CN220424688U - Self-cleaning filter - Google Patents

Abstract

The utility model belongs to the technical field of filters, and discloses a self-cleaning filter which comprises a shell, a filter cartridge, a collecting cylinder, a scraper device and a power piece, wherein the shell is provided with an emulsion inlet and a filtrate outlet; the filter cartridge is fixedly arranged in the shell, the top outer wall of the filter cartridge is in sealing connection with the top inner wall of the shell, the bottom outer wall of the filter cartridge is in sealing connection with the bottom inner wall of the shell, the emulsion inlet is positioned above the filter cartridge, the filtrate outlet is positioned on one side of the filter cartridge, the emulsion is injected into the filter cartridge from the emulsion inlet, and the emulsion filtered by the filter cartridge is discharged from the filtrate outlet; the collecting cylinder is fixedly arranged at the bottom of the shell and is used for collecting filter residues; the scraper device activity sets up in the inside of cartridge filter, and scraper device is used for striking off the impurity that adheres to cartridge filter inner wall. The self-cleaning filter can improve the installation sealing performance of the filter cartridge and reduce or even avoid the condition of liquid leakage.

Description

Self-cleaning filter

Technical Field

The utility model relates to the technical field of filters, in particular to a self-cleaning filter.

Background

The self-cleaning filter utilizes the filter screen inside the filter to intercept solid impurities and particulate matters in water, the prior application number is CN202121101028.6 for example, the application name is a self-cleaning filter, a filter screen is arranged inside a cylinder body, a stainless steel brush and a scraper plate assembly are arranged outside the cylinder body, the scraper in the scraper plate assembly scrapes the impurities which are not cleaned by water flow on the filter screen, the impurities which cannot be removed are brushed off by the stainless steel brush, but the prior self-cleaning filter is easy to have liquid leakage, the filter screen is unstable to install, and gaps are easy to be generated between the filter screen and the cylinder body to leak liquid particularly when the filter screen is subjected to the acting force of the stainless steel brush and the scraper.

Therefore, there is a need for a self-cleaning filter that improves the installation sealing performance of the filter cartridge, and reduces or even avoids the occurrence of liquid leakage.

Disclosure of Invention

One object of the present utility model is to: the self-cleaning filter is provided, the installation sealing performance of the filter cartridge is improved, and the condition of liquid leakage is reduced or even avoided.

To achieve the purpose, the utility model adopts the following technical scheme:

a self-cleaning filter comprising:

the shell is provided with an emulsion inlet and a filtrate outlet;

the emulsion filter comprises a shell, a filter cartridge, an emulsion inlet, an emulsion outlet and an emulsion outlet, wherein the shell is fixedly arranged in the shell, the top outer wall of the filter cartridge is in sealing connection with the top inner wall of the shell, the bottom outer wall of the filter cartridge is in sealing connection with the bottom inner wall of the shell, the emulsion inlet is positioned above the filter cartridge, the filtrate outlet is positioned at one side of the filter cartridge, the emulsion is injected into the filter cartridge from the emulsion inlet, and the emulsion filtered by the filter cartridge is discharged from the filtrate outlet;

the collecting cylinder is fixedly arranged at the bottom of the shell and is used for collecting filter residues;

the scraper device is movably arranged in the filter cartridge and is used for scraping impurities adhered to the inner wall of the filter cartridge;

the power piece is arranged on the shell, and the output end of the power piece is in transmission connection with the scraper device.

As an optional technical scheme, a first bearing ring table is arranged on the inner wall of the top of the shell, a second bearing ring table is arranged on the outer wall of the top of the filter cartridge, and a first sealing gasket is arranged between the first bearing ring table and the second bearing ring table in a sealing manner;

the bottom inner wall of casing is provided with the third carrier ring platform, the bottom outer wall of cartridge filter is provided with the fourth carrier ring platform, the third carrier ring platform with seal is provided with the second sealing pad between the fourth carrier ring platform.

As an optional technical solution, the first carrying ring platform and the second carrying ring platform and/or the third carrying ring platform and the fourth carrying ring platform are fixedly connected by a first fastener.

As an optional technical solution, the outer diameter of the second bearing ring platform is smaller than the inner diameter of the third bearing ring platform, and the filter cartridge is installed in the inner cavity of the housing from the bottom of the housing.

As an optional technical scheme, the top terminal surface and the bottom terminal surface of cartridge filter all fretwork setting.

As an optional technical scheme, the collecting cylinder is of an inverted cone structure, a slag discharging port is formed in the bottom of the collecting cylinder, and an overhaul port is formed in the side wall of the collecting cylinder.

As an optional technical scheme, a third sealing gasket is arranged between the shell and the collecting cylinder in a sealing way.

As an optional technical scheme, the top of casing is fixed and is provided with the gland, the gland with seal between the casing is provided with the fourth sealing gasket, power spare fixed mounting in on the gland.

As an optional technical scheme, the gland is provided with a pressure measuring port, and the pressure measuring port is communicated with the inner cavity of the shell.

As an optional technical scheme, the power piece is the rotating electrical machines, scraper device includes rotation axis, support and scraper, the one end of rotation axis with the output shaft transmission of rotating electrical machines is connected, the other end of rotation axis stretches into the inside of cartridge filter, support mounting in the rotation axis stretches into the one end of cartridge filter, the scraper vertical set up in the outside of support.

The utility model has the beneficial effects that:

the utility model provides a self-cleaning filter, when the self-cleaning filter operates, a power piece drives a scraper device, the scraper device scrapes impurities adhered to the inner wall of a filter cartridge, the filtering capability of the filter cartridge is ensured, impurity filter residues in the filter cartridge fall into a collecting cylinder and are collected by the collecting cylinder, and as the top outer wall of the filter cartridge is in sealing connection with the top inner wall of a shell and the bottom outer wall of the filter cartridge is in sealing connection with the bottom inner wall of the shell, emulsion which is not filtered does not leak to a filtrate outlet, and the emulsion which is not filtered is prevented from being discharged from the filtrate outlet after being mixed with the filtered emulsion.

Drawings

The utility model is described in further detail below with reference to the drawings and examples;

FIG. 1 is a cross-sectional view of a self-cleaning filter according to an embodiment;

FIG. 2 is a cross-sectional view of a self-cleaning filter (first fastener through gland) of another construction according to embodiments;

FIG. 3 is a cross-sectional view of a housing according to an embodiment;

fig. 4 is a cross-sectional view of a filter cartridge according to an embodiment;

fig. 5 is a schematic structural view of the scraper device and the power member according to the embodiment.

In the figure:

1. a housing; 101. an emulsion inlet; 102. a filtrate outlet; 103. a first load ring stage; 104. a third carrier ring stage;

2. a filter cartridge; 21. The second bearing ring table; 22. A fourth load ring stage;

3. a collection cylinder; 31. A slag discharge port; 32. An access opening;

4. a scraper device; 41. a rotation shaft; 42. a bracket; 43. a scraper;

5. a power member;

6. a first gasket;

7. a second gasket;

8. a first fastener;

9. a third gasket;

10. a gland; 1001. a pressure measuring port;

11. and a fourth gasket.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

The aqueous stearate emulsion comprises aqueous zinc stearate emulsion and aqueous calcium stearate emulsion, the aqueous stearate emulsion has higher viscosity and higher filtering precision requirement, a larger pressure difference is formed during filtering, the existing self-cleaning filter is easy to cause the connection between the filter cylinder and the shell to be not tight, liquid leakage is caused, impurities exist in filtrate, and the quality of products is affected.

To solve the above problems, as shown in fig. 1 to 5, the present embodiment provides a self-cleaning filter comprising a housing 1, a filter cartridge 2, a collection cylinder 3, a scraper device 4, and a power member 5, the housing 1 being provided with an emulsion inlet 101 and a filtrate outlet 102; the filter cartridge 2 is fixedly arranged in the shell 1, the top outer wall of the filter cartridge 2 is in sealing connection with the top inner wall of the shell 1, the bottom outer wall of the filter cartridge 2 is in sealing connection with the bottom inner wall of the shell 1, the emulsion inlet 101 is positioned above the filter cartridge 2, the filtrate outlet 102 is positioned at one side of the filter cartridge 2, emulsion is injected into the filter cartridge 2 from the emulsion inlet 101, and the emulsion filtered by the filter cartridge 2 is discharged from the filtrate outlet 102; the collecting cylinder 3 is fixedly arranged at the bottom of the shell 1, and the collecting cylinder 3 is used for collecting filter residues; the scraper device 4 is movably arranged in the filter cartridge 2, and the scraper device 4 is used for scraping impurities adhered to the inner wall of the filter cartridge 2; the power piece 5 is arranged on the shell 1, and the output end of the power piece 5 is in transmission connection with the scraper device 4.

When the self-cleaning filter operates, the power piece 5 drives the scraper device 4, the scraper device 4 scrapes off impurities adhered to the inner wall of the filter cartridge 2, the filtering capability of the filter cartridge 2 is guaranteed, impurity filter residues inside the filter cartridge 2 fall into the collecting cylinder 3 and are collected by the collecting cylinder 3, and due to the sealing connection between the top outer wall of the filter cartridge 2 and the top inner wall of the shell 1 and the sealing connection between the bottom outer wall of the filter cartridge 2 and the bottom inner wall of the shell 1, emulsion which is not filtered yet cannot leak to the filtrate outlet 102, and the phenomenon that the unfiltered emulsion and the filtered emulsion are discharged from the filtrate outlet 102 after being mixed is avoided.

Emulsion is injected into the filter cartridge 2 from the emulsion inlet 101, a part of emulsion in the filter cartridge 2 is filtered to a space between the outer wall of the filter cartridge 2 and the inner wall of the shell 1, and finally discharged from the filtrate outlet 102, a part of emulsion in the filter cartridge 2 enters the collecting cylinder 3, at this time, the slag discharging opening 31 and the overhaul opening 32 of the collecting cylinder 3 are plugged, the emulsion is stored in the collecting cylinder 3, the self-cleaning filter continuously operates until the concentration of the emulsion in the filter cartridge 2 reaches a preset value, at this time, the slag discharging opening 31 of the collecting cylinder 3 is opened, and high-concentration emulsion and impurity filter residues are discharged from the collecting cylinder 3, so that the high-concentration emulsion and impurity in the collecting cylinder 3 cannot be discharged from the filtrate outlet 102 due to the sealing connection between the outer wall of the bottom of the filter cartridge 2 and the inner wall of the bottom of the shell 1.

Optionally, a first bearing ring table 103 is arranged on the top inner wall of the shell 1, a second bearing ring table 21 is arranged on the top outer wall of the filter cartridge 2, a first sealing gasket 6 is arranged between the first bearing ring table 103 and the second bearing ring table 21 in a sealing way, a gap between the first bearing ring table 103 and the second bearing ring table 21 is sealed by the first sealing gasket 6, and emulsion in the filter cartridge 2 is prevented from directly entering a filtrate outlet 102 from the gap between the top outer wall of the filter cartridge 2 and the top inner wall of the shell 1 without being filtered; the bottom inner wall of the shell 1 is provided with a third bearing ring table 104, the bottom outer wall of the filter cartridge 2 is provided with a fourth bearing ring table 22, a second sealing gasket 7 is arranged between the third bearing ring table 104 and the fourth bearing ring table 22 in a sealing way, a gap between the third bearing ring table 104 and the fourth bearing ring table 22 is sealed by the second sealing gasket 7, and emulsion in the filter cartridge 2 is prevented from directly entering the filtrate outlet 102 from the gap between the bottom outer wall of the filter cartridge 2 and the bottom inner wall of the shell 1 without being filtered.

Optionally, the first bearing ring stage 103 and the second bearing ring stage 21 and/or the third bearing ring stage 104 and the fourth bearing ring stage 22 are fixedly connected by the first fastener 8.

In this embodiment, the first bearing ring stage 103 is fixedly connected to the second bearing ring stage 21 through the first fastener 8, the first fastener 8 is a bolt, and in other embodiments, the third bearing ring stage 104 is fixedly connected to the fourth bearing ring stage 22 through the first fastener 8.

In this embodiment, the outer diameter of the second carrier ring stage 21 is smaller than the inner diameter of the third carrier ring stage 104, and the filter cartridge 2 is fitted into the inner cavity of the housing 1 from the bottom of the housing 1.

The bottom of the housing 1 is provided with the gland 10 and the power piece 5, and the output shaft of the power piece 5 is connected with the scraper device 4, so that the filter cartridge 2 is inconvenient to be loaded into the inner cavity of the housing 1 from the top of the housing 1, and therefore, in this embodiment, the outer diameter of the second bearing ring table 21 is set to a first preset value, and the inner diameter of the third bearing ring table 104 is set to a second preset value, and the first preset value is smaller than the second preset value, so that the filter cartridge 2 is convenient to be loaded into the inner cavity of the housing 1 from the bottom of the housing 1.

In this embodiment, after the filter cartridge 2 is installed in the inner cavity of the housing 1, the second bearing ring stage 21 is located below the first bearing ring stage 103, the outer diameter of the second bearing ring stage 21 is larger than the inner diameter of the first bearing ring stage 103, and after the second bearing ring stage 21 abuts against the bottom surface of the first bearing ring stage 103, the first bearing ring stage 103 and the second bearing ring stage 21 are fixedly connected by adopting the first fastener 8.

In this embodiment, after the filter cartridge 2 is installed in the inner cavity of the housing 1, the fourth carrying ring table 22 is located below the third carrying ring table 104, the outer diameter of the fourth carrying ring table 22 is larger than the inner diameter of the third carrying ring table 104, the fourth carrying ring table 22 abuts against the bottom surface of the third carrying ring table 104, and since the first carrying ring table 103 and the second carrying ring table 21 are provided with the first sealing gasket 6, and the second sealing gasket 7 is provided between the third carrying ring table 104 and the fourth carrying ring table 22, installation errors and production errors, for example, after a new filter cartridge 2 is replaced, the distance value between the second carrying ring table 21 and the fourth carrying ring table 22 in the new filter cartridge 2 is changed, and if the first sealing gasket 6 and the second sealing gasket 7 are not adopted to eliminate errors, a liquid leakage situation will occur.

Optionally, the top end face and the bottom end face of the filter cartridge 2 are hollow out, so that the filter cartridge 2 and the scraper device 4 are separated.

Optionally, the collecting cylinder 3 is of an inverted cone structure, a slag discharging port 31 is formed in the bottom of the collecting cylinder 3, and an overhaul port 32 is formed in the side wall of the collecting cylinder 3.

The collection cylinder 3 with the inverted cone-shaped structure is beneficial to discharging impurity filter residues from the slag discharge port 31; the access opening 32 is convenient for an operator to extend his hands into the interior of the collection cylinder 3 for access or to pull out impurity residues adhered to the inner wall of the collection cylinder 3 from the slag discharge opening 31.

Optionally, a third sealing gasket 9 is arranged between the shell 1 and the collecting cylinder 3 in a sealing way so as to ensure the sealing performance between the shell 1 and the collecting cylinder 3.

Optionally, the shell 1 is fixedly connected with the collecting cylinder 3 through a second fastening piece, and the second fastening piece is a bolt.

Optionally, a gland 10 is fixedly arranged at the top of the shell 1, a fourth sealing gasket 11 is arranged between the gland 10 and the shell 1 in a sealing way, so that the tightness between the gland 10 and the shell 1 is ensured, and the power piece 5 is fixedly arranged on the gland 10.

Optionally, the gland 10 is fixedly connected with the shell 1 through a third fastener, and the third fastener is a bolt. The doctor apparatus 4 is removed from the housing 1 after opening the gland 10.

In this embodiment, the first fastener 8 fixedly connecting the first carrier ring stage 103 and the second carrier ring stage 21 extends upwardly through the gland 10 to facilitate operation of the first fastener 8 by an operator.

Optionally, the gland 10 is provided with a pressure measuring port 1001, the pressure measuring port 1001 is communicated with the inner cavity of the shell 1, and the concentration testing device stretches into the inner cavity of the shell 1 from the pressure measuring port 1001 to detect the concentration of the emulsion.

Optionally, the power part 5 is a rotating motor, the scraper device 4 includes a rotating shaft 41, a bracket 42 and a scraper 43, one end of the rotating shaft 41 is in transmission connection with an output shaft of the rotating motor, the other end of the rotating shaft 41 stretches into the filter cartridge 2, the bracket 42 is mounted at one end of the rotating shaft 41 stretching into the filter cartridge 2, and the scraper 43 is vertically arranged at the outer side of the bracket 42. The scraper 43 can scrape off the impurity adhered to the inner wall of the filter cartridge 2, and the support 42 can support the scraper 43, and simultaneously, the support 42 and the scraper 43 can stir the emulsion inside the filter cartridge 2 for the filtration speed.

In other embodiments, the power member 5 is a cylinder, the scraper 43 is of an annular structure, the cylinder drives the scraper device 4 in a vertical direction in a reciprocating manner, and the scraper 43 scrapes impurity residues on the inner wall of the filter cartridge 2 in the vertical direction.

Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. Self-cleaning filter, its characterized in that includes:

a housing (1), the housing (1) being provided with an emulsion inlet (101) and a filtrate outlet (102);

the filter cartridge (2) is fixedly arranged in the shell (1), the top outer wall of the filter cartridge (2) is in sealing connection with the top inner wall of the shell (1), the bottom outer wall of the filter cartridge (2) is in sealing connection with the bottom inner wall of the shell (1), the emulsion inlet (101) is positioned above the filter cartridge (2), the filtrate outlet (102) is positioned on one side of the filter cartridge (2), emulsion is injected into the filter cartridge (2) from the emulsion inlet (101), and the emulsion filtered by the filter cartridge (2) is discharged from the filtrate outlet (102);

the collecting cylinder (3) is fixedly arranged at the bottom of the shell (1), and the collecting cylinder (3) is used for collecting filter residues;

the scraper device (4) is movably arranged in the filter cartridge (2), and the scraper device (4) is used for scraping impurities adhered to the inner wall of the filter cartridge (2);

the power piece (5) is arranged on the shell (1), and the output end of the power piece (5) is in transmission connection with the scraper device (4).

2. The self-cleaning filter according to claim 1, characterized in that a first bearing ring table (103) is arranged on the top inner wall of the shell (1), a second bearing ring table (21) is arranged on the top outer wall of the filter cartridge (2), and a first sealing gasket (6) is arranged between the first bearing ring table (103) and the second bearing ring table (21) in a sealing manner;

the bottom inner wall of casing (1) is provided with third carrier ring platform (104), the bottom outer wall of cartridge filter (2) is provided with fourth carrier ring platform (22), third carrier ring platform (104) with seal between fourth carrier ring platform (22) is provided with second sealed pad (7).

3. Self-cleaning filter according to claim 2, characterized in that the first carrier ring stage (103) and the second carrier ring stage (21) and/or the third carrier ring stage (104) and the fourth carrier ring stage (22) are fixedly connected by means of a first fastening element (8).

4. A self-cleaning filter according to claim 3, wherein the outer diameter of the second carrier ring stage (21) is smaller than the inner diameter of the third carrier ring stage (104), and the filter cartridge (2) is fitted into the inner cavity of the housing (1) from the bottom of the housing (1).

5. Self-cleaning filter according to claim 1, characterized in that the top and bottom end surfaces of the filter cartridge (2) are hollowed out.

6. Self-cleaning filter according to claim 1, characterized in that the collection cylinder (3) is of an inverted cone-shaped structure, the bottom of the collection cylinder (3) is provided with a slag discharge port (31), and the side wall of the collection cylinder (3) is provided with an access port (32).

7. Self-cleaning filter according to claim 1, characterized in that a third gasket (9) is provided between the housing (1) and the collecting cylinder (3) in a sealing manner.

8. Self-cleaning filter according to claim 1, characterized in that the top of the housing (1) is fixedly provided with a gland (10), a fourth gasket (11) is arranged between the gland (10) and the housing (1) in a sealing manner, and the power element (5) is fixedly mounted on the gland (10).

9. The self-cleaning filter according to claim 8, wherein the gland (10) is provided with a pressure measuring port (1001), and the pressure measuring port (1001) is communicated with the inner cavity of the shell (1).

10. The self-cleaning filter according to claim 1, wherein the power member (5) is a rotating motor, the scraper device (4) comprises a rotating shaft (41), a support (42) and a scraper (43), one end of the rotating shaft (41) is in transmission connection with an output shaft of the rotating motor, the other end of the rotating shaft (41) stretches into the filter cartridge (2), the support (42) is mounted on one end of the rotating shaft (41) stretching into the filter cartridge (2), and the scraper (43) is vertically arranged on the outer side of the support (42).