US3599674A - Valve means for converting superheated high pressure steam into steam of lower pressure and temperature - Google Patents

Valve means for converting superheated high pressure steam into steam of lower pressure and temperature Download PDF

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Publication number
US3599674A
US3599674A US864004A US3599674DA US3599674A US 3599674 A US3599674 A US 3599674A US 864004 A US864004 A US 864004A US 3599674D A US3599674D A US 3599674DA US 3599674 A US3599674 A US 3599674A
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US
United States
Prior art keywords
valve
spindle
steam
housing
seat
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 - Lifetime
Application number
US864004A
Other languages
English (en)
Inventor
Berth Ulrik Gustafsson
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.)
KAELLE REGULATORER AB
KALLE-REGULATORER AB
Original Assignee
KAELLE REGULATORER AB
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 KAELLE REGULATORER AB filed Critical KAELLE REGULATORER AB
Application granted granted Critical
Publication of US3599674A publication Critical patent/US3599674A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/08—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with bimetallic element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/185—Control of temperature with auxiliary non-electric power
    • G05D23/1854—Control of temperature with auxiliary non-electric power with bimetallic element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/87016—Lost motion
    • Y10T137/8704—First valve actuates second valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87571—Multiple inlet with single outlet
    • Y10T137/87676—With flow control
    • Y10T137/87684—Valve in each inlet
    • Y10T137/87692—With common valve operator

Definitions

  • Valve means comprising a steam valve and a water supply valve proportioning water to a steam conduit downstream of the steam valve, said water valve being adapted to close a little before the steam valve is closed.
  • the invention relates to valve means for converting superheated high-pressure steam into steam of lower pressure and temperature by supply of a proportioned amount of water.
  • a known valve mechanism used for this purpose comprises a steam valve housing in which a valve spindle is movable axially and cooperates with a surrounding annular valve seat to control the supply of steam from a steam conduit connected to the housing. Further, at least one channel extending axially through at least a part of said spindle and ending downstream of the steam valve seat has its inlet end in communication with a source of pressurized water over a water supply valve.
  • the latter valve has comprised a valve body carried by the steam valve spindle and cooperating with a stationary seat.
  • the object of the invention is to provide valve means by which said inconveniences are eliminated.
  • the valve body of the water supply valve is movable in relation to the steam valve spindle in the axial direction of the latter and spring-loaded in its closing direction.
  • the water valve body is adapted to close by engaging'its seatalittle before the steam valve is closed.
  • the steam valve spindle may thus continue to move to its closing position independently of the water valve, and in this way it will be ensured that appearing differences in temperature never cause a leakage of water when the steam valve is closed.
  • the relative movement of the water valve body will be rather small, as the variations in length caused by the differences in temperature are generally smaller than 1 mm.
  • FIG. 1 is an axial section through the valve means.
  • FIG. 2 shows, on a larger scale, the resilient connection between the water valve body and the steam valve spindle.
  • FIG. 3 shows, likewise on a larger scale, the two valves in a position, where the water valve has just been closed.
  • FIG. 1 designates a valve housing having an inlet pipe socket 5 and an outlet pipe socket 6, said pipes 5, 6 extending at an'angle of 90 in relation to each other.
  • the inlet 5 is adapted to be connected to a source of high-pressure steam
  • the outlet 6 is adapted to be connected to a conduit for supply of steam of reduced pressure and temperature to a place of consumption. Coaxially in alignment to the outlet 6.
  • the housing 4 has another pipe socket 7 in which a substantially cylindrical pipe 8 is inserted and secured by flanged rings 9, l0 and screw bolts 11 to serve as a housing for the water valve,
  • the steam valve spindle which extends axially through the pipe 8, is composed of a rather thick, cylindrical member 12 projecting into the steam valve housing 4 and a rod 13 which has a threaded end portion screwed into a correspondingly threaded bore in the rear end of the cylinder 12.
  • the thick spindle portion 12 is a guided by a sleeve 14 inserted in the pipe 8, and its fore end iswidened to form a valve body 15 which is adapted to cooperate with a seat ring 16 mounted at the inner end of the outlet socket 6.
  • a fore portion of the valve body 15 extends through the seat ring 16 and is tapered conically, while the rear valve body portion is extended radially to form an annular flange adapted to engage the inner end surface of the seat ring 16. Further, the fore spindle portion 12 is formed with a number of channels 17 extending axially therethrough and ending in the valve body surface turned to the outlet 6.
  • the spindle rod 13 extends through a sleeve 18 with a clearance as small as possible.
  • the sleeve 18 is movable axially and is guided in a leakproof bushing 19 which is inserted in a cover 21 secured to the flanged outer end of the pipe 8 by means of bolts 20.
  • the inner end portion of the sleeve 18 is tapered to form a valve cone 22 which is adapted to cooperate with a surrounding annular seat 23 secured within the pipe 8.
  • the inner diameter of the seat ring 23 is only a little greater than the greatest diameter of the valve cone 22.
  • the valve cone In front of the seat 23 the valve cone is widened radially to an annular portion 22 adapted to engage the outer end surface of the seat ring 23.
  • the pipe 8 communicates with a pipe socket 24 which projects radially and is adapted to be connected to a thrust water conduit.
  • the outer end of the spindle rod 13 is threaded and screwed in'a correspondingly threaded axial bore in a plate 25.
  • the opposite side of the plate 25 has a rodlike axial extension 26 which is by some suitable means, such as a screw joint, connected to one end of a coaxial rod 27 pertaining to a control mechanism.
  • the sleeve 18 has its outer end located at some distance from the plate 25, and a ring 28 secured to the sleeve is by means of screws 29 connected to a somewhat wider ring 30 which is in this way kept v plate 25 to make possible an adjustment of the position of the ring and thus a'change of the tension of the springs 32.
  • the cup springs 32 leave an annular space around the spindle rod 13, and within this space the rod 13 is surrounded by a bellows 33 which has one end sealed to the ring 30, while its other end is clamped to the rod 13 by means of a ring 34 secured to the plate 25.
  • the bellows 33 serves to prevent leakage of water through a possible clearance between the rod 13 and the sleeve 18.
  • the resilient connection between the spindle rod 13 and the sleeve 18 is enclosed by a cylindrical casing 35 which has one end secured to the cover 21 by means of the screws 20. At its opposite end the casing 35 has a tubular extension 36 in which the control rod 27 is guided by means of a bushing 37.
  • a link 39 adjustable in length has one end pivoted to an ear 39 projecting from the tube 36, while its other end is linked to one end of a lever 40. At some distance from said link 39 the lever is pivotably connected to the rod 27, and the opposite end of the lever 40 is pivotably connected to a piston rod 41 projecting from a double-acting pressure-fluid operated cylinder 42.
  • Valve means for converting superheated high-pressure steam into steamof lower pressure and temperature comprising a steam valve housing having an annular steam valve seat, a steam valve having a spindle movable axially in said housing to cooperate with said steam valve seat, a channel having an inlet and outlet extending axially through a part of said spindle ending downstream of said steam valve seat, a water supply valve controlling said inlet to said channel, said water supply valve comprising a valve body movably mounted on said steam'valve spindle, a stationary valve seat connected to said valve housing cooperating with said valve body, means for moving said valve body relative to said spindle in the axial direction of said spindle, resilient means urging said valve body to closing direction whereby said valve body will engage said stationary valve seat before said steam valve engages said steam valve seat when said spindle is moved in closing direction.
  • Valve means as claimed in claim 2 wherein a second housing is provided connected to a source of pressurized water through which said spindle extends, said second housing communicating with said steam valve housing through said water supply valve.
  • Valve means as set forth in claim 3 wherein'said valve body isformed on a sleeve surrounding said spindle within said second housing and said sleeve is resiliently connected by said resilient means to said spindle.
  • Valve means as set forth in claim wherein a spindle rod carries said sleeve and the rear end of said thickened spindle portion is located at a little distance from the adjacent end of said sleeve when both valves are closed.
  • Valve means as claimed in claim 4 wherein the rear ends of said spindle and said sleeve are connected by a bellows to seal the clearance between said spindle and sleeve.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
  • Temperature-Responsive Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
US864004A 1968-11-29 1969-10-06 Valve means for converting superheated high pressure steam into steam of lower pressure and temperature Expired - Lifetime US3599674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16325/68A SE326456B (de) 1968-11-29 1968-11-29

Publications (1)

Publication Number Publication Date
US3599674A true US3599674A (en) 1971-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
US864004A Expired - Lifetime US3599674A (en) 1968-11-29 1969-10-06 Valve means for converting superheated high pressure steam into steam of lower pressure and temperature

Country Status (5)

Country Link
US (1) US3599674A (de)
DE (1) DE1959446C3 (de)
FR (1) FR2024515A1 (de)
GB (1) GB1224405A (de)
SE (1) SE326456B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374770A1 (fr) * 1976-12-20 1978-07-13 Quick Rotan Becker & Notz Kg Mecanisme de positionnement
US20190178450A1 (en) * 2016-03-25 2019-06-13 Wuzhong Instrument Co., Ltd. Integrated Temperature and Pressure Reducing Device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH643043A5 (de) * 1979-06-20 1984-05-15 Sulzer Ag Dampf-drosselventil.
EP0479020B1 (de) * 1990-09-29 1994-11-23 Siemens Aktiengesellschaft Dampfumformventil mit Spindelantrieb
DE10352544B4 (de) * 2003-11-11 2016-07-07 Holter Regelarmaturen Gmbh & Co. Kg Wasserdampfumformer mit einer differenzdruckgesteuerten Einspritzdüse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1022758A (en) * 1910-09-22 1912-04-09 Colonial Trust Co Valve.
US1072796A (en) * 1912-02-15 1913-09-09 Charles E Vance Blow-off valve.
US2254472A (en) * 1939-04-28 1941-09-02 Mason Neilan Regulator Company Combination control and quench valve
US3150687A (en) * 1961-12-20 1964-09-29 Kalle Karl Torsten High pressure valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1022758A (en) * 1910-09-22 1912-04-09 Colonial Trust Co Valve.
US1072796A (en) * 1912-02-15 1913-09-09 Charles E Vance Blow-off valve.
US2254472A (en) * 1939-04-28 1941-09-02 Mason Neilan Regulator Company Combination control and quench valve
US3150687A (en) * 1961-12-20 1964-09-29 Kalle Karl Torsten High pressure valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374770A1 (fr) * 1976-12-20 1978-07-13 Quick Rotan Becker & Notz Kg Mecanisme de positionnement
US20190178450A1 (en) * 2016-03-25 2019-06-13 Wuzhong Instrument Co., Ltd. Integrated Temperature and Pressure Reducing Device

Also Published As

Publication number Publication date
GB1224405A (en) 1971-03-10
DE1959446C3 (de) 1974-03-07
DE1959446B2 (de) 1973-08-09
DE1959446A1 (de) 1970-06-11
SE326456B (de) 1970-07-27
FR2024515A1 (de) 1970-08-28

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