EP0484042A1 - Méthode pour enlever les boues et les dépôts à l'intérieur d'un réservoir d'échangeur de chaleur - Google Patents
Méthode pour enlever les boues et les dépôts à l'intérieur d'un réservoir d'échangeur de chaleur 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
- 239000010802 sludge Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 70
- 239000012459 cleaning agent Substances 0.000 claims abstract description 22
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000008396 flotation agent Substances 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims abstract description 11
- 230000003134 recirculating effect Effects 0.000 claims abstract description 6
- 238000011049 filling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 26
- 229920000058 polyacrylate Polymers 0.000 claims description 7
- BACYUWVYYTXETD-UHFFFAOYSA-N N-Lauroylsarcosine Chemical compound CCCCCCCCCCCC(=O)N(C)CC(O)=O BACYUWVYYTXETD-UHFFFAOYSA-N 0.000 claims description 5
- 238000005243 fluidization Methods 0.000 claims description 5
- 230000001965 increasing effect Effects 0.000 claims description 5
- CAZBGNGNIZEMPG-UHFFFAOYSA-N 4,5-dihydro-1h-imidazol-1-ium;acetate Chemical compound CC([O-])=O.C1CN=C[NH2+]1 CAZBGNGNIZEMPG-UHFFFAOYSA-N 0.000 claims description 3
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 3
- 239000005695 Ammonium acetate Substances 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 229940043376 ammonium acetate Drugs 0.000 claims description 3
- 235000019257 ammonium acetate Nutrition 0.000 claims description 3
- 150000002009 diols Chemical class 0.000 claims description 3
- 238000005342 ion exchange Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 108700004121 sarkosyl Proteins 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical group CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000002518 antifoaming agent Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 66
- 239000007864 aqueous solution Substances 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 description 64
- 238000005260 corrosion Methods 0.000 description 19
- 230000007797 corrosion Effects 0.000 description 19
- 239000007789 gas Substances 0.000 description 18
- 230000002285 radioactive effect Effects 0.000 description 18
- 239000000126 substance Substances 0.000 description 12
- 239000002904 solvent Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- LXOFYPKXCSULTL-UHFFFAOYSA-N 2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical compound CC(C)CC(C)(O)C#CC(C)(O)CC(C)C LXOFYPKXCSULTL-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- ZMWAXVAETNTVAT-UHFFFAOYSA-N 7-n,8-n,5-triphenylphenazin-5-ium-2,3,7,8-tetramine;chloride Chemical compound [Cl-].C=1C=CC=CC=1NC=1C=C2[N+](C=3C=CC=CC=3)=C3C=C(N)C(N)=CC3=NC2=CC=1NC1=CC=CC=C1 ZMWAXVAETNTVAT-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229920004890 Triton X-100 Polymers 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- IAHZBRPNDIVNNR-UHFFFAOYSA-N 2-ethoxyacetaldehyde Chemical compound CCOCC=O IAHZBRPNDIVNNR-UHFFFAOYSA-N 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000010857 liquid radioactive waste Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229960002668 sodium chloride Drugs 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920002258 tannic acid Polymers 0.000 description 1
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
- 229940033123 tannic acid Drugs 0.000 description 1
- 235000015523 tannic acid Nutrition 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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)
- Incineration Of Waste (AREA)
- Treatment Of Sludge (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 (fr) | 1992-05-06 |
EP0484042B1 EP0484042B1 (fr) | 1995-04-26 |
Family
ID=24422643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910309816 Expired - Lifetime EP0484042B1 (fr) | 1990-10-29 | 1991-10-23 | Méthode pour enlever les boues et les dépôts à l'intérieur d'un réservoir d'échangeur de chaleur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0484042B1 (fr) |
JP (1) | JP2952090B2 (fr) |
ES (1) | ES2072555T3 (fr) |
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 (fr) * | 1984-03-20 | 1985-09-25 | Westinghouse Electric Corporation | Procédé pour le nettoyage des endroits restrictifs du côté secondaire d'un générateur de vapeur |
EP0198340A1 (fr) * | 1985-04-16 | 1986-10-22 | Siemens Aktiengesellschaft | Procédé de nettoyage |
EP0339289A1 (fr) * | 1988-04-19 | 1989-11-02 | Westinghouse Electric Corporation | Méthode de nettoyage, par variation pulsatoire de la pression |
EP0458533A1 (fr) * | 1990-05-18 | 1991-11-27 | Westinghouse Electric Corporation | Méthode de nettoyage chimique des générateurs de vapeur par variation pulsatoire de pression |
-
1991
- 1991-10-23 ES ES91309816T patent/ES2072555T3/es not_active Expired - Lifetime
- 1991-10-23 EP EP19910309816 patent/EP0484042B1/fr 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 (fr) * | 1984-03-20 | 1985-09-25 | Westinghouse Electric Corporation | Procédé pour le nettoyage des endroits restrictifs du côté secondaire d'un générateur de vapeur |
EP0198340A1 (fr) * | 1985-04-16 | 1986-10-22 | Siemens Aktiengesellschaft | Procédé de nettoyage |
EP0339289A1 (fr) * | 1988-04-19 | 1989-11-02 | Westinghouse Electric Corporation | Méthode de nettoyage, par variation pulsatoire de la pression |
EP0458533A1 (fr) * | 1990-05-18 | 1991-11-27 | Westinghouse Electric Corporation | Méthode de nettoyage chimique des générateurs de vapeur par variation pulsatoire de pression |
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 |
EP0484042B1 (fr) | 1995-04-26 |
JPH04281196A (ja) | 1992-10-06 |
ES2072555T3 (es) | 1995-07-16 |
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