Oil filter

Abstract

The invention discloses a novel oil filter which comprises filter bed, a standby filter bed, a first pressure relief pipe and a second pressure relief pipe. The output end of the standby filter bed is connected to a recovery device. The input end of the standby filter bed is connected to a conveying pump assembly through a control valve. The standby filter bed is connected to an oil return pipeline. The first pressure relief pipe is installed in an oil filter chamber in the filter bed, provided with a first pressure relief device and connected to the input end of the standby filter bed. The second pressure relief pipe is installed in an oil filter chamber in the standby filter bed and provided with a second pressure relief device, and the output end of the second pressure relief device is connected to an oil output device. The control valve, a pressure detection device and the conveying pump assembly are connected to a control system. According to the novel oil filter, the first pressure relief device can be started under the condition that internal pressure of the filter bed is too large, so that oil input into the filter bed is output to the standby filter bed to be filtered, meanwhile, the control valve is started to enable the conveying pump assembly to supply oil to the standby filter bed, and oil is stopped being conveyed to the filter bed.

Description

technical field [0001] The invention relates to an oil filter device for lubricating oil and other oil materials, in particular to an oil filter machine. Background technique [0002] See figure 1 , the oil filter machine has a filter bed 1, the output end of the filter bed 1 is connected to the recovery device 2, and the oil material to be filtered is transported to the filter bed through the input end of the filter bed through the delivery pump 3 and the driving motor 4 for filtering operation, In order to improve safety, a safety valve assembly 5 is connected in parallel at the front and rear ends of the delivery pump 3, and a filter 6 is installed in the safety pipeline where the safety valve assembly is installed. If the system pressure is overloaded, let the control system control the action of the safety valve assembly, and an oil return line connected to the oil output device 8 to be processed is set on the filter bed. The oil return line is equipped with an oil ret...

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, the oil filter can deal with unexpected high pressure inside the system through the safety valve assembly. However, in the event of a system failure, the oil to be filtered is continuously transported from the delivery pump to the oil filter chamber, while the output pipeline When the filtered oil cannot be discharged in time due to blockage or blockage in the oil filter chamber, the pressure in the oil filter chamber will continue to rise, which will pose a serious threat to the safe use of the system. The existing decompression structure of the system cannot Guarantee the absolute safety performance of the system

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