Xiangyi TDL5Y Crude Oil Water Content Determination Centrifuge

Overview

The Xiangyi TDL5Y Crude Oil Water Content Determination Centrifuge is a purpose-engineered benchtop low-speed centrifuge designed specifically for quantitative separation of water and sediment from crude oil samples in accordance with standardized test methods including GB/T 6533–1986 and ASTM D95. It operates on the principle of differential sedimentation under controlled centrifugal force, enabling reproducible phase separation of immiscible components—free water, emulsified water, and solid particulates—from hydrocarbon matrices. Unlike general-purpose centrifuges, the TDL5Y integrates thermal regulation, precision rotor dynamics, and application-specific safety protocols to meet the stringent operational requirements of upstream petroleum laboratories, refinery QC departments, and independent testing facilities engaged in crude assay compliance.

Key Features

• Horizontal swing-bucket rotor configuration optimized for 4 × 100 mL borosilicate glass centrifuge tubes—validated for structural integrity at full load and rated speed (4000 rpm, 2498 × g).
• Integrated ring-type heating element delivering uniform temperature distribution across the rotor chamber; programmable range supports ISO/IEC 17025-compliant thermal conditioning (typically 40–60 °C) to reduce oil viscosity and enhance water droplet coalescence.
• Brushless frequency-controlled motor providing smooth acceleration/deceleration profiles, extended service life (>20,000 h MTBF), and acoustic emission <62 dB(A) at 1 m distance—critical for continuous-shift operation in field labs.
• Microprocessor-based control system with intuitive touch-panel interface; enables real-time adjustment of speed (100–4000 rpm), time (1–99 min), temperature (ambient to 80 °C), and ramp rates during active runs.
• Comprehensive fault diagnostics: automatic detection and display of lid interlock failure, over-temperature events, rotor imbalance, overspeed conditions, and power anomalies—fully traceable via on-screen error codes per IEC 61000-4-30 EMC standards.
• LCD display showing simultaneous readouts of rotor ID, actual/preset RPM, RCF, elapsed time, chamber temperature, acceleration/deceleration rate, and active alarm status—supporting GLP documentation workflows.

Sample Compatibility & Compliance

The TDL5Y is validated for use with standard 100 mL cylindrical borosilicate glass centrifuge tubes conforming to ASTM D95 Annex A specifications. Its mechanical design and thermal management comply with national and international petroleum testing standards, including GB/T 6533–1986 (Determination of Water and Sediment in Crude Oil by Centrifuge Method), ASTM D95–22 (Standard Test Method for Water in Petroleum Products by Distillation), and ISO 3733:2020 (Petroleum products — Determination of water — Distillation method). The instrument’s construction adheres to CE machinery directive 2006/42/EC and electromagnetic compatibility requirements per EN 61326-1:2013. All firmware logic and parameter logging are structured to support audit-ready data integrity in GMP-aligned environments.

Software & Data Management

While the TDL5Y operates as a standalone instrument without external PC dependency, its embedded firmware maintains non-volatile memory for up to 100 user-defined protocols—including speed, temperature, duration, and ramp profiles—with timestamped execution logs. All parameter changes during runtime are recorded with millisecond resolution and stored alongside operator ID (via optional RFID badge integration). Export functionality supports USB flash drive transfer of CSV-formatted run records compliant with 21 CFR Part 11 requirements when paired with validated third-party LIMS interfaces. Audit trail generation includes event type, timestamp, user identifier, pre-change value, and post-change value—ensuring full traceability for regulatory inspections.

Applications

• Quantitative determination of total water content (free + emulsified) in crude oil prior to pipeline transport or storage per API RP 1172 guidelines.
• Sediment and water (S&W) analysis in custody transfer verification at loading terminals and receiving depots.
• Method validation studies supporting ASTM D4057 and ISO 3170 sampling protocols.
• Research-scale evaluation of demulsifier efficacy under controlled thermal-centrifugal stress conditions.
• QC screening of refined feedstocks for downstream distillation unit protection.
• Supporting ISO/IEC 17025 accreditation through documented method repeatability (RSD ≤ 2.1% for water recovery at 0.5–5.0 wt% range, n = 6).

FAQ

What standards does the TDL5Y comply with for crude oil water analysis?
It is engineered to meet GB/T 6533–1986 and functionally compatible with ASTM D95 and ISO 3733 methodologies.
Can the instrument maintain precise temperature control during prolonged runs?
Yes—the ring heater and PID-controlled thermal feedback loop hold setpoint within ±1.5 °C over 60-minute cycles at 50 °C.
Is rotor imbalance compensation built into the control algorithm?
The system performs dynamic imbalance detection during acceleration and will halt operation if vibration exceeds ISO 1940–1 G2.5 threshold.
Are replacement rotors and certified glass tubes available through authorized channels?
Xiangyi supplies OEM-matched horizontal rotors (part no. TDL5Y-HR4) and ASTM D95-certified 100 mL tubes (batch-tested for centrifugal burst resistance).
Does the device support remote monitoring or network connectivity?
No native Ethernet/Wi-Fi interface is included; however, RS-232 output allows integration with SCADA systems using Modbus RTU protocol (optional adapter required).