EP1735579B1 - Procede pour nettoyer les tuyaux d'un echangeur thermique au moyen d'un produit de sablage et dispositif correspondant - Google Patents

Procede pour nettoyer les tuyaux d'un echangeur thermique au moyen d'un produit de sablage et dispositif correspondant Download PDF

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Publication number
EP1735579B1
EP1735579B1 EP05728683A EP05728683A EP1735579B1 EP 1735579 B1 EP1735579 B1 EP 1735579B1 EP 05728683 A EP05728683 A EP 05728683A EP 05728683 A EP05728683 A EP 05728683A EP 1735579 B1 EP1735579 B1 EP 1735579B1
Authority
EP
European Patent Office
Prior art keywords
pipe
jet nozzle
outlet opening
carrier
heat exchanger
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.)
Not-in-force
Application number
EP05728683A
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German (de)
English (en)
Other versions
EP1735579A1 (fr
Inventor
Georg KRÄMER
Konrad Meier-Hynek
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.)
Areva GmbH
Original Assignee
Areva NP GmbH
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 Areva NP GmbH filed Critical Areva NP GmbH
Publication of EP1735579A1 publication Critical patent/EP1735579A1/fr
Application granted granted Critical
Publication of EP1735579B1 publication Critical patent/EP1735579B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • 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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/163—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from internal surfaces of heat exchange conduits
    • 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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • 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
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents

Definitions

  • the invention relates to an experienced for cleaning a heat exchanger by means of a blasting agent and an apparatus for performing the method.
  • Heat exchanger tubes must be cleaned from deposits from time to time.
  • chemical cleaning methods are available, but can be implemented in the large number of heat exchanger tubes and a corresponding number of openings and with greater technical complexity. Therefore, replacement pipes are primarily mechanically cleaned.
  • blasting methods are often used in which a blasting medium is blown through a pipe with the aid of a blasting nozzle attached to a pipe end. Such a method is for example in DE 195 46 788 A1 described.
  • As blasting agent for example steel or corundum particles are used.
  • a collecting device is in DE 198 37 683 C2 described.
  • a collecting device is in DE 198 37 683 C2 described.
  • a conventional cleaning process as in Fig. 1 shown, two fixed to a support 1 jet nozzles 2, for example, attached to the inlet side 3 of a heat exchanger 4.
  • the jet nozzles 2 are narrowed at their end pointing in the beam direction 5 to a cylindrical neck 6, which is inserted into the pipe end 7.
  • the jet nozzles 2 carry an inlet opening connected to a delivery hose 8 9.
  • a venturi 12 is arranged with a throttle point 13.
  • the object of the invention is to provide an alternative method and an alternatively configured device for carrying out the method mentioned, with which in particular a more efficient cleaning of a heat exchanger is possible.
  • This object is achieved with the features of claim 1 and claim 5.
  • This embodiment makes it possible to apply to a pipe to be cleaned with a large stream of jet media. With conventional jet nozzles, this is not possible to this extent. There, the velocity of the stream of blasting medium present in a conveying hose connected to the blasting nozzle is greatly increased by a constriction in a venturi nozzle which is relatively small. The consequences are that jet particles with high kinetic energy are ejected. However, these particles are already braked within a relatively short pipe section. Then there is only a stream of abrasive with low particle concentration available for the pipe cleaning. This is different with the invention.
  • a configuration which allows large outlet openings provides that the jet nozzle with a contact surface comprising the outlet opening to an end face of a pipe end is pressed.
  • a narrowed pipe is inserted into a pipe end, wherein the outlet opening of the nozzle has to be reduced at least by a dimension corresponding to its wall thickness relative to the cross-sectional area of the pipe.
  • the time required for the cleaning process can be reduced by cleaning several pipes at the same time.
  • This is accomplished by using a plurality of jet nozzles, which are held on a carrier in the tube grid of the heat exchanger.
  • the jet nozzles are fixed in position by being introduced into a pipe end with a narrowed neck
  • a fixing bolt projecting in the jet direction is provided, which is inserted into a pipe end during cleaning. This is easily possible if the fixing bolt is arranged on the carrier at a position corresponding to the pipe grid.
  • a throttle-free jet nozzle is accomplished in that the jet nozzle is penetrated by a flow channel bounded by an inlet and an outlet opening, wherein the flow channel has a substantially constant, approximately the size of the outlet opening corresponding cross-sectional area.
  • the outlet opening of the jet nozzle is comprised of a contact surface, which is pressed against the end face of the pipe to be cleaned during the execution of the method.
  • this contact surface is arranged by a radially outwardly arranged, axially projecting collar. The contact surface and the collar thereby form a receptacle for a pipe end. This embodiment allows for a better sealing of the pipe end and on the other hand an additional position fixing of the device on the heat exchanger.
  • a rotation of a support carrying a plurality of jet nozzles around the fixing bolt as a rotation axis is thereby prevented.
  • the recording and the outlet opening-containing region consists of an elastomer.
  • tolerances and unevenness in the end face region of a pipe end can be compensated.
  • the elastomer region is preferably formed by a tube section-shaped end piece which is positively connected to the jet nozzle.
  • the device shown comprises a jet head with a carrier 21 in which two jet nozzles 22 are mounted are. Also conceivable are jet heads with only one jet nozzle or more than two jet nozzles.
  • the carrier is essentially formed by a hollow cuboid housing 23.
  • the housing 23 is penetrated by two mutually parallel boreholes 24 receiving a respective jet nozzle 22.
  • a jet nozzle 22 is designed substantially as a pipe-section-shaped housing 25.
  • the housing 25 has three different longitudinal sections, wherein a middle section 26 has a larger diameter than the two other sections, namely a front section 27 and a rear section 28.
  • the transition between the central portion 26 and the tapered portions 27, 28 is formed in each case by a radial shoulder 29, 30.
  • a stop flange 32 radially inwardly.
  • the middle section 26 facing side of this stop flange cooperates with the radial shoulder 29 in the sense of Axialfix ist of the housing 25.
  • the housing 25 With the radial shoulder 30, the housing 25 abuts against a cover part 33, that the support housing 23 closes the rear side.
  • an O-ring seal 31 is arranged between the cover part 33 and the rear portion 28 of the jet nozzle 22, a circumference of the portion 27 comprehensive elastomeric seal 34 is inserted.
  • a dovetail-shaped in cross-section groove 35 is introduced, in which a substantially tubular portion-shaped end piece 36 of elastomeric material rests positively with its one end.
  • the front portion 27 is penetrated by a flow channel 37.
  • the central longitudinal axis 38 of the flow channel forms at the same time the central longitudinal axis of the jet nozzle housing 25.
  • the flow channel 37 is bounded on the front by an outlet opening 39 and at its other end by an inlet opening 40. It essentially has a constant cross-sectional area or a constant diameter 42.
  • the cross-sectional area or the diameter 42 corresponds to the cross-sectional area or the diameter 43 of a delivery hose 46 screwed into an internal thread 45 of the middle section 26 with an external thread 44.
  • the delivery hose 46 lies with its front end face 47 at a transition area between section 26 and section Radial shoulder 48 protrudes from the radial shoulder 48 in the axial direction into the projection 40, which has an annular cross section in cross-section and which digs into the material of the delivery hose 46, an elastomer material. This improves the seal between the delivery hose 46 and the housing portion 26.
  • the diameter 50 of the inlet opening 40 is slightly larger than the diameter 43 of the delivery hose 46. The diameter difference is, for example, such that it widening of the diameter 43 upon exposure of the hose with a corresponds to pressurized stream of blasting medium. This ensures that a blasting agent stream does not impinge on a disturbing, protruding into the flow channel housing edge.
  • the adjoining the inlet opening 40 region 52 of the flow channel 37 is tapered slightly conically to about its center, with the region 52 is followed by a cylindrical channel region with the diameter 42.
  • the carrier 21 from the inlet side 53 or also the exit side of a heat exchanger 54 is arranged. If it concerns the heat exchanger of a nuclear power plant, then the carrier 21 is usually held by a manipulator (not shown), to which the carrier 21 with a fastening device 55 (FIG. Fig. 5 ) is fixed.
  • the tubes 56 of a heat exchanger are arranged in a regular grid and pass through with their ends a holding plate 57. From this they stand with a projection 58 before.
  • the jet nozzles 22 are spaced apart on the support 21 arranged so that they can be placed on the end faces 59 of two by a pipe 56a separated pipes 56b.
  • the end piece 36 has for this purpose a cooperating with the end face 59 bearing surface 60, which comprises the outlet opening 39.
  • the contact surface 60 extends transversely to the central longitudinal axis 38.
  • the contact surface 60 is surrounded by a collar 62 which projects in the axial or jet direction or in the beam direction 5.
  • the collar 62 is wedge-shaped in cross-section, wherein it has a radially inwardly directed inclined surface 63 and a radially outwardly directed inclined surface 61.
  • the inclined surface 63 serves as an insertion bevel when placing the jet nozzle 22 on a pipe end. This lies during the cleaning in one of the stop surface 60 and the collar 62 enclosed recess 64 a.
  • the collar 62 rests with a cylindrical edge portion 65 on the outer circumference of a tube 56b.
  • the inclined surface 63 conforms to a weld 66, with which the tubes 56 are fixed to the support plate 57.
  • the collar 62 thus acts as a sealing lip which cooperates with the outer periphery and the weld 66 of a tube 56b. So that the collar can not expand radially when pressurized, it is completely surrounded by a stiffening sleeve 67.
  • the stiffening sleeve 67 is located with one of hers the carrier 21 facing the end radially inwardly projecting flange 68 in a radial groove 71 of the end piece 36 a.
  • the flange 68 applied to the front side of the stiffening sleeve 67 is chamfered and forms a flush with the inclined surface 61 of the collar 62 inclined surface 69.
  • the bevel of the tail in the form of the inclined surfaces 61 and 69 prevents it with a weld 66 a of an adjacent tube 56 a comes into contact and thereby a sealing abutment of an end piece 3 on the pipe to be cleaned 56b is prevented under certain circumstances.
  • a further radial groove 70 is present in the end piece 36, which increases its elasticity in the axial direction.
  • a fixing bolt 73 is provided on the front side of the carrier 21, from which the jet nozzles 22 protrude with a projection 72, which protrudes in the direction of the central longitudinal axis 38 from the carrier 21.
  • the fixing bolt 73 is screwed with a threaded portion 74 in a threaded bore 75 of the carrier 21. Its the threaded portion 74 facing away from the front end 76 is tapered conically.
  • the longitudinal section adjoining the tapered region has a diameter which is slightly smaller than the inner diameter of a tube 56.
  • the fixing bolt 76 protrudes into a tube 56a arranged between two pipes 56b to be cleaned during the cleaning process. A rotation of the carrier about the fixing bolt 73 as a rotation axis is prevented by the positive cooperation of the pipe ends with the end pieces 36.
  • a mechanical distance sensor 77 is further arranged. This ensures that the carrier 21 by means of a manipulator (not shown) in a predetermined position to the holding plate 57 can be moved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un procédé servant à nettoyer les tuyaux d'un échangeur thermique (54). Selon ce procédé, une buse de sablage est appliquée à une extrémité d'un tuyau (56) et un flux d'air contenant un produit de sablage est soufflé à travers le tuyau. Le procédé selon l'invention est caractérisé en ce qu'on utilise une buse de sablage (22) sans étranglement.

Claims (12)

  1. Procédé de nettoyage des tubes d'un échangeur de chaleur (54) dans lequel une buse de pulvérisation est placée sur l'une extrémité d'un tube (56) et un flux d'air contenant un agent abrasif est soufflé à travers le tube,
    caractérisé en ce qu'une buse de pulvérisation (22) sans étranglement est employée, dont l'ouverture d'évacuation (39) est aussi grande ou légèrement plus petite que la surface transversale intérieure du tube (56).
  2. Procédé selon la revendication 1,
    caractérisé en ce que la buse de pulvérisation (22) est comprimée sur la face avant (52) d'une extrémité de tube avec une surface d'appui (60) comprenant l'ouverture d'évacuation (39).
  3. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que plusieurs tubes (56) sont nettoyés en même temps, plusieurs buses de pulvérisation (22) tenues par un support (21) dans le maillage de tubes de l'échangeur de chaleur étant placées sur des tubes correspondants (56b).
  4. Procédé selon la revendication 3,
    caractérisé en ce que le support (21) est bloque sur une extrémité de tube, en ce qu'un boulon de fixation (73) éloigné de celui-ci dans le sens de la pulvérisation (5) est introduit dans l'extrémité de tube.
  5. Dispositif de pulvérisation pour exécuter un procédé selon l'une des revendications précédentes,
    caractérisé par une buse de pulvérisation (22) non étranglée comprenant une ouverture d'évacuation (39, 40), laquelle est comprise par une surface d'appui (60) coopérant avec la face avant (52) d'un tube (56) et s'étendant dans son plan d'ouverture.
  6. Procédé selon la revendication 5,
    caractérisé en ce que la buse de pulvérisation (22) est traversée par un canal d'écoulement (37) délimité par une ouverture d'admission et d'évacuation (39, 40), le canal d'écoulement (37) présentant une surface transversale essentiellement constante et correspondant environ à la taille de l'ouverture d'évacuation (39).
  7. Procédé selon la revendication 6,
    caractérisé en ce que la surface d'appui (60) est délimitée radialement à l'extérieur par un col (62) faisant saillie axialement, la surface d'appui et le col formant un logement (64) pour une extrémité de tube.
  8. Procédé selon l'une des revendications 5 à 7,
    caractérisé en ce qu'une zone de la buse de pulvérisation (22) contenant le logement (64) et l'ouverture d'évacuation (39) est fabriquée dans un matériau élastomère.
  9. Procédé selon la revendication 8,
    caractérisé en ce que la zone en élastomère est formée par une pièce d'extrémité (36) en forme de tronçon tubulaire reliée par adhérence de forme avec la buse de pulvérisation (22).
  10. Procédé selon la revendication a ou 9,
    caractérisé en ce que le tronçon longitudinal de la zone élastomère comprenant le logement (64) est entouré par un manchon de renfort (67) en matériau rigide.
  11. Procédé selon l'une des revendications 5 à 10,
    caractérisé en ce qu'une pluralité de buses de pulvérisation (22) sont disposées sur un support (21) dans le maillage de tubes de l'échangeur de chaleur (54) à nettoyer.
  12. Procédé selon l'une des revendications 5 à 11,
    caractérisé en ce qu'un boulon de fixation (73) pouvant être introduit dans une extrémité de tube est présent sur le support (21).
EP05728683A 2004-03-24 2005-03-18 Procede pour nettoyer les tuyaux d'un echangeur thermique au moyen d'un produit de sablage et dispositif correspondant Not-in-force EP1735579B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014822A DE102004014822A1 (de) 2004-03-24 2004-03-24 Verfahren zum Reinigen der Rohre eines Wärmetauschers mit Hilfe eines Strahlmittels und dafür geeignete Vorrichtung
PCT/EP2005/002903 WO2005093360A1 (fr) 2004-03-24 2005-03-18 Procede pour nettoyer les tuyaux d'un echangeur thermique au moyen d'un produit de sablage et dispositif correspondant

Publications (2)

Publication Number Publication Date
EP1735579A1 EP1735579A1 (fr) 2006-12-27
EP1735579B1 true EP1735579B1 (fr) 2011-11-23

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Family Applications (1)

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EP05728683A Not-in-force EP1735579B1 (fr) 2004-03-24 2005-03-18 Procede pour nettoyer les tuyaux d'un echangeur thermique au moyen d'un produit de sablage et dispositif correspondant

Country Status (14)

Country Link
US (1) US7789966B2 (fr)
EP (1) EP1735579B1 (fr)
JP (1) JP4874950B2 (fr)
KR (1) KR100862430B1 (fr)
CN (2) CN1806157B (fr)
AR (2) AR048328A1 (fr)
AT (1) ATE534879T1 (fr)
CA (1) CA2473145C (fr)
DE (1) DE102004014822A1 (fr)
ES (1) ES2376770T3 (fr)
RU (1) RU2358219C2 (fr)
UA (1) UA91187C2 (fr)
WO (1) WO2005093360A1 (fr)
ZA (1) ZA200510070B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100901187B1 (ko) * 2007-07-20 2009-06-04 권기용 유압장치용 오일쿨러
DE102008005668B3 (de) * 2007-11-06 2009-04-02 Areva Np Gmbh Vorrichtung zum Reinigen der Innenoberfläche der Wärmetauscherrohre eines Wärmetauschers
US8613641B2 (en) * 2008-10-22 2013-12-24 Pratt & Whitney Canada Corp. Channel inlet edge deburring for gas diffuser cases
CN102374822A (zh) * 2010-08-23 2012-03-14 中国石油化工股份有限公司 氨氧化反应系统中冷却器的在线清焦方法
KR101853536B1 (ko) * 2016-02-23 2018-06-20 제네럴 일렉트릭 테크놀러지 게엠베하 배열회수보일러 클리닝 장치
RU169323U1 (ru) * 2016-04-28 2017-03-15 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный университет" (ФГБОУ ВО "КубГУ") Устройство для очистки трубок теплообменников от отложений
EP3551958B1 (fr) * 2016-11-28 2023-05-31 Candu Energy Inc. Système et procédé de nettoyage d'échangeur de chaleur
US9739548B1 (en) 2017-02-15 2017-08-22 Equate Petrochemical Company Hydro-blasting anti-withdrawal device support
CN109696079B (zh) * 2017-10-20 2020-09-04 中国石油化工股份有限公司 对置式固体颗粒喷射分布器在线清焦装置
KR102094363B1 (ko) * 2018-07-06 2020-03-27 한국수력원자력 주식회사 원자로 압력 용기의 폐기물 처리 장치 및 원자로 압력 용기의 폐기물 처리 방법
CN109163583B (zh) * 2018-09-11 2020-03-24 山东理工大学 一种带有拨叉式冲刷装置的换热器
CN109675875B (zh) * 2018-12-21 2023-12-29 郑州赛为机电设备有限公司 高压水清洗机器人装置
DE102019209347A1 (de) * 2019-06-27 2020-12-31 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Reinigung der Oberflächen von Rohrinnenseiten
US20210310756A1 (en) * 2020-04-07 2021-10-07 Tubemaster, Inc. Device for Cleaning Inner Surface of Heat Exchanger Tubes
US11382243B1 (en) * 2020-12-29 2022-07-05 Dynascan Technology Corp. Display apparatuses
CN114800288B (zh) * 2022-04-25 2023-09-15 中国航发成都发动机有限公司 一种高压压气机整体叶盘的喷丸装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1748004A (en) * 1927-04-11 1930-02-18 Harry W Thomas Sprayer nozzle
SU24067A1 (ru) 1929-01-08 1931-11-30 Г.П. Кащенко Прибор дл продувки жаровых труб паровоза
US2120585A (en) * 1937-01-16 1938-06-14 Bakelite Corp Moldable compositions
GB1025489A (en) * 1964-03-23 1966-04-14 Vacu Blast Ltd Abrasive blasting apparatus for the cleaning of tubes
DE2259334A1 (de) * 1972-12-04 1974-06-06 Siemens Ag Verfahren zur reinigung von waehrend des betriebes mit wasser benetzten teilen von kernkraftwerksanlagen
US4051724A (en) * 1976-03-02 1977-10-04 Atlantic Richfield Company Flow responsive counting apparatus
US4124065A (en) * 1976-11-04 1978-11-07 Water Services Of America, Inc. Apparatus for cleaning heat exchanger tubes
CA1214004A (fr) * 1983-03-11 1986-11-18 Lacress Nominees Pty. Ltd. Decrassage interne de tuyaux, tubes, etc.
JPH0650239B2 (ja) * 1986-01-14 1994-06-29 栗田エンジニアリング株式会社 熱交換器などの管内洗浄装置
IT8648373A0 (it) * 1986-08-08 1986-08-08 Santoro Gennaro Scambiatore termico
JPH07122553B2 (ja) * 1986-10-15 1995-12-25 株式会社日立製作所 熱交換器伝熱管の管内清掃装置
DE8712772U1 (de) * 1987-09-22 1989-01-19 Siemens AG, 1000 Berlin und 8000 München Gerät zur Inspektion und/oder Reparatur von Wärmetauscherrohren
US4860821A (en) * 1988-07-15 1989-08-29 Hagewood Brown T Process for cleaning tube type heat exchangers
US5248095A (en) * 1991-07-31 1993-09-28 Aqua-Dyne Incorporated Rotating nozzle
US5423917A (en) * 1993-02-12 1995-06-13 Garcia, Jr.; Ralph Method for cleaning heat exchanger tubes by creating shock wave and mixing the liquid with injected air
CA2100734C (fr) * 1993-07-16 1998-05-26 Normand Verret Echangeur de chaleur pour milieu poussiereux
US5499639A (en) * 1995-05-01 1996-03-19 Williams, Jr.; Robert V. Apparatus and method for cleaning exchanger tubes
US5685487A (en) * 1995-08-17 1997-11-11 J. Edward Stachowiak Compact high pressure forward jetting spinning nozzle for cleaning
DE19546788A1 (de) * 1995-12-14 1997-06-19 Siemens Ag Verfahren zur Verbesserung der Fehlererkennung bei einer Wirbelstrom-Integritätsprüfung und zur Erhaltung der Wärmeübertragungskapazität von Wärmetauscherrohren
CN2299295Y (zh) * 1996-03-22 1998-12-02 王占生 热水锅炉除垢喷水管
DE19837683C2 (de) * 1998-08-19 2003-02-20 Framatome Anp Gmbh Auffangvorrichtung und Auffanggefäß zum Auffangen von Ablagerungen aus Wärmetauschrohren
EP1120623B1 (fr) * 2000-01-28 2005-10-26 Siemens Aktiengesellschaft Dispositif et procédé de nettoyage de tubes d'échangeur de chaleur
FI20010162A0 (fi) * 2001-01-26 2001-01-26 Timo Juhani Vanhatalo Menetelmä ja laitteisto lämmönvaihtimen putkien puhdistamiseksi
US20040035445A1 (en) * 2002-08-23 2004-02-26 Saxon Edward G. Automated tube cleaner

Also Published As

Publication number Publication date
DE102004014822A1 (de) 2005-10-20
CA2473145C (fr) 2008-04-29
CN101706231A (zh) 2010-05-12
JP2007530899A (ja) 2007-11-01
AR048328A1 (es) 2006-04-19
CN1806157B (zh) 2010-06-16
RU2358219C2 (ru) 2009-06-10
ES2376770T3 (es) 2012-03-16
RU2006105190A (ru) 2006-08-27
CA2473145A1 (fr) 2005-09-24
JP4874950B2 (ja) 2012-02-15
CN101706231B (zh) 2012-12-05
WO2005093360A1 (fr) 2005-10-06
ZA200510070B (en) 2006-10-25
US7789966B2 (en) 2010-09-07
US20060191558A1 (en) 2006-08-31
KR100862430B1 (ko) 2008-10-08
AR071306A2 (es) 2010-06-09
KR20060083194A (ko) 2006-07-20
UA91187C2 (ru) 2010-07-12
CN1806157A (zh) 2006-07-19
ATE534879T1 (de) 2011-12-15
EP1735579A1 (fr) 2006-12-27

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