Demin Water Facilities for Boilers Cleaning
-
Upload
yudha-cahaya-cinta -
Category
Documents
-
view
88 -
download
6
Transcript of Demin Water Facilities for Boilers Cleaning
TITTLE
Whom, When
by
Hendra Saputra 08 614 007 Chemical Engineering DepartmentPoliteknik Negeri SamarindaPT. Badak NGL Process Engineering Section
Pembimbing : Irmawati Syahrir, ST, MTFany Arfianto, ST
September 2010
Perancangan Fasilitas Demineralizer Water untuk Proses
Cleaning Boiler di Utilities-I
SHE-Q Moment
Use protective equipment
Focus on the job
Know your limitations
Problem
Tinjauan Pustaka
Perancangan
Cost EstimationKesimpulan dan Rekomendasi
Proses Cleaning
Boiler
Fasilitas Cleaning Belum
Tersedia
Menggunakan Demineralizer
Water
Biennial Inspect Boiler
Carbon SteelKeunggulan
Material yang paling umum di gunakan pada industri MigasKetahanan korosi tinggiMemiliki Tensile Strength yang besar ( 70 000 psi)
Kelemahan
Strength pipa akan berkurang apabila suhu lebih tinggi dari 750 oF (398,9 oC)
Material Pipa
Tipe – Tipe Manufaktur dari Pipa Carbon Steel
Pipa Carbon Steel diproduksi dengan berbagai metode berdasarkan karakteristiknya meliputi
Tekanan maksimal
Temperatur maksimalKetahanan korosiWall thickness pipaStrength pipa
Ukuran pipa dinyatakan dengan NPS (Nominal Pipe Size)
yang digunakan untuk menjelaskan struktur pipa.
NPS menyatakan
ketebalan suatu pipa
dinyatakan dalam
schedule number
NPS pipa identik dengan wall thicknessnya
a. Standard (STD) : Schedule 40
b. Extra Strong (XS) : Schedule 80
c. Double Extra Strong (XXS) : Schedule 160
Nominal Pipe Size
NPS ¾”
Schedule Number
80 (XS Pipe)
Wall thickness
0,154”
Metode Penyambungan Pipa
Space 1/16”
Kantung Cairan
Korosi Celah
Socket Welded
Joint
Existing Facilities
31-D-21A 31-D-21B
31- F - 07
31- F - 08Flow sebesar
5-10 m3/h
Flow = 147 m3/hPressure drop = 6,6 kg/cm2
31-D 23
Mud Drum
Superheater
Steam Drum
Mud Drum
Superheater
Steam Drum
31-G-64/65/66
Mud Drum
Superheater
Steam Drum
Mud Drum
Superheater
Steam Drum
31- F - 0731- F - 08
31-D-21A 31-D-21B
Rancangan line pipa
North
East
South
West
rancangan Isometric chart
2" x 1” reducer
20
0 c
m
70
cm
60
cm
10
0 c
m
Reducing tee1" x ¾” SW
¾” pipe sch 80
Straight tee ¾” SW
Union pipe ¾” SW
Gate valve ¾” 800 lbs
Elbow 90 degree ¾” SW
Coupling ¾” SW
Angle 1½” x 1½” 1 Ft
With u bolt
Condensate Tank
31 G-16/17/18Pipe Demine
Water 8"
Pipe Demine Water 2"
31-F-10 31-F-231-F-4 31-F-131-F-331-F-531-F- 631-F-731-F-831-F-9
Pipe Demine Water 8"
Pipe Demine Water 2"
Pipe Demine Wash 3/4
"
Chemical Tank
31-D-331-D-23
31-F-11
31 G-63/64/65
Chemical Tank
31-D-1B 31-D-2A31-D-21B
South
North
West East
Source A
Source B
Flow = 147 m3/jam ΔP = 6,6 kgf/cm2
BF
W T
o
Ch
em
ical T
an
k
BF
W T
o
Ch
em
ical T
an
k
BF
W T
o
Ch
em
ical T
an
k
BF
W T
o
Ch
em
ical T
an
k
Flow = 147 m3/jam ΔP = 6,6 kgf/cm2
31-D-21A
SCHEMATIC DIAGRAM LINE DEMINERALIZER WATER
Bill of Material
No Deskripsi material Unit Keterangan Harga /unit Cost
1 Pipe Seamless ¾”, Sch 80 Wall Thickness 0,154", Length 20 Ft Weight 1,47 lbs/ft, CS, ASTM 106 or 5L Gr : B 29 Batang Rp 350.000,00 Rp 10.150.000,00
2 Elbow Pipe SW 90 Degree Size ¾" Rate 3000 lbs CS, ASTM A350 55 EA Rp 83.378,00 Rp 4.585.790,00
3 Tee Straight CS ¾” Rate 3000 lbs CS ASTM A105 SW 7 EA Rp 32.000,00 Rp 224.000,00
4 Tee Reducing SW 1" x ¾" Rate 3000 lbs, CS, ASTM A106, Gr : B 2 EA Rp 44.556,00 Rp 89.112,00
5Valve Gate ¾” Rate 800 lb Treaded and SW End Trim 13%
CR, Body MATL, CS, ASTM A105, Non Renewable Seat, Solid Wedge, Handwhell Operational
6 EA Rp 540.500,00 Rp 3.243.000,00
6 Union Pipe SW Size ¾” Rate 3000 lbs CS ASTM A105 6 EA Rp 49.500,00 Rp 297.000,00
7 U-bolt Galvanis for Ø ¾" Pipe with 2 Nuts 40 EA Rp 3.000,00 Rp 120.000,00
8 Angle CS 1 ½" x 1 ½" ASTM A36 20 Ft/Length 20 Ft Rp 27.000,00 Rp 540.000,00
9 Coupling ¾” CS SW 8 EA Rp 26.400,00 Rp 211.200,00
Total Bill of Material Rp 19.460.102,00
Bill of Fabrication
No Item Fabrikasi Unit Keterangan Harga/Unit Cost
1 Pemotongan Pipa 55 Joint Rp. 79.075,88 Rp. 4.349.173,40
2 Pengelasan Pipa 137 Joint Rp. 183.255,64 Rp. 25.106.022,68
3 Fabrikasi Pipa 28.302 6 Meter Rp. 236.903,80 Rp. 6.704.851,35
Total Bill of Fabrication Rp. 36.160.047,43
Cost yang diperlukan untuk Pembuatan Line Pipa Baru
adalah Sebesar Rp. 55.620.149,43
Cost Estimation
Sumber air demin untuk fasilitas cleaning Boiler di Utilities-I diambil dari chemicals injection facilities di dekat Boiler 31F-2/3 dan 31F-7/8.
Rancangan line pipa baru dengan pipa bermaterial dasar baja karbon
Nominal pipe size yang digunakan sebesar ¾”
Metode penyambungan pipa dengan metode Socket Welded Joint
Estimasi biaya dibutuhkan untuk pembuatan line pipa baru sebesar Rp. 55.620.149
PT Badak memasang fasilitas baru untuk cleaning Boiler di Utilities-I dengan sumber line air demin di
Chemicals Injection Tank 31D-1A/2A dan 31D-21A/B