WO2002012852A1 - Procede de mise en oeuvre d'un microflux de gaz et dispositif correspondant - Google Patents

Procede de mise en oeuvre d'un microflux de gaz et dispositif correspondant Download PDF

Info

Publication number
WO2002012852A1
WO2002012852A1 PCT/RU2001/000280 RU0100280W WO0212852A1 WO 2002012852 A1 WO2002012852 A1 WO 2002012852A1 RU 0100280 W RU0100280 W RU 0100280W WO 0212852 A1 WO0212852 A1 WO 0212852A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
liquid
measurement
zhidκοsτi
flow
Prior art date
Application number
PCT/RU2001/000280
Other languages
English (en)
Russian (ru)
Inventor
Alexander Vladimirovich Nikipelov
Anatoly Vladimirovich Romashko
Original Assignee
Federal State Unitary Enterprise 'the Academician M. Ph. Reshetnev's Nauchno-Proizvodstvennoe Obiedinenie Prikladnoi Mechaniki'
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 Federal State Unitary Enterprise 'the Academician M. Ph. Reshetnev's Nauchno-Proizvodstvennoe Obiedinenie Prikladnoi Mechaniki' filed Critical Federal State Unitary Enterprise 'the Academician M. Ph. Reshetnev's Nauchno-Proizvodstvennoe Obiedinenie Prikladnoi Mechaniki'
Publication of WO2002012852A1 publication Critical patent/WO2002012852A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3254—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers using a flow detector

Definitions

  • the scope of the invention is the measurement of gas volumes.
  • the flow-measuring methods of measuring the gas flow ( ⁇ 92-1527-89) have a significant error of up to 60%.
  • the sensitivity of gas measurement methods is determined by the use of pressure measuring devices (pressure measurements).
  • the method is used for the sale of valves for valve types, products, sealing, etc.
  • the intended use of the product does not have an indirect contact with liquid.
  • the method is to allow the flow of gas from the product to be sold into the liquid and the separation of the volume of gas to be separated from the waste gas.
  • the leakage rate of the contact gas through a single leak when the visual calculation of the samples and the measurement of the diameter does not cause distress.
  • the maximum sensitivity of the method under the productive conditions is 1, 3 * 10 "7 ⁇ (1, 0 * 10 " 3 l ⁇ m ⁇ .st./s).
  • the waste method is low accuracy. ⁇ n ⁇ si ⁇ elnaya ⁇ g ⁇ eshn ⁇ s ⁇ izme ⁇ eniya diame ⁇ a ⁇ uzy ⁇ a in ⁇ izv ⁇ ds ⁇ venny ⁇ usl ⁇ viya ⁇ s ⁇ s ⁇ avlyae ⁇ 5 - 10%, uchi ⁇ yvaya, ch ⁇ ⁇ i ⁇ asche ⁇ e u ⁇ ech ⁇ i values (see ⁇ S ⁇ 92-4291-75).
  • the purpose of the present invention (for use) is to increase the sensitivity and accuracy of the measurement of the gas flow.
  • the expected sensitivity of the method is up to 1 * 10 "on August 11th .
  • the margin of error is no more than 3 - 5%.
  • mass spectrometers A prerequisite for the use of mass spectrometers is the presence of a variable gas concentration in the measurable gas medium ( ⁇ e), which is not always the case.
  • masse-systems have a high cost, a relatively low reliability, and for their operation a specially trained specialist is required.
  • Devices for the implementation of the methods used in the CIS 92-4291-75, as noted above, have a low sensitivity and accuracy.
  • the range of gas flow rates, measured with the necessary devices, as a rule, is limited, at the lower limit - is sensitive to temperature.
  • the sensitivity of the measurement of oil-shaped pressure gauges affects the inertia and friction of the wall of the floating pressure gauge. Slight differences in the size and weight of the essential substantial deteriorate the accuracy of the measurements.
  • Liquid spills are obtained after filling in the working capacity, and when the ventilator is in the process of refueling it, it must be removed from the product.
  • E ⁇ a purpose d ⁇ s ⁇ igae ⁇ sya ⁇ em, ch ⁇ for izme ⁇ eniya mi ⁇ v gas is ⁇ lzu- e ⁇ sya us ⁇ ys ⁇ v ⁇ , s ⁇ de ⁇ zhaschee ⁇ ab ⁇ chuyu em ⁇ s ⁇ with magis ⁇ alyami ⁇ dv ⁇ da zhid ⁇ s ⁇ i and s ⁇ bscheniya with a ⁇ m ⁇ s ⁇ e ⁇ y with v ⁇ zm ⁇ zhn ⁇ s ⁇ yu i ⁇ ⁇ e ⁇ e ⁇ y ⁇ iya, ⁇ a ⁇ least with ⁇ dnim ⁇ e ⁇ e ⁇ yvaemym ⁇ n ⁇ lnym ⁇ ve ⁇ s ⁇ iem in smenn ⁇ y ⁇ ile ⁇ e, us ⁇ an ⁇ vlenn ⁇ y bottom chas ⁇ i, ⁇ tlichayuscheesya the fact that on the trunk of the messages from the atmosphere an adapter has been installed for transferring a
  • the process of measuring the gas flow is divided into the following stages: cooking, vacuuming, the direct flow of the flow and the indirect gas measurement.
  • a removable file 2 is installed, while a new one is completed, a new one is installed.
  • the personal and thermal characteristics of the errors * in the file are determined by the order of magnitude of the measured gas flow.
  • all the vents and the plug are 5 charges.
  • the pumping process is completed by ventilating the ventilator 3 and draining it through a filter part of the commercial liquid. After the outflow of a certain amount of liquid, at the exit from the working space, the balance is established:
  • condition (4) If condition (4) is fulfilled, while there is a leak to the volume ⁇ of the working capacity, the flow will occur, and therefore, it is agreed that the loss of energy should result in
  • the rate of increase in static pressure is equal to the rate of decrease in hydraulic pressure.
  • the size of the liquid is distributed through the mass of the entire liquid and the amount of droplet droplet in the tank. Before the expiration - ⁇ is shared by the time between the expiration of the droplets.
  • P ⁇ i ⁇ n ⁇ si ⁇ eln ⁇ b ⁇ lshi ⁇ velichina ⁇ ⁇ e ⁇ i ⁇ da is ⁇ echeniya ⁇ a ⁇ li - ⁇ , for ⁇ vysheniya ⁇ chn ⁇ s ⁇ i me ⁇ da, sledue ⁇ uchi ⁇ yva ⁇ ⁇ tsessy is ⁇ a ⁇ eniya for cheg ⁇ in ⁇ mulu (11) vv ⁇ di ⁇ sya ⁇ av ⁇ a ⁇ - ⁇ , ⁇ edelyaemaya ⁇ asche ⁇ nym, lib ⁇ ⁇ y ⁇ nym ⁇ u- ⁇ em for ⁇ azhd ⁇ g ⁇ case (see vy ⁇ azhenie (1. )).
  • the mains supply is free of charge - (1) by means of a system that is separate from the power supply and the power supply In the case of the absence of a flow for a considerable time, the actual flow can be considered null.
  • ⁇ e ⁇ s ⁇ eds ⁇ venn ⁇ e izme ⁇ enie mi ⁇ a gas nachinae ⁇ sya with ⁇ ds ⁇ edineniya che ⁇ ez ⁇ e ⁇ e ⁇ dni ⁇ 8 is ⁇ chni ⁇ a ⁇ n ⁇ li ⁇ uem ⁇ g ⁇ mi ⁇ a gas 9 and ⁇ y ⁇ iya ven ⁇ ilya 7 sh ⁇ utse ⁇ e 6.
  • ⁇ i ⁇ vyzyvae ⁇ gas pressure in ⁇ vyshenie ⁇ l ⁇ s- ⁇ i ⁇ and sled ⁇ va ⁇ eln ⁇ , is ⁇ echenie zhid ⁇ s ⁇ i of ⁇ n ⁇ ln ⁇ y em ⁇ s ⁇ i.
  • P ⁇ s ⁇ avneniyu with P ⁇ i ⁇ m in zayavlyaem ⁇ m us ⁇ ys ⁇ ve on account us ⁇ an ⁇ v ⁇ i ⁇ e ⁇ e ⁇ dni ⁇ a for ⁇ dv ⁇ da izme ⁇ yaem ⁇ g ⁇ mi ⁇ zha gas to magis ⁇ al s ⁇ bsche- Nia with a ⁇ m ⁇ s ⁇ e ⁇ y, ⁇ bes ⁇ echena v ⁇ zm ⁇ zhn ⁇ s ⁇ is ⁇ lz ⁇ vaniya eg ⁇ in ⁇ aches ⁇ ve chuvs ⁇ - vi ⁇ eln ⁇ g ⁇ elemen ⁇ a for izme ⁇ eniya mi ⁇ v gas.
  • the accuracy of the determination of the gas flow rate with the claimed device depends on the accuracy of the measurement of the parameter (1). Accepted for a larger example, that: the mass of droplets is measured with an accuracy of no worse than 0.001 grams; before the expiration of the drop - up to 0.01 seconds; the height of the liquid is up to 0.1 mm, even with constant external conditions (temperature, humidity);
  • the expansion of the range of measurements by the claimed device compared with the existing samples may be due to changes in the mass of the drop, the duration of the changes and the speed of the change
  • the best implementation of the claimed method and device is the measurement of gas flow through a closed shut-off valve of a reactive engine. Measurement is made to support the fuel budget of the vehicle, which, by itself, is conveniently mounted on the engine. ⁇ In the course of the tests, the actual gas flow through the engine is switched off to a vacuum, which is especially relevant for large amounts of gas.
  • Fluid flow from the working tank 1 is also protected.
  • the initial height of the liquid in the working tank is cleared.
  • the throttle inlet of the reactive engine is supplied with gas from an external source of excess pressure, which results in a closed, pressurized pressure switch.
  • the valve 7 is turned off, and the gas flow, which is lost through the saddle, is closed and the engine is shut off, it is consumed, the pressure is consumed After 5-10 minutes after the start of the leak, with separated intervals (10 - 20 minutes), the current flow rate of the fluid is lost, after the flow and the mass of the droplet.
  • the value of the velocity in the area with the calculated pressure is calculated.
  • P ⁇ i is ⁇ y ⁇ aniya ⁇ ⁇ y ⁇ n ⁇ g ⁇ ⁇ b ⁇ aztsa izme ⁇ i ⁇ elya mi ⁇ a (I ⁇ P) ⁇ ve- embedy ⁇ in ⁇ P ⁇ P ⁇ , ⁇ izv ⁇ dil ⁇ s s ⁇ avnenie ⁇ ezul ⁇ a ⁇ v izme ⁇ eniya ⁇ v of ⁇ n ⁇ lny ⁇ ⁇ a ⁇ illya ⁇ ny ⁇ ⁇ echey (100% helium, ⁇ i in va ⁇ uum s ⁇ ve ⁇ s ⁇ venn ⁇ 1, 7 * 10 -3 and 2 * 10 ⁇ 4 L m ⁇ m rt.st./s), obtained by the claimed method, with the results of the measurement of these leaks, obtained by the service of the use of mass media The negative cost of the results did not exceed 20%. Considering the significant errors of the mass spectrometric methods, the test results are evaluated positively.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention relève des domaines de la technique qui sont liées à la mesure exacte de microflux de gaz, par exemple, pour déterminer la non-étanchéité globale de récipients chargés de gaz à pression excessive, calibrer les fuites de contrôle, mesurer la consommation de micromoteurs, etc. Le fonctionnement de l'objet de l'invention est fondé sur le refoulement par le microflux de gaz à mesurer d'un liquide de contrôle préalablement privé de poids, et ce à travers au moins un orifice ayant un diamètre déterminé et fait dans la partie de fond du récipient de travail; on fragmente ensuite le liquide en formant des gouttes à masse égale, on détermine la masse et le temps d'écoulement de la goutte et l'on calcule la valeur du gaz qui s'écoule selon la formule de l'invention. L'invention permet d'augmenter l'exactitude de mesure des microflux de gaz, la sensibilité du dispositif et sa fiabilité ainsi qu'élargir la gamme des mesures.
PCT/RU2001/000280 2000-08-04 2001-07-10 Procede de mise en oeuvre d'un microflux de gaz et dispositif correspondant WO2002012852A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2000121004A RU2194262C2 (ru) 2000-08-04 2000-08-04 Способ и устройство измерения микропотока газа
RU2000121004 2000-08-04

Publications (1)

Publication Number Publication Date
WO2002012852A1 true WO2002012852A1 (fr) 2002-02-14

Family

ID=20238906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2001/000280 WO2002012852A1 (fr) 2000-08-04 2001-07-10 Procede de mise en oeuvre d'un microflux de gaz et dispositif correspondant

Country Status (2)

Country Link
RU (1) RU2194262C2 (fr)
WO (1) WO2002012852A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604574A (zh) * 2013-12-02 2014-02-26 滁州汽车与家电技术及装备研究院 一种基于同步测量数据融合的浮空器气囊泄漏检测系统和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103537A (en) * 1976-09-07 1978-08-01 Rice Hydro Equipment Manufacturing Means and method of hydrostatic testing
SU821987A1 (ru) * 1979-06-01 1981-04-15 Karsavin Lev V Расходомер дл определени утечекиз издЕли
SU1095045A1 (ru) * 1982-08-25 1984-05-30 Предприятие П/Я А-7179 Способ испытаний изделий на герметичность
DE3725052A1 (de) * 1987-07-29 1989-02-09 Bayerische Motoren Werke Ag Verfahren und vorrichtung zur ermittlung der leckluftmenge von einspritzventilen
SU1597649A1 (ru) * 1988-08-19 1990-10-07 Предприятие П/Я А-7179 Способ испытани изделий на герметичность
US5086644A (en) * 1990-11-01 1992-02-11 Environmental Protection Technology, Inc. Ultra sensitive leak detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103537A (en) * 1976-09-07 1978-08-01 Rice Hydro Equipment Manufacturing Means and method of hydrostatic testing
SU821987A1 (ru) * 1979-06-01 1981-04-15 Karsavin Lev V Расходомер дл определени утечекиз издЕли
SU1095045A1 (ru) * 1982-08-25 1984-05-30 Предприятие П/Я А-7179 Способ испытаний изделий на герметичность
DE3725052A1 (de) * 1987-07-29 1989-02-09 Bayerische Motoren Werke Ag Verfahren und vorrichtung zur ermittlung der leckluftmenge von einspritzventilen
SU1597649A1 (ru) * 1988-08-19 1990-10-07 Предприятие П/Я А-7179 Способ испытани изделий на герметичность
US5086644A (en) * 1990-11-01 1992-02-11 Environmental Protection Technology, Inc. Ultra sensitive leak detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604574A (zh) * 2013-12-02 2014-02-26 滁州汽车与家电技术及装备研究院 一种基于同步测量数据融合的浮空器气囊泄漏检测系统和方法

Also Published As

Publication number Publication date
RU2194262C2 (ru) 2002-12-10

Similar Documents

Publication Publication Date Title
EP2198289B1 (fr) Procédé et dispositif pour mesurer la quantité d'un gaz dans un contenant de liquide scellé de façon étanche
US5442948A (en) Apparatus and method for determining amount of gases dissolved in liquids
US20140298893A1 (en) Method for testing the integrity of a hydrophobic porous diaphragm filter
JP2007525638A (ja) 圧力を使用する容器内の流体体積の測定
CN112557199B (zh) 适用于高温高压条件的岩石气体突破压力测定装置
US8220314B2 (en) Lighter device with flow restrictor and methods of manufacturing and testing same
US9250110B2 (en) Volume measurement of a liquid, method and device
WO2002012852A1 (fr) Procede de mise en oeuvre d'un microflux de gaz et dispositif correspondant
US5170634A (en) Acoustic vapor type indicator
US2050800A (en) Meter testing
RU118621U1 (ru) Лабораторная установка для определения массы потерь нефтепродукта от испарения при заполнении вертикальных резервуаров
JPH0510845A (ja) 移動貯蔵タンクの漏洩検査装置
GB842975A (en) Method of and apparatus for flooding sample cores taken from oil-bearing rock strata
US2242288A (en) Lubricating apparatus
US1548186A (en) Device for the withdrawal of liquids under gaseous pressure
EP1898186B1 (fr) Procédé et dispositif pour détecter la teneur en bulles de gaz dans un courant liquide
RU2243536C1 (ru) Способ определения газосодержания в жидкости
GB2246434A (en) Ullage volume sensor
JP2010255530A (ja) 液体流量計測装置
RU2333479C1 (ru) Устройство для проверки работоспособности газовых сигнализаторов
US2911820A (en) Method of and apparatus for testing liquefied gas meters
CN107036771A (zh) 漏气测试方法和设备
EP0118964A1 (fr) Appareil pour mesurer la concentration de gaz dans un liquide contenant du gaz
AU650123B2 (en) Air/vapour separation device
JP3342572B2 (ja) フルイディック式ガスメータ

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DE GB JP RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WPC Withdrawal of priority claims after completion of the technical preparations for international publication
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP