Thermal Specifics :
Quiri specialist in the design and manufacture of heat exchangers and boiler pressure vessels offers you a Liquid Cooler (Noria Cooler) which is a multitubular heat exchanger with fixed tube plates, type TEMA NEN.
The Noria cooling water circulating on the shell side is cooled by sea water circulating on the tube side. The use of sea water requires specific metallurgy and corrosion protection coating on the seawater box side.
This liquid cooler (Noria water) has been thermally designed, manufactured and installed by Quiri on behalf of an Electricity producer in Morocco.
For this project, Quiri also supplied four DN700 isolation valves on the seawater circuit side.
Some Technical Data:
| Shell side | Tube side | |||
| medium | Process water | Sea water | ||
| Flow | m³/h | 1 050 | 2 100 | |
| Inlet temperature | °C | 28 | 19 | |
| Outlet temperature | °C | 24 | 21,2 | |
| Design pressure | Bar | 9 | 5 | |
| Hydrotest pressure | Bar | 13,5 | 7,5 | |
| Design temperature | °C | 50 | 50 | |
| Number of passes | 1 | 1 | ||
| Main dimension | ||||
| Installed heat exchange surface | m² | |||
| Tube type | Bare tubes | |||
| Shell diameter | mm | 1250 | ||
Geometric Specificities:
Horizontal heat exchanger. Empty weight 16,8 Tons.
Constructive Specificities:
Code : ASME VIII div 1 + TEMA R
Country rules: PED97/23/CE
Welding joint UW-11
Métallurgie :
| Matière | Norme | |
| Shell | SA516 Gr 60 | ASME |
| Tubesheet | SB171 C63000 | ASME |
| Desuperheating baffles | SA516 Gr 60 | ASME |
| Sub cooling baffles | SB111 C68700 | ASME |
| tubes | SA516 Gr 60 | ASME |
| Nozzles flanges | P245GH | EN10222-2 |
tube/ tube sheet attachment : welding and expansion
Welding : acc to ASME IX
Welders qualification : acc to ASME IX
Quality Specificities :
Quality Plan according to customer specifications, the requirements of European regulations and Moroccan regulations.
Plan 2D :
