DE916375C - Gate valve - Google Patents

Gate valve

Info

Publication number
DE916375C
DE916375C DEC3354A DEC0003354A DE916375C DE 916375 C DE916375 C DE 916375C DE C3354 A DEC3354 A DE C3354A DE C0003354 A DEC0003354 A DE C0003354A DE 916375 C DE916375 C DE 916375C
Authority
DE
Germany
Prior art keywords
plates
shut
gate valve
arise
valve according
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
Application number
DEC3354A
Other languages
German (de)
Inventor
Willy Meyer
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.)
Huels AG
Original Assignee
Chemische Werke Huels 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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to DEC3354A priority Critical patent/DE916375C/en
Application granted granted Critical
Publication of DE916375C publication Critical patent/DE916375C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/12Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
    • F16K3/14Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Description

In Höchstdruekkraftwerken werden vielfach Keilschieber mit beweglichen Absperrplatten verwendet, bei denen die Schließkraft exzentrisch angreift. Dia beim Schließen dieser Schieber der Anpreßdruck auf die Absperrplatten ein Drehmoment ausübt, ergibt sich eine ungleichmäßige Anpreßkraft. Außerdem ist zum Ausgleich von Abnutzungen keine Nachstellmöglichkeit vorhanden. Es besteht somit ein erhebliches Bedürfnis nach einem einfachen, betriebssicheren und einwandfrei dichten Absperrschieber. Diie nachstehend beschriebene Konstruktion erfüllt diese Anforderungen,. Erfindungsgemäß wird die durch die Spindel eingeleitete Schließbewegung über ein zylindrisches, in einem Korb an der Spindel senkrecht zur Schließrichtung verschieblich gelagertes Druckstück mit sphärischen, konkaven oder konvexen Diruckflächen zentrisch auf die Absperrplatten Übertragen.In Höchstdruekkraftwerke, wedge valves with movable ones are often used Shut-off plates are used in which the closing force acts eccentrically. Slide at When this slide closes the contact pressure on the shut-off plates creates a torque exerts, there is an uneven contact pressure. Also is to compensate There is no adjustment option for wear and tear. There is thus a considerable Need for a simple, reliable and perfectly tight gate valve. The construction described below fulfills these requirements. According to the invention the closing movement initiated by the spindle is controlled by a cylindrical, in a basket on the spindle perpendicular to the closing direction Pressure piece with spherical, concave or convex pressure surfaces centered on the Transfer barrier plates.

In Fig. r ist der Absperrschieber im Längsschnitt und in Fig.2 in einem Grundrißquerschnitt dargestellt.In Fig. R the gate valve is in longitudinal section and in Fig. 2 in shown in a plan cross-section.

Der Korb b bildet mit dem Druckstück c ein Element, das die :eingeleitete Schließbewegung direkt zentrisch überträgt, im Gegensatz zu bekannten Konstruktionen, bei denen die eingeleitete Bewegung z. B. durch den Korb auf einen angedrehten Zapfen der Absperrplatten durch Linienberührung exzentrisch bis zur Schließstellung übertragen wird, worauf erst in der Endstellung die Anpressung durch eine als Widerlager eingelegte Kugel erfolgt. Eine gleichmäßige Anpressung der beiden Absperrplattend wird dadurch gewährleistet, daß das Druckstück c mit geringer spezifischer Flächenpressung im Korb b axial verschiebbar angeordnet ist. Durch geteilte Ausführung des Druckstücks c können Diifferenzen, die durch das Nacharbeiten der Dichtflächen an den Absperrplattend oder an den Dichtringen e entstehen oder bei der Herstellung aufgetretene Ungenauigkeiten durch Zwischenlegen von Blechen ausgeglichen werden: Die Absperrplatten d können durch Schraubenfund das zweiteilige Druckstück c durch Klammern g (vgl. Fig. z) oder durch andere Befestigungsmöglichkeiten derart miteinander verbunden werden, daß :eine bewegliche Einstellmöglichkeit der Absperrplatten d gewährleistet bleibt, jedoch diese Teile mit dem Korb b den Charakter eines ungeteilten Schieberkeiles erhalten. Dadurch wird erreicht, daß die Dichtflächen beim Öffnen und Schließen nicht aufeinandergleiten, so daß ein frühzeitiges Undichtiverden des Absperrschiebers vermieden wird.The basket b forms with the pressure piece c an element that the: initiated Directly centrically transmits closing movement, in contrast to known constructions, where the initiated movement z. B. through the basket on a turned pin of the shut-off plates eccentrically to the closed position by touching the lines is, whereupon only in the end position the pressure by an inserted as an abutment Ball takes place. This ensures that the two shut-off plates are pressed evenly ensures that the pressure piece c with a low specific surface pressure in the Basket b is arranged to be axially displaceable. Due to the split design of the pressure piece c there may be differences caused by reworking the sealing surfaces on the shut-off plates or on the sealing rings e or inaccuracies that occurred during manufacture be compensated by placing sheets in between: The shut-off plates d can the two-part pressure piece c through brackets g (see Fig. z) or are connected to one another by other fastening options, that: a movable adjustment possibility of the shut-off plates d remains guaranteed, However, these parts with the basket b have the character of an undivided valve wedge obtain. This ensures that the sealing surfaces when opening and closing do not slide on each other, so that the gate valve will leak prematurely is avoided.

Claims (3)

PATENTANSPRÜCHE: z. Absperrschieber mit zwei beweglichen Absperrplatten, dadurch gekennzeichnet, daß die durch die Spindel eingeleitete Schließkraft über ein zylindrisches, im Korb senkrecht zur Spindelrichtung verschiebbar gelagertes Druckstück mit sphärischen Druckflächen zentrisch auf die Absperrplatten übertragen wird. PATENT CLAIMS: e.g. Gate valve with two movable shut-off plates, characterized in that the closing force introduced by the spindle over a cylindrical one that can be displaced in the basket perpendicular to the spindle direction Transfer the pressure piece with spherical pressure surfaces centrally onto the shut-off plates will. 2. Absperrschieber nach Anspruch r, dadurch gekennzeichnet, daß das Diruckstück (e) geteilt ausgeführt ist, so daß Differenzen, die beim Nacharbeiten der Dpchtfläch:en an den Absperrplatten (d) oder an den Dichtringen (8) oder durch Herstellungsungenauigk eiten entstehen, durch Einlegen von Blechen in die Teilfuge ausgeglichen werden können. 2. Gate valve according to claim r, characterized in that the Diruckstück (e) is carried out divided, so that differences that arise when reworking the Dpchtfläche: en on the shut-off plates (d) or on the sealing rings (8) or due to manufacturing inaccuracy The edges that arise can be compensated for by inserting sheet metal into the joint can. 3. Absperrschieber nach Anspruch 2, dadurch gekennzeichnet, daß die Absperrplatten (d) und die zweiteilige Druckplatte (c) durch Schrauben (f) und durch Klammern (g) oder durch andere Befestigungsmöglichkeiten beweglich miteinander verbunden sind. Angezogene Druckschriften: Deutsche Patentschriften Nr. 462 444, 474 901 und 642 546.3. Gate valve according to claim 2, characterized in that the shut-off plates (d) and the two-part pressure plate (c) are movably connected to one another by screws (f) and by brackets (g) or by other fastening options. Cited publications: German Patent Specifications Nos. 462 444, 474 901 and 642 546.
DEC3354A 1950-10-31 1950-10-31 Gate valve Expired DE916375C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC3354A DE916375C (en) 1950-10-31 1950-10-31 Gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC3354A DE916375C (en) 1950-10-31 1950-10-31 Gate valve

Publications (1)

Publication Number Publication Date
DE916375C true DE916375C (en) 1954-08-09

Family

ID=7013045

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC3354A Expired DE916375C (en) 1950-10-31 1950-10-31 Gate valve

Country Status (1)

Country Link
DE (1) DE916375C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046430B (en) * 1954-12-06 1958-12-11 Hans Weber Dipl Ing Holding device for slide plates of gate valves
DE1101079B (en) * 1958-03-19 1961-03-02 Westark G M B H Armaturenfabri Gate valve with two wedge-shaped, rotating and swiveling arranged gate valves

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462444C (en) * 1928-07-11 Kuhlmann Akt Ges W Wedge gate valve with double plates
DE474901C (en) * 1925-10-06 1929-04-13 Michel Autier Parallel slide
DE642546C (en) * 1934-10-31 1937-03-08 Schaeffer & Budenberg G M B H Gate valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462444C (en) * 1928-07-11 Kuhlmann Akt Ges W Wedge gate valve with double plates
DE474901C (en) * 1925-10-06 1929-04-13 Michel Autier Parallel slide
DE642546C (en) * 1934-10-31 1937-03-08 Schaeffer & Budenberg G M B H Gate valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046430B (en) * 1954-12-06 1958-12-11 Hans Weber Dipl Ing Holding device for slide plates of gate valves
DE1101079B (en) * 1958-03-19 1961-03-02 Westark G M B H Armaturenfabri Gate valve with two wedge-shaped, rotating and swiveling arranged gate valves

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