DE3142964A1 - Screw-type compressor - Google Patents

Screw-type compressor

Info

Publication number
DE3142964A1
DE3142964A1 DE19813142964 DE3142964A DE3142964A1 DE 3142964 A1 DE3142964 A1 DE 3142964A1 DE 19813142964 DE19813142964 DE 19813142964 DE 3142964 A DE3142964 A DE 3142964A DE 3142964 A1 DE3142964 A1 DE 3142964A1
Authority
DE
Germany
Prior art keywords
ball valve
screw
throttle
screw compressor
type compressor
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.)
Ceased
Application number
DE19813142964
Other languages
German (de)
Inventor
Hans Ing.(grad.) 6236 Eschborn Breckheimer
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to DE19813142964 priority Critical patent/DE3142964A1/en
Publication of DE3142964A1 publication Critical patent/DE3142964A1/en
Ceased legal-status Critical Current

Links

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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

For controlling the volume flow in a screw-type compressor a throttle element with improved characteristic is proposed. It comprises a ball valve built into the intake line. <IMAGE>

Description

784 - C/Schi - 2 - 22.10.81784 - C / Schi - 2 - 10/22/81

Die Erfindung betrifft einen Schraubenverdichter mit einem Drosselorgan zur Regelung des Volumenstromes.The invention relates to a screw compressor with a throttle element for regulating the volume flow.

Es ist bekannt, zur stufenlosen Regelung des Volumenstroms von Schraubenverdichtern entweder direkt im Gehäuse eingebaute Schieber oder in der Saugleitung des Vereichters eingebaute Drosselklappen vorzusehen. Die im Gehäuse eingebauten Schieber (z. B. CH-PS 386 608) erfordern einen sehr komplizierten Aufbau des Gehäuses.It is known for the continuous regulation of the volume flow of Screw compressors either directly built into the housing or built into the suction line of the compressor Provide throttle valves. The slides built into the housing (e.g. CH-PS 386 608) require a very complicated structure of the housing.

Als Drosselventile werden üblicherweise Drosselklappen verwendet, deren Klappenblätter von Drehhebeln verstellt werden, so daß zwischen dem geschlossenen und geöffneten Querschnitt alle Zwischenstellungen eingestellt werden können. Zur Betätigung der Drehhebel dienen pneumatische, elektrische oder hydraulische Stellantriebe (Stellzylinder), die vom jeweiligen Ausgangsdruck (Stelldruck) von Proportional reg!ern beaufschlagt werden.Throttle valves are usually used as throttle valves, whose flap blades are adjusted by rotary levers, so that between the closed and open cross-section all Intermediate positions can be set. To operate the Rotary levers are used pneumatically, electrically or hydraulically Actuators (actuating cylinders) that depend on the respective outlet pressure (Signal pressure) can be acted upon by proportional regulators.

Bei der Bemessung einer Drosselklappe ist man bestrebt, die Ansaugverluste bei Vollförderung des Verdichters gering zu halten, indem man einen genügend großen Querschnitt wählt, so daß die Luftgeschwindigkeit darin nicht mehr als etwa 30 m/sec beträgt.When dimensioning a throttle valve, the aim is to achieve the Intake losses with full delivery of the compressor are low hold by choosing a sufficiently large cross-section so that the air velocity in it does not exceed about 30 m / sec amounts to.

Das Regel verhalten einer solchen Drosselklappe ist in der beigefügten Fig. 1 durch eine gekrümmte Kennlinie K dargestellt. Auf der Ordinatenachse sind die Stel!winkelwerte eingetragen. Die Kennlinie weicht sehr stark von der linear verlaufenden Ideallinie I ab. Dadurch kommt es in dem Regelkreis sehr häufig zu Schwingungen, die nur sehr schwer zu dämpfen sind. Sie können so stark werden, daß lediglich eine Auf-Zu-Regelung verwendet werden kann.The general behavior of such a throttle valve is attached 1 represented by a curved characteristic curve K. on The position angle values are entered on the ordinate axis. the The characteristic curve deviates very strongly from the linear ideal line I from. As a result, it occurs very frequently in the control loop Vibrations that are very difficult to dampen. They can become so strong that only an on-off control is used can.

.-■."-;:- j.:J"O λ 3Η2964.- ■. "-;: - j.:J"O λ 3Η2964

784 - C/Schi - 3 - 22.10.81784 - C / Schi - 3 - 10/22/81

Aufgabe der Erfindung ist es, für Schraubenverdichter ein Drosselorgan zur Regelung des VoIumenstromes zu finden, dessen Kennlinie sich in ihrem Verlauf der Ideallinie eines Steuerventils wesentlich nähert. Das Drosselorgan soll bei verminderten Anschaffungskosten eine zuverlässige Funktion gewährleisten»The object of the invention is to provide a screw compressor To find throttle device for regulating the volume flow, whose Characteristic curve approaches the ideal line of a control valve substantially in its course. The throttle organ is said to be diminished Guarantee a reliable function at acquisition costs »

Die Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst» Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen definiert.The problem is solved by the features of claim 1 » Advantageous further developments of the invention are set out in the subclaims Are defined.

Das erfindungsgemäße Drosselventil in Kükenbauart weist eine besonders günstige Kennlinie auf, die in der beigfügten Zeichnung, Fig. 2, dargestellt ist. Sie kommt der Ideallinie eines Steuerventils wesentlich näher als die Kennlinie einer Drosselklappe.The throttle valve according to the invention in plug design has a particularly favorable characteristic, which is shown in the attached Drawing, Fig. 2, is shown. It comes much closer to the ideal line of a control valve than the characteristic line of a Throttle.

Ein Beispiel eines erfindungsgemäßen Kugelhahns ist in der beigefügten Zeichnung, Fig. 3, dargstellt.An example of a ball valve according to the invention is shown in FIG accompanying drawing, Fig. 3, Dargsteller.

In den miteinander verschraubten Gehäuseteilen 1 und 2 ist das kugelförmige Küken 3 drehbar zwichen den Dichtringen 5 gelagert. Mit Hilfe eines Drehhebels 10, der über Muttern 8 und 9 mit einer mit einem Gewinde versehenen Spindel 4 drehfest verbunden ist, wird der Ventil körper (Küken 3) um die Spindel achse gedreht. Durch eine Stopfbuchsenpackung und ein Druckstück 7 wird die Spindel 4 nach außen abgedichtet.In housing parts 1 and 2 that are screwed together, this is the case spherical chicks 3 rotatably mounted between the sealing rings 5. With the help of a rotary lever 10, the nuts 8 and 9 with a threaded spindle 4 is rotatably connected, the valve body (plug 3) is rotated about the spindle axis. The spindle 4 is sealed from the outside by a stuffing box packing and a pressure piece 7.

Serienmäßig hergestellte Kugelhähne oder deren Bauteile lassen sich für den Einsatz als Drosselventil in der Saugleitung von Schraubenverdichtern auch nachträglich mit geringem Aufwand anpassen. Ball valves manufactured in series or their components can be used as a throttle valve in the suction line of Adjust screw compressors retrospectively with little effort.

784 - C/Schi - 4 - 22.10.81784 - C / Schi - 4 - 10/22/81

Beispielsweise kann an dem Betätigungshebel eine Bohrung 13 zur Anbringung von Betätigungsorganen (Gestänge, Bowdenzug) vorgesehen werden. Mit einer entsprechend kallibrierten Dichtung 6 wird der Anpreßdruck der serienmäßig eingebauten Dichtringe 5 so weit verringert, daß eine fast reibungsfreie Drehung des Kükens 3 möglich ist. Durch Einkerbungen 11 oder Bohrungen 12 kann die öffnungs- bzw. Schließcharakteristik der Kennlinienform des Ventils verändert werden.For example, a bore 13 can be used on the actuating lever Attachment of actuators (linkage, Bowden cable) are provided. With an appropriately calibrated seal 6, the contact pressure of the standard built-in sealing rings 5 is reduced so much that an almost frictionless rotation of the Chick 3 is possible. The opening and closing characteristics of the characteristic curve shape can be determined by notches 11 or bores 12 of the valve can be changed.

-f'-f '

LeerseiteBlank page

Claims (3)

: 3142954: 3142954 Mannesmann Aktiengesellschaft 22. Okt. 1981Mannesmann Aktiengesellschaft Oct. 22, 1981 Mannesmannufer 2 21 784 - C/SchiMannesmannufer 2 21 784 - C / Schi DusseldörfDusseldörf SchraubenverdichterScrew compressors PatentansprücheClaims Schraubenverdichter mit einem Drosselorgan zur Regelung des Volumenstromes, dadurch gekennzeichnet, daß das Drosselorgan ein in der Saugleitung des Schraubenverdichters angeordneter Kugel hahn ist.Screw compressor with a throttle device to regulate the volume flow, characterized in that the throttle member is in the suction line of the screw compressor arranged ball valve is. 2. Schraubenverdichter nach Anspruch 1, dadurch gekennzeichnet, daß zwischen dem Gehäuse (2) des Kugelhahns und einem die Kugelhahn-Spindel (4) umgebenden Gehäusedeckel (14) eine entsprechend kallibrierte Dichtung (6) angeordnet ist.2. Screw compressor according to claim 1, characterized in that between the housing (2) of the ball valve and a die Ball valve spindle (4) surrounding the housing cover (14) a correspondingly calibrated seal (6) is arranged. 3. Schraubenverdichter nach Anspruch 1, dadurch gekennzeichnet, daß am Körper (3) des Kugelhahns Einkerbungen (11) und/oder Bohrungen (12) zur Beeinflussung der Kennlinienform des Drosselorgans angeordnet sind.3. Screw compressor according to claim 1, characterized in that the body (3) of the ball valve notches (11) and / or Bores (12) for influencing the shape of the characteristic curve of the throttle element are arranged.
DE19813142964 1981-10-29 1981-10-29 Screw-type compressor Ceased DE3142964A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813142964 DE3142964A1 (en) 1981-10-29 1981-10-29 Screw-type compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813142964 DE3142964A1 (en) 1981-10-29 1981-10-29 Screw-type compressor

Publications (1)

Publication Number Publication Date
DE3142964A1 true DE3142964A1 (en) 1983-05-11

Family

ID=6145148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813142964 Ceased DE3142964A1 (en) 1981-10-29 1981-10-29 Screw-type compressor

Country Status (1)

Country Link
DE (1) DE3142964A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0843116A3 (en) * 1996-11-19 1998-09-30 Stolco Stoltenberg-Lerche GmbH & Co. KG Ball valve with additional flow line
WO2001098698A1 (en) * 2000-06-21 2001-12-27 Zakład Urządzeń Gazowniczych_'gazomet' A spanner for a ball valve
WO2014130280A1 (en) * 2013-02-19 2014-08-28 Illinois Tool Works Inc. Internal combustion engine fluid-metering valve assembly
US11054044B2 (en) * 2018-02-14 2021-07-06 Fisher Controls International Llc Ball valve having a ball valve element with rotation control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773291A (en) * 1970-03-30 1973-11-20 Fischer & Porter Co Ball valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773291A (en) * 1970-03-30 1973-11-20 Fischer & Porter Co Ball valves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RINDER, L. "Schraubenverdichter", Wien, New York, SPRINGER-Verlag., 1979, S. 198,199 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0843116A3 (en) * 1996-11-19 1998-09-30 Stolco Stoltenberg-Lerche GmbH & Co. KG Ball valve with additional flow line
WO2001098698A1 (en) * 2000-06-21 2001-12-27 Zakład Urządzeń Gazowniczych_'gazomet' A spanner for a ball valve
WO2014130280A1 (en) * 2013-02-19 2014-08-28 Illinois Tool Works Inc. Internal combustion engine fluid-metering valve assembly
CN104981594A (en) * 2013-02-19 2015-10-14 伊利诺斯工具制品有限公司 Internal combustion engine fluid-metering valve assembly
US9695734B2 (en) 2013-02-19 2017-07-04 Illinois Tool Works Inc Internal combustion engine fluid-metering valve assembly
CN104981594B (en) * 2013-02-19 2018-02-06 伊利诺斯工具制品有限公司 Explosive motor fluid metering valve module
US11054044B2 (en) * 2018-02-14 2021-07-06 Fisher Controls International Llc Ball valve having a ball valve element with rotation control

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Legal Events

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8110 Request for examination paragraph 44
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