9.8. Certificate of Lifting Equipments using for APH erection
9.8. Certificate of Lifting Equipments using for APH erection
1. PURPOSE
2. GENERAL
3. RESPONSIBILITY
3.1 Site Manager
Site Manager has the responsibilities for the application of this procedure and detail technical aspects which is defined in this procedure.
3.2 Construction Manager
Construction Manager is responsible for the execution of construction activities.
3.3 QA/QC Manager
1) Verify the application of this procedure.
2) With necessary tests and inspection.
3) Verify the specification of supplied material to confirm if the delivered material is correct.
4. REFERENCES
4.1 Issued For Construction Drawings
4.2 Approved Contract Quality Plan
4.3 Project EHSS Management Plan
4.4 Painting Procedure (VT4-YR01-P0ZEN-070001)
4.5 American Institute of Steel Construction (AISC)
4.6 American Society for Testing and Materials (ASTM)
4.7 American Welding Society (AWS)
4.8 American National Standards Institute (ANSI)
5. MATERIAL HANDLING
5.1 Receiving and Storage of Material
5.1.1 Upon delivery of the material, construction engineer shall inspect if there is any discrepancy with packing list and damage during the transportation. The result shall be reported immediately to the supervisor.
5.1.2 Materials should be segregated and stored at storage yard for easy handling as per erection sequence.
5.1.3 Generally, take appropriate measures such as the use of sheet covers and sleepers against rust, strain, deformation and damage during storage of materials.
5.1.4 Handling of materials and equipment shall be performed carefully so as not to damage or loss them.
5.1.5 All temporary materials, equipment, and jigs to be used for installation work shall be carefully checked and adjusted before using them.
5.2 Handling of Sections
As the paint film is relatively fragile, it is absolutely necessary to check the points below when sections are handled:
5.2.1 Prevent lifting devices from friction against structural elements
5.2.2 Prevent friction of structural elements together
5.2.3 Preserve structural elements against shocks of any kind
5.2.4 Avoid trailing structural elements
The above recommendations must permit limiting accidental damaging of the paint film.
If necessary, paint touching up shall be carried out according to general specification for
Painting.
5.3 Stability of very high devices and of structural elements
5.3.1 Stability of very high devices shall be ensured at all times and, in particular, out of erection hours (night, weekends)
5.3.2 The erector shall ensure the stability of the Air Preheater whenever the progress of the erection work does not permit getting stability from the structural elements bound together.
6. WORK PROCEDURE
6.1 Process Flow Chart
6.2 Setting up Center Line & Level of Base Plate
6.2.1 Beginning mark center line of base plate at grid line Q..
6.2.2 After marking center line the level of base plate will be checked and ensure make same level by shim plate.
6.2.3 The tolerance of level will be confirmed as ITP
6.3.1 Assembly of Thrust Bearing
6.5.1 Assembly of APH Support (sliding support)
6.10.1 Arrangement of the thrust bearing pivot: if case they are loose part, they will be assembly at a ground with temporary support see blow Fig.
6.10.2 Arrangement of the rotor core and pivots
6.10.3 Assembly of the hydraulic cylinder for rotor lifting device.
6.10.4 Arrangement of the rotor core
6.11.1 Erection of APH casing support segment
6.11.2 Mounting of APH casing middle-part
6.13.1 Lifting of casing top main part. (Reference lifting plan).
6.14.1 Installation of guide bearing
6.14.2 Installation of shaft seal top
6.14.3 Adjustment of support bearing and guide bearing
6.15 Arrangement of the Rotor Segment.
6.15.1 Alignment of rotor closed segment
6.15.2 Arrangement of the opened segment
6.15.3 Arrangement of the rotor completed
6.16 Lifting of casing top
6.16.1 Lifting of casing top side part( reference lifting plan)
6.16.2 Installation of casing top completed.
6.17 Installation of the pin rack
6.18 Installation of the drive-unit
6.19 Installation of the seal gap adjusting devices, top and bottom
6.20 Installation of heating elements
6.21 Installation of the soot blower bottom
6.22 Installation of water washing device
6.23 Installation of the fire extinguishing device
6.24 Installation of the machining device and rotor machining
6.25 Installation of the expansion sleeve
6.26 Installation Lube oil Circulation, Lube oil Pipe & Oil Flushing
6.26.1 Lube Oil Circulation Installation
Install the Lube Oil Circulation System Horizontally, giving carefully consideration to proper installation position and the method of keeping the connection duct warm.
Thoroughly clean the piping before installing it in the field.
Apply Oil Flushing prior to trial run.
6.26.2 Oil Pipe Assembly for Guide Bearing Circulation System
Assembly Oil Pipe follows Drawing of Guide Bearing Circulation. After Welding done Cleaning inside pipe by Air cleaning.
6.26.3 Oil Flushing for Guide Bearing Circulation System
Oil Flushing Procedure refer VT4-DD09-P0ZEN-040364 MS for U1 & U2 Air Preheater Oil Flushing (Rev. A)
7. JSA (Job Safety Analysis)
8. RISK ASSESSMENT
8.6 Heavy Equipment Load Test for Safety
All of the heavy equipments should be inspection and load test by Doosan EHS department according to the current regulation of Viet Nam (TCVN 4244; 2005).
9. ATTACHMENTS
9.1 Arrangement Drawing
9.2 Equipment & Tool List
9.3 Scaffolding Work Plan
9.4 Organization Chart
9.5 Manpower Mobilization Plan
9.6 Erection Schedule for Air Preheater
9.7 WPS for Air Preheater (WPS No WT – G1Y – 1010 – 015)
9.8 Certificate of Lifting Equipments using for APH erection
9.1 Arrangement Drawing