CN218740559U - Integrated multistage filtering device - Google Patents

Abstract

The utility model provides an integrated multistage filtering device, which comprises a filter bag, a cover body and a first shell, wherein the filter bag is arranged in the first shell, the cover body is fixed at the opening end of the first shell, and a fluid outlet is arranged on the first shell; further comprising: the second shell is fixed on the outer side of the first shell, and the fluid inlet and the first sewage outlet are respectively arranged on the second shell; the first bearing piece is annular and arranged on the cover body; the filter element is fixed on the first bearing piece and is positioned in the second shell; the fluid sequentially passes through the fluid inlet, the interior of the second shell, the filter element, the interior of the cover body and the filter bag; a first seal is disposed between the first carrier and the open end of the second housing, and a second seal is disposed between the cover and the open end of the first housing. The utility model has the advantages of convenient filter bag replacement, compact structure and the like.

Description

Integrated multistage filtering device

Technical Field

The utility model relates to a filter, in particular to integration multistage filter equipment.

Background

Most of the existing integrated filters are two single-stage filters connected in series longitudinally, such as patent No. CN209333307: arrange the one-level filter casing in the second grade and filter casing top, all adopt the quick-connect clamp to seal in order to realize the integration between bottom base and second grade filter casing, one-level filter casing and the second grade filter casing, but this junction sealing performance fails to guarantee, easily causes liquid to reveal, and does not consider the blowdown, and the impurity that the one-level filter screen deposits is thick, easily blocks up, and life shortens, and the change frequency is high to make the cost-push. In addition, the filter bag belongs to wearing parts, and the filtering burden is increased and even the filter bag is damaged due to overlarge pressure difference between the inside and the outside.

And the bag filter has the working principle that: inside liquid enters the water filter from going into the liquid mouth, through filter bag and support basket outflow liquid outlet, filterable impurity is held back in the filter bag, when filter bag pressure differential reached the limit, in time changed the filter bag. If the replacement frequency is high, the quick replacement of the filter bag is particularly important.

The traditional positioning mode of the filter bag of the conventional bag filter generally adopts a bolt and pressure plate combination, a pressure plate, a bolt, a handle and a limiting block are matched, screwed and fixed, the pressure plate is arranged above the filter bag, the bolt penetrates through a hole of the handle, the handle is rotated into the inner side of the limiting block, and the bolt is screwed to realize positioning.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies in the prior art schemes, the utility model provides an integrated multistage filtering device.

The utility model aims at realizing through the following technical scheme:

the integrated multistage filtering device comprises a filter bag, a cover body and a first shell, wherein the filter bag is arranged in the first shell, the cover body is fixed at the opening end of the first shell, and a fluid outlet is arranged on the first shell; the integrated multistage filtration device further comprises:

the second shell is fixed on the outer side of the first shell and is integrally arranged with the first shell, and the fluid inlet and the first sewage discharge port are respectively arranged on the second shell; the cover body is used for closing the opening end of the second shell;

the first bearing piece is annular and is arranged on the cover body; the filter element is fixed on the first bearing piece and is positioned in the second shell; the fluid sequentially passes through the fluid inlet, the interior of the second shell, the filter element, the interior of the cover body and the filter bag;

a first seal disposed between the first carrier and the open end of the second housing, and a second seal disposed between the lid and the open end of the first housing.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the structure is compact and the volume is small;

the second shell is fixed on the first shell, and an integrated filter shell structure is adopted, so that a connecting channel between a primary filter shell (the second shell) and a secondary filter shell (the first shell) is omitted, the structure is compact, the size of the filter device is effectively reduced, the installation and maintenance are more convenient, and the filter device is particularly suitable for places with limited installation space;

2. low pressure drop;

a flow guide unit is arranged in the first shell, flow guide holes (forming a fluid channel) are formed in the side wall of the flow guide unit, so that liquid is divided and flows into the collecting channel from each through hole in the side wall, and the pressure at the inlet of the liquid outlet, namely the pressure outside the filter bag, is effectively relieved, so that the pressure difference between the inside and the outside of the filter bag is reduced, the damage to the filter bag is avoided, the service life of the filter bag is prolonged, and the cost is reduced;

3. the filter bag is convenient and quick to replace;

the first annular piece is attached to and pressed against the filter bag (on the upper side of the bearing piece), the handle is rotated in the forward direction, and the handle is blocked and limited by the blocking piece, so that the first annular piece and the second annular piece are quickly positioned, the purpose of pressing the filter bag is achieved, the process is simple, the filter bag is convenient to clean and replace, and the working efficiency is improved;

4. the structure is simple;

bolts in the traditional positioning mode are not needed, and the handle does not need to be provided with bolt holes, so that the handle is smaller, the number of parts is less, and the material cost is lower.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: the drawings are only for the purpose of illustrating the technical solutions of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 is a schematic structural view of an integrated multistage filtration device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of an integrated multi-stage filtration apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a flow guide unit according to an embodiment of the present invention;

fig. 4 is a schematic partial structural view of an integrated multistage filtration apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of a handle and a first ring member according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a blocking member according to an embodiment of the present invention;

fig. 7 is a partial schematic structure diagram of an integrated multistage filtering device according to an embodiment of the present invention.

Detailed Description

Fig. 1-7 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For the purpose of teaching the invention, certain conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Example 1:

fig. 1-2 show a schematic structural diagram of an integrated multistage filtration device according to an embodiment of the present invention, as shown in fig. 1-2, the integrated multistage filtration device includes:

a filter bag 41, a cover body 11 and a first shell body 21, wherein the filter bag 41 is arranged in the first shell body 21, the cover body 11 is fixed at the opening end of the first shell body 21, and a fluid outlet 22 is arranged on the first shell body;

a second casing 24, the second casing 24 being fixed to the outside of the first casing 21 and being integrally provided with the first casing 21, the fluid inlet 12 and the first drain port 13 being provided in the second casing 24, respectively; the cover 11 is used for closing the open ends of the second shell 24 and the first shell 21;

a first bearing member 25 and a filter element 44, wherein the first bearing member 25 is annular and is arranged on the cover body 11; the filter element 44 is fixed on the first bearing piece 25 and is positioned in the second shell 24; the fluid passes through the fluid inlet 12, the interior of the second housing 24, the filter element 44, the interior of the cover 11 and the filter bag 41 in sequence;

a first seal member 83 and a second seal member 84, the first seal member 83 being disposed between the first carrier 25 and the open end of the second housing 24, the second seal member 84 being disposed between the cover 11 and the open end of the first housing 21.

In order to reduce the pressure drop to protect the filter bags, further, the integrated multistage filtering device further comprises:

the flow guiding unit 90, as shown in fig. 3, has a collecting channel and a fluid channel 93 in the flow guiding unit 90, and the fluid between the filter bag 41 and the first housing 21 flows through the fluid channel 93, the collecting channel and the fluid outlet 22 in sequence.

In order to ensure the filtering effect, the filter insert 44 is further fixedly connected to the first bearing element 25 by means of a thread and remains sealed.

In order to facilitate replacement of the filter bag 41, further, the integrated multistage filtering device further includes:

a second carrier 50 and a stopper 54, as shown in fig. 4, the second carrier 50 having a ring shape and being disposed on an inner wall of the first housing 21; the blocking member 54 is disposed on the carrier 50, and as shown in fig. 6, has a first portion 56 and a second portion 55 connected with each other, the first portion 56 extends along a direction parallel to the central axis of the carrier 50, and the included angle between the second portion 55 and the first portion 56 is a right angle or an acute angle;

a support member 42, the support member 42 being cylindrical and having a plurality of through holes, one end being an open end and the other end being a support end; the open end has an outer extension 43 extending in a radial direction of the support 42, the outer diameter of the outer extension 43 being larger than the inner diameter of the carrier 50; the second carrier 50 is used for carrying the extension portion 43;

a third seal 81, such as an O-ring, said third seal 81 being disposed between said second carrier 50 and said outer extension 43;

a first ring member 71 and a handle 61, as shown in fig. 5, the first ring member 71 being disposed on an upper side of the support member 42, and a lower side of the handle 61 being connected to the first ring member 71; both ends of the handle 61 are respectively blocked by the first portions 56 and positioned at the lower side of the second portion 55 when the handle 61 is rotated in the forward direction, and the handle 61 is separated from the blocking member 54 when the handle 61 is rotated in the reverse direction.

To achieve rapid positioning, further, as shown in fig. 4-5, the integrated multi-stage filtration device further comprises:

and a second annular member 72, wherein the second annular member 72 is disposed inside the supporting member 61, and the upper end of the second annular member is connected to the first annular member 71.

In order to improve the sealing performance, as shown in fig. 4, the integrated multistage filtering apparatus further includes:

a fourth seal 82, said fourth seal 82 being disposed between said first ring 71 and said outer extension 43.

In order to achieve a quick positioning, further, the second annular element 72 has an outer diameter equal to the inner diameter of the filter bag 41.

In order to reduce the volume, further, as shown in fig. 4, the second bearing member 50 includes a first horizontal portion 51, a vertical portion 52 and a second horizontal portion 53 which are arranged in sequence from inside to outside, and the second horizontal portion 53 is connected to the inner wall of the first housing 21; the second horizontal portion 53, the vertical portion 52, and the first horizontal portion 51 are disposed in this order from top to bottom.

In order to reduce the structural complexity, further, as shown in fig. 5, the integrated multistage filtering device further includes:

the handle 61 is connected to the upper ends of the first connecting piece 91 and the second connecting piece 92, and the lower ends of the first connecting piece 91 and the second connecting piece 92 are fixed on the first annular piece 71.

To fix the handle, further, as shown in fig. 6, the distance between the lower side of the second portion 55 and the second carrier 50 is first decreased and then increased.

Example 2:

according to the utility model discloses embodiment 1's integrated multistage filter equipment's application example.

In this application example, as shown in fig. 1-2, the integrated multistage filtration device includes:

the second shell 24 is fixed on the outer side of the first shell 21, the cover 11 closes the open ends of the first shell 21 and the second shell 24, and the inner wall of the cover 11 is a convex curved surface; the fluid inlet 12 is arranged on the second shell 24, the first sewage draining outlet 13 is arranged at the bottom of the second shell 24, and the fluid outlet 22 and the second sewage draining outlet 23 are respectively arranged at the lower part of the first shell 21; the cover 11 comprises a portion 16 whose inner wall is convex and a horizontal portion 17, the horizontal portion 17 having a first through hole corresponding to the open end of the first casing 21 and a second through hole corresponding to the open end of the second casing 24,

as shown in fig. 3, the guide unit 90 is disposed in the first housing 21 at the fluid outlet 22; the flow guide unit 90 is internally provided with a collection channel and a fluid channel 93, and the fluid between the filter bag 41 and the first shell 21 sequentially flows through the fluid channel 93, the collection channel and the fluid outlet 22;

as shown in fig. 4, the second bearing member 50 is circular and includes a first horizontal portion 51, a vertical portion 52 and a second horizontal portion 53, which are sequentially arranged from inside to outside, and the second horizontal portion 53 is connected to the inner wall of the first housing 21; the second horizontal portion 53, the vertical portion 52, and the first horizontal portion 51 are sequentially disposed from top to bottom;

a blocking member 54 is provided on the second horizontal portion 53 of the second load bearing member 50, having a first portion 56 and a second portion 55 connected, the first portion 56 extending in a direction parallel to the central axis of the second load bearing member 50, the second portion 55 being at a right angle to the first portion 56; as shown in fig. 6, the lower side of the second part 55 has an inclined section 57, a horizontal section 58 and a groove 59, i.e. the distance between the lower side and the second horizontal section 53 of the second carrier 50 becomes smaller, constant, larger and smaller in turn;

the supporting member 42 is cylindrical and has a plurality of through holes, one end of which is an open end and the other end of which is a supporting end; the cover open end has an outer extension 43 extending in a radial direction of said support 42, said outer extension 43 having an outer diameter larger than an inner diameter of said second carrier 50; the second carrier 50 carries the extension 43; the filter bag 41 is arranged inside the support 42 and on the upper side of the extension 43;

a third seal 81 in the form of an O-ring, the third seal 81 being disposed between the second carrier 50 and the outer extension 43;

a horizontally arranged first ring-shaped member 71 is arranged on the upper side of the supporting member 42, as shown in fig. 5, the handle 61 is parallel to the diameter of the first ring-shaped member 71, and the lower side of the handle 61 is connected with the first ring-shaped member 71; when the handle 61 is rotated in the forward direction, both ends of the handle 61 are blocked by the first portions 56, respectively, and are positioned at the lower side of the second portion 55, specifically, in the groove 59 formed at the distance-enlarged portion, and when the handle 61 is rotated in the reverse direction, the handle 61 is disengaged from the blocking member 54;

a second ring-shaped member 72 vertically arranged, the second ring-shaped member 72 being disposed inside the support member 42 and the filter bag 41, the upper end of the second ring-shaped member being connected to the first ring-shaped member 71, the second ring-shaped member 72 having an outer diameter equal to the inner diameter of the filter bag 41;

a fourth sealing member 82 which is an O-ring, the fourth sealing member 82 being disposed between the first ring member 71 and the filter bag 41 on the upper side of the outer extension portion 43;

as shown in fig. 4, the first connector 91 and the second connector 92 have upper ends connected to the handle 61 and lower ends fixed to the first ring member 71.

The working mode of the integrated multistage filtering device of the embodiment is as follows:

and (3) an installation stage: the filter element 44 is fixed to the first bearing element 25 by means of a screw thread and remains sealed;

placing the support 42 on the first horizontal portion 51 of the second carrier 50 with the third seal 81 between the outer extension 43 and the first horizontal portion 51;

the operator holds the handle 61, the second ring 72 enters the support 42 and inside the filter bag 41, and the fourth seal 82 is between the first ring 71 and the filter bag 41 on the upper side of the extension 43;

the handle 61 is rotated forward, so that two ends of the handle 61 are respectively positioned at the lower sides of the second parts 55 of the blocking pieces 54, then the handle 61 is rotated forward downwards, the upper side of the handle 61 sequentially passes through the inclined section 57 and the horizontal section 58, finally enters the groove 59 and is blocked by the first parts 56, so that two ends of the handle 61 are respectively clamped at the lower sides of the second parts, and a fixing function is realized; meanwhile, the third sealing member 81 and the fourth sealing member 82 are pressed, and a sealing function is achieved;

the cover body 11 is fixed on the shell body 21 through bolts and nuts, the first sealing member 83 surrounds the open end of the second shell body 24 and is positioned between the horizontal part 17 and the open end of the second shell body 24 to realize sealing, the second sealing member 84 surrounds the open end of the first shell body 21 and is positioned between the horizontal part 17 and the open end of the first shell body 21 to realize sealing, so that the interiors of the first shell body 21 and the second shell body 24 can only be communicated through the interior of the cover body 11, and fluid sequentially passes through the filter element and the filter bag to achieve the function of secondary filtration;

the working stage is as follows: the liquid enters the second shell 24 from the fluid inlet 12, then passes through the filter element, enters the cover body 11, then enters the filter bag 41, passes through the through hole of the support member 42, enters the space between the support member 42 and the first shell 21, enters the flow guide unit, and finally is discharged from the fluid outlet 22, so that the multi-stage filtering function is realized;

and (3) disassembling: opening the cover 11, and removing the filter element 44 from the first bearing member 25 for maintenance or replacement;

pressing down the handle 61 and rotating in reverse so that both ends of the handle 61 are disengaged from the lower sides of the second portions 55, respectively;

moving upward to take out the handle 61 and the first ring member 71;

the filter bag 41 is removed and replaced.

Example 3:

according to the utility model discloses embodiment 1's integrated multistage filter's application example, different with embodiment 2 is:

as shown in fig. 7, the underside of the second portion of the stop 54 is disposed horizontally, without undulations;

a rotation stopping screw 18 is arranged below a horizontal part 17 of the cover body 11, a rubber head 19 is fixed at the bottom end of the rotation stopping screw 18, and the rubber head 19 abuts against the handle 61 to prevent rotation.

In the horizontal direction, the handle 61 is blocked by the first portion of the blocking member 54, and in the vertical direction, the handle 61 is pressed by the rubber head 19, effectively preventing the movement of the handle 61, ensuring the stability of the secondary filtration.

Claims (10)

1. The integrated multi-stage filtering device comprises a filter bag, a cover body and a first shell, wherein the filter bag is arranged in the first shell, the cover body is fixed at the opening end of the first shell, and a fluid outlet is arranged on the first shell; it is characterized in that the integrated multistage filtering device further comprises:

the second shell is fixed on the outer side of the first shell and is integrally arranged with the first shell, and the fluid inlet and the first sewage discharge port are respectively arranged on the second shell; the cover body is used for closing the opening end of the second shell;

the first bearing piece is annular and is arranged on the cover body; the filter element is fixed on the first bearing piece and is positioned in the second shell; the fluid sequentially passes through the fluid inlet, the interior of the second shell, the filter element, the interior of the cover body and the filter bag;

a first seal disposed between the first carrier and the open end of the second housing, and a second seal disposed between the cover and the open end of the first housing.

2. The integrated multi-stage filtration device of claim 1, further comprising:

the flow guide unit is internally provided with a collection channel and a fluid channel, and fluid between the filter bag and the first shell sequentially flows through the fluid channel, the collection channel and the fluid outlet.

3. The integrated multistage filtration device of claim 1, wherein the filter cartridge is fixedly connected and sealed to the first carrier by threads.

4. The integrated multi-stage filtration device of claim 1, further comprising:

the second bearing piece is annular and is arranged on the inner wall of the first shell; a barrier disposed on the second carrier having a first portion and a second portion connected;

the supporting piece is cylindrical and provided with a plurality of through holes, one end of the supporting piece is an opening end, and the other end of the supporting piece is a supporting end; the open end having an outer extension extending in a radial direction of the support, the outer diameter of the outer extension being greater than the inner diameter of the second carrier; the second bearing piece bears the extending part;

a third seal disposed between the second carrier and the outer extension;

the first ring-shaped piece and the handle are arranged on the upper side of the supporting piece, and the lower side of the handle is connected with the first ring-shaped piece; when the handle rotates in the forward direction, the two ends of the handle are blocked by the first part and are positioned at the lower side of the second part respectively, and when the handle rotates in the reverse direction, the handle is separated from the blocking part.

5. The integrated multi-stage filtration device of claim 4, further comprising:

and the second annular piece is arranged on the inner side of the supporting piece, and the upper end of the second annular piece is connected with the first annular piece.

6. The integrated multistage filtering device according to claim 4, wherein said second bearing member comprises a first horizontal portion, a vertical portion and a second horizontal portion which are arranged in sequence from inside to outside, said second horizontal portion being connected to the inner wall of said first housing; the second horizontal portion, the vertical portion and the first horizontal portion are sequentially arranged from top to bottom.

7. The integrated multi-stage filtration device of claim 4, further comprising:

the handle is connected to the upper ends of the first connecting piece and the second connecting piece, and the lower ends of the first connecting piece and the second connecting piece are fixed to the first annular piece.

8. The integrated multi-stage filtration device of claim 4, wherein the handle is parallel to a diameter of the first annular member.

9. The integrated multistage filtration device of claim 4, wherein the distance between the underside of the second portion and the second carrier is first reduced and then increased.

10. The integrated multi-stage filtration device of claim 4, further comprising:

and one end of the rotation stopping screw is fixed on the cover body, the other end of the rotation stopping screw is fixed with a rubber head, and the rubber head is propped against the handle from top to bottom.

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