BOILERS & FURNACES

Maverick has provided Remote Video Inspections for a huge variety of boilers and furnaces. We have used pan/tilt/zoom robotic systems, push-style pipe cameras, small diameter video scopes and borescopes, and even prototype high-temperature camera equipment. We have used many different access points for inserting RVI tools including valve openings, removed blind flanges, thermo-welds, viewing glass ports, removed piping and man-ways.

Photo Gallery

$This is an image of an area near the burner section of the furnace. The refractory bricks and refractory coating appear to be intact with no visual loss of material. A robotic video crawler was used to drive down the heater line to record general conditions.$

Furnace Heat Transfer Line

This is an image of an area near the burner section of the furnace. The refractory bricks and refractory coating appear to be intact with no visual loss of material. A robotic video crawler was used to drive down the heater line to record general conditions.

Waste Gas Boiler - Burner Tips

An air-cooled video camera was inserted through the glass viewing port to provide close-ups of the burner tips for potential carbon build up. This inspection was performed while the boiler was at maximum operation .

Fire Tube - Internal Pitting

This image shows significant pitting that was noted throughout the length of the tube up to the U-bend. A pan, tilt & zoom (PTZ) camera was deployed in the removed tube to record the internal condition.

Furnace Boiler Tube / Indications

This 3" boiler tube showed signs of significant erosion and corrosion, likely from sand in the boiler feed water system. The captured video helped engineers and integrity specialists make decisions regarding tube replacement.

Reboiler Tube Section

A video inspection of the exterior of these reboiler tubes was performed to determine whether acid cleaning was required. During the inspection, it was noted that the outer shroud of the reboiler shell appeared to have a slight deflection.

FIre Heater Burner Section

This image is from a high-temperature video camera with an air cooling system. It captured the result of maximum gas output at the burner section and flame impingement on the heater coils.

Boiler Tube Surface Wear

The inspection access point on this horizontal boiler tube was an inspection port welded on the 180 degree return bend. The image shows the result of years of scheduled maintenance pigging. The welds at the return bends appear to have surface wear indications and metal loss.

Boiler Fire Box

An air-cooled camera captured this image of the boiler tubes near the burner section. The inspection was undertaken to observe whether any fuel or steam leaks could be detected while the boiler was in operation. Soot build-up is noticeable in the inside corner of the tube walls.

Boiler Tube Bulged

A small video scope was used to capture this bulged area of a boiler tube. The effect of flame impingement on the feed-water in the tubes was determined to be the cause of this defect.

Video Gallery

D-STYLE BOILER EXTERIOR TUBES

This video was captured to examine the water tube ligaments at the steam drum exterior shell. The client was interested in signs of bulging and/or discolouration. To access the top area of the boiler, entry was required from the gas fire side of the boiler. Saturated scale with flash rusting was noted towards the burner tip end of the boiler.

SCALE IN BOILER PIPING

This video shows both the upper and lower sections of the heater piping with large amounts of scale. The inspection was performed after high pressure cleaning using a pan and tilt video camera mounted on a push system cable.

BLAST FURNACE REFRACTORY

This video shows a steel mill blast furnace's down comer piping leading to the dust collector pot. The inspection was carried out to determine the condition of the internal refractory. The piping in this area was five feet in diameter. A robotic pan and tilt camera was used for this type of inspection, since manned entry into this piping raised significant safety issues.

STEAM HEADER INSPECTION

A video pan and tilt camera was used to inspect the steam header shell side and nozzle openings for any scale build up.

Safety, Diligence & Innovation

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