DE3828078A1 - Pressure-reducing valve - Google Patents

Pressure-reducing valve

Info

Publication number
DE3828078A1
DE3828078A1 DE3828078A DE3828078A DE3828078A1 DE 3828078 A1 DE3828078 A1 DE 3828078A1 DE 3828078 A DE3828078 A DE 3828078A DE 3828078 A DE3828078 A DE 3828078A DE 3828078 A1 DE3828078 A1 DE 3828078A1
Authority
DE
Germany
Prior art keywords
reducing valve
throttle
nozzle needle
pressure reducing
housing
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.)
Withdrawn
Application number
DE3828078A
Other languages
German (de)
Inventor
Hans-Georg Kaltenberg
Herbert Dombrowski
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DE3828078A priority Critical patent/DE3828078A1/en
Priority to GR890100322A priority patent/GR890100322A/en
Priority to CN 89105620 priority patent/CN1040423A/en
Publication of DE3828078A1 publication Critical patent/DE3828078A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

The intention is to develop a pressure-reducing valve for abrasive suspensions which allows a longer service life while at the same time being easy to maintain. In the case of a pressure-reducing valve for abrasive suspensions, consisting of a valve chamber, a restrictor, a nozzle needle and a nozzle-needle bearing arrangement, the valve chamber consists of a ball-joint housing (1) with a connected cylindrical restrictor housing (2), the nozzle needle (3) being mounted in the ball-joint housing (1) so as to be movable towards the restrictor (5), while the tip (4) of the nozzle needle (3) projects from the ball-joint housing (1) into the cylindrical restrictor housing (2). Production of a pressure-reducing valve for abrasive suspensions. <IMAGE>

Description

Die Neuerung betrifft ein Druckreduzierventil für abrasive Suspensionen, bestehend aus einer Ventilkammer, einer Drossel einer Düsennadel und Düsennadellagerung.The innovation concerns a pressure reducing valve for abrasive Suspensions consisting of a valve chamber and a throttle a nozzle needle and nozzle needle bearing.

Druckreduzierventile der eingangs genannten Art sind im Maschinenbau in vielfältiger Ausführung auch als "einstellbare Düse" bekannt. Oftmals wird mit ihnen Dampf auf eine vorgegebene Größe heruntergedrosselt, wobei die Steuerung des Dampfdruckes über eine Membran und eine Spindel auf das kegelförmige Drossel­ ventil erfolgt. Auch wenn es bei diesen Einrichtungen um die Regelung relativ sauberen Prozeßdampfes geht, werden zum Auf­ fangen von Rostteilchen und anderen Partikeln Filter in die Dampfleitung eingebaut.Pressure reducing valves of the type mentioned are in Mechanical engineering in various designs also as "adjustable Nozzle "is known. Often, they are used to steam to a predetermined Size throttled down, controlling vapor pressure via a membrane and a spindle on the conical throttle valve is done. Even if these institutions are concerned with Control of relatively clean process steam is going on trap rust particles and other particles in the filter Steam line installed.

Besondere Probleme ergeben sich, wenn anstelle von Dampf abrasive Suspensionen, wie beispielsweise Bauxitsuspensionen durch das Druckreduzierventil geschickt werden. Nach kurzer Zeit ist die Druckreduzierung durch die hohe Verschleißrate nicht ausreichend und kann den vorgegebenen Sollwert nicht mehr ein­ halten.Particular problems arise when instead of steam abrasive suspensions, such as bauxite suspensions be sent through the pressure reducing valve. After a short time is not the pressure reduction due to the high wear rate sufficient and can no longer enter the specified setpoint hold.

Aufgabe der vorliegenden Neuerung ist es die beschriebenen Nachteile zu vermeiden und ein Druckreduzierventil für aggressive Suspensionen zu schaffen, das eine höhere Standzeit bei gleichzeitiger Wartungsfreundlichkeit ermöglicht.The task of the present innovation is that described Avoid disadvantages and a pressure reducing valve for to create aggressive suspensions that have a longer service life while maintaining ease of maintenance.

Die Aufgabe wird neuerungsgemäß durch die in den Schutzan­ sprüchen angegebenen Merkmale gelöst. Ein Beispiel wird anhand der Figur im folgenden näher erläutert:The task is renewed by those in the protection characteristics specified resolved. An example is given the figure explained in more detail below:

Im Kugelgehäuse 1 sind zwei axial gegenüberliegende Flansche 6, 7 angeordnet, die die Lagerung 8, 9 der Düsennadel 3 aufnehmen. Die abschraubbare Spitze 4 der Düsennadel 3 ragt in das zylinderförmige Drosselgehäuse 2 hinein, an dessen Ende die Drossel 5 angeordnet ist. Dabei ist der Durchmesser der Drossel 5 stets größer als der in sie hineinragende Durch­ messer der Düsennadel 3 bzw. ihrer Spitze 4. Dies soll einen vollständigen Verschluß des Druckreduzierventils verhindern.In the ball housing 1 , two axially opposite flanges 6 , 7 are arranged which accommodate the bearings 8 , 9 of the nozzle needle 3 . The unscrewable tip 4 of the nozzle needle 3 protrudes into the cylindrical throttle housing 2 , at the end of which the throttle 5 is arranged. The diameter of the throttle 5 is always larger than the diameter of the nozzle needle 3 or its tip 4 protruding into it. This is to prevent the pressure reducing valve from being completely closed.

Die Suspension strömt über den Einlaß 10 in das Kugelgehäuse 1 und von dort über den Flansch 6 in das Drosselgehäuse 2 und die Drossel 5 ein. Die Düsennadel 3 wird über einen Stellmotor (nicht dargestellt) in axialer Richtung verschoben, wodurch der Drosselquerschnitt, gemessen zwischen der Spitze 4 der Düsennadel und der Wandung der Drossel 5 verändert wird. Das Steuersignal für den Stellmotor wird über einen Druckgeber (nicht dargestellt) am Ausgang der Drossel 5 entnommen. Es ist auch möglich, das Steuersignal vor dem Kugelgehäuse 1 zu entnehmen, um den Druck an dieser Stelle zu regeln.The suspension flows through the inlet 10 into the ball housing 1 and from there via the flange 6 into the throttle housing 2 and the throttle 5 . The nozzle needle 3 is displaced in the axial direction via a servomotor (not shown), as a result of which the throttle cross section, measured between the tip 4 of the nozzle needle and the wall of the throttle 5 , is changed. The control signal for the servomotor is taken from a pressure sensor (not shown) at the output of the throttle 5 . It is also possible to take the control signal in front of the ball housing 1 in order to regulate the pressure at this point.

Claims (7)

1. Druckreduzierventil für abrasive Suspensionen, bestehend aus einer Ventilkammer, einer Drossel, einer Düsennadel und einer Düsennadellagerung, dadurch gekennzeichnet, daß die Ventilkammer aus einem Kugelgehäuse (1) mit angeschlossenem zylinderförmigen Drosselgehäuse (2) besteht, wobei die Düsennadel (3) im Kugelgehäuse (1) beweglich in Richtung Drossel (5) gelagert ist, während die Spitze (4) der Düsennadel (3) aus dem Kugelgehäuse (1) in das zylinderför­ mige Drosselgehäuse (2) hineinragt.1. Pressure reducing valve for abrasive suspensions, consisting of a valve chamber, a throttle, a nozzle needle and a nozzle needle bearing, characterized in that the valve chamber consists of a ball housing ( 1 ) with a connected cylindrical throttle housing ( 2 ), the nozzle needle ( 3 ) in the ball housing ( 1 ) is movably mounted in the direction of the throttle ( 5 ), while the tip ( 4 ) of the nozzle needle ( 3 ) protrudes from the ball housing ( 1 ) into the cylinder-shaped throttle housing ( 2 ). 2. Druckreduzierventil nach Anspruch 1, dadurch gekennzeichnet, daß die Drossel (5) am im Strömungsrichtung hinteren Ende des Drosselgehäuses (2) angeordnet ist.2. Pressure reducing valve according to claim 1, characterized in that the throttle ( 5 ) is arranged at the rear end of the throttle housing ( 2 ) in the flow direction. 3. Druckreduzierventil nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß der Durchmesser der Düsennadel kleiner ist als der Durchmesser der Drossel (5).3. Pressure reducing valve according to claim 1 or 2, characterized in that the diameter of the nozzle needle is smaller than the diameter of the throttle ( 5 ). 4. Druckreduzierventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Drossel (5) aus einem Hart­ metall auf Kobaltbasis besteht.4. Pressure reducing valve according to one of the preceding claims, characterized in that the throttle ( 5 ) consists of a hard metal based on cobalt. 5. Druckreduzierventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Drossel aus folgendem Werk­ stoff in Gew.-% besteht: 40-60 Co, 25-30 Cr, 6-10 Ni, 5-6 Nb, 3-4 Mo, 1-5 C, 1-5 Cu, Rest herstellungsbedingte Verunreinigungen.5. Pressure reducing valve according to one of the preceding claims, characterized in that the throttle from the following plant % by weight: 40-60 Co, 25-30 Cr, 6-10 Ni, 5-6 Nb, 3-4 Mo, 1-5 C, 1-5 Cu, Rest of production-related impurities. 6. Druckreduzierventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Spitze (4) von der Düsennadel (3) abnehmbar ist. 6. Pressure reducing valve according to one of the preceding claims, characterized in that the tip ( 4 ) of the nozzle needle ( 3 ) is removable. 7. Druckreduzierventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Spitze (4) aus folgendem Werkstoff in Gew.-% besteht: 45-55 Co, 25-30% Cr, 6-10 Ni, 5-6 Nb, 3-4 Mo, 1-5 C, 1-5 Cu, Rest herstellungsbedingte Verunreinigungen.7. Pressure reducing valve according to one of the preceding claims, characterized in that the tip ( 4 ) consists of the following material in wt .-%: 45-55 Co, 25-30% Cr, 6-10 Ni, 5-6 Nb, 3rd -4 Mo, 1-5 C, 1-5 Cu, remainder manufacturing-related impurities.
DE3828078A 1988-08-18 1988-08-18 Pressure-reducing valve Withdrawn DE3828078A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE3828078A DE3828078A1 (en) 1988-08-18 1988-08-18 Pressure-reducing valve
GR890100322A GR890100322A (en) 1988-08-18 1989-05-15 Valve for reducing pressure
CN 89105620 CN1040423A (en) 1988-08-18 1989-08-17 Reduction valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3828078A DE3828078A1 (en) 1988-08-18 1988-08-18 Pressure-reducing valve

Publications (1)

Publication Number Publication Date
DE3828078A1 true DE3828078A1 (en) 1990-02-22

Family

ID=6361132

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3828078A Withdrawn DE3828078A1 (en) 1988-08-18 1988-08-18 Pressure-reducing valve

Country Status (3)

Country Link
CN (1) CN1040423A (en)
DE (1) DE3828078A1 (en)
GR (1) GR890100322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057944A1 (en) * 2000-11-22 2002-06-06 Suedmo Components Gmbh Constant pressure valve has pneumatic drive which controls movement of valve cone and is adjusted to apply constant force to valve stem, so that fluctuations in pressure on upstream side of valve are compensated for

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO334212B1 (en) * 2005-08-23 2014-01-13 Typhonix As Device at control valve
CN103047476A (en) * 2011-10-15 2013-04-17 江苏神通阀门股份有限公司 Split piston axial-flow type regulating valve
CN103032581B (en) * 2012-12-31 2017-09-05 中国人民解放军国防科学技术大学 Continuously adjustabe sonic nozzle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1449873A (en) * 1922-01-20 1923-03-27 Frederick W Steuber Nozzle
GB325001A (en) * 1928-11-09 1930-02-10 William Dopp Shaffer Valves for controlling flow of fluid
DE653469C (en) * 1933-05-04 1937-11-24 Meyer Fa Rud Otto Device on shut-off devices to regulate the flow rate
US2531479A (en) * 1944-12-22 1950-11-28 John A Southern Flow regulation valve
DE1550496C (en) * 1971-12-09 Gebrüder Sulzer AG, Winterthur (Schweiz) Valve for large pressure drops
DE2612512A1 (en) * 1975-03-28 1976-10-14 Chappell Industries ADJUSTABLE THROTTLE FOR THE FLOW DOSAGE OR - CONTROL OF BOREHOLE FLUID
DE2609516A1 (en) * 1976-03-08 1977-09-15 Bayer Ag Control valve with noise deadening throttle passages - has inlet opening covered by disc with holes into which throttling plugs can be moved
DE2724931A1 (en) * 1976-06-21 1977-12-29 Lonza Ag DEVICE FOR SPRAYING DISPERSE SYSTEMS
DE3233445A1 (en) * 1982-09-09 1984-03-15 Basf Ag, 6700 Ludwigshafen Expansion valve for the expansion of hydrogenation residues of coal and heavy-oil hydrogenation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014280B (en) * 1978-02-11 1982-09-15 Lucas Industries Ltd Valve member for a molten metal metering valve
JPS57101167A (en) * 1980-12-15 1982-06-23 Toyo Eng Corp Pressure reducing valve for coal liquefaction and coal gasification plant
GB2109089A (en) * 1981-11-04 1983-05-25 British Nuclear Fuels Ltd Throttling valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550496C (en) * 1971-12-09 Gebrüder Sulzer AG, Winterthur (Schweiz) Valve for large pressure drops
US1449873A (en) * 1922-01-20 1923-03-27 Frederick W Steuber Nozzle
GB325001A (en) * 1928-11-09 1930-02-10 William Dopp Shaffer Valves for controlling flow of fluid
DE653469C (en) * 1933-05-04 1937-11-24 Meyer Fa Rud Otto Device on shut-off devices to regulate the flow rate
US2531479A (en) * 1944-12-22 1950-11-28 John A Southern Flow regulation valve
DE2612512A1 (en) * 1975-03-28 1976-10-14 Chappell Industries ADJUSTABLE THROTTLE FOR THE FLOW DOSAGE OR - CONTROL OF BOREHOLE FLUID
DE2609516A1 (en) * 1976-03-08 1977-09-15 Bayer Ag Control valve with noise deadening throttle passages - has inlet opening covered by disc with holes into which throttling plugs can be moved
DE2724931A1 (en) * 1976-06-21 1977-12-29 Lonza Ag DEVICE FOR SPRAYING DISPERSE SYSTEMS
DE3233445A1 (en) * 1982-09-09 1984-03-15 Basf Ag, 6700 Ludwigshafen Expansion valve for the expansion of hydrogenation residues of coal and heavy-oil hydrogenation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057944A1 (en) * 2000-11-22 2002-06-06 Suedmo Components Gmbh Constant pressure valve has pneumatic drive which controls movement of valve cone and is adjusted to apply constant force to valve stem, so that fluctuations in pressure on upstream side of valve are compensated for

Also Published As

Publication number Publication date
CN1040423A (en) 1990-03-14
GR890100322A (en) 1990-08-22

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8130 Withdrawal