Two-way backwash filter

Abstract

The invention discloses a bidirection inverse washing and filtering device. The bidirection inverse washing and filtering device comprises a barrel, a filter core and a cleaning scraper blade mechanism; the filter core comprises an inner filter core and an outer filter being coaxial to each other; the axial direction lower end of the inner filter core is closed while the axial direction upper end opening is connected to the oil out passage; the axial direction upper ends of the inner filter core and the outer filter core are the closed ends while the axial direction lower ends of the inner filter core and the outer filter core are the opening ends connected to the pedestal for forming the oil in passage; the cleaning scraper blade mechanism is located between the inner filter core and the outer filter core. The space in the barrel is adequately used, the inner filter core is formed in the outer filter core and the inner filter core is formed in the outer filter core are used in a parallel mode for effectively raising the passing capability of the filter; the automatic adjusting following cleaning mechanism is formed in the gap between the inner filter core and the outer filter core, the automatic cleaning function can be guaranteed while the size is not increased; the following cleaning mechanism can realize the seamless connection between the cleaning mechanism and the filter core, the reverse cleaning effect can be greatly improved while the manufacturing precision for the filter core is not raised.

Description

technical field [0001] The invention belongs to the technical field of large-flow oil filtering equipment, and in particular relates to a lubricating oil and fuel filtering device for a marine engine. Background technique [0002] With the trend of large-scale marine diesel engines, users have higher and higher requirements on the flow range, precision level and service life of fuel filters and lubricating oil filters. In particular, the requirements for the flow rate of the filter are getting larger and larger, and the use of large-flow filters greater than 200 to 300 cubic meters per hour is becoming more and more frequent. The dimensions are getting bigger and bigger. Large-sized filters have high requirements for strength, complex structures, high material requirements, large component sizes, and difficult manufacturing. As the size increases, the increase in cost increases geometrically. At the same time, the space in the ship's engine room is limited. Large-sized fil...

AI Technical Summary

Problems solved by technology

Large-sized filters have high requirements for strength, complex structures, high material requirements, large component sizes, and difficult manufacturing. With the increase in size, the increase in cost increases geometrically.

At the same time, the space in the ship's engine room is limited. Large-sized filters will make it difficult to arrange the equipment in the ship's engine room, and the maintenance space cannot be guaranteed, which brings a lot of uncertainty to the maintenance work and has a great impact on the operation of the ship's diesel engine. Affect the safe navigation of the ship

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