JPS5592896A - Chemical cleaning method - Google Patents
Chemical cleaning methodInfo
- Publication number
- JPS5592896A JPS5592896A JP16289978A JP16289978A JPS5592896A JP S5592896 A JPS5592896 A JP S5592896A JP 16289978 A JP16289978 A JP 16289978A JP 16289978 A JP16289978 A JP 16289978A JP S5592896 A JPS5592896 A JP S5592896A
- Authority
- JP
- Japan
- Prior art keywords
- water
- blowing
- completely
- anticorrosive agent
- piping
- 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
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
PURPOSE: To interrupt cleaning operation without causing corrosion, by carrying out washing with water after washing with chemicals, and then contacting inert gas or water containing anticorrosive agent.
CONSTITUTION: After flushing water through temporary cleaing piping, water is filled therein and circulated in the piping while heating water at the same time. Water in the piping is added with anticorrosive agent and kept in this state for a while. Then, after blowing water completely, the system is cleaned by circulating ammonia solution. After blowing ammonia solution completely, the system is washed with water of about 60°C. Subsequently, after blowing water completely, the system is filled with water, and it is circulated through the system with anticorrosive agent being added thereto and heated with hot air or the like while keeping density of anticorrosive agent uniform. Here, concentration of copper ions in water is kept at a level lower than 10ppm. Then, after cleaning the system with acidic liquid, it is blown completely with nitrogen gas and washed with warm water. After blowing this warm water completely with nitrogen gas, it is sealed therein and kept warm. Finally, neutralizing and anticorrosive treatment is applied with neutralizing agent and anticorrosive agent, and after washing with water, cleaning operation is finished by blowing water with nitrogen gas.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16289978A JPS5592896A (en) | 1978-12-29 | 1978-12-29 | Chemical cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16289978A JPS5592896A (en) | 1978-12-29 | 1978-12-29 | Chemical cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5592896A true JPS5592896A (en) | 1980-07-14 |
| JPS5713794B2 JPS5713794B2 (en) | 1982-03-19 |
Family
ID=15763348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16289978A Granted JPS5592896A (en) | 1978-12-29 | 1978-12-29 | Chemical cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5592896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015102278A (en) * | 2013-11-25 | 2015-06-04 | 三菱日立パワーシステムズ株式会社 | Chemical washing method for boiler piping |
| JP2015114064A (en) * | 2013-12-12 | 2015-06-22 | 三菱日立パワーシステムズ株式会社 | Boiler tube chemical cleaning method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325789U (en) * | 1987-02-04 | 1988-02-19 | ||
| CN104451712A (en) * | 2014-11-26 | 2015-03-25 | 成都川硬合金材料有限责任公司 | Water-based cleaning agent for copper surface |
-
1978
- 1978-12-29 JP JP16289978A patent/JPS5592896A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015102278A (en) * | 2013-11-25 | 2015-06-04 | 三菱日立パワーシステムズ株式会社 | Chemical washing method for boiler piping |
| JP2015114064A (en) * | 2013-12-12 | 2015-06-22 | 三菱日立パワーシステムズ株式会社 | Boiler tube chemical cleaning method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5713794B2 (en) | 1982-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR850000732A (en) | Method and apparatus for metal surface decontamination in nuclear reactor | |
| US3132975A (en) | Process for pickling and passivating enclosed structures | |
| GB2039875A (en) | Water treatment apparatus and method for treating water | |
| JPS5561920A (en) | Deodorizing method | |
| US4439339A (en) | Descaler composition and method | |
| JPS5592896A (en) | Chemical cleaning method | |
| JPS529963A (en) | Method for removing arsenic and silicic acid contained in aqueous solu tion simultaneously | |
| JPS54134046A (en) | Removal of scale | |
| JPS6333403B2 (en) | ||
| JPS5525754A (en) | Method of cleaning scale | |
| RU2138869C1 (en) | Solution for cleaning objects from uranium compounds and method of cleaning | |
| JPS57204132A (en) | Washing method for silicon wafer | |
| JP2819662B2 (en) | How to remove ruthenium tetroxide | |
| JPS6113198A (en) | Method of decontaminating waste-liquor evaporator | |
| JPS57171695A (en) | Washing method of anode oxide film | |
| RU2064529C1 (en) | Method of heat-exchanging apparatus pipes inner surface corrosion prevention | |
| JPS575855A (en) | Formation of metal film onto electric unconductive resin | |
| JPS552769A (en) | Washing method for metal | |
| JPS53126981A (en) | Automatic chemical analysis apparatus | |
| JPS5275183A (en) | Method and apparatus for washing of treating objects | |
| JPH0147240B2 (en) | ||
| SU1674866A1 (en) | Method of neutralizing harmless of active product | |
| JPS52141478A (en) | Treatment of waste gas exhausted from urea pelletizing process | |
| JPS553562A (en) | Washing method for heat exchanger of exhaust gas denitrater | |
| Hesler | Recovery and treatment of metal-finishing wastes by ion-exchange processes |