[특허]Chemical cleaning method for steam generators utilizing pressure pulsing

Chemical cleaning method for steam generators utilizing pressure pulsing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B08B-003/08 B08B-003/12 B08B-005/00 B08B-009/02
출원번호	US-0772137 (1991-10-09)
발명자 / 주소	Auld Gregg D. (Trafford PA) Baum Allen J. (Pittsburgh PA) Esposito Judith B. (Swissvale PA) Stenger William J. (Penn Twp. PA)
출원인 / 주소	Westinghouse Electric Corp. (Pittsburgh PA 02)
인용정보	피인용 횟수 : 24 인용 특허 : 0

초록 ▼

An improved method for removing sludge and corrosion products from the interior of a heat exchanger vessel, such as a nuclear steam generator, which comprises the steps of generating a series of pressure pulses within a liquid chelate-containing chemical cleaning agent after the agent has been introduced into the interior of the vessel to create shock waves in the liquid for dislodging, dissolving and fluidizing sludge and corrosion products. The liquid chemical cleaning agent is removed from the vessel after only about 10 to 70 percent of what would have been its normal residence time without the pressure pulses. The method further includes the steps of simultaneously recirculating the chemical cleaning agent through a filter assembly during the pressure pulsing operation in order to remove fluidized sludge and corrosion products dislodged by the pressure pulsing, thereby affording them no opportunity to resettle back onto the surfaces of the heat exchanger vessel and interfere with the chemical cleaning of the vessel. The method reduces not only the time required for a particular chemical cleaning agent to effectively clean the vessel, but further reduces the number of times such chemicals need to be introduced into the vessel, which in turn results in the production of less radioactive liquid waste products.

대표청구항 ▼

An improved method for removing sludge and corrosion products from the interior of a heat exchanger vessel of the type wherein a liquid chemical cleaning agent is introduced into said vessel for a normal residence time of t minutes and then removed, and wherein said agent promotes corrosion within the interior of said heat exchanger vessel, wherein the improvement comprises the steps of: generating a series of pressure pulses within the liquid agent after said agent has been introduced into the interior of said vessel to create shock waves in said liquid agent to dislodge, dissolve and fluidize said sludge and corrosion products, and removing said liquid chemical cleaning agent after 10 to 67% of said normal residence time to substantially shorten the time required for the removal of the sludge and corrosion products from said vessel, and to reduce new corrosion from the chemical agent in said vessel by a factor which is greater than the percentage that the residence time is reduced.

이 특허를 인용한 특허 (24)

Rootham Michael W., Chemical cleaning method for the removal of scale sludge and other deposits from nuclear steam generators.
상세보기
Tibbetts, Nicole Jessica; Dolley, Evan J.; Bewlay, Bernard Patrick; Anderson, Denise Anne; McLean, Nathan David; Telfeyan, Eric John; Wagenbaugh, Frank, Cleaning solution and methods of cleaning a turbine engine.
상세보기
Ishikawa Norio,JPX ; Mori Kiyoto,JPX ; Aoki Hidemitsu,JPX, Cleaning solution for cleaning substrates to which a metallic wiring has been applied.
상세보기
Fruzzetti, Keith Paul; Kim, Karen Samie; Varrin, Jr., Robert Douglas; Marks, Charles, Crystal habit modifiers for nuclear power water chemistry control of fuel deposits and steam generator crud.
상세보기
Wong, Nyik Siong; Vaidhyanathan, Raveendran, Fabric treating appliance utilizing steam.
상세보기
Benne, Thomas; Michel, Claudia; Groppel, Carolyn Y.; Doll, Matthew Travis; Tubman, Casey J., Fabric treatment appliance control panel and associated steam operations.
상세보기
Beck, Markus; Pinkowski, Robert J.; Vallejo Noriega, Alvaro, Fabric treatment appliance with steam backflow device.
상세보기
Beck, Markus; Pinkowski, Robert J.; Vallejo Noriega, Alvaro; Wong, Nyik Siong; Vaidhyanathan, Raveendran, Fabric treatment appliance with steam backflow device.
상세보기
Lieberman Stephen H. ; Knowles David S. ; Martini Leonard J., In situ microscope imaging system for examining subsurface environments.
상세보기
Varrin, Jr., Robert D.; Little, Michael J.; Anderson, Carly E., Method and composition for removing deposits.
상세보기
Pinkowski, Robert J.; Herkle, Christoph; Vallejo Noriega, Alvaro, Method for cleaning a steam generator.
상세보기
Herkle, Christoph; Benne, Thomas, Method for detecting abnormality in a fabric treatment appliance having a steam generator.
상세보기
Herkle, Christoph; Benne, Thomas; Pöettger, Robert; Beck, Markus, Method for operating a steam generator in a fabric treatment appliance.
상세보기
Herkle, Christoph; Benne, Thomas; Pöettger, Robert; Beck, Markus, Method for operating a steam generator in a fabric treatment appliance.
상세보기
Tatyrek Alfred F. ; Eig Merrill, Method for the removal of thermoset potting compound from the electronics package of a munitions item.
상세보기
Wong, Nyik Siong; Vaidhyanathan, Raveendran; Hardaway, Anthony H.; Luckman, Joel A., Method of sanitizing a fabric load with steam in a fabric treatment appliance.
상세보기
Rowe, Raymond Grant, Piping deposit removal from stator water cooling systems.
상세보기
Wong, Nyik Siong; Vaidhyanathan, Raveendran; Hardaway, Anthony H.; Luckman, Joel A., Removal of scale and sludge in a steam generator of a fabric treatment appliance.
상세보기
Wong, Nyik Siong; Vaidhyanathan, Raveendran; Hardaway, Anthony H.; Luckman, Joel A., Steam washing machine operation method having a dual speed spin pre-wash.
상세보기
Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Yoichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant.
상세보기
Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Yoichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus.
상세보기
Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Youichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus.
상세보기
Quddus, Mir A.; Ghanei, Hamid; Shaha, Imtiaz S.; Hardaway, Anthony H., Washer with bio prevention cycle.
상세보기
Wong, Nyik Siong; Vaidhyanathan, Raveendran; Peng, Dengming, Water supply control for a steam generator of a fabric treatment appliance.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Chemical cleaning method for steam generators utilizing pressure pulsing 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (24)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Chemical cleaning method for steam generators utilizing pressure pulsing 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (24)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트