EP0484042A1 - Methode zum Beseitigen von Schlamm und Ablagerungen aus dem Inneren eines Wärmetauscherbehälters - Google Patents
Methode zum Beseitigen von Schlamm und Ablagerungen aus dem Inneren eines Wärmetauscherbehälters Download PDFInfo
- Publication number
- EP0484042A1 EP0484042A1 EP91309816A EP91309816A EP0484042A1 EP 0484042 A1 EP0484042 A1 EP 0484042A1 EP 91309816 A EP91309816 A EP 91309816A EP 91309816 A EP91309816 A EP 91309816A EP 0484042 A1 EP0484042 A1 EP 0484042A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deposits
- sludge
- liquid
- removing sludge
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/483—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers specially adapted for nuclear steam generators
Definitions
- the U-shaped heat exchanger tubes are contained within the secondary side of said steam generators. Each such heat exchanger tube in inverted, with its open ends mounted in the tubesheet and its legs and bent portion extending into the secondary side. A plurality of vertically spaced-apart support plates are provided in the secondary side for laterally supporting the legs of each heat exchanger tube.
- the legs of the U-shaped heat exchanger tubes extend through bores present in the support plates. Small, annular spaces are present between these heat exchanger tubes and the bores in the support plates and tubesheet through which these tubes extend. These annular spaces are known in the art as "crevice regions".
- Such an optional conduit is provided when it is desired to circulate the cleaning solution through the bed 74 to remove dissolved, radioactive ionic species from the solution. However, if this mode of operation is desired, it will be necessary to select resins for the ion-exchange columns that will not remove the dissolved cleaning agents present in the solution, but only the radioactive ionic species.
- An isolation valve 77 is provided in the optional return conduit to isolate the flow of solution through the main conduit from any contact with the resin bed 74 when the bed 74 is not is use.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Treatment Of Sludge (AREA)
- Incineration Of Waste (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60520090A | 1990-10-29 | 1990-10-29 | |
US605200 | 1990-10-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0484042A1 true EP0484042A1 (de) | 1992-05-06 |
EP0484042B1 EP0484042B1 (de) | 1995-04-26 |
Family
ID=24422643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910309816 Expired - Lifetime EP0484042B1 (de) | 1990-10-29 | 1991-10-23 | Methode zum Beseitigen von Schlamm und Ablagerungen aus dem Inneren eines Wärmetauscherbehälters |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0484042B1 (de) |
JP (1) | JP2952090B2 (de) |
ES (1) | ES2072555T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339621A (en) * | 1992-08-31 | 1994-08-23 | Environmental Energy Systems, Inc. | Waste treatment system and method utilizing pressurized fluid |
FR2761803A1 (fr) * | 1997-04-04 | 1998-10-09 | Framatome Sa | Procede d'enlevement de matiere deposee sur une surface d'un circuit ou composant d'un reacteur nucleaire et applications du procede |
US9751114B2 (en) | 2015-07-23 | 2017-09-05 | Renmatix, Inc. | Method and apparatus for removing a fouling substance from a pressured vessel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100405156B1 (ko) * | 2001-05-10 | 2003-11-12 | 김선욱 | 고압 세정장치 |
US20100300218A1 (en) * | 2009-06-02 | 2010-12-02 | Electric Power Research Institute, Inc. | Dispersant application for clean-up of recirculation paths of a power producing facility during start-up |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447965A (en) * | 1966-10-31 | 1969-06-03 | Dow Chemical Co | Removal of copper containing scale from ferrous surfaces |
FR2419118A1 (fr) * | 1978-03-10 | 1979-10-05 | Mitsubishi Heavy Ind Ltd | Procede et appareil de rincage d'un espace interstitiel tres etroit |
US4320528A (en) * | 1980-01-23 | 1982-03-16 | Anco Engineers, Inc. | Ultrasonic cleaner |
EP0155568A2 (de) * | 1984-03-20 | 1985-09-25 | Westinghouse Electric Corporation | Verfahren zur Reinigung verengter Bereiche auf der Sekundärseite eines Dampferzeugers |
EP0198340A1 (de) * | 1985-04-16 | 1986-10-22 | Siemens Aktiengesellschaft | Reinigungsverfahren |
EP0339289A1 (de) * | 1988-04-19 | 1989-11-02 | Westinghouse Electric Corporation | Druckpulsierendes Reinigungsverfahren |
EP0458533A1 (de) * | 1990-05-18 | 1991-11-27 | Westinghouse Electric Corporation | Druckpulsierendes chemisches Reinigungsverfahren von Dampferzeugern |
-
1991
- 1991-10-23 EP EP19910309816 patent/EP0484042B1/de not_active Expired - Lifetime
- 1991-10-23 ES ES91309816T patent/ES2072555T3/es not_active Expired - Lifetime
- 1991-10-29 JP JP3282774A patent/JP2952090B2/ja not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447965A (en) * | 1966-10-31 | 1969-06-03 | Dow Chemical Co | Removal of copper containing scale from ferrous surfaces |
FR2419118A1 (fr) * | 1978-03-10 | 1979-10-05 | Mitsubishi Heavy Ind Ltd | Procede et appareil de rincage d'un espace interstitiel tres etroit |
US4320528A (en) * | 1980-01-23 | 1982-03-16 | Anco Engineers, Inc. | Ultrasonic cleaner |
EP0155568A2 (de) * | 1984-03-20 | 1985-09-25 | Westinghouse Electric Corporation | Verfahren zur Reinigung verengter Bereiche auf der Sekundärseite eines Dampferzeugers |
EP0198340A1 (de) * | 1985-04-16 | 1986-10-22 | Siemens Aktiengesellschaft | Reinigungsverfahren |
EP0339289A1 (de) * | 1988-04-19 | 1989-11-02 | Westinghouse Electric Corporation | Druckpulsierendes Reinigungsverfahren |
EP0458533A1 (de) * | 1990-05-18 | 1991-11-27 | Westinghouse Electric Corporation | Druckpulsierendes chemisches Reinigungsverfahren von Dampferzeugern |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 6, no. 50 (M-120)(928) 3 April 1982 & JP-A-56 165 900 ( SHINKOU KAWADA ) 19 December 1981 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339621A (en) * | 1992-08-31 | 1994-08-23 | Environmental Energy Systems, Inc. | Waste treatment system and method utilizing pressurized fluid |
FR2761803A1 (fr) * | 1997-04-04 | 1998-10-09 | Framatome Sa | Procede d'enlevement de matiere deposee sur une surface d'un circuit ou composant d'un reacteur nucleaire et applications du procede |
US9751114B2 (en) | 2015-07-23 | 2017-09-05 | Renmatix, Inc. | Method and apparatus for removing a fouling substance from a pressured vessel |
US11173525B2 (en) | 2015-07-23 | 2021-11-16 | Renmatix, Inc. | Method and apparatus for removing a fouling substance from a pressured vessel |
Also Published As
Publication number | Publication date |
---|---|
JP2952090B2 (ja) | 1999-09-20 |
JPH04281196A (ja) | 1992-10-06 |
EP0484042B1 (de) | 1995-04-26 |
ES2072555T3 (es) | 1995-07-16 |
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