DE19369C - Pressure regulator - Google Patents
Pressure regulatorInfo
- Publication number
- DE19369C DE19369C DENDAT19369D DE19369DA DE19369C DE 19369 C DE19369 C DE 19369C DE NDAT19369 D DENDAT19369 D DE NDAT19369D DE 19369D A DE19369D A DE 19369DA DE 19369 C DE19369 C DE 19369C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- valve
- steam
- pressure regulator
- pressure
- 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.)
- Active
Links
- 210000001503 Joints Anatomy 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G05D16/109—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with two or more pistons acting as a single pressure controller that move together over range of motion during normal operations
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Irons (AREA)
- Control Of Fluid Pressure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
Der Regulator besteht aus zwei mit sehr geringer Reibung in Cylindern gleitenden Kolben. Die beiden Cylinder stehen genau conaxial über einander. Zwischen beiden Kolben ist ein Verschlufskegel angeordnet, der sich gleichzeitig mit dem Kolben hebt und senkt, Fig. 1. Der Verschlufskegel c trennt die beiden Kammern A und B, von denen die obere, A, beispielsweise mit dem Dampfkessel, die untere, B, mit einem Dampfableitungsrohr in Verbindung steht.The regulator consists of two pistons sliding in cylinders with very little friction. The two cylinders are exactly conaxially one above the other. A closure cone is arranged between the two pistons, which rises and lowers simultaneously with the piston, Fig. 1. The closure cone c separates the two chambers A and B, of which the upper one, A, for example with the steam boiler, the lower one, B, communicates with a vapor discharge pipe.
Ist der Regulator genau senkrecht eingeschaltet, so bewegen sich beide Kolben und Verschlufskegel bis zu der Hubbegrenzung α nach unten, und dabei öffnet sich das Ventil vollständig. Der vom Kessel kommende Dampf übt nach allen Seiten einen der Kesselspannung entsprechenden Druck aus. Bei gleich grofsen Kolbendurchmessern würden sich die Kolben nicht bewegen; da jedoch der untere Kolben einen kleineren Durchmesser als der obere hat, so wirkt der Dampfdruck auf' den Unterschied der Kolbenflächen von unten nach oben. Der Dampf sucht also die beweglichen Theile zu heben und das Ventil zu schliefsen, wodurch sich die Spannung in der Kammer B verringert. Dagegen streben Kolben und Ventil durch ihr Gewicht, sich zu senken, wodurch die Spannung des abströmenden Dampfes vergröfsert wird.If the regulator is switched on exactly vertically, both pistons and locking cone move down to the stroke limit α , and the valve opens completely. The steam coming from the boiler exerts a pressure corresponding to the boiler voltage in all directions. If the piston diameters were the same, the pistons would not move; however, since the lower piston has a smaller diameter than the upper one, the vapor pressure acts on the difference in the piston areas from bottom to top. The steam tries to lift the moving parts and to close the valve, whereby the tension in chamber B is reduced. On the other hand, the weight of the piston and valve strive to lower each other, which increases the tension of the steam flowing out.
Sobald der Druck des Dampfes der Kammer B auf den Unterschied der Kolbenflächen gleich dem Gewicht der beweglichen Theile ist,' bleibt das Ventil unbeweglich. Die Veränderungen der Dampfspannungen in der Kammer A sind ohne Einflufs auf das Ventil, da in dieser Kammer der Druck in der Richtung der Bewegungsachse auf das Ventil wirkt und Ventilöffnung und obere Kolbemiäche gleichen ' Querschnitt haben. Durch Aufsetzen von Gewichten auf eine Platte C kann man den Druck des abzuleitenden Dampfes beliebig vermehren. Für eine bestimmte Druckzunahme mufs das Gewicht um so gröfser sein, je gröfser der Unterschied zwischen den Kolbenflächen ist.As soon as the pressure of the steam in chamber B on the difference of the piston areas is equal to the weight of the movable parts, the valve remains immobile. The changes in the vapor tension in chamber A have no influence on the valve, since in this chamber the pressure acts on the valve in the direction of the axis of movement and the valve opening and upper piston surface have the same cross-section. By placing weights on a plate C , the pressure of the steam to be diverted can be increased as desired. For a certain increase in pressure, the greater the difference between the piston areas, the greater the weight.
Soll der durch den Regulator zu erzielende Dampfdruck sehr gering und dabei nahezu constant sein, so kann der untere Kolben wegfallen, wogegen man den oberen Kolben belastet, Fig. 2.Should the vapor pressure to be achieved by the regulator be very low and almost constant at the same time the lower piston can be omitted, whereas the upper piston is loaded, Fig. 2.
Je höher der regelmäfsige Druck des Kesseldampfes ist, desto länger müssen die Kolben sein, die sehr genau eingepafst werden müssen. Durch Anbringung einer genügenden Anzahl von Fugen in denselben erzielt man die erforderliche Dichtigkeit, ohne das freie Spiel der Kolben zu beeinträchtigen.The higher the regular pressure of the boiler steam, the longer the pistons have to be that have to be set in very precisely. By attaching a sufficient number of joints in the same one achieves the required tightness without the free play of the To affect the piston.
Der Regulator kann für Wasser und Dampf verwendet werden. ' .;: The regulator can be used for water and steam. '. ;:
Claims (2)
Publications (1)
Publication Number | Publication Date |
---|---|
DE19369C true DE19369C (en) |
Family
ID=296188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT19369D Active DE19369C (en) | Pressure regulator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19369C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10900505B2 (en) | 2018-02-28 | 2021-01-26 | Jungheinrich Aktiengesellschaft | Line rupture safeguard for a hydraulic cylinder |
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0
- DE DENDAT19369D patent/DE19369C/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10900505B2 (en) | 2018-02-28 | 2021-01-26 | Jungheinrich Aktiengesellschaft | Line rupture safeguard for a hydraulic cylinder |
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