Single Stage High-efficiency Vacuum Transformer Oil Filtration Machine 1800Liter/Hour
I. Overview
1.The Scope Of Products
HZLY oil filter high-efficiency vacuum oil filter is used to remove trace moisture and solid pollutants from petroleum-based oils such as transformer oil, hydraulic oil, lubricating oil and gas turbine oil. The oil filter can bypass or clean the oil separately as needed.
2.Product Features
HZLY series equipment can：
A.Remove traces of water from the media. The total water content limit of the treated media can be less than 10 PPM.
B.Remove the gas from the medium. The gas content limit of the treated medium may be less than 1%.
C.Filter out solid particles in the medium. Control fluid cleanliness to NAS 6 or higher.
Note: This equipment is not suitable for applications where water is high, such as the requirement to remove deposited water. One solution at this time is to use this equipment with our HCP series. This will quickly remove large amounts of water from the oil and eventually reduce the total water content to 10-30 PPM or less.
II. Structure And Function
1.Structure Description
HZLY Oil filter is divided into two types: mobile and fixed. Mobile devices can be replaced as needed, and equipped with universal brake casters to help position the equipment on a narrow or uneven work site. Fixed structures are used for long - term non - moving work situations.
2.Function Introduction
2.1 Machine Function
HZLY Oil Filter has both dehydration and particle filtration functions.It does not require intervention by operators when working normally.
The device will give an alarm when there is an abnormality or need to be maintained.
For some reason, when the equipment is in danger, the internal security system will force the equipment to stop automatically.
2.2 The Filtration System
The HZLY oil filter is equipped with a primary filter (FL01) with a precision of 50 μm to protect the oil pump. A 5-10μm filter element is available in the secondary filter (FL02). Depending on the customer's requirements for cleanliness of the oil, the three-stage filter is available with an optional 1-3μm filter.
2.3 Von Spree Patent Degassing System
The vacuum pump removes the gas in the evacuation chamber to form a high vacuum state, and the oil enters the degassing chamber through the atomizer under the action of the negative pressure. Under the action of the atomizer, the oil is atomized into 50~500μm particles or bubbles, and the water is quickly evaporated into steam and steam under vacuum and the gas is discharged to the atmosphere under the action of a vacuum pump. The atomizer adopts an inverted structure, and the oil mist passes both the rise time and the fall time in the degassing chamber, thus greatly prolonging the degassing time of the oil. Under the same vacuum pump configuration, the degassing efficiency of our company's oil filter is 3-5 times that of other oil filters.
2.4 Heating System
In order to improve the degassing efficiency, the oil needs to be heated to a certain temperature before entering the degassing chamber. Our factory presets the temperature to 60 °C. The higher the temperature, the higher the degassing efficiency; but too high a temperature may cause oil cracking. In order to protect the heater and prevent oil cracking, the heater is equipped with a liquid level detecting device (LS01), which will be prohibited when there is no oil in the heater.
2.5 Condensing System
To protect the vacuum pump, the gas passes through the condenser before entering the vacuum pump to reduce the gas temperature. Only when the water content in the oil is too high, part of the water vapor is condensed and becomes liquid water deposited on the bottom of the condenser. The condenser is equipped with a liquid level detecting device (LS04). When the LS04 detects the liquid level, the vacuum pump stops running and the “Condenser Full" indicator lights up.
2.6 Vacuum System
The vacuum system consists of a vacuum pump (P01) and vacuum pump accessories.
2.7 Oil Drain System
The oil drain system consists of a gear pump with a displacement of xxml/r and a xxKw/x class motor. The check valve (CV02) is used to prevent oil from flowing back into the degassing chamber when the oil pump motor is stopped. The pressure switch (PS01) is used to detect the discharge pressure of the gear pump. When the gear pump discharge pressure is greater than 0.3Mpa, the gear pump drive motor stops running and the “filter blockage" indicator lights up.
2.8 Oil Level Control System
When the liquid level in the oil tank rises, the liquid level float (FB01) floats and drives the handle of the ball valve (MV11) to lift, the diameter of the ball valve becomes smaller, and the oil intake becomes smaller;On the contrary, the amount of oil entering becomes larger.
2.9 Overall Structure And Piping
The frame is made of high quality carbon steel and the surface is sprayed with plastics.
The container is made of high quality carbon steel and the surface is sprayed with plastics.
The connecting pipe is made of quality carbon steel and the surface is sprayed with plastics.
2.10 Electrical System
It has the functions of monitoring and alarming, action control and stopping protection for the equipment, which can make the equipment work automatically, safely and reliably. The PLC controller and remote monitoring display can be selected according to the user's needs.
The following control and display elements are arranged on the operation panel of the equipment：
● ● ● ● ● ● ● ● ● The temperature controller is used to control the oil heating temperature. For the use of the temperature controller, refer to the instruction manual of the temperature controller.". Maintenance 1. Fault Diagnosis And Elimination fault phenomenon Cause Exclusion measures The power indicator is off and the temperature controller is not displayed 1.QS1 and QS2 are not closed 2. Power supply fault phase, over voltage or under voltage 3. The power supply is not connected properly. 1. Close QS1 and QS2 2. Discharge power failure according to PR indicator lamp 3. Connect the zero line The power indicator is not on. The temperature controller is on 1. The power indicator is broken 1. Replace power indicator The power indicator is on and the temperature controller is not displayed. 1. Temperature controller is bad 2. Replace Temperature controller No fault prompt, the device does not start 1. Emergency stop button is pressed or damaged 2. Relay KA2 is bad or badly contacted 3. Relay KA3 is bad or bad contact 4. Thermal relay FR1 is bad 5. Thermal relay FR2 is bad 1. Reset or replace the emergency stop button 2. Check or replace the relay KA2 3. Check or replace the relay KA3 4. Check or heat exchange relay FR1 5. Check or replace the heat relay FR2 "Motor overload" indicator lights up 1. Vacuum pump or oil pump motor overload 2. Thermal relay FR1 or FR2 calibration value is too low 3. Thermal relay FR1 or FR2 is broken 4. Vacuum pump motor or oil pump motor is broken 1. Eliminate overload fault of vacuum pump or oil pump motor 2. Re-calibrate the thermal relay FR1 or FR2 3. Replace the thermal relay FR1 or FR2 4.Replace the vacuum pump or pump motor "Fine filter blocking" indicator light on 1. Oil outlet valve MV01 is not opened 2. Obstruction of fine filter (FL02,FL03) 3. Pressure switch (PS01) is broken 1. Open the oil outlet valve 2.Replace the fine filter (FL02,FL03) 3. Replace the pressure switch (PS01) "Condenser full" indicator light on 1. High level of the condenser 2. The condenser level switch is installed in the wrong position 3. The condenser level switch (LS04) is broken 1. Drain the condenser liquid 2. The condenser level switch floating ball is installed vertically downward 3. Replace the condenser level switch (LS04) 2. Daily Maintenance Procedures 2.1 Filter Core Inspection, Cleaning And Replacement After working for a period of time, the filter element must be maintained, including cleaned or replaced, when the pressure difference through the filter element increases to the design limit due to the blockage of dirt. The material and structure of the filter element determines whether it can be cleaned and how it is cleaned. Note: In the filter element used in the HZLY oil filter, the coarse filter FL01 can be cleaned. Fine filter elements FL02, FL03 and vacuum pump oil filter cannot be cleaned and must be replaced. 2.2 Clean And Replace The Coarse Filter Element When the vacuum degree reaches -0.07~ -0.1mpa, the oil viscosity is low, the liquid level control ball valve (MV11) is fully opened, and the oil intake speed is still slower than the oil discharge speed of the oil pump, the machine should be stopped to remove the filter mesh for maintenance. The filter can be cleaned in gasoline and alkaline cleaning liquid, and compressed air can be used to blow the dirt between the mesh holes. Before installation, check if the filter mesh is damaged. If damaged, replace it. Method of replacing fine filter FL02, FL03 Step Method Remark 1 Close the ball valve (MV02) of the inlet pipe, open the oil outlet valve MV01 and the air supply valve MV07 2 Start the oil pump and drain the oil in the filter as much as possible Judging by observing the outlet transparent PVC steel pipe 3 Turn off the machine when there is no oil in the container. 4 Unscrew the flange bolts one by one and remove the flange cover 5 Unscrew the old filter. After removing the filter core, check whether the "O" ring can continue to be used under the fixed thread of the filter core 6 Install and tighten the new filter Be careful not to contaminate the filter when installing 7 Install the filter flange cover as per the original procedure. 2.3 Inspection/maintenance Schedule Item Period/time Remark Check the fault light daily heck each instrument for damage daily Check whether the inlet and outlet hoses are damaged and sealed well at any time Do not use the test hose for a long time! Replace the coarse filter FL01 When the vacuum reaches -0.07~-0.1Mpa,the viscosity of the oil is low, the liquid level control ball valve (MV11) is fully opened, and the oil inlet speed is still slower than the oil pump discharge speed. Replace the fine filter FL02, FL03 When the pressure reaches 0.25 MPa or the "Filter Blocking" indicator is on Replace vacuum pump oil After the vacuum pump oil is emulsified or the vacuum pump runs for more than 500 hours Be sure to replace the vacuum pump oil and vacuum pump oil filter in time, otherwise the vacuum pump will be damaged. Clean up dirt or rust inside the container When maintaining or replacing the filter element Check the status of hoses and seals Weekly Check pressure switch Evert 6 months Check instrument accuracy Every two years
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