндрическую емкость 1, установленную на опорах 2, в верхней части которой имеется трубопровод 3 подачи водонефтяной смеси,внутри которого установлен эжектор 4,связанный с патрубком 5 отвода отсепарированного газа. В трубопроводе подачи соосно установлен коллектор 6 ввода химреагента, образующий эжекционный узел 7 смешения потоков водонефтяной смеси с химреагентом.в верхней части емкости укреплены отбойные тарелки 8, в нижней части емкости установлен диффузор 9, выполненный с отверстиями 10, укрепленный на опорах 11. Для выхода водонефтяной эмульсии предусмотрен патрубок 12. _ i Устройство работает следующим ³ образом.The device includes a vertical cylindrical tank 1 mounted on supports 2, in the upper part of which there is a pipeline 3 for supplying oil-water mixture, inside of which an ejector 4 is connected, connected with a nozzle 5 for separating the separated gas. A chemical input manifold 6 is coaxially mounted in the supply pipeline, forming an ejection unit 7 for mixing water-oil mixture flows with a chemical agent. Fender plates 8 are strengthened in the upper part of the tank, a diffuser 9 is installed in the lower part of the tank, made with holes 10, mounted on supports 11. To exit a water-oil emulsion is provided with a pipe 12. _ i The device operates as follows ³ .

Газоводонефтяная смесь по трубопроводу 3 подачи и раствор химреагента ·. через коллектор 6 поступают в верх- . нюю часть вертикальной емкости 1 и при инверсии за счет резкого расширения в корпусе устройства и объема дополнительно истекаемого газа вся газонефтяная смесь дробится на мелкие капли в виде аэрозоля. Для улуч- 15 шения эффекта дробления (увеличения скорости на выходе из сопла) в установке предусмотрен отсос выделившегося в емкости 1 газа через патрубок 5, связанный с эжектором 4. Для 20 улавливания капельной жидкости, содержащейся в газе, в емкости установлены ассиметричные отбойные тарелки 8, по которым жидкость стекает в емкость 1. Цилиндрическая емкость 1 име^ ет запас объема , необходимый для равномерного распределения химреагента. Дальнейшее дробление происходит во внутреннем объеме диффузора при истечении смеси через отверстия 10, которые образуют высокоразвитую поверх-* ность контакта. Массообмен (т.е. смешение )при этом тем эффективнее, чем выше объем остаточного газа в нефти. Процессы массообмена происходят при этом на молекулярном уровне при ’5 инверсии Фаз за счет резкого перепада давления и превращения жидкого потока в капельно-газовый. За счет этого обеспечивается равномерность распределения химреагента по объему при отсутствии застойных зон.Gas-oil mixture through the supply pipe 3 and a chemical solution ·. through the collector 6 enter the top. part of the vertical tank 1 and during inversion due to a sharp expansion in the device casing and the volume of additionally expelled gas, the entire gas-oil mixture is crushed into small droplets in the form of an aerosol. To improve the effect of crushing (increase in speed at the exit from the nozzle), the installation provides for the suction of gas released in the tank 1 through the pipe 5 connected to the ejector 4. For 20 capture of the droplet liquid contained in the gas, asymmetric baffle plates are installed in the tank 8 along which the liquid flows into the tank 1. The cylindrical tank 1 has a volume reserve necessary for uniform distribution of the chemical reagent. Further crushing occurs in the internal volume of the diffuser when the mixture flows through holes 10, which form a highly developed contact surface. Mass transfer (i.e. mixing) is all the more effective the higher the volume of residual gas in the oil. In this case, mass transfer processes occur at the molecular level with ’5 phase inversion due to a sharp pressure drop and the transformation of a liquid stream into a gas-gas stream. This ensures uniform distribution of the chemical throughout the volume in the absence of stagnant zones.

Предлагаемое устройство обеспечивает равномерное распределение малых доз химреагентов в эмульсионном потоке и найдет широкое применение в нефтехимической промышленности.The proposed device provides uniform distribution of small doses of chemicals in the emulsion flow and will be widely used in the petrochemical industry.

Claims

The invention relates to devices for mixing the oil coming from the well with the chemical agent and can be used in the petrochemical and petroleum refining industries. It is known a device in which a chemical agent is mixed with oil, made in the form of a nozzle for spraying a liquid 1. The disadvantage of this device is that the mixing of substances takes place over the surface of the streams, and not inside each dispersed part. the technical essence and the achieved result is a device for mixing two components, including a vertical tank, an ejection mixing section for a water-oil emulsion and a chemical agent, made in the form of a pipe The supply of the water-oil mixture, inside which the chemical agent 2 inlet is coaxially mounted. A disadvantage of this device is the uneven distribution and a significant amount of the chemical agent for saturating the water-oil mixture. The purpose of the invention is the uniform distribution of small doses of chemical reagent. in the mixture while reducing its costs by creating a larger specific surface of the chemical solution at the boundary of the separated phases. The goal is achieved by the fact that in the device the container is equipped with a perforated diffuser located in its lower part. And. The displacement ejection assembly is located at the top of the tank. In addition, the proposed device is equipped with a branch pipe for separating separated gas located in the upper part of the tank and connected to the pipeline for supplying the oil-and-oil mixture. The drawing shows the proposed device. The device includes a vertical cylindrical tank 1, mounted on supports 2, in the upper part of which there is a pipeline 3 for supplying a water-oil mixture, inside of which an ejector 4 is installed, connected to the branch pipe 5 of the separated gas discharge. A xYiMpeareHTa inlet manifold 6 is installed coaxially in the supply pipe, which forms the ejection unit 7 for mixing the water-oil mixture with the chemical agent. The baffle plates 8 are fixed in the upper part of the tank, and the diffuser 9 is installed in the lower part of the tank, fixed to the supports 11. To exit the water-oil emulsion, it is provided for cuttings 12. I The device operates as follows. Gas supply to the mixture through the supply pipe 3 and the chemical solution through the collector b enter the upper part of the vertical tank 1 and during inversion due to a sharp expansion of the gas and oil into the device body and the amount of additional gas exhausted, the gas and oil mixture is crushed into small droplets in the form of an aerosol. To improve the crushing effect (increase the speed at the nozzle bypass), the installation provides for suction of gas released in tank 1 through pipe 5 connected to ejector 4. In order to catch dropping liquid contained in gas, asymmetrical baffle plates 8 are installed in the tank the liquid flows into the capacitor 1 tank. The cylindrical tank 1 has the volume reserve necessary to evenly distribute the chemical. Further fragmentation takes place in the internal volume of the diffuser when the mixture flows through the holes 10, which form a highly developed contact surface. Mass transfer (ie, mixing) is the more effective the higher the amount of residual gas in the oil. Mass transfer processes occur at the molecular level during phase inversion due to a sharp pressure drop and the conversion of a liquid stream into a droplet-gas flow. This ensures that the chemical reagent is distributed evenly in the absence of stagnant zones. The proposed device ensures uniform distribution of small chemical doses in the emulsion flow and will find wide application in the petrochemical industry. Claim 1. A device for mixing a water-oil emulsion with a chemical reagent, including a vertical tank, an ejection unit for displacing the flow of a water-oil emulsion and a chemical reagent, made in the form of a pipeline for supplying a water-oil mixture; that, with a goal; e evenly distributing .. small doses of the chemical agent in the mixture while reducing its costs by creating a larger specific surface of the chemical agent solution at the interface; phases container provided with a perforated cone, placed in the bottom thereof. 2. A device according to claim 1, characterized in that the ejection mixing unit is located in the upper part - the tank. 3. The device according to Clause 1, which is provided with the fact that it is equipped with a branch pipe for separating the separated gas located in the upper part of the tank and connected to the pipeline of the water-oil mixture. Sources of information taken into account during the examination, 1. USSR author's certificate No. 201332, cl. B 05 B 1/12, 1965.

2. USSR author's certificate №578977, c. В 01 D17 / 00,1975 (prototype).