US3732851A - Method of and device for conditioning steam - Google Patents

Method of and device for conditioning steam Download PDF

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Publication number
US3732851A
US3732851A US00146869A US3732851DA US3732851A US 3732851 A US3732851 A US 3732851A US 00146869 A US00146869 A US 00146869A US 3732851D A US3732851D A US 3732851DA US 3732851 A US3732851 A US 3732851A
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United States
Prior art keywords
steam
plug
cooling water
pressure
passages
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Expired - Lifetime
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US00146869A
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English (en)
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R Self
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Control Components Inc
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Individual
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Assigned to CONTROL COMPONENTS, INC., A DE CORP. A SUBSIDIARY OF IMI PLC, A CORP. OF UK reassignment CONTROL COMPONENTS, INC., A DE CORP. A SUBSIDIARY OF IMI PLC, A CORP. OF UK ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SELF, RICHARD E.
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    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/13—Desuperheaters

Definitions

  • FICA/4R0 5 S54 BY ATTORNEYS 1 METHOD OF AND DEVICE FOR CONDITIONING STEAM This invention relates to conditioning temperature and pressure of fluids and is more particularly concerned with simultaneously reducing the temperature and pressure of superheated steam.
  • the prior arrangements have further had the disadvantage of difficulty in attaining uniform mixing of the cooling water with the steam, inefficient heat transfer, tendency toward noisy operation, requirement for interstage pressure taps on the feedwater pump, difficulty in controlling the turndown ratio, requirement for desuperheaters, high alloy steel downstream pipelines, bypass valves, etc., all of which have required costly equipment and have left much to be desired in function and results.
  • An important object of the present invention is to overcome the foregoing and other disadvantages, defects, .inefficiencies, shortcomings and problems in prior methods and structures and to attain important improvements and advantages through the new method of and device for conditioning steam to simultaneously reduce its temperature and pressure, as will hereinafter be more particularly described.
  • Another object of the invention is to provide a new and improved method of and device for conditioning steam to reduce its temperature and pressure attaining numerous advantages not only in proportioning the cooling water flow rate to steam flow rate but also in attaining maximum heat transfer efficiency with the cooling water.
  • a further object of the invention is to provide a new and improved method of and device for reducing steam temperature and pressure attaining improved mixing of the cooling water with the steam.
  • Still another object of the invention is to provide a new and improved method of and device for reducing steam temperature and pressure economically and without apparatus heretofore deemed necessary for the purpose.
  • Yet another object of the invention is to provide a new and improved method of and device for conditioning steam by reduction in temperature and pressure attaining high efficiency at low cost.
  • FIG. 1 is a vertical sectional detail view through a typical example of a device for practicing the present invention.
  • FIG. 2 is an enlarged fragmentary detail view taken substantially along the line "-11 of FIG. 1.
  • steam is conditioned to reduce its temperature and pressure by introducing cooling water into the steam and thereafter reducing the steam pressure.
  • This is accomplished with high efficiency and economy in a device representatively depicted in the drawings and comprising a high energy loss fluid control valve 5 wherein steam entering a housing 7 by way of an inlet 8 is subdivided and confined in a plurality of individual streams extending throughout a substantial length of travel through an annular control disk stack 9, thence passing into an encompassing chamber 10 within the housing and thence out through an outlet 11.
  • suitable piping will be connected to the inlet 8 and the outlet 1 1.
  • each of numerous individual disks 12 in the stack has at least on one face thereof a plurality of flow-subdividing and confining control passageways 13 providing a large number of angular turns between the inner perimeter of the annular stack and the outer perimeter thereof so that as the plurality of subdivided streams travel therealong high frictional resistance losses are imparted to the flowing fluid, in accordance with the teachings in my US. Pat. No. 3,514,074 issued May 26, 1970.
  • highly efficient control of both velocity and pressure of the fluid are attained in a substantially erosion-free, quiet and vibration-free manner in minimum operating space.
  • Steam flow rate through the pressure-reducing disk stack 9 is adapted to be controlled by means of a valve plug 14 which is reciprocably slidably mounted within the central bore defined by the tubular arrangement of the stack whereby entry of the steam from the inlet 8 into the entrance openings into the pressure-reducing passages 13 is regulated.
  • Operation of the plug 14 is effected by means of a valve stem 15 projecting from one end of the housing and provided with an actuating head 17 which may be in the form of a follower or cam yoke adapted to be operated by suitable cam device responsive to steam pressure at or adjacent to the inlet 8, thereby maintaining through the action of the valve plug 14 uniform steam pressure-responsive flow rate or volume through the pressure-reducing disk stack 9.
  • cooling water is introduced into the steam before the steam passes through the pressure-reducing disk stack 9.
  • introduction of the cooling water to the steam is effected in the region of the valve end face of the plug 14.
  • cooling water is introduced into the steam, preferably under suitable injection pressure through an axially extending passageway 18 in the valve plug and opening through an orifice 19 in the valve end face of the plug.
  • the passage 18 is located coaxially in the plug, and one or more, and in this instance a plurality of supply ducts 20 lead from the backface of the plug to and communicate with the inner end of the passage 18 which is in the form of a blind end bore with its inner end short of the bore into which the stem 15 is secured.
  • Water under suitable pressure is supplied to the ducts 20 from a water supply chamber 21 within the housing at the back of the plug 14 and to which water is delivered through a port 22 by means such as a duct 23 connected to any suitable source of water under the desired pressure such as a pressurized tank, pump, or the like.
  • the water is, in effect, injected into the steam on the upstream side of the valve at the point of maximum steam temperature and heat content for most efficient heat transfer. Further, the water and steam are subjected to turbulent mixing and expansion for complete vaporization and effective temperature control by the time the steam leaves the disk stack 9 and passes to the discharge or outlet 11.
  • a cooling water metering pin 24 extends through the orifice 19 into the passage 18.
  • This pin is of such length and taper that when the valve plug 14 is in minimum opening or passage relation to the pressure-reducing disk stack 9, the water supply is proportionately throttled and as the valve plug 14 lifts to increase the steam volume to the disk stack, the volume of cooling water is proportionately released through the passage 18 and the orifice 19 by corresponding reduction in the throttling effect of the pin in the passage 18.
  • the pin by a centered spaced relation to the wall of the passage 18 and the orifice 19 effects desirable 360 distribution of the cooling water into the steam which has 360 access to the pressure-reducing valve disk stack 9, thereby enhancing mixing efficiency and cooling effect of the water.
  • the pin is provided with base means in the form of an integral mounting spider disk 25 of larger diameter than the inlet 8 to seat uniformly thereabout and provided with a plurality of openings 27 therethrough to enable substantially unrestricted flow of steam toward the valve disk assembly 9.
  • the base disk 25 is of substantially the same diameter as the outside diameter of the disk stack 9 and is clamped against a base in the housing 7 at the bottom of the chamber by means of a ring member 28 which also provides a valve seat 29 engageable with the valve end of the plug 14 when it is desired to close the passage through the device.
  • valve disk assembly 9 On the ring 28 the valve disk assembly 9 is concentrically seated and thrust into a rigid unit as by means of a spacer ring member 30 pressed into assembly by a thrusting ring rim 3] of a separate housing head or bonnet 32 extending into an upwardly opening assembly bore 33 in the main part of the housing 7.
  • rim 31 serves to maintain a packing gland 34 about the plug 14. Thrusting retention of the rim 31 within the bore 33 is effected by means comprising a retaining ring 35 secured as by means of bolts 37 to thrust against a compression ring 38 toward the rim 3] and effecting a pressure seal by means of a sealing ring 39.
  • the present invention enables the simultaneous reduction of steam pressure and temperature of desired limits.
  • the device greatly minimizes and practically eliminates noise, vibration and erosion.
  • Typical uses for the method and device are in auxiliary steam start-up systems, turbine bypasses, plant heating systems, compressor drives, fan drives, and the like.
  • a device for conditioning steam to reduce its temperature and pressure comprising:
  • a housing having an inlet and an outlet and said means for reducing the steam pressure comprising a stack of annular disks having numerous multiangular passages between the disks;
  • said means to introduce cooling water comprising a passage through said plug.
  • a device in which said passage is located axially in said plug, said plug is reciprocably mounted within a bore defined by the disk stack, said plug has a valve face, and said passage opens through an orifice in said valve face.
  • a device including a metering pin mounted fixedly relative to said disk stack and extending into said passage through said orifice.
  • a device in which said device comprises a housing, said metering pin has a spider disk base, a valve seat ring clamping said base to said housing, said disk stack engaged upon said valve seat ring, a bonnet engaged upon said disk stack ring and having means retaining the parts in assembly, said bonnet providing a chamber at the end of said plug opposite to said valve face end, means for delivering water supply to said chamber, said water passage in the plug communicating .with said chamber, a valve stem extending from said bonnet, and means carried by said valve stem for controlling the position of said plug relative to said disk stack through said valve stem.
  • a device for conditioning steam to reduce its temperature and pressure comprising:
  • a device comprising an annular pressure reducing control disk stack providing said passages and having a space therein, means for directing steam to be conditioned into said space, said means for introducing cooling water communicating with said space.
  • a device including a plug valve operating in said space to control flow of steam and water to said passages, and said means for introducing cooling water including a passage through said plug communicating with said space.
  • a method of conditioning steam to reduce its temperature and pressure comprising:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Measuring Volume Flow (AREA)
  • Drying Of Solid Materials (AREA)
US00146869A 1971-05-26 1971-05-26 Method of and device for conditioning steam Expired - Lifetime US3732851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14686971A 1971-05-26 1971-05-26

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US3732851A true US3732851A (en) 1973-05-15

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US00146869A Expired - Lifetime US3732851A (en) 1971-05-26 1971-05-26 Method of and device for conditioning steam

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US (1) US3732851A (es)
JP (1) JPS534565B1 (es)
AU (1) AU471730B2 (es)
DE (1) DE2221921B2 (es)
ES (1) ES402767A1 (es)
FR (1) FR2139079B1 (es)
GB (1) GB1385975A (es)
IT (1) IT955561B (es)
NL (1) NL7206010A (es)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931371A (en) * 1973-07-25 1976-01-06 Babcock & Wilcox Limited Attemperator
FR2317481A1 (fr) * 1975-07-11 1977-02-04 Control Components Appareil de conditionnement de vapeur par abaissement de pression et injection de fluide froid pulverise
US4130611A (en) * 1976-12-06 1978-12-19 Yarway Corporation Attemperator
US4160002A (en) * 1976-06-09 1979-07-03 Janovtchik Viacheslav J Steam injectors
US4278619A (en) * 1979-09-05 1981-07-14 Sulzer Brothers Ltd. Steam throttle valve
US4352573A (en) * 1980-01-29 1982-10-05 Gaulin Corporation Homogenizing method
US4383769A (en) * 1980-01-29 1983-05-17 Gaulin Corporation Homogenizing apparatus and method
US4442047A (en) * 1982-10-08 1984-04-10 White Consolidated Industries, Inc. Multi-nozzle spray desuperheater
US4505865A (en) * 1983-02-10 1985-03-19 Holter Regelarmaturen Gmbh & Co. Kg Steam-pressure reduction valve
US5336451A (en) * 1993-01-22 1994-08-09 Itt Rayonier, Inc. Desuperheater apparatus and method
US5338496A (en) * 1993-04-22 1994-08-16 Atwood & Morrill Co., Inc. Plate type pressure-reducting desuperheater
US5380470A (en) * 1992-08-26 1995-01-10 Btg Kalle Inventing Ab Method and apparatus for reducing the pressure and temperature of steam in a steam conditioning valve
US5692684A (en) * 1993-02-03 1997-12-02 Holter Regelarmaturen Gmbh & Co. Kg Injection cooler
US5749650A (en) * 1997-03-13 1998-05-12 Apv Homogenizer Group, A Division Of Apv North America, Inc. Homogenization valve
DE4033362C3 (de) * 1990-10-17 2000-02-10 Horst Jaekel Vorrichtung zum Reduzieren des Druckes eines gasförmigen Mediums
US6189871B1 (en) * 1998-04-30 2001-02-20 Asea Brown Boveri Ag Steam introduction device in a power plant
US6305836B1 (en) * 1999-07-09 2001-10-23 Apv North America, Inc. Force absorbing homogenization valve
US6691929B1 (en) 2003-02-28 2004-02-17 Control Components, Inc. Closed-vortex-assisted desuperheater
US6715505B2 (en) 2000-11-30 2004-04-06 Dresser, Inc. Steam pressure reducing and conditioning valve
US6742773B2 (en) * 2000-11-30 2004-06-01 Dresser, Inc. Steam pressure reducing and conditioning valve
US6746001B1 (en) 2003-02-28 2004-06-08 Control Components, Inc. Desuperheater nozzle
US6758232B2 (en) 2000-11-30 2004-07-06 Dresser, Inc. Steam pressure reducing and conditioning system
US8931717B2 (en) 2012-10-03 2015-01-13 Control Components, Inc. Nozzle design for high temperature attemperators
US8955773B2 (en) 2012-10-03 2015-02-17 Control Components, Inc. Nozzle design for high temperature attemperators
CN105927790A (zh) * 2016-06-30 2016-09-07 航天海鹰(哈尔滨)钛业有限公司 一种具有控温功能的迷宫式调节阀阀芯
US10288280B2 (en) 2014-08-04 2019-05-14 Cci Italy Srl Dual cone spray nozzle assembly for high temperature attemperators
CN110715109A (zh) * 2019-10-17 2020-01-21 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） 自清洁多级降压调节阀
SE1930345A1 (en) * 2019-10-24 2021-04-25 Bvt Sweden Ab A Steam Conditioning Valve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049085U (ja) * 1983-09-13 1985-04-06 本田技研工業株式会社 鞍乗型バギ−車のシ−ト取付構造
DE3524732C1 (de) * 1985-07-11 1986-09-04 Deutsche Babcock Werke AG, 4200 Oberhausen Sicherheitsueberstroemventil
GB2261745A (en) * 1991-11-13 1993-05-26 Sensycon Ind Sensorsyst Pneumatic restrictor
DE19719120C2 (de) * 1997-05-07 2000-10-12 Schneider Bochumer Maschf A Vorrichtung zur Kühlung von Heißdampf

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773053A (en) * 1923-07-13 1930-08-12 Elliott Co Method for desuperheating steam
US3331590A (en) * 1965-02-18 1967-07-18 Battenfeld Werner Pressure reducing control valve
US3496724A (en) * 1967-11-30 1970-02-24 Allis Chalmers Mfg Co Main steam line desuperheater systems,apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773053A (en) * 1923-07-13 1930-08-12 Elliott Co Method for desuperheating steam
US3331590A (en) * 1965-02-18 1967-07-18 Battenfeld Werner Pressure reducing control valve
US3496724A (en) * 1967-11-30 1970-02-24 Allis Chalmers Mfg Co Main steam line desuperheater systems,apparatus and method

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931371A (en) * 1973-07-25 1976-01-06 Babcock & Wilcox Limited Attemperator
FR2317481A1 (fr) * 1975-07-11 1977-02-04 Control Components Appareil de conditionnement de vapeur par abaissement de pression et injection de fluide froid pulverise
US4011287A (en) * 1975-07-11 1977-03-08 David John Marley Steam conditioning valve
US4160002A (en) * 1976-06-09 1979-07-03 Janovtchik Viacheslav J Steam injectors
US4130611A (en) * 1976-12-06 1978-12-19 Yarway Corporation Attemperator
US4278619A (en) * 1979-09-05 1981-07-14 Sulzer Brothers Ltd. Steam throttle valve
US4352573A (en) * 1980-01-29 1982-10-05 Gaulin Corporation Homogenizing method
US4383769A (en) * 1980-01-29 1983-05-17 Gaulin Corporation Homogenizing apparatus and method
US4442047A (en) * 1982-10-08 1984-04-10 White Consolidated Industries, Inc. Multi-nozzle spray desuperheater
US4505865A (en) * 1983-02-10 1985-03-19 Holter Regelarmaturen Gmbh & Co. Kg Steam-pressure reduction valve
DE4033362C3 (de) * 1990-10-17 2000-02-10 Horst Jaekel Vorrichtung zum Reduzieren des Druckes eines gasförmigen Mediums
US5380470A (en) * 1992-08-26 1995-01-10 Btg Kalle Inventing Ab Method and apparatus for reducing the pressure and temperature of steam in a steam conditioning valve
US5336451A (en) * 1993-01-22 1994-08-09 Itt Rayonier, Inc. Desuperheater apparatus and method
US5692684A (en) * 1993-02-03 1997-12-02 Holter Regelarmaturen Gmbh & Co. Kg Injection cooler
US5338496A (en) * 1993-04-22 1994-08-16 Atwood & Morrill Co., Inc. Plate type pressure-reducting desuperheater
US5749650A (en) * 1997-03-13 1998-05-12 Apv Homogenizer Group, A Division Of Apv North America, Inc. Homogenization valve
US5899564A (en) * 1997-03-13 1999-05-04 Apv Homogenizer Group, Div. Of Apv North America Homogenization valve
US6189871B1 (en) * 1998-04-30 2001-02-20 Asea Brown Boveri Ag Steam introduction device in a power plant
US6305836B1 (en) * 1999-07-09 2001-10-23 Apv North America, Inc. Force absorbing homogenization valve
US6758232B2 (en) 2000-11-30 2004-07-06 Dresser, Inc. Steam pressure reducing and conditioning system
US6715505B2 (en) 2000-11-30 2004-04-06 Dresser, Inc. Steam pressure reducing and conditioning valve
US6742773B2 (en) * 2000-11-30 2004-06-01 Dresser, Inc. Steam pressure reducing and conditioning valve
US6746001B1 (en) 2003-02-28 2004-06-08 Control Components, Inc. Desuperheater nozzle
US6691929B1 (en) 2003-02-28 2004-02-17 Control Components, Inc. Closed-vortex-assisted desuperheater
US8931717B2 (en) 2012-10-03 2015-01-13 Control Components, Inc. Nozzle design for high temperature attemperators
US8955773B2 (en) 2012-10-03 2015-02-17 Control Components, Inc. Nozzle design for high temperature attemperators
US10288280B2 (en) 2014-08-04 2019-05-14 Cci Italy Srl Dual cone spray nozzle assembly for high temperature attemperators
CN105927790A (zh) * 2016-06-30 2016-09-07 航天海鹰(哈尔滨)钛业有限公司 一种具有控温功能的迷宫式调节阀阀芯
CN110715109A (zh) * 2019-10-17 2020-01-21 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） 自清洁多级降压调节阀
SE1930345A1 (en) * 2019-10-24 2021-04-25 Bvt Sweden Ab A Steam Conditioning Valve

Also Published As

Publication number Publication date
DE2221921A1 (de) 1972-11-30
AU4141772A (en) 1973-10-25
JPS534565B1 (es) 1978-02-18
FR2139079B1 (es) 1973-07-13
AU471730B2 (en) 1976-04-29
IT955561B (it) 1973-09-29
GB1385975A (en) 1975-03-05
NL7206010A (es) 1972-11-28
DE2221921B2 (de) 1974-03-21
FR2139079A1 (es) 1973-01-05
ES402767A1 (es) 1976-01-01

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AS Assignment

Owner name: CONTROL COMPONENTS, INC., A DE CORP. A SUBSIDIARY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SELF, RICHARD E.;REEL/FRAME:004165/0177

Effective date: 19830810