DE283612C - - Google Patents
Info
- Publication number
- DE283612C DE283612C DENDAT283612D DE283612DA DE283612C DE 283612 C DE283612 C DE 283612C DE NDAT283612 D DENDAT283612 D DE NDAT283612D DE 283612D A DE283612D A DE 283612DA DE 283612 C DE283612 C DE 283612C
- Authority
- DE
- Germany
- Prior art keywords
- filling
- flow
- control
- steam
- line
- 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
- 238000010586 diagram Methods 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims 1
- 210000000056 organs Anatomy 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/10—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating characterised by the engine exhaust pressure
- F01K7/12—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating characterised by the engine exhaust pressure of condensing type
- F01K7/14—Control means specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Control Of Fluid Pressure (AREA)
- Control Of Turbines (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei allen Dampfmaschinen mit Gegendruck, beispielsweise bei Verbundmaschinen mit Aufnehmerdampfentnahme, zeigt sich der Übelstand, daß bei kleinen Füllungen im Diagramm infolge zu weitgehender Expansion eine Schleife entsteht, welche, da sie unter der Gegendrucklinie verläuft, eine negative Arbeitsfläche begrenzt. Je kleiner die Füllung wird, um so größer wird die Schleife und damit derIn all steam engines with back pressure, e.g. in compound machines with absorption steam extraction, shows the disadvantage that with small fillings in the diagram a loop due to excessive expansion which, as it runs under the counterpressure line, creates a negative work surface limited. The smaller the filling, the larger the loop and thus the
ίο Arbeitsverlust.ίο Loss of work.
Es ist nun zwar bekannt, daß man für jede Füllung die günstigste Vorausströmung bestimmen und an der Auslaßsteuerung in bekannter Weise festlegen kann; doch haben alle bisher bekannten Vorrichtungen zur Vornähme dieser Maßregel den Mangel, daß die Auslaßsteuerung sich nicht jeder noch so geringen Änderung der Füllung anschließen, kann.It is now known that the most favorable advance flow is required for every filling can determine and set on the outlet control in a known manner; but have all previously known devices for making this measure have the defect that the Exhaust control does not follow every change in the filling, no matter how small, can.
Diese Aufgabe löst die vorliegende Erfindung dadurch, daß sie die Auslaßsteuerung unter den Einfluß des Reglers der Einlaßsteuerung setzt, und zwar derart, daß bei allen Füllungen die Vorausströmung stets dann eingeleitet wird, wenn die Expansionslinie des Dampfdiagrammes die Gegendrucklinie schneidet. The present invention achieves this object by providing exhaust control sets under the influence of the regulator of the inlet control, in such a way that at all fillings the pre-flow is always initiated when the expansion line of the Steam diagram intersects the back pressure line.
In der beiliegenden Zeichnung stelltIn the accompanying drawing represents
Fig. ι ein Diagramm von einer \^erbundmaschine ohne die neue Vorrichtung,Fig. Ι a diagram of a bundle machine without the new device,
Fig. 2 ein Diagramm, genommen an einer Maschine mit der neuen Vorrichtung, dar.Fig. 2 is a diagram taken on a machine with the new device.
Ein Ausführungsbeispiel erhellt aus der Fig. 3·An exemplary embodiment is evident from FIG.
Der Regler α beeinflußt durch den an seiner Muffe angreifenden Hebel a1 und die Stange b das Einlaßventil und damit die Füllung. Der andere Hebel α1 steuert mittels der Zugstange b1 und des Gestänges c den Servomotor d. Dieser greift an den Winkelhebel e an, welcher durch das Gestänge h, f, g die Vorausströmung an der Auslaßsteuerung verändert. Der Tiefstellung S^1 des Reglers entspricht eine große Füllung und eine kleine Vorausströmung, der Hochstellung Si2 eine kleine Füllung und große Vorausströmung.The regulator α influences the inlet valve and thus the filling through the lever a 1 acting on its sleeve and the rod b. The other lever α 1 controls the servo motor d by means of the pull rod b 1 and the linkage c. This acts on the angle lever e , which changes the pre-flow at the outlet control through the linkage h, f, g. The lower position S ^ 1 of the controller corresponds to a large filling and a small advance flow, the upper position Si 2 corresponds to a small filling and a large advance flow.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE283612C true DE283612C (en) |
Family
ID=539170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT283612D Active DE283612C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE283612C (en) |
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- DE DENDAT283612D patent/DE283612C/de active Active
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