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Express control without metal dressing in order to detect zones of
potential damages on all boiler units prior to starting the repairs.
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Detecting of jamming sites on heating surface pipes in fitting units and in
areas of pipes passing through setting and insulation. Selecting of optimum
option of pipes attachment.
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Assessment of supports and suspension brackets condition on ceiling pipes
and manifolds.
-
Express quality control of pipes repair and angular joints with
manifolds.
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Detecting of contact factory joints locations on boiler waterwall
tubes.
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Determining the most representative pipe samples for metal state assessment
and internal deposits analysis.
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Early diagnostics of pipes damages (corrosion pits and metal overheating
zones detection).
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Assessment of flaws repair backing welds condition.
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Temperature stratifications detection along the furnace perimeter and
boiler gas flue.
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Drum inspection without separation equipment removal.
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Stressed-strained state inspection of the frame and all boiler supporting
columns.
-
Attemperator jackets and injectors condition inspection without their
opening.
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Early diagnostics of blades, disks and shafts fatigue damages.
-
Serving wire state assessment. Detection of the wire damaging potential
sites.
-
Express control of tension band and rivets in order to detect jams and
potential damaging sites.
-
Assessment of final-stage blades compactness. Determining rivets condition
on the disk rim in order to detect the rivets requiring replacement.
-
Detecting of blades operating in conditions close to resonant
oscillations.
-
Joint sleeves and key connections condition assessment. Determination of
the necessity for templet bolts replacement.
-
Revealing of reasons and detecting jamming sites on pipelines and turbine
units causing thermal expansions constraint.
-
Revealing of reasons for operation misalignment on couplings.
-
Detecting local zones of metal residual strain on the shaft. This is
especially critical for turbines with residual shaft deflection. According to
the experience, rotor correction after deflection using heating up to 700°С
does not remove local zones of metal plastic strain. Therefore these zones
need to be detected and timely removed by removing of a thin metal layer
during the turbine repairs.
-
Quality control of blades deposits, various types of sprayed coatings on
shafts, valves and other units.
-
Timely detection of fatigue damaging areas on control valve rods.
-
Early diagnostics of babbit chips on bearing inserts.
-
Turbine flushing holes condition inspection without grinding or any other
surface preparation.
-
Express sorting of new and used studs, channels, bearing inserts and other
turbine parts by their susceptibility to damaging.
-
Generator retaining rings state inspection without their removal.
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Inspection of tightening level distribution in bolted joints. Detection of
bolts and nuts susceptible to damaging.
-
Oil lines inspection at turbine operation or repairs for early diagnostics
of jamming and damaging sites.