EP0229970A1 - Method and apparatus for the operation of liquid flow machines - Google Patents

Method and apparatus for the operation of liquid flow machines Download PDF

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Publication number
EP0229970A1
EP0229970A1 EP86117072A EP86117072A EP0229970A1 EP 0229970 A1 EP0229970 A1 EP 0229970A1 EP 86117072 A EP86117072 A EP 86117072A EP 86117072 A EP86117072 A EP 86117072A EP 0229970 A1 EP0229970 A1 EP 0229970A1
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EP
European Patent Office
Prior art keywords
liquid
bodies
flow
macromolecular
liquid flow
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.)
Granted
Application number
EP86117072A
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German (de)
French (fr)
Other versions
EP0229970B1 (en
Inventor
Hans René Dipl.-Ing. Neubauer
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT86117072T priority Critical patent/ATE43698T1/en
Publication of EP0229970A1 publication Critical patent/EP0229970A1/en
Application granted granted Critical
Publication of EP0229970B1 publication Critical patent/EP0229970B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0391—Affecting flow by the addition of material or energy

Definitions

  • the invention relates to a method and device for operating liquid machines according to the preamble of patent claim 1.
  • the invention has for its object to achieve a better mode of operation without special design measures for all possible types and types of liquid flow machines, in which the delivered liquid flow can be increased significantly with reduced drive power and an increase in operating pressure, with a reduction in noise emissions of fluid flow machines can be achieved.
  • Such macromolecular substances can be polymers, in particular polyacrylamides, as well as surfactants or inorganic fibers, which are added as a liquid stock solution or in powder form to the liquid flow at the entrance to the machines in question, in an amount which is matched to the mass flow rate of the flowing liquid, the preferably continuous supply of said Friction reducer or flow accelerator for mass flow of the liquid flowing into the housing takes place.
  • the amount of friction reducers constantly supplied is relatively small in relation to the inflowing liquid and therefore the consumption of such bodies during the operating period is correspondingly small.
  • the operating method according to the invention is particularly suitable for liquid ring machines with paddle wheels driving the liquid ring in the housing, whereby in circular operation of such machines, in which the operating liquid is fed back to the machine from a liquid separator arranged behind the gas outlet and only a small loss of liquid is replaced by a supplied liquid needs to be, the operating fluid must only be provided with a correspondingly small amount of friction reducer to the extent of the replacement fluid.
  • a device for carrying out the method is indicated schematically in the drawing and explained below, a liquid flow machine being used in continuous operation.
  • the indicated liquid pump 1 is connected to an inflow line 2 and to an outflow line 3 for the operating liquid.
  • a supply container 5 for powdered or liquid dissolved friction reducers is connected to the inflow line 2 via a metering device 4.
  • the metering device 4 is, in turn, brought into dependence on a mass flow meter 6 arranged in the drain line 3, such that, depending on the amount of operating fluid flowing through the pump 1 per unit of time, the metering device 4 releases a quantity of friction reducer to the inflow line 2, which releases a constant proportion same per unit volume of operating fluid. This also more than compensates for the reduction in intake power caused by the temperature rise of the operating fluid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Pipeline Systems (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Zur verbesserten Betriebsweise (Ansaugdruckerhöhbung bei verminderter Antriebsleistung, geringere Schall­emission) wird der einströmenden Flüssigkeit ständig ein Anteil an makromolekularen Körpern als Reibungs­minderer zugesetzt. To improve the mode of operation (increased intake pressure with reduced drive power, lower noise emissions), a proportion of macromolecular bodies is added to the inflowing liquid as a friction reducer.

Description

Die Erfindung betrifft ein Verfahren und Einrichtung zum Betrieb von Flüssigkeitsmaschinen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method and device for operating liquid machines according to the preamble of patent claim 1.

Bei den bekannten Flüssigkeitsströmungsmaschinen hat man zur Steigerung der geförderten Flüssigkeitsmenge pro Zeiteinheit und Verbesserung des Wirkungsrades der Maschinen, d.h. zur Kleinhaltung der Verluste eine Opti­mierung der vom Flüssigkeitsstrom beaufschlagten Ma­schinenkonturen und einen möglichst wirbelfreien Strö­mungsverlauf innerhalb der Maschinen angestrebt sowie zur Erhöhung des Betriebsdruckes möglichst glatte Ober­flächen vorgesehen. Eine Herabsetzung von nach außen gelangenden Schallemissionen hat man durch gesonderte Schallisolierungen vorgenommen.In the known liquid flow machines one has to increase the amount of liquid delivered per unit of time and improve the efficiency of the machines, i.e. In order to keep losses low, optimization of the machine contours affected by the liquid flow and a flow path within the machines which is as free of eddies as possible are intended, and surfaces which are as smooth as possible are provided to increase the operating pressure. A reduction of outside noise emissions has been made by separate sound insulation.

Die genannten Maßnahmen sind nicht nur aufwendig, sondern lassen sich auch mit mehr Konstruktionsaufwand und zusätzlichen Maßnahmen, wenn überhaupt, nur in einem verhältnismäßig geringen Maße verbessern.The measures mentioned are not only complex, but can also be improved only to a relatively small extent with more design effort and additional measures, if at all.

Der Erfindung liegt die Aufgabe zugrunde, ohne konstruk­tive Sondermaßnahme für alle möglichen Arten und Typen von Flüssigkeitsströmungsmaschinen auf eine bessere Be­triebsweise zu erreichen, bei der der geförderte Flüs­sigkeitsstrom erheblich gesteigert werden kann bei ver­ringerter Antriebsleistung und eine Erhöhung des Be­triebsdruckes erreichbar ist, wobei eine Herabsetzung der Schallemissionen der Flüssigkeitsströmungsmaschinen erreicht werden kann.The invention has for its object to achieve a better mode of operation without special design measures for all possible types and types of liquid flow machines, in which the delivered liquid flow can be increased significantly with reduced drive power and an increase in operating pressure, with a reduction in noise emissions of fluid flow machines can be achieved.

Die Lösung der gestellten Aufgaben gelingt durch die kennzeichnenden Merkmale des Patentanspruchs 1.The problems set are solved by the characterizing features of patent claim 1.

Solche makromolekularen Stoffe können Polymere, insbe­sondere Polyacrylamide, sowie Tenside oder anorganische Fibern sein, die als flüssige Stammlösung oder in Pul­verform dem Flüssigkeitsstrom eingangs der betreffenden Maschinen zugegeben werden in einer auf dem Massen­durchfluß der strömenden Flüssigkeit jeweils abgestimm­ten Menge, wobei die vorzugsweise ständige Zuführung der besagten Reibungsminderer bzw. Strömungsbeschleuniger zum Massendurchfluß der in das Gehäuse einströmenden Flüssigkeit erfolgt.Such macromolecular substances can be polymers, in particular polyacrylamides, as well as surfactants or inorganic fibers, which are added as a liquid stock solution or in powder form to the liquid flow at the entrance to the machines in question, in an amount which is matched to the mass flow rate of the flowing liquid, the preferably continuous supply of said Friction reducer or flow accelerator for mass flow of the liquid flowing into the housing takes place.

Die Menge der ständig zugeführten Reibungsminderer ist im Verhältnis zur einströmenden Flüssigkeit relativ gering und daher der Verbrauch solcher Körper während der Betriebsdauer entsprechend klein.The amount of friction reducers constantly supplied is relatively small in relation to the inflowing liquid and therefore the consumption of such bodies during the operating period is correspondingly small.

Das Betriebsverfahren nach der Erfindung eignet sich insbesondere für Flüssigkeitsringmaschinen mit den Flüssigkeitsring im Gehäuse antreibenden Schaufelrädern, wobei im Kreisbetrieb solcher Maschinen, bei dem die Betriebsflüssigkeit aus einer hinter dem Gasauslaß an­geordneten Flüssigkeitsabscheider wieder der Maschine zugeführt wird und nur ein kleiner Flüssigkeitsverlust durch eine zugeführte Flüssigkeit ersetzt zu werden braucht, die Betriebsflüssigkeit nur im Maße der Ersatz­flüssigkeit mit entsprechend geringer Menge an Reibungs­minderern versehen werden muß.The operating method according to the invention is particularly suitable for liquid ring machines with paddle wheels driving the liquid ring in the housing, whereby in circular operation of such machines, in which the operating liquid is fed back to the machine from a liquid separator arranged behind the gas outlet and only a small loss of liquid is replaced by a supplied liquid needs to be, the operating fluid must only be provided with a correspondingly small amount of friction reducer to the extent of the replacement fluid.

Versuche an einer Flüssigkeitsring- Vakuumpumpe der Type 2BE1203 der Anmelderin haben bei Verwendung von Polyacrylamid mit verschiedener Konzentration (50 ppm und 96 ppm) in der Betriebsflüssigkeit erge­ben, daß mit höherem Anteil solcher molekularen Körper in der Betriebsflüssigkeit die Förderleistung in Ab­hängigkeit vom Ansaugdruck insbesondere im interessan­ten Arbeitsbereich um etwa 10 % und mehr erhöht und gleichzeitig der Bedarf an Antriebsleistung ebenfalls um etwa 10 % und mehr gesenkt und zusätzlich eine höhere Herabsetzung des Schallpegels erreicht werden kann.Tests on a liquid ring vacuum pump of the type 2BE1203 from the applicant have shown, when using polyacrylamide with different concentrations (50 ppm and 96 ppm) in the operating liquid, that with a higher proportion of such molecular bodies in the operating fluid, the delivery rate, depending on the suction pressure, in particular in the interesting work area, is increased by about 10% and more, and at the same time the need for drive power is also reduced by about 10% and more, and a higher reduction in the sound level can be achieved.

Eine Einrichtung zur Durchführung des Verfahrens ist in der Zeichnung schematisch angedeutet und nachfolgend erläutert, wobei eine Flüssigkeitsströmungsmaschine in Durchlaufbetrieb zugrunde gelegt ist.A device for carrying out the method is indicated schematically in the drawing and explained below, a liquid flow machine being used in continuous operation.

Die angedeutete Flüssigkeitspumpe 1 ist mit einer Zu­flußleitung 2 und mit einer Abflußleitung 3 für die Be­triebsflüssigkeit verbunden. An die Zuflußleitung 2 ist über eine Dosiervorrichtung 4 ein Vorratsbehälter 5 für pulverförmige bzw. flüssiggelöste Reibungsminderer ange­schlossen. Die Dosiervorrichtung 4 ist ihrerseits in Regelabhänigkeit von einem in der Abflußleitung 3 ange­ordneten Massendurchflußmesser 6 gebracht, derart, daß abhängig von der Menge der pro Zeiteinheit die Pumpe 1 durchfließenden Betriebsflüssigkeit die Dosiervorrich­tung 4 jeweils eine Menge an Reibungsminderer zur Zu­flußleitung 2 freigibt, die einen gleichbleibenden Anteil derselben pro Volumeneinheit der Betriebsflüs­sigkeit sicherstellt. Damit kann auch noch die durch den Temperaturanstieg der Betriebsflüssigkeit an sich bedingte Ansaugleistungsminderung mehr als ausgeglichen werden.The indicated liquid pump 1 is connected to an inflow line 2 and to an outflow line 3 for the operating liquid. A supply container 5 for powdered or liquid dissolved friction reducers is connected to the inflow line 2 via a metering device 4. The metering device 4 is, in turn, brought into dependence on a mass flow meter 6 arranged in the drain line 3, such that, depending on the amount of operating fluid flowing through the pump 1 per unit of time, the metering device 4 releases a quantity of friction reducer to the inflow line 2, which releases a constant proportion same per unit volume of operating fluid. This also more than compensates for the reduction in intake power caused by the temperature rise of the operating fluid.

Claims (6)

1) Verfahren zum Betrieb von Flüssigkeitsströmungs­maschinen mit rotierenden Förderanordnungen,
dadurch gekennzeichnet,
daß der in die Flüssigkeitsströmungsmaschine einströmen­den Flüssigkeit in definierter Menge als Reibungsminde­rer oder Strömungsbeschleuniger wirkende makromolekulare Körper zugesetzt werden.1) method for operating liquid flow machines with rotating conveyor arrangements,
characterized by
that macromolecular bodies which act as friction reducers or flow accelerators are added to the liquid flowing into the liquid flow machine in a defined amount. 2) Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die makromolekularen Körper in auf den Massendurch­fluß der Flüssigkeit abgestimmter Menge dieser zuge­führt werden.2) Method according to claim 1,
characterized by
that the macromolecular bodies are supplied to the liquid in an amount adapted to the mass flow rate. 3) Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
daß die makromolekularen Körper der Flüssigkeit geregelt zugeführt werden.3) Method according to claim 2,
characterized by
that the macromolecular bodies of the liquid are supplied in a controlled manner. 4) Verfahren nach den vorhergehenden Ansprüchen,
dadurch gekennzeichnet,
daß die makromolekularen Körper in Pulverform oder als flüssige Stammlösung der Flüssigkeit zugeführt werden.4) method according to the preceding claims,
characterized by
that the macromolecular bodies are supplied in powder form or as a liquid stock solution of the liquid. 5) Verfahren nach den vorhergehenden Ansprüchen,
dadurch gekennzeichnet,
daß organische und/oder anorganische makromolekulare Körper verwendet werden.5) method according to the preceding claims,
characterized by
that organic and / or inorganic macromolecular bodies are used. 6) Einrichtung zur Durchführung des Verfahrens nach Anspruch 1 bis 5,
dadurch gekennzeichnet,
daß ein Vorratsbehälter (5) für die makromolekularen Körper über eine vom Massendurchfluß (5) der Flüssigkeit abhängig beeinflußte Dosiervorrichtung (4) an die Zu­flußleitung (2) zur Flüssigkeitsströmungsmaschine (1) angeschlossen ist.6) device for performing the method according to claim 1 to 5,
characterized by
that a reservoir (5) for the macromolecular bodies is connected via a metering device (4) which is influenced by the mass flow (5) of the liquid to the inflow line (2) to the liquid flow machine (1).
EP86117072A 1985-12-19 1986-12-08 Method and apparatus for the operation of liquid flow machines Expired EP0229970B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117072T ATE43698T1 (en) 1985-12-19 1986-12-08 METHOD AND EQUIPMENT FOR OPERATION OF LIQUID-FLOW MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853545101 DE3545101A1 (en) 1985-12-19 1985-12-19 METHOD AND DEVICE FOR THE OPERATION OF LIQUID FLOWING MACHINES
DE3545101 1985-12-19

Publications (2)

Publication Number Publication Date
EP0229970A1 true EP0229970A1 (en) 1987-07-29
EP0229970B1 EP0229970B1 (en) 1989-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117072A Expired EP0229970B1 (en) 1985-12-19 1986-12-08 Method and apparatus for the operation of liquid flow machines

Country Status (7)

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US (1) US4842486A (en)
EP (1) EP0229970B1 (en)
JP (1) JPH06105077B2 (en)
AT (1) ATE43698T1 (en)
CA (1) CA1275573C (en)
DE (2) DE3545101A1 (en)
IN (1) IN164866B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220938A (en) * 1992-04-14 1993-06-22 Vic Kley Fluid flow friction reduction system
US6591671B2 (en) 1999-08-16 2003-07-15 The Goodyear Tire & Rubber Company Monitoring pneumatic tire conditions
US6518877B1 (en) 2001-05-31 2003-02-11 The Goodyear Tire & Rubber Company Pneumatic tire monitor
US7295103B2 (en) 2004-12-22 2007-11-13 The Goodyear Tire & Rubber Company Integrated sensor system and method for a farm tire
DE102005043434A1 (en) * 2005-09-13 2007-03-15 Gardner Denver Elmo Technology Gmbh Device for adjusting the capacity of a liquid ring pump
CA2880166C (en) 2012-08-17 2019-06-18 Ecolab Usa Inc. Environmentally beneficial recycling of brines in the process of reducing friction resulting from turbulent flow
DE102016003428B4 (en) 2016-03-21 2022-02-10 Richard Bethmann heat pump system
IT202100016139A1 (en) * 2021-06-21 2022-12-21 Tecnorama Srl Equipment for producing dye solutions for the textile industry.

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US2421968A (en) * 1941-08-30 1947-06-10 Lummus Co Method of conveying fluids
US3290883A (en) * 1965-04-29 1966-12-13 Gen Electric Drag reduction in hydraulic equipment
US3961639A (en) * 1973-09-10 1976-06-08 The Curators Of The University Of Missouri Methods and compositions for reducing the frictional resistance to flow of aqueous liquids
EP0003821A1 (en) * 1978-02-23 1979-09-05 Hoechst Aktiengesellschaft Process for reducing friction flow losses in turbulent or pulsatory flowing aqueous liquids and suspensions
DE2818837A1 (en) * 1978-04-28 1979-11-08 Siemens Ag Vacuum prodn. during reactive resin mass processing - using high molecular solvents as pump lubricants and cleansing agents
US4236545A (en) * 1977-12-30 1980-12-02 Hercules Incorporated Use of radiation-induced polymers as friction reducing agents
DE3040901A1 (en) * 1980-10-27 1982-06-16 Mannesmann AG, 4000 Düsseldorf Methanol and crude oil transportation in a pipeline - as alternate slugs of methanol-oil emulsion and methanol, opt. contg. powdered coal
US4397748A (en) * 1981-11-12 1983-08-09 Marathon Oil Company Treatment of sanitary sewer systems
US4420008A (en) * 1982-01-29 1983-12-13 Mobil Oil Corporation Method for transporting viscous crude oils

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US3862077A (en) * 1971-02-22 1975-01-21 Cpc International Inc Stable latexes of a chemically joined, phase separated thermoplastic graft copolymer and method for preparing the same
US3720216A (en) * 1971-09-27 1973-03-13 Union Carbide Corp Method for reducing the dynamic drag of a turbulent aqueous stream
JPS4935651A (en) * 1972-08-11 1974-04-02
US4016894A (en) * 1975-08-28 1977-04-12 Belknap Corporation Drag reducing composition and method
SU687258A1 (en) * 1976-09-10 1979-09-25 Предприятие П/Я А-3605 Method of operation of liquid-containing annular-type machine
DE3152654C2 (en) * 1980-12-22 1987-07-16 Electrolux Ab Process for washing textile articles and device for carrying out the process
SU1154490A2 (en) * 1983-07-06 1985-05-07 Белорусский Ордена Трудового Красного Знамени Технологический Институт Им.С.М.Кирова Multicomponent working fluid for fluid-ring machines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421968A (en) * 1941-08-30 1947-06-10 Lummus Co Method of conveying fluids
US3290883A (en) * 1965-04-29 1966-12-13 Gen Electric Drag reduction in hydraulic equipment
US3961639A (en) * 1973-09-10 1976-06-08 The Curators Of The University Of Missouri Methods and compositions for reducing the frictional resistance to flow of aqueous liquids
US4236545A (en) * 1977-12-30 1980-12-02 Hercules Incorporated Use of radiation-induced polymers as friction reducing agents
EP0003821A1 (en) * 1978-02-23 1979-09-05 Hoechst Aktiengesellschaft Process for reducing friction flow losses in turbulent or pulsatory flowing aqueous liquids and suspensions
DE2818837A1 (en) * 1978-04-28 1979-11-08 Siemens Ag Vacuum prodn. during reactive resin mass processing - using high molecular solvents as pump lubricants and cleansing agents
DE3040901A1 (en) * 1980-10-27 1982-06-16 Mannesmann AG, 4000 Düsseldorf Methanol and crude oil transportation in a pipeline - as alternate slugs of methanol-oil emulsion and methanol, opt. contg. powdered coal
US4397748A (en) * 1981-11-12 1983-08-09 Marathon Oil Company Treatment of sanitary sewer systems
US4420008A (en) * 1982-01-29 1983-12-13 Mobil Oil Corporation Method for transporting viscous crude oils

Also Published As

Publication number Publication date
DE3545101A1 (en) 1987-06-25
JPH06105077B2 (en) 1994-12-21
DE3663731D1 (en) 1989-07-06
CA1275573C (en) 1990-10-30
JPS62157298A (en) 1987-07-13
IN164866B (en) 1989-06-24
EP0229970B1 (en) 1989-05-31
ATE43698T1 (en) 1989-06-15
US4842486A (en) 1989-06-27

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