Analyzer Pretreatment System

The analyzer pretreatment system is a crucial component in industrial process analysis. It is primarily used for sample pretreatment to prevent analytical instruments from being damaged by high temperatures, high pressures, corrosive substances, and other harmful factors. By ensuring that the samples entering the analyzer meet requirements for measurement temperature, pressure, cleanliness, and more, the system protects the analyzer while enhancing measurement accuracy and enabling stable operation.

Based on customers' actual needs, Guruida provides a variety of customized pretreatment systems and integration services. These solutions can significantly improve the data reliability of analyzers and extend their service life, making them indispensable especially in complex industrial environments.

I. Functions of the Pretreatment System

Sample Purification

Removal of particulate matter (dust, impurities): Achieved via filters, cyclone separators, etc.

Removal of interfering components (e.g., moisture, oil): Accomplished using condensers, desiccants, gas-liquid separators, etc.

Condition Adjustment

Temperature regulation (cooling of high-temperature samples or heating of low-temperature samples).

Pressure stabilization (via pressure reducing valves or booster pumps).

Flow Control

Maintenance of a constant flow rate to ensure stable analyzer response.

Safety Protection

Prevention of corrosive, flammable, explosive, or toxic substances from directly entering the analyzer.

II. Main Components

Sampling Device

Sampling probes are directly inserted into specific positions in process pipelines to extract representative samples, avoiding interference from laminar/turbulent flow and wall adsorption effects.

Filtration Unit

Primary filtration (coarse filtration): Stainless steel sintered filter elements, ceramic filters.

Fine filtration (micron-level): Membrane filters, hydrophobic filter elements (for humid environments).

Condensation and Dehumidification Device

Gas-liquid separators or vortex condensers (to reduce dew point).

Permeation drying tubes (for moisture removal).

Pressure Regulation System

Pressure reducing valves (for high-pressure environments), suction pumps (for low-pressure environments), pressure stabilizing valves.

Flow Control Unit

Rotameters, mass flow controllers.

Sample Transfer Piping

Heat-traced piping (to prevent condensation), inert materials (e.g., PTFE, 316 stainless steel) (to prevent adsorption).

Waste Gas/Waste Liquid Treatment

Safe discharge or recovery devices (e.g., combustion towers, neutralization tanks).

III. Typical Application Scenarios

Petrochemical process gas analysis

High-purity gas detection in the semiconductor industry

Flue gas emission monitoring

Online water quality analysis