US2999738A - Automatic device for taking samples of active solutions - Google Patents

Automatic device for taking samples of active solutions Download PDF

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Publication number
US2999738A
US2999738A US836090A US83609059A US2999738A US 2999738 A US2999738 A US 2999738A US 836090 A US836090 A US 836090A US 83609059 A US83609059 A US 83609059A US 2999738 A US2999738 A US 2999738A
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US
United States
Prior art keywords
bottle
valve
vacuum
solution
enclosure
Prior art date
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Expired - Lifetime
Application number
US836090A
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English (en)
Inventor
Redon Andre
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
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.)
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Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
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Publication of US2999738A publication Critical patent/US2999738A/en
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    • 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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0093—Radioactive materials
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
    • G21F7/068—Remotely manipulating devices for fluids

Definitions

  • The'pre'sent invention relates to an automatic device for taking samples of active solutions, which makes it possible to' reduce the number of actions and affords efiicient protection against radiation and contamination.
  • i"-The device is essentially characterized by the combination of the following elements: j -"(l) :An electro-pneumatic motor system constituted on the one hand by a liquid switch which makes use ofthe contact of the active solution .with the conduit feeding the sample bottle, the movement of the solution which is subjected to a lowering of pressure caused by av single action of the operator, creating such contact" and at the same time causing the solution to enter the.
  • a positioning device for the sampling bottle surrounded by the lead container which has a removable lid, the bottle enclosed by the container with its lid being brought to face the feeding conduit or removed from this position by means of a carriage, the lid of the container being removed when the bottle is subsequently adapted to the feeding conduit for'filling, and being replaced after this operation.
  • T (4) A safety device in case the system is not funct'ionin'g'properly, which makes it possible to return the system to its initial condition by interrupting the vacuum and bringing the enclosure to atmospheric pressure, the safety device being operated: g
  • the device in accordance with the invention makes p in the reserve vessel is sucked into this enclosure and the operator.
  • the device also. makes it possible to empty the sampling bottle.
  • the sample bottle communicates through the feeding conduit With an internal enclosure which-holds the active solution.
  • the feeding conduit consists at the bottle end of a hypodermic needle on which is stuck the bottle; this avoids any danger of contamination by the liquid.
  • the enclosure communicates with a solution reserve vessel and is connected to a vacuum device through a first valve named vacuum valve,” and to the atmosphere through a second valve named. "atmospheric valve.”
  • the device is located inside an external lead enclosure, except for the end of the feeding conduit on which is adapted externally of the lead enclosure the sample bottle.
  • the vacuum valve and the atmospheric valve may be;
  • the sample bottle is inside or outside the lead enclosure.
  • a protective lead container which, when thesample bottle is in place, forms with the lead enclosure an assembly ensuring total protection against radiation.
  • the protective container must be such as to assure complete protection; for this purpose it is provided with a lid. The latter is removed when the feeding conduit is adapted to the bottle.
  • the vacuum circuit must enable the elimination of droplets of active liquid carried along during the sucking stage; this may be efiected by means of a guard vesselin the vacuum circuit.
  • Thesample bottle is preferably mounted in upside down position above theenclosure, the feeding conduit being vertical and the movement of liquid in said conduit being upward from the bottom, from the enclosure to the bottle.
  • a vacuum is created in the internal- The latter, as well as the bottle, is initially empty of solution. Due to the vacuum which- During all the time that the vacuum- If the arrangeuan i y a '3'; l ltiqllmay still penetrate into 'ndult s c u e by r flux f he-rat s of o ution to:
  • A-safety system isprovided in case the device does not function properly; the latter thus comes back to -itsand the sample bottle 3 sealed by a rubber stopper; of h .3 .11 We as P n c n b l with t ed n on.- duit 4 terminated by a hypodermic needle 5 on which is stuck the bottle 3.
  • the feeding conduit 4 is electrically insulated from the enclosure 2 by a plug 6.
  • the safety system. is put into operation: I (1) By a second contact of the liquid Wildflthfiobtk; tact oi the liquid with the feeding circuit'has not worked.
  • FIGURE 1 represents an automatic devicefortaking ples of active solutions; in accordance: with them vention. Y
  • FIGURE 2- is: a diagram of; the electrigcontrol panel. of 'said device; the. panel is-out's'ide the lead enclosure" and remote from the device. a I
  • FIGURE-1 shows the reverse vessel' 1; the internal by a plug 8 makes its possible to establish a contact beween th acti e lution and t P n, e ontact bet e n theact ve ol io nd. the feedin u 4 ha not functioned.
  • a vessel '9 constitutes a guard on the vacuum circuit and makes it possible to remove droplets f m he rhich. hasb en, su k d n An; electr magnetic valve 1! controls the evacuation of the enclosure 2 and an electromagnetic valve 11 places the enclosure in communication with the atmosphere. Shown very schematically in the.
  • valves 10. and 11 indicated res spectively at 12 and 13.
  • the vacuum valve 10 com! prisesv a switch 14 whichis-opened only when the valve is completely closed.
  • the atmospheric valve 11 com prises a switch 15 which is closed only when the valve is completely closed.
  • A- conducting wire 16? connected to 'the'portion of the feeding circuit 4 situated between the bottle 3 and the enclosure 2 and connected to the upper extremity of. the probe 7, ends in a terminal A.
  • a conductor 17 connected to the enclosure 2 ends in a; terminal B.
  • terminals A and B, as well as the terminals or? windings 12 and 13, and of switches 14 and 15, are'connected. to the controlpanel.
  • a shut-elf valve 18' is placed in the conduit of-the solution betweenthe reverse vessel 1 and the-enclosures 2; This valve: remains always open when samples; are taken, and it is closed when the. bottle 3 is drained; the valve is controlledfrom the outside manually orautomatically.
  • the device. is protected by a lead enclosure: 19. valves 10 and 11. are. outside the enclosure.
  • the needle: 5 which is. designed ⁇ - to be stuck into the-bottle 3, projects externally of the enclosure.
  • Thebottle is inside alead container20.
  • lid- 21 of: container 20 is shown on a; carriage; 22; there; is also shown a lifting device. 23.
  • the enclosure 2-, the feeding conduit 4. the probe: 7-;- the-vacuum guard vessel and the connection tubing are of very low'ca'rbon 1.8/8 stainless. steel.
  • the insulating plugs and 8- are of Teflon (tetrafiuoroethylene'resin; trademark owned by E; I. duPontde- Nemours & Co.).
  • the device is used for'taking samples of concentrated: solutions of fissionproducts, resulting from the treatment of irradiated fuels.
  • the sample bottle 3 isplaced in the lead container 20.
  • the latter is mounted upside. down on the carriage 22 which carries it under the lifting device 23.
  • lathe-first place the, container 20 is lifted to permit removal of the lid 21;.
  • the carriage 22 supporting the lid 21 is moved? aside.
  • the container is lowered so as to stick the bottle 3 .on the hypodermic needle 5.
  • the bottle 3 is thus in the position required for the taking, of'a sample. Filling; of 'the bottle is carried out as follows:
  • shut ottgvalve 18 and the atmospheric valve, 1 1' being Qpent he acuum. alve 1Qbe ng.,c dith mpl bottle. 3 surm udedbv t contai r. eing s u k n h hypodermic needle 5, action of the operator on apush button of the control panel causes closure of the stripesnhs c al e 1... B li g. hen. takes. place. automa ic lly; theend'ofthe closingmovement of thezatmospheric v lve 11; causes by' theintermed atfy. Qiihfi. sw tch.
  • the bottle 3 and the enclosure 2 are under vacuum; when this valve opens the vacuum is suppressed and a certain quantity of liquid has already risen in the feeding conduit 4; this conduit may still receive some liquid after opening of the atmospheric valve 11; at a given moment there takes place separation of the body of liquid from the fraction which has risen in the feeding conduit 4.
  • the bottle 3 being then at a lower pressure thanthe enclosure 2, all the liquid which has risen in the feeding conduit 4 is forced into the bottle 3. This liquid is retained in the bottle.
  • the feeding conduit is then opened and the bottle is brought to atmospheric pressure.
  • the container 20 is lifted, the carriage 22 is moved under the container 20, which is lowered on its lid 21.
  • the operator fastens the latter by means of two bolts.
  • the sample taking operation is finished. The situation is then the same as at the beginning and the operation may be repeated by adapting a new sample bottle.
  • the shut on? valve 18 is closed and the same push button of the electric panel, which has been used to eifect filling, is depressed; the liquid of bottle 3 is then sucked into the enclosure; after having closed the vacuum valve 10 and opened the atmospheric valve 11 it is suflicient to open the shut oif valve 18 to obtain flowing of the drained liquid into the reserve 1. There is only left in the bottle 3 a drop of liquid due to the projecting of the needle 5. If during filling the contact between liquid and feeding conduit 4 does not function normally, the liquid arriving in contact with the lower end of the high level probe 7 causes suppression of the vacuum and return of the enclosure 2 to atmospheric pressure.
  • FIGURE 2 shows relays 25, 26 and 27, two push buttons start '28 and stop 29 and the terminals A and B. There are shown also the windings 12 and 13 shown less schematically than in FIGURE 1, and the switches 14 and 15. I
  • Control of the electro pneumatic motor system from the electric panel is effected in the following manner: the sta push button 28 energizes relay 25 which through the intermediary of winding 13 which is thus supplied with current, controls closing of the atmospheric valve 11.
  • the switch 15 closes and energizes relay '26 which by the intermediary of winding 12 which is supplied with current, controls opening of the vacuum valve 10. Opening of the latter valve causes closing of the switch 14.
  • the relay 27 is energized and opens the supply to relay 25 which has the elfect of closing the vacuum valve 10, through the intermediary of the winding 12 which is no longer supplied with current.
  • the switch 14 which is closed, keeps winding 13 supplied, and thus keeps the atmospheric valve 11 shut.
  • the switch 14 opens and cuts current supply of the winding 13, and the atmospheric valve 11 opens; the beginning of the opening movement of the latter valve eifects opening of the switch 15 and de-energizes relay 26.
  • the opening of contact AB due to the movement of the solution eifects d e-energizing of relay 27. All the elements of the control panel have thus returned to their initial condition.
  • stop push button 29 has the same result as energization of the relay 27, namely suppression of the vacuum and communication of the enclosure 2 with the atmosphere.
  • the electric circuit is 'fed under 24 volts.
  • the electric panel is remote from the sample taking device.
  • a sample bottle for taking samples of active solutions
  • a conduit feeding said bottle, means for placing said solution under vacuum
  • single action control means for said vacuum means for placing said solution under vacuum
  • electro-pneumatic motor system for controlling the vacuum means
  • a liquid switch actuated by contact between the active solution and said feeding conduit in said system
  • said vacuum means causing said solution to contact and enter said feeding conduit
  • a vacuum valve and an atmospheric valve in said system means for closing'said vacuum valve actuated by contact between the solution and said conduit
  • an external lead enclosure for the device said feeding conduit passing through said enclosure, and a lead container for said bottle, said bottle being mounted on the end of said feeding conduit during the taking of a sample, said enclosure and said container forming a protective assembly.
  • a lead container for said bottle, a removable lid for said container, and means for mounting said bottle on said feeding conduit including a carriage supporting said container, said lid being removed from said container when said bottle is mounted on said feeding conduit for the filling of said bottle, said lidbeing replaced on said container after filling of said bottle.
  • a security systern operative on malfunction of the device including means for breaking the vacuum and for placing the solution under atmospheric pressure to return the system to its initial condition and electrically actuated control means for said last named means including a second electric contact engaged by the solution when the contact between the solution and said feeding conduit is inoperative and a manually actuated electric switch.

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  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Hydrology & Water Resources (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
US836090A 1958-08-26 1959-08-26 Automatic device for taking samples of active solutions Expired - Lifetime US2999738A (en)

Applications Claiming Priority (1)

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FR773149 1958-08-26

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US2999738A true US2999738A (en) 1961-09-12

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US (1) US2999738A (enrdf_load_html_response)
BE (1) BE581724A (enrdf_load_html_response)
CH (1) CH362770A (enrdf_load_html_response)
FR (1) FR1211596A (enrdf_load_html_response)
GB (1) GB869249A (enrdf_load_html_response)
LU (1) LU37558A1 (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739202A1 (de) * 1977-07-13 1979-01-25 Bbc Brown Boveri & Cie Vorrichtung zur entnahme von proben aus einer fluessigkeitsdurchstroemten leitung
US20040182180A1 (en) * 2001-02-07 2004-09-23 Masahiro Chida Apparatus and method for extracting volatile constituents
CN113945417A (zh) * 2021-10-11 2022-01-18 河南牧业经济学院 用于奶牛饲料检测的智能采样装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2347204C1 (ru) * 2007-05-18 2009-02-20 Открытое акционерное общество "Всероссийский научно-исследовательский институт по эксплуатации атомных электростанций" (ВНИИАЭС) Пробоотборник жидких радиоактивных отходов из емкостей хранения на аэс

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624656A (en) * 1946-03-28 1953-01-06 Harry C Andrews Remote control pipetting unit
US2718459A (en) * 1948-11-22 1955-09-20 Miles C Leverett Remote control apparatus for transferring fluids

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624656A (en) * 1946-03-28 1953-01-06 Harry C Andrews Remote control pipetting unit
US2718459A (en) * 1948-11-22 1955-09-20 Miles C Leverett Remote control apparatus for transferring fluids

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739202A1 (de) * 1977-07-13 1979-01-25 Bbc Brown Boveri & Cie Vorrichtung zur entnahme von proben aus einer fluessigkeitsdurchstroemten leitung
US20040182180A1 (en) * 2001-02-07 2004-09-23 Masahiro Chida Apparatus and method for extracting volatile constituents
US7082849B2 (en) * 2001-02-07 2006-08-01 Japan Tobacco Inc. Apparatus and method for extracting volatile constituents
CN113945417A (zh) * 2021-10-11 2022-01-18 河南牧业经济学院 用于奶牛饲料检测的智能采样装置
CN113945417B (zh) * 2021-10-11 2024-01-19 河南牧业经济学院 用于奶牛饲料检测的智能采样装置

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Publication number Publication date
CH362770A (fr) 1962-06-30
GB869249A (en) 1961-05-31
FR1211596A (fr) 1960-03-17
LU37558A1 (enrdf_load_html_response) 1959-10-19
BE581724A (fr) 1959-12-01

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