US3750230A - Soot blower - Google Patents

Soot blower Download PDF

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Publication number
US3750230A
US3750230A US00242080A US3750230DA US3750230A US 3750230 A US3750230 A US 3750230A US 00242080 A US00242080 A US 00242080A US 3750230D A US3750230D A US 3750230DA US 3750230 A US3750230 A US 3750230A
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US
United States
Prior art keywords
carriage
feed tube
liner
tube
soot blower
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
US00242080A
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English (en)
Inventor
J Reed
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.)
Blaw Knox Co
White Consolidated Industries Inc
Original Assignee
Copes Vulcan 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 Copes Vulcan Inc filed Critical Copes Vulcan Inc
Application granted granted Critical
Publication of US3750230A publication Critical patent/US3750230A/en
Assigned to BLAW-KNOX COMPANY reassignment BLAW-KNOX COMPANY MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 26, 1978. DELAWARE Assignors: AETNA-STANDARD ENGINEERING COMPANY, BLAW-KNOX CONSTRUCTION EQUIPMENT, INC.,, BLAW-KNOX EQUIPMENT, INC., BLAW-KNOX FOOD & CHEMICAL EQUIPMENT, INC., BLAW-KNOX FOUNDRY & MILL MACHINERY, INC., COPES-VULCAN, INC.
Assigned to WHITE CONSOLIDATED INDUSTRIES, INC. reassignment WHITE CONSOLIDATED INDUSTRIES, INC. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 26, 1978 DISTRICT OF COLUMBIA Assignors: ATHENS STOVE WORKS, INC., BLAW-KNOX COMPANY, BULLARD COMPANY THE, DURALOY BLAW-KNOX, INC., FAYSCOTT, INC., GIBSON PRODUCTS CORPORATION, HUPP, INC., JERGUSON GAGE & VALVE COMPANY, KELIVINATOR INTERNATIONAL CORPORATION, KELVINATOR COMMERCIAL PRODUCTS, INC., KELVINATOR, INC., R-P & C VALVE, INC., WHITE SEWING MACHINE COMPANY, WHITE-SUNDSTRAND MACHINE TOOL, INC., WHITE-WESTINGHOUSE CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F28G3/163—Rotary appliances using jets of fluid for removing debris from internal surfaces of heat exchange conduits

Definitions

  • ABSTRACT [5 8] Fleld of Search 151/2321;3 510, 331972; A soot blower of the yp having a lance tube carried by a traveling carriage and a feed tube for supplying hot steam to the lance tube in which an insulating liner is [56] References cued provided between the feed tube and the carriage and 21 UNITED STATES PATENTS piston ring seal is provided between the liner and the 2,486,585 11/1949 Brelsford; 15/317 feed tube at the from; end of the carriage. 2,883,694 4/1959 Hibner et al... 15/317 3,195,165 7/1965 Matthews 15/317 6 Claims, 1 Drawing Figure PATENTED M19 7 3. 750,230
  • This invention relates to soot blowers and particularly to soot blowers of the type having a retractable lance carried by a traveling carriage movable in a casmg.
  • Soot blowers of the indicated type generally involve a long lance tube mounted on a traveling carriage movable in a casing in an arrangement in which the lance tube communicates with a soot blowing medium, usually steam at high temperature and pressure, by way of a feed tube which has its discharge end extending into the interior of the lance tube to maintain communication therewith as the lance tube is extended and retracted from the casing.
  • a soot blowing medium usually steam at high temperature and pressure
  • the general object of this invention to provide a soot blower of the indicated type which minimizes the temperatures that occur in the region of the traveling carriage and increases the life of the seal between the feed tube and the lance tube and carriage assembly.
  • the invention achieves the above objections by providing a seal between the carriage and the exterior of the feed tube located at the front of the carriage. This prevents the steam from entering the carriage region thereby limiting the heat applied to the carriage parts to that heat which is conducted from the hot feed tube. This heat conduction is-minimized by the provision of an insulating liner. Also, by utilizing piston rings for this seal, the life of the seal is extended since the piston rings are better able to stand the deterioration effects produced by the high pressure and high temperature steam.
  • FIGURE of the drawing is a fragmentary vertical longitudinal cross-sectional view through the carriage of a soot blower in accordance with the invention.
  • the invention is shown as incorporated in a soot blower of the type shown in detail in U.S. Pat. No. 2,883,694 to which reference is made for details of construction.
  • the soot blowing mechanism is mounted in an elongated casing of a generally rectangular cross-sectional shape and includes a traveling carriage indicated generally at 12 which is provided with wheels l1 riding on tracks (not shown) as is described more fully in said patent.
  • the supply conduit for the soot blowing medium namely, high pressure steam
  • the supply conduit for the soot blowing medium comprises a feed tube 13 which enters the casing I0 at the left-hand end thereof as viewed in the drawing and extends into the carriage from the rear end thereof generally centrally of the casing 10 terminating at a discharge end 14.
  • the feed tube 13 remains stationary with respect to the casing 10 while the carriage 12 moves back and forth relatively to the casing I0 and the feed tube 13 during operation of the soot blower.
  • Some of the conventional parts of the carriage 12 include a sleeve or spindle 16 which is rotatably mounted in bearings 15 and to which a worm wheel 17 is connected.
  • the worm wheel 17 is driven by a worm 20 which is mounted on a shaft 19 retably supported in bearings in the carriage 12.
  • the worm 20 carries a drive sprocket at an end thereof as is shown in said prior-mentioned patent.
  • the worm wheel 17 and the worm 20 are enclosed in a chamber 22 in the carriage 12 containing a suitable lubricant.
  • a long lance tube of the soot blower is shown at 25 and is welded at 26 to a flange 27 bolted to the sleeve 16 by bolts 28 which engage a sleeve flange 29.
  • the lance tube 25 is larger in diameter than the feed tube 13 as is shown in the drawing so that the lance tube moves telescopically over the feed tube.
  • the parts are arranged so that the discharge end 14 of the feed tube 13 is always in communication with the interior of the lance tube 25 so that in all relative positions the feed tube 13 supplies soot blowing medium to the lance tube
  • the carriage 12 is moved back and forth in the casing by a chain which has its ends connected to the carriage l2 and an intermediate portion passing around a driving sprocket (not shown) which is motor driven.
  • the chain also passes around idler sprockets 30 and 31 mounted on shafts 32 and 33, respectively, carried by the carriage 12 to thereby guide the chain around the drive sprocket for the worm gear 20.
  • the lance is provided at its extremity with a pair of discharge nozzles 34 through which the soot blowing medium, such as steam under pressure, is emitted.
  • soot blowing medium such as steam under pressure
  • a seal is provided to prevent the flow of the soot blowing medium from the interior of the lance tube 25 past the front end of the carriage 12.
  • an insulating liner 40 is mounted on the carriage 12 and is adapted to fit be tween the internal wall of the sleeve or spindle l6 and the external wall of the feed tube 13 as is shown in the drawing.
  • Liner 40 has a flange 42 at its front end, this flange being secured between the bracket 27 and the front flange 29 of the sleeve 16 so that the liner 40 is held in place and rotates with the sleeve 16.
  • a pair of sealing members 44 in the form of piston rings are contained within grooves in the internal wall of the liner 40 and cooperate with the feed tube 13 to provide a seal between the internal wall of the liner 40 and the external wall of the feed tube 13.
  • the piston seals 44 are located at the front end of the carriage 12 to prevent the flow of the soot blowing medium (high pressure steam) from the area of the lance tube 25 adjacent the carriage 12 past the front end of the carriage 12 along the exterior of the feed tube 13.
  • the piston ring seals 44 are made of a heatresistant metal such as stainless steel, and various cobalt base alloys to insure long life and minimize deterioration by the high tcmperature steam.
  • the insulating liner 40 is designed for a snug fit within the sleeve 16 with three small annular contact areas 46, 47 and 48 spaced along the liner 40 to provide dead air spaces 49, 50 and 51 between the liner 40 and the sleeve 16, these dead air spaces of course minimizing heat conduction.
  • a dead air space 52 between the liner 40 and the feed tube 13 which aids the minimization of heat conduction from the feed tube 13 to the carriage 12.
  • a soot blower having a traveling carriage movable along a casing and supporting a lance tube at the front end thereof, a feed tube for supplying a high temperature soot blowing medium to the interior of the said lance tube, said carriage being mounted for movement along the exterior of said feed tube with the discharge end of said feed tube extending within the interior'of said lance tube throughout said carriage movement, said carriage having an insulated carriage liner surrounding and in contact with said feed tube during said carriage movement, and means providing a seal to prevent flow of said soot blowing medium from the interior of said lance tube past the front end of said carriage along the exterior of said feed tube.
  • sald seal includes a sealing member between the interior Of said carriage liner and the exterior of said feed tube located at the front end of said carriage.
  • a soot blower according to claim 2 wherein said contact between said liner and said feed tube is along a plurality of areas spaced along said liner to minimize heat conduction between said feed tube and said liner.
  • a soot blower according to claim 1 wherein said contact between said liner and said feed tube is along a plurality of areas spaced along said liner to minimize heat conduction between said feed tube and said liner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
US00242080A 1972-04-07 1972-04-07 Soot blower Expired - Lifetime US3750230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24208072A 1972-04-07 1972-04-07

Publications (1)

Publication Number Publication Date
US3750230A true US3750230A (en) 1973-08-07

Family

ID=22913365

Family Applications (1)

Application Number Title Priority Date Filing Date
US00242080A Expired - Lifetime US3750230A (en) 1972-04-07 1972-04-07 Soot blower

Country Status (4)

Country Link
US (1) US3750230A (Direct)
JP (1) JPS5338361B2 (Direct)
CA (1) CA934253A (Direct)
GB (1) GB1415889A (Direct)

Cited By (6)

* 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
US4498213A (en) * 1981-02-17 1985-02-12 White Consolidated Industries, Inc. Soot blower
US5154198A (en) * 1988-09-01 1992-10-13 Halliburton Company Tube jetting apparatus
US5277153A (en) * 1993-01-22 1994-01-11 Durametallic Corporation Soot blower seal-bearing arrangement
US5765510A (en) * 1996-04-26 1998-06-16 Dltk, Inc. Retractable, sealed sootblower for high pressure, high temperature applications
EP1120623A1 (de) * 2000-01-28 2001-08-01 Siemens Aktiengesellschaft Reinigungsanordnung von Heizrohren sowie Verfahren zur Reinigung von Heizrohren

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360321A (en) * 1980-05-20 1982-11-23 General Motors Corporation Multicylinder refrigerant compressor muffler arrangement
US4705107A (en) * 1985-06-11 1987-11-10 Otis Engineering Corporation Apparatus and methods for cleaning a well
US4625799A (en) * 1985-06-19 1986-12-02 Otis Engineering Corporation Cleaning tool
GB8802778D0 (en) * 1988-02-08 1988-03-09 Progressive Technical Services Improvements in cleaning of interior of elongate passages
CN101846325B (zh) * 2010-06-02 2012-08-22 中国石油化工集团公司 一种吹灰器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525397A (Direct) *
US2486585A (en) * 1946-01-24 1949-11-01 Diamond Power Speciality Rotary retracting soot blower construction
US2883694A (en) * 1955-06-13 1959-04-28 Blaw Knox Co Soot blower
US3195165A (en) * 1961-12-21 1965-07-20 Babcock & Wilcox Ltd Fluid heater cleaners
US3216046A (en) * 1963-06-05 1965-11-09 Diamond Power Speciality Long travel soot blower with telescopic feed tube
US3477085A (en) * 1965-09-21 1969-11-11 Jean Eugene Julien Dulait Soot blowing devices

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525397A (Direct) *
US2486585A (en) * 1946-01-24 1949-11-01 Diamond Power Speciality Rotary retracting soot blower construction
US2883694A (en) * 1955-06-13 1959-04-28 Blaw Knox Co Soot blower
US3195165A (en) * 1961-12-21 1965-07-20 Babcock & Wilcox Ltd Fluid heater cleaners
US3216046A (en) * 1963-06-05 1965-11-09 Diamond Power Speciality Long travel soot blower with telescopic feed tube
US3477085A (en) * 1965-09-21 1969-11-11 Jean Eugene Julien Dulait Soot blowing devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498213A (en) * 1981-02-17 1985-02-12 White Consolidated Industries, Inc. Soot blower
US4445465A (en) * 1983-03-24 1984-05-01 Halliburton Company Sludge lance advancing apparatus
US5154198A (en) * 1988-09-01 1992-10-13 Halliburton Company Tube jetting apparatus
US5277153A (en) * 1993-01-22 1994-01-11 Durametallic Corporation Soot blower seal-bearing arrangement
US5765510A (en) * 1996-04-26 1998-06-16 Dltk, Inc. Retractable, sealed sootblower for high pressure, high temperature applications
EP1120623A1 (de) * 2000-01-28 2001-08-01 Siemens Aktiengesellschaft Reinigungsanordnung von Heizrohren sowie Verfahren zur Reinigung von Heizrohren

Also Published As

Publication number Publication date
JPS4914801A (Direct) 1974-02-08
CA934253A (en) 1973-09-25
JPS5338361B2 (Direct) 1978-10-14
GB1415889A (en) 1975-12-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WHITE CONSOLIDATED INDUSTRIES, INC.

Free format text: MERGER;ASSIGNORS:BLAW-KNOX COMPANY;KELVINATOR, INC.;WHITE-WESTINGHOUSE CORPORATION;AND OTHERS;REEL/FRAME:003926/0372

Effective date: 19781221

Owner name: BLAW-KNOX COMPANY

Free format text: MERGER;ASSIGNORS:AETNA-STANDARD ENGINEERING COMPANY;BLAW-KNOX CONSTRUCTION EQUIPMENT, INC.,;BLAW-KNOX EQUIPMENT, INC.;AND OTHERS;REEL/FRAME:003926/0382

Effective date: 19781221