DE1013293B - Automatic multi-stage regular nozzle - Google Patents
Automatic multi-stage regular nozzleInfo
- Publication number
- DE1013293B DE1013293B DEG18394A DEG0018394A DE1013293B DE 1013293 B DE1013293 B DE 1013293B DE G18394 A DEG18394 A DE G18394A DE G0018394 A DEG0018394 A DE G0018394A DE 1013293 B DE1013293 B DE 1013293B
- Authority
- DE
- Germany
- Prior art keywords
- stage
- control
- mandrel
- steam
- control mandrel
- 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.)
- Pending
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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/12—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
- F16T1/16—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a high-pressure chamber and a low-pressure chamber communicating with one another, i.e. thermodynamic steam chambers
- F16T1/165—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a high-pressure chamber and a low-pressure chamber communicating with one another, i.e. thermodynamic steam chambers of disc type
-
- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/34—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers without moving parts other than hand valves, e.g. labyrinth type
-
- 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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Safety Valves (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft eine mehrstufige Regeldüse, insbesondere zum Ableiten- von Dampfwasser, mit von Stufe zu Stufe zunehmenden engsten Durchflußquerschnitten, mit konischer Erweiterung in jeder Stufe und mit axial verschiebbarem Regeldo'rn. Diese Regeldüsen haben den Nachteil, daß bei ihrer Verwendung zur Ableitung von Dampfwasser1 oder anderen siedendheißen Flüssigkeiten bei stark nachlassendem oder ganz auf hörendem Zufluß von. Flüssigkeit, also beispielsweise des Dampf wassers, ein Dampfdurchschlag entsteht, der unter Umständen untragbar hohe Werte annehmen kann, sofern der Regeldorn in diesem Betriebsfalle nicht in Schließrichtung verstellt wird. Außer entsprechenden Handverstelleinrichtungen sind auch schon selbsttätige Steuerungen zur Betätigung des Regeldoorns vorgeschlagen, beispielsweise Schwimmersteuerungen, die in Abhängigkeit vom Stand des Dampfwasserspiegels, oder thermische Steuerungen, die in Abhängigkeit von der Temperatur der abzuleitenden, Flüssigkeit auf den Regeldorn direkt oder auch indirekt, beispielsweise unter Zwischenschaltung bekannter hydraulischer oder pneumatischer Kraftverstärker, einwirken. Derartige Steuerungen bringen einen erheblichen zusätzlichen baulichen Aufwand und eine verringerte Betriebs-Sicherheit mit sich.The invention relates to a multi-stage regulating nozzle, in particular for discharging steam water, with the narrowest flow cross-sections increasing from stage to stage, with a conical widening in each stage and with an axially displaceable regulating valve. These control nozzles have the disadvantage that, when they are used to discharge steam water 1 or other boiling liquids, the inflow of water drops sharply or stops completely. Liquid, so for example the steam water, a vapor breakthrough occurs, which under certain circumstances can assume unacceptably high values if the control mandrel is not adjusted in the closing direction in this operating case. In addition to appropriate manual adjustment devices, automatic controls for actuating the regulating mandrel have also been proposed, for example float controls that depend on the level of the steam water level, or thermal controls that act on the regulating mandrel directly or indirectly, for example, depending on the temperature of the liquid to be diverted known hydraulic or pneumatic booster, act. Such controls entail considerable additional structural effort and reduced operational safety.
Diese Nachteile sollen nach der vorliegenden Erfindung dadurch vermieden werden,, daß die sich beim Durchfluß von Flüssigkeit, also* beispielsweise Wasser, bzw. von Dampf unterschiedlich einstellenden Zwischendrücke in den einzelnen Düsenstufen direkt zur selbsttätigen Steuerung des Regeldorns ausgenutzt werden. Hierzu wird vorgeschlagen, daß bei einer mehrstufigen Regeldüse der eingangs beschriebenen Bauart die — in Durchfluß richtung gesehen — erste, bzw. die erstem Stufen in Öffnungsrichtung des Regeldorns und die letzte bzw. die letzten Stufen, in Schließrichtung des Regeldorns durchströmt werden,. Verwirklicht wird dies erfindungsgemäß durch, einen zwischen zwei aufeinanderfolgende Stufen derart angeordneten Umführungskanal, daß — in. Durchflußrichtung gesehen — die vor dem Umführungskana! 6 liegende Stufe bzw. Stufen, F1, F2 in Öffnungsrichtung des Regeldorns 1 und die hinter dem Umführungskanal 6 liegende Stufe F3', F3" bzw. Stufen in Schließrichtung des Regeldorns 1 durchströmt werden..According to the present invention, these disadvantages are to be avoided in that the intermediate pressures in the individual nozzle stages, which are different when liquid, for example water, or steam flows through, are used directly for the automatic control of the regulating mandrel. For this purpose, it is proposed that, in a multi-stage control nozzle of the type described at the beginning, the flow should flow through the first or first stages in the opening direction of the regulating mandrel and the last or the last stages in the closing direction of the regulating mandrel - seen in the flow direction. This is achieved according to the invention by a bypass channel arranged between two successive stages in such a way that - seen in the flow direction - the upstream of the bypass channel! 6 lying step or steps, F 1 , F 2 in the opening direction of the control mandrel 1 and the step F 3 ', F 3 " or steps behind the bypass channel 6 in the closing direction of the control mandrel 1.
Ein besonders einfacher Aufbau ergibt sich, nach einem weiteren Erfindungsgedanken,, wenn die letzte Stufe der mehrstufigen Regeldüse in zwei einander parallel geschaltete Stufenhälften von beispielsweise gleichgroßem engstem Durchflußquerschnitt aufgeteilt wird, von denen die eine Stufenhälfte in Öffnungsrichtung und die andere Stufenhälfte in Schließrich- Selbsttätige mehrstufige RegeldüseA particularly simple structure results, according to a further inventive idea, if the last Stage of the multi-stage control nozzle in two parallel-connected stage halves of, for example equally large, narrowest flow cross-section, of which one half of the stage is in the opening direction and the other half of the stage is in the closing direction. Automatic multi-stage control nozzle
Anmelder:Applicant:
Gustav F. Gerdts K. G.,
Bremen, Hemmstr. 130Gustav F. Gerdts KG,
Bremen, Hemmstr. 130
Dr.-Ing. Hans Martin Pape, Bremen-Horn,
ist als Erfinder genannt wordenDr.-Ing. Hans Martin Pape, Bremen-Horn,
has been named as the inventor
tuhg des Regeldorns durchströmt wird. In jedem Falle ist eine derartige Zunahme der druckbelasteten Flächen des Regeldorns von Stufe zu Stufe vorgesehen,, daß der Regeldorn, beim Durchfluß von kalter Flüssigkeit in Öffnungsrichtung und beim Durchströmen von Dampf in Schließrichtung bewegt wird.tuhg of the control mandrel is flowed through. In any case, such an increase is the pressure-loaded Areas of the control mandrel provided from step to step, that the control mandrel, when the flow of cold Liquid is moved in the opening direction and, when steam flows through, in the closing direction.
Dieses soll an einem in der Zeichnung im Längsschnitt schematisch dargestellten beliebigen Ausführungsbeispiel erläutert werden,, wobei zum leichteren Verständnis etwas abgerundete Zahlenwerte zugrunde gelegt werden.This should be based on any exemplary embodiment shown schematically in the drawing in longitudinal section are explained, with slightly rounded figures as a basis for easier understanding be placed.
Die Regeldüse des Ausführungsbeispiels besteht aus drei Stufen,, von denen die beiden ersten.mit den engsten Durchflußquerschnitten F1 und F2 in Öffnungs richtung das Regeldorns 1 durchströmt werden. Die dritte Stufe ist in. zwei einander parallel geschalteten. Stufenhälften mit den beispielsweise gleich großen engsten Querschnitten F3' und F3" aufgeteilt, wobei F3 in Öffnungsrichtung und F3" in Schließrichtung des Regeldorns 1 durchströmt werden, was dadurch bewirkt wird, daß zwischen dem engsten Durchflußquerschnitt F2 der vorletzten, Stufe und dem engsten Durchflußquerschnitt F3" der anschließenden Stufenhälfte der letzten Stufe ein Umführungskanal 6 angeordnet ist.The control nozzle of the embodiment consists of three stages, of which the first two with the narrowest flow cross-sections F 1 and F 2 in the opening direction of the control mandrel 1 are flowed through. The third stage is in two connected in parallel. Step halves with the narrowest cross-sections F 3 'and F 3 "of the same size, for example, with F 3 in the opening direction and F 3 " in the closing direction of the regulating mandrel 1, which is caused by the fact that between the narrowest flow cross-section F 2 of the penultimate, stage and the narrowest flow cross-section F 3 "of the subsequent half of the stage of the last stage, a bypass channel 6 is arranged.
Die Entspannung durch die Regeldüse soll beispielsweise vom Eintrittsdruck P1 — 10 ata auf den Austrittsdruck pi = ί ata erfolgen, mit den Zwischendrücken p2 = 4,9 ata nach dem ersten engsten Querschnitt F1 und p3 = 2,4 ata nach dem zweiten -engsten Querschnitt F2, und zwar beim Durchfluß von. Wasserdampf von Sattdampf temperatur. Jede Stufe hat also in. diesem Beispiel ein überkritisches Druckgefälle zu verarbeiten:, so- daß in allen drei engsten Querschnitten, F1, F2 und F3 = F3' + F3" die gleiche kritische Dampfgeschwindigkeit auftritt. Maßgebend für die Bemessung der engsten, Querschnitte ist also in diesem Beispiel ausschließlich das in ihnen jeweils vorliegende spezifische Dampfvolumen,, das sich ausThe expansion through the control nozzle should, for example, take place from the inlet pressure P 1 - 10 ata to the outlet pressure p i = ί ata, with the intermediate pressures p 2 = 4.9 ata after the first narrowest cross section F 1 and p 3 = 2.4 ata after the second-narrowest cross-section F 2 , namely with the flow of. Water vapor at saturated steam temperature. In this example, each stage has to process a supercritical pressure gradient, so that the same critical steam velocity occurs in all three narrowest cross-sections, F 1 , F 2 and F 3 = F 3 '+ F 3 " the narrowest, cross-sections in this example is exclusively the specific vapor volume present in them, which is made up of
709 656/100709 656/100
Claims (5)
Deutsche Patentschrift Nr. 941 910.In. Considered publications:
German patent specification No. 941 910.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG18394A DE1013293B (en) | 1955-11-16 | 1955-11-16 | Automatic multi-stage regular nozzle |
DE1956G0019773 DE1066591B (en) | 1955-11-16 | 1956-06-05 | MULTI-STAGE REGULATING NOZZLE |
DE1957G0022142 DE1070190B (en) | 1955-11-16 | 1957-05-21 | MULTI-STAGE REGULATING NOZZLE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG18394A DE1013293B (en) | 1955-11-16 | 1955-11-16 | Automatic multi-stage regular nozzle |
DE1956G0019773 DE1066591B (en) | 1955-11-16 | 1956-06-05 | MULTI-STAGE REGULATING NOZZLE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1013293B true DE1013293B (en) | 1957-08-08 |
Family
ID=62487218
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG18394A Pending DE1013293B (en) | 1955-11-16 | 1955-11-16 | Automatic multi-stage regular nozzle |
DE1956G0019773 Pending DE1066591B (en) | 1955-11-16 | 1956-06-05 | MULTI-STAGE REGULATING NOZZLE |
DE1957G0022142 Pending DE1070190B (en) | 1955-11-16 | 1957-05-21 | MULTI-STAGE REGULATING NOZZLE |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1956G0019773 Pending DE1066591B (en) | 1955-11-16 | 1956-06-05 | MULTI-STAGE REGULATING NOZZLE |
DE1957G0022142 Pending DE1070190B (en) | 1955-11-16 | 1957-05-21 | MULTI-STAGE REGULATING NOZZLE |
Country Status (1)
Country | Link |
---|---|
DE (3) | DE1013293B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1120465B (en) * | 1959-07-24 | 1961-12-28 | Gerdts Gustav F Kg | Automatic multi-stage regular nozzle |
DE1122961B (en) * | 1959-12-31 | 1962-02-01 | Gerdts Gustav F Kg | Thermodynamic condensate drain |
US3150677A (en) * | 1961-01-06 | 1964-09-29 | Clark Reliance Corp | Steam trap |
US3170477A (en) * | 1961-08-02 | 1965-02-23 | Yarnall Waring Co | Steam trap |
WO2015191960A1 (en) | 2014-06-13 | 2015-12-17 | Vistadeltek, Llc | High conductance valve for fluids and vapors |
US11248708B2 (en) | 2017-06-05 | 2022-02-15 | Illinois Tool Works Inc. | Control plate for a high conductance valve |
US10364897B2 (en) | 2017-06-05 | 2019-07-30 | Vistadeltek, Llc | Control plate for a high conductance valve |
CN110709633B (en) | 2017-06-05 | 2022-04-22 | 威斯塔德尔特有限责任公司 | Control plate for high conductance valve |
US10458553B1 (en) | 2017-06-05 | 2019-10-29 | Vistadeltek, Llc | Control plate for a high conductive valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941910C (en) * | 1950-11-07 | 1956-04-19 | Gerdts Gustav F Kg | High performance steam trap |
-
1955
- 1955-11-16 DE DEG18394A patent/DE1013293B/en active Pending
-
1956
- 1956-06-05 DE DE1956G0019773 patent/DE1066591B/en active Pending
-
1957
- 1957-05-21 DE DE1957G0022142 patent/DE1070190B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941910C (en) * | 1950-11-07 | 1956-04-19 | Gerdts Gustav F Kg | High performance steam trap |
Also Published As
Publication number | Publication date |
---|---|
DE1066591B (en) | 1959-10-08 |
DE1070190B (en) | 1959-12-03 |
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