Yuhong Group air cooler for an oil refinery is a critical piece of equipment used to cool process fluids, gases, or equipment in refinery operations. These coolers are essential for maintaining optimal temperatures, ensuring safety, and improving the efficiency of refining processes. Below is an overview of air coolers in oil refineries, including their types, applications, and key considerations:
| Sr. No. |
Item Description | Included in SOW |
Excluded or Client SOW |
|
| A | ENGINEERING & DESIGN | |||
| 1 | Thermal Design | ✓ | ||
| 2 | Mechanical Design as per codes for heat exchanger (API-661 & ASME SEC VIII Div-1) | ✓ | ||
| 3 | Structural Design | ✓ | ||
| 4 | Thermal design guarantee | ✓ | ||
| 5 | Mechanical & Structural Design Guarantee | ✓ | ||
| 6 | Submission of Drawings and Documentation | ✓ | ||
| 7 | Raw material procurement / Manufacturing / Fabrication / Assembly | ✓ | ||
| 8 | ASME U-Stamp Certification of the Tube Bundle | ✓ | ||
| 9 | FEA (Finite Element Analysis) for Nozzle Load using Nozzle Pro Software of PRG. | ✓ | ||
| 10 | Nozzle loads – 2 x as specified in API 661 | ✓ | ||
| 11 | Wind & Seismic Analysis as per applicable Specification | ✓ | ||
| 12 | Manufacturer Data Book | ✓ | ||
| 13 | Installation Operation & Maintenance Manual / Drawings | ✓ | ||
| 14 | Unloading, Reloading, Movement, and Storage at Site | ✓ | ||
| 15 | Field Mechanical Erection | ✓ | ||
| 16 | Site Supervision (per diem rates) for Site Installation and Trial Run. | ✓ | ||
| 17 | Third-Party Inspection charges for all incoming, in-process, final assembly, and testing. | ✓ | ||
| B | MATERIAL PROCUREMENT & FABRICATION, SUPPLY | |||
| 1 | Completely Assembled Tube Bundle as per enclosed drawing with tube support and air sealing | ✓ | ||
| 2 | Vent and drain nozzles with blind flanges, gaskets, and hardware | ✓ | ||
| 3 | MP connection nozzles with blind flanges, gaskets, and hardware | ✓ | ||
| 4 | Blind flanges with gaskets and hardware for process nozzles. | ✓ | ||
| 5 | Tube Bundle guards. | ✓ | ||
| 6 | Tube bundle, fan and drive support structure consisting of columns, beams, bracings, and support brackets. | ✓ | ||
| 7 | Steam coil Bundle (wherever applicable) | ✓ | ||
| 8 | Accessories to facilitate header displacement due to thermal expansion of piping Sliding pad. | ✓ | ||
| 9 | Nameplate and relevant supports | ✓ | ||
| 10 | Lifting Lug for Bundle | ✓ | ||
| 11 | Personnel protection on equipment wherever required | ✓ | ||
| 12 | Process, vent and drain piping (as per RFQ drawings). | ✓ | ||
| 13 | Gaskets and bolting for External Connections. | ✓ | ||
| 14 | Louver (Manual / Auto type) - on top of Bundles only (wherever applicable) | ✓ | ||
| 15 | Inlet and outlet Headers | ✓ | ||
| C | STRUCTURAL PARTS | |||
| 1 | Supporting Steel Structure for tube bundles | ✓ | ||
| 2 | Plenum Chamber for each fan complete with fan rings with removable fan guards as per Standard. | ✓ | ||
| 3 | Header access platform/walkways with gratings, support beams, and handrails for header maintenance -1000 mm wide on 2 sides only (as shown in drawing) |
✓ | ||
| 4 | Support structure for Drive Assembly | ✓ | ||
| 5 | Earthing lugs | ✓ | ||
| 6 | Insulation Cleats & Fire Proofing Cleats | ✓ | ||
| 7 | Pipe Support Arrangement for Fire Fighting Lines | ✓ | ||
| 8 | Distribution and collecting header as per drawings | ✓ | ||
| 9 | Bolts, Studs & Nuts necessary for the complete assembly of the Units at Site. | ✓ | ||
| 10 | Structural Support for Lighting Fixture | ✓ | ||
| D | MECHANICAL COMPONENTS | |||
| 1 | Axial Flow Fans Complete with a. Fan (Manual) – type of fan as per applicable drawing b. Driveshaft with bearings c. Drive Pulley & Belt d. Fan guard & screen e. Provision of greasing for bearings f. First fill of lubricant |
✓ | ||
| 2 | Louver for Applicable Tags | ✓ | ||
| 3 | Steam coil for applicable tags | ✓ | ||
| 4 | Standard Greasing points of each fan shaft bearings are accessible from floor level. | ✓ | ||
| 5 | Anti-Rotation Device for all fans | ✓ | ||
| E | ELECTRICAL COMPONENTS | |||
| 1 | Electrical Drive Motor - DOL Compatible. Voltage = 380V Motor rating = As per Drawings & Datasheets Motor weather protection – Canopy only |
✓ | ||
| 2 | Motor Rating - CLASS 1, DIV 2, GROUP IIA/T3 or CLASS 1, DIV 2, GROUP IIC/T3 – As per drawings | ✓ | ||
| 3 | Electrical Motor Cable Glands & Lugs | ✓ | ||
| 4 | VFD for motors (50% of the fans considered with VFD operated for Applicable tags as per drawings). | ✓ | ||
| 5 | Local Control Station (LCS) comprising of one push-button and ammeter for motors one at grade level and one emergency stop push button at header platform level. |
✓ | ||
| 6 | Electrical Power & Control Cables, cable tray and support | ✓ | ||
| F | INSTRUMENT COMPONENTS | |||
| 1 | Vibration Switch -01 Nos. for Each Fan. | ✓ | ||
| 2 | Cable Glands for All Instrument | ✓ | ||
| 3 | Junction Box including Wiring Up to Junction Box. (If applicable) | ✓ | ||
| 4 | Instruments cable Tray. | ✓ | ||
| 5 | Support for Electrical and Instrumentation Cable Tray | ✓ | ||
| 6 | Instruments as per Hook-up scheme for Auto Variable Pitch Fan & Pneumatic Louver Operations for applicable tags. (i.e., I/P Converter, Air Filter, Air Booster, Actuator, Tubing, etc.) | ✓ | ||
| 7 | Requirement for AVP fan | ✓ | ||
| 8 | Control panel for AVP fan | ✓ | ||
| G | SURFACE PREPARATION & PAINTING | |||
| 1 | Header Boxes | Painting | ||
| 2 | Steel Support Structure | HDG | ||
| 3 | Bundle C-Frame, Fan Guard, Wire Mesh, Gratings and Steel parts used in Tube Bundles and Drive Assembly | HDG | ||
| 4 | Fan Ring and Plenum Chamber | HDG | ||
| 5 | Structural Bolting | HDG | ||
| 6 | Hand Railing and Ladders | Painting | ||
| H | SHOP TESTING | |||
| 1 | Internal plan inspection and testing as per Approved Quality Assurance Plan | ✓ | ||
| 2 | Performance Test (Noise, Vibration, Air Flow, Power Consumption) - 1 Bay per Item. | ✓ | ||
| 3 | Structural Trial Fit-Up | ✓ | ||
| 4 | PMI If applicable | ✓ | ||
| 5 | PWHT as per code (If Applicable) | ✓ | ||
| 6 | Hydro Test of Bundle | ✓ | ||
| I | PACKING & TRANSPORTATION | |||
| 1 | Export Packing & Loading on the truck / trailer | ✓ | ||
| 2 | All necessary support for Transport and customs clearance | ✓ | ||
| 4 | Transportation in Knock Down Condition to Site. | ✓ | ||
| 5 | Loading, Unloading and Handling at Site | ✓ | ||
