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WO1986002450A1 - Device for taking undisturbed and pressurized samples of ground-water (and gas) in open systems - Google Patents

Device for taking undisturbed and pressurized samples of ground-water (and gas) in open systems Download PDF

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Publication number
WO1986002450A1
WO1986002450A1 PCT/SE1985/000403 SE8500403W WO8602450A1 WO 1986002450 A1 WO1986002450 A1 WO 1986002450A1 SE 8500403 W SE8500403 W SE 8500403W WO 8602450 A1 WO8602450 A1 WO 8602450A1
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WO
WIPO (PCT)
Prior art keywords
housing
holder
sample container
gas
sample
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.)
Ceased
Application number
PCT/SE1985/000403
Other languages
French (fr)
Inventor
Bengt-Arne Torstensson
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1986002450A1 publication Critical patent/WO1986002450A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • 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
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2294—Sampling soil gases or the like
    • 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
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • 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
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G01N2001/248—Evacuated containers

Definitions

  • Figures la-d show some different applications for the sampling device, viz.:
  • the sampling device is lowered down to the desired elevation with the aid of a flexible tube (2) which is sealingly connected to the sampling device (1).
  • the sampling device is activated by the aid of an over-pressure (p) which is temporarily applied in the tube (2).
  • p over-pressure
  • the over-pressure can simply be applied with the aid of a hand-pump or a cylinder with compressed gas, equipped with a pressure regulation valve.
  • the sampling device contains a hermetically sealed sample container (9).
  • the sample container (9) is
  • the sample container can for example be evacuated before it is mounted in the sampling device.
  • the sample container (9) rests against two compression springs (17;18) having mutually diffe ⁇ rent spring characteristics.
  • the two compression springs (17;18) can be replaced with one single compression spring (32) having a variable pitch which gives it a progressive spring charac- teristic, cf. Fig. 9.
  • the sampling device (1) is closed with a stopper (21) av elastic material.
  • the sampling device does also contain a double-sided hypodermic needle (16) which is mounted in a moveable holder (13) which rests against a compression spring (19).
  • the sampling device In its upper end the sampling device contains a piston (11) which is sealed against the inside of the housing (10) with the aid of a sealing element (12).
  • a connector (26) In the uppermost end of the sampling device is mounted a connector (26) for making possible a leak-tight connection of the tube (2).
  • the hypodermic needle can firstly be pulled out of the stopper (23) before the other end of the needle is pulled out of the stopper (21). In this manner a hermetically sealed sample is obtained which is pres ⁇ surized to the same pressure (P n )/ which acts in the liquid at the sampling elevation.
  • Figure 8 shows a filtering device which can be attached to the lower end of the sampling device instead of the stopper (21), cf. Fig. 7.
  • the filtering device contains among other things a stopper (21) and a filter (28) which is mounted on a holder (29). The end-surfaces of the filter rest against sealing discs (31) of elastic material.

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

Abstract

Sampling device for taking pressurized samples of liquid and/or gas. The sampling device contains a hermetically sealed and an at least partly evacuated sample container (9). The sample container is sealed by an element (23) of flexible material. The sampling device does also contain a double-ended hypodermic needle (16). When activating the sampling device, which is made by applying an over-pressure, the hypodermic needle (16) penetrates through the element (23) of flexible material whereby a sample is being transferred to the sample container (9).

Description

Device for taking undisturbed and pressurized samples of groundwater (and gas) in open systems.
.Below follows a brief description of a new device for the taking of undisturbed and pressurized samples of water (and/or gas) in open systems. The basic struc¬ ture of the device including some examples of applica¬ tions are shown in the accompanying drawings,Figs. 1-7.
Figures la-d show some different applications for the sampling device, viz.:
- Fig. la : sampling of water in dril 1-holes in soil or rock - Fig. lb sampling of water in wells
- Fig. lc sampling in lakes or at sea
- Fig. Id- sampling of water in sewer lines At the taking of a sample the sampling device is lowered down to the desired elevation with the aid of a flexible tube (2) which is sealingly connected to the sampling device (1). The sampling device is activated by the aid of an over-pressure (p) which is temporarily applied in the tube (2). For example, the over-pressure can simply be applied with the aid of a hand-pump or a cylinder with compressed gas, equipped with a pressure regulation valve.
An embodiment of the sampling device is shown in Figs. 2-4. The sampling device contains a hermetically sealed sample container (9). The sample container (9) is
Figure imgf000003_0001
sealed with stopper (23) of elastic material which is mounted in a screw-cap (22). The sample container can for example be evacuated before it is mounted in the sampling device. The sample container (9) rests against two compression springs (17;18) having mutually diffe¬ rent spring characteristics. Alternatively, the two compression springs (17;18) can be replaced with one single compression spring (32) having a variable pitch which gives it a progressive spring charac- teristic, cf. Fig. 9. In the lowermost end, the sampling device (1) is closed with a stopper (21) av elastic material.
The sampling device does also contain a double-sided hypodermic needle (16) which is mounted in a moveable holder (13) which rests against a compression spring (19). In its upper end the sampling device contains a piston (11) which is sealed against the inside of the housing (10) with the aid of a sealing element (12). In the uppermost end of the sampling device is mounted a connector (26) for making possible a leak-tight connection of the tube (2). When the sample container is inserted into the sampling device a prestress is generated in the compression springs (17;18;19). Figures 3-4 illustrate the sampling procedure. When an over-pressure (p) is applied in the tube (2) the piston (11) will be displaced downwards and simul¬ taneously it pushes also the sample container (9) down- wards, cf. Fig.3. When the screw-cap (22) has reached its end-position and rests against the needle holder (13), the double-ended needle has penetrated both the stopper (23) and the stopper (21). By choosing a suitable relationship between the characteristics of the compression springs (17;18;19), alternatively the com¬ pression springs (32;19), it is possible to make the hypodermic needle to penetrate firstly the stopper (21) and secondly the stopper (23). When the hypodermic needle has penetrated the two sealing elements (21;23), liquid (and/or gas) starts to fill the sample container (9). The over-pressure (p) is maintained until equili¬ brium has been reached between the pressure (p ) , acting in the liquid at the sampling elevation, and the pres¬ sure inside the sample container. When the over-pressure (p) in the activation tube (2) is released the needle holder (13) and the sample container (9) will be dis¬ placed upwards due to the prestress of the compression springs (17;18;19), alternatively compression springs (32;19). By choosing a suitable relationship between the characteristics of the compression springs (see above), the hypodermic needle can firstly be pulled out of the stopper (23) before the other end of the needle is pulled out of the stopper (21). In this manner a hermetically sealed sample is obtained which is pres¬ surized to the same pressure (Pn)/ which acts in the liquid at the sampling elevation.
By choosing suitable material for the stoppers (21;23) and by designing the sampling device in an adequate manner it can be made possible to take pressurized samples at ambient pressures (pQ) as high as 100-200 bars.
Figure 8 shows a filtering device which can be attached to the lower end of the sampling device instead of the stopper (21), cf. Fig. 7. The filtering device contains among other things a stopper (21) and a filter (28) which is mounted on a holder (29). The end-surfaces of the filter rest against sealing discs (31) of elastic material.

Claims

Claims 1. A device for taking pressurized samples of liquid and/or gas, comprising a housing (10) which contains at least one mobile, completely or partially evacuated sample container (9) , of which the end facing downwards is hermetically sealed by a first element (23) of flexible material, furthermore the housing (10) contains a movable piston (11) which is sealed against the inside of the housing, a double-ended hypodermic needle (16) which is mounted in a mobile holder (13), means (17;18) to exert a counterforce on the sample container (9) when this is displaced longitudinally towards the holder (13), a second element (21) of flexible material which is mounted in a second holder (20) connected to the lowermost end of the housing (10), means (19) to exert a counterforce against the holder (13) when this is displaced towards the plug (14) characterized in that when a sample of liquid/and gas is to be taken the device is activated with the aid of an over-pressure (p) which is applied to the upper end of the housing (10) by means of a tube (2) connected to the housing, whereby the piston (11) together with the sample container (9) will be displaced longitudinally downwards simultaneously as the double- ended hypodermic needle due to the action of the ele¬ ments (17;18) and (19) is brought to selectively penetrate firstly the second element (21) and secondly the first element (23) whereby a sample can be transferred to the container (9) .
2. A device as defined in claim 1, characterized in that the counteracting means are compression springs (17;18) and (19) .
3. A device as defined of claims 1 and 2, characterized in that the compression springs (17;18) are replaced by one single compression spring (32) having a variable pitch which gives it a variable characteristic.
4. A device as defined in any one or some of the preceding claims, characterized in that a filter (28) is connected to the holder (14) .
5. A device as defined in any or some of the preceding claims, characterized in that the elements (21) and (23) are made of crude rubber or an elastomer.
PCT/SE1985/000403 1984-10-18 1985-10-18 Device for taking undisturbed and pressurized samples of ground-water (and gas) in open systems Ceased WO1986002450A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8405213A SE8405213L (en) 1984-10-18 1984-10-18 DEVICE FOR TAKING UNSTORTABLE AND PRESSURE WATER (AND GAS) SAMPLES IN OPEN SYSTEM
SE8405213-3 1984-10-18

Publications (1)

Publication Number Publication Date
WO1986002450A1 true WO1986002450A1 (en) 1986-04-24

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Application Number Title Priority Date Filing Date
PCT/SE1985/000403 Ceased WO1986002450A1 (en) 1984-10-18 1985-10-18 Device for taking undisturbed and pressurized samples of ground-water (and gas) in open systems

Country Status (3)

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EP (1) EP0198046A1 (en)
SE (1) SE8405213L (en)
WO (1) WO1986002450A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024214A1 (en) * 1990-07-31 1992-02-06 Diehl Gmbh & Co SAMPLING DEVICE
DE4023840A1 (en) * 1990-07-27 1992-02-06 Wiederaufarbeitung Von Kernbre SAMPLE CONTAINER FOR TAKING GAS SAMPLES AND / OR LIQUID SAMPLES, ESPECIALLY FROM THE SECURITY CONTAINER OF A NUCLEAR POWER PLANT
DE4409354A1 (en) * 1994-03-18 1995-09-21 Kloeckner Humboldt Deutz Ag Pneumatic tube conveyor can for reception and transport of material sample
US8505396B2 (en) 2008-07-18 2013-08-13 Allpure Technologies, Inc. Fluid transfer device
US8517998B2 (en) 2002-04-26 2013-08-27 Emd Millipore Corporation Disposable, sterile fluid transfer device
US8539988B2 (en) 2008-12-18 2013-09-24 Emd Millipore Corporation Device for the transfer of a medium
US8544497B2 (en) 2009-10-30 2013-10-01 Emd Millipore Corporation Fluid transfer device and system
US8544349B2 (en) 2008-07-18 2013-10-01 Allpure Technologies, Inc. Fluid transfer device
US8549935B2 (en) 2003-12-23 2013-10-08 Emd Millipore Corporation Disposable, pre-sterilized fluid receptacle sampling device
US8613422B2 (en) 2008-07-18 2013-12-24 Allpure Technologies, Inc. Fluid transfer device
US8690120B2 (en) 2007-11-16 2014-04-08 Emd Millipore Corporation Fluid transfer device
US9028779B2 (en) 2008-12-18 2015-05-12 Emd Millipore Corporation Device for the transfer of a medium
US9568113B2 (en) 2010-01-15 2017-02-14 Allpure Technologies, Llc Fluid transfer device
US9975753B1 (en) 2017-04-26 2018-05-22 Sartorius Stedim North America Inc. Detachable fluid transfer device accessory and a fluid transfer assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115575191B (en) * 2022-12-05 2023-05-09 启东胜科水务有限公司 Hydrologic detection sampling device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872817A (en) * 1956-06-01 1959-02-10 Jersey Prod Res Co Fluid sampler
US3200649A (en) * 1962-12-21 1965-08-17 Weyerhaeuser Co Sewer sampling system
SE432306B (en) * 1981-03-27 1984-03-26 Torstensson Bengt Arne DEVICE FOR SOIL AND SOIL GROUND WATER SAMPLING INCLUDING ATMINTONE PARTIAL EVACUATED MOBILE SAMPLING TANK
SE433667B (en) * 1980-04-11 1984-06-04 Svenska Traeforskningsinst Arrangement for taking samples out of a suspension flowing through a section of pipe
US4453424A (en) * 1981-04-29 1984-06-12 Haly, Inc. Molten metal sampler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872817A (en) * 1956-06-01 1959-02-10 Jersey Prod Res Co Fluid sampler
US3200649A (en) * 1962-12-21 1965-08-17 Weyerhaeuser Co Sewer sampling system
SE433667B (en) * 1980-04-11 1984-06-04 Svenska Traeforskningsinst Arrangement for taking samples out of a suspension flowing through a section of pipe
SE432306B (en) * 1981-03-27 1984-03-26 Torstensson Bengt Arne DEVICE FOR SOIL AND SOIL GROUND WATER SAMPLING INCLUDING ATMINTONE PARTIAL EVACUATED MOBILE SAMPLING TANK
US4453424A (en) * 1981-04-29 1984-06-12 Haly, Inc. Molten metal sampler

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023840A1 (en) * 1990-07-27 1992-02-06 Wiederaufarbeitung Von Kernbre SAMPLE CONTAINER FOR TAKING GAS SAMPLES AND / OR LIQUID SAMPLES, ESPECIALLY FROM THE SECURITY CONTAINER OF A NUCLEAR POWER PLANT
DE4024214A1 (en) * 1990-07-31 1992-02-06 Diehl Gmbh & Co SAMPLING DEVICE
DE4409354A1 (en) * 1994-03-18 1995-09-21 Kloeckner Humboldt Deutz Ag Pneumatic tube conveyor can for reception and transport of material sample
US8562572B2 (en) 2002-04-26 2013-10-22 Emd Millipore Corporation Disposable, sterile fluid transfer device
US8517998B2 (en) 2002-04-26 2013-08-27 Emd Millipore Corporation Disposable, sterile fluid transfer device
US9482351B2 (en) 2002-04-26 2016-11-01 Emd Millipore Corporation Disposable, sterile fluid transfer device
US8579871B2 (en) 2002-04-26 2013-11-12 Emd Millipore Corporation Disposable, sterile fluid transfer device
US8549935B2 (en) 2003-12-23 2013-10-08 Emd Millipore Corporation Disposable, pre-sterilized fluid receptacle sampling device
US8646342B2 (en) 2003-12-23 2014-02-11 Emd Millipore Corporation Disposable, pre-sterilized fluid receptacle sampling device
US10247312B2 (en) 2007-11-16 2019-04-02 Emd Millipore Corporation Fluid transfer device
US8690120B2 (en) 2007-11-16 2014-04-08 Emd Millipore Corporation Fluid transfer device
US8544349B2 (en) 2008-07-18 2013-10-01 Allpure Technologies, Inc. Fluid transfer device
US8505396B2 (en) 2008-07-18 2013-08-13 Allpure Technologies, Inc. Fluid transfer device
US8613422B2 (en) 2008-07-18 2013-12-24 Allpure Technologies, Inc. Fluid transfer device
US9150825B2 (en) 2008-12-18 2015-10-06 Emd Millipore Corporation Device for the transfer of a medium
US9028779B2 (en) 2008-12-18 2015-05-12 Emd Millipore Corporation Device for the transfer of a medium
US9120585B2 (en) 2008-12-18 2015-09-01 Emd Millipore Corporation Device for the transfer of a medium
US9279100B2 (en) 2008-12-18 2016-03-08 Emd Millipore Corporation Device for the transfer of a medium
US9296983B2 (en) 2008-12-18 2016-03-29 Emd Millipore Corporation Device for the transfer of a medium
US8539988B2 (en) 2008-12-18 2013-09-24 Emd Millipore Corporation Device for the transfer of a medium
US8919365B2 (en) 2009-10-30 2014-12-30 Emd Millipore Corporation Fluid transfer device and system
US8915264B2 (en) 2009-10-30 2014-12-23 Emd Millipore Corporation Fluid transfer device and system
US8544497B2 (en) 2009-10-30 2013-10-01 Emd Millipore Corporation Fluid transfer device and system
US9568113B2 (en) 2010-01-15 2017-02-14 Allpure Technologies, Llc Fluid transfer device
US9975753B1 (en) 2017-04-26 2018-05-22 Sartorius Stedim North America Inc. Detachable fluid transfer device accessory and a fluid transfer assembly

Also Published As

Publication number Publication date
SE8405213D0 (en) 1984-10-18
EP0198046A1 (en) 1986-10-22
SE8405213L (en) 1986-04-19

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