CN217163632U - Fluid filter element and high-efficiency filter - Google Patents

Abstract

The utility model discloses a fluid filter element and high efficiency filter, wherein the fluid filter element comprises a filter cylinder, the two ends of the filter cylinder are provided with an upper sealing disc and a lower sealing disc which are integrally formed, air holes are distributed on the circumferential side wall of the filter cylinder, the upper end and the lower end of the filter cylinder are both provided with a plugging area, the length of the plugging area is D, the filter cylinder is provided with a filter screen, the filter screen is coated on the circumferential outer side of the filter cylinder in a detachable mode, the length of the filter cylinder is L, the width of the filter screen is D, and then L is more than D >; the filter comprises a shell and a fluid filter element arranged in the shell, wherein the shell is provided with an inlet pipe and an outlet pipe, the top of the shell is provided with a cover plate, the middle part of the cover plate is provided with an inner boss matched with the diameter of the filter cylinder, the inner boss extends into the filter cylinder, an upper sealing disc is abutted to the cover plate and is sealed by a corresponding end sealing ring, and the lower end of the filter cylinder is communicated with the outlet pipe. The filter core is convenient to unpick and wash and the repacking fast, and does not influence the sealed quality of repacking, improves the filter core promptly and unpick and wash maintenance efficiency and guarantees that the filter later stage has good filter effect simultaneously.

Description

Fluid filter element and high-efficiency filter

Technical Field

The utility model belongs to the technical field of the filter, concretely relates to fluid filter core and high efficiency filter.

Background

Most fluids typically require a final filtration before entering the downstream utility equipment, such as natural gas filters that are typically used to remove dust and other contaminants from the incoming gas to improve the cleanliness of the incoming gas before entering the surge tank, or other equipment. The filter element is arranged in the general filter, the filter element is provided with the filter screen, so that the fuel gas entering the fuel gas pressure regulating box passes through the filter screen in the filter, and dust and other dirty dirt in the fuel gas are blocked by the filter screen and cannot enter the next section of pipeline through the filter. Or if the front end of the filling pump on some medicament production lines is also provided with a filter for filtering impurities in liquid medicaments, protecting the pump, reducing or preventing the abrasion of the impurities to the running parts of the pump, protecting the normal running of the pump, improving the utilization rate of the pump and the like.

Most filters on the market mainly include the casing and set up the filter core in the casing, if the patent number is "201320892486.5", the chinese patent of patent name "gas filter equipment", wherein disclose a filter core structure, it mainly strains a section of thick bamboo, the apron, the bottom plate, the filter screen, and the filter screen fixed screen constitutes, the filter screen passes through the filter screen fixed screen to be fixed in and strains a section of thick bamboo circumference outside, most of the time, tear the washing for the later stage for being convenient for, adopt the mode that wire rope directly binded to replace the filter screen fixed screen, and the tip of filter screen then mainly seals through apron and bottom plate and makes level.

In the using process, when dust and other dirty dirt are accumulated on the filter screen to a certain degree, the filter element needs to be unpicked and washed, otherwise, great potential safety hazard is caused, the filter element is manually wrapped on the filter cylinder after unpicked and washed, but most of the filter screens are steel wire gauze screens, in the operation process, the two ends of the filter screen are difficult to be flush with the filter cylinder, the wrapping force is different, the tightness of the wrapping is inconsistent, the filter screen and the filter cylinder are difficult to be clamped simultaneously by the bottom plate and the cover plate, the unpicking and washing efficiency of the filter is reduced, and in the traditional filter, the gaps are formed between the cover plate and the corresponding sealing surfaces of the bottom plate and the cover plate and the filter shell cover plate by adopting end face rubber gaskets for sealing, so that the end parts of the filter screens are not flat, gaps are possibly formed between the cover plate and the corresponding sealing surfaces, and further sealing defects are caused, and gas possibly does not pass through filtration and enters the downstream, causing damage to downstream equipment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a fluid filter core and high efficiency filter to filter core tears open among the solution prior art and washes inconveniently, and then leads to sealed defect scheduling problem.

The technical scheme is as follows:

a fluid filter element comprises a filter cylinder with two open ends, and is characterized in that: the filter cartridge is characterized in that an upper sealing disc and a lower sealing disc which are integrally formed are arranged at two ends of the filter cartridge, the diameters of the upper sealing disc and the lower sealing disc are larger than the diameter of the filter cartridge, air holes are distributed in the circumferential side wall of the filter cartridge, plugging areas are arranged at the upper end and the lower end of the filter cartridge, the length of each plugging area is D, the filter cartridge is provided with a filter screen, the filter screen is detachably coated on the circumferential outer side of the filter cartridge, the length of the filter cartridge is L, the width of the filter screen is D, and L is larger than or equal to D > (L-2D).

Scheme more than adopting, upper and lower sealed dish and strain a section of thick bamboo integrated into one piece, can fully guarantee the precision with the sealed face of filter, prevent that the gap from appearing in the slope, and the filter screen both ends must overlap with the shutoff district, seal up the tip of filter screen through the shutoff district, ensure that gaseous can only can get into after each layer of filter screen filters and strain a section of thick bamboo in, after the later stage is torn the back to the filter core like this, the filter screen can quick wraparound on straining a section of thick bamboo, and even the tip flushes the required precision is not high, also can not worry because the not flush sealed dish short circuit condition about leading to of filter screen tip takes place, can improve greatly and tear down and wash repacking efficiency, guarantee filter core later stage normal use effect simultaneously.

Preferably, the method comprises the following steps: the outer end faces of the upper sealing disc and the lower sealing disc are provided with annular sunken grooves, and end sealing rings matched with the annular sunken grooves are configured. By adopting the scheme, the tightness of circumferential diffusion of gas at the upper end and the lower end of the filter cylinder can be improved, and the gas entering the filter can only enter the outlet pipe after acting through the filter element.

Preferably, the method comprises the following steps: the plugging area and the filter cartridge are integrally formed. By adopting the scheme, the implementation cost of the filter element can be reduced, and the filter element is convenient to process.

On the basis of the scheme, the application also provides a high-efficiency filter, and the technical scheme is as follows:

a high efficiency filter comprising a housing and a fluid filter element as described above disposed within the housing, the housing having an inlet tube and an outlet tube, the key being: the top of the shell is provided with a cover plate fixedly connected with the shell, the middle part of the cover plate is provided with an inner boss matched with the diameter of the filter cylinder, the inner boss extends into the filter cylinder, the upper sealing disc is abutted against the cover plate and is sealed by a sealing ring at the corresponding end part, and the lower end of the filter cylinder is communicated with an outlet pipe.

By adopting the scheme, the inner boss extends into the end part of the filter cylinder, and the end sealing ring on the upper sealing disc is matched to greatly improve the sealing effect on the top end of the filter cylinder.

Preferably, the method comprises the following steps: the inner side of the upper end of the shell is provided with an annular sinking platform, and the cover plate is provided with an outer boss which is abutted against the annular sinking platform. By adopting the scheme, the outer boss and the inner boss form a multi-stage sealing step structure, the top sealing effect of the filter is favorably further improved, and the reliability of the compression effect on the filter element is ensured.

Preferably, the method comprises the following steps: the circumference outside cover of outer boss is equipped with the circumference sealing washer, the circumference sealing washer offsets with the inner wall of casing. By adopting the scheme, the sealing performance between the cover plate and the shell can be improved.

Preferably, the method comprises the following steps: the cover plate is provided with an annular embedded groove for embedding the upper sealing disc. By adopting the scheme, the upper sealing disc is completely embedded into the annular caulking groove and is combined with the inner boss inside, so that the sealing effect on the top end of the filter cylinder is further improved.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides a fluid filter core and high efficiency filter, the filter core of being convenient for tear open fast and wash and repack, and do not influence the sealed quality of repack, improve the filter core promptly and tear open and wash maintenance efficiency and guarantee simultaneously that the filter later stage has good filter effect.

Drawings

FIG. 1 is a cross-sectional view of a medium efficiency filter of the present invention;

FIG. 2 is a perspective view of the high efficiency filter of FIG. 1;

FIG. 3 is a schematic view of a fluid filter cartridge configuration (without a screen);

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is an embodiment of a cover plate;

FIG. 6 is a cross-sectional view of another embodiment of a cover plate;

fig. 7 is a schematic view of the housing structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 7, a fluid filter element and a high efficiency filter are shown, wherein the fluid filter element mainly includes a filter cartridge 1 with two open ends, the two ends of the filter cartridge 1 are provided with an upper sealing disc 10 and a lower sealing disc 11 which are integrally formed, the diameters of the upper sealing disc 10 and the lower sealing disc 11 are both larger than the diameter of the filter cartridge 1, air holes 12 are distributed on the circumferential side wall of the filter cartridge 1, the upper end and the lower end of the filter cartridge 1 are both provided with a plugging area 13, the length of the plugging area 13 is D, the filter cartridge 1 is configured with a filter screen 2, the filter screen 2 is detachably coated on the circumferential outer side of the filter cartridge 1, the length of the filter cartridge 1 is L, and the width of the filter screen 2 is D, so that L > D > (L-2D).

In specific implementation, as shown in fig. 1, 3 and 4, the filter cartridge 1 is a hollow cylinder with two open ends, the upper sealing disc 10 and the lower sealing disc 11 are both circular, the filter cartridge 1 is usually made of a metal material such as stainless steel, the upper sealing disc 10 and the lower sealing disc 11 can be molded with the filter cartridge 1 by casting, or can be fixed to the two ends of the filter cartridge 1 by later welding, as long as the sealing performance of the connection part is ensured, and the upper sealing disc 10 and the lower sealing disc 11 are parallel to each other and perpendicular to the axis of the filter cartridge 1.

It can be known from the figure that, gas pocket 12 is similar with the filter core structure in traditional filter, evenly distributed on straining a section of thick bamboo 1, the difference of this application lies in, the distribution region of gas pocket 12, and strain and have obvious separate region between the upper and lower both ends tip of section of thick bamboo 1, do not have gas pocket 12 to exist in this region, constitute foretell shutoff district 13 promptly, combine the width scope of aforementioned filter screen 2, after the installation, the both ends of filter screen 2 all are in the within range of shutoff district 13, even after unpicking and washing the reinstallation, the terminal surface portion of filter screen 2 flushes, can not influence the terminal surface sealed effect of straining a section of thick bamboo 1 yet, receive the separation of shutoff district 13 simultaneously, particulate matter also is difficult to directly invade straining a section of thick bamboo 1 inside through filter screen 2 tip clearance directly.

Referring to fig. 1, filter screen 2 wraps on straining a section of thick bamboo 1 with the mode of multilayer parcel usually, binds through ribbon 7 afterwards, and ribbon 7 is preferred steel wire or iron wire, and binds the position and correspond shutoff district 13, because shutoff district 13 does not have gas pocket 12, and intensity is bigger for other positions, admittedly can adopt great tie power to fix filter screen 2, further improves the fixed of filter screen 2 tip, increases the degree of difficulty that the granule invaded from the tip.

In this application shutoff district 13 and strain a 1 integrated into one piece, indicate promptly to strain the gas pocket 12 on the section of thick bamboo 1 and adopt stamping forming, in the stamping process directly reserve shutoff district 13 not punching press gas pocket 12 can, of course, for satisfying current production needs, reduce the replacement cost to existing filter, can adopt the mode of reforming transform to current filter core, directly at the current circumference medial extremity welding baffler that strains a section of thick bamboo (the gas pocket 12 is covered with on the circumference lateral wall), in order to reach the separation effect.

In order to improve the end sealing effect, the outer end faces of the upper sealing disc 10 and the lower sealing disc 11 in the embodiment are provided with annular sunken grooves 14 and are provided with end sealing rings 3 matched with the annular sunken grooves 14, the cross sections of the sealing rings 3 are circular, and compared with the sealing mode of a traditional rubber gasket, the sealing gasket has better recovery capability, longer service life and replacement sealing performance.

On the basis of the above, the present application provides a high efficiency filter, which mainly includes a casing 4, and a fluid filter element disposed in the casing 4, as shown in fig. 1, fig. 2 and fig. 7, the casing 4 is a hollow structure with an open top, and has a filter chamber 44 therein, the casing 4 has an inlet pipe 40 and an outlet pipe 41 disposed oppositely, wherein the inlet pipe 40 is communicated with the filter chamber 44, the top of the casing 4 has a cover plate 5 adapted to the top of the filter chamber 44, and the cover plate 5 is fixedly connected to the casing 4 by a bolt through a flange blind plate.

The middle part of the cover plate 5 is provided with an inner boss 50 which is adaptive to the diameter of the filter cartridge 1, the inner boss 50 extends into the filter cartridge 1, the upper sealing disc 10 is abutted against the cover plate 5 and is sealed by a corresponding end sealing ring 3, a bottom plate 43 is fixedly arranged below the filter cavity 44, the bottom plate 43 is parallel to the upper end surface of the shell 4 and is coaxially arranged with the shell 4, the bottom plate 43 is annular, the outer diameter of the bottom plate 43 is larger than or equal to that of the lower sealing disc 11, the inner diameter of the bottom plate is larger than or equal to that of the filter cartridge 1, the bottom plate 43 is communicated with the outlet pipe 41 through a switching elbow, the lower sealing disc 11 is abutted against the bottom plate 43, and the lower end of the filter cartridge 1 is sealed through the end sealing ring 3 at the lower part, so that the fuel gas entering the filter cavity 44 from the inlet pipe 40 enters the outlet pipe 41 only after being filtered by the filter screen 2 at the outer layer of the filter element, then enters the filter cartridge 1 through the gas ore 12, and finally enters the outlet pipe 41 from the lower end of the filter cartridge 1.

As shown in fig. 7, the housing 4 has an annular sinking platform 42 at the inner side of the upper end, and the cover plate 5 has an outer boss 51 abutting against the annular sinking platform 42. Further, a circumferential seal ring 6 is fitted around the outer boss 51 in the circumferential direction, and the circumferential seal ring 6 abuts against the inner wall of the housing 4. The matching structure of echelonment is favorable to improving the installation stability of apron 5, and cooperation circumference sealing washer 6 can further improve sealed effect.

Referring to fig. 6, in another embodiment, the cover plate 5 has an annular groove 52 for the upper sealing disc 10 to be inserted into, which is similar to the existing cover plate structure, and conventionally, a rubber gasket is installed in the annular groove 52, and the movable end fixing ring is leveled by the rubber gasket, while in this embodiment, no rubber gasket is installed, and in use, the annular upper sealing disc 10 is inserted into the annular groove, and the inner boss 50 is inserted into the filter cartridge 1, and cooperates with the circumferential sealing ring 6 and the end sealing ring 3 at the upper end, so that the sealing effect at the upper end of the filter cartridge 1 and the upper end of the housing 4 can be greatly improved.

Referring to the fluid filter element and the high efficiency filter shown in fig. 1 to 7, when in use, the filter screen 2 is only required to be wound on the circumferential outer side of the filter cartridge 1, the filter screen 2 is bound through the binding belt 7, then the filter screen is loaded into the filter cavity 44, the whole filter cavity is coaxially arranged with the filter cavity 44, the lower sealing disc 11 is abutted against the bottom plate 43, then the cover plate 5 is installed, the upper end of the filter cartridge 1 and the upper end of the shell 4 are sealed by the cover plate 5, and the filter cartridge 1 is pressed to increase the sealing performance between the lower sealing disc 11 and the bottom plate 43.

In the later stage use, no matter how to unpick and wash reinstallation filter screen 2, even the tip unevenness of filter screen 2 also can not influence the gesture of last sealed dish 10 and sealed dish 11 down, can improve like this and unpick and wash reinstallation efficiency, and go up sealed dish 10 and sealed dish 11 down to and can keep the face of one-to-one between apron 5 and the bottom plate 43 to paste mutually, can continuously keep better leakproofness.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (7)

1. A fluid filter cartridge comprising a filter cartridge (1) open at both ends, characterized in that: it has integrated into one piece's last sealed dish (10) and lower sealed dish (11) to strain a section of thick bamboo (1) both ends, and goes up the diameter of sealed dish (10) and lower sealed dish (11) and all is greater than the diameter of straining a section of thick bamboo (1), it has gas pocket (12) to distribute on the circumference lateral wall of straining a section of thick bamboo (1), the upper and lower both ends of straining a section of thick bamboo (1) all are equipped with shutoff district (13), shutoff district (13) length is D, strain a section of thick bamboo (1) and dispose filter screen (2), filter screen (2) are in order can dismantle the mode cladding in the circumference outside of straining a section of thick bamboo (1), the length of straining a section of thick bamboo (1) is L, the width of filter screen (2) is D, then L > D > (L-2D).

2. The fluid filter cartridge of claim 1, wherein: the outer end faces of the upper sealing disc (10) and the lower sealing disc (11) are provided with annular sunken grooves (14) and are provided with end sealing rings (3) matched with the annular sunken grooves (14).

3. A fluid filter cartridge according to claim 1 or 2, wherein: the plugging area (13) and the filter cartridge (1) are integrally formed.

4. A high efficiency filter comprising a housing (4), and a fluid filter cartridge as defined in any one of claims 1 to 3 disposed within the housing (4), the housing (4) having an inlet tube (40) and an outlet tube (41), characterized in that: the top of the shell (4) is provided with a cover plate (5) fixedly connected with the shell, the middle of the cover plate (5) is provided with an inner boss (50) matched with the diameter of the filter cartridge (1), the inner boss (50) extends into the filter cartridge (1), the upper sealing disc (10) is abutted to the cover plate (5) and sealed by a corresponding end sealing ring (3), and the lower end of the filter cartridge (1) is communicated with an outlet pipe (41).

5. The high efficiency filter of claim 4, wherein: the inner side of the upper end of the shell (4) is provided with an annular sinking platform (42), and the cover plate (5) is provided with an outer boss (51) which is abutted against the annular sinking platform (42).

6. The high efficiency filter of claim 5, wherein: the circumference outside cover of outer boss (51) is equipped with circumference sealing washer (6), circumference sealing washer (6) offset with the inner wall of casing (4).

7. A high efficiency filter as claimed in any one of claims 4 to 6, wherein: the cover plate (5) is provided with an annular embedding groove (52) for embedding the upper sealing disc (10).

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