In power industry, metallurgy, petrochemical and industrial manufacturing fields, insulating oil and hydraulic oil are core media ensuring stable operation of electrical equipment and mechanical systems. Long-term operation leads to oil contamination, water absorption, gas dissolution and particle doping, which reduces oil insulation performance, accelerates equipment aging, and even causes equipment failure and safety accidents. To solve these pain points of oil deterioration and pollution, the ZYD Series Double Stage Vacuum Oil Purifier comes out as a professional, high-efficiency and energy-saving oil purification equipment, specially designed for deep purification of transformer insulating oil and various industrial lubricating oils.
Different from single-stage vacuum oil purifiers with limited purification capacity, the ZYD Series adopts a mature double-stage high vacuum design, integrating vacuum dehydration, vacuum degassing, multi-stage precision filtration and constant-temperature heating technology. It can thoroughly remove free water, dissolved water, harmful gas, tiny solid particles and colloidal impurities from deteriorated oil, effectively restore the dielectric strength, cleanliness and stability of oil products, and help enterprises realize oil recycling, reduce equipment maintenance costs and extend the service life of oil and electrical equipment.
Core Advantages of Double-Stage Vacuum Purification Technology
The double-stage vacuum system is the core competitive advantage of ZYD Series, which achieves far better purification effect than traditional single-stage equipment. The first-stage vacuum system completes preliminary dehydration and degassing to remove most free water and bulk gas in the oil; the second-stage high-precision vacuum system performs deep treatment to eliminate dissolved water and micro gas that are difficult to remove by conventional equipment. The equipment stably maintains a high vacuum degree of -0.08~-0.099MPa, realizing low-temperature rapid purification without damaging the chemical properties of oil products.
After professional purification by ZYD Series, the oil quality reaches industry-leading standards: water content ≤5PPM, gas content ≤0.1%, filtered particle size ≤1μm, and dielectric strength stably up to 75-85KV. The treated oil cleanliness meets NAS 1638 Grade 5 standard, fully complying with the operating requirements of high-voltage transformers and precision industrial equipment.
Multi-Stage Precision Filtration & Full-Featured Purification
The ZYD Series is equipped with a multi-stage composite filtration system, which forms a gradient filtration structure from coarse filtration to fine filtration. The primary filter intercepts large impurities such as iron filings and dust; the medium filter removes medium-sized particle pollutants; the high-precision final filter captures micron-level tiny impurities and colloids. This multi-stage filtration mode avoids filter element blockage caused by single-layer filtration, greatly extends the service life of filter elements, and reduces daily replacement and maintenance costs.
In addition to dehydration, degassing and impurity removal, the equipment also has excellent oil regeneration performance. It can effectively reduce the acid value of deteriorated oil (acid value ≤0.03mgKOH/g after treatment) and control the dielectric loss tangent (tgδ ≤0.3% at 90℃), fundamentally improve the comprehensive performance of aging transformer oil, and realize the reuse of waste oil, bringing significant economic benefits to enterprises.
Wide Application Scenarios
With its efficient purification performance and stable operation capability, the ZYD Series double-stage vacuum oil purifier is widely applicable to multiple industries and scenarios:
- Power industry: Deep purification and regeneration of insulating oil for high-voltage, medium and low-voltage transformers, mutual inductors, circuit breakers and other power equipment
- Petrochemical and metallurgical industry: Purification of industrial lubricating oil, hydraulic oil and turbine oil
- Industrial manufacturing: Filtration and regeneration of various mechanical circulating oil to reduce equipment wear
- Maintenance engineering: On-site oil treatment and maintenance for power equipment overhaul, effectively improving equipment operating safety factor
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