CN115646650A - Filter element with high ferromagnetic impurity filtering performance - Google Patents
Filter element with high ferromagnetic impurity filtering performance Download PDFInfo
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- CN115646650A CN115646650A CN202211416589.4A CN202211416589A CN115646650A CN 115646650 A CN115646650 A CN 115646650A CN 202211416589 A CN202211416589 A CN 202211416589A CN 115646650 A CN115646650 A CN 115646650A
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- magnetic steel
- lower cover
- ferromagnetic
- sealing surface
- impurity filtering
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Abstract
The invention discloses a filter element with high ferromagnetic impurity filtering performance, which is suitable for a medium working environment polluted by high ferromagnetic impurities, and specifically comprises a shell assembly, a magnetic steel assembly, a spring and a base, wherein the shell assembly comprises a filter screen and a lower cover, one axial end of the filter screen is connected with the lower cover, and the inner wall of the lower cover is provided with a continuous and closed first contact sealing surface or sealing line; the magnetic steel assembly is movably inserted into the filter screen and the lower cover along the axial direction of the shell assembly and comprises magnetic steel and a magnetic steel mounting seat, a continuous and closed second contact sealing surface or sealing line is arranged on the magnetic steel mounting seat, and when the second contact sealing surface or sealing line is tightly attached to the first contact sealing surface or sealing line, the filter element valve seal is formed; the spring is installed inside the lower cover and between the base and the magnetic steel installation seat. The invention can efficiently filter ferromagnetic dirt in fuel and lubricating oil, has ferromagnetic impurity capacity of temporary storage and accommodation, and can have bypass function when the filter element is blocked.
Description
Technical Field
The invention belongs to the technical field of fuel and lubricating oil systems of aero-engines, and particularly relates to a ferromagnetic dirt filtering filter element suitable for the fuel and lubricating oil systems.
Background
According to the requirements of fuel and lubricating oil systems of engines in China, the fuel and lubricating oil can be normally used under the condition of fully using specified polluted working media. However, the conventional filter element is not specially designed for ferromagnetic dirt. Taking the engine fuel system as an example, the engine should be able to start and operate using the contaminated fuel specified in table 1. It can be seen from table 1 that the ferromagnetic contamination content in the contaminant species is over 50%, and the present invention is provided to improve the filtering performance of the system filter element on ferromagnetic contamination.
TABLE 1 fuel contamination
Disclosure of Invention
In view of the above-mentioned needs, the present invention aims to provide a filter element having high ferromagnetic impurity filtering performance, which can efficiently filter ferromagnetic contaminants in fuel and oil, and which has a ferromagnetic impurity temporary storage and storage capacity, and which can also have a bypass function particularly when the filter element is clogged.
The invention is realized by the following technical scheme:
the filter element with high ferromagnetic impurity filtering performance comprises,
the shell component comprises a filter screen made of a non-ferromagnetic material and a lower cover made of a non-ferromagnetic material, wherein one axial end of the filter screen is connected with the lower cover, a continuous and closed first contact sealing surface or sealing line is arranged on the inner wall of the lower cover, and a medium outlet is also formed in the lower cover;
the magnetic steel component is movably inserted into the filter screen and the lower cover along the axis direction of the shell component and comprises magnetic steel made of ferromagnetic materials and a magnetic steel mounting seat made of non-ferromagnetic materials, one end of the magnetic steel is connected with the magnetic steel mounting seat, a continuous and closed second contact sealing surface or sealing line is arranged on the magnetic steel mounting seat, the magnetic steel is located in a closed area of the second contact sealing surface or sealing line, and when the second contact sealing surface or sealing line is tightly attached to the first contact sealing surface or sealing line, the second contact sealing surface or sealing line and the first contact sealing surface or sealing line form filter element valve sealing;
the base is arranged on one side, far away from the magnetic steel, in the lower cover;
the spring is installed inside the lower cover and between the base and the magnetic steel installation seat, and two ends of the spring are tightly attached to the magnetic steel installation seat and the base respectively.
The cartridge valve seal has a first contact seal surface combined with the second contact seal surface, a first contact seal surface combined with the second contact seal line, and a first contact seal line combined with the second contact seal surface.
Further, the magnet steel is of a variable cross-section structure, and the cross section of the magnet steel is gradually increased in the direction of the free tail end of the magnet steel, wherein one end of the magnet steel is connected with the magnet steel mounting seat.
Furthermore, a through hole is formed in the magnetic steel, and the axis of the through hole is perpendicular to the axis of the magnetic steel.
Furthermore, an impurity storage groove is formed in the end face of one end, connected with the magnetic steel, of the magnetic steel mounting seat, and the impurity storage groove is located in the second contact sealing surface or the line area.
Further, high ferromagnetism impurity filtering performance's filter core still includes the upper cover of non-ferromagnetic material preparation, the axial other end at the filter screen is installed to the upper cover, and it has the medium entry to cover to open on the upper cover.
Further, the filter element with high ferromagnetic impurity filtering performance further comprises a sealing gasket, and the sealing gasket is arranged on the inner wall of the lower cover to form a first contact sealing surface.
Further, the base is fixed inside the lower cover through a hole by an elastic retainer ring.
Alternatively, the magnetic steel is connected with a threaded hole in the magnetic steel mounting seat through an external thread at one end.
Alternatively, the lower cover is provided with a medium outlet on a circumferential surface thereof.
As an option, be provided with the spring location arch on the base, be provided with the spring mounting groove on the magnet steel mount pad, and magnet steel, magnet steel mount pad, spring, base, lower cover and filter screen are coaxial.
As an option, still open the notch on the magnet steel mount pad, when filter core bypass valve was opened, this notch was used for increasing working medium's flow area, reduced the flow resistance of filter core.
Compared with the prior art, the filter element with high ferromagnetic impurity filtering performance has the following advantages:
(1) The magnetic steel is of a variable cross-section structure, and the cross-sectional area of the magnetic steel, which corresponds to the inlet end of the filter element medium, is larger than the cross-sectional area, which corresponds to the connecting end of the magnetic steel mounting seat, so that an umbrella-shaped shielding protection structure similar to an opening is formed, and impurities adsorbed on the magnetic steel are prevented from being flushed out of the magnetic adsorption range of the magnetic steel by the medium flowing at a high speed;
(2) The magnetic steel is provided with a plurality of through holes, so that the adsorption area of the magnetic steel is increased, and meanwhile, ferromagnetic impurities adsorbed on the magnetic steel can be conveniently cleaned at a later stage;
(3) An impurity storage tank is arranged on the magnetic steel mounting seat and is used for storing ferromagnetic impurities which are washed and moved by a medium;
(4) Through the seal structure that sets up on magnet steel mount pad and the lower cover, it is sealed to form the filter core valve, utilizes the spring to control opening and closing pressure of valve, and when the filter screen blockked up and cause pressure too big, the filter core valve was sealed to be opened, and the medium is direct to flow from the medium outlet of covering down.
Drawings
FIG. 1 is a front elevation sectional view of the present invention;
FIG. 2 is a cross-sectional view of the housing assembly of the present invention;
FIG. 3 is a cross-sectional view of the magnetic steel assembly of the present invention;
FIG. 4 is a top view of the magnetic steel assembly of the present invention;
in the figure: 1-shell component, 2-magnetic steel component, 3-spring, 4-base, 5-elastic retainer ring for hole, 6-upper cover, 7-filter screen, 8-sealing pad, 9-lower cover, 10-magnetic steel, 11-magnetic steel mounting seat.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the common technical knowledge and conventional means in the art without departing from the technical idea of the present invention are included in the scope of the present invention.
As shown in fig. 1 to 4, in this embodiment, the filter element with high ferromagnetic impurity filtering performance mainly comprises a casing component 1, a magnetic steel component 2, a spring 3, a base 4 and a circlip 5 for hole.
Referring to fig. 1 and 2, the housing assembly 1 comprises an upper cover 6, a filter screen 7, a lower cover 9 and a sealing gasket 8, wherein the upper cover 6, the filter screen 7 and the lower cover 9 are connected by welding, the filter screen 7 is clamped between the upper cover 6 and the lower cover 9, the upper cover 6 is provided with a medium inlet, and the circumferential surface of the lower cover 9 is provided with a medium outlet. The gasket 8 is vulcanized in a groove on the inner wall of the lower cover 9. Wherein the upper cover 6, the filter screen 7 and the lower cover 9 are all made of non-ferromagnetic materials.
As shown in fig. 3 and 4, the magnetic steel assembly 2 is composed of a magnetic steel 10 and a magnetic steel mounting base 11, and one end of the magnetic steel 10 is installed in the magnetic steel mounting base 11 through threaded connection. The magnetic steel 10 is made of ferromagnetic material, and the magnetic steel mounting seat 11 is made of non-ferromagnetic material. Magnet steel 10 uses the structure of falling T shape, and the one end cross-section that corresponds upper cover 6 is great, and is less with 11 threaded connection's of magnet steel mount pad one end cross-section, and above-mentioned variable cross-section structure is in case the working medium of high-speed flow washes out magnet steel magnetic force adsorption zone with absorbent ferromagnetic impurity in the magnet steel, opens the through-hole that has a plurality of perpendicular to magnet steel 10 axes in magnet steel 10, can improve magnet steel adsorption area, still makes things convenient for follow-up absorbent ferromagnetic impurity of clearance through the through-hole. An annular groove structure with a U-shaped cross section is designed on the end face of the magnetic steel mounting seat 11 connected with the magnetic steel 10 and is used for storing ferromagnetic impurities moved by medium scouring.
As shown in fig. 1, a ring of annular protrusion is formed on the end surface of the magnetic steel mounting seat 11 connected to the magnetic steel 10, and the end of the annular protrusion is used as one of the structures for forming the valve sealing surface or line.
As shown in fig. 2, the upper end of the spring 3 is inserted into the mounting groove on the lower end face of the magnetic steel mounting seat 11, and the lower end of the spring 3 is sleeved on the spring mounting protrusion of the base 4. After the magnetic steel component 2 is installed in the shell component 1, the magnetic steel component 2 can be used as a valve core of a valve under the cooperation of the spring 3, the base 4 and the elastic retainer ring for hole 5 to form a bypass valve structure. When the sieve 7 is blocked, the product working medium can flow through the bypass valve into the next stage system.
The filter element with high ferromagnetic impurity filtering performance has high ferromagnetic impurity filtering performance, temporary storage and accommodation capacity for ferromagnetic impurities, and bypass capacity.
Referring to fig. 1, unfiltered working medium flows into the inner cavity of the filter screen 7 of the housing component 1 from the medium inlet above the upper cover 6 in fig. 1, ferromagnetic impurities in the working medium are adsorbed by the magnetic steel component 2 and then flow into a lower system after being filtered by the filter screen 7 in the housing component 1. After the filter screen 7 is blocked in the shell component 1, the magnetic steel component 2 moves downwards under the action of the pressure difference of front and back working media, the bypass valve in the lower cover 9 is opened, and the working media directly flow into a lower system after adsorbing ferromagnetic impurities through the magnetic steel component 2. As shown in fig. 4, the magnetic steel mounting base 11 is further provided with 3 arc-shaped notches, and when the bypass valve is opened, the 3 arc-shaped notches serve as partial flow channels of the working medium, so that the flow resistance of the working medium is reduced.
The above embodiments are not intended to limit the scope of the present invention, and any variations, modifications, or equivalent substitutions made on the technical solutions of the present invention should fall within the scope of the present invention.
Claims (10)
1. High ferromagnetism impurity filtering performance's filter core, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the shell assembly (1), the shell assembly (1) includes a filter screen (7) made of non-ferromagnetic material and a lower cover (9) made of non-ferromagnetic material, one axial end of the filter screen (7) is connected with the lower cover (9), a continuous and closed first contact sealing surface or sealing line is arranged on the inner wall of the lower cover (9), and a medium outlet is further formed in the lower cover (9);
the magnetic steel component (2) is movably inserted into the filter screen (7) and the lower cover (9) along the axis direction of the shell component (1), the magnetic steel component (2) comprises a magnetic steel (10) made of ferromagnetic materials and a magnetic steel mounting seat (11) made of non-ferromagnetic materials, one end of the magnetic steel (10) is connected with the magnetic steel mounting seat (11), a continuous and closed second contact sealing surface or sealing line is arranged on the magnetic steel mounting seat (11), the magnetic steel (10) is located in a closing area of the second contact sealing surface or sealing line, and when the second contact sealing surface or sealing line is tightly attached to the first contact sealing surface or sealing line, the second contact sealing surface or sealing line and the first contact sealing surface or sealing line form filter element valve sealing;
the base (4), the said base (4) is installed in one side far away from magnet steel (10) of the inside of lower cover (9);
the spring (3) is installed inside the lower cover (9) and between the base (4) and the magnetic steel installation seat (11), and the two ends of the spring (3) are tightly attached to the magnetic steel installation seat (11) and the base (4) respectively.
2. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the magnetic steel (10) is of a variable cross-section structure, and the cross section is gradually enlarged from the direction of the free tail end of the magnetic steel (10) at one end of the magnetic steel (10) connected with the magnetic steel mounting seat (11).
3. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the magnetic steel (10) is provided with a through hole, and the axis of the through hole is perpendicular to the axis of the magnetic steel (10).
4. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: and an impurity storage tank is arranged on the end face of one end, connected with the magnetic steel (10), of the magnetic steel mounting seat (11), and the impurity storage tank is positioned in the second contact sealing surface or the linear region.
5. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the filter screen is characterized by further comprising an upper cover (6) made of a non-ferromagnetic material, the upper cover (6) is installed at the other axial end of the filter screen (7), and a medium inlet is formed in the upper cover (6).
6. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the sealing device further comprises a sealing gasket (8), wherein the sealing gasket (8) is arranged on the inner wall of the lower cover (9) to form a first contact sealing surface.
7. A filter element with high ferromagnetic impurity filtering performance according to claim 1, wherein: the base (4) is fixed inside the lower cover (9) through a hole by an elastic retainer ring.
8. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the magnetic steel (10) is connected with a threaded hole in the magnetic steel mounting seat (11) through an external thread at one end.
9. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: the circumferential surface of the lower cover (9) is provided with a medium outlet.
10. The filter cartridge with high ferromagnetic impurity filtering property according to claim 1, wherein: it is protruding to be provided with the spring location on base (1), be provided with spring mounting groove on magnet steel mount pad (11), and magnet steel (10), magnet steel mount pad (11), spring (3), base (4), lower cover (9) and filter screen (7) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211416589.4A CN115646650A (en) | 2022-11-13 | 2022-11-13 | Filter element with high ferromagnetic impurity filtering performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211416589.4A CN115646650A (en) | 2022-11-13 | 2022-11-13 | Filter element with high ferromagnetic impurity filtering performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115646650A true CN115646650A (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211416589.4A Pending CN115646650A (en) | 2022-11-13 | 2022-11-13 | Filter element with high ferromagnetic impurity filtering performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115646650A (en) |
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2022
- 2022-11-13 CN CN202211416589.4A patent/CN115646650A/en active Pending
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