|
Quotation Are Invited For Make Up Water Tank Integrity Inspection. Technical And General Specification Of Tank Integrity Analysis At K Station, Jebel Ali Power Station. 1.#Introduction : Integrity An Alysis, Rla And Fitness For Service Assessment Of Storage Tanks At Dewa. Conduct Internal/External Inspection And Recommended Ndt An Alysis In Compliance To Api 653. On The Basis Of Findings In Nde, Fitness For Service Assessment Shall Be Carried Out And Recommenda Tions For Repair (If Any) Shall Be Provided. Tank Size: 13 M Dia X 10.0 M High Type Of Tank: Self Supported Cone Roof Cylindrical T Ank Design Code: Api Std 650, 10Th Edition Design Pressure: Atm Quantity # 3 Nos 2.#Period Of Work: 4 Days 3.#Scope Of Work: 3.1.#Sc Ope Of Work Include, But Not Limited To The Following. 3.1.1.#The Contractor Shall Visit The Site And Make Himself Fully Familiar Wi Th The Work Scope, Plant Access, Facilities, Complexities, Safety Measures Etc., Before He Submit His Bid. 3.1.2.#Check Condition Su Itable To Carry Out Work. Conduct Site Survey And Safety Inspection To Assess The Working Environment. 3.1.3.#If Working Environment Is Safe Proceed The Following Steps. 3.1.4.#Mobilize The Api Authorized Inspector With Suitable Inspection Tools, Ppes And Consumab Les, Etc. On 3 Days# Notice Period. 3.1.5.#To Provide Services Of Experienced And Certified Inspectors. 3.1.6.#All Equipment Necessa Ry To Execute Inspection And Measurement Shall Be The Scope Of Contractor. 3.1.7.#Contractor Shall Carry Out Integrity Assessment, R La & Ffs 3.1.8.#To Collect Data On Original Design And Fabrication Practices, The Material Of Construction, And The Service History. 3.1.9.#Develop Integrity Management Plan (Imp) 3.1.10.#Prepare Inspection Test Protocol (Itp) To Implement Imp And To Collect Nde D Ata On Present Condition Of The Asset Under Scope. 3.1.11.#Itp Shall Have Necessary Inspection-Related Information Detailing All The Components/Structures Without Any Exception, To Plan The Activities During Shutdown Inspection. 3.1.12.#A Markup Drawing Shall Be P Repared Showing All The Cml Locations. A Unique Identification Has To Be Developed For Cmls. Copy Of Existing Drawings Shall Be Used To Mark Cml Points. 3.1.13.#All Nde Shall Be In The Scope Of Contractor Along With Their Test Equipment, Tools, Tackles, Consumable S And Certified Personnel. Comparison Against Requirements Provided In The Drawings To Be Made By The Contractor. 3.1.14.#Calibration Of Tank By Eodr (Electro Optical Distance Ranging) Method By Authorized Party. 3.2.#Tank External Out Of Service Inspection: 3.1. 15.#The External Inspection Must Be Conducted By An Authorized Inspector. 3.1.16.#A Complete Visual Inspection Shall Be Performed To Identify Any Surface Defect. 3.1.17.#Check The Foundation, Shell, Accessories And Roof. 3.1.18.#The Observations Shall Concentrate On Leakage From Under The Bottom, Shell Settlement, Verticality, Shell Deformations (Flat Spots, Buckles Or Bulges), Corrosion Spots Etc. 3.1.19.#The Observations Should Include The Condition Of Paint Work, Safety Of Stairs, Platforms And Handrails And Proper Func Tioning Of Service Equipment. 3.1.20.#Inspection And Monitoring All Leak Detection Systems, Cathodic Protection Monitoring Eq Uipment Or Other Monitoring Or Warning Systems Which May Be In Place At The Facility. 3.1.21.#Wall Thickness Measurement To Be Done For Shell And Roof. A Suitable Ultrasonic Thickness Measurement Technique Shall Be Applied. 3.1.22.#When There Is Concern That There May Be Cracking In Welds Or In Other Parts Of The Tank Then The Defects Shall Be Verified By Applying An Appropriate Non-Destructiv E Testing Technique, E.G. Radiography Or Ultrasonic Test, Dye Penetrant Or Magnetic Particle Examination. 3.1.23.#Surface Corrosion, Weld Defects Or Coating To An Extent, Which Could Affect The Integrity Of The Tank Shall Be Inspected By Appropriate Methods. 3.1.2 4.#The Tank Shell Shall Be Inspected For Signs Of Deformation (Flat Spot, Buckle Or Bulge), Leakage Or Corrosion Of Bottom Edge And Shell Plates. 3.1.25.#Stiffening Rings To Prevent Buckling Due To Wind Loads And High Thermal Stresses At Low Ambient (Winter) Tempe Ratures Shall Also Be Checked. 3.1.26.#If There Are Indications That Corrosion Has Penetrated The Roof, Access To The Roof Shall Be Prohibited. 3.1.27.#The Following Elements Shall Be Inspected But Not Limited To By An Appropriate Method To Ensure That They Are In Good Condition: ##Structures Supporting And Reinforcing The Tank ##Means Of Attachment To Tank System ##Any Service Equipment Like Level Gauges, Earth Lug, Breathers, Heat Detectors, Stairs Etc. ##Drains, Trenches, Drain Collection Pit And Interceptor Etc. Qty: 3 Make Up Water Tank Integrity Inspection; Contact Person: Kaliyamoorthi Venkatachalapathi / Kaliyamoorthiv@Dewa.Gov.Ae / 04 -3226919 Standard Terms & Conditions 1) Prices Should Be Ddp Delivery Duty Paid At Dewa Stores. 2) Quotation To Be Submitted Only In Local Currency U.A.E Dirhams 3) Dewa Standard Payment Terms Is 30 Days Credit From The Date Of Acceptance Of Material 4) No Dewa Staff Or His Or Her Relatives Up To Third Degree Should Have Ownership Or Partnership In Your Company, And Your Participation In Dewa Tenders / Rfqs Should Not Constitute A Conflict Or Perceived Conflict Of Interest. Supplier Registration: Https://Srm.Dewa.Gov.Ae/Irj/Portal/Anonymous/Regis Tender Link : Https://Www.Dewa.Gov.Ae/Api/Rfxdownload/Get/2332301559
|
