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WO2003033211A1 - Systeme de decapage par jet - Google Patents

Systeme de decapage par jet Download PDF

Info

Publication number
WO2003033211A1
WO2003033211A1 PCT/GB2002/002233 GB0202233W WO03033211A1 WO 2003033211 A1 WO2003033211 A1 WO 2003033211A1 GB 0202233 W GB0202233 W GB 0202233W WO 03033211 A1 WO03033211 A1 WO 03033211A1
Authority
WO
WIPO (PCT)
Prior art keywords
item
vacuum
pipe
inlet
cleaning medium
Prior art date
Application number
PCT/GB2002/002233
Other languages
English (en)
Inventor
Raymond Robert Britner
Original Assignee
Raymond Robert Britner
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
Priority claimed from GB0124618A external-priority patent/GB2370525B/en
Application filed by Raymond Robert Britner filed Critical Raymond Robert Britner
Publication of WO2003033211A1 publication Critical patent/WO2003033211A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials

Definitions

  • the consumption of the blasting medium used is in the region of 500 kilograms per hour (500kg/hr), which constitutes a relatively high running cost.
  • the equipment being that of a pressure vessel category and therefore will require the relevant registration requirements and certification.
  • Fig 1 shows a diagrammatic layout of the system.
  • Fig 2 shows a front elevation of the vacuum amplifier.
  • Fig 3 shows a front elevation of a water injector.
  • Item 3 Fig 1 is the 'spray' or 'blast' nozzle from which is emitted the requisite volume of air carrying the blasting medium and is represented by arrow 'A'.
  • Fig 1 is the vacuum amplifier and is shown in greater detail in Fig 2.
  • Item 5 is a pipe manufactured to a defined material specification with a specified bore size and length.
  • Item 6 is a 'trigger' type valve which acts as an air flow regulator, actuated within easy reach from the handle Item 8.
  • Item 9 Fig 1 is a typical 'tee' section pipe or fitting of a specified size, to which is coupled by a suitable method to a 'pneumatic air coupling' Item 10, which permits quick and easy connection to a suitable hose or pipe (not shown), connected to a specified size of compressor, working on a volume output between 0.02-0.03 cubic metres per second (JVr/ s ).
  • Item 5 Fig 1 opposite end is secured to the housing of the vacuum amplifier Item 4 by welding or other suitable manner, such that Item 5 becomes an integral part of Item 4.
  • Item 7 Fig 1 manufactured to a specified size both in bore and length from a defined and suitable material (to that of Item 5).
  • Item 7 is spaced at a specified distance from Item 5 and is represented by the dimensions 'x' and 'y'. One end of Item 7 is secured to the housing of Item 4 ? by 'welding' or other suitable method, such that Item 7 is an integral part of Item 4.
  • Item 8 Fig 1 is a 'spacer' / 'handle' (referred to earlier), manufactured from a suitable material such as steel or the like and is attached by welding or other similar method to Items 5 and 7. This spacer covered on its outer surface with a plyable material will act as a 'handle' for supporting the equipment during operation.
  • Item 11 Fig 1 is a specified 'ball-valve' or 'air flow regulator' and is fitted to the opposite end of Item 7.
  • the ball valve / regulator is coupled by a suitable method to a 'quick' release fitting of a specified size.
  • Item 12 Fig 1 is a flexible hose of a specified size, of which one end is coupled by a suitable method to Item 11. The opposite end is attached by a suitable method to the 'vacuum inlet' Item 13 Fig 1.
  • This 'u' shaped pipe is manufactured from a specified material of a defined bore size, whose external dimensions are represented by the dimensions 'C and 'D'.
  • Item 14 is an 'inlet hole' of a specified size within the outer circumference within the lower end of the component 13 to the inner surface only and is not that of a through hole (through one wall only of the pipe 13).
  • a 'ball- valve' / 'air flow regulator' Item 15 of a specified size.
  • Item 16 Fig 1 is a flexible hose of a specified size (smaller in diameter than that of Item 12 Fig 1). To which one end of Item 16 is attached by suitable means to Item 9 Fig 1 with the opposite end suitably coupled to an 'in-line' air filter Item 17 Fig 1.
  • the flexible hose Item 16 is attached by a suitable method to Item 17 and the 'rear' or 'back' of a specified safety helmet Item 19.
  • 'In-line' between Item 17 and Item 19 is fitted a specified 'pre-set' air pressure regulator Item 18, this regulator for safety reasons is not adjustable and is pre-set at between 0.54 - 0.68 bar (8 - 10 P.S.I).
  • FIG 2 shows the vacuum amplifier Item 4 Fig 1 in greater detail, as this represents the 'nucleus' or 'heart' of the invention.
  • Item 20 is the outer case of the amplifier and is manufactured from a specified material to a defined size. ;
  • the 'tubes' or 'pipes' Items 5 and 7 Fig 1 enter the case Item 20 and are secured in position to the dimensions represented by 'F and 'F Fig 2.
  • Item 21 Fig 2 is a 'concave' shaped deflector attached by a suitable method to the inner face of Item 20.
  • Item 22 Fig 2 is a tube manufactured to a specified size from a suitable material with a bore size smaller than that of Item 7, and is secured in position by a suitable method such as 'weld' or the like to dimension 'G'.
  • Item 23 is an integral part of the case Item 20 Fig 2 and has an internal thread size to suit the external thread at one end of the nozzle Item 3, such that Item 3 can be screwed in position ready for use.
  • An alternative method such as a 'nut' and 'olive' type fitting could also be used.
  • the vacuum inlet tube Item 13 Fig 1 can be easily inserted into a suitable 'drum' or container (not shown), and is the reservoir to which is added the 'blasting' or 'cleaning' medium.
  • Air at varying volumes will pass through into the vacuum amplifier Item 4 Fig's 1 and 2 creating a vacuum resulted from the 'venturi'. This will allow the cleaning medium from the vacuum inlet tube Item 13 via the hole 14 to be drawn-up and pass into the nozzle Item 3 at varying 'volumes', dependent on the 'setting' or 'control' of the valve Item 6 Fig 1.
  • the whole of the 'Blast Cleaning System' Item's 3 to 11 Fig 1 can be proportionally manufactured to a much smaller size and operated in a static manner, for example, the Blast Cleaning System could be attached to an enclosed box section static duct and the Items such as steel sections and the like could be passed through, for relevant cleaning to their surfaces.
  • FIG. 3 A further embodiment of the invention is represented in FIG 3.
  • FIG 3 shows a front elevation of the water injector on a blast cleaning system as aforesaid described.
  • the water injector Item 26 FIG 3 delivers water (not shown) into the system, and is operated from vacuum pressure.
  • FIG 3 the water feed pipe manufactured from a suitable material to satisfy the design criteria, to a defined size.
  • the volume of the water feed can be controlled by a simple valve Item 25 to a defined specification and size.
  • the water flows under pressure via the injector 26 FIG 3 into the receiver Item 27, and is emitted under pressure from the blast nozzle/oarrel Item 28 FIG 3.
  • the main function of the water injector Item 26, is to suppress the dust (not shown) generated from the blasting of 'stone brickwork' and all similar masonry surfaces to be cleaned which tend to expel large volumes of dust particles.
  • By re son of positioning the injector Item 26 FIG 3 in a specified position will allow encapsulation: of each abrasive particle (not shown), and will therefore eliminate delivering of the .cleansing abrasive as a 'slurry'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

La présente invention concerne un système de décapage par jet comprenant une chambre de mélange (4). Dans une enveloppe extérieure (20) sont positionnés des tubes d'alimentation parallèles (5, 7). Un jet d'air sortant du tube (5) entraîne un mélange d'air et de milieu de décapage abrasif provenant de l'autre tube (7). Une plaque déflectrice (21) guide le jet entraîné dans le jet d'entraînement. Un injecteur d'eau (26) fournit de l'eau dans le système afin d'éviter les poussières. Un casque (19) est couplé par l'intermédiaire d'un filtre à air (17) et une soupape de régulation de pression (18) à l'alimentation en air sous pression.
PCT/GB2002/002233 2001-10-15 2002-05-16 Systeme de decapage par jet WO2003033211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0124618A GB2370525B (en) 2000-11-09 2001-10-15 Blast cleaning system
GB0124618.0 2001-10-15

Publications (1)

Publication Number Publication Date
WO2003033211A1 true WO2003033211A1 (fr) 2003-04-24

Family

ID=9923779

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/002233 WO2003033211A1 (fr) 2001-10-15 2002-05-16 Systeme de decapage par jet

Country Status (1)

Country Link
WO (1) WO2003033211A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78632E (fr) * 1960-11-03 1962-08-17 Vacu Blast Ltd Appareil de sablage à sec perfectionné
US3828478A (en) * 1973-06-25 1974-08-13 E Bemis Fluid-jet-abrasive device and system
GB2077158A (en) * 1980-06-07 1981-12-16 Wood Group Structural Coatings Wet grit blasting
EP0335503A2 (fr) * 1988-03-02 1989-10-04 Cleaning Technology Limited Nettoyage ou coupage par projection de particules abrasives
US5484325A (en) * 1993-10-07 1996-01-16 Church & Dwight Co., Inc. Blast nozzle containing water atomizer for dust control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78632E (fr) * 1960-11-03 1962-08-17 Vacu Blast Ltd Appareil de sablage à sec perfectionné
US3828478A (en) * 1973-06-25 1974-08-13 E Bemis Fluid-jet-abrasive device and system
GB2077158A (en) * 1980-06-07 1981-12-16 Wood Group Structural Coatings Wet grit blasting
EP0335503A2 (fr) * 1988-03-02 1989-10-04 Cleaning Technology Limited Nettoyage ou coupage par projection de particules abrasives
US5484325A (en) * 1993-10-07 1996-01-16 Church & Dwight Co., Inc. Blast nozzle containing water atomizer for dust control

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