 |
|
|
|
|
|
Products | |
CASE STUDY OF MREPL MIST TYPE CONDENSER INSTALLED In SPIC Urea Plant, direct contact Barometric Condensers are installed for condensing the vapour and steam jet ejector for creating vacuum. Around 45 TPH of vapour is condensed in these condensers and 700 mm Hg of vacuum is created by Ejectors. The above was carried out by using a Primary & a Secondary Condenser. The uncondensed vapours from primary condenser were taken to secondary condenser. Vapour quantity entering secondary condenser including inerts is around 1 TPH. The uncondensed vapours from secondary condenser were vented to atmosphere through another ejector. For this operation they were using total 2200 M3/hr of water & 1 TPH steam at 20 kg/cm2 pressure. To save the above steam, SPIC decided to convert the existing system to MREPL Mist type condensing system in 2 stages. In the 1st stage, a baby MTAT condenser was installed at the outlet of 1st jet ejector where 90 M³/Hr water was entering at a pressure of 1 kg /cm2 and a temperature of 35°C. MTAT condenser is now condensing the vapour as well as producing 700 mmHg vacuum. The steam pressure reduced from operating 15 kg /cm2 to 10 kg/cm2 thus saving steam required for the secondary jet ejector. Now, in the Second stage we shall replace the primary ejector with MTAT Condenser to totally nullify the consumption of steam by isolating the existing steam jet ejectors. The system shall be commissioned shortly. Details of SPIC: M/s. Southern Petrochemical Industries Corporation Ltd. MCS for Water Cooled Condensers MCS for HTW (High Temperature Water)
|
||