DE10244369B3 - Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts - Google Patents

Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts Download PDF

Info

Publication number
DE10244369B3
DE10244369B3 DE10244369A DE10244369A DE10244369B3 DE 10244369 B3 DE10244369 B3 DE 10244369B3 DE 10244369 A DE10244369 A DE 10244369A DE 10244369 A DE10244369 A DE 10244369A DE 10244369 B3 DE10244369 B3 DE 10244369B3
Authority
DE
Germany
Prior art keywords
membrane
cone
flow
permit
bores
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 - Lifetime
Application number
DE10244369A
Other languages
German (de)
Inventor
Manfred Dehnen
Heiko Habel
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.)
Andreas Hofer Hochdrucktechnik GmbH
Original Assignee
Andreas Hofer Hochdrucktechnik GmbH
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 Andreas Hofer Hochdrucktechnik GmbH filed Critical Andreas Hofer Hochdrucktechnik GmbH
Priority to DE10244369A priority Critical patent/DE10244369B3/en
Application granted granted Critical
Publication of DE10244369B3 publication Critical patent/DE10244369B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/053Pumps having fluid drive
    • F04B45/0533Pumps having fluid drive the fluid being actuated directly by a piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The hydrodynamic flow limiter consists of a cone (5) of set diameter and set height. This has conical bores (6) to block the oil flow from a first direction but permit the flow from another direction, but has no moveable parts. The cone is part of a membrane head with cylinder (7), piston (8), and hydraulic chamber (9).

Description

Der Membrankopf eines Membrankompressors besteht im wesentlichen aus zwei, durch ein Membranpaket, voneinander getrennten Arbeitsräumen, nämlich dem Gas- und dem Hydraulikraum. Ein im Hydraulikraum bewegter Kolben erzeugt dort einen Überdruck, durch den das Membranpaket verformt und somit das Medium im Gasraum verdichtet und durch ein Ventil ausgeschoben bzw. im Rückhub angesaugt wird.The membrane head of a membrane compressor consists essentially of two, by a membrane package, from each other separate workspaces, namely the gas and the hydraulic room. A piston moving in the hydraulic chamber creates an overpressure there, through which the membrane package is deformed and thus the medium in the gas space compressed and pushed out by a valve or sucked in on the return stroke becomes.

Bisherige Membranköpfe müssen wie in der Schrift DE 100 56 708 C1 dargestellt mit einem Rückschlagventil mit bewegten mechanischen Teilen oder ganz ohne Vorrichtung für die Strömungslenkung auskommen. Weiterhin dient nur eine Lochplatte mit unterschiedlich ausgebildeten Geometrien zu einer, in diesem Fall aber eher gleichmäßigen, nicht stoßhaften Öldruckverteilung auf das Membranpaket. Die Lösung in der Schrift DE 100 56 708 C1 hat zwei entscheidende Nachteile. Zum einen unterliegen die Bauteile einem Verschleißprozeß, da diese trotz dämpfender Wirkung des Öles einer hohen Belastung ausgesetzt sind. Die Druckdifferenzen während eines Hubes können im Bereich zwischen 30 und 800 bar liegen. Bei Antriebsdrehzahlen zwischen 200 – 750 min–1 unterliegen die Bauteile somit einer sehr hohen Schwellbelastung.Previous membrane heads must be as in the font DE 100 56 708 C1 shown with a check valve with moving mechanical parts or completely without a device for flow control. Furthermore, only one perforated plate with differently designed geometries is used for a, in this case rather uniform, non-abrupt oil pressure distribution on the membrane package. The solution in Scripture DE 100 56 708 C1 has two major disadvantages. On the one hand, the components are subject to a wear process, as they are exposed to high loads despite the oil's dampening effect. The pressure differences during a stroke can be in the range between 30 and 800 bar. At drive speeds between 200 - 750 min –1 , the components are subject to a very high threshold load.

Zum anderen sind bewegte Teile grundsätzlich stärker gegen Versagen durch Bruch gefährdet als unbewegte. Lose Teile, z. B. durch Platten- oder Federbruch, im Hydraulikraum können schwere Schäden an Kolben, Lochplatte oder Membran verursachen. Ein Fremdkörper, der zwischen Membran und Lochplatte gespült wird führt zwangsläufig zum Membranbruch mit allen Konsequenzen (z. B. kann Öl den Gasraum kontaminieren wenn durch große Fremdkörper alle Membranen gleichzeitig zerstört werden).On the other hand, moving parts are fundamentally more opposed Failure at risk of failure as unmoved. Loose parts, e.g. B. by plate or spring break, in Hydraulic room can heavy damage on the piston, perforated plate or membrane. A foreign body that rinsing between the membrane and the perforated plate inevitably leads to membrane breakage with all Consequences (e.g. oil contaminate the gas space if all membranes are caused by large foreign bodies be destroyed).

Für die Förderleistung und somit den Wirkungsgrad eines Membrankopfes ist der Strömungsverlauf und damit der Druckaufbau im Hydraulikraum des Membrankopfes jedoch von entscheidender Bedeutung. Nur durch eine Strömung, die einen Druckaufbau von außen nach innen erzeugt, ist gewährleistet, dass sich das Membranpaket vom äußeren Durchmesser beginnend nach innen am Membrandeckel abrollt und das Gas komplett aus dem Membrankopf geschoben wird. Andernfalls bilden sich lokale Gaspolster (-blasen), die die Förderleistung ver schlechtem und durch örtliche Spannungsspitzen die Lebensdauer des Membranpaketes reduzieren.For the capacity and thus the efficiency of a membrane head is the flow pattern and the pressure build-up in the hydraulic chamber of the diaphragm head, however vital. Only through a flow that builds up pressure from the outside generated internally is guaranteed that the membrane package is from the outer diameter starting on the inside of the membrane cover and the gas completely is pushed out of the membrane head. Otherwise local ones form Gas cushions (bubbles) that affect the delivery rate bad and through local Voltage peaks reduce the life of the membrane package.

Diese genannte verlustarme Strömung wird durch die im Patentanspruch gemachte Erfindung wie folgt erreicht:
Bild 1 zeigt einen Membrankopf mit Zylinder, bestehend aus folgenden Hauptkomponenten:
This low-loss flow is achieved by the invention as claimed in the claim:
Figure 1 shows a membrane head with cylinder, consisting of the following main components:

  • (1) Flansch( 1 ) Flange
  • (2) Deckel( 2 ) Cover
  • (3) Lochplatte( 3 ) Perforated plate
  • (4) Membran( 4 ) Membrane
  • (5) Kegel mit (6) konischen Bohrungen( 5 ) Cone with ( 6 ) conical holes
  • (7) Zylinder( 7 ) Cylinder
  • (8) Kolben( 8th ) Piston
  • (9) Hydraulikraum( 9 ) Hydraulic room

Ein auf eine Lochplatte (3) geschraubter Kegel (5) mit bestimmtem Durchmesser und bestimmter Höhe leitet das Öl mittels eines Kolbens (8) vom Zylinder (7) in den Hydraulikraum (9) des Membrankopfes nach außen. Die konischen Bohrungen (6) im Kegel sind so ausgeführt, dass diese den Durchfluß im Druckhub geometriebedingt sperren, im Saughub jedoch den Ölfluß von der Mitte des Membrankopfes heraus beschleunigen. Der mit solchen konischen Bohrungen versehene Kegel hat somit die Funktion eines Strömungsbegrenzers (im weiteren Sinne ähnlich einem Rückschlagventil), ohne dass – wie sonst üblich – mechanisch bewegte Komponenten benötigt werden. Ein ausgeführtes Beispiel zeigt Bild 2.One on a perforated plate ( 3 ) screwed cone ( 5 ) with a certain diameter and a certain height conducts the oil using a piston ( 8th ) from the cylinder ( 7 ) in the hydraulic room ( 9 ) of the membrane head to the outside. The conical holes ( 6 ) in the cone are designed so that they block the flow in the pressure stroke due to geometry, but accelerate the oil flow from the center of the diaphragm head in the suction stroke. The cone provided with such conical bores thus has the function of a flow limiter (in the broader sense similar to a check valve) without the need for mechanically moving components, as is usual. An example is shown in Figure 2.

Die mit dieser Erfindung erzielten Vorteile gegenüber herkömmlich gebauten Membranköpfen sind:The achieved with this invention Advantages over conventional built membrane heads are:

  • – höherer Wirkungsgrad durch Reduzierung / Vermeidung von dissipativen Grenzschichtablösungen und damit verbundenen Strömungswirbeln (Totwassergebiete)- higher efficiency by reducing / avoiding dissipative boundary layer detachments and associated vortexes (dead water areas)
  • – höherer Wirkungsgrad durch hundertprozentige Ausnutzung des geometrischen Arbeitsraumes (Membranhubvolumen)- higher efficiency through 100% utilization of the geometric working space (diaphragm stroke volume)
  • – keine lokalen, erhöhten Biegespannungen in den Membranen durch Vermeidung von Gaspolsterbildung, dadurch verlängerte Standzeiten der Membranen mit entsprechend höherer Verfügbarkeit der Maschinen.- no local, elevated Bending stresses in the membranes by avoiding gas cushion formation, thereby lengthened Service life of the membranes with a correspondingly higher availability of the machines.

Claims (1)

Hydrodynamischer Stömungsbegrenzer zur Steuerung der Ölströmung in einem Membrankopf eines Membrankompressors, dadurch gekennzeichnet, dass der hydrodynamische Strömungsbegrenzer aus einem Kegel bestimmten Durchmessers und bestimmter Höhe besteht und in welchem konische Bohrungen die Ölströmung von der einen Anströmrichtung her sperren, von der anderen jedoch begünstigen , ohne dass bewegte Komponenten benötigt werden.Hydrodynamic flow limiter for controlling the oil flow in a diaphragm head of a diaphragm compressor, characterized in that the hydrodynamic flow limiter consists of a cone of a certain diameter and a certain height and in which conical bores block the oil flow from one direction of flow, but favor the other without moving components are required.
DE10244369A 2002-09-24 2002-09-24 Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts Expired - Lifetime DE10244369B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10244369A DE10244369B3 (en) 2002-09-24 2002-09-24 Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10244369A DE10244369B3 (en) 2002-09-24 2002-09-24 Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts

Publications (1)

Publication Number Publication Date
DE10244369B3 true DE10244369B3 (en) 2004-04-15

Family

ID=32009873

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10244369A Expired - Lifetime DE10244369B3 (en) 2002-09-24 2002-09-24 Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts

Country Status (1)

Country Link
DE (1) DE10244369B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111794950A (en) * 2020-07-06 2020-10-20 沈阳远大压缩机有限公司 Diaphragm compressor cylinder seal structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413851A (en) * 1945-07-03 1947-01-07 Malsbary Mfg Company Pump
DE10056708C1 (en) * 2000-11-15 2002-03-07 Horst Kleibrink Oil flow optimization device, for membrane compressor, has valve plate used for closing holes in central area of aperture plate during pressure stroke of compressor piston

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413851A (en) * 1945-07-03 1947-01-07 Malsbary Mfg Company Pump
DE10056708C1 (en) * 2000-11-15 2002-03-07 Horst Kleibrink Oil flow optimization device, for membrane compressor, has valve plate used for closing holes in central area of aperture plate during pressure stroke of compressor piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111794950A (en) * 2020-07-06 2020-10-20 沈阳远大压缩机有限公司 Diaphragm compressor cylinder seal structure

Similar Documents

Publication Publication Date Title
DE102017002566B4 (en) VIBRATION DAMPER FOR A RAILWAY VEHICLE
DE102009036663A1 (en) Double-acting high-pressure hydraulic pump
DE102013021913B4 (en) Automatic pressure drain pump
DE10244369B3 (en) Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts
DE102016118853B3 (en) Electrohydraulic drive unit
DE3312510C2 (en) One-way flow control valve
DE102018120000A1 (en) Electrohydrostatic actuator system with suction tank
DE10209758B4 (en) Process for optimizing the gas flow within a membrane compressor
AT514737B1 (en) Solvent pump
EP3523120B1 (en) Electro-hydraulic drive unit
DE2515535A1 (en) DIAPHRAGM PUMP
WO1998011979A1 (en) Motor-driven reverse-osmosis pumping device
DE2123263A1 (en) Hydraulic press cylinder with fast forward and fast return
DE29505354U1 (en) Diaphragm piston pump
WO2023117569A1 (en) Vehicle seat system
DE382964C (en) Diaphragm compressor
DE10206667C1 (en) High pressure injection pump has membrane between pumped fluid space and pressure fluid space supported by projections of movable guide body
DE102021125047A1 (en) High pressure compressor and system with a high pressure compressor
DE1453643A1 (en) Method and device for keeping the amount of pressure medium constant in the pressure chamber of diaphragm pumps
DE19651386B4 (en) Vane pump
DE111199C (en)
DE390701C (en) Hydraulic fluid force accumulator
DE389519C (en) Diaphragm compressor
DE2408006C3 (en) Compressed air operated membrane pumps, in particular for laboratory purposes
DE961280C (en) Pressure converter, especially for moving the electrode in resistance welding machines

Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
8364 No opposition during term of opposition
R071 Expiry of right