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DE1237138B - Steam converting valve for hot steam cooling - Google Patents

Steam converting valve for hot steam cooling

Info

Publication number
DE1237138B
DE1237138B DE1959W0024894 DEW0024894A DE1237138B DE 1237138 B DE1237138 B DE 1237138B DE 1959W0024894 DE1959W0024894 DE 1959W0024894 DE W0024894 A DEW0024894 A DE W0024894A DE 1237138 B DE1237138 B DE 1237138B
Authority
DE
Germany
Prior art keywords
valve
steam
hollow body
cooling
web
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
Application number
DE1959W0024894
Other languages
German (de)
Inventor
Heinrich Welland
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.)
HEINRICH WELLAND
Original Assignee
HEINRICH WELLAND
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEINRICH WELLAND filed Critical HEINRICH WELLAND
Priority to DE1959W0024894 priority Critical patent/DE1237138B/en
Publication of DE1237138B publication Critical patent/DE1237138B/en
Pending legal-status Critical Current

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
    • 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
    • F16K1/425—Attachment of the seat to the housing by plastical deformation, e.g. valve seat or housing being plastically deformed during mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G5/00—Controlling superheat temperature
    • F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
    • F22G5/123—Water injection apparatus
    • F22G5/126—Water injection apparatus in combination with steam-pressure reducing valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Description

Dampfumformventil zur Heißdampfkühlung Die Erfindung betrifft ein Dampfumformventil zur Heißdampfkühlung, bei welchem in eine ringförmige Ausnehmung des Ventilsteges ein Hohlkörper zur Kühlwasserzufuhr eingesetzt ist.Steam converting valve for superheated steam cooling The invention relates to a Steam conversion valve for superheated steam cooling, in which in an annular recess of the valve web a hollow body is used for the cooling water supply.

Es hat sich gezeigt, daß bei derartigen Ventilen mit großem Durchtrittsquerschnitt infolge großer mechanischer Preßdrücke Verformungen der Ventilsitze auftreten können.It has been shown that in such valves with a large passage cross-section deformations of the valve seats can occur as a result of large mechanical pressing pressures.

Um derartige Verformungen zu vermeiden, wird erfindungsgemäß vorgeschlagen, die obere Wandung des Hohlkörpers tiefer zu legen als die Oberfläche des Ventilsteges und den so gebildeten Ringraum mit einer Schweißwulst zu füllen, die zumindest einen Teil der Ventilsitzfläche bildet.In order to avoid such deformations, it is proposed according to the invention that to lay the upper wall of the hollow body lower than the surface of the valve web and to fill the annulus thus formed with a weld bead, the at least one Forms part of the valve seat surface.

Bei einer bevorzugten Ausführungsform verläuft dabei die obere Wandung des Hohlkörpers etwa rechtwinklig zur Ventilsitzfläche.In a preferred embodiment, the upper wall runs of the hollow body approximately at right angles to the valve seat surface.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung veranschaulicht, und zwar zeigt die Abbildung einen senkrechten Querschnitt durch den Sitzteil eines Dampfumformventils zur Heißdampfkühlung.In the drawing, an embodiment of the invention is illustrated, namely the figure shows a vertical cross section through the seat part of a Steam conversion valve for superheated steam cooling.

Das Kühlwasser wird dem Dampf von außen her durch ein oder mehrere Zuführungsrohre f und einen Hohlkörper a zugeführt, der in dem dargestellten Ausführungsbeispiel durch zwei miteinander verschweißte ringförmige Teile b und c gebildet, innerhalb einer ringförmigen Ausnehmung i des Ventilgehäuses d angeordnet und im Bereich des Ventildurchtrittes mit einem Kühlwasserdurchtrittsspalt h versehen ist. Die obere Wandung des Hohlkörpers a liegt tiefer als die Oberfläche d" des Ventilsteges d und ist unmittelbar oberhalb des Durchtrittsspaltes h derart nach außen geneigt, daß sie etwa rechtwinklig zur Ventilsitzfläche verläuft. Der oberhalb dieser Hohlkörperwandung befindliche Ringraum des Ventilgehäusesteges d wird beim Einschweißen des Hohlkörpers a mit Schweißmaterial ausgefüllt. Man erhält auf diese Weise eine außerordentlich kräftige Schweißwulst j, die mindestens einen Teil der Ventilsitzfläche bildet und den durch das Verschlußstück k auf den Ventilsitz ausgeübten mechanischen Preßdruck auf den Steg d des Ventilgehäuses d überträgt.The cooling water is fed to the steam from the outside through one or more feed pipes f and a hollow body a, which in the illustrated embodiment is formed by two annular parts b and c welded together, arranged within an annular recess i of the valve housing d and in the area of the valve passage is provided with a cooling water passage gap h. The upper wall of the hollow body a is lower than the surface d "d of the valve web and is inclined outwardly to be about perpendicular to the valve seat. The annular space of the valve housing ridge located above the hollow body wall is d directly h above the passage gap during the welding of the hollow body In this way, an extremely strong weld bead j is obtained, which forms at least part of the valve seat surface and transfers the mechanical pressure exerted on the valve seat by the closure piece k to the web d of the valve housing d .

Die zwischen dem Hohlkörper a und dem Ventilgehäuse d vorhandenen ringförmigen Luftspalte m vermindern einen direkten Obergang der Kühlwassertemperatur auf das durch den Dampf erhitzte Gehäuse d.The annular air gaps m present between the hollow body a and the valve housing d reduce a direct transfer of the cooling water temperature to the housing d heated by the steam.

Im Ventildurchtritt ist ferner in an sich bekannter Weise ein Einsatz o aus legiertem Stahl angeordnet.In the valve passage there is also an insert in a manner known per se o Arranged in alloy steel.

Claims (2)

Patentansprüche: 1. Dampfumformventil zur Heißdampfkühlung, bei welchem in eine ringförmige Ausnehmung des Ventilsteges ein Hohlkörper zur Kühlwasserzufuhr eingesetzt ist, dadurch gekennzeichnet, daß die obere Wandung des Hohlkörpers (a) tiefer liegt als die Oberfläche (d") des Ventilsteges (d') und der so gebildete Ringraum mit einer Schweißwulst (j) gefüllt ist, die zumindest einen Teil der Ventilsitzfläche bildet. Claims: 1. Steam converting valve for superheated steam cooling, in which a hollow body for cooling water supply is inserted into an annular recess of the valve web, characterized in that the upper wall of the hollow body (a) is lower than the surface (d ") of the valve web (d ') and the annular space thus formed is filled with a weld bead (j) which forms at least part of the valve seat surface. 2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß die obere Wandung des Hohlkörpers (a) etwa rechtwinklig zur Ventilsitzfläche verläuft. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 919 570, 1023 047.2. Valve according to claim 1, characterized in that that the upper wall of the hollow body (a) is approximately at right angles to the valve seat surface runs. Publications considered: German Patent Specifications No. 919 570, 1023 047.
DE1959W0024894 1959-01-23 1959-01-23 Steam converting valve for hot steam cooling Pending DE1237138B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1959W0024894 DE1237138B (en) 1959-01-23 1959-01-23 Steam converting valve for hot steam cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959W0024894 DE1237138B (en) 1959-01-23 1959-01-23 Steam converting valve for hot steam cooling

Publications (1)

Publication Number Publication Date
DE1237138B true DE1237138B (en) 1967-03-23

Family

ID=7597953

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1959W0024894 Pending DE1237138B (en) 1959-01-23 1959-01-23 Steam converting valve for hot steam cooling

Country Status (1)

Country Link
DE (1) DE1237138B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013531215A (en) * 2010-06-03 2013-08-01 エスピーエックス・コーポレイション Overheat reducer seat ring device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919570C (en) * 1942-03-28 1954-10-28 Ewald Schlegel Pressure reducing valve for high pressure steam and supercritical pressure ratios
DE1023047B (en) 1954-03-31 1958-01-23 Heinrich Welland Steam converting valve for hot steam cooling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919570C (en) * 1942-03-28 1954-10-28 Ewald Schlegel Pressure reducing valve for high pressure steam and supercritical pressure ratios
DE1023047B (en) 1954-03-31 1958-01-23 Heinrich Welland Steam converting valve for hot steam cooling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013531215A (en) * 2010-06-03 2013-08-01 エスピーエックス・コーポレイション Overheat reducer seat ring device

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