SU380754A1 - METHOD OF CHEMICAL DEGREASTING METAL SURFACES - Google Patents
METHOD OF CHEMICAL DEGREASTING METAL SURFACESInfo
- Publication number
- SU380754A1 SU380754A1 SU1320123A SU1320123A SU380754A1 SU 380754 A1 SU380754 A1 SU 380754A1 SU 1320123 A SU1320123 A SU 1320123A SU 1320123 A SU1320123 A SU 1320123A SU 380754 A1 SU380754 A1 SU 380754A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chemical
- metal surfaces
- degreasting
- degreasing
- pipelines
- Prior art date
Links
Description
1one
Изобретение относитс к способам химического обезжиривани металлических поверхностей , в частности, внутренней поверхности трубопроводов, преимущественно систем кислорода , гели , азота, их смесей п обезжиренного воздуха.The invention relates to methods for chemical degreasing metal surfaces, in particular, the internal surface of pipelines, mainly oxygen, gels, nitrogen systems, their mixtures and non-fat air.
Известен способ обезжиривани металл;;ческих поверхностей путем цир.кул пии обезжиривающего раствора в турбулентном режиме вдоль очищаемой поверхности. Однако этот способ в р де случаев не обеспечивает эффективной очистки внутренней поверхности трубопроводов.There is a known method of degreasing a metal ;; cic surfaces by means of a circulary of a degreasing solution in the turbulent regime along the surface being cleaned. However, this method in some cases does not provide an effective cleaning of the internal surface of pipelines.
Иредложенный способ интенсифицирует процесс очистки внутренней поверхности трубопроводов .The proposed method intensifies the process of cleaning the internal surface of pipelines.
Это достигаетс тем, что циркул цию осуществл ют в турбулентном режиме с числом Рейнольдса Re 0,1 d внутр. (20000-30000).This is achieved by circulating in a turbulent mode with a Reynolds number Re 0.1 d internal. (20000-30000).
В качестве обезжиривающего раствора может быть использован 2%-ный раствор препарата МЛ-2, подогретый до 70-90° С. При скорости потОКа 3-4 MJCBK обезжиривание ведут 45-60 мин « затем систему промываютAs a degreasing solution, a 2% solution of the drug ML-2, heated to 70-90 ° C, can be used. At a flow rate of 3-4 MJCBK, degreasing is carried out for 45-60 minutes "then the system is washed
дистиллированной водой и продувают обезжиренным воздухом или азотом. Данный способ обезжириван 1 увеличивает производительность процесса в 8-12 раз.distilled water and rinsed with degreased air or nitrogen. This method is degreased 1 increases the productivity of the process in 8-12 times.
При циркул цип раствора со скоростью менее 3 м/сек число Re менее 20000 и не происходит удалени загр зненлй с поверхности при длительной обработке в течение 5-6 час. Использование скорости -потока более 4 м/сек, число Re 30000 приводит к интенсивному износу внутренней поверхности труб и звенной коррозии.When circulating the solution at a speed of less than 3 m / s, the number of Re is less than 20,000 and there is no removal of contaminants from the surface during prolonged treatment for 5-6 hours. Using the speed of the flow of more than 4 m / s, the number of Re 30000 leads to intensive wear of the inner surface of the pipe and corrosion of the shell.
Предмет изобретени Subject invention
Способ химического обезжиривани металлических поверхностей путем циркул дии обезжиривающего раствора вдоль очищаемой поверхности в турбулентном режиме, отличающийс тем, что, с целью интенсификации процесса очистки внутренней поверхности трубопроводов, циркул цию осуществл ют в тлрбулентном режиме с числом Рейнольдса Re 0,1 d внутр. (20000- 30000).A method of chemical degreasing metal surfaces by circulating a degreasing solution along the surface to be cleaned in a turbulent mode, characterized in that, in order to intensify the cleaning process of the internal surface of pipelines, the circulation is carried out in a Trifluent mode with a Reynolds number of Re 0.1 d int. (20000-3000).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1320123A SU380754A1 (en) | 1969-04-08 | 1969-04-08 | METHOD OF CHEMICAL DEGREASTING METAL SURFACES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1320123A SU380754A1 (en) | 1969-04-08 | 1969-04-08 | METHOD OF CHEMICAL DEGREASTING METAL SURFACES |
Publications (1)
Publication Number | Publication Date |
---|---|
SU380754A1 true SU380754A1 (en) | 1973-05-15 |
Family
ID=20445309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1320123A SU380754A1 (en) | 1969-04-08 | 1969-04-08 | METHOD OF CHEMICAL DEGREASTING METAL SURFACES |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU380754A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4781764A (en) * | 1986-07-28 | 1988-11-01 | U.S. Philips Corporation | Method of removing undesired particles from a surface of a substrate |
-
1969
- 1969-04-08 SU SU1320123A patent/SU380754A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4781764A (en) * | 1986-07-28 | 1988-11-01 | U.S. Philips Corporation | Method of removing undesired particles from a surface of a substrate |
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