DE631136C - Relief device for flap valves operated by spindle drive - Google Patents
Relief device for flap valves operated by spindle driveInfo
- Publication number
- DE631136C DE631136C DEP69934D DEP0069934D DE631136C DE 631136 C DE631136 C DE 631136C DE P69934 D DEP69934 D DE P69934D DE P0069934 D DEP0069934 D DE P0069934D DE 631136 C DE631136 C DE 631136C
- Authority
- DE
- Germany
- Prior art keywords
- spindle drive
- flap
- flap valves
- relief device
- sealing plate
- 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
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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/028—Devices for relieving the pressure on the sealing faces for lift valves with pivoted closure members, e.g. butterfly 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
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
-
- 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
- F16K1/24—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 with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Description
Um Klappenventile mit Spindelantrieb zu öffnen, muß stets eine außergewöhnlich starke Kraft angewendet werden, weil der volle auf der Abdichtplatte liegende Druck überwunden werden muß. Man bringt deshalb bei Klappenventilen vielfach Umleitungen an, die aber, ■ abgesehen von ihren höheren Herstellungskosten, auch die Bedienung des Absperrorgans umständlicher machen. Aus diesen Gründen hat man auf verschiedene Weise auch bereits versucht, den vor dem Öffnen des Ventils notwendigen Druckausgleich ohne Umleitung herbeizuführen, indem man beispielsweise auf die Abdichtplatte noch eine zweite Platte aus elastischem Werkstoff auflegte, die sich von ihrem Sitz leicht entfernen läßt, indem man eigene kleine Entlastungsventile in der Abdichtplatte anbrachte, indem man mehrere Spindeln zur Bedienung verwendete oder indem man durch besondere Systeme von Scharnieren oder Hebern die Abdichtplatte in ihrer Mitte faßte und so mit starker Kraft von ihrem Sitz entfernte. Bei diesen Ausführungsformen müssen vielfach Werkstoffe verwendet werden, die (wie bei der besonderen zweiten elastischen Abdichtplatte) sich nicht für jedes Leitungsmittel eignen, oder es wird neben besonders hochwertigen Werkstoffen eine schwierige und zeitraubende Bearbeitung notwendig.In order to open flap valves with spindle drive, an extraordinarily strong one must always be used Force must be applied because the full pressure on the sealing plate has been overcome must become. For this reason, diversions are often made to flap valves, but these ■ Apart from their higher production costs, also the operation of the shut-off device make it more cumbersome. For these reasons, one has already tried in various ways, the one before opening of the valve to bring about the necessary pressure equalization without diversion, for example by a second plate made of elastic material was placed on the sealing plate, which can be easily removed from its seat using its own small relief valves installed in the sealing plate by using several spindles for operation or by using special Systems of hinges or lifters grabbed the sealing plate in its center and so with removed from her seat with great force. In these embodiments, multiple Materials are used that (as with the special second elastic sealing plate) are not suitable for every line, or it will be next to particularly high quality Difficult and time-consuming machining is necessary.
Der Erfindungsgegenstand löst die Aufgabe, ohne großen Kraftaufwand ein Klappenventil
gegen den vollen Leitungsdruck zu öffnen, auf eine einfachere Weise, wobei er vor allem
keine hohe Beanspruchung der Spindel verlangt. Bei Absperrschiebern wird bei verschiedenen
Erfindungen ein leichtes Öffnen dadurch erzielt, daß sie die Abdichtplatte an
der einen Seite ihres Sitzes von der Abdichtfläche abheben. Durch den auf diese Weise
entstehenden Spalt erfolgt der Druckausgleich. Dieser an sich bekannte Grundgedanke
wird hier auf das Klappenventil angewendet, wobei sich jedoch der Bewegungsmechanismus dadurch von allen bekannten
Konstruktionen unterscheidet, daß ein doppelarmiger Winkelhebel von der Abdichtplatte
vollkommen getrennt im Gehäuse angebracht ist und daß dieser Hebel die Platte einseitig
von ihrem Sitz abkippt, bevor die Spindel bei der Öffnungsbewegung die Platte hochhebt.
. Auf den beiliegenden Zeichnungen ist der E'rfmdungsgegenstand dargestellt, in
Fig. ι das Absperrorgan geschlossen,
Fig. 2 das Absperrorgan bei Beginn des Öffnens mit einpunktierter ganz geöffneter
Abdichtplatte.The subject matter of the invention solves the problem of opening a flap valve against the full line pressure without great expenditure of force, in a simpler way, and above all not requiring high stress on the spindle. In the case of gate valves, easy opening is achieved in various inventions in that they lift the sealing plate off the sealing surface on one side of its seat. The pressure equalization takes place through the gap created in this way. This basic idea, known per se, is applied here to the flap valve, but the movement mechanism differs from all known constructions in that a double-armed angle lever is mounted completely separate from the sealing plate in the housing and that this lever tilts the plate on one side from its seat before the spindle lifts the plate during the opening movement. . The subject of the invention is shown in the accompanying drawings
Fig. Ι the shut-off valve closed,
Fig. 2 the shut-off device at the beginning of opening with a punctured completely open sealing plate.
Um den im Gehäuse G befindlichen Drehpunkt D2 bewegt sich der Plattenhebel P, an dessen Bolzen B die Abdichtplatte A lose befestigt ist. Um den unteren Drehpunkt D des Plattenhebels P bewegt sich ferner der Winkelhebel W, dessen Zveag&Z sich bei geschlossenem Absperrorgan an den Bolzen B anlegt und bei dem zum Öffnen bereiten Absperrorgan an die Rückseite der Abdicht- The plate lever P, to the bolt B of which the sealing plate A is loosely attached, moves around the pivot point D 2 located in the housing G. Around the lower pivot point D of the lever plate P further moves, the angle lever W whose Zveag & Z rests in the closed shut-off device to the bolts B and the shut-off device for opening prepare at the back of the sealing
plattet anstößt and hierdurch Äbdxehtplatte.A und Winkelhebel W zur Wirkung eines starren Körpers verbindet. ;flatly abuts and thereby connects Äbdxehtplatte.A and angle lever W to the effect of a rigid body. ;
Die Entlastungsklinke E ist drehbar lieh um den am Verschlußdeckel V brachten Drehpunkt D1. ^ß The relief pawl E can be rotated around the pivot point D 1 attached to the closure cover V. ^ ß
Beim Öffnen des Absperrorgans wird durch* die nur verschiebbare Steuerspindel S und. deren Verbindung mit den Laschen L der Winkelhebel W um den Drehpunkt D des Plattenhebels P bewegt.When the shut-off device is opened, * the only displaceable control spindle S and. whose connection with the tabs L of the angle lever W moves around the pivot point D of the plate lever P.
Hierbei gleitet die Nase W1 des Winkelhebels W an der schrägen Fläche E2 der Entlastungsklinke E entlang; gleichzeitig drückt aber die Nasef1 der EnÜastungskKnke E an den Vorsprung N der Abdichtplatte A und letztere von ihrem Gehäusesitz, wodurch die Abdichtplatte A durch den so. entstandenen Spalt teilweise von dem Anpressungsdruck befreit wird.Here, the nose W 1 of the angle lever W slides along the inclined surface E 2 of the relief pawl E ; but at the same time presses the nose 1 of the EnÜastungskKnke E on the projection N of the sealing plate A and the latter from its housing seat, whereby the sealing plate A through the so. resulting gap is partially freed from the contact pressure.
Durch Weiterbewegurog der SteuerspindielS· legt sich die Zunge Z des Winkelhebels W an die Rückseite der Abdichtglatte A an. (Fig. 2.}, und durch die hierdurch hergestellte starre Verbindung des Winkelhebels W mit der Abdichtplatte A wird letztere, wie in Fig. 2 punktiert dargestellt, angehoben, während die Entvl'astungsklinke E mit der schrägen Fläche E2 ;-'i§urch ihr Eigengewicht bis zum Verschluß-Sjf|ckelV fällt (Fig. 2 punktiert). Durch die '"*$$ angehobene Abdichtplatte A ist ein vollständig gerader Durchgang gegeben.By moving the control spindle S further, the tongue Z of the angle lever W rests against the back of the sealing smooth A. (Fig. 2.}, and due to the rigid connection of the angle lever W with the sealing plate A , the latter is raised, as shown in dotted lines in Fig. 2, while the relief pawl E with the inclined surface E 2 ; - 'i §urch their own weight until the shutter Sjf | ckelV falls (Fig. 2 lines) by the "'* $$ raised sealing plate a is a completely straight passage added..
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP69934D DE631136C (en) | 1934-09-06 | 1934-09-06 | Relief device for flap valves operated by spindle drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP69934D DE631136C (en) | 1934-09-06 | 1934-09-06 | Relief device for flap valves operated by spindle drive |
Publications (1)
Publication Number | Publication Date |
---|---|
DE631136C true DE631136C (en) | 1936-06-12 |
Family
ID=7391525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP69934D Expired DE631136C (en) | 1934-09-06 | 1934-09-06 | Relief device for flap valves operated by spindle drive |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE631136C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1084999B (en) * | 1956-05-08 | 1960-07-07 | Zimmermann & Jansen Gmbh | Relieved valve with flap-shaped main locking piece and auxiliary locking piece |
DE1170189B (en) * | 1958-07-03 | 1964-05-14 | Separator Ab | Washing releaser for flushing pipes, hoses and other continuous hollow bodies with a washing liquid, in particular washing devices for mechanical milking systems |
CN110307349A (en) * | 2019-07-11 | 2019-10-08 | 无锡市爱德阀业股份有限公司 | A kind of anti-down streaming butterfly valve |
-
1934
- 1934-09-06 DE DEP69934D patent/DE631136C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1084999B (en) * | 1956-05-08 | 1960-07-07 | Zimmermann & Jansen Gmbh | Relieved valve with flap-shaped main locking piece and auxiliary locking piece |
DE1170189B (en) * | 1958-07-03 | 1964-05-14 | Separator Ab | Washing releaser for flushing pipes, hoses and other continuous hollow bodies with a washing liquid, in particular washing devices for mechanical milking systems |
CN110307349A (en) * | 2019-07-11 | 2019-10-08 | 无锡市爱德阀业股份有限公司 | A kind of anti-down streaming butterfly valve |
CN110307349B (en) * | 2019-07-11 | 2024-05-24 | 无锡市爱德阀业股份有限公司 | Backflow-preventing butterfly valve |
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