US3357256A - Sampling line for cryogenic liquid mixtures - Google Patents

Sampling line for cryogenic liquid mixtures Download PDF

Info

Publication number
US3357256A
US3357256A US480073A US48007365A US3357256A US 3357256 A US3357256 A US 3357256A US 480073 A US480073 A US 480073A US 48007365 A US48007365 A US 48007365A US 3357256 A US3357256 A US 3357256A
Authority
US
United States
Prior art keywords
liquid
tube
vessel
sampling line
refrigerated
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.)
Expired - Lifetime
Application number
US480073A
Inventor
Robert J Burch
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.)
Airco Inc
Original Assignee
Air Reduction Co Inc
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 Air Reduction Co Inc filed Critical Air Reduction Co Inc
Priority to US480073A priority Critical patent/US3357256A/en
Priority to GB35457/66A priority patent/GB1087106A/en
Application granted granted Critical
Publication of US3357256A publication Critical patent/US3357256A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0355—Insulation thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0358—Pipes coaxial
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0447—Composition; Humidity

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Hydrology & Water Resources (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1,087,106. Sampling liquids. AIR REDUCTION CO. Inc. Aug. 8, 1966 [Aug. 16, 1965], No. 35457/66. Heading B8N. An apparatus for taking samples of a liquefied gas 11 contained in a vessel 10 comprises acapillary tube 12 defining a flow path for the. liquid from the vessel to a vaporization chamber 16, a refrigerated zone 13 separated: from the latter chamber by a thermal barrier 18 and a means 19 for increasing the linear velocity of the liquid within the refrigerated zone. The refrigerated zone is formed by a tube 13 through which a refrigerant, such as liquid nitrogen, is pumped in order to maintain the temperature of the capillary tube 12 slightly below that of the liquid 11. The means 19, for increasing the linear velocity of the liquid is provided by flattening the tube. A metal rod 20 is provided for smoothing out temperature changes due to uneven flow of the refrigerant.

Description

R. J. BURCH 3,357,256
SAMPLING LINE FOR CRYOGBNIC LIQUID MIXTURES Dec. 12, 1967 INVENTOR ROBERT J. BURCH ATTORNEY United States Patent 3,357,256 SAMPLHNG LINE FQR CRYOGENIC LIQUID MIXTURE Robert J. Burch, Chatham, N.J., assignor to Air Reduction Company, Incorporated, New York, N.Y., a corporation of New York Filed Aug. 16, 1965, Ser. No. 486,073 5 Claims. (Cl. 73421) This invention relates to an arrangement for sampling liquefied gas, and more particularly to a sampling line constructed and arranged to effect removal of a true sample of a cryogenic liquid mixture from a vessel over the full range of temperatures and pressures encountered in cryogenic work.
Various arrangements have heretofore been proposed for Withdrawing a sample of a liquefied gas from a container for the purpose of determining the composition thereof by analyses. In general, such arrangements comprise withdrawing fluid from the container, through a tube, and passing such fluid into an evaporator through a throttling valve. However, in prior arrangements of this type, an uncontrolled evaporation of the fluid occurs in the tube ahead of the throttling valve. Hence, gas and liquid flow alternatingly and intermittently through the valve, whereby the sample ultimately received by the analysis apparatus is not identical with the composition of the liquid contained in the vessel from which the sample has been taken.
One prior arrangement directed to the provision of a vaporized sample having the same composition as the liquid in the vessel, comprises a capillary tube passing through a wall of the vessel, which tube extends outwardly of the wall for a short distance and terminates in a heated evaporator. The stream of liquid is completely vaporized within the heated evaporator and the vapor is caused to flow into a vaporization chamber. However, this arrangement does not always yield a true sample of a liquefied gas mixture since there is no assurance that vaporization of the liquefied gas does not occur in the capillary tube, particularly in that portion which protrudes into the vaporization chamber, which can give rise to backfiow of the gas and liquid into the vessel. Further, the requirement that the capillary tube extend outwardly of the vessel for only a short distance, minimizes the usefulness of such arrangement, since it is not often feasible to mount the vaporization chamber close to the wall of the vessel containing the liquefied gas.
An object of this invention is the provision of an improved sampling line for obtaining a true sample of a liquefied gas mixture for purpose of analyses.
An object of this invention is the provision of a sampling line to effect removal of a true sample of a liquefied gas mixture from a vessel over the full range of temperatures and pressures encountered in cryogenic work and for most vessel designs and modes of operation.
An object of this invention is the provision of a sampling line for withdrawing and vaporizing a sample of a cryogenic liquid mixture from a vessel, which arrangement is constructed and arranged to minimize vaporization of liquid in the sampling line, to prevent backfiow of any gas which may result from incipient vaporization of the liquid, to revent backfiow of any liquid from which gas has been vaporized, to remove small, undissolved particles from the sample stream, and to prevent precipitation of low boiling point components during the vaporization of the mixture.
An object of this invention is the provision of an arrangement for effecting removal of a true sample of a cryogenic fluid from a vessel, which arrangement comprises a capillary tube having an end extending into the liquid and the other end terminating in a minute orifice extending into a vaporization chamber, means refrigerat- 3,357,256 Patented Dec. 12, 1967 ing the portion of the capillary tube external of the vessel, means increasing the linear velocity of the fluid after it enters the capillary tube, and means to further increase the linear velocity of the fluid over the length of the capillary tube where the temperature changes from the refrigerated value to the temperature of the vaporization chamber.
These and other objects and advantages will become apparent from the following description when taken with the accompanying drawing. It will be understood, however, that the drawing is for purposes of illustration and is not to be construed as defining the scope or limits of the invention, reference being had for the latter purpose to the claims appended hereto.
Reference now is made to the single figure of the draw ing which is a diagrammatic illustration of apparatus made in accordance with this invention. The reference numeral 1! identifies the wall of a vessel containing a liquefied gas mixture 11. A capillary tube 12, made of stainless steel, and having an internal diameter of approximately 1.18 mm., extends through an opening formed in the wall of the vessel and passes through a larger tube 13. The capil lary tube may have any length required for the removal of the sample. One end of the capillary tube is enlarged and formed into a helical coil 14 disposed in the liquid mixture. The other end of the capillary tube has connected thereto a hypodermic tube 15, which extends into a vaporization chamber 16 provided with a flow control valve 17. The hypodermic tube also is made of stainless steel and has an internal diameter of approximately 0.2 mm. Disposed between the end of the larger tube 13 and the chamber 16 is a thermal barrier 18, which barrier may be a suitable, solid heat-insulating material or a vacuum space. The hypodermic tube passes through the thermal barrier.
A portion of the capillary tube 12 is flattened, as indicated by the numeral 19, such flattened portion and the contiguous unflattened tube portions being enclosed within a rod 20 made of a metal having a good thermal conductivity. During use of the sampling line, a refrigerant, in liquid or vapor form, is pumped through the tube 13, said tube being provided with openings 21 for exit of the refrigerant. Thus, the portion of the sampling line which is external of the vessel 10 is refrigerated up to the point where the hypodermic tube 15 passes through the thermal barrier 18.
The helical coil 14,
which is immersed in the liquefied gas 11, allows a liquid sample to be withdrawn while the sample is refrigerated at the exact temperature of the liquefied gas 11, and without a pressure drop, so that there is no vaporization of the liquid components within the coil. A porous plug inserted into a somewhat enlarged line may be used in place of the helical coil, but the latter is simpler to construct and install.
The refrigeration of the capillary tube 12 to a temperature sli htly below the temperature of the liquid 11 insures that only liquid will be present throughout the length of this tube. This is particularly important since the sampling line must handle varied combinations of liquefied mixtures, such as solids in liquids, liquids in liquids and gases in liquids. Refrigeration may be effected by using pumped liquid nitrogen, or cold nitrogen gas. Also, refrigeration may be effected by using the liquefied gas 11 when a throttling valve is used in place of the exit holes 21, or by using the larger tube 13 as a vapor sampling line.
The rod 20 provides a means for smoothing out tem-- perature oscillations due to uneven flow of the refrigerant, which is particularly important for gas-liquid refrigerants. The flattened portion of the sampling line increases the linear velocity of the liquid mixture after it has passed well into the sampling line, inhibits the backflow of any gas which may result from incipient vaporization of the liquid and, further, serves to remove small, undissolved particles.
The hypodermic tube, passing through the thermal barrier, further increases the linear liquid velocity thereby to prevent vaporization of the sample over the critical length Where the temperature changes from that of the refrigerant to that of the vaporization chamber and, also, prevents precipitation of those dissolved components of the liquefied gas mixture having a high boiling point. Further, such high linear velocity of the fluid through the hypodermic tube provides for a visual indication, by means of a flow meter and pressure drop, that the sampling line is, indeed, filled with the liquid mixture at all times during the sampling period.
A sampling line made in accordance with this invention is particularly adapted for use with cryogenic liquid mixtures, for example, mixtures of solid krypton and liquid oxygen, and mixtures of neon and helium gases in liquid nitrogen, and functions to provide a true sample of the particular mixture for purposes of analysis.
Having now described the invention, those skilled in this art will be able to make various changes and modifications without thereby departing from the spirit and scope of the invention as recited in the following claims.
I claim:
1. A sampling line for a liquefied gas mixture contained within a vessel, comprising,
(a) means forming a refrigerated zone external of the vessel,
(b) means forming a flow path for the flow of liquid from the vessel through said refrigerated zone and into a vaporization zone,
(c) means to increase the linear velocity of the liquid within said refrigerated zone, and
(d) means forming a thermal barrier between the refrigerated and vaporization zones.
2. The invention as recited in claim 1, including means to further increase the linear velocity of the liquid just before and as it exits from said refrigerated zone through the thermal barrier.
3. In an arrangement for obtaining a sample of a liquefied gas mixture contained within a vessel, the combination of,
(a) a tube extending through a wall of the vessel, said tube having one end disposed in the liquid within 5 the vessel and the other end connected to a hypodermic tube of reduced cross-sectional area,
(b) means to increase the linear velocity of the liquid in said tube prior to passage thereof to the said hypodermic tube, and
(c) means refrigerating the entire length of the tube within which the linear velocity of the liquid is increased.
4. A sampling arrangement for a cryogenic liquid mixture contained within a vessel, said arrangement comp (a) a first tube passing through a wall of the vessel and having an inner end disposed in the contained liquid, said tube having a flattened intermediate portion external of the vessel,
(b) a vaporization chamber,
(c) a second tube spaced from and surrounding the external portion of the said first tube,
(d) a thermal barrier zone between the said second tube and the vaporization chamber,
(e) a hypodermic tube connected to the other end of the said first tube, said hypodermic tube passing through the said thermal barrier zone and extending into the vaporization chamber, and
(f) a refrigerant fiowing through the said second tube.
5. The invention as recited in claim 4, including a member surrounding and in contact with the said flattened portion of said first tube, said member being made of a metal having a good thermal conductivity.
728,134 11/1942 Germany.
LOUIS R. PRINCE, Primary Examiner.
S. C. SWISHER, Assistant Examiner.

Claims (1)

1. A SAMPLING LINE FOR A LIQUEFIED GAS MIXTURE CONTAINED WITHIN A VESSEL, COMPRISING (A) MEANS FORMING A REFRIGERATED ZONE EXTERNAL OF THE VESSEL, (B) MEANS FORMING A FLOW PATH FOR THE FLOW OF LIQUID FROM THE VESSEL THROUGH SAID REFRIGERATED ZONE AND INTO A VAPORIZATION ZONE, (C) MEANS TO INCREASE THE LINEAR VELOCITY OF THE LIQUID WITHIN SAID REFRIGERATED ZONE, AND (D) MEANS FORMING A THERMAL BARRIER BETWEEN THE REFRIGERATED AND VAPORIZATION ZONES.
US480073A 1965-08-16 1965-08-16 Sampling line for cryogenic liquid mixtures Expired - Lifetime US3357256A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US480073A US3357256A (en) 1965-08-16 1965-08-16 Sampling line for cryogenic liquid mixtures
GB35457/66A GB1087106A (en) 1965-08-16 1966-08-08 Sampling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US480073A US3357256A (en) 1965-08-16 1965-08-16 Sampling line for cryogenic liquid mixtures

Publications (1)

Publication Number Publication Date
US3357256A true US3357256A (en) 1967-12-12

Family

ID=23906570

Family Applications (1)

Application Number Title Priority Date Filing Date
US480073A Expired - Lifetime US3357256A (en) 1965-08-16 1965-08-16 Sampling line for cryogenic liquid mixtures

Country Status (2)

Country Link
US (1) US3357256A (en)
GB (1) GB1087106A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487692A (en) * 1968-05-24 1970-01-06 Vehoc Corp Method and apparatus for sampling refrigerated volatile liquids
US4693124A (en) * 1986-02-25 1987-09-15 Micromeritics Instrument Co. Temperature controlling apparatus for use with pore volume and surface area analyzers
US4991449A (en) * 1988-06-02 1991-02-12 Canadian Liquid Air Ltd-Air Liquide Canada Ltee Method and apparatus for sampling a cryogenic liquid for analysis
USRE33567E (en) * 1986-02-25 1991-04-09 Micromeritics Instrument Corporation Temperature controlling apparatus for use with pore volume and surface area analyzers
US5092183A (en) * 1989-03-14 1992-03-03 Dragerwerk Aktiengesellschaft Device for cooling testing tubes
US20030228707A1 (en) * 2002-04-25 2003-12-11 David Meneses Method and system for sampling cryogenic liquids, and air separation unit provided with at least one such system
WO2018144645A1 (en) * 2017-01-31 2018-08-09 Perkinelmer Health Sciences, Inc. Coiled wire sampler
EP3454035A1 (en) * 2017-09-07 2019-03-13 Sick Ag Device for continuously sampling and preparing a fluid sample from a liquefied gas conveying process line
US10473561B2 (en) * 2017-11-28 2019-11-12 Air Liquide Canada, Inc. Method of sampling a cryogenic liquid
US10481049B2 (en) * 2017-11-28 2019-11-19 Air Liquide Canada, Inc. Cryogenic liquid sampler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE728134C (en) * 1941-06-26 1942-11-20 Ig Farbenindustrie Ag Method and device for the continuous taking of samples from gases liquefied under pressure, in particular gas mixtures
US3133444A (en) * 1961-08-16 1964-05-19 Linde Eismasch Ag Sampling arrangement for liquid gases

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE728134C (en) * 1941-06-26 1942-11-20 Ig Farbenindustrie Ag Method and device for the continuous taking of samples from gases liquefied under pressure, in particular gas mixtures
US3133444A (en) * 1961-08-16 1964-05-19 Linde Eismasch Ag Sampling arrangement for liquid gases

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487692A (en) * 1968-05-24 1970-01-06 Vehoc Corp Method and apparatus for sampling refrigerated volatile liquids
US4693124A (en) * 1986-02-25 1987-09-15 Micromeritics Instrument Co. Temperature controlling apparatus for use with pore volume and surface area analyzers
USRE33567E (en) * 1986-02-25 1991-04-09 Micromeritics Instrument Corporation Temperature controlling apparatus for use with pore volume and surface area analyzers
US4991449A (en) * 1988-06-02 1991-02-12 Canadian Liquid Air Ltd-Air Liquide Canada Ltee Method and apparatus for sampling a cryogenic liquid for analysis
US5092183A (en) * 1989-03-14 1992-03-03 Dragerwerk Aktiengesellschaft Device for cooling testing tubes
US20030228707A1 (en) * 2002-04-25 2003-12-11 David Meneses Method and system for sampling cryogenic liquids, and air separation unit provided with at least one such system
US7337616B2 (en) * 2002-04-25 2008-03-04 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude System for sampling cryogenic liquids, and air separation unit provided with at least one such system
WO2018144645A1 (en) * 2017-01-31 2018-08-09 Perkinelmer Health Sciences, Inc. Coiled wire sampler
EP3454035A1 (en) * 2017-09-07 2019-03-13 Sick Ag Device for continuously sampling and preparing a fluid sample from a liquefied gas conveying process line
WO2019048258A1 (en) * 2017-09-07 2019-03-14 Sick Ag Device for continuously taking and treating a liquid sample from a process line conducting liquid gas
US10473561B2 (en) * 2017-11-28 2019-11-12 Air Liquide Canada, Inc. Method of sampling a cryogenic liquid
US10481049B2 (en) * 2017-11-28 2019-11-19 Air Liquide Canada, Inc. Cryogenic liquid sampler

Also Published As

Publication number Publication date
GB1087106A (en) 1967-10-11

Similar Documents

Publication Publication Date Title
US3357256A (en) Sampling line for cryogenic liquid mixtures
London et al. Osmotic pressure of He 3 in liquid He 4, with proposals for a refrigerator to work below 1 K
Donnelly et al. Phase equilibria in the carbon dioxide–methane system
Borisov et al. Rarefaction shock wave near the critical liquid–vapour point
US3611746A (en) Cryostat for cooling vacuum-housed radiation detector
GB1310766A (en) Apparatus for the continuous cooling of objects to temperatures below 2.18k
Barton et al. A boiling point method for determination of vapor pressures of molten salts
US3296821A (en) Microtome including freezing attachments
US3031887A (en) Device for measurement of liquid level or volume of liquefied gases
US3133444A (en) Sampling arrangement for liquid gases
US3264862A (en) Process and device for analyzing binary fluid mixtures
US3424230A (en) Cryogenic refrigeration device with temperature controlled diffuser
US3415078A (en) Infrared detector cooler
Romer Nuclear spin relaxation in liquid he 3 ii
GB1512991A (en) Cryosurgical probe
US4481780A (en) Process for the generation of a cold gas
US3166915A (en) Cooling arrangement
US2475317A (en) Thermometer filling system
US2982106A (en) Low temperature refrigeration apparatus and process
Gaffney et al. Liquid Helium Level‐Finder
US3557604A (en) Method and apparatus for measuring of a gas forming part of a gas mixture,preferably for measuring the quantity of carbon of solid bodies such as steel and carbides
Taconis Chapter V 3He Cryostats
US2005323A (en) Distilling and fractionating apparatus
SU530143A1 (en) Cryogenic Fluid Pipeline
Cheng et al. A Simple, Versatile Swenson Cryostat