Re : Job. Workshop , / To repair Cooling Tower by FRP (Fiberglass Reinforced Plastic) Lining
Item
Description
Unit price
Qty
Amount
1
To take-off & reinstall the Motor and Rotor of Cooing Tower by xx staffs
–
1 Job
–
2
To repair the Cooling Tower : Diameter x Hight ( M. x M. ) : by 3 mm.thickness FRP lining (Grouting Putty + Primer + 2 layers of CSM+Topcoat) : Surface Area = Approx. s.q.m
xxx.-/m2/mm.
m2 x mm.
3
To clean the Media & Honeycomb in Cooling Tower by High Pressure Water Jetting Machine
SUMMARY :
เข้าหน้างาน เพื่อเตรียมลงเคลือบ แต่มีปัญหาไม่สามารถเปิดหน้างานได้ หัวหน้าช่างดูงานแล้ว คิดว่าไม่สามารถจบงานได้ ขอเลื่อนไปก่อน
• To make concrete lining on Concrete Sump Pit size 0.95 x 0.95 x 0.9 M. depth with Chemical Coating which resists to Aqueous Mixture Solution PH 6 -10 at ambient temperature
• To make concrete lining on concrete foundation at L-Cl2 drying unit.ที่แท่น CP-551 A ขนาด ขนาดแท่นหลัก H940 x W1060 x L2450 + แท่นรอง H200 x W350 x L350 + แท่นรอง H170 x W 920 x L1450
• To make Flakeglass lining on machine base frame, motor cover and guard ,Cl2 compressor. ที่แท่น CP-551 A ขนาด ขนาดแท่นหลัก H940 x W1060 โครงฐานเหล็กรองเครื่อง, มอเตอร์ 50KW ขนาด Ø50 x 60 cm. และ ป๊มเคมี บนแท่น CP-551 A
REPORT :
1) Lining waste water Sump Pit ( เคลือบบ่อซั้มคอนกรีต ) at rotary shop
ระบบเคลือบ SW 6920 Series x thinkness 3 mm. : Vinylester Laminate Lining ( FRP ) ผนังด้านในบ่อซัม และ ขอบบ่อคอนกรีต
2.2 ระบบเดิมที่วางแผนไว้ เคลือบฐานคอนกรีตใต้ เครื่องคอมเพรสเซอร์ ที่บริเวณ H2SO4 cooler unit : CP-551 Concrete Base ขนาด พื้นที่ โดยประมาณ กว้าง 1.8 เมตร x ยาว 3 เมตร x สูง 0.5 เมตร และบริเวณโดยรอบใต้ฐาน จนถึงรางระบายน้ำ (Trench) ซึ่งห่างจากขอบฐาน ประมาณ 20 ซ.ม
Coating Concrete Base of H2SO4 Cooler Units + 20 CM. from Base to Trench : CP 551 A ระบบเคลือบ SW 6160 Series x thickness. 3.5 mm : Vitrious Epoxy Laminate Flooring ( FRP ) – 3 layers (M/M/M)
Neoprene Packing ประเก็นยาง หน้าแปลน Class 600 1/2″
4 Pc
16
สลักน็อตร้อยยึดหน้าแปลน Bolt+W+SW+Nut M14 x 2.0 White Zinc Plating 10 µm. Grade 8.8 (M14x2.0 White Zn-plating) (Bolt+Washer+Spring Washer+Nut) size M14 (ISO) x length 75 mm. ( Bolt + nut + washer M14 x L 70 mm. )
8 EA
หมายเหตุ : ใช้งานการทดสอบการอัดน้ำ Hydrostatic Pressure Test ที่ 150 – 200 bar ทิ้งไว้ Soaking Time > 24 ชม. เป็นอย่างน้อย
ขอแก้ไข Heating Coil เป็นวัสดุ สแตนเลส เกรด SUS 316 หรือ SUS 316 L
ใช้ความร้อนจาก Steam Boiler ต้มกรดกำมะถันร้อน
หรือ แก้ไข Heating Coil เปลี่ยนไป ใช้เป็น ท่ออ่อนสแตนเลสตัวหนอนเปลือย ไม่มีลวดแสตนเลสถักหุ้มด้านนอก Flexible Stainless Steel Hose SUS 316/0 หรือ SUS 316L/0
RE : * Job. Flex SUS 321_0 OL 0.56 M. NJ14x NJ10
= ประกอบ ท่ออ่อนสแตนเลสเปลือย Flexible SUS 321/0-10 ( 5/8”) x 0.56 M. ( สุด หัวตัวเมีย -หัวตัวเมีย ) พร้อมปลายท่อเชื่อมหัวไฮดรอลิค 14NJ / 10NJ เหล็กชุบซิงค์ ( มีรอยเชือมต่อชน ) ทั้งสองข้าง = ตามแบบ =
Drwg. No. Flex SUS 321_0 OL 0.56 M. NJ14x NJ10 Flexible Stainless Steel Hose Type FMA 321/0 for Hot Oil Return Line ItemDescriptionQty.
SUBJECT : THE INTERNAL PRESSURE TESTS ON GRE COMPOSITE PIPE -175 PSI & ACCESSORIES BY HYDROSCAN TESTER:
STD ASTM D 2992: LONG-TERM HYDROSTATIC PRESSURE (LTHP) – PROCEDURE B
STD ASTM D 1599: SHORT-TERM TEST (WEEPING UNDER STATIC PRESSURE)
STD ASTM D 2143: SHORT-TERM CYCLIC PRESSURE FOR 750 CYCLES
PRINCIPLE OF THE TESTS
(1) ASTM D 2992 PROCEDURE B:
TESTED BY EQUIPMENT IN LAB ACCORDING TO THE STD TEST METHOD, IT EXTRAPOLATES THE FAILURE POINTS OF STRESS VALUES AT LEAST 10,000 HRS WHICH MEANS AROUND 420 DAYS FOR THIS TEST, AFTER APPLICATION OF A SAETY FACTOR OF 3 OR TEST AT 525 PSI (APPROX 36 KG/CM2).
WE WLD REDUCE THE TESTING HRS BY CONDITION ACCLERATION SUCH AS INCREASE THE PRESSURE VALUE AND THEREAFTER USE THE LEAST SQUARES CALCULATION METHOD TO FIND OUT THE LTHP OF MATERIALS.
A DESIGN SERVICE LIFE OF 50 YRS OR 438,000 HRS HAS BEEN ASSUMED N THEN PLOTS THE LINEAR REGRESSION GRAPH.
THE ESTMATED LTHP CALCULATED BY THE FLWG LINEAR FUNTONAL RELATIONSHIP:
Y = A + BX
Y = 1ST VARAIBLE, X = 2ND VARIABLE, B = SLOPE OF THE LINE, A = INTERCEPT ON THE Y AXIS
(2) ASTM D 1599:
ACCORDING TO THE SPECIFICATION, THE FORMULA CALCULATED AS FLWS FOR THE REFERENCES:
T (WALL THICKNESS) = 0.02 D (INNER DIAMETER)
S = P (D – T) / 2T
S = P X 25
HOOP STRESS OF GRP PIPE (S) = 2,700 KG/CM2
P (INTERNAL PRESSURE) = AT LEAST 108 KG/CM2
THE TEST EQUIPMENT COULD PROVIDE AT LEAST 6 TIMES OF THE DESIGN PRESSURE (175 PSI) OR THE “MAXIMUM SERVICE PRESSURE”.
IN THIS CASE, THE TEST PRESSURE VALUE = MAX. SERVICE PRESSURE X SAFETY FACTOR OF 3
MAX. SERVICE PRESSURE = 175 X 6 X 3 = 3,150 PSI (APPROX. 217 KG/CM2)
(3) ASTM D 2143:
APPLIED THE CYCLIC INTERNAL PRESSURES AT SERVERAL DIFFERENT PRESSURE LEVELS N MEASURING THE CYCLES BY TESTED FOR 750 CYCLES AT CYCLING RATE TO AT LEAST 25 + 2 CYCLES/MIN.
TESTING PROCEDURE
STEP (1) : PREPARED THE TEST SPECIMENS
STEP (2) : MOUNTED THE BOTH HOSE ENDS OF TEST PIECE INTO THE CLAMPING HEADS OF TESTER
STEP (3) : INSTALLED THE SPECIMEN ON HYDROSCAN TESTER
STEP (4) : SET THE PRESSURE N CLOSED THE TEST CHAMBER WHILE APPLYING TEST PRESSURE
STEP (5) OPENNED THE CHAMBER AFTER THE TEST N DRAINED THE TEST FLUID FROM TEST PIECE
TEST RESULT
DATE OF TEST : TIME : 8:00 – 17:00 HRS. PLACE :
TEST OPERATOR : AUTHORIZED WITNESSES : ASSIGNED BY :
TESTER : MICROPROCCESSOR-CONTROLED P 200 UNIMATICONTROL-E SYSTEM , S/N 3PEN AC 400V, P/N 80, MFG 03/00, I 0.9 A, P 0.4 KW, 50 HZ
TEST SUBJECT : INTERNAL PRESSURE TESTS OF COMPOSITE TUBES & ACCESSARIES FOR OIL&GAS FIELD APPLICATION SPECIMEN (1) : 45O ELBOW LONG REDIUS W/ CLOSED END HOSES MOUNTING, SIZE 100 MM., GRE COMPOSITE PIPE -175 PSI
ONE OF THE CLOSED END LIDS LEAKED AT 2 BAR (29 PSI) PRESSURE DURING THE TEST OPERATION, WE HV TO DO THE SUPPORT OR FIXTURE ON ELBOW SPECIMEN. SPECIMEN (2) : 90O ELBOW LONG REDIUS W/ CLOSED END HOSES MOUNTING, SIZE 100 MM., GRE COMPOSITE PIPE -175 PSI
WE HV NOT TESTED YET BECAUSE OF FAILURE ON THE LAST CLOSED END LIDS ON 45O ELBOW, WE HV TO DO THE SUPPORT OR FIXTURE ON ELBOW SPECIMEN. SPECIMEN (3) : 0.85 M. LENGTH SHORT STRAIGHT PIPE W/ 4 X STUD-BOLTS SUPPORT ON AXIAL DIRECTION + CLOSED END HOSES MOUNTING, SIZE 100 MM., GRE COMPOSITE PIPE -175 PSI
DUE TO THE SPECIMEN CONSUMES A LARGE VOLUME OF TEST FLUID THEN THE PRESSURE LINE N HIGH PRESSURE PUMP UNIT IN OUR HYDROSCAN TESTER HD THE LEAKAGE N OVERHEAT PROBLEMS. WE THEN DECIDED TO TERMINATE THE TEST PROCESS TEMPORARILY, OTHERWISE OUR TESTER WLD BE MORE DAMAGED N OUT OF ORDER.
WE WL CONTINUE THE APPROVAL TEST SOON AFTER OUR TESTER WS CHECKED N REPAIRED.
CONCLUSIONS
1) ELBOWS N ACCESSARIES :
WE HV TO IMPROVE THE CLOSED ENDS OF ELBOW SPECIMEN BY USING ANY SUPPORT OR FIXTURE ON THE CIRCUMFERENTIAL OR AXIAL DIRECTION.
2) STRAIGHT TUBES OR PIPES :
WE HV TO REVISE THE TEST PROCEDURE N SPECIMEN SIZE IN ORDER TO CONSUME LESS TIME N THE VOLUME OF TEST FLUID, OTHERWISE OUR HYDROSCAN TESTER WL BE SPOILED.
OVERVIEWS: –
THE APPROVAL TESTS FAILED DUE TO THE LEAKAGE OF PRESSURE LINE N OVERHEAT PROBLEMS; WE TEMPORARILY TERMINATE THE TEST BY OUR HYDROSCAN TESTER FIRST BECAUSE WE R AFRAID OF THE TESTER IS DAMAGED. WE HV TO MAINTAIN N REPAIRS OUR TESTER TO CONTINUE THE APPROVAL TESTS.
REMAINING AT YR DISPOSAL FOR ANY CLARIFICATION.IF U HV ANY QUERIES, PLS DON’T HESITATE TO CONTACT US.
THANKS FOR YOUR KIND CORPORATION.
B.RGDS,
SUPPAWIT H.
THE WORKING SITE ON PTTEP-BONGKOT PRODUCTION PLATFORM IN GULF OF THAILAND, SONGKHA PROVINCE FOR THE DESIGNING N COST-ESTIMATION DURING SEP. 25-26, 2002 N PROVIDE FOR SUBMITTING A TENDER.
I FLY TO PTTEP-BONGKOT PRODUCTION PLATFORM W/H A PTTEP ’S STAFF (THE PROJECT OWNER) N MY SUBCONTRACTOR TO SURVEY THE FLWG TENDERING PROJECTS. THEY R :-
Jobs to PTTEP Year’ 2002
Pipe Lining for the Anti-Fire system , PTTEP Bongkot Production Platform
WR – 974 : COMPRESSOR TECHNICAL ROOMS
WR–977, WR–999 N WR–1000 : TURBO COMPRESSOR N COOLING SYSTEMS
OBA-801 piping system GRP offshore Piping Valve Vessel , Material Testing & Installation for marine application Non-Hazardoud & Harzardous replacement with GRP piping valve vessels
Offshore Oil production platform
PTTEP Oil-rig
WR – 974 : COMPRESSOR TECHNICAL ROOMS
PTTEP-BONGKOT Production Platform WR-974 Complete Certification SO10004185
Oil & Gas Field Application- Certificate Offshore _ Sea Survival PTTEP
WR–977, WR–999 N WR–1000 : TURBO COMPRESSOR N COOLING SYSTEMS
ETC.
THE ILLUSTRATION OF PTTEP – BONGKOT PRODUCTION PLATFORM
PTTEP Offshore Projects
Reference related on marine/offshore oil-field projects.
Our service on Marine-offshore application projects
Item
Project Names
Description
1
Pipe Lining for the Anti-Fire system , PTTEP Bongkot Production Platform , we worked with ALSTOM Contracting (Thailand) as sub-contractor.
Pipes & Elbows internal lining with non-stick ceramic carbide
2
WR-900 & WR-977, PTTEP Bongkot Production Platform
To be involved in the installation project of the sheild panels to protect the signal transmitters from hot-air from turbo-compressors & cooletrs on the 1st deck of PP
3
WR-974 & WR-1000 Service Order : 10004185 , PTTEP Bongkot Production Platform
To repair the roof-top of turbo-compressor technical rooms TEK 3200 & TEK 3300 on the upper deck of PP
4
Submarine hose failure , PTTEP Bongkot field , FSO1 Interface
To be a consult for the connection of subsea riser hoses H3006, H3737S and H3030 at about 58 meters below the turret. We gave a consult through the RVA (Remote Visual Apparatus ) device.
5
UNOCAL Arawan Field
To be a consult for the renewal project of the Float Submarine Hoses and Hoisers ( ” Mooring System” ) nearby the FSO tanker.
6
JV PTTEP Inl’t / SEATECH / ITD J.Kor Yor
We are the local representative of hydraulic products in Thailand for oil-field application. Our pending jobs involved in Drilling and Well Service.
pipeline-transportation-welding-riser-installation-for-offshore-subsea-pipelay-operations
Subsea Crude Oil Pipes at logistic warehouse near by the Jetty
CP 551 – แท่น A
CP 551 – แท่น B และ C
