US3661124A - Apparatus and process for slag deposit removal - Google Patents

Apparatus and process for slag deposit removal Download PDF

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Publication number
US3661124A
US3661124A US47694A US3661124DA US3661124A US 3661124 A US3661124 A US 3661124A US 47694 A US47694 A US 47694A US 3661124D A US3661124D A US 3661124DA US 3661124 A US3661124 A US 3661124A
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United States
Prior art keywords
discharge members
slag
fluid
furnace
body portion
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Expired - Lifetime
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US47694A
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English (en)
Inventor
Justin P Winkin
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Foster Wheeler Inc
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Foster Wheeler Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/16—Rotary appliances using jets of fluid for removing debris

Definitions

  • Field Search l/39 exchanger including at least one blast nozzle disposed proximate to the surface and having at least two outlet orifices.
  • This invention relates to an apparatus for removing slag deposits from a heat exchanger, and, more particularly, to an apparatus for removing slag deposits from the heat absorption surface of the furnace and convection sections of a vapor generator.
  • a blast nozzle comprising a hollow body member, at least two outlet orifices extending through a wall of said body member, first delivery means for delivering a first fluid to one of said orifices, and second delivery means for delivering a second fluid to the other of said orifices.
  • FIG. 1 is a partial section-partial schematic view looking at the side and down on the furnace section of a vapor generator
  • FIG. 2 is an enlarged sectional view taken along the line 2- 2 ofFlG. l;
  • FIG. 3 is a sectional view taken along the line 33 of FIG. 2.
  • FIG. 1 of the drawings a portion of the furnace section of a vapor generator is shown schematically by the reference numeral 10.
  • the furnace is formed by four walls, two of which are shown by the reference numerals l2 and 14, it being understood that corresponding walls opposite and parallel to the walls 12 and 14 are also provided to form an enclosed structure.
  • the walls 12 and 14 are of a fin-tube construction as shown schematically, and are surrounded by insulating walls 16 and 18 respectively.
  • the inner surfaces of the walls 12 and 14 form the heat absorption surface of the furnace section in a relatively heavy slag zone extending from the bottom portion of the furnace section up to the top height thereof.
  • a plurality of rows of fin-tubes, shown in general by the reference numeral 20, form the superheater portion of the furnace section 10.
  • each wall forming the furnace section 10, along with its corresponding'insulating wall, is provided with a plurality of openings extending therethrough for accomodating a corresponding number of blast nozzles.
  • a hole 12a and its corresponding hole 16a is shown extending through the fin-tube wall 12 and the insulating wall 16, it being understood that several more may be provided in this wall and the other walls for de-slagging the furnace walls, superheater walls in the furnace and other heat absorbing surfaces in the convection section.
  • the blast nozzle is shown by the reference numeral 22, and is adapted to be moved between a retracted position shown by the solid lines in FIG. I, and an extended, operative position shown by the broken lines.
  • This movement is achieved by means of a drive unit 24 which is connected to the nozzle 22 by means of a lance tube 26.
  • the drive unit is more completely described in US. Pat. Application Ser. No. 759,184, filed Sept. I1, 1968 and assigned to the assignee of the present invention, it being sufficient for the purposes of the present application to note that it is adapted to move along a pair of tracks 28 to and from the retracted and extended position of the nozzle 22, and that it includes means to impart a rotational drive to the nozzle.
  • a control system 30 is operatively connected to the drive unit 24 in order to control the above-mentioned movements of the nozzle 22, and to distribute steam and water from sources 32 and 34, respectively, to the nozzle via the drive unit 24 and the lance tube 26.
  • the connections between these components are shown schematically by the reference numeral 36.
  • the nozzle 22 comprises a hollow body member 40 having a pair of axially spaced, radially extending orifices 42 and 44 extending therethrough for respectively distributing steam and water through the nozzle.
  • the lance tube 26 is directly connected to the body member 40 for supplying steam from the source 32 to the orifice 42 via the control system 30 and the drive unit 24.
  • a water tube 46 is coaxially disposed within the lance tube 26 and connects the water source 34 to the orifice 44 via the control system 30, the drive unit 24, and an elbow connection 48.
  • a pair of nozzles 50 and 52 are associated with the orifices 42 and 44, and are adapted to receive the steam from the tube 26 and the water from the tube 46, respectively, and distribute it outwardly.
  • control system 30 is programmed to periodically actuate the drive unit 24, which moves along the tracks 28 and causes the lance tube 26 and the nozzle 22 to move from their retracted position to their extended position within the furnace section 10.
  • the nozzle 22' is continuously rotated, and distributes steam and water outwardly through the nozzles 50 and 52, respectively, against the inner surfaces of the walls 12 and 14.
  • control system 30 is adapted to sequentially actuate the nozzles according to a predetermined program based on the buildup of slag on the walls.
  • each nozzle can be provided with more than one orifice for discharging its respective fluid.
  • the specific construction and arrangement of the apparatus disclosed above can be made by those skilled in the art without departing from the invention as defined in the appended claims.
  • a slag deposit removal apparatus for cleaning the heat absorption surfaces of a vapor generator, said apparatus comprising a plurality of blast nozzles, each comprising a body portion, at least two fluid discharge members extending through a wall of said body portion and perpendicular to the longitudinal axes of said body portion; at least two fluid supply means for delivering separate fluids to said discharge members, respectively; first drive means for translating said discharge members between an operative position inside said furnace and an inoperative position outside said furnace; second drive means for rotating said discharge members in 2.
  • said discharge members are in the form of nozzles.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)
US47694A 1970-06-19 1970-06-19 Apparatus and process for slag deposit removal Expired - Lifetime US3661124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4769470A 1970-06-19 1970-06-19

Publications (1)

Publication Number Publication Date
US3661124A true US3661124A (en) 1972-05-09

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US47694A Expired - Lifetime US3661124A (en) 1970-06-19 1970-06-19 Apparatus and process for slag deposit removal

Country Status (5)

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US (1) US3661124A (fr)
CA (1) CA929054A (fr)
ES (1) ES392404A1 (fr)
FR (1) FR2099241A5 (fr)
GB (1) GB1331391A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445465A (en) * 1983-03-24 1984-05-01 Halliburton Company Sludge lance advancing apparatus
US4503811A (en) * 1981-12-29 1985-03-12 The Babcock & Wilcox Company Method and apparatus for removing deposits from highly heated surfaces
US4527515A (en) * 1983-04-11 1985-07-09 Halliburton Company Steam generator cleaning apparatus control system
US4603661A (en) * 1985-01-02 1986-08-05 Halliburton Company Hydroblast cyclone cleaner apparatus and method
US4971140A (en) * 1989-12-22 1990-11-20 Siemens Aktiengesellschaft Process and equipment for the maintenance of the secondary section of a heat exchanger
US5154198A (en) * 1988-09-01 1992-10-13 Halliburton Company Tube jetting apparatus
US5381811A (en) * 1994-03-02 1995-01-17 C.H. Heist Corp. Furnace cleaning apparatus
USRE36465E (en) * 1994-03-02 1999-12-28 C.H. Heist Corp. Furnace cleaning apparatus
US6782902B2 (en) * 2000-01-12 2004-08-31 Diamond Power International, Inc. Sootblower lance tube for dual cleaning media
WO2012143291A3 (fr) * 2011-04-21 2014-01-23 Clyde Bergemann Gmbh Maschinen- Und Apparatebau Appareil de nettoyage pour une centrale thermique, procédé de mise en oeuvre d'un appareil de nettoyage et procédé de nettoyage d'une centrale thermique
WO2018104137A1 (fr) * 2016-12-06 2018-06-14 Rosink-Werkstätten GmbH Installation de combustion, dispositif de nettoyage et procédé permettant de nettoyer un carneau et/ou des éléments rapportés

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573179B1 (fr) * 1984-11-13 1987-02-13 Framatome Sa Dispositif d'enlevement des boues pour installation de nettoyage de la plaque tubulaire d'un generateur de vapeur et installation comportant un tel dispositif

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646386A (en) * 1898-12-29 1900-03-27 Milon O Godding Hydrocarbon-burner.
US966987A (en) * 1909-09-01 1910-08-09 Ernest W Micklin Blower for boilers.
US1184985A (en) * 1915-08-19 1916-05-30 Anton Nystrom Oil-burner.
US1840544A (en) * 1923-07-02 1932-01-12 Diamond Power Speciality Boiler cleaner
US1926248A (en) * 1924-02-11 1933-09-12 Diamond Power Speciality Boiler cleaner
US2137253A (en) * 1935-09-10 1938-11-22 Beriah M Thompson Apparatus for the fireside cleaning of boilers
US3541999A (en) * 1968-09-11 1970-11-24 Foster Wheeler Corp Apparatus and process for slag deposit removal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646386A (en) * 1898-12-29 1900-03-27 Milon O Godding Hydrocarbon-burner.
US966987A (en) * 1909-09-01 1910-08-09 Ernest W Micklin Blower for boilers.
US1184985A (en) * 1915-08-19 1916-05-30 Anton Nystrom Oil-burner.
US1840544A (en) * 1923-07-02 1932-01-12 Diamond Power Speciality Boiler cleaner
US1926248A (en) * 1924-02-11 1933-09-12 Diamond Power Speciality Boiler cleaner
US2137253A (en) * 1935-09-10 1938-11-22 Beriah M Thompson Apparatus for the fireside cleaning of boilers
US3541999A (en) * 1968-09-11 1970-11-24 Foster Wheeler Corp Apparatus and process for slag deposit removal

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503811A (en) * 1981-12-29 1985-03-12 The Babcock & Wilcox Company Method and apparatus for removing deposits from highly heated surfaces
US4445465A (en) * 1983-03-24 1984-05-01 Halliburton Company Sludge lance advancing apparatus
US4527515A (en) * 1983-04-11 1985-07-09 Halliburton Company Steam generator cleaning apparatus control system
US4603661A (en) * 1985-01-02 1986-08-05 Halliburton Company Hydroblast cyclone cleaner apparatus and method
US5154198A (en) * 1988-09-01 1992-10-13 Halliburton Company Tube jetting apparatus
US4971140A (en) * 1989-12-22 1990-11-20 Siemens Aktiengesellschaft Process and equipment for the maintenance of the secondary section of a heat exchanger
US5381811A (en) * 1994-03-02 1995-01-17 C.H. Heist Corp. Furnace cleaning apparatus
USRE36465E (en) * 1994-03-02 1999-12-28 C.H. Heist Corp. Furnace cleaning apparatus
US6782902B2 (en) * 2000-01-12 2004-08-31 Diamond Power International, Inc. Sootblower lance tube for dual cleaning media
WO2012143291A3 (fr) * 2011-04-21 2014-01-23 Clyde Bergemann Gmbh Maschinen- Und Apparatebau Appareil de nettoyage pour une centrale thermique, procédé de mise en oeuvre d'un appareil de nettoyage et procédé de nettoyage d'une centrale thermique
CN103635748A (zh) * 2011-04-21 2014-03-12 克莱德贝格曼机器设备制造有限公司 用于热电厂的清洁设备、用于建立清洁设备的方法和用于清洁热电厂的方法
WO2018104137A1 (fr) * 2016-12-06 2018-06-14 Rosink-Werkstätten GmbH Installation de combustion, dispositif de nettoyage et procédé permettant de nettoyer un carneau et/ou des éléments rapportés

Also Published As

Publication number Publication date
FR2099241A5 (fr) 1972-03-10
GB1331391A (en) 1973-09-26
ES392404A1 (es) 1975-03-01
CA929054A (en) 1973-06-26

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