1. Trang chủ
  2. » Kỹ Thuật - Công Nghệ

Hệ thống sơn chống ăn mòn dự án sao vàng đại nguyệt

86 18 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Định dạng
Số trang 86
Dung lượng 16,66 MB

Nội dung

Khí mỏ Sao Vàng Đại Nguyệt sẽ là nguồn bổ sung quan trọng, góp phần cung cấp và đáp ứng nhu cầu tiêu thụ tại khu vực Đông Nam Bộ. Trong đó, các nhà máy điện khí khu vực này chiếm khoảng 22% sản lượng điện cả nước, và nhà máy đạm khu vực này (Phân bón Phú Mỹ PVFCCo) cung cấp khoảng 35% sản lượng urê toàn quốc. Sao Vàng Đại Nguyệt ước tính sẽ bổ sung 1,8 tỷ m3 khí (15% sản lượng hiện tại) cho PV GAS trong năm 2021, tổng sản lượng khí ẩm về bờ năm 2021 tăng 9,5% so với năm 2020, ước tính sẽ đem lại khoảng 8.550 tỷ đồng doanh thu và 1.710 tỷ đồng lợi nhuận gộp cho PV GAS.

Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 Rev.: D1 Date: 07.05.18 Page: of 10 Revision Record Sheet Rev No Description Date of Rev B1 B2 B3 B4 Issue for review Issue for review Re-issue for review Re-issue for review & Approval Incorporated Clients Comments and Re-Issued for approval Approved for Construction 31/1/2018 27/2/2018 12/3/2018 27/3/2018 B5 D1 File Name: Rev D1 23/04/2018 07/05/2018 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 Rev.: D1 Date: 07.05.18 Page: of 10 TABLE OF CONTENTS 1.0 INTRODUCTION 2.0 SCOPE 3.0 REFERENCE AND STANDARDS 4.0 DEFINITIONS AND ABBREVIATIONS 5.0 EQUIPMENT 6.0 TEST PANEL PAINTING REQUIREMENTS 6.1 PAINT MANUFACTURERS 6.2 SELECTION OF TEST PANEL 6.3 SURFACE PREPARATION 6.4 COATING AND PAINTING 6.5 INSPECTION/ TESTING 6.6 INSPECTION OF EQUIPMENT 6.7 CALIBRATION 6.8 SPECIAL REQUIREMENTS 7.0 RECORDS 10 8.0 COATING SYSTEM TO BE TESTED 10 9.0 APPENDICES 10 10.0 ATTACHMENT 10 File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 1.0 Rev.: D1 Date: 07.05.18 Page: of 10 INTRODUCTION This procedure provides the details for carrying out Coating Procedure Tests (CPT) as required by the project Coating and Painting Specification All work will be performed in strict accordance with project specifications and the manufacturer’s current printed instructions Work shall be performed by skilled workmen in a safe and workmanlike manner 2.0 SCOPE The purpose of this procedure is to provide details of how the Contractor will carry out Coating Procedure Tests (CPT) at the worksite prior to actual application on the project materials The CPT will be qualified under realistic conditions likely to be present during coating application and will follow the recommendations of the coating manufacturers 3.0 4.0 REFERENCE AND STANDARDS - 05-1_EPC-SV-AEI-M-SA-00001 Coating and Painting Specification - 05-1_EPC-SV-VSP-Q-LA-00004 Project Paint Matrix - 05-1_EPC-SV-VSP-Q-PR-00004 Surface Preparation and Painting Procedure - NORSOK STANDARD M-501 Surface preparation and protection coating - ASTM D 4541 Standard Test Method for Full-Off Strength of coating using portable Adhesion Testers - ISO 4624 Paints and Varnishes – Pull-off test for Adhesion - SSPC-SP1 Solvent Cleaning - ISO 8501-1 Visual Assessment of Surface Cleanliness DEFINITIONS AND ABBREVIATIONS - Company Idemitsu Kosan Co., Ltd (IKC) - Contractor PTSC Mechanical & Construction Co.,Ltd (PTSC M&C) - Sub-Contractor Vietsovpetro (VSP) - DFT Dry Film Thickness - WFT Wet Film Thickness - DPM Dew Point Meter - CPT Coating Procedure Test - ISO International Organization for Standardization - ASTM The American Society for Testing and Materials File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 5.0 Rev.: D1 Date: 07.05.18 Page: of 10 EQUIPMENT Blasting and painting equipment shall be frequently checked and maintained prior to commencement of work This is to ensure that these equipment are in good condition and safe to operate 5.1 Blasting Equipment a) b) c) d) e) f) g) h) i) j) Auto-Blast Machine (Work shop) Manual Blast Machine Air Compressor Blasting helmet/ hood Air manifold and hoses Hose Safety Whip Checks/Couplings Air tools for power brushing Air filters/ Separators Regulations Blasting Hose and Nozzles 5.2 Painting Equipment a) Airless spray pump b) Airless spray gun c) Paint agitator d) Paint brush/ roller e) Moisture filter/ Separators f) Spray hose/ Tips 6.0 TEST PANEL PAINTING REQUIREMENTS Test panel painting requirements consists of the followings: - Paint Manufacturers - Selection of test panel - Surface Preparation - Coating & Painting - Inspection/Testing - Inspection of Equipment - Calibration - Special requirement 6.1 PAINT MANUFACTURERS It is expected that the following paint manufacturers will participate in the Coating Procedure Tests for the Sao Vang Project - Jotun Paints Hempel Paints International Paint File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 6.2 Rev.: D1 Date: 07.05.18 Page: of 10 SELECTION OF TEST PANEL a) Reasonable test panel size should be selected The panel should be new plates with minimum size 1000 x 1000mm x 5mm b) Each Panel shall be surface treated and cleaned to the correct standard c) Succeeding coats shall be applied in the specified manner and to the specified thickness as described in this procedure d) Sub-Contractor shall notify Contractor and Client at least one (1) week in advance prior to conducting the qualification tests of each paint system e) On completion of a CPT, if all the results are acceptable the CPT panel shall be marked with the Coating System No and test date and retained for the duration of the project The test panel shall be available for inspection by Company if required throughout the duration of the project 6.3 SURFACE PREPARATION a) Check the test panel on its suitability for use Panels should not have any defects like pitting, etc b) Solvent cleaning in accordance with SSPC - SP1 shall be used to remove any oil grease and other contamination present on the steel surface before blasting c) Ensure that correct size of abrasive is being used It shall be dry and uncontaminated Suitable abrasives for use in blast cleaning are: - Steel Grit and Steel shot (using for Auto-Blast Machine) - PS Ball (Size: 0.6-1.0; 1.0-2.0mm) - Garnet d) Carry out of testing the Compressed Air quality, abrasive material quality prior to starting CPT e) Record down weather conditions prior to blasting & painting f) The grade of surface finished shall be in accordance to ISO 8501-1:1988 Sa 2.5 or as agreed in the specification g) Check surface profile measurements using a surface profile or profile comparator ensuring that they are within specification There preferred peak to valley height shall be 50-85 microns h) Prior to application of paint, record the substrate temperature Spraying may commence when the steel temperature is 3°C above dew point and when the relative humidity is lower than 85% 6.4 COATING AND PAINTING a) Check spray gun tip size on its suitability for use with the coating concerned b) Ensure that equipment (Conventional/Airless) used is as per recommendation c) During mixing of paint agitate paint base with power stirrer followed by addition of curing agent d) Record down batch Numbers of base and curing agent, and percentage of thinning if required in the test panel inspection report File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 Rev.: D1 Date: 07.05.18 Page: of 10 e) Determine volume solids of the paint in order to determine required WFT to obtain minimum specified DFT f) Spray the paint on a sample plate/ beam to ensure that correct atomization and flow of paint is obtained before spraying onto test plate The spray gun shall not closer than 200mm or more 600mm from the surface to be coated g) Record number of passes made to obtain required WFT h) Clean system with recommended cleaner immediately after spraying i) Allow the coating to cure for a minimum of 12 hours at 320C or in accordance with the paint manufacturer’s recommendation before application of the subsequent paint or coating j) Tape – up a minimum 8” portion of painted surface and lightly abrade the remaining area prior to application k) Observe overcoating intervals as specified by the paint manufacturer’s recommendation l) When spraying subsequent coats, please follow the steps (a) to (j) above 6.5 INSPECTION/ TESTING a) Visual Inspection Individual coat and completed coatings shall be visually inspected for appearance Coats and coatings shall be smooth and free from dry spray, pinholes, blisters, craters and excessive sagging For glass flake surfaces, it is common to have an orange peel or wavy surface due to the high DFT application & high pressure used b) Surface Profile Measurements “Elcometer 124 guage with Testex Press –OFilm Tape” This method is used to measure the surface profile of abrasive blasted steel surface Following are the applicable method in determining the required surface profile This method consists of a compressible plastic tape which is placed on the blast-cleaned steel surface and compresses with a roller so that the tape retains a print of the surface The replica shall then be removed and its thickness be measured in a micrometer screw gauge, the reading obtained is the maximum peak to valley heights of the blasted surface c) Assessment Of Dust On Steel Surface Prepared For Painting Dust, blast abrasives etc shall be removed from the surface after blast cleaning such that the particle quantity and particle size not exceed rating of ISO 8502-3 Acceptable criteria: Dust quantity and size rating is acceptable d) Salt Contamination Test The maximum content of soluble impurities on the blasted surface as sampled using ISO 8502-6 and distilled water, shall not exceed a conductivity measured in accordance with ISO 8502-9 corresponding to a NaCl content of 20 mg/m2 File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 Rev.: D1 Date: 07.05.18 Page: of 10 e) Wet Film Thickness (WFT) Measurements The comb-type gauge shall be used The surface selected for measurement should be smooth The comb is placed in the newly applied wet film The wet film thickness will be indicated where the tooth has touched the paint To calculate the desired wet film thickness from Dry Film Thickness, the formula is: f) Dry Film Thickness (DFT) Measurements The DFT of a non-magnetic coating applied on a magnetic substrate shall be determined or checked with calibrated film thickness gauges, using the magnetic resistance gauge or eddy current principle, such as “Elcometer”, Minitest”, etc The gauges for DFT checks shall be calibrated daily in accordance with the manufacturer’s recommendation The determine the dry film thickness (DFT) from the measured wet film thickness, the formula is: The measurement procedure for measuring of dry thickness thickness shall be in accordance with SSPC-PA2 standard g) Temperature and Relative Humidity: Temperature and relative humidity shall be measured by means of Dew Point Meter E319 or equivalent Readings shall be taken prior to commencement of blasting or painting and at regular intervals if there are changes in climatic conditions All gauges and recorders shall be calibrated and certified prior to testing Gauges with doubtful accuracy shall either be re-calibrated or not used h) Pull Off Test – ISO 4624 or ASTM D4541 Standards: This method is used to measure the adhesive/cohesive strength of coating This test will be performed using Elcometer 108 After days of application of final coat, attached six (6) dollies on each coat with using Epoxy Araldite glue after lightly abrade the area of attachment allow the glue to be cured with minimum of 24 hours before commencing Pull-Off Test The force required to remove the dollies shall be recorded and reported as average of the least three pull off The area and mode of failure shall also be reported In the event of all the six (6) dollies on the same coating gave glue failures and the results are below the required pull of strength value, reattachment of dollies shall be carried out to determine the strength of coating Coating System No and 7A – Required minimum pull off value Mpa for any single measurement Note: For adhesion test during CPT, glue failure with values below 15 MPa is not accepted If pull-off test be fail by 100% glue with value below 15Mpa, one (1) dolly shall be re-applied and will be re-retest next day File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 6.6 Rev.: D1 Date: 07.05.18 Page: of 10 INSPECTION OF EQUIPMENT Contractor may utilize approved inspection equipment or its equivalent, i.e Elcometer, Positector, etc other than describe herein for the inspection of test panel/coating system a) Surface Profile Surface Profile Gauge Model 124 with Press – O - Film, provides reliable measurements peak-to valley, height 0-600 microns after blasting or equivalent instrument equipment may also be used to assess the surface profile b) Wet Film Thickness Gauge The Wet Film Thickness Gauge (comb type) Model 112 is a measuring instrument which resembles a comb with teeth in between decreasing in length from one to the other It is used to monitor the wet film thickness on newly applied paint c) Dry Film Thickness Gauge A magnetic or electro – magnetic gauge maybe used to determine the dry coating thickness, i.e Elcometer 355; 456; Minitest 600; Positector 600 or equivalent d) Temperature and Relative Humidity The Elcometer E319 or Positector DPM “Dew Point Meter”: Measure and records climatic conditions includings: Relative humidity, air temperature, surface temperature, dew point temperature and difference between surface and dew point temperatures Ideal for surface preparation as required by ISO 8502-4 e) Pull-Off Test The Elcometer 108 Hydraulic Adhesion Testers is used to measure the adhesive/cohesive strength of coating system 6.7 CALIBRATION All inspection equipment shall be maintained and calibrated The coating inspector shall be responsible for the proper maintenance, calibration and functioning of all testing and inspection equipment at all time Calibration certificates shall be valid and available for verification All inspection equipment shall be calibrated on each occasion before use on individual items and thereafter, dependent on frequency of use 6.8 SPECIAL REQUIREMENTS a) The succeeding coat shall not be applied until the preceding coat is sufficiently dry b) The paint shall not be forced dry under conditions that will cause cracking, wrinkling, blistering or detrimentally affect the condition of the paint c) Paint shall be protected practically to the fullest extent from rain, condensation and contamination until dry File Name: Rev D1 Title: Coating System Qualification Procedure Doc No.: 05-1_EPC-SV-VSP-Q-PR-00005 7.0 Rev.: D1 Date: 07.05.18 Page: 10 of 10 RECORDS - FM01 Daily Inspection Report - FM02 Adhesive Strength Test Report - FM03 Photograph Report Note: All reports are made by paint manufacturers 8.0 COATING SYSTEM TO BE TESTED Coating system No.1 Coat No Generic name 1st coat 2nd coat 3rd coat Total : Zinc rich epoxy primer High build epoxy Acrylic Aliphatic Polyurethane Min DFT (µm) 60 170 50 280 Remark Coating system No.7A Coat No Generic name 1st coat Glass-flake reinforced polyamine epoxy Min DFT (µm) 300 2nd coat Glass-flake reinforced polyamine epoxy 300 Total : 9.0 600 APPENDICES - FM01 Daily Inspection Report - FM02 Adhesive Strength Test Report - FM03 Photograph Report 10.0 ATTACHMENTS Jotun Paint - Paint Test Panel Inspection & Testing - Pre-qualification report Hempel Paint - Paint Test Panel Inspection & Testing - Pre-qualification report International Paint - Paint Test Panel Inspection & Testing - Pre-qualification report File Name: Rev D1 Remark Norsok pre-qualification testing in accordance with Norsok M-501 Edition February 2012 4.3 Application Conditions: Coating Data Coat Coat Paint System Interzone 1000 Interzone 1000 Grey Grey Colour Manufacturer International Paint Ltd Date of Application 17/12/2013 18/12/2013 Time of Application 10:19 09:45 Sales Code (Part A) EPA490 EPA490 Sales Code (Part B) EPA538 EPA538 Batch No (Part A) PH1717RG PH1717RG Batch No (Part B) PG1676RG PG1676RG Thinner Name N/A N/A Thinner Batch No N/A N/A Airless (64:1) Airless (64:1) 50 50 0.021 0.021 50 50 3.5 : 1.0 3.5 : 1.0 Volume Solids (%) 92 92 Nominal Wet Film Thickness (µm) 570 550 Nominal Dry Film Thickness (µm) 500 500 Thinner (%) N/A N/A Air Temperature (°C) 21.6 20.9 Relative Humidity (%) 27.5 33.4 Substrate Temperature (°C) 22.0 21.3 Dew Point (°C) 1.9 4.2 Equipment Used Air Pressure Nozzle Size (Inches) Fan Width (°) Mix Ratio (A:B by vol) Witness present at application of test coating: Geoffrey Addicott Document No.: N964983 Page No.: of 20 Author: S.Rice Issue Date: 18/02/2016 Client: International Paint Ltd Issue No.: Norsok pre-qualification testing in accordance with Norsok M-501 Edition February 2012 4.4 Dry Film Thickness Measurements: Coat Coat Interzone 1000 Interzone 1000 NDFT (µm) 500 500 Application Date 17/12/2013 18/12/2013 Paint Name Exova Sample Reference Client Sample Reference Dry Film Thickness (µm) Coat N964983 – PCWS-2231/7A/1/5 N964983 – PCWS-2231/7A/1/6 N964983 – PCWS-2231/7A/1/7 N964983 – PCWS-2231/7A/1/22 N964983 – PCWS-2231/7A/1/23 N964983 – PCWS-2231/7A/1/26 N964983 – 11 PCWS-2231/7A/1/12 N964983 – 12 PCWS-2231/7A/1/13 N964983 – 13 PCWS-2231/7A/1/14 N964983-Ref PCWS-2231/7A/1/2 High Low Mean SD 551 457 505 38.6 1069 952 1025 51.2 596 383 540 42.1 1164 1031 1077 41.2 563 468 500 39.4 1099 948 1000 61.4 595 474 546 48.9 1153 1011 1072 58.4 555 478 513 29.3 1066 966 1014 35.7 609 458 517 69.7 1065 980 1024 30.3 635 527 573 42.8 1188 1096 1151 39.1 561 489 522 33.8 1124 984 1050 43.9 512 480 500 12.9 1041 976 1019 25.3 635 503 568 55.7 1194 1043 1118 69.8 Note:The above data (4.0.) was supplied by the client to Exova The above paint system was applied by the client at their premises and was witnessed by an Exova coatings division representative (Mr G Addicott) 5.0 5.1 PRODUCT IDENTIFICATION Results: Batch Number Non-Volatile (%mass) BS EN ISO 3251 Ash Content (%mass) BS EN ISO 146802 Wet Density (g/cm ) BS EN ISO 2811 Interzone 1000 (Part A) PH1717RG 95.40 43.89 1.440 Interzone 1000 (Part B) PG1676RG 98.01 0.00 0.938 Sample Document No.: N964983 Page No.: of 20 Author: S.Rice Issue Date: 18/02/2016 Client: International Paint Ltd Issue No.: 6.0 6.1 DETAILED RESULTS Summary of Results: Test Parameter Panel No Disbonding Blistering Rusting Cracking Flaking Chalking ISO 20340 ISO 4628-2 ISO 4628-3 ISO 4628-4 ISO 4628-5 ISO 4628-6 ISO 4624 mm Density (Size) Ri Density (Size) Density (Size) Rating MPa Req Req Req Cyclic Ageing (ISO 20340) Seawater Immersion (ISO2812-2) Cathodic Disbondment (ISO 15711) Adhesion test (unexposed) (ISO4624) N964983-02 N964983-03 Res Req Res 3.46 ≤8.0 Req 0(S0) 4.13 0(S0) Res Ri0 0(S0) Ri0 Ri0 Res 0(S0) 0(S0) 0(S0) Res Req 0(S0) 0(S0) 0(S0) Res Adhesion Req - - *** 13.8 10.4 Pass 12.5 10.1 Pass 9.7 Pass 0(S0) Ri0 0(S0) 0(S0) - 13.5 N964983-06 0.39 0(S0) Ri0 0(S0) 0(S0) - 10.3 0.22 0(S0) 0(S0) Ri0 Ri0 0(S0) 0(S0) 0(S0) 0(S0) - - N964983-08 0.40 0(S0) Ri0 0(S0) 0(S0) - N964983-11 0.00 0(S0) Ri0 0(S0) 0(S0) - N964983-12 Rev D1 Remark SAO VANG AND DAI NGUYET DEVELOPMENT PROJECT Report No: Sheet … of … Date : DAILY TEST PANEL INSPECTION... Reviewed/witnessed by Name: Signature: Signature: Signature: Signature: Date: Date: Date: Date: SAO VANG AND DAI NGUYET DEVELOPMENT PROJECT Report No.: ADHESION STRENGTH TEST REPORT (FM02) Company:

Ngày đăng: 07/09/2021, 20:53

TỪ KHÓA LIÊN QUAN

TÀI LIỆU CÙNG NGƯỜI DÙNG

TÀI LIỆU LIÊN QUAN

w