DE19530709C2 - Probe for taking samples as a solid or liquid from boilers - Google Patents

Probe for taking samples as a solid or liquid from boilers

Info

Publication number
DE19530709C2
DE19530709C2 DE19530709A DE19530709A DE19530709C2 DE 19530709 C2 DE19530709 C2 DE 19530709C2 DE 19530709 A DE19530709 A DE 19530709A DE 19530709 A DE19530709 A DE 19530709A DE 19530709 C2 DE19530709 C2 DE 19530709C2
Authority
DE
Germany
Prior art keywords
probe
liquid
solid
sample container
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.)
Expired - Fee Related
Application number
DE19530709A
Other languages
German (de)
Other versions
DE19530709A1 (en
Inventor
Rolf Dierbach
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19530709A priority Critical patent/DE19530709C2/en
Publication of DE19530709A1 publication Critical patent/DE19530709A1/en
Application granted granted Critical
Publication of DE19530709C2 publication Critical patent/DE19530709C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/08—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type
    • G01F11/086—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type using an auxiliary pressure to cooperate with the diaphragm or bellows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/08—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type
    • G01F11/088—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type using a deformable conduit-like element
    • 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
    • G01N1/12—Dippers; Dredgers
    • 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
    • G01N2001/1006—Dispersed solids
    • G01N2001/1012—Suspensions
    • G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge
    • 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
    • G01N2001/1031—Sampling from special places
    • G01N2001/1037—Sampling from special places from an enclosure (hazardous waste, radioactive)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G01N2035/1025—Fluid level sensing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
    • G01N9/28—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences by measuring the blowing pressure of gas bubbles escaping from nozzles at different depths in a liquid

Landscapes

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

Description

Aus Kesseln, in denen aus verschiedenen Stoffen durch Rühren unter Druck und Temperatur ein neues Produkt erstellt wird, sind in gewissen Phasen des Prozesses Proben zu entnehmen.From kettles, in which various substances enter by stirring under pressure and temperature new product is created, samples must be taken in certain phases of the process.

Zu Anfang ist der Kessel mit einer über die gesamte Füllhöhe gleichmäßigen Mischung aus Feststoffen und Flüssigkeit gefüllt. Im Verlauf des Prozesses bildet sich langsam eine festere Phase, bis sich am Ende des Prozesses im unteren Teil eine teigartige Masse gebildet hat. Genau an der sich bildenden Trennschicht zwischen der Masse und der sich darüber befindenden Flüssigkeit sollen Proben aus der festen Schicht entnommen werden.At the beginning, the boiler is made with a mixture that is uniform over the entire filling level Solids and liquid filled. As the process progresses, a firmer phase slowly forms, until a dough-like mass has formed in the lower part at the end of the process. Exactly at the separating layer forming between the mass and the liquid located above it Samples are taken from the solid layer.

Bisher werden Proben mit einem Schöpfbecher entnommen, der an einer langen Stange befestigt ist und der von Hand durch eine Öffnung oben auf dem Kessel bis auf die feste Schicht abgesenkt wird. Diese Probenahme verläuft nicht zufriedenstellend, da das Füllen des Schöpfbechers problematisch ist und der offene Schöpfbecher beim Hochziehen die flüssige Phase durchlaufen muß. Ein großer Nachteil ist die äußere Verschmutzung des Behälters, da die Flüssigkeit krebserregend ist. Weitere Probleme sind das Verschließen des Probenbehälters, nachdem er mit der Probe gefüllt ist sowie das Entleeren.So far, samples have been taken with a beaker attached to a long rod and which is lowered by hand through an opening on top of the boiler to the solid layer. This sampling is not satisfactory because the filling of the beaker is problematic is and the open scoop must pass through the liquid phase when pulled up. A large The disadvantage is the external contamination of the container, since the liquid is carcinogenic. Other problems include closing the sample container after it has been filled with the sample as well as emptying.

Ein bekanntes Gerät (US 5 303 600) kommt beim Absenken in die Flüssigkeit mit dieser auf der gesamten Außenseite in Berührung, was zur Verschmutzung führt. Es ist nicht möglich, auf der Außenseite einen Unterdruck wirken zu lassen, wodurch ein Saugeffekt erzeugt werden kann, der die Aufnahme von pastenartigen Proben (z. B. Schlamm) gestattet. Die vorhandenen Absperrorgane können durch evtl. vorhandene Fremdkörper in der Probe (z. B. durch Steine oder Späne) u. U. blockiert werden und dadurch evtl. nicht vollkommen schließen.A known device (US 5,303,600) comes into the liquid with this on the lowering entire outside in contact, which leads to contamination. It is not possible on the Let a negative pressure act on the outside, which can create a suction effect that the Acceptance of paste-like samples (e.g. sludge) permitted. The existing shut-off devices can be caused by foreign bodies in the sample (e.g. stones or chips) and the like. U. blocked and may not close completely as a result.

Ein anderes bekanntes Gerät DE 32 35 946 A1 kommt ebenfalls beim Eintauchen in die Flüssigkeit vollkommen mit dieser in Berührung und besitzt ebenfalls eine Verschluß- und Bewegungsmechanik, die anfällig gegen Verschmutzung ist.Another known device DE 32 35 946 A1 also comes when immersed in the liquid completely in contact with it and also has a locking and movement mechanism, which is susceptible to pollution.

Ein weiteres Gerät DE 34 44 363 A1 arbeitet als stationäre Pumpe und erlaubt nicht die Aufnahme der Probe in einen Behälter direkt an der Stelle der Probenahme. Auch die hier vorhandenen Absperrorgane werden durch feste/pastenartige Proben außer Funktion gesetzt.Another device DE 34 44 363 A1 works as a stationary pump and does not allow inclusion the sample in a container directly at the point of sampling. Even the ones here Shut-off devices are deactivated by solid / paste-like samples.

Ein Gerät gemäß DE 78 29 458 U1 besitzt ebenfalls ein Absperrorgan in Form eines Rückschlagventils, das bei Aufnahme von festen/pastenartigen Proben verschmutzt und evtl. blockiert wird, was das Entleeren des Probengefäßes problematisch macht. Auch hier wird die Probe nicht direkt am Ort der Aufnahme in den Proben-Transportbehälter abgefüllt.A device according to DE 78 29 458 U1 also has a shut-off element in the form of a Check valve, which becomes dirty when solid / paste-like samples are taken up and is blocked, which makes emptying the sample vessel problematic. Again, the rehearsal not filled into the sample transport container directly at the place of reception.

Mit allen vier Geräten kann man keine festen/pastenartigen Proben direkt an der Stelle der Probenaufnahme in einen Probenbehälter aufnehmen. Da die Behälter außen verschmutzt sind, können sie nicht als Transportbehälter verwendet werden.With all four devices, no solid / paste-like samples can be placed directly at the location of the Place the sample holder in a sample container. Since the containers are dirty on the outside, they cannot be used as transport containers.

Soweit bekannt, gibt es zum Entnehmen von Proben als Feststoff aus Kesseln bisher keine zufriedenstellende Lösung, da der Einsatz z. B. von Greifern oder anderen Vorrichtungen an dem Problem des Befüllens, der Verschmutzung und speziell dem Umfüllen in einen Probenbehälter scheitert.As far as is known, there have been so far solid samples from kettles not a satisfactory solution, because the use z. B. from grippers or other devices the problem of filling, contamination and especially transferring to a sample container fails.

Es ist daher die Aufgabe der vorliegenden Erfindung, eine Probenahmesonde anzugeben, welche den Zustand der Probe beim Durchfahren von anderen Schichten (flüssig oder fest) nicht beeinflußt und ein Umfüllen der Probe in einen Transportbehälter vermeidet.It is therefore the object of the present invention to provide a sampling probe which Condition of the sample when passing through other layers (liquid or solid) not affected and avoid transferring the sample into a transport container.

Diese Aufgabe wird durch eine Sonde mit den Merkmalen des Patentanspruchs gelöst.This object is achieved by a probe with the features of the patent claim.

Bei der Probenahme wird ein speziell entwickelter Probenbehälter (Fig. 1) mit einer Sonde (Fig. 3) direkt in die jeweils gewünschte Tiefe abgesenkt.When sampling, a specially developed sample container ( Fig. 1) with a probe ( Fig. 3) is lowered directly to the desired depth.

Die Sonde beinhaltet einen Probenbehälter (Fig. 1), der nach dem Prinzip einer Tube funktioniert. Der Probenbehälter, in Form eines Zylinders , besitzt eine flexible Außenwand 1.1 und kann dadurch vollständig, wie eine Tube, flachgedrückt werden (Fig. 2).The probe contains a sample container ( Fig. 1) that works on the principle of a tube. The sample container, in the form of a cylinder, has a flexible outer wall 1.1 and can therefore be flattened completely, like a tube ( FIG. 2).

Die Sonde wird zusammen mit dem Probenbehälter im Kessel abgesenkt, wobei in der Sonde eine Druckkammer 3.1, für das vollständige Zusammenpressen des Probenbehälters auf der gesamten Länge, integriert ist.The probe is lowered together with the sample container in the boiler, a pressure chamber 3.1 being integrated in the probe for the complete compression of the sample container over the entire length.

Aufgrund eines physikalischen Prinzips kann auf eine Verschlußmechanik verzichtet werden. Das physiklische Prinzip beruht darauf, daß aus Behältern, die voll gefüllt sind und deren Öffnung kleiner als 10 mm ist, keine Flüssigkeit ausläuft, auch wenn man den Behälter senkrecht, mit der Öffnung nach unten, hält.Due to a physical principle, a locking mechanism can be dispensed with. The The physical principle is based on the fact that containers that are full and have smaller openings than 10 mm, no liquid leaks, even if the container is vertical, with the opening down, stops.

Zum Zwecke der Probenahme wird der Probenbehälter in die Druckkammer 3.1 eingeschraubt und durch Erhöhung des Druckes in der Druckkammer 3.1 (Fig. 3) flachgedrückt. Hierdurch entweicht die Luft aus dem Probenbehälter, wodurch später das vollständige Befüllen des Probenbehälters möglich wird.For the purpose of sampling, the sample container is screwed into the pressure chamber 3.1 and flattened out by increasing the pressure in the pressure chamber 3.1 ( FIG. 3). As a result, the air escapes from the sample container, which later makes it possible to completely fill the sample container.

Die Sonde wird in den Kessel abgesenkt.The probe is lowered into the boiler.

Bei Erreichen der festen Phase wird der Gasdruck in der Druckkammer 3.1 abgesenkt und der Probenbehälter kann sich bei weiterem Absenken der Sonde mit der Probe füllen.When the solid phase is reached, the gas pressure in the pressure chamber 3.1 is lowered and the sample container can fill with the sample when the probe is lowered further.

Nachdem die Sonde aus dem Kessel hochgezogen wurde, kann der Probenbehälter mit einer Kappe 1.2 verschlossen und der gefüllte Probenbehälter dann aus der Druckkammer 3.1 entnommen werden. Der Probenbehälter kann problemlos entleert werden, indem die Tube von Hanf oder durch Luftdruck von außen zusammengedrückt wird.After the probe has been pulled up from the kettle, the sample container can be closed with a cap 1.2 and the filled sample container can then be removed from the pressure chamber 3.1 . The sample container can be emptied easily by squeezing the tube of hemp or by external air pressure.

Claims (1)

Sonde zum Entnehmen von Proben als Feststoff oder Flüssigkeit aus Kesseln, bestehend aus einer in vorbestimmter Tiefe absenkbaren Druckkammer (3.1) mit einem Anschluß zur Luftzufuhr und mit einer Öffnung, in welche ein Probenbehälter einschraubbar ist, wobei der Probenbehälter eine geschlossene, tubenähnliche Form mit flexibler Außenwandung (1.1) aufweist und durch Erhöhung des Druckes in der Druckkammer (3.1) vollständig zusammendrückbar ist.Probe for taking samples as a solid or liquid from boilers, consisting of a pressure chamber ( 3.1 ) that can be lowered to a predetermined depth with a connection for air supply and with an opening into which a sample container can be screwed, the sample container being a closed, tube-like shape with flexible Has outer wall ( 1.1 ) and can be completely compressed by increasing the pressure in the pressure chamber ( 3.1 ).
DE19530709A 1994-08-25 1995-08-21 Probe for taking samples as a solid or liquid from boilers Expired - Fee Related DE19530709C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19530709A DE19530709C2 (en) 1994-08-25 1995-08-21 Probe for taking samples as a solid or liquid from boilers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9413697U DE9413697U1 (en) 1994-08-25 1994-08-25 Device for taking samples as a solid or liquid from boilers
DE19530709A DE19530709C2 (en) 1994-08-25 1995-08-21 Probe for taking samples as a solid or liquid from boilers

Publications (2)

Publication Number Publication Date
DE19530709A1 DE19530709A1 (en) 1996-02-29
DE19530709C2 true DE19530709C2 (en) 1996-09-26

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
DE9413697U Expired - Lifetime DE9413697U1 (en) 1994-08-25 1994-08-25 Device for taking samples as a solid or liquid from boilers
DE19530709A Expired - Fee Related DE19530709C2 (en) 1994-08-25 1995-08-21 Probe for taking samples as a solid or liquid from boilers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE9413697U Expired - Lifetime DE9413697U1 (en) 1994-08-25 1994-08-25 Device for taking samples as a solid or liquid from boilers

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012531A1 (en) * 1996-09-16 1998-03-26 Hans Christian Jensen A method and sample extractor for the extraction of intact fluid samples

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7829458U1 (en) * 1979-05-17 Schwarzmaier, Guntram, Dr., 8021 Taufkirchen Device for taking water samples from a predetermined depth
DE1573116A1 (en) * 1966-04-01 1969-08-14 Vdo Schindling Device for measuring the liquid level in a container
DE2203174A1 (en) * 1972-01-24 1973-08-16 Sarstedt Kunststoff DEVICE FOR REMOVING, DISTRIBUTING AND STORING LIQUIDS
US3894438A (en) * 1973-07-27 1975-07-15 Coulter Electronics Pneumatic fluid level sensing and sampling system
ES452471A1 (en) * 1976-10-16 1977-11-16 Cesar Martin Roberto Method of measuring the content of tanks or cisteras with liquid fluid. (Machine-translation by Google Translate, not legally binding)
US4197746A (en) * 1978-11-15 1980-04-15 Hach Chemical Company Slurry pipet
DE3039475A1 (en) * 1980-10-18 1982-05-27 Eppendorf Gerätebau Netheler + Hinz GmbH, 2000 Hamburg Compressed air sensor - controls level of cannula removing measured amt. of liq. from container
SE423578B (en) * 1981-09-30 1982-05-10 Lars Brennstrom STERILE WATER REMOVER
DE3310032C2 (en) * 1983-03-19 1985-06-13 Dr. H. Tiefenbach Gmbh & Co, 4300 Essen Submersible siphon for taking liquid samples, especially water samples from waters of great depth
DE3444363A1 (en) * 1984-12-05 1986-06-12 Quantitative Environmental Decisions Corp., Ann Arbor, Mich. Device for taking liquid samples
DE3820924C2 (en) * 1988-06-21 1994-02-17 Neumann Peter Dipl Ing Soil sampling probe
DE3904173A1 (en) * 1989-02-11 1990-08-16 Prematechnik Ges Fuer Verfahre Arrangement for taking samples from a product medium flowing through a delivery conduit
DE4012625A1 (en) * 1990-04-20 1991-10-24 Mak Maschinenbau Krupp Water sample extractor for bore - has operating unit providing bidirectional optical data transfer for programming and sensor information
US5303600A (en) * 1990-06-04 1994-04-19 General Oceanics, Inc. Fluid sampling reservoir and method
IT1241013B (en) * 1990-12-07 1993-12-27 Carello Spa LAMP HOLDER DEVICE FOR VEHICLE PROJECTORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012531A1 (en) * 1996-09-16 1998-03-26 Hans Christian Jensen A method and sample extractor for the extraction of intact fluid samples

Also Published As

Publication number Publication date
DE9413697U1 (en) 1994-11-03
DE19530709A1 (en) 1996-02-29

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