Erection Instruction - Water Cooled Condenser
Complete
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• PROJECT CODE: B70170EA
• PROJECT NAME: PULAU INDAH COMBINED CYCLE POWER PLANT
• OWNER: PULAU INDAH POWER PLANT SDN BHD
Equipment Name
Revision
Customer Doc. Number
0-WD321-ZZ620-00001
Document Title
Erection Instruction - Water Cooled Condenser Complete
Purpose
For Information
AP Doc Code
PLI/00/H/MAG01-CA10/EI/001
Document ID
1GC004025
Revision Date
2021-11-15
Revision
B
B
OWNER
PULAU INDAH POWER PLANT SDN BHD
Contractor (BUYER)
Sub-Contractor (Seller)
SEQUENCE REVISION
B
Sheet
Information Class, if applicable, on pg. 1 et sqq
Erection Instruction - Water Cooled Condenser
Complete
Project Title
Pulau Indah
Cross checked
Department
Name
Date
Signature
GAS
Olivier Lienart
Pinalkumar SHAH
10-11-2021
10-11-2021
Electronically Checked
Electronically Checked
Revision History
Rev.
Revision Date
Created by
Checked by
Approved by
A
15-07-2021
O. Lienart
N. ANAND
S. GROSSI
B
Description current Revision
Replaces
Customer Code
Brief Description
Project Document Code
PLI/00/H/MAG01-CA10/EI/001
Responsible Dept.
Created by
Checked by
Approved by
Format
PE-MHX
N. ANAND
W. BEUTH
S. GROSSI
DIN A4
GE POWER
Gas Power
Systems
Document Type
Document Status
EI
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Document Title
Identification Number
Erection Instruction - Water Cooled
Condenser Complete
Rev.
Date
Lang.
Sheet
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2021-11-15
en
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1GC004025
GBM Gas Master Doc Temp (ZZZ)
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© COPYRIGHT 2021 General Electric Company
All rights reserved. The information herein is Proprietary and Technically Exclusive content that is solely owned by General Electric Company and/or
its affiliates. Thus, it is being provided with the explicit expectation of restricted and privileged use. All recipients of this information shall be deemed
to have agreed not to make duplications, reproductions of any nature by any means, modifications, disclosures, or use any portion of this material;
except as is expressly authorized in writing by the General Electric Company, and/or its legitimate affiliates.
Released
Table of Contents:
1.
Objective ............................................................................................................................................................... 4
2.
Scope of Application ........................................................................................................................................... 4
3.
Reference Documents ........................................................................................................................................ 4
4.
Terminology, Definitions, Abbreviations ........................................................................................................ 6
5.
General check of documentation ..................................................................................................................... 6
6.
7.
5.1.
Review of Erection documentation provided by GE ....................................................................................... 6
5.2.
Documents to be provided by the erection contractor .................................................................................... 6
General check of component and materials................................................................................................... 7
6.1.
Delivered Condenser parts .............................................................................................................................. 7
6.2.
Check all necessary erection tools and materials provided by erection contractor ...................................... 7
6.3.
Check of Condenser foundations .................................................................................................................... 7
Installation of the Hotwell................................................................................................................................... 9
7.1.
8.
9.
7.1.1.
Aircooler venting system (503,504) ........................................................................................... 10
7.1.2.
Protect Hotwell from dirt and damage ....................................................................................... 10
7.1.3.
Installation of the guiding assembly unit for the Hotwell ........................................................... 10
Installation of condenser modules ................................................................................................................. 12
8.1.
General remarks for the erection / assembly of the Condenser modules ................................................... 12
8.2.
Preparation of sliding bearings ...................................................................................................................... 12
8.3.
Installation of shell lower module (101) ......................................................................................................... 14
8.4.
Installation of shell upper module (120) ........................................................................................................ 17
8.5.
Assembly of Hotwell (501) to Shell module (101)......................................................................................... 20
Assembly of the Neck ....................................................................................................................................... 22
9.1.
10.
Placing the Hotwell (501) ................................................................................................................................. 9
Assembly of the Neck (601,602,603,604 - Neck delivered in four parts) .................................................... 22
Assembly of the Neck to Shell and Neck to Steam Turbine ...................................................................... 24
10.1. Assembly of neck (601,602,603,604) to shell (101,120) .............................................................................. 24
10.2. Assembly of neck to steam turbine exhaust ................................................................................................. 26
11.
Assembly of remaining Condenser components ........................................................................................ 27
11.1. Flashbox (901) ................................................................................................................................................ 27
11.2. Level pipe (502) .............................................................................................................................................. 28
11.3. Aircooler drain (106) ....................................................................................................................................... 28
11.4. Remaining components and small parts ....................................................................................................... 29
12.
Final tasks ........................................................................................................................................................... 30
12.1. Installation of spray nozzles in the Make-up water line and Flashbox ........................................................ 30
12.2. Connections for Condenser Earthing ............................................................................................................ 31
12.3. Internal inspection of water boxes ................................................................................................................. 31
12.4. Corrosion protection ....................................................................................................................................... 32
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12.5. Cleaning .......................................................................................................................................................... 32
12.6. Acceptance of condenser .............................................................................................................................. 32
13.
Before operation – Final tasks ........................................................................................................................ 35
13.1. Installation of blanking plates on the Performance Pressure measurement connections (P1 to P6) ........ 35
13.2. Cleanliness of the Condenser after Erection ................................................................................................ 35
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1.
OBJECTIVE
Objective of this document is to show the basic principles and steps needed for erecting the
Condenser of Pulau Indah project.
2.
SCOPE OF APPLICATION
The erection procedure described hereafter is a recommendation. It does not relieve in any way the
erection contractor in charge from its responsibilities. The erection contractor is requested to carry out
the erection works according to his own experience and to the project site specific requirements and
site regulations. Sequence of erection may be changed if appropriate.
All sketches below are typical for reference. For latest applicable ones check in [4]1
As built Erection procedure from contractor shall be submitted to GE GAS HEX business for
information.
Revision marks will be highlighted in yellow
3.
REFERENCE DOCUMENTS
[1]
1GC003978
– PLI/00/H/MAG01-CA10/MI/001
– List of Connections
[2]
1GC003979
– PLI/00/H/MAG01-CA10/EA/001
– Equipment Arrangement drawing
[3]
1GC004021
– PLI/00/H/MAG01-CA10/MD/001
– Erection assembly overview 3D
[4]
1GC004022
– PLI/00/H/MAG01-CA10/MD/002
– Erection assembly 2D
[5]
1GC004023
– PLI/00/H/MAG01-CA10/MD/003
– Shipping and Handling Drawing
[6]
1GC004020
– PLI/00/H/MAG01-CA10/MA/001
– Erection Item List for [4] and [5]
[7]
1GC004026
– PLI/00/H/MAG01-CA10/MD/004
– List of Weld seams at site
[8]
1GC004027
– PLI/00/H/MAG01-CA10/EQ/001
– ITPL Site assembly
[9]
1GC004028
– PLI/00/H/MAG01-CA10/EI/002
– Requirements for On-Site Painting
[10] 1GC004063
– PLI/00/H/MAG01 -CA10/MD/013
– Interface drawing for foundations
[11] 1GP033533
– PLI/00/E/009b- --002/DO/120
– Painting and Coating System
[12] 1GP033548
– PLI/00/E/009b- --002/DO/122
– Standard Color Code
[13] 1GC000246
– GAS/00/H/003b- --002/MS/015
– Preservation storage at site
[14] 1AHA066197 – GAS/00/H/003b- --002/EI/001
– Erection Instr. Foundation for heat
exchangers
[15] 1GC001276
– GAS/00/H/MAG01-CA10/TR/001
GE POWER
Gas Power Systems
– Elevation of foundations
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4.
TERMINOLOGY, DEFINITIONS, ABBREVIATIONS
SHL
SHeLl
HW
HotWell, in this project included in the Module
FB
FlashBox
NK
NecK
WB
WaterBox
I/O WB
Inlet / Outlet WaterBox
RWB
Reversing WaterBox
Module
Assembly of I/O WB, RWB, SHL and HW, excluding sump
ST
Steam Turbine
TOS
Top Of Steel
TOC
Top Of Concrete
NDE
Non-Destructive Examination
To be noted that all along this instruction:
-
Numbers written in brackets are referenced documents in Section 3:
e.g. [2] => refer to the Equipment Arrangement Drawing
-
Numbers written in parenthesis refers to the item number of the Erection Item List [6] parts:
e.g. (102) refers to Item No.2 in the Erection Item List which is Condenser Module
5.
GENERAL CHECK OF DOCUMENTATION
5.1.
Review of Erection documentation provided by GE
All documents in Section 3 shall be checked for:
5.2.
-
Completeness1
-
No of set available
Documents to be provided by the erection contractor
Completeness and Validity of:
1
–
Welding Procedures Specification (WPS) and corresponding procedure qualification records
(PQR) for [7] and [8]
–
Welder’s qualification records for [7] and [8]
–
NDE procedures and operators qualifications for [7] and [8]
–
Test report forms for [7] and [8]
For revision indexes, refer to the latest transmittal slip
Identification Number:
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6.
GENERAL CHECK OF COMPONENT AND MATERIALS
6.1.
Delivered Condenser parts
Check delivered condenser parts according [3], [4], [5] and [6] for:
6.2.
-
Completeness
-
Identification
-
Transport damages
-
Cleanliness, corrosion protection
Check all necessary erection tools and materials provided by erection contractor
All necessary tool and materials provided by the erection contractor shall be checked for:
-
Correct work conditions:
e.g. cranes, winches, hydraulic jacks, strand jacks
-
welding machines, welding filler material and consumables according WPS
-
temporary supporting element, sliding rails
-
etc.
Note:
All above mentioned auxiliary facilities are not in the scope of supply of the Condenser supplier.
6.3.
Check of Condenser foundations
Check all the following point in respect of [2], [3], [4], [10], [14], [15]
-
Conformity to drawings (civil works)
-
Arrangement
-
Levels / Elevations
-
Dimensions
-
Cleanliness
-
Prepare foundations (FF1S, FF1M, FF2S, FF4S, FF2B, FF2M) according to the instructions in
charge of Civil works. Note this document contains simple guidance to assure correct sequence,
but does not provide instructions to assure good workmanship for Civil scope.
-
Check arrangement, level / elevation & alignment of embedded plates for conformity to the outline
drawing (tolerance in Z-direction ±3mm in regard to plant elevation and ±1mm among the different
foundation plates) and record it in [15].
-
Filled [15] shall be submitted to GE HEX team for checking prior the installation of the Condenser.
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Figure 6.1 - Condenser foundations [2]
Figure 6.2 - Condenser supports [2]
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7.
INSTALLATION OF THE HOTWELL
7.1.
Placing the Hotwell (501)
According [4], [5], [6] and [8]
-
Before erecting the Hotwell (501), place Flashbox drain lines (902 and 903), temporary on the floor
below the Hotwell and apply the final paint according Figure 7.1, in case there is no access later
on.
-
Place temporary beams (e) on foundation in order to support Hotwell. (See Figure 7.3)
-
Place the Hotwell (501) in its final position temporary and secure.
-
Remove temporary transport stiffeners on the open side of the Hotwell, if applicable.
Figure 7.1 – Typical Final Painting detail2
2
The site weld connection can be any type of weld specified in the erection documentation [4] and [7] (e.g. Fillet weld, Buttweld, etc)
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7.1.1.
Aircooler venting system (503,504)
According [4], [5], [6] and [8]
-
7.1.2.
Protect Hotwell from dirt and damage
-
7.1.3.
Place the air cooler drain pipes and supports (503 and 504) in the Hotwell, but do not weld
Protect Hotwell upper side from dirt and damage with sheets (f) (see Figure 7.3).
Installation of the guiding assembly unit for the Hotwell
According [2], [4], [5], [6], [8] and [15]
-
Prepare guiding assembly unit according to Figure 7.2
-
Place the whole guiding assembly unit FF1M (505) between the embedded foundation plate and
Hotwell in the correct position, but DO NOT WELD yet the guiding assembly plate FF1M (505) to
the embedded foundation plate until the Hotwell is welded to the module
Figure 7.2 - Support FF1M
h
Figure 7.3 – Typical Hotwell with sump detail
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8.
INSTALLATION OF CONDENSER MODULES
CAUTION: The waterboxes internal walls are protected by lining/coating. It is not
permitted to perform any welding work or heating on the waterboxes.
8.1.
General remarks for the erection / assembly of the Condenser modules
According [4] and [5]:
8.2.
-
Condenser modules are only allowed to be rested on their proper supports or transport frame
-
Condenser parts shall be only lifted at their lifting lugs
-
Condenser modules shall be lifted to their final position and NOT pushed/pulled on beams
-
Any forces applied to the condenser modules shall be only as shown in [5] or condenser supports
(pushing up)
Preparation of sliding bearings
According [2], [4], [5], [6], [8] and [15]
-
Remove the protective foam from the sliding bearings
-
Prepare all sliding bearings according to Figure 8.1
-
Place plates for bearings FF1S (103), FF2S (103), FF4S (103) & FF2B (104), and guiding
assembly unit for bearing FF2M (102), delivered by GE POWER onto the embedded foundation
base plate, see Figure 6.1
-
Put sliding bearings (117) into plate of FF2M and FF2B and sliding bearings (118) into plate of
FF1S, FF2S & FF4S.
-
Recheck arrangement, level / elevation & alignment for conformity to the outline drawing
(tolerance in Z-direction ±3mm in regard to plant elevation and ±1mm among the different
foundation plates)
-
Where necessary, use shim plates below the sliding bearing base plate FF1S, FF2S, FF4S
FF2B & FF2M)
-
Weld all sliding bearing plates (FF1S, FF2S, FF4S & FF2B) to the embedded foundation base
plate
-
DO NOT WELD the guiding assembly unit plate (FF2M) until the modules are installed
and aligned and welded with the Hotwell.
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Figure 8.1 - Supports Detail
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8.3.
Installation of shell lower module (101)
-
Condenser lower module (101) is installed on a transport frame (119) that need to be
removed before resting the condenser on the foundation see Figure 8.6
-
Cut the lock plates, marked yellow, from the transport frame Figure 8.7.
-
Grind the remaining part of the lock plates from the shell bottom plate.
-
Lift the condenser module and rest it on the foundations.
-
Measure gap between sliding bearings and condenser supports. No gap is allowed. In case gaps
are found, or less than 50% of the two adjacent area of the sliding bearing and the condenser
support are in contact, condenser shall be lifted again and shim plates below the sliding bearing
base plate FF1S, FF2S, FF4S, FF2B & FF2M provided in 1mm (121 and 123) and 2mm (122 and
124) thickness as indicated in Figure 8.2 shall be placed
-
In case shim plates are needed, ensure tack weld between shim plate and condenser support is
executed as indicated in Figure 8.2
-
Place lower shell module back in place
-
Recheck level / elevation & alignment for conformity below supports (No gap allowed)
-
Make sure that condenser tubes shall not be damaged (protect against welding spatters, grinding
contamination, spatters from flame cutting, etc.).
-
Remove all temporary covers on the condensate drain openings at shell bottom of the upper
module (120) and at top and bottom of lower module (101). See Figure 8.12
-
Remove all protecting sheets (f) from the Hotwell (501), see Figure 7.3
-
Remove all temporary protecting sheets from the sliding bearings.
-
Check gliding plate of the sliding bearings is installed with the polished side against the gliding
block surface.
-
Check cleanliness
-
Place the lower shell module (101) in its final position in relation to elevation and center line of
turbine and arrangement of the cooling water nozzles onto the sliding bearings
Figure 8.2 - Typical Shim plates assembly examples
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ATTENTION: Lift-up of the module shall be only in vertical direction as shown in shown in Figure 8.3. It
is FORBIDDEN to lift it in any other way (e.g. 1 point or 2 points).
Lifting angles are shown in [5] and shall be respected.
Figure 8.3 - Upper and Lower module lifting
Figure 8.4 - Upper and Lower module lifting
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Example of appropriate lifting of upper and lower module ready for shipping is shown on Figure 8.5
Figure 8.5 Upper and lower module lifting - example
Figure 8.6 - Lower Module Transport Frame
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Figure 8.7 - Connection Transport Frame and Modules
8.4.
Installation of shell upper module (120)
According [2], [4], [5], [6], and [8]
-
Condenser upper module (120) is installed on a transport frame (129) that need to be
removed before resting the condenser on the lower shell module. Figure 8.8
-
Cut the lock plates from the transport frame. Figure 8.7
-
Grind ALL the remaining part of the lock plates from the shell bottom plate.
-
Lift upper shell module (120) with crane and place it onto the lower module (101).
-
Install connecting plates (105), See [4] and Figure 8.11, between upper and lower shell modules.
-
Weld condenser shells and connecting plates. See Figure 8.9 and Figure 8.10.
Figure 8.8 - Upper Module Transport Frame
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Figure 8.9 – Typical seal welds for modules
Figure 8.10 - Typical seal welds for modules - Detail
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Figure 8.11 - Weld connection plates - Typical
Figure 8.12 - Module Assembly
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8.5.
Assembly of Hotwell (501) to Shell module (101)
According [4], [5], [6], [8] and [15]:
- Lift Hotwell (501) to lower shell module (101) and weld Hotwell (501) to shell (101) according to
welding procedure. (See Figure 8.14)
-
In case of gaps between the transport stiffening on top of the hotwell and the shell bottom, place
internal stiffening inside the hotwell close to the bracings and jack it up from the bottom until the
gap is lower than 2mm and then perform the welds. (See Figure 8.13)
-
Align guiding assembly unit (FF1M), respect the clearance of the lateral fixation, as shown
on the erection drawing [4].
-
Weld plate (FF1M) to the embedded foundation base plate
-
Align guiding assembly unit (Item FF2M), respect the clearance of the lateral fixation, as
shown on the erection drawing [4].
-
Weld plate (FF2M) to the embedded foundation base plate
-
Fit and weld drain pipes (503) to condenser bottom wall and Hotwell using plates (504) (see
section in [4]). Weld the HW to lower shell bottom see detail in [4].
-
Remove temporary beams, if any.
-
Weld stainless steel gliding plate of all sliding bearings (FF1S, FF2S, FF4S, FF2B & FF2M) to
bottom of the supporting plate (see Figure 8.2)
Figure 8.13 - Jacking points for Hotwell welding
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Figure 8.14 - Hotwell to shell main welds - Outside
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9.
ASSEMBLY OF THE NECK
9.1.
Assembly of the Neck (601,602,603,604 - Neck delivered in four parts)
ATTENTION: NOT all existing lifting lugs are designed to lift-up the whole
Neck. Specific lifting lugs for this task are marked on the Figure 9.2
Lifting angles are shown in [5] and shall be respected.
According [4], [5], [6], [8] and [15]:
-
Assembly of the four neck pieces (601,602,603,604) by using the guiding pins, see Figure 9.1
and lock / fix them (614, 615 and 616) with the distance blocks in locking pins (614, 615 and 616),
and secure them.
-
Place and fix all outer connection parts (ribs, beams where applicable)
-
Perform all neck welds (see Figure 9.1)
-
NDE of weld seams.
Figure 9.1 - Neck Assembly
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Figure 9.2 - Neck Assembly Lifting
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Gas Power Systems
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10.
ASSEMBLY OF THE NECK TO SHELL AND NECK TO STEAM TURBINE
10.1. Assembly of neck (601,602,603,604) to shell (101,120)
According [4], [5], [6], and [8]:
-
Align neck to shell in relation to elevation and centerline (CL) of turbine exhaust and shell
(Please note: The centerline (CL) of the Steam Turbine Exhaust and CL of the Condenser is
marked by center punching on the outside of the plates on both ends for a length of 200mm).
-
Place temporary beams on foundation in order to support Neck, if necessary.
-
Install connection parts (608) (between shell and neck) on the internal side of the Neck.
-
Weld neck (incl. Connection plates) to shell according to welding procedure, see Figure 8.11,
Figure 10.2, Figure 10.3 and Figure 10.4
-
Install loose bracings (624, 625, 626 and 627) inside the neck.
Figure 10.1 - Neck to shell main welds - Outside
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Figure 10.2 - Neck to shell welds overview - Internal
Figure 10.3 - Welds neck ribs to shell - Typical
Figure 10.4 - Welds Neck grid to shell - Typical
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10.2. Assembly of neck to steam turbine exhaust
According [4], [5], [6], and [8]:
-
Fit connection frame (622 & 623) to neck and turbine steam exhaust and tack weld (see detail on
[4] and in
-
Figure 10.5).
-
Weld connection frame (622 & 623) to neck and to turbine steam exhaust.
-
Remove temporary beams, if needed.
Figure 10.5 - Steam Turbine connection
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11.
ASSEMBLY OF REMAINING CONDENSER COMPONENTS
11.1. Flashbox (901)
According Figure 11.1, [4], [5], [6], and [8]:
-
Fit flashbox (901) to neck (603)
-
Fit the U-Pipes (902,903,904 and 907) on the Flashbox (901) and the Hotwell (501).
-
Check correct position.
-
Install the FB support (910, 911 and 912) to the neck (603) and tack weld it.
-
Weld flashbox, support and all connections according welding procedures.
-
NDE of weld seams
Figure 11.1 - Flashbox
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11.2. Level pipe (502)
According Figure 11.2, [4], [5], [6], and [8]:
-
Clean internal of pipes before connecting to Hotwell
-
Fit Level pipe (502) to Hotwell (501).
-
Weld all connections.
Figure 11.2 - Level pipes
11.3. Aircooler drain (106)
According Figure 11.3, [4], [5], [6], and [8]:
-
Clean internal of pipes before connecting
-
Fit and weld connecting drain pipes (106) to shell
Figure 11.3 - Aircooler drain
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11.4. Remaining components and small parts
According Figure 11.4, [1], [2], [4], [5], [6], and [8]:
-
Install riddles DN250 (109) incl. gaskets (110), See [4], into nozzles J1 and J2 of [1] and [2]
-
Install riddles DN100 (111) incl. gaskets (112), See [4], into nozzles K1 to K4 of [1] and [2]
-
Install riddles DN50 (125) incl. gaskets (126), See [4], into nozzles L11 to L14 of [1] and [2]
-
Fit and weld:
o
All valves delivered for the condenser
o
All instruments delivered for the condenser
o
All thermowells delivered for the condenser.
o
All remaining connections according [1] and [2]
Figure 11.4 - Riddle Installation - Typical
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12.
FINAL TASKS
12.1. Installation of spray nozzles in the Make-up water line and Flashbox
ATTENTION: The spray nozzles shall be installed only after the pipe lines have
been flushed
According Figure 12.1,Figure 12.2, [1], [2], [4], [5], [6], [7] and [8]:
-
Install spray nozzles (628, 629, 630) on the make-up water line (E1, E5, E6
of [1] and [2]) and secure it by tack welding. (Materials: boss & spray nozzle: stainless steel), see
Figure 12.1.
-
Install spray nozzle (908) in the Condensate injection pipe of the flashbox (E7 of [1] and [2]) and
secure it by tack welding. (Materials: boss & spray nozzle: stainless steel), see Figure 12.2.
-
Type of spray nozzle for:
- Make-up water line E1 (628): 490.964.1Y.AK Thread 3/4” BSPP
- Make-up water line E5 (629): 491.044.1Y.AM Thread 1” BSPP
- Make-up water line E6 (630): 491.044.1Y.AM Thread 1” BSPP
- Condensate injection line E7 (908) 491.086.1Y.AM Thread 1” BSPP
Figure 12.1 - Make-up water spray nozzles
Figure 12.2 - Flashbox Spray nozzle
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12.2. Connections for Condenser Earthing
According Figure 12.3, [1] and [2]:
-
Condenser is equipped with two times two (2) holes (Z1 & Z2) Ø 11mm in the support under the
condenser module.
Figure 12.3 - Earthing Connection -Typical
12.3. Internal inspection of water boxes
-
Visual inspection of the rubber lining
(If doubtful findings during visual inspection have been observed, corresponding surface
shall be checked by Holiday detector (with high voltage direct current).
Procedure: 3000 V/mm rubber lining thickness = 12’000 (12kV) for the specified nominal rubber
lining thickness of 4 mm
ATTENTION: This inspection shall be performed before any contact between
water and waterbox internal surfaces
-
Remove all protective material from inside the waterboxes
-
Close all manhole covers
Figure 12.4 - Mandatory Sign
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12.4. Corrosion protection
According [8], [9] and [11]:
-
Apply base and intermediate coat on all non-treated surfaces, outside.
-
After top coat is applied, mandatory sign shall be affixed between manhole and handle. See
also Figure 12.4
12.5. Cleaning
In general, internal and external parts of Condenser shall be cleaned from all impurities, such as
foreign particles, oil and grease, weld spatter, dust, grinding dust, moisture.
According [8] and [9]:
-
Remove protective cover sheets from the tube bundle. (only after erection of the condenser)
-
Remove all temporarily attached erection material inside/outside. (only after erection of the
condenser)
-
Clean the condenser inside/outside, water & steam side
-
Close all manhole covers
Additionally, the following parts shall be ensured clean and free of any impurities before sealing the
equipment:
-
All weld seams and Condenser interfaces (e.g. top surface of lower module, bottom surface of
upper module)
-
The supports before laying the Condenser.
-
The riddles shall be free of debris.
-
The wire mesh inside the Hotwell (further cleaning might be necessary).
-
Internal parts of the equipment shall be cleaned up from dirt and dust by means of blown air and
vacuum-cleaned if necessary.
-
Internal parts of the equipment shall be ensured free from nuts, bolts, tools, etc.
-
Special care shall be ensured for all tapping points for measurements (e.g. level measurements for
the hotwell, conductivity measurements connection, ect): shall be properly cleaned (e.g. shall not
be clogged) prior operation to avoid misreading of data during commissioning and operation.
12.6. Acceptance of condenser
After completion of work and general check the condenser should be accepted by the orderer
and the erection company released from their obligations.
-
Complete drawings to the ″Record issue″ status.
-
Carry out the general check together with the responsible contractor (orderer).
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-
Clear and clean the complete working area around the condenser.
-
Complete I & T-Plans and the test records required.
-
Deliver the necessary documents as raised to GE POWER.
Figure 12.5 - Condenser
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GE POWER
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13.
BEFORE OPERATION – FINAL TASKS
13.1. Installation of blanking plates on the Performance Pressure measurement connections
(P1 to P6)
All the pressure measurement connections for performance test have been
supplied blanked at site with a set of spares blanking plates (Item 631).
In case these connections are needed during commissioning, the blanking shall
be removed and SHALL be reinstalled according [4], [7] and [8] prior operation
(see .Figure 13.1)
Figure 13.1 - Blanking of Performance pressure connection P1 to P6
13.2. Cleanliness of the Condenser after Erection
After completion of erection and before handover to the Commissioning team; the
Condenser SHALL be cleaned according to the Chapter 12.5
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