Xiangyi DL5Y Crude Oil Water Content Determination Centrifuge
| Brand | Xiangyi |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DL5Y |
| Instrument Type | Floor-standing Centrifuge |
| Speed Class | Low-speed Centrifuge (max. 4000 rpm) |
| Function | General-purpose Centrifuge |
| Configuration | Horizontal Rotor Centrifuge |
| Max Capacity | 4 × 200 mL |
| Max Speed | 4000 rpm |
| Max RCF | 2498 × g |
| Dimensions (L×W×H) | 610 × 720 × 1140 mm |
| Temperature Range | Ambient +10 °C to 70 °C |
| Timer Range | 1–99 min |
| Speed Accuracy | ±10 rpm |
| Noise Level | ≤65 dB(A) |
| Power Supply | AC 220 V ±22 V, 50 Hz, 10 A |
| Power Consumption | 800 W |
| Net Weight | 108 kg |
| Rotor Identification | LED-displayed |
| Safety Features | Auto-lock lid, imbalance detection, overspeed/overtemperature diagnostics |
| Heating System | Annular heater with uniform temperature distribution |
| Drive System | High-torque inverter motor |
| Rotor Compatibility | Standard horizontal bucket rotors for glass centrifuge tubes (200 mL) |
Overview
The Xiangyi DL5Y Crude Oil Water Content Determination Centrifuge is a purpose-built floor-standing instrument engineered specifically for quantitative determination of water and sediment content in crude oil samples, in strict accordance with the methodology defined in GB/T 6533–1986 (equivalent to ASTM D96 and ISO 3735). It operates on the principle of high-efficiency sedimentation separation under controlled centrifugal force and regulated thermal conditions — critical for stabilizing emulsion breakdown kinetics during analysis. Unlike general-purpose low-speed centrifuges, the DL5Y integrates precise temperature control (ambient +10 °C to 70 °C), programmable acceleration/deceleration profiles, and real-time RCF monitoring to ensure reproducible phase separation across heterogeneous crude feedstocks. Its design prioritizes operational robustness in field laboratories, refinery QC environments, and upstream research facilities where compliance with petroleum testing standards is non-negotiable.
Key Features
- Microprocessor-controlled horizontal rotor system with full parameter programmability: speed (0–4000 rpm), time (1–99 min), temperature (ambient +10 °C to 70 °C), and ramp rates — all modifiable during active runs.
- Integrated annular heating assembly ensures rapid thermal equilibration and ±0.5 °C uniformity across the rotor chamber — essential for consistent destabilization of water-in-oil emulsions per GB/T 6533 requirements.
- High-torque inverter-driven motor delivers smooth acceleration and deceleration without mechanical wear; eliminates carbon brushes and reduces long-term maintenance overhead.
- LED-based digital display provides real-time readouts of rotor ID, actual speed, elapsed time, instantaneous RCF, set temperature, and diagnostic codes — enabling traceable operation logs.
- Multi-layer safety architecture includes automatic lid interlock, dynamic imbalance sensing, overtemperature cutoff, overspeed protection, and self-diagnostic fault reporting — compliant with IEC 61010-2-20 safety directives for laboratory centrifuges.
- Optimized rotor geometry supports four 200 mL borosilicate glass centrifuge tubes (validated for use in Daqing Oilfield applications); tube retention fixtures prevent axial displacement under sustained 2498 × g loading.
Sample Compatibility & Compliance
The DL5Y accommodates standard cylindrical glass centrifuge tubes (up to 200 mL volume, Ø50 mm × 150 mm) designed for petroleum matrix compatibility and thermal stability. It meets functional equivalence to ASTM D96–22 “Standard Test Method for Water and Sediment in Crude Oil by Centrifuge” and aligns with the procedural constraints of ISO 3735:2009. While not certified to GLP or FDA 21 CFR Part 11 out-of-the-box, its parameter logging capability, audit-ready error codes, and deterministic control logic support integration into validated workflows under ISO/IEC 17025-accredited petroleum testing laboratories. All electrical components conform to CE-marked safety specifications (EN 61010-1, EN 61000-6-3).
Software & Data Management
The DL5Y employs embedded firmware (no external PC dependency) with non-volatile memory storing up to 50 user-defined protocols. Each run records timestamped metadata including setpoints, actual RCF history, temperature profile, and fault events — exportable via RS-232 interface for integration with LIMS or QA documentation systems. The system supports manual calibration verification of speed and temperature sensors per ISO 13319 guidelines. No proprietary software installation is required; configuration and review are performed exclusively through the front-panel touch interface with tactile feedback.
Applications
- Quantitative water-and-sediment (BS&W) analysis in crude oil prior to pipeline transport or refinery intake — supporting custody transfer and contractual quality assurance.
- Emulsion stability evaluation in enhanced oil recovery (EOR) studies, particularly for surfactant- or polymer-flooded crude systems.
- Method validation and interlaboratory comparison studies under API RP 25 or CNPC technical specifications.
- QC screening of desalting efficiency in upstream separation units and electrostatic treaters.
- Research on asphaltene and paraffin precipitation behavior under thermally controlled centrifugation.
FAQ
Does the DL5Y meet ASTM D96 requirements for crude oil water content testing?
Yes — its maximum RCF (2498 × g), temperature control range (up to 70 °C), and horizontal rotor geometry satisfy the mechanical and thermal boundary conditions specified in ASTM D96–22 Annex A1.
Can the instrument be integrated into a networked laboratory data system?
It features an RS-232 port for protocol upload/download and event log extraction; however, Ethernet or USB connectivity is not supported natively.
Is rotor balancing mandatory before each run?
Yes — the imbalance detection system triggers immediate shutdown if mass asymmetry exceeds ±5 g per bucket; users must verify tube mass matching prior to lid closure.
What is the expected service life of the inverter motor under continuous operation?
Rated for ≥20,000 hours MTBF at 40 °C ambient, with no scheduled brush replacement or lubrication intervals.
Are spare glass tubes and rotor buckets available as consumables?
Original-specification 200 mL borosilicate tubes and aluminum bucket assemblies are stocked under part numbers XA-DL5Y-TUBE and XA-DL5Y-BKT, respectively.
