EP4205905A1 - Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif - Google Patents

Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif Download PDF

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Publication number
EP4205905A1
EP4205905A1 EP21218277.8A EP21218277A EP4205905A1 EP 4205905 A1 EP4205905 A1 EP 4205905A1 EP 21218277 A EP21218277 A EP 21218277A EP 4205905 A1 EP4205905 A1 EP 4205905A1
Authority
EP
European Patent Office
Prior art keywords
cutting
abrasive
pressure
nozzle
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.)
Pending
Application number
EP21218277.8A
Other languages
German (de)
English (en)
Inventor
ukasz BOROWIK
Piotr UCZAK
Piotr CIEGIENKA
Tomasz Borowik
Tomasz HARTWIG
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.)
Sr Robotics Sp ZOO
Original Assignee
Sr Robotics Sp ZOO
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 Sr Robotics Sp ZOO filed Critical Sr Robotics Sp ZOO
Priority to EP21218277.8A priority Critical patent/EP4205905A1/fr
Publication of EP4205905A1 publication Critical patent/EP4205905A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0069—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with means for preventing clogging of the equipment or for preventing abrasive entering the airway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0076—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier the blasting medium being a liquid stream

Definitions

  • the present inventions relate to an underwater, remote-controlled high pressure cutting device with addition of abrasive material and to an abrasive material feeding method as well as to a cutting method, in order to increase energy of an abrasive fluid jet affecting on a surface unit of a construction or an object, which is cut (Se - specific energy), enabling to manoeuvre with the cutting device by an underwater ROV without exerting a torsional force on the ROV resulting from the weight of the device in the water, consisting of a clamping system to a surface of an object capable to compensate the jet force generated by a high-pressure fluid jet and maintaining adhesion despite the loss of energy supply, as well as system of feeding underwater cutting nozzle with abrasive material.
  • Abrasive water injection jets AWAJ
  • AWSJ abrasive water suspension jets
  • the abrasive material is applied to the water.
  • the abrasive agent is fed through a pneumatic conduit connected directly to the cutting nozzle, in which the mixing chamber is located. An abrasive agent is sucked in due to the vacuum produced by the rushing liquid and it hits a material being cut at high speed.
  • the concentration of abrasive in relation to water is assumed to be about 10%.
  • AWIJ cutting is almost exclusive method.
  • an abrasive agent is mixed with water under pressure in a special pressure tank and then a suspension of water with abrasive is transported to the nozzle under pressure.
  • the concentration of the abrasive in relation to the water is, as in the case of AWIJ, 10%.
  • the main problem in the use of AWIJ under water is the water ingress into the pneumatic conduit, which supplies the abrasive agent to the cutting nozzle.
  • water is supplied from a high-pressure pump or a pressure multiplier through high-pressure hoses to the cutting nozzle, in which, due to the reduction of the flow diameter, the liquid speed is increased, which creates a vacuum in the laterally connected pneumatic conduit through which the abrasive material is sucked in.
  • abrasive material and air sucked in from the pneumatic conduit is ejected at high speed towards the object or structure being cut.
  • the underwater, remote-controlled, abrasive cutting device is characterized by that:
  • detachable magnets In order to attach the cutting device to a steel structure or an object with a ferromagnetic coating, such as a UXO object, detachable magnets are used, the magnetic field of which is neutralized only when disconnected. The neutralization of the magnetic field takes place by applying current to a coil wound around the magnet, and the same current application generates a field opposite to the field of a permanent magnet, thanks to which the cutting device can be detached from the steel structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP21218277.8A 2021-12-30 2021-12-30 Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif Pending EP4205905A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21218277.8A EP4205905A1 (fr) 2021-12-30 2021-12-30 Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21218277.8A EP4205905A1 (fr) 2021-12-30 2021-12-30 Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif

Publications (1)

Publication Number Publication Date
EP4205905A1 true EP4205905A1 (fr) 2023-07-05

Family

ID=80447411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21218277.8A Pending EP4205905A1 (fr) 2021-12-30 2021-12-30 Dispositif de coupe sous haute pression, sous-marin et commandé à distance, utilisant un produit abrasif, et un procédé de coupage et d'alimentation en matériau abrasif

Country Status (1)

Country Link
EP (1) EP4205905A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209952A (en) * 1977-09-12 1980-07-01 F. A. Hughes And Company Limited Underwater jet blasting apparatus
US4545317A (en) * 1981-04-01 1985-10-08 Gkss-Forschungszentrum Geesthacht Gmbh Device for treating the surfaces of structures and ships
EP0335503A2 (fr) * 1988-03-02 1989-10-04 Cleaning Technology Limited Nettoyage ou coupage par projection de particules abrasives
FR2699852A1 (fr) * 1992-12-29 1994-07-01 Gaz De France Procédé et dispositif d'usinage à jet de fluide haute pression asservi.
US6049580A (en) * 1995-11-30 2000-04-11 Compagnie Generale Des Matieres Nucleaires Apparatus for remote dismantling of irradiated structures
US6358120B1 (en) * 2000-06-14 2002-03-19 Framatome Anp. Inc. Vision enhanced under water waterjet
US20130196274A1 (en) 2012-01-13 2013-08-01 Broco, Inc. Underwater torch
EP2755802B1 (fr) 2011-09-14 2016-04-06 ANT Applied New Technologies AG Dispositif pour la coupe avec jet d'eau contenant abrasiv
US20160144439A1 (en) 2012-12-12 2016-05-26 Oceaneering International, Inc. Underwater Diamond Wire Saw
US9446500B2 (en) * 2012-09-25 2016-09-20 G.D.O. Inc. Underwater abrasive entrainment waterjet cutting method
KR20170067691A (ko) * 2017-05-15 2017-06-16 유한기술주식회사 수중 금속 구조물 절단용 워터젯 장치 및, 이를 이용한 수중 금속 구조물 절단 공법

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209952A (en) * 1977-09-12 1980-07-01 F. A. Hughes And Company Limited Underwater jet blasting apparatus
US4545317A (en) * 1981-04-01 1985-10-08 Gkss-Forschungszentrum Geesthacht Gmbh Device for treating the surfaces of structures and ships
EP0335503A2 (fr) * 1988-03-02 1989-10-04 Cleaning Technology Limited Nettoyage ou coupage par projection de particules abrasives
FR2699852A1 (fr) * 1992-12-29 1994-07-01 Gaz De France Procédé et dispositif d'usinage à jet de fluide haute pression asservi.
US6049580A (en) * 1995-11-30 2000-04-11 Compagnie Generale Des Matieres Nucleaires Apparatus for remote dismantling of irradiated structures
US6358120B1 (en) * 2000-06-14 2002-03-19 Framatome Anp. Inc. Vision enhanced under water waterjet
EP2755802B1 (fr) 2011-09-14 2016-04-06 ANT Applied New Technologies AG Dispositif pour la coupe avec jet d'eau contenant abrasiv
US20130196274A1 (en) 2012-01-13 2013-08-01 Broco, Inc. Underwater torch
US9446500B2 (en) * 2012-09-25 2016-09-20 G.D.O. Inc. Underwater abrasive entrainment waterjet cutting method
US20160144439A1 (en) 2012-12-12 2016-05-26 Oceaneering International, Inc. Underwater Diamond Wire Saw
KR20170067691A (ko) * 2017-05-15 2017-06-16 유한기술주식회사 수중 금속 구조물 절단용 워터젯 장치 및, 이를 이용한 수중 금속 구조물 절단 공법

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