DE804635C - Two-stage pressure reducer - Google Patents
Two-stage pressure reducerInfo
- Publication number
- DE804635C DE804635C DEP32179D DEP0032179D DE804635C DE 804635 C DE804635 C DE 804635C DE P32179 D DEP32179 D DE P32179D DE P0032179 D DEP0032179 D DE P0032179D DE 804635 C DE804635 C DE 804635C
- Authority
- DE
- Germany
- Prior art keywords
- stage
- pressure
- membrane
- pressure reducer
- space
- 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
- G05D16/0402—Control of fluid pressure without auxiliary power with two or more controllers mounted in series
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Reciprocating Pumps (AREA)
Description
In einem zweistufigen Druckminderer wird in der ersten Stufe der Vordruck grob auf einen Zwischendruck entspannt, der dann in dem die zweite Stufe bildenden Hauptdruckminderer weiter auf den Arbeitsdruck entspannt wird. Der durch die Vorstufe hergestellte Zwischendruck muß wesentlich über dem Arbeitsdruck liegen, das bedingt bei größeren Arbeitsdruckänderungen auch ein Nachstellen der ersten Stufe des Druckminderers. Außerdem muß die Belastungsfeder der Membran der ersten Stufe sehr stark sein, so daß die Membran unter einem einseitigen hohen Druck steht, wenn das Ventil nicht in Betrieb ist.In a two-stage pressure reducer, the first stage is the pre-pressure roughly relaxed to an intermediate pressure, which then forms the second stage Main pressure reducer is further relaxed to the working pressure. The one through the prepress produced intermediate pressure must be significantly above the working pressure, which requires in the case of larger changes in working pressure, readjustment of the first stage of the pressure reducer. In addition, the loading spring of the diaphragm of the first stage must be very strong, so that the membrane is under high pressure on one side when the valve is not is in operation.
Diese Nachteile werden durch die Erfindung beseitigt. Die Erfindung besteht darin, daß die Membran der ersten Stufe durch den Enddruck der zweiten Stufe belastet wird. Da sich also der Enddruck der zweiten Stufe zu dem von derBelastungsfeder ausgeübten Druck addiert, kann die Druckfeder wesentlich leichter gehalten werden, und die Membran wird nicht so hoch beansprucht. Außerdem ist bei übergang zu einem höheren Enddruck des Druckminderers ein Nachstellen der Druckfeder der ersten Stufe nicht mehr erforderlich.These disadvantages are eliminated by the invention. The invention consists in that the membrane of the first stage by the final pressure of the second stage is charged. Since the final pressure of the second stage is that of the loading spring the pressure exerted is added, the compression spring can be held much more easily, and the membrane is not stressed as much. In addition, when transitioning to a higher final pressure of the pressure reducer readjustment of the compression spring of the first stage not necessary anymore.
Die Zeichnung zeigt im senkrechten Schnitt in vereinfachter Darstellung ein Ausführungsbeispiel eines Druckminderers, bei dem beide Stufen in einem gemeinsamen Gehäuse liegen.The drawing shows a simplified representation in vertical section an embodiment of a pressure reducer in which both stages in a common Housing lie.
In dem Gehäuse i des Druckminderers sind die Entspannungsdüse 2 mit dem von einer Membran 4 gesteuerten Ventil 3 der ersten Stufe und die Entspannungsdüse 5 mit dem von einer Membran 7 gesteuerten Ventil 6 der zweiten Stufe angeordnet. Das durch den Eintrittskanal 8 einströmende Gas wird an der Düse 2 grob auf einen Zwischendruck entspannt und gelangt in den durch die Membran 4 abgeschlossenen Raum 9, von dem ein Kanal io über das Ventil 6 führt. In der Düse 5 wird es auf den Enddruck entspannt, gelangt in den von der Membran 7 abgeschlossenen Raum 12 und geht durch den Austrittskanal 13 zur Verbrauchsleitung.The expansion nozzle 2 is in the housing i of the pressure reducer the valve 3 of the first stage controlled by a membrane 4 and the expansion nozzle 5 arranged with the valve 6 controlled by a membrane 7 of the second stage. The gas flowing in through the inlet channel 8 is roughly reduced to one at the nozzle 2 Intermediate pressure relaxes and reaches the space enclosed by membrane 4 9, of which a channel io leads via valve 6. The final pressure is reached in the nozzle 5 relaxed, arrives in the space 12 closed off by the membrane 7 and passes through the outlet channel 13 to the consumption line.
Die Membran 7 wird durch einen Deckel 14 gehalten, der die Belastungsfeder 15 aufnimmt. Die Druckfeder 16 der ersten Stufe liegt im Raum 12, in dem der Enddruck der zweiten Stufe herrscht. Eine sie aufnehmende und die Membran 4 festspannende Haube 17 ist gegen den Raum 12 offen, so daß der im Raum 12 herrschende Enddruck der zweiten Stufe auf die Membran 4 einwirkt.The membrane 7 is held by a cover 14, which is the loading spring 15 records. The compression spring 16 of the first stage is located in the space 12 in which the final pressure the second stage prevails. One that receives them and tightens the membrane 4 Hood 17 is open towards space 12, so that the final pressure prevailing in space 12 the second stage acts on the membrane 4.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP32179D DE804635C (en) | 1949-01-22 | 1949-01-22 | Two-stage pressure reducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP32179D DE804635C (en) | 1949-01-22 | 1949-01-22 | Two-stage pressure reducer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE804635C true DE804635C (en) | 1951-04-26 |
Family
ID=7372634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP32179D Expired DE804635C (en) | 1949-01-22 | 1949-01-22 | Two-stage pressure reducer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE804635C (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003988B (en) * | 1952-02-16 | 1957-03-07 | Knapsack Ag | Pressure regulators, especially for vehicles powered by cylinder gas |
DE1038937B (en) * | 1952-05-03 | 1958-09-11 | Dipl Br Ing Josef Krieglmeyer | Fine pressure regulator for dispensing systems for serving carbonated beverages under pressure |
DE1078397B (en) * | 1954-12-22 | 1960-03-24 | Total Foerstner & Co | Two-stage pressure reducing valve |
DE976862C (en) * | 1952-10-23 | 1964-06-18 | Frank Sche Eisenwerke Ag | Control and shut-off valve for gas burners, especially for liquid gas |
DE2400280A1 (en) * | 1974-01-04 | 1975-07-17 | Gok Gmbh & Co Kg | Adjustable pressure regulator with spiral thrust piece - has pitch of spiral corresponding to spring excursion for adjustment |
FR2719677A1 (en) * | 1994-05-03 | 1995-11-10 | Sassier Pierre Henri | High pressure reduction valve with metal bellows |
WO2018106547A1 (en) | 2016-12-05 | 2018-06-14 | Blacoh Fluid Controls, Inc. | Flow and pressure stabilization systems, methods, and devices |
US11346374B2 (en) | 2020-09-08 | 2022-05-31 | Blacoh Fluid Controls, Inc. | Fluid pulsation dampeners |
US11549523B2 (en) | 2021-04-27 | 2023-01-10 | Blacoh Fluid Controls, Inc. | Automatic fluid pump inlet stabilizers and vacuum regulators |
USD993359S1 (en) | 2018-02-05 | 2023-07-25 | Blacoh Fluid Controls, Inc. | Valve |
-
1949
- 1949-01-22 DE DEP32179D patent/DE804635C/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003988B (en) * | 1952-02-16 | 1957-03-07 | Knapsack Ag | Pressure regulators, especially for vehicles powered by cylinder gas |
DE1038937B (en) * | 1952-05-03 | 1958-09-11 | Dipl Br Ing Josef Krieglmeyer | Fine pressure regulator for dispensing systems for serving carbonated beverages under pressure |
DE976862C (en) * | 1952-10-23 | 1964-06-18 | Frank Sche Eisenwerke Ag | Control and shut-off valve for gas burners, especially for liquid gas |
DE1078397B (en) * | 1954-12-22 | 1960-03-24 | Total Foerstner & Co | Two-stage pressure reducing valve |
DE2400280A1 (en) * | 1974-01-04 | 1975-07-17 | Gok Gmbh & Co Kg | Adjustable pressure regulator with spiral thrust piece - has pitch of spiral corresponding to spring excursion for adjustment |
FR2719677A1 (en) * | 1994-05-03 | 1995-11-10 | Sassier Pierre Henri | High pressure reduction valve with metal bellows |
WO2018106547A1 (en) | 2016-12-05 | 2018-06-14 | Blacoh Fluid Controls, Inc. | Flow and pressure stabilization systems, methods, and devices |
EP3551914A4 (en) * | 2016-12-05 | 2020-05-20 | Blacoh Fluid Controls, Inc. | Flow and pressure stabilization systems, methods, and devices |
US11194352B2 (en) | 2016-12-05 | 2021-12-07 | Blacoh Fluid Controls, Inc. | Flow and pressure stabilization systems, methods, and devices |
USD993359S1 (en) | 2018-02-05 | 2023-07-25 | Blacoh Fluid Controls, Inc. | Valve |
US11346374B2 (en) | 2020-09-08 | 2022-05-31 | Blacoh Fluid Controls, Inc. | Fluid pulsation dampeners |
US11549523B2 (en) | 2021-04-27 | 2023-01-10 | Blacoh Fluid Controls, Inc. | Automatic fluid pump inlet stabilizers and vacuum regulators |
US11828303B2 (en) | 2021-04-27 | 2023-11-28 | Blacoh Fluid Controls, Inc. | Automatic fluid pump inlet stabilizers and vacuum regulators |
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