US3516391A - Steam generating unit - Google Patents

Steam generating unit Download PDF

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Publication number
US3516391A
US3516391A US738631A US3516391DA US3516391A US 3516391 A US3516391 A US 3516391A US 738631 A US738631 A US 738631A US 3516391D A US3516391D A US 3516391DA US 3516391 A US3516391 A US 3516391A
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US
United States
Prior art keywords
steam
housing
drum
generating unit
water
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
US738631A
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English (en)
Inventor
Albert H Rawdon
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.)
New Holland Inc
Riley Power Inc
Original Assignee
Riley Power Inc
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 Riley Power Inc filed Critical Riley Power Inc
Application granted granted Critical
Publication of US3516391A publication Critical patent/US3516391A/en
Assigned to ASHLAND TECHNOLOGY, INC., A CORP. OF DE. reassignment ASHLAND TECHNOLOGY, INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNITED STATES RILEY CORPORATION, A CORP. OF DE.
Assigned to NEW HOLLAND INC., A CORP. OF DE reassignment NEW HOLLAND INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPERRY CORPORATION A CORP. OF DE
Anticipated expiration legal-status Critical
Assigned to ATEC, INC. reassignment ATEC, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ASHLAND TECHNOLOGY, INC.
Assigned to RILEY STOKER CORPORATION, A MA CORP. reassignment RILEY STOKER CORPORATION, A MA CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ATEC, INC.
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F22B37/28—Steam-separating arrangements involving reversal of direction of flow
    • F22B37/283—Steam-separating arrangements involving reversal of direction of flow specially adapted for boiler drums

Definitions

  • Another object of this invention is the provision of a steam generating unit containing steam cleaning apparatus which is simple and uncomplicated in construction and which is relatively free of maintenance problems.
  • a further object of the present invention is the provision of a steam generating unit having steam cleaning equipment which may be readily installed and replaced through a manhole in the steam-and-water drum.
  • a still further object of the invention is the provision of a steam separator which is inexpensive to manufacture and which is capable of a long life of useful service with a minimum of care.
  • the present invention consists of a steam generating unit having a steam-and-water drum of generally elongated cylindrical form, having a steam sepanited States Patent rator housing of elongated tubular form lying in the drum with its axis parallel to the axis of the drum, having an inner tube which is of substantially less diameter than the housing lying coaxially thereof, having a scroll wall extending generally coaxially of the tube midway between the tube and the housing to provide two steam paths, and having slots located at the outer periphery of each path to pick up water from the steam flow for disposal.
  • entrances are provided into the housing at selected positions along its length for fiow of steam into the two paths and exits are provided from the housing at positions between the said selected positions for the flow of steam out of the two paths.
  • a peel-off p ate extends upstream from the downstream edge of each slot in the upstream direction with its upstream edge spaced from but close to the inner surface of the housing or the scroll wall, respectively.
  • FIG. 1 shows a portion of a steam generating unit embodying the principles of the present invention
  • FIG. 2 shows an enlarged sectional view of a portion of the apparatus.
  • the steam generating unit indicated generally by the reference numeral 10, is shown as consisting of a steam-and-water drum 11 which is of generally elongated form and has connected to its bottom portion steam release tubes 12 and downcomer tubes 13.
  • a boiler feed pipe 14 lies in the bottom of the boiler to maintain a level 15 of water in the bottom of the drum.
  • a continuous blowdown pipe 16 and a chemical feed pipe 17 are also located in the bottom of the drum.
  • a baffle 18 extends angularly across the bottom of the drum to trap the steam arriving in the steam release tubes 12 and direct them to one side of the drum.
  • a primary separator 19 consisting of paral el perforated plates extending longitudinally of the drum and capped by a horizontal plate 21.
  • a housing 22 which is of an elongated tubular form which lies in the drum with its axis parallel to the axis of the drum, the housing having closed ends.
  • An inner tube 23 of tubular form of substantially less diameter than the diameter of the housing 22 lies coaxially of the housing.
  • a scroll wall 24 extends generally coaxially of the tube midway between the tube and the housing 22 to divide the space between them into two steam paths 25 and 26.
  • the slot 27 is located at the outer periphery of the path 26 and extends through the scroll wall 24, while a similar slot 28 extends through the housing 22, these slots being adapted to pick up water from the steam flow for disposal.
  • the slot 27 in the scroll wall 24 is connected by drainage tube 29 which extend radially across the space between the scroll Wall and the housing.
  • These drainage tubes extend through the housing 22 into a collection trough 31 which, in turn, is connected by a pipe 32 to the lower portion of the drum where its lower end lies under the water level 15.
  • the slot 28 in the housing 22 also opens into the collection trough 31 and releases liquid thereto.
  • Entrances 33 are provided into the housing 22 at selected positions along its length for the flow of steam into the paths 25 and 26.
  • Similar exits 34 are provided from the housing 22 at positions which alternate with and lie between the said selected positions for the flow of steam out of the two paths into the steam off-take pipe 35 of the drum.
  • a peel-off plate 36 extends upstream from the downstream edge of the slot 27 so that its upstream edge is spaced from but close to the inner surface of the scroll wall 24.
  • a similar peel-01f plate 37 extends from the downstream edge of the slot 28 in the housing 22 to an upstream position slightly spaced from the inner surface of the housing.
  • the steam from the steam release tubes 12 enters the steam-andwater drum 11, flows along the baflle 18 into the chamber defined by the water level 15, the separator 19, and the upper plate 21.
  • the steam then flows through the separator 19 and into the housing 22 through the entrances 33.
  • the steam divides itself between the path 25 and the path 26 and flows in a circular path, eventually reaching the peel-off plates 36 and 37.
  • the water, being heavier than the steam, is thrown outwardly by centrifugal force in each path and enters the space between the peel-off plates and the surface of the scroll wall 24 or the housing 22.
  • the water which flows under the peel-off plate 36 goes through the slot 27, through the drainage pipes 29 into the collection trough 31.
  • FIG. 2 shows the construction that is used at the downstream end of the plate 37.
  • An L-shaped catcher 38 overlies the end of the plate and guides droplets into a slot 39 leading to the slot 28.
  • the portion that fiows between the plate and the housing travels directly to the slot 28.
  • the portion that passes between the plate 37 and the scroll 24 is thrown toward the plate 37 and, eventually, the heavier portions and droplets are gathered by the catcher 38.
  • the leading edge of the catcher also divides the fiow, the heavier portion flowing into the slot 39 and the remainder going through the passages 34.
  • a similar construction is used at the downstream edge of the peel-off plate 36. In general, then, the present invention divides the total steam fiow into two parts and, then, subjects each part to a double catcher action.
  • the present construction has proved to be extremely practical because its resistance to steam flow seems to be about the same, irrespective of the amount of steam which flows through it, i.e., irrespective of the load on the boiler. It results in a high purity steam despite the fact that a great deal of steam is passed through the separator per unit length; it is compact and capable of being introduced through a manhole at the end of the steam-and-water drum.
  • a steam generating unit comprising (a) a steam-and-water drum of generally elongated cylindrical form,
  • (e) means defining slots located adjacent the outer periphery of each path to pick up water from the steam flow for disposal.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Cyclones (AREA)
US738631A 1968-06-20 1968-06-20 Steam generating unit Expired - Lifetime US3516391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73863168A 1968-06-20 1968-06-20

Publications (1)

Publication Number Publication Date
US3516391A true US3516391A (en) 1970-06-23

Family

ID=24968811

Family Applications (1)

Application Number Title Priority Date Filing Date
US738631A Expired - Lifetime US3516391A (en) 1968-06-20 1968-06-20 Steam generating unit

Country Status (4)

Country Link
US (1) US3516391A (enrdf_load_stackoverflow)
BE (1) BE734890A (enrdf_load_stackoverflow)
FR (1) FR2011345A1 (enrdf_load_stackoverflow)
GB (1) GB1231565A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242144A1 (de) * 1992-12-14 1994-06-16 Siemens Ag Wasserabscheider
US20110174240A1 (en) * 2010-01-20 2011-07-21 Alstom Technology Ltd. Controlling variables in boiler pressure vessels
US11473773B1 (en) * 2022-04-07 2022-10-18 Superior Boiler Works, Inc. Steam separator for boiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950285A (en) * 1931-10-16 1934-03-06 Hanlon Waters Inc Liquid and gas separator
US2221385A (en) * 1938-11-05 1940-11-12 Riley Stoker Corp Separation of solids from gases
DE890653C (de) * 1953-08-13 La Mont Kessel Herpen £k Co. K.G., Berlin-Schmargendorf Vorrichtung zur Abscheidung des Dampfes aus einem Dampfwassergemisch
US3189007A (en) * 1963-09-23 1965-06-15 Riley Stoker Corp Steam generating unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890653C (de) * 1953-08-13 La Mont Kessel Herpen £k Co. K.G., Berlin-Schmargendorf Vorrichtung zur Abscheidung des Dampfes aus einem Dampfwassergemisch
US1950285A (en) * 1931-10-16 1934-03-06 Hanlon Waters Inc Liquid and gas separator
US2221385A (en) * 1938-11-05 1940-11-12 Riley Stoker Corp Separation of solids from gases
US3189007A (en) * 1963-09-23 1965-06-15 Riley Stoker Corp Steam generating unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242144A1 (de) * 1992-12-14 1994-06-16 Siemens Ag Wasserabscheider
US20110174240A1 (en) * 2010-01-20 2011-07-21 Alstom Technology Ltd. Controlling variables in boiler pressure vessels
US11473773B1 (en) * 2022-04-07 2022-10-18 Superior Boiler Works, Inc. Steam separator for boiler

Also Published As

Publication number Publication date
FR2011345A1 (enrdf_load_stackoverflow) 1970-02-27
GB1231565A (enrdf_load_stackoverflow) 1971-05-12
BE734890A (enrdf_load_stackoverflow) 1969-12-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ASHLAND TECHNOLOGY, INC., NEW YORK, NY, A CORP. OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNITED STATES RILEY CORPORATION, A CORP. OF DE.;REEL/FRAME:004435/0797

Effective date: 19850709

AS Assignment

Owner name: NEW HOLLAND INC., A CORP. OF DE,PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPERRY CORPORATION A CORP. OF DE;REEL/FRAME:004700/0042

Effective date: 19860326

Owner name: NEW HOLLAND INC., 500 DILLER AVE., NEW HOLLAND, PA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPERRY CORPORATION A CORP. OF DE;REEL/FRAME:004700/0042

Effective date: 19860326

AS Assignment

Owner name: ATEC, INC.

Free format text: CHANGE OF NAME;ASSIGNOR:ASHLAND TECHNOLOGY, INC.;REEL/FRAME:005521/0519

Effective date: 19851205

Owner name: RILEY STOKER CORPORATION, WORCESTER, MA A MA CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ATEC, INC.;REEL/FRAME:005521/0514

Effective date: 19900928