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Anhui Weite Instrument Cable Co., Ltd. has been focusing on R & D and production of thermocouple instrument cable for 15 years, which is trustworthy

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Pt Rh thermocouple solves the partial oxidation device of probe in high temperature and high pressure environment

written words: [big] [middle] [small] QR code of mobile phone page 2019/8/22     Number of visits:     
Question:
A major chemical manufacturer is experiencing repeated product failures with his existing probes.
The key problem causing the failure is the high pressure environment and the high temperature of the vessel containing the partial oxidation of natural gas to carbon monoxide (POX).
Temperature must be measured in a highly reactive gaseous atmosphere to control the process and keep the plant safe. The probe must last for a two-year factory rebuild cycle. The possibility of probe rupture due to furnace insulation movement must be considered. Customers need to provide complete documentation of materials, process control, testing and safety.

Pt Rh thermocouple solves the partial oxidation device of probe in high temperature and high pressure environment

Our plan
By cooperating with customers to design platinum rhodium thermocouple, it can withstand pressure even if ceramic parts fail.
The design includes a thick walled recystalised alumina main sheath welded to a forged flange with Inconel alloy 600 bracket. Qualified (ASME IX) welders are used. Platinum rhodium thermocouple conductors pass through a porous coaxial pressure gland to provide a seal at temperature. Each probe is double pressure tested. The first pressure test was carried out on a metal work piece with a hydraulic oil of 106 bar and the second test was carried out with mixed air in the final assembly of 40 bar. We provide a complete set of documentation for each probe delivery.

A set of seven probes is installed to allow the plant to run for two years, when the whole equipment is always replaced.

Results
Platinum rhodium thermocouple can meet the given specifications, customers are satisfied with the goods we provide. Over the years, this contract has been repeated many times, once again increasing our history of success and our ability to please our customers.

 
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