DE2514413A1 - Pressurised pipeline sampling pipe - has sample vessel with moving piston and magnetic valves for pressure reduction - Google Patents

Pressurised pipeline sampling pipe - has sample vessel with moving piston and magnetic valves for pressure reduction

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Publication number
DE2514413A1
DE2514413A1 DE19752514413 DE2514413A DE2514413A1 DE 2514413 A1 DE2514413 A1 DE 2514413A1 DE 19752514413 DE19752514413 DE 19752514413 DE 2514413 A DE2514413 A DE 2514413A DE 2514413 A1 DE2514413 A1 DE 2514413A1
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Germany
Prior art keywords
sampling
sample
line
delivery line
piston
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.)
Pending
Application number
DE19752514413
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German (de)
Inventor
Dieter Holste
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HOLSTE
Original Assignee
HOLSTE
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 HOLSTE filed Critical HOLSTE
Priority to DE19752514413 priority Critical patent/DE2514413A1/en
Publication of DE2514413A1 publication Critical patent/DE2514413A1/en
Pending 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
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
    • G01N1/2042—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a piston actuated by the pressure of the liquid to be sampled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line

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

Abstract

The device is for automatic sampling from a pressurised feed pipe line. It has a cylindrical sample collection venel (15) attached to the pipeline (8) by a sampling pipe (4) at its front side, within which a sealed piston (9) is mounted. The sample venel (1) is filled with water moving the piston (9) up to the sample inlet and the water input pipe (10) is closed and the cutlet-off slide (5) of the sampling pipe (4) is opened to take up the pressure within the feed pipe (8). This pressure is released at intervals by means of a magnetic valve, allowing passage of sample to the collector vessel. A pressure equaliser (13) in front of the valve (14) is used to reduce the pressure difference developed in the feed pipe (8) during sampling.

Description

Dieter olste 4300 Essen, Lunerkamp 4 iians-Josef Kästner 4300 Essen, Byfangerstr. 140 Vorrichtung zur Probenallrile aus Dru<kle 1 t.ungeii Die Erfindung betrifft eine Vorrichtung zur automatischen Entnahme von Proben aus einer unter Druck stehenden Förderleitung.Dieter Olste 4300 Essen, Lunerkamp 4 iians-Josef Kästner 4300 Essen, Byfangerstr. 140 Apparatus for sampling from pressure 1 t.uneii The invention relates to a device for automatically taking samples from an under Pressurized delivery line.

Der bei der Abwasserreinigung anfallende Schlamm wird mittels Pumpen über Druckrohrleitungen in F'aulbehälter gefördert, in denen er unter Luftabschluß ausfault. Zur verfahrenstechnischen Uberwachung dieses Faulprozesses ist es notwendig, die täglich eingebrachten Feststoff- bzw. unvermeidbaren Schadstoffmengen zu erfassen. Wegen seiner stark unterschiedlichen Konsistenz innerhalb einer längeren Förderperiode kann anhand nur einer Stichprobe kein reprasentativer Wert, beispielsweise des Feststoffgehaltes, gewunden werden. Vielmehr ist es erforderlich, während der Förderperiode eine größere Anzahl von Proben mengenproportional zu entnehmen und aus der Slrnmelprobe den Feststoffgehalt zu bestimmen, der,mit der gemessenen Fördermenge multipliziert, die Feststofffracht ergibt.The sludge resulting from wastewater treatment is pumped promoted via pressure pipelines in F'aul containers, in which he is sealed off from air faults. For procedural monitoring of this rotting process, it is necessary to to record the daily introduced solid or unavoidable pollutant quantities. Because of its very different consistency within a longer funding period no representative value, for example the solids content, to be twisted. Rather, it is necessary to have a larger one during the funding period Number of samples to be taken in proportion to the quantity and the solids content from the membrane sample to determine which, multiplied by the measured flow rate, the solids load results.

Während in anderen Bereichen als der Abwassertechnik Probenahmegeräte verschiedenster Art bekannt sind (z.B. DAS 1 215 962 u.While sampling devices in areas other than sewage technology of various kinds are known (e.g. DAS 1 215 962 u.

1 222 715), hat man sich bei der Probenahme aus Schlammförderleitungen bisher damit begnügt, mehrmals während einer Förderperiode von Hand aus einem an der Förderleitung angebrachten Entnahmestutzen Proben in einem Gefäß zu sammeln und aus der Mischprobe die mittlere Fest- bzw. Schadstoffkonzentration zu bestimmen.1 222 715), when sampling from sludge delivery lines So far this has been content to start by hand several times during a funding period The extraction nozzle attached to the delivery line collect samples in a vessel and to determine the mean solids or pollutant concentration from the composite sample.

Der Erfindung liegt die Aufgabe zugrunde, die bisherige unsachgemäße Probenahme zu verbessern und durch Automation zu rationalisieren. Der in der Förderleitung herrschende Druck wird dazu genutzt, durch eine absperrbare Entnahmeleitung in einem geschlossenen zylindrischen Probensammelgefäß einen Kolben in der Längsachse zu verschieben und im freiwerdenden Raum Fördermedium aufzunehmen, indem eine vorher auf der anderen Kolbenseite eingebrachte Leitungswasserfüllung in Intervallen durch zeitgleiches offenen eines Magnetventiles abgelassen wird. Der Steuerimpul fiir das Magnetventil kann sowohl zeit- als auch mengenproportional erfolgen.The invention is based on the problem of the previous improper Improve sampling and streamline it through automation. The one in the delivery line The prevailing pressure is used through a shut-off extraction line in one closed cylindrical sample collection vessel to a piston in the longitudinal axis move and take up the pumping medium in the space that is freed up by a beforehand tap water filling introduced on the other side of the piston at intervals simultaneous open a solenoid valve is drained. The control impulse for the solenoid valve can be done in proportion to both time and volume.

Der Vorteil der Vorrichtung besteht darin, daß der bei Probenallmebeginn ganz zu öffnende Absperrschieber in der Entnahmeleitung während der Dauer der Förderperiode in dieser Stellung verbleibt, so daß keine Verstopfungen durch Sperrstoffe möglich sind. Das aus dem Probensammelgefäß verdrängte Wasser wird in einem Gefäß aufgefangen und mit einer geeigneten Pumpe zum Ausfahren der Sammelprobe bzw. Füllen des Probensammelgefäßes wiederverwendet. Die im Verlauf einer Förderperiode auftretenden Druckunterschiede werden durch einen vor dem Magnetventil angeordneten Druckminderer ausgeglichen. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung im Längsschnitt dargestellt und wird im folgenden näher beschrieben: Das zylindrische Probensammelgefäß (1) ist an beiden Enden durch die Stirnwände (2 u. 5) verschlossen. Die Entnahmeleitung (4) mit Absperrschieber (5), Auslaßstutzen (6) und Auslaßschieber (7) verbindet das Probensammelgefäß (1) mit der Förderleitung (8), aus der die Proben entnommen werden sollen. Im Probensammelgefäß (1) ist - in Richtung der Längsachse frei beweglich - ein in geeigneter Weise abgedichteter Kolben (9) angeordnet. An der Stirnwand ()) befinden sich die Wasserzuleitung (lo) mit Absperrventil (11) und die Entleerungsleitung (12) mit Druckminderer (15) und Magnetventil (14). Durch die Entleerungsleitung (12) gelangt das aus dem Probensammelgefäß (1) abgelassene Wasser in den Auffangbehälter (15) aus dem es mittels Pumpe (16) wieder in die Wasserzuleitung (lo) zurückgefördert werden kann.The advantage of the device is that at the beginning of the sample Fully openable gate valves in the extraction line for the duration of the funding period Remains in this position so that no blockages due to bulky materials are possible are. The water displaced from the sample collection vessel is collected in a vessel and with a suitable pump for withdrawing the collective sample or filling the sample collection vessel reused. The pressure differences occurring in the course of a funding period are compensated by a pressure reducer located in front of the solenoid valve. An embodiment of the invention is shown in the drawing in longitudinal section and is described in more detail below: The cylindrical sample collection vessel (1) is closed at both ends by the end walls (2 and 5). The sampling line (4) connects to the gate valve (5), the outlet nozzle (6) and the outlet valve (7) the sample collection vessel (1) with the delivery line (8) from which the samples are taken should be. In the sample collection vessel (1) it can be moved freely in the direction of the longitudinal axis - A suitably sealed piston (9) is arranged. On the front wall ()) are the water supply line (lo) with shut-off valve (11) and the drainage line (12) with pressure reducer (15) and solenoid valve (14). Through the drainage line (12) the water drained from the sample collection vessel (1) reaches the collecting container (15) from which it is fed back into the water supply line (lo) by means of a pump (16) can be.

Die Probenahmevorrichtung wird in folgender Weise betrieben. Aus dem Auffangbehälter (15) wird mit der Pumpe (16) Wasser in das Probensammelgefäß (1) gefördert und dadurch der Kolben (9) bis zur Stirnwand (2) bewegt. Dabei ist der Absperrschieber (5) geschlossen bzw. Auslaßschieber (7) geöffnet. Nachdem Ausla<J ehieher (7) und Absperrventil (11) geschlossen sind, wird der Absperrichieber (5) geöffnet, so daß der in der Förderleitung (8) herrschende hydrostatische bzw. manometrische Druck auf den Kolben (9) einwirkt, der jedoch durch die Wasserfüllung in seiner Ausgangslage gehalten wird. Die Probenahme selbst erfolgt dadurch, daß mit Inbetriebnahme der Förderpumpe in an sich bekannter Weise ein in der Förderleitung (8) angeordnetes, beispielsweise induktives, Mengenmeßgerät mengenproportionale Steuerimpulse an das Magnetventil (14) abgibt, wodurch dieses jeweils zeitgleich geöffnet wird und infolge des auf den Kolben (9) ausgeUbten Druckes eine bestimmte Wassermenge abläßt, so daß auf der anderen Kolbenseite eine entsprechende Probenmenge in das Prohensammelgefäß gelangt.The sampling device is operated in the following manner. From the The collecting container (15) is pumped (16) with water into the sample collection vessel (1) promoted and thereby the piston (9) moves to the front wall (2). Here is the Gate valve (5) closed or the outlet slide (7) is open. After the outlet (7) and the shut-off valve (11) are closed, the Shut-off valve (5) open so that the hydrostatic prevailing in the delivery line (8) or manometric pressure acts on the piston (9), which, however, is caused by the water filling is kept in its original position. The sampling itself takes place in that with the start-up of the feed pump in a manner known per se in the feed line (8) arranged, for example inductive, quantity measuring device proportional to the quantity Outputs control pulses to the solenoid valve (14), which causes this to occur at the same time is opened and as a result of the pressure exerted on the piston (9) a certain The amount of water drains so that a corresponding amount of sample is available on the other side of the flask gets into the sample collection vessel.

Dabei ist es vorteilhaft, daß der Absperrschieber (5) ganz geöffnet ist und somit nicht verstopften kann. Die Öffnungszeiten des Magnetventiles (14) werden in Abhängigkeit von der zu erwartenden Fördermenge festgelegt, so daß innerhalb einer Förderperiode das Probenahmegefäß (1) nicht ganz gefüllt wird. Nach Beendigung der Förderperiode wird, wie bereits beschrieben, der Absperrschieber (5) geschlossen und das Prot)engut mit dem Druck der Wasserzuleitung (lo) durch den A-uslaßstutzen (6) entleert.It is advantageous that the gate valve (5) is fully open and therefore cannot become clogged. The opening times of the solenoid valve (14) are determined depending on the expected delivery rate, so that within the sampling vessel (1) is not completely filled during a funding period. After completion As already described, the gate valve (5) is closed during the funding period and the prot) engages with the pressure of the water supply line (lo) through the outlet nozzle (6) emptied.

Claims (2)

Patentansprtiche Patent claims f X zur zur zur automatischen Entnahme von Proben aus einer unter Druck stehenden Förderleitung, bestehend aus einem zylindrischen Probensammelgefäß (1), welches an einer Stirnseite (2) durch eine absperrbare Entnahmeleitung (4) an die Förderleitung (8) angeschlossen und in dessen Innenraum, in der Längsachse frei beweglicht ein in geeigneter Weise abgedichteter Kolben (9) angeordnet ist, dadurch gekennzeichnet, daß die vor der Probenahme in das Probensammelgefäß (1) eingebrachte Wasserfüllung den Kolben (9) bis zur Probeneinlaufseite bewegt und nach Schließen der VJasserzuleitung (lo) und Öffnen des Absperrschiebers (5) der Entnahmeleitung (4) den in der Förderleitung (8) herrschenden Druck annimmt, mit dem sie während der Probenahmezeit aus einem zeitabhängig oder entsprechend der Durchflußmenge in der Förderleitung gesteuerten Magnetventil (14) in Intervallen wieder abgelassen wird und dadurch auf der Probenahmeseite entsprechende Probemengen eintreten läßt, wobei innerhalb eines Probenahmezeitraumes in der Förderleitung auftretende Druckunterschiede durch einen vor dem Magnetventil (11t) angeordneten an sich bekannten Druckminderer (1)) ausgeglichen werden.f X for the automatic removal of samples from an under Pressurized delivery line, consisting of a cylindrical sample collection vessel (1), which is connected to one end (2) by a lockable extraction line (4) connected to the delivery line (8) and in its interior, in the longitudinal axis a piston (9), which is suitably sealed, is arranged to move freely, characterized in that the prior to sampling in the sample collection vessel (1) introduced water filling moves the piston (9) to the sample inlet side and after closing the water supply line (lo) and opening the gate valve (5) of the Withdrawal line (4) assumes the pressure prevailing in the delivery line (8), with which they take during the sampling period from a time-dependent or according to the Flow rate in the delivery line controlled solenoid valve (14) at intervals is drained again and thereby corresponding sample quantities on the sampling side can occur, with within a sampling period in the delivery line occurring pressure differences through a arranged in front of the solenoid valve (11t) known pressure reducer (1)) are compensated. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die aus dem Magnetventil (14) abgelassene WasserfUllung.in einem Behälter (15) aufgefangen und nach Beendiglmg der Probenahme zum Ausfahren der Sammelprobe bzw. erneuten Füllen des Probensammelgefäßes wiederverwendet wird. 2. Apparatus according to claim 1, characterized in that the from The water filling drained off the solenoid valve (14) is collected in a container (15) and after completion of the sampling, to take out the collective sample or to fill it again of the sample collection vessel is reused.
DE19752514413 1975-04-02 1975-04-02 Pressurised pipeline sampling pipe - has sample vessel with moving piston and magnetic valves for pressure reduction Pending DE2514413A1 (en)

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Application Number Priority Date Filing Date Title
DE19752514413 DE2514413A1 (en) 1975-04-02 1975-04-02 Pressurised pipeline sampling pipe - has sample vessel with moving piston and magnetic valves for pressure reduction

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053322A1 (en) * 1980-11-24 1982-06-09 BEB Gewerkschaften Brigitta und Elwerath Betriebsführungsgesellschaft mbH Device for taking representative samples of crude oil
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
EP0405475A2 (en) * 1989-06-27 1991-01-02 Sartorius Ag Liquids sampling apparatus which can be connected to a processing or filling conduit
DE4010371A1 (en) * 1990-03-30 1991-10-02 Friedrich Schlemm Gas line probe removal device for gas supply - has line connected cylinder with control piston of gas permeable material movable regulated distance
DE4030729A1 (en) * 1990-09-28 1992-04-02 Tuchenhagen Otto Gmbh METHOD AND DEVICE FOR SAMPLING AND SAMPLE HANDLING BY MEANS OF A SAMPLE BOTTLE
FR2792071A1 (en) * 1999-04-07 2000-10-13 Elf Exploration Prod Mechanism for taking samples from liquid flowing in conduit, comprises Pitot tube in conduit, two cylinders with pistons which operate hydraulic switch and separating liquid link between cylinders
DE10061725A1 (en) * 2000-12-12 2002-05-08 Alfred Schoepf Sampling unit for sewer water has compressed air drive avoids explosion risk
WO2004038281A1 (en) * 2002-10-24 2004-05-06 AMTEC - Anwendungszentrum für Mikrotechnologien Chemnitz GmbH Method and device for the removal of liquid samples from pressurised containers
WO2006018247A1 (en) * 2004-08-13 2006-02-23 Hte Aktiengesellschaft The High Throughput Experimentation Company Device for controlled removal of fluid samples from pressurized containers
EP2078947A3 (en) * 2008-01-14 2011-09-14 ibk Bioanalytik GmbH Measuring device and method for automatic measurement of characteristics of organic slime in a biogas assembly
DE102016007094B3 (en) * 2016-06-10 2016-12-22 Qfood Gmbh Sampling device for taking beverage samples from a beverage line containing a pressurized gaseous beverage
CN107589209A (en) * 2017-09-12 2018-01-16 国网福建省电力有限公司 A kind of oil chromatography tests auto injection method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053322A1 (en) * 1980-11-24 1982-06-09 BEB Gewerkschaften Brigitta und Elwerath Betriebsführungsgesellschaft mbH Device for taking representative samples of crude oil
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
EP0405475A2 (en) * 1989-06-27 1991-01-02 Sartorius Ag Liquids sampling apparatus which can be connected to a processing or filling conduit
EP0405475A3 (en) * 1989-06-27 1991-09-11 Sartorius Ag Liquids sampling apparatus which can be connected to a processing or filling conduit
DE4010371A1 (en) * 1990-03-30 1991-10-02 Friedrich Schlemm Gas line probe removal device for gas supply - has line connected cylinder with control piston of gas permeable material movable regulated distance
DE4030729A1 (en) * 1990-09-28 1992-04-02 Tuchenhagen Otto Gmbh METHOD AND DEVICE FOR SAMPLING AND SAMPLE HANDLING BY MEANS OF A SAMPLE BOTTLE
FR2792071A1 (en) * 1999-04-07 2000-10-13 Elf Exploration Prod Mechanism for taking samples from liquid flowing in conduit, comprises Pitot tube in conduit, two cylinders with pistons which operate hydraulic switch and separating liquid link between cylinders
DE10061725A1 (en) * 2000-12-12 2002-05-08 Alfred Schoepf Sampling unit for sewer water has compressed air drive avoids explosion risk
DE10061725B4 (en) * 2000-12-12 2009-05-14 Schöpf, Alfred Device for taking samples
WO2004038281A1 (en) * 2002-10-24 2004-05-06 AMTEC - Anwendungszentrum für Mikrotechnologien Chemnitz GmbH Method and device for the removal of liquid samples from pressurised containers
DE10249771A1 (en) * 2002-10-24 2004-05-13 AMTEC-Anwendungszentrum für Mikrotechnologien Chemnitz GmbH Method and device for taking liquid samples from one or more pressure vessels
WO2006018247A1 (en) * 2004-08-13 2006-02-23 Hte Aktiengesellschaft The High Throughput Experimentation Company Device for controlled removal of fluid samples from pressurized containers
EP2078947A3 (en) * 2008-01-14 2011-09-14 ibk Bioanalytik GmbH Measuring device and method for automatic measurement of characteristics of organic slime in a biogas assembly
DE102016007094B3 (en) * 2016-06-10 2016-12-22 Qfood Gmbh Sampling device for taking beverage samples from a beverage line containing a pressurized gaseous beverage
CN107589209A (en) * 2017-09-12 2018-01-16 国网福建省电力有限公司 A kind of oil chromatography tests auto injection method

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