Instrumentation

1. Introduction The reduction of sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) in industrial flue gas is essential for mitigating environmental pollution and complying with air quality standards. The primary technologies employed for these purposes are Flue Gas Desulfurization (FGD) and Denitrification. In this article, we will explore the main desulfurization and denitrification techniques, their […]

Combustible gas detectors typically utilize catalytic combustion, infrared absorption, or thermal conductivity sensors. Due to continuous exposure to environmental factors and operational usage, sensor sensitivity may gradually decrease or become damaged over time, necessitating regular calibration to maintain accuracy and reliability. Calibration of combustible gas detectors generally involves two main processes: zero-point calibration and span

The Graphene Powder Revolution—and Its Hidden Measurement Challenge Graphene powder, composed of single-layer carbon atoms arranged in a hexagonal honeycomb structure, is transforming industries across the globe. Its exceptional strength, conductivity, and flexibility make it a vital material in everything from advanced electronics to energy storage and high-performance composites. However, the handling of graphene powder

In industrial settings where hazardous gases, vapors, or dust may be present—commonly referred to as hazardous areas or explosion-proof zones—electrical and instrumentation installations must strictly comply with safety regulations to prevent ignition sources. A common question arises during design and installation:Is the use of flexible conduit mandatory in explosion-proof areas? The answer is: It depends

Chemical instrumentation plays a crucial role in industrial automation, especially in chemical plants, where precise measurement and control are essential for safety and efficiency. The tools and equipment used for installation, calibration, maintenance, and repair of chemical instruments can be divided into general-purpose tools, specialized tools, measurement devices, and auxiliary equipment. This article details these

When Carbide Dust Meets Acetylene Gas: Risks and Protective Measures In the chemical industry, carbide dust and acetylene gas play crucial roles in various production and manufacturing processes. However, their inherent explosiveness, flammability, and corrosiveness pose significant risks, requiring stringent safety measures and careful handling practices. Ensuring workplace safety, equipment reliability, and environmental protection represents

Chapter 1: General Provisions 1. Purpose This policy aims to ensure the safety of personnel and equipment by preventing accidental exposure to hazardous energy during maintenance, servicing, or other activities. Implementing strict energy isolation procedures reduces the risk of injuries, fatalities, and property damage. 2. Scope This policy applies to all personnel, equipment, and systems

A Coil Spring Limit Switch is a mechanical safety device widely used in industrial equipment to control movement and prevent machinery from exceeding its predefined operational limits. This innovative device integrates the mechanical properties of springs with electrical signals from coils, playing a crucial role in maintaining safety, precision, and reliability within mechanical systems. Working

Instrument wiring and commissioning is critical in industrial automation, laboratories, or engineering applications. This document provides detailed guidelines and best practices to ensure accuracy, reliability, and safety in wiring and commissioning temperature, pressure, flow, and level instruments. 1. Instrument Wiring Essentials Temperature Instruments Thermocouples: Clearly distinguish polarity (typically red for positive). Ensure compensation cables match

The representation of pH has long intrigued learners of chemistry. While the scientific community universally accepts this notation, the reasoning behind the lowercase “p” and uppercase “H” is often misunderstood. Let’s explore this topic in depth, starting with the basics of pH, its origins, and why this specific notation is used. 1. What is pH?