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Panshi Case Database Case Sharing | Distillation Unit Top-End Corrosion Loop – Online Corrosion Monitoring, Risk Early Warning, and Hidden Danger Identification

Panshi Case Database Case Sharing | Distillation Unit Top-End Corrosion Loop – Online Corrosion Monitoring, Risk Early Warning, and Hidden Danger Identification

In April 2022, the corrosion rate of the inductance probe on the top-of‑tower atmospheric leg pipeline at a certain plant exceeded the standard, reaching as high as 0.88 mm/year. Pulse eddy current inspection with thermal insulation removed revealed a suspected thinning signal at the elbow located after the outlet header of the shell side of the top-of‑tower condenser. The pipeline has specifications of DN200 × 6.5 mm; the thinned area is situated slightly to the left of the elbow’s centerline. The minimum wall thickness within the inspected thinning zone was 5.1 mm, and the eddy current inspection indicated a thinning rate of 20.2%. In accordance with the Implementation Guidelines for Pulse Eddy Current Inspection of Refining Units, the workshop was advised to remove the thermal insulation for re‑inspection.

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2025

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Wei’er Corrosion Classroom | Measurement Principle of the ZK8810 Online Electrochemical Probe – The Linear Polarization Principle

Wei’er Corrosion Classroom | Measurement Principle of the ZK8810 Online Electrochemical Probe – The Linear Polarization Principle

Weir Corrosion Classroom | Measurement Principle of the ZK8810 Online Electrochemical Probe – The Linear Polarization Principle

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2025

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Weir Corrosion Classroom | Corrosion Case Series: Corrosion in Pipelines Transporting Carbon Dioxide‑Containing Media

Weir Corrosion Classroom | Corrosion Case Series: Corrosion in Pipelines Transporting Carbon Dioxide‑Containing Media

Weir Corrosion Classroom | Corrosion Case Series: Corrosion in Pipelines Transporting Carbon Dioxide‑Containing Media

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2025

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Zhongke Weier Conducts 2025 Safety Training to Continuously Strengthen the Defense Against Production Accidents

Zhongke Weier Conducts 2025 Safety Training to Continuously Strengthen the Defense Against Production Accidents

To thoroughly implement the thematic requirements of National Work Safety Month and continuously strengthen enterprise safety production management, Zhongke Weier recently organized a company-wide safety training program for 2025. As one of the company’s key annual safety initiatives, this training once again underscores our unwavering commitment to prioritizing work safety. The session was led by Wang Jian, a nationally registered safety engineer and first‑level registered fire protection engineer, who also serves as the Manager of the Company’s Safety Supervision Department. Through systematic and ongoing safety education, we are comprehensively enhancing employees’ safety awareness and their ability to respond effectively in emergency situations.

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2025

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07

Good News | Zhongke Weier Honored as the “Annual Inspection and Maintenance Outstanding Contractor” by Zhenhai Refining & Chemical!

Good News | Zhongke Weier Honored as the “Annual Inspection and Maintenance Outstanding Contractor” by Zhenhai Refining & Chemical!

Recently, our company stood out in the 2024 Contractor Evaluation held by Zhenhai Refining & Chemical and was awarded the title of “Outstanding Maintenance and Repair Contractor of the Year.” This honor is an authoritative recognition of our company’s service department’s professional capabilities, service quality, and sense of responsibility throughout the year.

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2025

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06

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Address: 5th Floor, No. 1, Hunnan Fourth Road, Hunnan New District, Shenyang

Email: zkwell@zkwell.com.cn
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