DE737665C - Valve with two shut-off devices that are adjusted by a common spindle and close one after the other - Google Patents
Valve with two shut-off devices that are adjusted by a common spindle and close one after the otherInfo
- Publication number
- DE737665C DE737665C DEK138463D DEK0138463D DE737665C DE 737665 C DE737665 C DE 737665C DE K138463 D DEK138463 D DE K138463D DE K0138463 D DEK0138463 D DE K0138463D DE 737665 C DE737665 C DE 737665C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- shut
- devices
- adjusted
- slide
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/267—Combination of a sliding valve and a lift valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
Description
Ventil mit zwei von einer gemeinsamen Spindel verstellten, nacheinander schließenden . Absperrvorrichtungen Die Er-findung bezieht sich auf ein Ventil, das zwei von einer gemeinsamen Spindel verstellte und nacheinander scheßende Absperrvorrichtungen besitzt. Die bekannten Vorrichtungen dieser Art haben den Zweck, eiene sichere Albdichtung bei geschlossenem Ventil zu erreichen und sind ohne Entlastung ausgeführt, so daß sie nur für kleine Querschnitte mit entsprechend geringen Verstell-, kräften verwendet werden können. Erfindungsgemäß ist die zuletzt schließende Absperrvorrichtung als entlastetes Ventil und die zuerst schließende Vorrchtung als Schieber ausgebildet, wobei der Schneber zwischen dem Ventilteller und der Entlastungsfläche des Ventils angeordnet ist.Valve with two adjusted by a common spindle, one after the other closing. Shut-off devices The invention relates to a valve, the two shut-off devices adjusted by a common spindle and closing one after the other owns. The known devices of this type have the purpose of a secure Alb seal to achieve with the valve closed and are designed without relief, so that it is only used for small cross-sections with correspondingly low adjustment forces can be. According to the invention, the shut-off device closing last is as Relieved valve and the device that closes first designed as a slide, wherein the Schneber between the valve disc and the relief surface of the valve is arranged.
Der Vorteil dieser Ausführung besteht darin, daß für die Anordnung der beiden Absperrvörrichtungen eine außerordentlich geringe Bauhöhe notwendig ist, wodurch sich die Herstellung und der Einbau des Ventils wesentlich vereinfacht, Die Erfindung ist besonders für Sicherheitsventile, von - Bedeutung, die erfahrungsgemäß sehr schwer dicht zu halten sind. Dieser Nachteil wird durch eine weitere Ausbildung des Ventils beseitigt, die darin besteht , daß der Ventilteller der zuletzt schleßenden Absperrvorrichtung 'vor dem Öffnen des Schiebers eine in dem gemeinsamen Gehäuse vorgesehene Kammer, die den Teller gegen den Strom des Mediums schützt; zurückgezogen wird.The advantage of this design is that for the arrangement the two shut-off devices require an extremely low overall height, which significantly simplifies the manufacture and installation of the valve, The invention is particularly important for safety valves, which experience has shown are very difficult to keep tight. This disadvantage is increased by further training of the valve is eliminated, which consists in the fact that the valve head is the last to close Shut-off device 'in front of the opening of the slide one in the common housing provided chamber that protects the plate against the flow of the medium; withdrawn will.
In den Abb. i bis 4 sind Ausführungsbeispiele der Erfindung dargestellt Bei dem in den Abb. I und z dargestellten Reduzierventil sind der Teller des Ventils mit z, die Entlastungsfläche des Ventils reit 2 und der Schieber reit 3 bezeicunet. Diese Teile sind aus einem Stuck gearbeitet und werden durch die gemeinsame Spindel 4 verstellt. Der Druck des durch ,das Ventil strömenden Druckmittels, z. B. Dampf, wirkt auf die Unterseite des Kolbens 5 und drückt diese nach oben. An den Hebel, 6 greift ein nicht eisgezeichnetes Gewicht an, das den Dampfdruck hinter dem Ventil bestimmt.In Figs. I to 4 embodiments of the invention are shown In the case of the reducing valve shown in Figs. I and z, the poppet is the valve with z, the relief area of the valve reit 2 and the slide reit 3 denoted. These parts are made from one piece and are shared by the spindle 4 adjusted. The pressure of the pressure medium flowing through the valve, e.g. B. steam, acts on the underside of the piston 5 and pushes it upwards. On the lever 6 attacks a weight, not shown in ice, which is the vapor pressure behind the valve certainly.
Sinkt der Druck hinter dem Ventil, so verringert sich der auf die Untierseite des Kolbens 5 wirkende Diruck. Der Hebel 6 drückt den Schieber 3 nach unten, so daß der Eintrittsquerschnitt 7 stärker geöffnet wird.If the pressure behind the valve drops, the pressure on the decreases Underside of the piston 5 acting Diruck. The lever 6 pushes the slide 3 afterwards below, so that the inlet cross section 7 is opened more.
Das Ventil kann durch das Handrad 8 geschlossen werden, indem die Teile I, z und 3 durch die Ventilspindel 4 hochgezogen werden, wobei- zuerst der Schieber 3 den EintTittsquerschnitt 7 #vollständig abschließt und hierauf die Teiler x und 2 des Ventils auf ihre Sitzre gedrückt -werden. Der Schieber 3 besitzt eine Überdeckung, sö daß die Teiller I und 2 des Ventils bereits voll geöffnet sind, wenn die Öffnung des Schiebers 3 beginnt.The valve can be closed by the handwheel 8 by the Parts I, z and 3 are pulled up through the valve spindle 4, the first being the Slide 3 completely closes the inlet cross section 7 # and then the dividers x and 2 of the valve are pressed onto their seat. The slider 3 has an overlap, so that parts I and 2 of the valve are already full are open when the opening of the slide 3 begins.
In den Abb.3 und 4 ist ein Sicherheitsventil dargestellt. Der Ventilteller ist mit 2I, die Entlastungsfläche mit 22 und zuletzt die zuerst schließende und als Schieber ausgebildete Absperrvorrichtung mit 23 bezeichet. Der Flansch 28 ist an den Kessel angeschlossen, während der Flansch 29 in die freie Atmosphäre führt.A safety valve is shown in Figures 3 and 4. The valve disc is with 2I, the relief area with 22 and finally the first closing and Shut-off device designed as a slide is designated by 23. The flange 28 is connected to the boiler, while the flange 29 leads to the open atmosphere.
In dein Gehäuse des Sicherheitsventils ist eine Kammer 30 vorgesehen, in die der teller 2I hochgezogen wird, bevor der Schieber 23 den Austrittsquerschnitt 27 des Sicherheitsventils freigibt. Dler Ventilteller 2I liegt also außerhalb des Dampfstromes, der in Abb, 4 durch Pfeile gekennzeichnet ist.A chamber 30 is provided in the housing of the safety valve, into which the plate 2I is pulled up before the slide 23 closes the outlet cross-section 27 of the safety valve releases. The valve disk 2I is therefore outside the Steam flow, which is marked in Fig, 4 by arrows.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK138463D DE737665C (en) | 1935-06-30 | 1935-06-30 | Valve with two shut-off devices that are adjusted by a common spindle and close one after the other |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK138463D DE737665C (en) | 1935-06-30 | 1935-06-30 | Valve with two shut-off devices that are adjusted by a common spindle and close one after the other |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE737665C true DE737665C (en) | 1943-07-19 |
Family
ID=7249129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK138463D Expired DE737665C (en) | 1935-06-30 | 1935-06-30 | Valve with two shut-off devices that are adjusted by a common spindle and close one after the other |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE737665C (en) |
-
1935
- 1935-06-30 DE DEK138463D patent/DE737665C/en not_active Expired
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