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CORE SERVICE OFFERINGS

Storage Tanks & Static Equipment Inspection

weld inspection, ndt services, india
automated crawler, tofd, paut, phased array

TECHNICAL CAPABILITIES

Robotic Inspection Of Tanks

This technique uses an automatic robotic crawler to enter into the tank for collecting data such as thickness, ultrasonic soundness etc. The process allows visual inspection by a video camera while the tank is in service. The robotic crawler systematically scans the tank bottom with an array of eight ultrasonic transducers and relays high volume of UT data for analysis. The in-tank service follows a digital inspection grid and collects more than 200,000 UT scans (based on the average scan pattern in a 100 ft. dia. Tank) for computer analysis. The robot pushes sludge aside as it travels, making cleaning and waste disposal unnecessary in many cases. One of the salient features of this technique is the elimination of the high cost of taking down your tanks. The testing can be completed as per API 653 inspection in days instead of weeks or months. It reduces environmental hazards and is a safe process due to minimum contact with the tank. 

One of the salient features of this technique is the elimination of the high cost of taking down your tanks. The testing can be completed as per API 653 inspection in a few days as opposed to weeks or months.  It reduces environmental hazards and is a safe process due to minimum contact with the tank. 

Helium Leak Testing

The Helium Leak Testing unit at TCR utilizes a proven mechanical vacuum pump technology designed specifically for heavy usage under harsh industrial environments. The helium stability of the rotary vane pump guarantees excellent stability of the helium signal. The low rotational speed of the M.D.P. (Molecular Drag Pump) at 27,000 RPM keeps this unit completely insulated against accidental air inrushes. Further, it allows the leak detector to be moved while in operation. The high compression ratio of the M.D.P. facilitates the gross leak test at a high pressure (7.5 Torr / 10mbar) which speeds up the leak test process of outgassing parts. The internal layout of the unit allows easy access to all the components. TCR’s Helium Leak Testing instrument has a roughing capacity of 10 m³/h (7 CFM) with usable helium sensitivity in the 10-11 atm.cc/s range. The unit has a dedicated sniffing unit, based on a well-proven leak-testing concept and is available for outboard leak testing applications as well.
 
TCR's services include vacuum leak testing for any type of vacuum vessel as well as system and pressure probe testing for systems that normally operate at or above ambient pressure. Virtually any system that has a requirement for leak tightness or that is suspected of causing a problem due to leakage can be tested by one of these methods of helium leak testing with a high degree of reliability.
 
Additionally, the unit offers evolved features to assist the operator with daily test operation:

TCR has performed several leak tests on-site for industries that include nuclear carriers, polymer plants, oil refineries, gas and steam turbine power plants in Kuwait, Kingdom of Saudi Arabia and India. TCR's technicians are highly mobile and perform helium leak testing on heat exchangers, steam turbines and condensers, distillation towers, buried pipelines and many other systems and components.

  • Auto-calibration, with built-in temperature compensated calibrated leak (dedicated to the sniffing mode) 

  • Automatic signal correction 

  • Vocal synthesizer

  • Helium background suppression with "floating" zero to keep the signal from going negative and to increase sensitivity

  • Audio alarm with variable pitch (up to 90 dBA) 

This technique uses an automatic robotic crawler to enter into the tank for collecting data such as thickness, ultrasonic soundness etc. The process allows visual inspection by a video camera while the tank is in service. The robotic crawler systematically scans the tank bottom with an array of eight ultrasonic transducers and relays high volume of UT data for analysis. The in-tank service follows a digital inspection grid and collects more than 200,000 UT scans (based on the average scan pattern in a 100 ft. dia. Tank) for computer analysis. The robot pushes sludge aside as it travels, making cleaning and waste disposal unnecessary in many cases. One of the salient features of this technique is the elimination of the high cost of taking down your tanks. The testing can be completed as per API 653 inspection in days instead of weeks or months. It reduces environmental hazards and is a safe process due to minimum contact with the tank. 

Helium Leak Testing
Robotic Inspection of Tanks
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