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GB2089049A - Gaseous-liquid dual-phase fluid flow measurement - Google Patents

Gaseous-liquid dual-phase fluid flow measurement Download PDF

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Publication number
GB2089049A
GB2089049A GB8126808A GB8126808A GB2089049A GB 2089049 A GB2089049 A GB 2089049A GB 8126808 A GB8126808 A GB 8126808A GB 8126808 A GB8126808 A GB 8126808A GB 2089049 A GB2089049 A GB 2089049A
Authority
GB
United Kingdom
Prior art keywords
liquid
measuring
gaseous
flow
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB8126808A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orion Machinery Co Ltd
Original Assignee
Orion Machinery Co Ltd
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 Orion Machinery Co Ltd filed Critical Orion Machinery Co Ltd
Publication of GB2089049A publication Critical patent/GB2089049A/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01JMANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00Milking machines or devices
    • A01J5/007Monitoring milking processes; Control or regulation of milking machines
    • A01J5/01Milkmeters; Milk flow sensing devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/52Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/08Air or gas separators in combination with liquid meters; Liquid separators in combination with gas-meters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Apparatus for measuring the flow of the gaseous and liquid phases of a dual-phase mixed fluid comprises a separation chamber 2 arranged above a liquid flow measuring chamber 3. This comprises a measuring cylinder 10 having slit-like openings 11 and a float 12 which indicates via switches 14 the liquid level and hence the flow rate. The separated fluids are re-mixed before discharge from outlet 15. The gaseous flow rate is measured with meter 17. <IMAGE>

Description

SPECIFICATION Gaseous-liquid dual-phase fluid flow measurement The present invention relates to a method of measuring quantity of flow of gaseous-liquid dualphase mixed fluid and a device to be used for such measurement, and more particularly relates io a method in which the mixed fluid is separated into gaseous-phase fluid and liquid-phase fluid so that quantity of each fluid is measured.
Various conventional methods of measuring one or each constituent of compound fluid in which gaseous-phase fluid and liquid-phase fluid are mixed, can be roughly grouped into two methods, namely a method of measuring each fluid by separating the two constituents and a method of measuring each quantity of flow from the mixed or compound fluid as it is. In the latter method measuring devices are often complicated, requiring precision manufacture of their various components and thus these devices were relatively expensive. In other cases there were problems that measuring errors were too large and it was difficult to put the devices into actual use. The present invention belongs to the first method of separating the fluid and then measuring each constituent so as to avoid disadvantages of the other method of measuring the compound fluid as mentioned above.
Among the conventional methods of measuring quantity of flow by first separating the gaseousliquid dual-phase fluid, the one which utilises a seesaw with a suacer on each side of a fulcrum, is known. In this method a certain quantity of each of the two kinds of liquid separated in the gas-liquid separation chamber, is gathered alternately in the saucers of the seesaw. Then the seesaw is reversed and swung, and quantity of flow of the two kinds or liquid is measured by multiplying the number of times the seesaw is reversed. In this method, however, there was a disadvantage that if the measuring device as a whole is not maintained level, the seesaw would be off-balance, causing measuring errors. This method, thus, was not suitable for a portable device.Moreover, as the shock exerted on the seesaw varied according to the flow quantity dropped on it, errors were again liable to be caused.
It is an object of the present invention to provide a method of separating and measuring gaseous-liquid dual-phase fluid and a device therefor which is economical and easy to transport with few errors caused by tilting of the device, having fewer movable parts, and overcoming the problems of the conventional method of separating and measuring gaseous-liquid dual-phase fluid employing a seesaw mentioned above.
The invention will now be'described, by way of example, with preference to the accompanying drawings in which: Figure 1 is a longitudinal cross-section ofthe measuring device in accordance with the present invention; Figure 2 is a perspective view thereof with a part of its principal elements broken away; Figure 3 is a diagram showing measuring of quantity of flow; and Figure 4 is also a diagram showing measuring of quantity of flow.
A measuring device body 1 is formed with a gasliquid separation chamber 2 in its upper part and a liquid quantity measuring chamber 3 thereunder. An inlet port 4 for gaseous-liquid compound fluid is provided in the gas-liquid separation chamber 2, and separated gas flows out to a gas passage 5 from the upper part of the chamber 2 while separated liquid flows down by its own weight from a liquid outlet pipe 6 to the liquid quantity measuring chamber 3. A floating valve 7 is provided in the separation chamber 2 to open and close the liquid outlet pipe 6.
The valve 7 prevents flowing down of the gas-phase portion and permits the liquid-phase portion to flow down when the valve is raised.
At the centre of the liquid measuring chamber 3 is an overflow cylinder 8 whose upper end is open and whose lower end coincides with the lower wall of the body. The lower end of the liquid outlet pipe 6 which depends from the liquid separation chamber 2 opens into the overflow cylinder 8 so that down-flow of the liquid is gradually decelerated and the liquid flows to the outer periphery of the overflow cylinder 8 from its upper end as well as from an opening 9 formed at its bottom. As the down-flow of the liquid is moderate and slow, and the liquid flows through the overfloe cylinder 8, even the gas which has flowed down still being mixed in the liquid due to insufficient separation, can be separated in the cylinder, and thus precision of measuring the liquid flow is not affected.
Around the outer periphery of the overflowcylin- der8 a measuring cylinder 10 whose upper end is open, is provided concentric with the cylinder 8 at a certain distance from the cylinder 8. A plurality of longitudinal and thin slit-like notched openings 11 are formed in the measuring cylinder 10. Liquid which goes into the measuring cylinder 10 from the overflow cylinder 8, flows outside of the cylinder 10 restrictedly th rough these openings 11 and then flows further out from an outlet formed in the bottom of a side wail of the main body 1. Thus, by suitably selecting the width B and the shape of the openings 11, the quantity of liquid which flows out of these openings can be considered equal to the flow of quantity Q in the weir which, in turn, can be reckoned as a function of the head H.As, in this case, the head H corresponds to that inside the measuring cylinder 10, the quantity of liquid flowing out of the openings 11 can be measured by detecting the liquid level in the measuring cylinder 10.
In order to measure the liquid level in the measuring cylinder 10, a ring-like float 12 which freely moves up and down in accordance with the liquid level, is provided around the outer periphery of the overflow cylinder 8. A magnet 13 is mounted in the float 12, and a plurality of leading switches 14 are provided at a certain interval in the overflow cylinder 8. The liquid level is detected by operating one of the leading switches 14 which corresponds to the position of the float 12.
By providing the openings 11 in the measuring cylinder 10 in many directions symmetrical of the centre, the liquid level in the cylinder can be main tained uniform regardless of tilting of the device, and chances of causing errors in measuring the quantity of flow can be reduced. Further, as both the inside and outside the measuring cylinder 10 are opened at the top so that atmospheric pressure is maintained the same, upsetting of correlation between the liquid level and the quantity of flow in the measuring cylin der 10 due to the difference in atmospheric pressure, is avoided. The bottom of the measuring cylinder 10 and the outlet 15 of the main body 1 are communicated by a narrow tunnel 16 so that a small quantity of flow below a certain quantity of flow is measured.
In other words, when the quantity of flow is small and the liquid level does not reach the lower ends of the openings 11, the float 12 hardly moves. By arranging the leading switches not to be operated, the quantity of flow detected at the abovementioned level can be measured as the small quan tityofflowbelowa certain quantity of flow.
Separated gas which flows in a gas passage 5 is measured by a gas flow meter 17 provided in the middle of the passage, and the measured gas comes together with the liquid to be discharged from the outlet 15.
For the gas flow meter 17, volume-type or pressure-difference-type measuring devices may be used. In case it is not necessary to measure the quantity of gas, provision ofthe gas flow meter 17 may be omitted.
The signal of the liquid level in the measuring cylinder 10 detected by the leading switch 14 and that of the measured valve detected by the gas flow meter 17 are respectively supplied to a suitable circuit 18, and the quantity of flow ofthe liquid and the gas are shown on a suitable indicator 19.
Thus, in the present invention gaseous-liquid compound fluid is separated into gas-phase fluid and liquid-phase fluid. The liquid-phase fluid is led onto a measuring cylinder with slit-like openings so that its quantity of flow is measured by detecting the liquid level in the cylinder, while the gaseous-phase fluid is measured by a gas flow meter. The two kinds of fluid are mixed and discharged after being measured. In this manner continuous measurements is possible and the device can be made more economical. Furthermore, as there are few movable parts, it is easy to maintain and manage the device and keep the rate of trouble occurrences low, while decreasing errors due to tilting of the device. Moreover, as it is not necessary to provide a part to receive the fluid, it is easy to transfer the device.

Claims (7)

1. A method of measuring quantity of flow of gaseous-liquid dual-phase fluid comprising separating gaseous-liquid compound fluid flowing through a passage into gaseous-phase and liquid-phase; leading the liquid-phase into a measuring cylinder in which the quantity of flow through openings and the liquid level are mutually related, measuring the quantity of flow of the liquid by detecting the liquid level; and finally rembing the liquid-phase fluid and the gaseous-phase fluid for discharge to the passage.
2. A method as claimed in Claim 1 in which the quantity of flow of the gaseous-phase fluid is measured before the gaseous-phase fluid and the liquidphase fluid are re-mixed.
3. Adevice for measuring quantity of flow of gaseous-liquid compound fluid comprising a gasliquid separation chamber formed at the top of a liquid quantity measuring chamber in which is disposed a measuring cylinder with openings which maintains a mutual relationship between the quantity of outward flow through said openings and the liquid level; the gas-liquid separation chamber 2 communicating with the measuring cylinder 10 to permit the liquid-phase fluid to be supplied into the said measuring cylinder 10, a liquid level detecting means being provided in the measuring cylinder 10; and means permitting the re-mixing of the liquidphase fluid and the gaseous-phase fluid after measurement has taken place.
4. A measuring device as claimed in Claim 3 in which a gas flow meter is provided in a gas passage of which one end is communicated to the gas-liquid separation chamber and of which the other end is communicated to the liquid quantity measuring chamber 3.
5. A measuring device as claimed in Claim 3 or 4 in which the openings are slit-like and formed in several directions symmetrically of a centre.
6. A method of measuring quantity of flow of gaseous-liquid dual-phase fluid substantially as hereinbefore described.
7. A device for measuring quantity of flow of gaseous-liquid compound fluid substantially as hereinbefore described with reference to the accompanying drawings.
GB8126808A 1980-11-19 1981-09-04 Gaseous-liquid dual-phase fluid flow measurement Withdrawn GB2089049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16350180A JPS5786717A (en) 1980-11-19 1980-11-19 Method and instrument for measuring flow rate of fluid in gaseous phase and liquid phase respectively

Publications (1)

Publication Number Publication Date
GB2089049A true GB2089049A (en) 1982-06-16

Family

ID=15775055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8126808A Withdrawn GB2089049A (en) 1980-11-19 1981-09-04 Gaseous-liquid dual-phase fluid flow measurement

Country Status (5)

Country Link
JP (1) JPS5786717A (en)
DE (1) DE3136763A1 (en)
DK (1) DK511781A (en)
FR (1) FR2494433A1 (en)
GB (1) GB2089049A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185190A1 (en) * 1984-11-27 1986-06-25 Packo-Agri N.V. Method for continuously measuring the production of liquid from a liquid-gas mixture and meter for carrying out said method
EP0213838A1 (en) * 1985-08-14 1987-03-11 Ronald Northedge Flow meters
GB2180352A (en) * 1985-09-12 1987-03-25 Texaco Development Corp Petroleum stream monitoring
FR2610105A1 (en) * 1987-01-26 1988-07-29 Elf Aquitaine METHOD AND DIPHASIC SEPARATOR-METER FOR MEASURING, CONTINUOUSLY AND RESPECTIVELY, THE QUANTITIES OF GAS AND LIQUID DELIVERED IN A DYNAMIC FLOW OF A MIXTURE OF GAS AND LIQUID
EP0286259A2 (en) * 1987-04-10 1988-10-12 Texaco Development Corporation Multi-phase petroleum stream monitoring system
FR2617592A1 (en) * 1987-07-02 1989-01-06 Hydrologic Sa Method intended for measuring flow rates of fluids in a pipe
EP0326231A1 (en) * 1985-08-14 1989-08-02 Ronald Northedge Fluid separator
GB2242373A (en) * 1990-03-26 1991-10-02 British Offshore Eng Tech Crude oil separator
EP0667510A1 (en) * 1994-02-14 1995-08-16 The BOC Group plc Fluid flow measurement
WO1995026494A1 (en) * 1994-03-25 1995-10-05 Total S.A. Device and method for mixing, measuring the flow rate of and supplying a multi-phase mixture
FR2772915A1 (en) * 1997-12-22 1999-06-25 Inst Francais Du Petrole METHOD AND DEVICE FOR POLYPHASE FLOWMETRY
FR2772916A1 (en) * 1997-12-22 1999-06-25 Inst Francais Du Petrole Mass flow rate determination method for multiphase effluent
WO2004042329A1 (en) * 2002-11-08 2004-05-21 Acos Limited Liquid flow measuring apparatus
WO2006135301A1 (en) * 2005-06-16 2006-12-21 Delaval Holding Ab Flow measurement apparatus
DE102014113898A1 (en) * 2014-09-25 2016-03-31 Endress+Hauser Flowtec Ag measuring arrangement
CN105909230A (en) * 2016-05-30 2016-08-31 四川科华石油化工设备工程有限公司 Three-phase separation testing device
CN106092246A (en) * 2015-04-30 2016-11-09 斯普瑞斯-萨克有限公司 For determining the apparatus and method of the amount of on-condensible gas

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012419A1 (en) * 1990-04-19 1991-10-24 Voith Gmbh J M Two-phase mixt. vol flow measuring appts. - useful for measuring heat consumption of paper drying cylinder
KR20040034835A (en) * 2002-10-17 2004-04-29 현대자동차주식회사 Apparatus for detecting water level in surge tank of cooling system in automobile
CN102628702B (en) * 2012-04-16 2014-06-11 中国科学院力学研究所 Oil-water phase flow part separating and online measuring device and application method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288725A (en) * 1927-01-14 1928-04-16 Daniel Arthur Quiggin Improvements in apparatus for indicating the rate of flow of a liquid in a mixed flow of liquid and gas; specially applicable to condensed water from steam-heating coils of evaporators for distilling plants, and the like
GB542784A (en) * 1940-08-28 1942-01-27 James Gilbert Corrie Improvements in flow meters
GB588783A (en) * 1945-03-06 1947-06-03 Basil Dixon Bate Improvements in liquid flow meters
GB1208121A (en) * 1967-02-08 1970-10-07 British Oxygen Co Ltd Apparatus for metering a mixture of gas and liquid
GB1343130A (en) * 1972-02-02 1974-01-10 Fish A C Liquid level indicating system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191210151A (en) * 1912-04-29 1912-07-11 George Wilton Improved Sight Feed Apparatus for Indicating the Flow of Liquids.
FR996232A (en) * 1948-11-05 1951-12-17 Liquid flow meter
DE2447261A1 (en) * 1974-10-03 1976-04-08 Reuschenbach Hermann Flowmeter determining volumetric flow of liquids by pressure chamber - is used especially to measure milk flow in dairy installations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288725A (en) * 1927-01-14 1928-04-16 Daniel Arthur Quiggin Improvements in apparatus for indicating the rate of flow of a liquid in a mixed flow of liquid and gas; specially applicable to condensed water from steam-heating coils of evaporators for distilling plants, and the like
GB542784A (en) * 1940-08-28 1942-01-27 James Gilbert Corrie Improvements in flow meters
GB588783A (en) * 1945-03-06 1947-06-03 Basil Dixon Bate Improvements in liquid flow meters
GB1208121A (en) * 1967-02-08 1970-10-07 British Oxygen Co Ltd Apparatus for metering a mixture of gas and liquid
GB1343130A (en) * 1972-02-02 1974-01-10 Fish A C Liquid level indicating system

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185190A1 (en) * 1984-11-27 1986-06-25 Packo-Agri N.V. Method for continuously measuring the production of liquid from a liquid-gas mixture and meter for carrying out said method
EP0326231A1 (en) * 1985-08-14 1989-08-02 Ronald Northedge Fluid separator
EP0213838A1 (en) * 1985-08-14 1987-03-11 Ronald Northedge Flow meters
US4881412A (en) * 1985-08-14 1989-11-21 Ronald Northedge Flow meters
GB2180352A (en) * 1985-09-12 1987-03-25 Texaco Development Corp Petroleum stream monitoring
GB2180352B (en) * 1985-09-12 1989-09-06 Texaco Development Corp Petroleum stream monitoring means
FR2610105A1 (en) * 1987-01-26 1988-07-29 Elf Aquitaine METHOD AND DIPHASIC SEPARATOR-METER FOR MEASURING, CONTINUOUSLY AND RESPECTIVELY, THE QUANTITIES OF GAS AND LIQUID DELIVERED IN A DYNAMIC FLOW OF A MIXTURE OF GAS AND LIQUID
US4860591A (en) * 1987-01-26 1989-08-29 Societe Nationale Elf Aquitaine (Production) Gas-liquid separation and flow measurement apparatus
GB2201795A (en) * 1987-01-26 1988-09-07 Elf Aquitaine Flow measurement of gas/liquid mixture
EP0286259A2 (en) * 1987-04-10 1988-10-12 Texaco Development Corporation Multi-phase petroleum stream monitoring system
EP0286259A3 (en) * 1987-04-10 1991-01-09 Texaco Development Corporation Multi-phase petroleum stream monitoring system
FR2617592A1 (en) * 1987-07-02 1989-01-06 Hydrologic Sa Method intended for measuring flow rates of fluids in a pipe
GB2242373A (en) * 1990-03-26 1991-10-02 British Offshore Eng Tech Crude oil separator
GB2242373B (en) * 1990-03-26 1995-01-11 British Offshore Eng Tech Subsea separator,storage & pumping unit and its associated control system
EP0667510A1 (en) * 1994-02-14 1995-08-16 The BOC Group plc Fluid flow measurement
GB2286463A (en) * 1994-02-14 1995-08-16 Boc Group Plc Fluid flow measurement
US5679905A (en) * 1994-02-14 1997-10-21 The Boc Group Plc Fluid flow measurement
WO1995026494A1 (en) * 1994-03-25 1995-10-05 Total S.A. Device and method for mixing, measuring the flow rate of and supplying a multi-phase mixture
US5841020A (en) * 1994-03-25 1998-11-24 Total S.A. Apparatus and method for mixing, measuring and forwarding a multi-phase gas mixture
US6338276B1 (en) 1997-12-22 2002-01-15 Institut Francais Du Petrole Multiphase flow metering method and device
FR2772916A1 (en) * 1997-12-22 1999-06-25 Inst Francais Du Petrole Mass flow rate determination method for multiphase effluent
FR2772915A1 (en) * 1997-12-22 1999-06-25 Inst Francais Du Petrole METHOD AND DEVICE FOR POLYPHASE FLOWMETRY
WO2004042329A1 (en) * 2002-11-08 2004-05-21 Acos Limited Liquid flow measuring apparatus
WO2006135301A1 (en) * 2005-06-16 2006-12-21 Delaval Holding Ab Flow measurement apparatus
DE102014113898A1 (en) * 2014-09-25 2016-03-31 Endress+Hauser Flowtec Ag measuring arrangement
US10641635B2 (en) 2014-09-25 2020-05-05 Endress + Hauser Flowtec Ag Measuring arrangement
CN106092246A (en) * 2015-04-30 2016-11-09 斯普瑞斯-萨克有限公司 For determining the apparatus and method of the amount of on-condensible gas
EP3088862A3 (en) * 2015-04-30 2016-11-16 Spirax-Sarco Limited Apparatus and method for determining an amount of non-condensable gas
CN105909230A (en) * 2016-05-30 2016-08-31 四川科华石油化工设备工程有限公司 Three-phase separation testing device

Also Published As

Publication number Publication date
FR2494433A1 (en) 1982-05-21
JPS5786717A (en) 1982-05-29
DK511781A (en) 1982-05-20
DE3136763A1 (en) 1982-06-16

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