DE464991C - Piston valve - Google Patents
Piston valveInfo
- Publication number
- DE464991C DE464991C DEK91862D DEK0091862D DE464991C DE 464991 C DE464991 C DE 464991C DE K91862 D DEK91862 D DE K91862D DE K0091862 D DEK0091862 D DE K0091862D DE 464991 C DE464991 C DE 464991C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- sealing rings
- sealing
- rings
- piston valve
- 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
- 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
- F16K3/262—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 with a transverse bore in the valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
Der Erfindungsgegenstand betrifft eine Verbesserung von Kolbenschieberventilen zum Absperren von Dampf, Gas oder Flüssigkeit, bei welchen der kolbenförmige, mit einer 5 Ouerbohrung versehene Schieberkörper von im Gehäuse angeordneten schmalen, durch ein gelochtes Mittelstück voneinander getrennten Dichtungsringen umschlossen ist und bei welchen zwischen den Ausmündungen der KoI-benbohrung oben und unten bis an die Dichtungsringe heranreichende Weichpackungen angeordnet sind.The subject matter of the invention relates to an improvement of piston slide valves for Shutting off steam, gas or liquid, in which the piston-shaped, with a 5 Ouerbored provided slide body of arranged in the housing narrow, through a perforated center piece is enclosed and which are separate sealing rings between the mouths of the piston bore at the top and bottom up to the sealing rings Approaching soft packs are arranged.
Kolbenschieberventile obenerwähnter Ausführung müssen unten geschlossen sein, weil sonst während des Öffnens und Schließens ein Abströmen des Durchflußmediums nach außen stattfinden würde. Dieser untere Gehäuseabschluß hat aber den Nachteil, daß die sich hier ansammelnde Flüssigkeit bei Frost das Gehäuse sprengt bzw. bei durchfließenden Salzlösungen oder auskristallisierenden Säuren die abgelagerten Kristalle Störungen der Kolbenbewegung hervorrufen können.Piston slide valves of the design mentioned above must be closed at the bottom because otherwise during opening and closing the flow medium will flow out to the outside would take place. This lower housing end has the disadvantage that the here accumulating liquid bursts the housing in case of frost or in the case of saline solutions flowing through or acids that crystallize out, the deposited crystals disturb the piston movement can evoke.
Diese Gefahrenmomente werden durch die vorliegende Erfindung dadurch beseitigt, daß außer den bekannten beiden Dichtungsringen mit Seitenpackung noch ein dritter Dichtungsring ober- oder unterhalb der vorhandenen Dichtungsringe so angeordnet wird, daß sich im geschlossenen Zustand die Kolbenbohrung zwischen zwei Dichtungsringen befindet. These dangers are eliminated by the present invention in that In addition to the two well-known sealing rings with side packing, there is also a third sealing ring is arranged above or below the existing sealing rings that the piston bore in the closed state is located between two sealing rings.
Dieser dritte Dichtungsring verhindert beim Freilegen des zweiten Dichtungsringes durch die öffnung im Kolben 1 den Übertritt des abzusperrenden Mittels nach außen.This third sealing ring prevents exposure of the second sealing ring through the opening in the piston 1, the passage of the agent to be shut off to the outside.
Das Ventilgehäuse kann daher ober- und unterhalb des Kolbens offen sein; der Kolben wird durch das Durchströmmittel in seiner Achsenrichtung nicht und im besonderen nicht einseitig belastet, ein Umstand, der namentlich bei großen Ventilen wegen der gleichmäßigeren und leichteren Beweglichkeit des Kolbens von großer Bedeutung ist. Da das Gehäuse über und unter dem Kolben offen ist, kann sich keine Flüssigkeit im Gehäuse ansammeln, die Gefahr des Einfrierens und der Ablagerung von Kristallen ist beseitigt. In der Zeichnung ist der Erfindungsgegenstand dargestellt, und zwar zeigen Abb. 1 das Ventil mit dem dritten Dichtungsring 10 oberhalb der beiden anderen Ringe. Das Druckzwischenstück 11 überträgt den Preßdruck des Aufsatzes auf die Ringe. Abb. 2 zeigt den dritten Dichtungsring 10 unterhalb der beiden Dichtungsringe. Ring 10 kann auch im Kolben angebracht sein.The valve housing can therefore be open above and below the piston; The piston is not and in particular due to the through-flow medium in its axial direction not burdened on one side, a fact that is particularly important in the case of large valves because of the uniform and easier mobility of the piston is of great importance. There If the housing is open above and below the piston, no liquid can enter the housing accumulate, the risk of freezing and deposition of crystals is eliminated. In the drawing, the subject of the invention is shown, namely Fig. 1 show the Valve with the third sealing ring 10 above the other two rings. That Pressure adapter 11 transmits the pressure of the attachment to the rings. Fig. 2 shows the third sealing ring 10 below the two sealing rings. Ring 10 can also be attached in the piston.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK91862D DE464991C (en) | Piston valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK91862D DE464991C (en) | Piston valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE464991C true DE464991C (en) | 1928-09-01 |
Family
ID=7237231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK91862D Expired DE464991C (en) | Piston valve |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE464991C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972087C (en) * | 1951-04-21 | 1959-05-21 | Rheinhuette Vorm Beck & Co | Gate valve |
| DE3012453A1 (en) * | 1980-03-31 | 1981-10-08 | Lothar 7012 Fellbach Groß | Liquid or gas gate valve - has stepped piston and bore forming three chambers sealed from each other |
-
0
- DE DEK91862D patent/DE464991C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972087C (en) * | 1951-04-21 | 1959-05-21 | Rheinhuette Vorm Beck & Co | Gate valve |
| DE3012453A1 (en) * | 1980-03-31 | 1981-10-08 | Lothar 7012 Fellbach Groß | Liquid or gas gate valve - has stepped piston and bore forming three chambers sealed from each other |
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