I. Basic Introduction of QZL142-270 Product
In various industrial scenarios such as power plants, mechanical processing, and mining, hydraulic oil, transformer oil, and turbine oil, after long-term circulation and operation, will continuously accumulate moisture, metal debris, gum, and dissolved air. Polluted oil will accelerate the wear of internal components of the equipment, reduce the insulation performance of the insulating medium, and affect the stable operation of the entire equipment. The QZL series vacuum oil purifiers are conventional general-purpose oil purifying equipment. QZL142-270 is a standard model suitable for processing medium-sized oil volumes. The model numbers correspond to the processing flow and vacuum chamber specifications of the equipment, and are suitable for routine oil purification in workshops and oil treatment for equipment maintenance and other conditions.
The equipment adopts a physical purification process of vacuum separation combined with multi-stage filtration. No chemical demulsification agents are added throughout the process, and the chemical properties of the oil will not be altered. The oil after cyclic filtration can be re-used in the equipment, reducing the amount of new oil procurement and the environmental pressure caused by the disposal of waste oil. The daily operation and maintenance are simple, and it is suitable for indoor production areas without special explosion-proof requirements.
II. Overall Structure and Working Process of QZL142-270
The QZL142-270 whole machine adopts an integrated modular design. It mainly includes the power transmission unit, vacuum separation chamber, multi-layer filtration system, constant temperature heating component, and intelligent monitoring and protection system. The structural divisions are clear, and the disassembly and maintenance are convenient. There are no high requirements for installation space.
The power transmission unit consists of a vacuum pump and an oil pump. The vacuum pump continuously extracts the air inside the chamber to form a stable negative pressure environment, providing the basic condition for oil-water separation; the oil pump supports flow rate adjustment and can reduce the conveying speed for oil with a heavy degree of emulsification to prolong the residence time of the oil in the chamber and improve the dehydration effect. The internal components of the pump body have a wear-resistant protective layer, which can handle contaminated oil with mixed fine metal debris for a long time.
The vacuum separation chamber is the core component of the equipment for dehydration and degassing. The chamber interior is equipped with a misting oil dispersion structure. The oil entering the chamber is dispersed into a thin oil film, expanding the contact area between the oil and the negative pressure air. The free water and emulsified water in the oil quickly vaporize into water vapor, which is transported through the pipeline to the condensation device. The collected clear water is separately collected without causing secondary pollution. The chamber is equipped with a visible observation window, and the staff can observe the internal oil-water separation state without stopping the machine. The chamber plates are treated for rust prevention, and they are not prone to corrosion and leakage even when exposed to water for a long time.
The multi-layer filtration system is divided into four layers: pre-coarse filtration, magnetic adsorption, intermediate filtration, and precision filtration. It intercepts different-sized impurities layer by layer. The coarse filter blocks gum, large dust, and metal debris, protecting the downstream precision filter element; the magnetic structure adsorbs iron particles in the oil; the intermediate filter removes suspended gums; the precision filter retains fine contaminants. The filter elements adopt a quick-installation structure, and replacement does not require special tools. A variety of universal filter element consumables are provided, and they can be flexibly selected according to the types of oil to be processed.
The constant temperature heating component is equipped with a temperature sensing probe, which can autonomously regulate the oil temperature, reduce the viscosity of low-temperature oil, and assist in dispersing and stabilizing the emulsified layer. The equipment is equipped with an over-temperature power-off interlock mechanism. The outer layer of the heating area is equipped with an insulation layer to reduce heat loss. The entire monitoring system collects real-time data on liquid level, inlet and outlet pressure, and temperature. When filter blockage, abnormal oil level, or motor overload occurs, it will send a prompt signal and automatically adjust the operating status. After setting the basic parameters, it can operate in a long-term automatic cycle.
III. Practical Features of QZL142-270 Equipment
The equipment has no complex operation procedures, and the learning threshold is low. Ordinary maintenance personnel in the factory can independently complete the oil purifying operation after simple learning. The modular layout facilitates the transportation of the machine body and the maintenance of components. Spare parts such as filter elements, sealing rings, and sensing probes are readily available on the market, with a controllable replacement cycle, reducing downtime and waiting time for the equipment.
The purification process is gentle, relying solely on negative pressure evaporation and physical interception to remove impurities without damaging the original additives in the oil. The treated insulating oil and hydraulic oil can restore to the usage standards, effectively prolonging the oil replacement cycle. A single unit of the equipment is compatible with various industrial oils, including transformer insulating oil, turbine lubricating oil, machine tool hydraulic oil, and gear lubricating oil, and switching the oil type only requires minor adjustments to the temperature and negative pressure parameters. There is no need to purchase multiple oil filtering equipment separately, saving floor space.
The equipment has a relatively small vibration amplitude and reasonable noise control, making it suitable for continuous daily operation and maintenance in workshops. The automatic protection mechanism can reduce faults caused by human operational errors and lower the daily maintenance personnel input.
Four. Applicable Industry Scenarios for QZL142-270
This equipment can be used in power station substations and conventional thermal power plants to treat the internal insulating oil of transformers and transformers, and to clean and store the old oil in the online circulating purification storage tank. During unit maintenance, it can centrally and batch process turbid oil. After purification, the treated oil can be re-added and used.
Various mechanical processing workshops and heavy machine factory areas will generate a large amount of contaminated hydraulic oil and gear oil. Metal debris and cutting fluids produced during processing are prone to mix into the oil. The multi-layer filtration structure of QZL142-270 can effectively remove impurities and maintain the stable operation of the machine tool hydraulic system.
Maintenance workshops for ground equipment of mines and water pump stations are also suitable. The site has no flammable or explosive oil media. The equipment can be placed in the oil storage room and regular purification treatment of various lubricating oils is carried out to reduce equipment wear and faults.
Five. Basic Operations and Daily Maintenance Tips
Before starting the equipment, check the pipeline connections and the installation status of the filter elements, close all discharge valves, set the corresponding oil temperature and vacuum values, start the vacuum pump to pre-suction the cavity, then turn on the oil pump to carry out filtration. After the operation, first turn off the heating system, cool the oil, then sequentially shut down the oil pump and vacuum pump, open the discharge port to remove the accumulated water and sediment at the bottom of the cavity, and wipe the oil stains on the machine body surface.
After each operation, rinse the coarse filter screen, check for any leakage in the pipeline; clean the dust cover of the vacuum pump weekly, calibrate the temperature and pressure sensing elements; replace the adsorbed saturated precision filter element monthly, tighten all pipeline connection parts, and test the automatic protection function of the equipment. When the equipment is idle for a long time, empty the residual oil in the cavity and pipelines, store it in a dry and ventilated area to avoid oil sludge deposition and blockage of pipelines.
Standard operation and regular maintenance can stabilize the purification capacity of QZL142-270, extend the service life of the entire machine, and balance the requirements for stable operation, cost control, and environmental treatment of the equipment. This is also an important reason for the wide application of this model in the general industrial field.
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