Heat exchangers such as "pipe in pipe"
Heat exchangers steel enameled type "pipe in the pipe" are designed for heat exchange with corrosive liquids (in the tube space).
![](http://euromash.kiev.ua/images/prod/emal/truba-v-trube.jpg)
Working pressure, MPa (kgf/cm2):
in the case: 0,6 (6,0) or residual not less than 0.04 (300 mm Hg)
in a shirt: 0,6 (6,0)
Permissible wall temperature:
in the case:
• in an acidic environment - from minus 20 to plus 200°C;
• in a neutral environment - from minus 20 to plus 150°C;
• in an alkaline medium:
○ at pH=11 - from minus 20 to plus 130°C;
○ at pH=12 - from minus 20 to plus 110°C;
○ at pH=13 - from minus 20 to plus 90°C;
○ at pH=14 - from minus 20 to plus 80°C.
in a shirt: from minus 20 to plus 200°C.
![](http://euromash.kiev.ua/images/prod/emal/teploobmennik-truba-v-trube-side.jpg)
![](http://euromash.kiev.ua/images/prod/emal/teploobmennik-truba-v-trube-top.jpg)
Fittings table
Area of heat exchange, m2 | Characteristic | |
---|---|---|
А | Б | |
Steam input, for instrumentation | Steam output, for instrumentation | |
Nominal passage, mm | ||
0,25 | 40 | 40 |
0,4 | 65 | 65 |
1,0 | 65 | 65 |
Technical characteristics of heat exchangers
Notation | Heat exchange surface, m2 | D, mm | D1, mm | d, mm | d1, mm | n, шт | l, mm | l1, mm | Overall dimensions | Weight, kg | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
length, L | width, B | height, H | ||||||||||
СЕтв 0,25-12-01 | 0,2 | 57х6 | 82 | 110 | 14 | 4 | 130 | 1240 | 1575 | 140 | 395 | 35 |
СЕтв 0,4-12-01 | 0,4 | 108х8 | 120 | 170 | 18 | 4 | 200 | 1100 | 1500 | 205 | 400 | 75 |
СЕтв 1,0-12-01 | 1,0 | 219х6 | 268 | 280 | 18 | 8 | 250 | 1100 | 1500 | 205 | 400 | 75 |