DE569359C - Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve - Google Patents

Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve

Info

Publication number
DE569359C
DE569359C DEN28118D DEN0028118D DE569359C DE 569359 C DE569359 C DE 569359C DE N28118 D DEN28118 D DE N28118D DE N0028118 D DEN0028118 D DE N0028118D DE 569359 C DE569359 C DE 569359C
Authority
DE
Germany
Prior art keywords
feed
actuates
steam
feed water
feed 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
Application number
DEN28118D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORTHERN EQUIPMENT CO
Original Assignee
NORTHERN EQUIPMENT CO
Publication date
Priority to DEN28118D priority Critical patent/DE569359C/en
Application granted granted Critical
Publication of DE569359C publication Critical patent/DE569359C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/14—Controlling water feed or water level; Automatic water feeding or water-level regulators responsive to thermal expansion and contraction, e.g. of solid elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

Speisewasserregler mit zwei auf einen gemeinsamen, das Speiseventil betätigenden Hebel wirkenden Ausdehnungsrohren Die Erfindung bezieht sich auf Speisewasserregler mit zwei auf einen gemeinsamen, das Speiseventil betätigenden Hebel wirkenden Ausdehnungsrohren, von denen das eine in Abhängigkeit vom Wasserstand und das andere in Abhängigkeit von der Dampfentnahme beeinflußt wird.Feed water regulator with two on one common, the feed valve Actuating Lever Acting Expansion Pipes The invention relates to feed water regulators with two expansion pipes acting on a common lever that actuates the feed valve, one of which is dependent on the water level and the other is dependent is influenced by the steam extraction.

Die bekannten Speisewasserregler dieser Art weisen den Nachteil auf, daß keine Rücksieht auf die Tatsache genommen ist, daß die Ausdehnung und das Zusammenziehen der Ausdehnungsrohre nicht genau proportional der Änderung der Dampfentnahme ist. Nimmt man an, daß in einem gegebenen Augenblick eine verhältnismäßig geringe Dampfentnahme stattfindet und das Ausdehnungsrohr und das Speiseventil so eingestellt sind, daßa ein gleicher oder entsprechender Speisewasserzufluß erfolgt, so wird, wenn die Dampfentnahme wesentlich zunimmt, das Steigen des Wassers nicht in höherem Umfange bewirkt, als tatsächlich erforderlich ist, um das Zusammenziehen des Ausdehnungsrohres auf einen Grad zu bewirken, der genau proportional der Zunahme der Dampfentnahme ist. Diesem Mangel soll nun gemäß der Erfindung dadurch abgeholfen werden, daß man die Durchlaßöffnungen des Speiseventilkolbens derart parabolisch oder annähernd parabolisch ausbildet, daß die mit der Dampfentnahme quadratisch sich ändernde Länge des Ausdehnungsrohres den Zufluß des Speisewassers in gleichem Verhältnis mit der Dampfentnahme regelt. Die Zeichnung stellt eine Ausführungsform des Erfindungsgegenstandes beispielsweise im Schnitt dar.The known feed water regulators of this type have the disadvantage that no consideration is given to the fact that the expansion and contraction of the expansion pipes is not exactly proportional to the change in steam extraction. Assume that at a given moment there is a relatively small amount of steam drawn off takes place and the expansion pipe and the feed valve are adjusted so that a if the same or corresponding feedwater inflow occurs, then if the steam is withdrawn increases substantially, does not cause the water to rise to a greater extent than is actually required to contract the expansion tube to one To effect degree that is exactly proportional to the increase in steam extraction. This one Deficiency is now to be remedied according to the invention in that one of the passage openings of the feed valve piston is designed to be parabolic or approximately parabolic, that the square changing length of the expansion pipe with the steam extraction regulates the inflow of the feed water in the same ratio as the steam extraction. The drawing represents an embodiment of the subject matter of the invention, for example in section.

24 ist das Speiseventil, in welchem ein Ventilkolben z3 geführt ist, der unter Vermittlung eines Gestänges i g, 18 mit dem Ausdehnungsrohr in Verbindung steht, welches durch die entnommene Dampfmenge aus dem Dampfkessel beeinflußt wird. Die Durchlaß.öffnungen des Speiseventilkolbens 23 sind derart parabolisch ausgebildet, daß die mit der Dampfentnahme quadratisch sich ändernde Länge des Ausdehnungsrohres den Zufluß des Speisewassers nur im gleichen Verhältnis mit der Dampfentnahme regelt.24 is the feed valve in which a valve piston z3 is guided, which by means of a linkage ig, 18 is in connection with the expansion pipe, which is influenced by the amount of steam withdrawn from the steam boiler. The passage openings of the feed valve piston 23 are parabolic in such a way that the length of the expansion pipe, which changes quadratically with the extraction of steam, regulates the inflow of the feed water only in the same ratio as the extraction of steam.

Claims (1)

PATENTANSPRUCH: Speisewasserregler mit zwei auf einen gemeinsamen, das Speiseventil betätigenden Hebel wirkenden Ausdehnungsrohren, von denen das eine in Abhängigkeit vom Wasserstand und das andere in Abhängigkeit von der Dampfentnahme beeinflußt wird, dadurch gekennzeichnet, daß die Kanten der V-förmigen Durchlaßöffnungen des Speiseventilkolbens (23) im wesentlichen derart parabolisch ausgebildet sind, daß die mit der Dampfentnahme quadratisch sich ändernde länge des Ausdehnungsrohres den Zufluß des Speisewassers nur im gleichen Verhältnis mit der Dampfentnahme regelt.PATENT CLAIM: Feed water regulator with two expansion pipes acting on a common lever which actuates the feed valve, one of which is influenced as a function of the water level and the other as a function of the steam extraction, characterized in that the edges of the V-shaped passage openings of the feed valve piston (23 ) are essentially parabolic in such a way that the length of the expansion pipe, which changes quadratically with the extraction of steam, regulates the inflow of the feed water only in the same ratio as the extraction of steam.
DEN28118D Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve Expired DE569359C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN28118D DE569359C (en) Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN28118D DE569359C (en) Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve

Publications (1)

Publication Number Publication Date
DE569359C true DE569359C (en) 1933-02-02

Family

ID=7344541

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN28118D Expired DE569359C (en) Feed water regulator with two expansion pipes acting on a common lever that actuates the feed valve

Country Status (1)

Country Link
DE (1) DE569359C (en)

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