RU94025089A - Sampler of fluids from pipe-line - Google Patents

Sampler of fluids from pipe-line

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Publication number
RU94025089A
RU94025089A RU94025089/06A RU94025089A RU94025089A RU 94025089 A RU94025089 A RU 94025089A RU 94025089/06 A RU94025089/06 A RU 94025089/06A RU 94025089 A RU94025089 A RU 94025089A RU 94025089 A RU94025089 A RU 94025089A
Authority
RU
Russia
Prior art keywords
sampling
line
stream
flow
transfer line
Prior art date
Application number
RU94025089/06A
Other languages
Russian (ru)
Inventor
Р.Р. Вальшин
С.Ю. Бахир
А.А. Дворяшин
Original Assignee
Р.Р. Вальшин
С.Ю. Бахир
А.А. Дворяшин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Р.Р. Вальшин, С.Ю. Бахир, А.А. Дворяшин filed Critical Р.Р. Вальшин
Priority to RU94025089/06A priority Critical patent/RU94025089A/en
Publication of RU94025089A publication Critical patent/RU94025089A/en

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  • Sampling And Sample Adjustment (AREA)

Abstract

FIELD: oil and oil refining industries. SUBSTANCE: sampler of fluids from pipe-line has device taking samples which sampling element is placed vertically in diameter of pipe-line with inlet set in opposition to stream, overflow line joined in series with device to pump part of stream of main pipe-line through which is taken by device taking samples under action of excessive pressure with its return over overflow line into main pipe-line, device monitoring parameters of fluid installed in overflow line, one or two identical sampling tubes with bevel (or bent through 90 deg) section for manual or automatic sampling from stream in overflow line without interruption of stream installed in overflow line which are placed with inlet hole along axis of overflow line in opposition to stream, cock for manual sampling, valve in overflow line, diaphragm or pump to form excessive pressure in overflow line. Diaphragm is positioned between sampling element of main pipe-line and point of cutting-in of overflow line into main pipe-line. Pump is connected in series to overflow line, disperser in the form of Venturi tube is set tubes of overflow line along movement of stream. Supercavitating bushing with grooves in cylindrical surface from inside in mounted in contraction of tube. End face surface of internal side is made stepped along movement of stream, it has two diametrically opposite recessions and protrusions of rectangular shape of same width convex in direction radial to central axis. For the case of stratification of stream in main pipe-line sampling hole of sampling element is made in compliance with condition of same proportional sampling of fluid with reference to its flow rate at sampling levels. If in stream of main pipe-line there present regions with uniform distribution of ballast in cross-section of stream profile of sampling hole of device taking samples in main pipe-line is manufactured on condition of equally proportional sampling of fluid from these regions with reference to flow rate of stream in it with preservation of volume of sampled fluid in each such region. If internal surface of main pipe-line is used as coalescence screen for dispersive inclusions of stream sampling hole of device taking samples of main pipe-line is manufactured on conduction of equally proportional sampling of fluid with reference to its flow rate at each level of sampling as well as from stratum of stream close to wall minimal in thickness where preparticles of ballast clung to wall of pipe-line are moved with stream. Implementation of proposed sampler of fluids from pipe-line in oil industry realizing methods of sample taking based on actual distribution of ballast in cross-section of stream in pipe-line makes it possible to carry out more accurate quantitative and qualitative metering of prepared oil. EFFECT: increased representativity of taken sample and reliability of sampler.

Claims (1)

Использование: в нефтедобывающей, нефтеперерабатывающей и других областях промышленности, где требуется высокая точность определения примесей. Цель изобретения - повышение представительности отбираемых проб и надежности устройства. Для этого в устройстве для отбора проб жидкости из трубопровода, включающем пробозаборник, пробозаборный элемент которого размещен вертикально по диаметру трубопровода входным отверстием навстречу потоку, последовательно соединенную с пробозаборником переточную линию для прокачки через нее части потока основного трубопровода, отбираемую через пробозаборник под действием избыточного давления с возвращением ее по переточной линии в основной трубопровод, устройства контроля параметров жидкости, установленные на переточной линии, а также установленные на переточной линии одну или две одинаковые пробозаборные трубки с косым (или загнутым на 90°) срезом для ручного или автоматического отбора пробы из потока переточной линии без прекращения движения потока переточной линии, которые размещаются входным отверстием по оси переточной линии навстречу потоку, кран для ручного отбора, а также клапаны на переточной линии, диафрагму или насос для создания избыточного давления в переточной линии (диафрагма располагается между пробозаборным элементом основного трубопровода и точкой врезки переточной линии в трубопровод, а насос последовательно подключается к переточной линии), согласно изобретению непосредственно перед пробозаборными трубками переточной линии по ходу движения потока переточной линии установлен диспергатор в виде трубки Вентури, в сужении которого установлена сменная суперкавитирующая втулка с канавками на цилиндрической поверхности с внутренней стороны, торцовая поверхность которой по ходу движения потока выполнена ступенчатой, имеет по два диаметрально противоположных углубления и выступа прямоугольной формы одинаковой ширины и выпуклыми в радиальном от центральной оси направлении. В случае расслоения потока основного трубопровода пробозаборное отверстие пробозаборного элемента (дискретного или непрерывного) выполняется из условия одинаково пропорционального отбора жидкости по отношению к ее расходу на уровнях отбора. При этом при наличии в потоке основного трубопровода областей с равномерным распределением балласта в поперечном сечении потока профиль пробозаборного отверстия пробозаборника основного трубопровода выполняется из условия одинаково пропорционального отбора жидкости из этих областей по отношению к расходу в них потока трубопровода с сохранением объема отбираемой жидкости в каждой такой области. В случае, когда внутренняя поверхность основного трубопровода служит коалесцирующим экраном дисперсных включений потока, пробозаборное отверстие пробозаборника основного трубопровода выполняется из условия одинаково пропорционального отбора жидкости по отношению к ее расходу как на каждом уровне отбора, так и с пристенного слоя потока, минимального по толщине, в котором перемещаются с потоком налипающие на стенку трубопровода частички балласта. Внедрение, например, в нефтяной промышленности предлагаемого устройства отбора проб жидкости из трубопровода, реализующего методику отбора проб, основанную на реальном распределении балласта в поперечном сечении потока трубопровода, позволит осуществлять большой точности количественный и качественный учет подготавливаемой нефти.Usage: in the oil, refining and other industries where high accuracy is required for the determination of impurities. The purpose of the invention is to increase the representativeness of the samples and the reliability of the device. To do this, in a device for sampling liquid from a pipeline, including a sampling probe, the sampling element of which is placed vertically along the diameter of the pipe with an inlet facing the flow, a transfer line connected in series with the probe inlet for pumping through it a portion of the flow of the main pipeline, taken through the probe at the pressure returning it via the transfer line to the main pipeline, liquid parameter monitoring devices installed on the transfer line, and t Also, one or two identical sampling tubes installed on the transfer line with an oblique (or 90 ° bent) cut for manual or automatic sampling from the transfer line flow without stopping the transfer line flow, which are placed by the inlet opening along the transfer line axis towards the flow, tap for manual selection, as well as valves on the transfer line, a diaphragm or a pump to create excess pressure in the transfer line (the diaphragm is located between the sampling element of the main pipeline and by inserting the transfer line into the pipeline, and the pump is connected in series to the transfer line), according to the invention, a disperser in the form of a Venturi tube is installed directly in front of the intake pipes of the transfer line in the direction of the transfer line flow; the inner side, the end surface of which is made stepwise in the direction of flow, has two diametrically opposite recesses and you blunt rectangular shape of the same width and convex in a radial direction from the central axis. In the case of stratification of the flow of the main pipeline, the sampling hole of the sampling element (discrete or continuous) is performed from the condition of equally proportional fluid withdrawal with respect to its flow rate at the sampling levels. In this case, if there are areas in the main pipeline flow with a uniform distribution of ballast in the cross section of the flow, the profile of the sampling inlet of the main pipeline inlet is fulfilled from the condition of equally proportional fluid withdrawal from these areas with respect to the flow rate of the pipeline flow in them, while maintaining the volume of fluid taken in each such region . In the case where the inner surface of the main pipeline serves as a coalescing screen of dispersed inclusions of the flow, the sampling hole of the sampling inlet of the main pipeline is fulfilled from the condition of equally proportional fluid withdrawal with respect to its flow rate both at each sampling level and from the near-wall flow layer, which is minimal in thickness, in which are moving with a stream of ballast particles adhering to the pipe wall. The introduction, for example, in the oil industry of the proposed device for sampling liquid from a pipeline that implements a sampling technique based on the actual distribution of ballast in the cross section of the pipeline flow, will allow for high precision quantitative and qualitative accounting of the oil being prepared.
RU94025089/06A 1994-07-04 1994-07-04 Sampler of fluids from pipe-line RU94025089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94025089/06A RU94025089A (en) 1994-07-04 1994-07-04 Sampler of fluids from pipe-line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94025089/06A RU94025089A (en) 1994-07-04 1994-07-04 Sampler of fluids from pipe-line

Publications (1)

Publication Number Publication Date
RU94025089A true RU94025089A (en) 1996-05-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94025089/06A RU94025089A (en) 1994-07-04 1994-07-04 Sampler of fluids from pipe-line

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2485472C1 (en) * 2012-04-12 2013-06-20 Общество с ограниченной ответственностью "ГЕОТЕК-ГРУПП" Sampler
CN103528855A (en) * 2012-07-03 2014-01-22 刘勇 High-low pressure airtight feeding sampler
RU186323U1 (en) * 2018-05-04 2019-01-16 Акционерное общество "Научно-исследовательский институт полимерных материалов" Device for the selection of control doses of fluid
RU2684601C1 (en) * 2017-12-26 2019-04-10 Акционерное общество "КБ "Проминжиниринг" Sample collector for the representative selection of a gas-aerosol environment from a waste pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2485472C1 (en) * 2012-04-12 2013-06-20 Общество с ограниченной ответственностью "ГЕОТЕК-ГРУПП" Sampler
CN103528855A (en) * 2012-07-03 2014-01-22 刘勇 High-low pressure airtight feeding sampler
CN103528855B (en) * 2012-07-03 2017-06-30 刘勇 High-low pressure enclosed sampling gives sample device
RU2684601C1 (en) * 2017-12-26 2019-04-10 Акционерное общество "КБ "Проминжиниринг" Sample collector for the representative selection of a gas-aerosol environment from a waste pipe
WO2019132725A1 (en) * 2017-12-26 2019-07-04 Акционерное общество "КБ "Проминжиниринг" Sample collector for the representative sampling of a gaseous aerosol medium from an exhaust flue
RU186323U1 (en) * 2018-05-04 2019-01-16 Акционерное общество "Научно-исследовательский институт полимерных материалов" Device for the selection of control doses of fluid

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