LY plate and frame pressure oil filter

Product introduction

LY plate frame pressure type oil filter is designed for power plants, power stations, industrial and mining enterprises of substation (room) lubricating oil depot, tractor station, petroleum, chemical, metallurgy, national defense industry and other units, used to filter transformer oil, turbine oil, aviation hydraulic oil and other liquid oil in the water and impurities.

Product structure

LY plate frame pressure type oil filter is the main component

LY plate frame pressure type oil filter is a movable device composed of filter bed, oil pump and coarse filter. LY Series Plate and Frame pressure type oil Filter (7 sheets)

LY plate and frame pressure type oil filter parts characteristics and functions

The filter bed is a continuous operation, under the action of pressure to filter the side filter group into the dirty oil, it is composed of a complete set of filter plate and filter frame in alternating order and a mechanism including a manual screw pressing device, pressing plate. The side of the filter plate and the filter frame is supported on the supporting plate of the frame, and the filter paper (or cloth) is lined between the filter plate and the filter frame as the filter medium. By the pressure of the pressing device, the filter plate and the filter frame are between the fixed thrust plate and the movable plate, thus forming a separate filter chamber. The filter paper (or cloth) is pressed between the filter plate and the filter frame, which plays the filtering role. The corresponding position of the filter plate and filter frame is provided with two liquid holes, when pressed into two complete channels, the triangular side of the ear into the dirty oil, after filtering through the filter chamber, from the other corresponding channel (in the ear fan side) out of clean oil.

During filtration, dirty oil is distributed to each filter frame through the input channel, and enters the filter plate through the filter paper. Clean oil is collected in the output channel and discharged out of the machine. While the dirt remains on the surface of the filter paper, a small amount of water in the dirty oil is absorbed by the capillary of the filter paper. When the filter slag on the surface of the filter paper gradually thickens and the water content in the filter paper increases, the filtration resistance increases. When the increase reaches a certain level (generally 0.2-0.35mpa), the filtration should be stopped and the filter paper should be replaced and continued to be used.

Gear pump and motor are connected with elastic rubber pads. In order to avoid mechanical accidents caused by excessive pressure, the lower part of the oil pump is provided with a valve (the product has been adjusted to the specified maximum pressure value when leaving the factory). The valve can be set at a lower value according to the user's needs, but it is not allowed to be adjusted to exceed the specified pressure value.

The oil pump and motor are arranged under the filter part, and the liquid output from the oil pump is conveyed to the filter part through the discharge pipe and the thrust plate.

The gear of the oil pump is supported by the rolling bearing, which is lubricated by the oil delivered by the oil pump itself. The coarse filter is installed in the suction end of the oil pump. Its function is to prevent large particles of impurities from entering the oil pump and damaging the oil pump. When unscrew the bolt on the cover of the coarse filter, remove the cover of the coarse filter, you can directly remove the filter screen cleaning, because if the coarse filter is covered with dirt, not only make the oil filter capacity rapidly decreased, but also may damage the filter screen.

When there is oil in the box, the oil return valve can be opened to absorb the oil and prevent the oil from overflowing and leaking outside the machine.

Equipment debugging

LY plate frame pressure type oil filter should first check the filter part of the filter plate, filter frame installation position, starting from the end of the thrust plate, the first piece is the plate, the second piece is the frame, the third piece is the plate, the fourth piece is the frame...... And so on, there is one more plate than there is frame. The plate and frame can not be inverted, such as inverted will not be able to filter. The grease coated on the plate, frame, thrust plate and pressing plate must be removed, and the coarse filter shall be cleaned at the same time. Before the test, the filter paper shall be sandwiched between each plate frame and the plate frame shall be pressed tightly.

LY plate frame pressure type oil filter before starting the oil pump shaft must be rotated two or three times by hand, that is, the rotation is flexible, there is no blocking phenomenon, and the sampling nozzle is closed, and then the resistant tubing (or iron pipe) and the oil filter oil suction end and drainage end connected well, the inlet and outlet tubing should be checked in advance, there should be no blockage and oil leakage phenomenon, at this time can be started.

The correct direction of motor rotation is the direction indicated by the arrow on the gear pump nameplate, and cannot be reversed.

If everything is normal, it will suck oil within a few seconds after driving, such as half a minute is still not sucking oil, which indicates that the suction end of the oil pump and the oil sample valve leakage phenomenon, should immediately stop working, troubleshoot and try again, to prevent the gear pump in no lubricating oil when damaged.

If the pressure gauge indicates a high value of 0.4 ~ 0.6Mpa after driving, and the oil pump has abnormal sound, it should be stopped immediately to find out the fault for removal.

All parts of the pressure oil filter are tested for operation adjustment before leaving the factory. After long-distance transportation, it is necessary to check whether all parts are intact when they arrive at the site of use. The selection of power supply must be able to withstand the maximum current of the machine. The circuit of this machine adopts 380V, 50Hz three-phase four-wire AC power supply, while connected with a ground wire. The oil pump motor on the distribution box of the oil filter should be checked to ensure that the connection is firm and the insulation is reliable. The pressure oil filter should be balanced before working.

D) Start the motor of the oil pump and observe whether the rotation direction is consistent with the mark. If not, change the phase of the power supply.

Test whether the rotation, oil pump - motor is stuck.

Product details