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Record sheet of the test of the equipment for anticorrosive coating the enamel [SBE]-111 “OF [UNIPOL]” of the internal surface of the cationite and anionite filters of Volgograd TETs-2.  At the period with 21.05.02 on 28.05.02. [FOAO] “Of [volgogradenergonaladka]” conducted the tests of 12 models of anticorrosive coating for the internal surface of the cationite and anionite filters of the demineralizing installation of the chemical shop of Volgograd TETs-2. Coating the enamel [SBE]-111 “OF [UNIPOL]” is not certified before “the system of the anticorrosive coatings of the internal surfaces of equipment, conduits and structures of the thermal power stations” of M., 1981 g. “Of [soyuzenergozashchita]”. Coating is substituted down the flat metallic models by the size of 50[kh]50 mm based on two sides. Fundamental technical characteristics throughout the testing are given before the table.
Models experienced before 10% aqueous solution NaCl, 6% aqueous solution Of naOH, before 5% aqueous solution H2SO4 of those heated to (70±2)°[S] for 35 hours. Results of the testing: It is established about the results of tests that by the action of aggressive media for 35 hours at a temperature (70±2)°[S] of the not permissible changes in the anticorrosive properties of coating did not occur. Recommendations:
- To supplier to conduct the certification of coating for TES before the routine. “The certificate of correspondence for the application on TES” and to present [FOAO] “Volgograd TETs-2”
- Is possible the application of the coating with a thickness not less than 355 m for the protection of the internal surface of filters with the assumed periods of operation not more than 2-3- X of years.
- For refining the period of the service of anticorrosive coating “FOR THE SAKE OF [UNIPOL]” for the media NaCl, NaOH, to conduct additional tests at a temperature of 70[oS] during 300[chasov] before the cyclic regime.
Chief OF [LDEO] of rims [A].[M].
Results of model testing of anticorrosive coating.
Table of №1. of testing before 10% aqueous solution NaCl with 70°[S]
| Designation of the indices |
Throughout the testing |
After the testing |
| Number of the model
| 1
| 4
| 7
| 10
| 1
| 4
| 7
| 10
|
| Weight, g
| 27,13
| 36,06
| 34,06
| 36,31
| 27,33
| 36,33
| 34,32
| 36,52
|
| Thickness of coating, m |
230 ±15 |
355 ±23 |
441 ±28 |
591 ±45 |
226 ±18 |
361 ±12 |
446 ±15 |
601 ±15 |
| Volumetric [e]/[soprotivlenie] Of [mom]/[sm]2 |
>3 |
>3 |
>3 |
>3 |
0,4 |
0,6 |
0,9 |
1,6 |
| Moisture saturation, % |
- |
- |
- |
- |
0,73 |
0,75 |
0,76 |
0,57 |
| Exterior view, the mark |
5 |
5 |
5 |
5 |
3 |
4 |
4 |
4 |
Table of №2. of testing before 6% aqueous solution Of naOH with 70°[S]
| Designation of the indices |
Throughout the testing |
After the testing |
| Number of the model
| 2 | 5 | 8 | 11 | 2 | 5 | 8 | 11 |
| Weight, g
| 32,28 | 34,62 | 35,91 | 36,72 | 32,58 | 34,93 | 36,16 | 36,99 |
| Thickness of coating, m |
246 ±20 |
337 ±17 |
435 ±28 |
592 ±82 |
224 ±19 |
341 ±12 |
442 ±21 |
587 ±31 |
| Volumetric [e]/[soprotivlenie] Of [mom]/[sm]2 |
>3 |
>3 |
>3 |
>3 |
0,4 |
0,4 |
0,6 |
0,8 |
| Moisture saturation, % |
- |
- |
- |
- |
0,92 |
0,89 |
0,69 |
0,73 |
| Exterior view, the mark |
5 |
5 |
5 |
5 |
3 |
4 |
4 |
4 |
Table of №3. of testing before 6% aqueous solution H2SO4 with 70°[S]
| Designation of the indices |
Throughout the testing |
After the testing |
| Number of the model
| 3 | 6 | 9 | 12 | 3 | 6 | 9 | 12 |
| Weight, g
| 33,85 | 32,16 | 35,63 | 36,70 | 34,09 | 32,45 | 35,93 | 36,93 |
| Thickness of coating, m |
224 ±12 |
365 ±23 |
483 ±50 |
613 ±52 |
251 ±14 |
367 ±18 |
491 ±20 |
618 ±41 |
| Volumetric [e]/[soprotivlenie] Of [mom]/[sm]2 |
>3 |
>3 |
>3 |
>3 |
2,8 |
>3 |
>3 |
>3 |
| Moisture saturation, % |
- |
- |
- |
- |
0,70 |
0,91 |
0,84 |
0,62 |
| Exterior view, the mark |
5 |
5 |
5 |
5 |
3 |
4 |
4 |
4 |
Notes.
Changes in the exterior view:
- it is 5th lusterless, gray coating, time, crack, starts are absent, [ukryvistos] flat;
- 4 change in the color, the presence of times, starts;
- 3- the presence of cracks;
- it is 2nd the disturbance of the continuity of the coating with an area of less than 2%;
- 1 disturbance of the continuity of the coating with an area is more than 2%.
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