1.0 PURPOSE:
To describe a standard operating procedure (SOP) for heating an equipment.
(a) To hot condition from below 15 degree C.
(b) To hot condition from room temperature (RT).
2.0 SCOPE:
The SOP describes in detail the method of heating an equipment.
3.0 RESPONSIBILITY:
The responsibility of heating an equipment as per the SOP lies with the staff of the rank not lower than operator of the production department.
The responsibility of preparing, reviewing and approving the SOP lies with the Officer (Production), Head of Production and Head of QAD respectively.
4.0 METHOD:
4.1 To hot condition from below 15 degree C.:
4. 1.1 Empty the jacket of water/brine by opening jacket drain valve (if the brine is there in the jacket, drain the brine from jacket brine valve to brine tank) after draining brine into tank, clean the jacket by circulating tower water and drain. Close jacket drain valve. Open jacket outlet pipe and keep in service manifold drainage. Connect inlet hose pipe into tower water inlet valve. Open tower water inlet valve and allow water to be filled in the jacket. After water came out from jacket outlet line hose pipe, close the tower water inlet valve.
4. 1.2 Connect the jacket outlet line hose pipe to steam valve. Close the jacket inlet valve. Close the jacket drain valve and open steam trap.
4.1.3 Open the steam valve. When the temperature of the reaction mass records 5° C. below the lower limit of desired temperature range. Close the steam valve and observe the raise in temperature.
Note: In case the temperature raises above the upper limit in the range, remove the hose from the steam valve and keep in service manifold drainage. Open the jacket inlet valve and connect the hose pipe to tower water inlet valve and open inlet valve.
4.1.4 If temperature reaches the lower limit of desired temperature range, open the steam valve slowly, till the temperature reaches 2° C. less than the upper limit and then close steam valve.
4.2 To hot condition from RT:
4.2.1 Empty the jacket of water by opening jacket drain valve. Close the jacket drain valve and open steam trap.
Heating an equipment, production
