INSPECTION GUIDELINES
WATER TURBINE
SGS Ref No.Rev.PageDate::::2001 of 819/03/04
INSPECTION GUIDELINES
WATER TURBINE
0Rev.
For ApprovalDescription
19/03/2004Date
J. C. BrottonPrepared
B. TremainChecked
B. TremainApproved
June 2004Date
INSPECTION GUIDELINES
WATER TURBINE
SGS Ref No.Rev.PageDate::::2002 of 819/03/04
CONTENTS
12345678
PURPOSESCOPEPROCEDUREDOCUMENTS
INSPECTION PROCESSSHIPPING
WATER TURBINE DATA DOSSIERINSPECTION CHECK LIST
INSPECTION GUIDELINES
WATER TURBINE
SGS Ref No.Rev.PageDate::::2003 of 819/03/04
1.0 PURPOSE
This instruction covers the inspection, test and verification activities required to validate thesupply, manufacture and test of a Water Turbine for general use.
2.0 SCOPE
This instruction covers all necessary stages in the production of a Water Turbine from theexamination of certification from procurement sources to the final inspection, preservation andpacking to despatch to site.
Although the methodology in compiling this instruction is to systematically progress through theconstruction of a typical Water Turbine. Experienced, inspectors may interpret the intent of theinstruction to accommodate local or novel practices or to utilise the instruction for a one-off, oralternative design of Turbine. The design having been approved by the client. Any suchvariations should be noted on the inspector's report.
3.0 PROCEDURE
3.1
GENERAL
This instruction together with the associated check sheet may be used on any contract or order.It is intended to act as a guide to the inspector in the course of the inspection programme. Anypart of the document may be invoked and the sections to be used and the level of inspectionrequired will be as specified on the check list.
All tests and inspections will be carried out against the approved drawings, purchase orderspecifications, purchasers or company standards, and within the practices and rules of thecountry, state or province and any government decrees, laws, ordinance or regulation as mayapply.
If any conflict or contradictions should be apparent in any of the above then the more onerousrequirement will apply unless the purchaser or client directs otherwise in writing.3.2
REFERENCE DOCUMENTS
Applicable codes and specifications.
? ? ? ? ?
Design code (to be stated on inspection report)Purchase order specificationPurchaser's standardsApproved drawings
SGS company standards
Applicable codes and standards (sample only)
?
JIS B8103
4.0 DOCUMENTS TO BE RECEIVED/AVAILABLE AT INSPECTION
Purchase Order or ContractInspection and Test PlanData sheet
Sub-assembly drawingsMaterial test certificates
Weld procedures and Procedure Qualification RecordsList of qualified welders or welding operators
INSPECTION GUIDELINES
WATER TURBINE
SGS Ref No.Rev.PageDate::::2004 of 819/03/04
Welders' qualifications
Calibration of measuring and test equipment
NDE procedures, (appropriate to material of construction)List of qualified NDE operators/inspectorsNDE /inspectors' qualificationsHydrostatic testing procedurePerformance test procedure
Preparation and painting procedure
Preservation, packing and shipping procedureSupply list (packing list)
5.0 INSPECTION PROCESS
5.1 MATERIAL5.1.1
REVIEW OF CERTIFICATION
Original or authenticated copies of certificates should be available at the manufacturer's
premises. These should be examined for compliance with specifications and where appropriate,drawings:
The review will include checks on:-
? ? ? ? ? ? ? ? ? ?
Manufacturer's name and locationCertificate No
Material SpecificationHeat or cast No
Makers No or Plate NoChemical compositionMechanical propertiesHeat treated conditionNDE applied and resultsSurface finish
5.1.2 VISUAL AND DIMENSIONAL VERIFICATION
Material identification on certificates against product markings.
Material supplied against drawing, material list and specification as appropriate.Visual and dimensional compliance with specification.5.1.3 ADDITIONAL/SPECIAL REQUIREMENTS
May apply on special components. Check to ensure specification contract requirements havebeen met. Witness NDE examinations as necessary.5.1.4 REPORTING
Reporting on the material checks should include:
? ? ? ?
Conformation of satisfactory document review
Record of endorsement of certification reviewed/witnessedRecord of all non-conformities
Record of any tests witnessed and the result
INSPECTION GUIDELINES
WATER TURBINE
SGS Ref No.Rev.PageDate::::2005 of 819/03/04
5.2WATER TURBINE MANUFACTURE
After clearance of the above points to the satisfaction of the inspector, the fabricator will proceedwith the manufacture of the sub assemblies and components for the Water Turbine.5.2.1
FABRICATION INSPECTION
Following the completion of welding and machining operations the Turbine parts will beinspected as required by the specification or contract. The inspection will consist of:
? ? ? ? ? ? ? ? ?
5.2.2
Visual inspection for damage
Dimensional check to drawing requirementInspection of parts, for cleanliness
Visual examination of welded on connectionsReview of welder qualificationsReview of weld procedure recordConfirmation of satisfactory NDE
Proper documentation of the materials used
Examination/inspection of integral parts such as reduction gears
HYDROSTATIC TESTS
The turbine casing and other pressure containing parts will be hydrostatically tested.
The inspector must verify that the correct test pressure has been applied to the relevant partsdepending on specification requirements.5.2.3
CLEARANCE CHECKS
After completion of fabrication the required clearances will be checked in accordance with thespecification requirement in particular the areas to be examined are:
? ?
5.2.4
Radial clearance between rotor and casing
Axial clearance between the rotor blades and stationary parts
MECHANICAL RUNNING TEST
Many turbines are subjected to a mechanical running test. Where required by the contract orpurchase order the following items will be checked:
? ? ? ?
5.2.5
Critical speed
Bearing temperaturesVibration Noise test
FINAL VISUAL EXAMINATION
After completion of all testing a visual examination including a partial strip down of the unit isusually required by the specification. The particular areas of interest are:
? ? ? ?
Surface roughnessVane profiles
Internal cleanliness
Location/orientation of terminal flanges
相关推荐：
loading