CN210769098U

CN210769098U - Precision filter for fuel oil

Info

Publication number: CN210769098U
Application number: CN201921206630.9U
Authority: CN
Inventors: 卞学学; 强海
Original assignee: Suzhou Fa St Lubrication Technology Co ltd
Current assignee: Suzhou Fa St Lubrication Technology Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-16
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to a precision filter for fuel oil, which comprises a fixed shell, wherein the bottom of the fixed shell is provided with an oil inlet hopper, one side of the oil inlet hopper is fixedly connected with an oil inlet pipe, the top of the inner cavity of the oil inlet hopper is fixedly provided with a grid plate, the top of the fixed shell is fixedly provided with a cover plate, the inner cavity of the fixed shell is provided with a filter element assembly, the filter element assembly comprises an upper end cover and a lower end cover, the upper end cover is fixedly connected with the cover plate, the bottom of the lower end cover is fixedly provided with a spring, the top of the spring is contacted with the lower end cover, a central pipe is fixedly arranged between the upper end cover and the lower end cover, the outer side of the central pipe is uniformly provided with filter paper, the outer side of the filter paper is provided with a filter plate, the cover plate is fixedly provided, meanwhile, the inside of the filter is convenient to clean, and the use is convenient.

Description

Precision filter for fuel oil

Technical Field

The utility model relates to a precision filter for fuel belongs to filter technical field.

Background

The fuel oil usually contains impurities, so the engine oil supply system must be provided with a proper filter for purifying the fuel oil, but in the present stage, in order to save cost, the tank furnace burns some low-cost fuel oil, the impurities in the fuel oil are more, the blockage of instruments, pipelines and oil guns of the tank furnace is often caused, the filter is often arranged in the pipelines or on an oil pump, and the following defects exist: the machine must be stopped during cleaning, the filtering capacity is insufficient, the whole system is blocked due to filtered impurities, and the abrasion to the oil pump is very serious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precision filter for fuel increases to the fuel filter effect, also makes things convenient for the inside clearance of filter simultaneously, convenient to use to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a precision filter for fuel oil comprises a fixed shell, wherein an oil inlet hopper is arranged at the bottom of the fixed shell, an oil inlet pipe is fixedly connected to one side of the oil inlet hopper, a grid plate is fixedly arranged at the top of an inner cavity of the oil inlet hopper, a cover plate is fixedly arranged at the top of the fixed shell, a filter element assembly is arranged in the inner cavity of the fixed shell and comprises an upper end cover and a lower end cover, the upper end cover is fixedly connected with the cover plate, a spring is fixedly arranged at the bottom of the lower end cover, the top of the spring is in contact with the lower end cover, a central pipe is fixedly arranged between the upper end cover and the lower end cover, filter paper is uniformly arranged on the outer side of the central pipe, a filter plate is arranged on the outer side of the filter paper, an oil outlet pipe is fixedly arranged on the cover plate and, and a resin layer is arranged on the inner surface of the flame retardant layer.

Furthermore, the two sides of the bottom of the fixed shell are fixedly provided with mounting lugs, and mounting holes are formed in the mounting lugs.

Furthermore, a sealing gasket is arranged at the joint of the cover plate and the fixed shell.

Furthermore, a sewage draining hole is formed in the bottom of the oil inlet hopper, and a control valve is arranged in the sewage draining hole.

Furthermore, all be provided with the check valve on advancing oil pipe, going out the oil pipe, and the junction all is provided with the sealing ring.

Furthermore, the filter paper is distributed between the filter plate and the central tube in a V shape, and through holes are uniformly formed in the central tube.

The utility model has the advantages that: the utility model relates to a, through setting up the oil inlet fill, carry the fuel to the oil feed fill in through advancing oil pipe when using, the grid tray that the inner chamber set up filters the great impurity of granule in the fuel earlier, leave impurity in advancing the oil fill, alleviate the filterable pressure of filter element group spare, also make things convenient for the clearance of filter simultaneously, through setting up the filter element group spare, in the filterable fuel entering fixed shell of grid tray, then the fuel can pass through the filter, filter paper gets into in the center tube, carry out accurate filtration to the fuel once more, increase the filter effect to the fuel, filter paper by the multilayer constitution has improved the filter fineness of fuel filter paper simultaneously, the oil resistance of filter paper has effectively been controlled, adaptable multiple environment, and difficult emergence is out of shape.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic view of an overall structure of a precision filter for fuel oil according to the present invention;

FIG. 2 is a sectional view of a precision filter for fuel oil according to the present invention;

FIG. 3 is a top view of a filter element assembly of a fuel precision filter according to the present invention;

FIG. 4 is a schematic structural view of a filter paper of the precision filter for fuel oil according to the present invention;

reference numbers in the figures: 1. a stationary housing; 2. an oil inlet hopper; 3. an oil inlet pipe; 4. a grid plate; 5. a cover plate; 6. a filter element assembly; 7. an upper end cover; 8. a lower end cover; 9. a spring; 10. a central tube; 11. filtering paper; 12. a filter plate; 13. an oil outlet pipe; 14. a filter layer; 15. a flame retardant layer; 16. a resin layer; 17. mounting lugs; 18. and a sewage draining hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a precision filter for fuel, includes fixed casing 1, fixed casing 1 bottom is provided with into oil fill 2, into oil fill 2 one side fixedly connected with advance oil pipe 3, advance oil fill 2 inner chamber top fixedly provided with grid tray 4, carry the fuel to advance in oil fill 2 through advancing oil pipe 3 when using, the grid tray 4 that the inner chamber set up filters the impurity that granule is great in the fuel earlier, stays impurity in advancing oil fill 2, alleviates the filterable pressure of filter element group spare 6, also makes things convenient for the clearance of filter simultaneously, fixed casing 1 top fixedly is provided with apron 5, fixed casing 1 inner chamber is provided with filter element group spare 6, filter element group spare 6 includes upper end cover 7, lower end cover 8, upper end cover 7 and apron 5 fixed connection, lower end cover 8 bottom fixedly is provided with spring 9, the top of spring 9 contacts with lower end cover 8, upper end cover 7, The fixed center tube 10 that is provided with between lower end cover 8, the center tube 10 outside evenly is provided with filter paper 11, the filter paper 11 outside is provided with filter 12, and in the fuel that filters through grid plate 4 got into fixed casing 1, then the fuel can pass through filter 12, filter paper 11 and get into in the center tube 10, carries out delicate filtration to the fuel once more, increases the filter effect to the fuel, the fixed oil pipe 13 that is provided with on the apron 5, oil pipe 13 and center tube 10 intercommunication, filter paper 11, filter 12 all include filter layer 14, filter layer 14 internal surface is provided with fire-retardant layer 15, fire-retardant layer 15 internal surface is provided with resin layer 16, and the filter paper that constitutes by the multilayer has improved the filter fineness of fuel filter paper, has effectively controlled the oil resistance of filter paper, adaptable multiple environment, and difficult emergence is out of shape.

More specifically, the two sides of the bottom of the fixed shell 1 are fixedly provided with mounting lugs 17, the mounting lugs 17 are provided with mounting holes for facilitating the installation of the filter and ensuring the stability of the filter during operation, the joint of the cover plate 5 and the fixed shell 1 is provided with a sealing gasket for ensuring the sealing performance of the filter and avoiding the leakage of fuel oil, the bottom of the oil inlet hopper 2 is provided with a sewage discharge hole 18, a control valve is arranged in the sewage discharge hole 18, the sewage discharge hole 18 can be opened after long-time use to discharge the impurities in the filter for convenient cleaning, the oil inlet pipe 3 and the oil outlet pipe 13 are both provided with one-way valves, the joints are both provided with sealing rings, the filter paper 11 is distributed between the filter plate 12 and the central pipe 10 in a V shape, the central pipe 10 is uniformly provided with through holes to increase the filtering area of the filter paper 11 and avoid the impurities from staying on, resulting in partial filter paper 11 clogging.

Example 2

As shown in FIG. 2, the top of grid plate 4 is fixedly provided with a sleeve, the central shaft of the sleeve is the same as that of the fixed shell 1, the spring 9 is positioned in the sleeve, the spring 9 is inserted into the sleeve when the filter element assembly 6 is installed, the positioning can be realized, the cover plate 5 is connected with the fixed shell 1, and the filter element assembly 6 is more stable in the fixed shell 1.

The utility model discloses the theory of operation: when using, carry the fuel to the oil feed fill 2 in through advancing oil pipe 3, the grid tray 4 that the inner chamber set up filters the great impurity of granule in the fuel earlier, leaves impurity in advancing oil fill 2, then in the fuel can get into fixed casing 1, then the fuel can pass through filter 12, filter paper 11 gets into in the center tube 10, carries out delicate filtration to the fuel once more, increases the filter effect to the fuel, and the fuel after the final complete filtration is carried to the engine through a play oil pipe.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. A precision filter for fuel oil comprises a fixed shell (1), and is characterized in that: the oil filter is characterized in that an oil inlet hopper (2) is arranged at the bottom of the fixed shell (1), one side of the oil inlet hopper (2) is fixedly connected with an oil inlet pipe (3), a grid plate (4) is fixedly arranged at the top of an inner cavity of the oil inlet hopper (2), a cover plate (5) is fixedly arranged at the top of the fixed shell (1), a filter element assembly (6) is arranged in the inner cavity of the fixed shell (1), the filter element assembly (6) comprises an upper end cover (7) and a lower end cover (8), the upper end cover (7) is fixedly connected with the cover plate (5), a spring (9) is fixedly arranged at the bottom of the lower end cover (8), the top of the spring (9) is contacted with the lower end cover (8), a central pipe (10) is fixedly arranged between the upper end cover (7) and the lower end cover (8), filter paper (11) is uniformly arranged on the, the oil outlet pipe (13) is fixedly arranged on the cover plate (5), the oil outlet pipe (13) is communicated with the central pipe (10), the filter paper (11) and the filter plate (12) respectively comprise a filter layer (14), a flame-retardant layer (15) is arranged on the inner surface of the filter layer (14), and a resin layer (16) is arranged on the inner surface of the flame-retardant layer (15).

2. A precision filter for fuel oil according to claim 1, wherein: the fixing device is characterized in that mounting lugs (17) are fixedly arranged on two sides of the bottom of the fixing shell (1), and mounting holes are formed in the mounting lugs (17).

3. A precision filter for fuel oil according to claim 1, wherein: and a sealing gasket is arranged at the joint of the cover plate (5) and the fixed shell (1).

4. A precision filter for fuel oil according to claim 1, wherein: a sewage discharge hole (18) is formed in the bottom of the oil inlet hopper (2), and a control valve is arranged in the sewage discharge hole (18).

5. A precision filter for fuel oil according to claim 1, wherein: the oil inlet pipe (3) and the oil outlet pipe (13) are both provided with one-way valves, and sealing rings are arranged at the joints.

6. A precision filter for fuel oil according to claim 1, wherein: the filter paper (11) is distributed between the filter plate (12) and the central tube (10) in a V shape, and through holes are uniformly formed in the central tube (10).