EP1199136B1 - Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension - Google Patents

Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension Download PDF

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Publication number
EP1199136B1
EP1199136B1 EP00122839A EP00122839A EP1199136B1 EP 1199136 B1 EP1199136 B1 EP 1199136B1 EP 00122839 A EP00122839 A EP 00122839A EP 00122839 A EP00122839 A EP 00122839A EP 1199136 B1 EP1199136 B1 EP 1199136B1
Authority
EP
European Patent Office
Prior art keywords
pressure vessel
abrasive
fact
accordance
pipe
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
EP00122839A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1199136A1 (de
Inventor
Marco Linde
Thorsten Rentsch
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.)
ANT Applied New Technologies AG
Original Assignee
ANT Applied New Technologies AG
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 ANT Applied New Technologies AG filed Critical ANT Applied New Technologies AG
Priority to EP00122839A priority Critical patent/EP1199136B1/de
Priority to DE50006171T priority patent/DE50006171D1/de
Priority to AT00122839T priority patent/ATE264729T1/de
Priority to ES00122839T priority patent/ES2220318T3/es
Publication of EP1199136A1 publication Critical patent/EP1199136A1/de
Priority to US10/189,109 priority patent/US6857944B2/en
Application granted granted Critical
Publication of EP1199136B1 publication Critical patent/EP1199136B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier

Definitions

  • the present invention relates to the technical field of water abrasive suspension blasting (WASS) and there especially the bypass principle for the production from WASS.
  • WASS water abrasive suspension blasting
  • the water abrasive slurry jetting used in dismantling technology under and over water.
  • Example bullet shells disassembled to avoid flying sparks Remove and dispose of explosives located therein.
  • proven water abrasive suspension blasting has also been found in the disposal of nuclear power plants, especially when disassembling the pressure vessel.
  • Further applications are the offshore technology, as well as in the field of the petrochemical industry, when it comes to disconnecting in an explosive environment.
  • the devices operating on the bypass principle essentially consist of from a high-pressure pump, which water as a carrier liquid in a Main line with throttle body and parallel in a secondary line (bypass) promotes.
  • the secondary line opens into a pressure vessel in which the abrasive is located, wherein the guided in the secondary line liquid flow passes through the pressure vessel, there takes along abrasive and a Line from the pressure vessel is fed back to the main line. be wearing
  • This suspension is via a discharge nozzle, which has a flexible Lead, if necessary, several hundred meters away from the device can be arranged.
  • the carrier liquid from a reservoir or from the water supply network usually in sufficient quantity for continuous operation of the Device is available for a long time, the amount of the Available abrasive depending on the size of the pressure vessel. If the abrasive contained in the pressure vessel is used up, must the pressure vessel is filled and the water abrasive suspension jets during be interrupted this time.
  • a generic device is known in the only a pressure vessel is provided, before filling the high-pressure pump switched off and thus the suspension jet is interrupted.
  • a circulation path is provided, in which the abrasive together with liquid from a reservoir into the pressure vessel and is pumped from there back to the reservoir.
  • the cable implementation designed by the pressure vessel so that the abrasive in this settles, whereas the liquid again in the return to Reservoir is performed.
  • the device-like construction of the main stream decoupled circulation path for filling the pressure vessel is also high.
  • the valves provided within the circulation path must be constructive be designed so that they are in their function through that there too inevitably abrasive abrasives are not impaired.
  • the present invention has the object to provide a method for filling a pressure vessel, with this easy, fast and with little device overhead can be filled.
  • a corresponding device be created, with which this method is executable, which is inexpensive in the production and constructive largely against Abrasivstoffablagerache is protected.
  • the basic idea of the present invention is based on the state of the art Kunststoffer known circulation path for filling the pressure vessel with abrasive to refrain altogether and to provide gravity support instead, which manages without an expensive and wear-prone pump and the by means of a small number of shut-off valves cost in the device is einkliederbar.
  • a filling container Hopper
  • the filling container must therefore be arranged above the pressure vessel be, wherein the abrasive agent via a downpipe, from the lower Area of the filling container leads to the upper area of the pressure vessel, in the Pressure vessel arrives.
  • the abrasive to be filled in as such from the downwardly tapered filling container in the down pipe and then get into the pressure vessel is expediently
  • the abrasive in the filling a carrier liquid such as Example water added to the gravity-induced conveying process facilitate.
  • the abrasive contained in the pressure vessel at the end of the operation by Water is replaced, it is not empty when refilling with abrasive but water-filled, so it's not just the abrasive in the pressure vessel filled, but also the volume corresponding volume Water are led out. In the simplest form, this can also be done by the Downpipe itself. However, preferred is a separate line to Removal of the displaced carrier liquid provided so that when filling the Gravity-promoted mass flow of the abrasive not by the otherwise in Counter direction ascending current of the displaced carrier fluid braked becomes. So it can be essential when providing a separate drain line higher filling speeds can be achieved.
  • shut-off valve in the down pipe intended.
  • a corresponding shut-off valve must then also in the drain line be provided if such is provided. It can be used as a drain line serve a part of the secondary line, which opens into the pressure vessel. It is understood that the shut-off valve then outside the area of the secondary line must lie. By this measure, the number of in the pressure vessel opening lines are minimized, which is already static Reasons is advantageous.
  • the downpipe between filling tank and pressure vessel should be largely run perpendicular, because then the weight of the replenished abrasive acting in the conveying direction and blockages of the lines avoided can be. Due to the system, it is expedient if the downpipe from Bottom of the filling container in essence vertical and straight into the lid or the top of the pressure vessel opens. It can, however, be static or for other reasons be required to relocate the mouth. In these cases, make sure that the mouth of the downpipe in the Pressure vessel as far above and the mouth of the downpipe in the Filling tank as far as possible below.
  • the pressure vessel on the bottom side in the manner of a Funnel, that is, to run downwards and the part of the secondary line, which directs the abrasive into the main stream to form so that this Part of the laxative branch line with small distance above the ground empties. It is particularly advantageous if this laxing secondary line as formed substantially vertical riser within the pressure vessel is that centered at least in its mouth area in relation to the Soil rejuvenation should be arranged.
  • shut-off valves in the downpipe in series one behind the other and connect a purge line in between. Then you can join a jam of abrasive in the downpipe first that the filling container Closer shut-off valve are closed, after which via the purge line carrier liquid under pressure is introduced into the system, so at the end of the Rinsing the pressure vessel near the shut-off valve including down pipe as well as the drain line and valve is free of abrasive.
  • shut-off valves namely the pressure tank side Shut-off valve in the downpipe and the other valve in the drain line closed.
  • the latter valves are high pressure valves, the Due to the design, it is particularly susceptible to abrasive deposits the valve seats are.
  • the filling container is designed as a swap body is, because then to exchange only an empty against a full Fill container is to be replaced, without that within the device with abrasive to handle.
  • the device shown in the figure is used to generate a beam of a Suspension of a carrier liquid, usually water, and an abrasive, For example, corundum or river sand under high pressure.
  • the carrier liquid 1 is taken from a container 2 or from a (not shown) Line network of a high-pressure pump 3, which typically has a Pressure generated between 200 and 2000 bar and more on the output side.
  • a Line 4 is the high-pressure carrier fluid 1 from the pump 3 through a check valve 5 in parallel in a main line 6 and a Secondary line 7 promoted.
  • a throttle body 8 is provided, that is dimensioned and adjusted so that in addition to one in operation in the Main line 6 forming a main current through the secondary line 7 leading Adjusts stream, which is located in a pressure vessel 10 Abrasivstoff 9, this feeds the main current and then as a total current at a discharge nozzle 11 exiting at high pressure jet a Suspension of carrier liquid 1 and 9 to form abrasive.
  • the secondary line 10 has in the conveying direction 12 of the flowing through them Maustroms a shut-off valve 13 and a safety device 14, which opens when a predetermined maximum pressure is exceeded.
  • the Secondary line 7 opens into the top of the pressure vessel 10.
  • the pressure vessel 10 has an approximately tapered bottom 15, over whose lowest point at a short distance a riser 16 opens, the over a line 17 is connected to the main line 6.
  • the line 17 is part of Secondary line 7.
  • the suspension then formed from carrier liquid 1 and abrasive flows 9 via a line 28 to the discharge nozzle 11.
  • the line 28 connects the im Substantially stationary part of the device with the movable arranged Discharge nozzle 11 and can be several hundred meters long. Stationary in the sense of the invention means that the device stands still during operation, In principle, however, this is transportable, for example on a vehicle or arranged in a container or support frame.
  • a filling container 18 is provided, which is connected via a downpipe 19 to the pressure vessel 10.
  • the downpipe 19 is arranged substantially vertically and opens in the Top of the pressure vessel, but with a small distance below the Top inside, so below the junction of the secondary line 7 in the Pressure vessel 10.
  • a Hochdruckabsperrventil 20 is provided in the downpipe 19 as well another the filling container 18 associated shut-off valve 21 is provided. Between these two series-connected shut-off valves 20 and 21 opens a purge line 22.
  • a clutch 23 is provided between the shut-off valves 20 and 21, a clutch 23 is provided between the shut-off valves 20 and 21, a clutch 23 is provided.
  • the filling container 18 is a swap body trained and can together with the shut-off valve 21 via the coupling 23 are separated from the rest of the device to a blank against a replace full filling container 18 or the filling container for transport purposes to remove the device.
  • the purge line 22 is not shown Hose coupling connected and therefore can also from Filling container 18 are separated.
  • a drain line 24 is provided, which to the pressure vessel 10 leading part of the secondary line 7 via a high-pressure shut-off valve 25 with an opening into the open or in a collecting container line 26 connects.
  • shut-off valve 13 For refilling abrasive 9, the shut-off valve 13 is first closed, then the high-pressure pump 3 is switched off and the shut-off valve 25th open.
  • the previously connected by means of the coupling 23 to the device and filled with abrasive 9 filling container 18 is opened by opening the valves 21 and 20 with the interior of the pressure vessel 10 conductively connected.
  • the filling container 18 is dimensioned so that the abrasive contained therein 9 can be completely filled in the pressure vessel 10, so that after the Emptying the filling container 18, only the shut-off valves 20, 21 and 25 are closed, the high pressure pump 3 is turned on and then the check valve thirteenth need to be opened in order to generate the device again High pressure jet of suspension certain state offset.
  • the High pressure valve 20 is structurally designed so that there is no abrasive deposited, so that this gravity conveyed into the pressure vessel 10th sags. About the high pressure valve 25 flows only carrier liquid, so that this valve also not by abrasive or its Deposits is charged.
  • the device described above therefore requires the always required High pressure pump 3 no more expensive pumps, neither for the filling process still for the usually not even necessary Spiilvorgang.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipeline Systems (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Disintegrating Or Milling (AREA)
EP00122839A 2000-10-20 2000-10-20 Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension Expired - Lifetime EP1199136B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00122839A EP1199136B1 (de) 2000-10-20 2000-10-20 Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension
DE50006171T DE50006171D1 (de) 2000-10-20 2000-10-20 Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension
AT00122839T ATE264729T1 (de) 2000-10-20 2000-10-20 Verfahren zum befüllen eines druckbehälters und vorrichtung zur erzeugung eines strahls einer suspension
ES00122839T ES2220318T3 (es) 2000-10-20 2000-10-20 Procedimiento para llenar un deposito a presion y dispositivo para generar un chorro de una suspension.
US10/189,109 US6857944B2 (en) 2000-10-20 2002-07-02 Method for filling a pressure container and device for producing a jet of a suspension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00122839A EP1199136B1 (de) 2000-10-20 2000-10-20 Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension
US10/189,109 US6857944B2 (en) 2000-10-20 2002-07-02 Method for filling a pressure container and device for producing a jet of a suspension

Publications (2)

Publication Number Publication Date
EP1199136A1 EP1199136A1 (de) 2002-04-24
EP1199136B1 true EP1199136B1 (de) 2004-04-21

Family

ID=32299418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00122839A Expired - Lifetime EP1199136B1 (de) 2000-10-20 2000-10-20 Verfahren zum Befüllen eines Druckbehälters und Vorrichtung zur Erzeugung eines Strahls einer Suspension

Country Status (5)

Country Link
US (1) US6857944B2 (es)
EP (1) EP1199136B1 (es)
AT (1) ATE264729T1 (es)
DE (1) DE50006171D1 (es)
ES (1) ES2220318T3 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008068368A (ja) * 2006-09-14 2008-03-27 Hitachi Plant Technologies Ltd ブラスト装置
EP2168722A1 (en) * 2008-09-29 2010-03-31 Cold Cut Systems Svenska AB System for mixing additive with liquid
WO2013037405A1 (de) 2011-09-14 2013-03-21 Ant Applied New Technologies Ag Wasser-abrasiv-suspensions-schneidanlage
EP2755801B1 (de) 2011-09-14 2015-10-21 ANT Applied New Technologies AG Wasser-abrasiv-suspensions-schneidanlage und verfahren zur zufuhr eines abrasivmittels in eine wasser-abrasiv-suspensions-schneidanlage
EP2814637B1 (de) * 2012-02-15 2015-11-25 ANT Applied New Technologies AG Wasser-abrasiv-suspension-schneidanlage
US11260503B2 (en) 2013-12-20 2022-03-01 Flow International Corporation Abrasive slurry delivery systems and methods
US10981259B2 (en) * 2016-05-05 2021-04-20 Wazer Inc. Waterjet systems and methods
AU2017407668A1 (en) 2017-03-31 2019-10-17 Ant Applied New Technologies Ag Water-abrasive-suspension cutting system and method for water-abrasive-suspension cutting
JP7097384B2 (ja) 2017-03-31 2022-07-07 エーエヌティー アプライド ニュー テクノロジーズ エージー ウォータアブレイシブサスペンションジェット式切断装置およびウォータアブレイシブサスペンションジェット式切断方法
AU2017407669A1 (en) 2017-03-31 2019-10-17 Ant Applied New Technologies Ag Water abrasive suspension cutting system and method for water abrasive suspension cutting
AU2017406387A1 (en) 2017-03-31 2019-10-17 Ant Applied New Technologies Ag Water-abrasive-suspension cutting system
WO2023194721A1 (en) 2022-04-04 2023-10-12 Wellcut Solutions Limited A rotating cutting head and cutting system as well as a method of cutting a hollow, longitudinal object from within

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US5207034A (en) * 1990-06-25 1993-05-04 Lynn William R Pliant media blasting device
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US6123602A (en) * 1998-07-30 2000-09-26 Lucent Technologies Inc. Portable slurry distribution system

Also Published As

Publication number Publication date
EP1199136A1 (de) 2002-04-24
US6857944B2 (en) 2005-02-22
ES2220318T3 (es) 2004-12-16
ATE264729T1 (de) 2004-05-15
US20040005849A1 (en) 2004-01-08
DE50006171D1 (de) 2004-05-27

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