Instrumentation

1. Introduction In petrochemical plants, rotating machinery such as compressors and large process pumps play a vital role in stable and continuous production. These machines often operate under high temperature, high pressure, and hazardous conditions, demanding rigorous control and monitoring. Shaft instrumentation systems provide critical data on key parameters such as shaft vibration, axial displacement, […]

1. Introduction During cable installation, the minimum bending radius is a key quality control indicator. This article explains why bending radius matters, what it actually means, and what standards apply to different types of cables. 2. What Is Minimum Bending Radius? The minimum bending radius refers to the smallest radius a cable can be bent

Anyone who works with materials can’t avoid one key term — creep. Have you ever encountered this? A plastic part slowly deforms over time? A PTFE gasket that fit perfectly at installation ends up sagging after a few months? Is this because the material is just too “soft”?Or is there something deeper—perhaps molecular structure—that leads

Understanding the Root Causes and How to Prevent Them 1. Background: A Common Yet Costly Problem Many industrial users—especially in chemical plants—have reported frequent failures with corrosion-resistant probes from various brands. Despite switching suppliers, the coating on the sensor heads often peels off within a few months, leading to corrosion and sensor malfunction. Instrumentation in

Cable laying standards are essential to ensure the safety, stability, and longevity of cable systems in industrial and infrastructure projects. This guide outlines key procedures and technical considerations, covering pre-installation checks, installation in various environments, cable fixing and spacing, joint and terminal production, and safety precautions. 1. Pre-Installation Preparation 1.1 Cable Inspection Visual Check: Ensure

Cable tray installation must comply with specific technical standards to ensure electrical safety, system reliability, and long-term maintainability. This document outlines the key requirements for cable tray layout, installation, and fireproofing in industrial and commercial environments. 1. Route Planning and Layout Principles Coordinate with Building Structure: Cable tray routing should align with architectural design, avoiding

Chemical plants are often regarded as highly automated systems. This is not just a fact; it is a necessity driven by the inherent complexity and uncertainty of chemical processes. The process control systems in these plants rely heavily on feedback mechanisms, particularly the Proportional-Integral-Derivative (PID) control loop, which plays a central role in managing plant

1. Major Instrumentation Hazards That Can Lead to Safety Violations According to national standards and petrochemical safety protocols, the following are frequently cited as major safety hazards: Lack of gas detectors (flammable/toxic) at key emission sources. Incorrect selection of gas detectors—wrong gas type or specification. Gas detectors installed but not functioning: power failure, alarm suppression,

01 Main Content of Chemical Process Flow Design The design of the chemical process flow is completed through various stages, including the Process Block Diagram (PBD), simplified Process Flow Sketch (PFS), and Process Flow Diagram (PFD). Process simulation calculations, along with material and energy balances, are performed to ensure accurate process design and efficiency. Equipment

AI calibration and anti-drift technologies—powered by data modeling, dynamic compensation, and intelligent learning—break the traditional trade-off between precision and long-term stability. This article explores how these innovations enable instruments to achieve both high accuracy (“precision”) and consistent performance (“stability”) across five key dimensions: core principles, technical pathways, and real-world applications. I. The Traditional Dilemma: Why