CN212818339U - Filter - Google Patents

Abstract

The utility model discloses a filter, which comprises a shell, a perforated plate, filter filler, an upper collecting pipe, a lower collecting pipe, a liquid inlet pipe, a liquid outlet pipe and a water production pipe; an inner cavity, an upper liquid port and a lower liquid port are arranged in the shell; the porous plate is arranged in the inner cavity, and the lower end part of the porous plate and the cavity wall of the inner cavity are surrounded to form a lower cavity communicated with the lower liquid port; the filtering filler is filled above the porous plate, and an upper cavity communicated with the upper liquid port is arranged above the filtering filler; one end part of the upper collecting pipe is connected with the upper liquid port, and one end part of the lower collecting pipe is connected with the lower liquid port; the feed liquor pipe through first connecting pipe with it links to each other to go up the header, be equipped with first valve in the first connecting pipe, the feed liquor pipe through the second connecting pipe with the lower header links to each other, be equipped with the second valve in the second connecting pipe. The utility model discloses can simplify the operation of just washing and back flush, improve and wash efficiency, save time.

Description

Filter

Technical Field

The utility model relates to a filter.

Background

At present, a quartz sand filter is a high-efficiency filtering device which utilizes quartz sand as a filtering medium and filters turbid water under certain pressure to achieve the effect of purifying water quality. However, when the quartz sand filter is used for replacing quartz sand, the inner cavity needs to be positively washed and backwashed, and the positive washing and the backwashing of the existing quartz sand filter are inconvenient to operate, so that the positive washing efficiency and the backwashing efficiency are influenced. And current quartz sand filter layer design is unreasonable, and quartz sand is easily dispersed by rivers, leads to rivers to become muddy, leads to the filter effect to worsen.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect, provide a filter, it can simplify the operation of just washing and back flush, improves and washes efficiency, save time.

In order to solve the technical problem, the technical scheme of the utility model is that: a filter comprises a shell, a porous plate, filter filler, an upper collecting pipe, a lower collecting pipe, a liquid inlet pipe, a liquid outlet pipe and a water production pipe; wherein the content of the first and second substances,

an inner cavity, an upper liquid port and a lower liquid port are arranged in the shell;

the porous plate is arranged in the inner cavity and connected to the shell, and the lower end part of the porous plate and the cavity wall of the inner cavity are surrounded to form a lower cavity communicated with the lower liquid port;

the filtering filler is arranged in the inner cavity and filled above the porous plate, and an upper cavity communicated with the upper liquid port is arranged above the filtering filler;

one end part of the upper collecting pipe is connected with the upper liquid port;

one end part of the lower collecting pipe is connected with the lower liquid port;

the liquid inlet pipe is connected with the upper header through a first connecting pipe, and a first valve is arranged in the first connecting pipe;

the liquid inlet pipe is connected with the lower collecting pipe through a second connecting pipe, and a second valve is arranged in the second connecting pipe;

the liquid outlet pipe is connected with the upper collecting pipe through a third connecting pipe, and a third valve is arranged in the third connecting pipe;

the liquid outlet pipe is connected with the lower collecting pipe through a fourth connecting pipe, and a fourth valve is arranged in the fourth connecting pipe;

the water production pipe is connected with the lower collecting pipe, and a fifth valve is arranged in the water production pipe.

Further, in order to prevent the filter filler from losing, a plurality of through holes are formed in the porous plate, and a filter device used for filtering liquid and preventing the filter filler from passing through the through holes is arranged between the porous plate and the filter filler.

Further provides a concrete structure of the filtering device, the filtering device comprises water caps which correspond to the through holes one by one, and the water caps are connected to the porous plate and are used for filtering liquid and preventing filtering filler from passing through the corresponding through holes.

Further in order to exhaust the air in the inner cavity, the upper end part of the shell is connected with an exhaust pipe communicated with the inner cavity, and a sixth valve is arranged in the exhaust pipe.

The specific structure of the filter filler is further provided, and the filter filler comprises a quartz sand pressing layer, a quartz sand filtering layer, a quartz sand bearing layer and a quartz sand cushion layer which are sequentially stacked from top to bottom;

the diameter of sand grains in the quartz sand filtering layer is smaller than that of sand grains in the quartz sand supporting layer;

the diameter of the sand grains in the quartz sand bearing layer is smaller than that of the sand grains in the quartz sand cushion layer.

Further, the diameter of sand grains in the quartz sand pressing layer is 16mm, and/or the diameter of sand grains in the quartz sand cushion layer is 16mm, and/or the diameter of sand grains in the quartz sand supporting layer is 6-10 mm, and/or the diameter of sand grains in the quartz filtering layer is 0.5-1 mm.

The filter filler comprises a quartz sand pressing layer, an active carbon filter layer and a quartz sand cushion layer which are sequentially stacked from top to bottom.

Further, in order to facilitate unloading of the filter filler, the housing is provided with a discharge hole for discharging the filter filler.

Further, the filter further comprises:

the water distributor is arranged in the upper cavity and is connected with the upper liquid port;

and/or a sight glass attached to the housing.

Further in order to improve the structural strength of the porous plate, at least one reinforcing rib used for supporting the porous plate is arranged in the lower chamber, the upper end part of the reinforcing rib is connected with the porous plate, and the lower end part of the reinforcing rib is connected with the shell.

After the technical scheme is adopted, when the device normally works, the first valve and the fifth valve are opened, the second valve, the third valve and the fourth valve are closed, liquid sequentially flows through the liquid inlet pipe, the first connecting pipe and the upper collecting pipe and then enters the upper cavity, and after being filtered by the filter filler, the liquid passes through the porous plate and enters the lower cavity, and then flows through the lower collecting pipe and the water production pipe and is discharged. During forward flushing, the first valve and the fourth valve are opened, the second valve, the third valve and the fifth valve are closed, liquid flows through the liquid inlet pipe, the first connecting pipe and the upper collecting pipe in sequence, enters the inner cavity for flushing, and then flows through the lower collecting pipe, the fourth connecting pipe and the liquid outlet pipe to be discharged. During back washing, the second valve and the third valve are opened, the first valve, the fourth valve and the fifth valve are closed, liquid flows through the liquid inlet pipe, the second connecting pipe and the lower collecting pipe in sequence, enters the inner cavity for washing, then flows through the upper collecting pipe, the third connecting pipe and the liquid outlet pipe and is discharged.

Drawings

Fig. 1 is a schematic view of the external structure of the filter of the present invention;

FIG. 2 is a schematic view of the internal structure of the filter of the present invention;

FIG. 3 is a schematic structural view of the filter packing of the present invention;

fig. 4 is another schematic structural diagram of the filter packing of the present invention.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1-4, a filter comprises a shell 1, a porous plate 2, a filter filler 3, an upper collecting pipe 4, a lower collecting pipe 5, a liquid inlet pipe 6, a liquid outlet pipe 7 and a water production pipe 8; wherein the content of the first and second substances,

an inner cavity 9, an upper liquid port 10 and a lower liquid port 11 are arranged in the shell 1;

the porous plate 2 is arranged in the inner cavity 9 and connected to the shell 1, and the lower end part of the porous plate 2 and the cavity wall of the inner cavity 9 surround to form a lower cavity 12 communicated with the lower liquid port 11;

the filtering filler 3 is arranged in the inner cavity 9 and filled above the porous plate 2, and an upper cavity 13 communicated with the upper liquid inlet 10 is arranged above the filtering filler 3;

one end part of the upper header 4 is connected with the upper liquid port 10;

one end part of the lower header 5 is connected with the lower liquid port 11;

the liquid inlet pipe 6 is connected with the upper header 4 through a first connecting pipe 14, and a first valve 15 is arranged in the first connecting pipe 14;

the liquid inlet pipe 6 is connected with the lower header 5 through a second connecting pipe 16, and a second valve 17 is arranged in the second connecting pipe 16;

the liquid outlet pipe 7 is connected with the upper header 4 through a third connecting pipe 18, and a third valve 19 is arranged in the third connecting pipe 18;

the liquid outlet pipe 7 is connected with the lower header 5 through a fourth connecting pipe 20, and a fourth valve 21 is arranged in the fourth connecting pipe 20;

the water production pipe 8 is connected with the lower header 5, and a fifth valve 22 is arranged in the water production pipe 8; wherein the content of the first and second substances,

during normal operation, the first valve 15 and the fifth valve 22 are opened, the second valve 17, the third valve 19 and the fourth valve 21 are closed, liquid sequentially flows through the liquid inlet pipe 6, the first connecting pipe 14 and the upper collecting pipe 4 and then enters the upper chamber 13, is filtered by the filter filler 3 and then passes through the porous plate 2 and enters the lower chamber 12, and then flows through the lower collecting pipe 5 and the water production pipe 8 and is discharged;

during positive flushing, the first valve 15 and the fourth valve 21 are opened, the second valve 17, the third valve 19 and the fifth valve 22 are closed, and liquid flows through the liquid inlet pipe 6, the first connecting pipe 14 and the upper header 4 in sequence, enters the inner cavity 9 for flushing, then flows through the lower header 5, the fourth connecting pipe 20 and the liquid outlet pipe 7 and is discharged;

during back washing, the second valve 17 and the third valve 19 are opened, the first valve 15, the fourth valve 21 and the fifth valve 22 are closed, liquid flows through the liquid inlet pipe 6, the second connecting pipe 16 and the lower collecting pipe 5 in sequence, enters the inner cavity 9 for washing, then flows through the upper collecting pipe 4, the third connecting pipe 18 and the liquid outlet pipe 7 and is discharged.

In this embodiment, the perforated plate 2 is provided with a plurality of through holes;

a filtering device for filtering liquid and preventing the filtering filler 3 from passing through the through hole is arranged between the porous plate 2 and the filtering filler 3; specifically, the filtering device can prevent the filter filler 3 from running off on one hand, and can prevent the filter filler 3 from polluting water quality after running off on the other hand.

As shown in fig. 2 to 4, the filtering apparatus includes, for example and without limitation, water caps 23 corresponding to the through holes one by one, the water caps 23 being connected to the porous plate 2 for filtering liquid and preventing the filter packing 3 from passing through the corresponding through holes. Specifically, the water cap 23 is made of ABS material, and the specific structure of the water cap 23 is known to those skilled in the art, and is not described in detail in this embodiment.

As shown in fig. 1, an exhaust pipe 24 communicating with the inner cavity 9 may be connected to an upper end of the housing 1, and a sixth valve 25 is disposed in the exhaust pipe; specifically, during the exhaust process, the first valve 15 and the sixth valve 25 are opened, the second valve 17, the third valve 19, the fourth valve 21 and the fifth valve 22 are closed, the liquid sequentially flows through the liquid inlet pipe 6, the first connecting pipe 14 and the upper collecting pipe 4 and then enters the inner cavity 9, and then the gas in the inner cavity 9 is exhausted from the exhaust pipe 24.

As shown in fig. 3, the filter filler 3 is, for example and without limitation, a structure including a quartz sand pressing layer 26, a quartz sand filtering layer 27, a quartz sand supporting layer 28 and a quartz sand cushion layer 29 which are sequentially stacked from top to bottom;

the diameter of the sand grains in the quartz sand filtering layer 27 is smaller than that of the sand grains in the quartz sand supporting layer 28;

the diameter of the sand in the quartz sand supporting layer 28 is smaller than that of the sand in the quartz sand cushion layer 29.

In the embodiment, the diameter of the sand in the quartz sand pressing layer 26 can be 16mm, the diameter of the sand in the quartz sand cushion layer 29 can be 16mm, the diameter of the sand in the quartz sand supporting layer 28 can be 6-10 mm, and the diameter of the sand in the quartz filtering layer can be 0.5-1 mm; specifically, the sand particles in the quartz sand cushion 29 have a larger diameter, so that the sand particles can be prevented from passing through the through holes, and the sand particles in the quartz sand pressing layer 26 have a larger diameter, so that the fine sand particles in the quartz sand filtering layer 27 can be pressed, the fine sand particles are prevented from being dispersed by water flow, the water flow is prevented from becoming turbid, and the filtering effect is indirectly improved. More specifically, the thickness of the quartz sand pressing layer 26 is 200mm, the thickness of the quartz sand filtering layer 27 is 900mm, the thickness of the quartz sand supporting layer 28 is 400mm, and the thickness of the quartz sand cushion layer 29 is 200 mm.

As shown in fig. 4, in the present embodiment, the filter filler 3 may also have a structure including a quartz sand pressing layer 26, an activated carbon filter layer 30, and a quartz sand cushion layer 29, which are sequentially stacked from top to bottom.

As shown in fig. 2 to 4, the housing 1 may be provided with a discharge hole 31 for discharging the filter pad 3, so that the filter pad 3 is discharged through the discharge hole 31.

As shown in fig. 2 to 4, the filter may further include:

a water distributor 32 arranged in the upper chamber 13 and connected with the upper liquid port 10;

a mirror 33 attached to the housing 1; specifically, the water distributor 32 is configured to uniformly distribute liquid into the upper chamber 13, the viewing mirror 33 is configured to observe the situation inside the casing 1, and the specific structures of the water distributor 32 and the viewing mirror 33 are well known to those skilled in the art in the prior art, and are not described in detail in this embodiment.

As shown in fig. 2 to 4, at least one reinforcing rib 34 for supporting the porous plate 2 is disposed in the lower chamber 12, an upper end portion of the reinforcing rib 34 is connected to the porous plate 2, and a lower end portion of the reinforcing rib 34 is connected to the housing 1.

The working principle of the utility model is as follows:

during normal operation, the first valve 15 and the fifth valve 22 are opened, the second valve 17, the third valve 19 and the fourth valve 21 are closed, liquid sequentially flows through the liquid inlet pipe 6, the first connecting pipe 14 and the upper collecting pipe 4 and then enters the upper chamber 13, is filtered by the filter filler 3 and then passes through the porous plate 2 and enters the lower chamber 12, and then flows through the lower collecting pipe 5 and the water production pipe 8 and is discharged. During positive flushing, the first valve 15 and the fourth valve 21 are opened, the second valve 17, the third valve 19 and the fifth valve 22 are closed, and liquid flows through the liquid inlet pipe 6, the first connecting pipe 14 and the upper header 4 in sequence, enters the inner cavity 9 for flushing, then flows through the lower header 5, the fourth connecting pipe 20 and the liquid outlet pipe 7 and is discharged. During back washing, the second valve 17 and the third valve 19 are opened, the first valve 15, the fourth valve 21 and the fifth valve 22 are closed, liquid flows through the liquid inlet pipe 6, the second connecting pipe 16 and the lower collecting pipe 5 in sequence, enters the inner cavity 9 for washing, then flows through the upper collecting pipe 4, the third connecting pipe 18 and the liquid outlet pipe 7 and is discharged.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims (10)

1. A filter is characterized by comprising a shell (1), a perforated plate (2), filter filler (3), an upper collecting pipe (4), a lower collecting pipe (5), a liquid inlet pipe (6), a liquid outlet pipe (7) and a water production pipe (8); wherein the content of the first and second substances,

an inner cavity (9), an upper liquid opening (10) and a lower liquid opening (11) are arranged in the shell (1);

the porous plate (2) is arranged in the inner cavity (9) and connected to the shell (1), and the lower end part of the porous plate (2) and the cavity wall of the inner cavity (9) surround to form a lower cavity (12) communicated with the lower liquid port (11);

the filtering filler (3) is arranged in the inner cavity (9) and filled above the porous plate (2), and an upper cavity (13) communicated with the liquid feeding port (10) is arranged above the filtering filler (3);

one end part of the upper header (4) is connected with the upper liquid port (10);

one end part of the lower collecting pipe (5) is connected with the lower liquid port (11);

the liquid inlet pipe (6) is connected with the upper header (4) through a first connecting pipe (14), and a first valve (15) is arranged in the first connecting pipe (14);

the liquid inlet pipe (6) is connected with the lower collecting pipe (5) through a second connecting pipe (16), and a second valve (17) is arranged in the second connecting pipe (16);

the liquid outlet pipe (7) is connected with the upper collecting pipe (4) through a third connecting pipe (18), and a third valve (19) is arranged in the third connecting pipe (18);

the liquid outlet pipe (7) is connected with the lower collecting pipe (5) through a fourth connecting pipe (20), and a fourth valve (21) is arranged in the fourth connecting pipe (20);

the water production pipe (8) is connected with the lower header (5), and a fifth valve (22) is arranged in the water production pipe (8).

2. The filter of claim 1,

a plurality of through holes are formed in the porous plate (2);

and a filtering device for filtering liquid and preventing the filtering filler (3) from passing through the through hole is arranged between the porous plate (2) and the filtering filler (3).

3. A filter according to claim 2, characterised in that the filtering means comprise water caps (23) in one-to-one correspondence with the through holes, the water caps (23) being connected to the perforated plate (2) for filtering the liquid and preventing the filtering filler (3) from passing through the corresponding through holes.

4. A filter according to claim 1, characterised in that an exhaust pipe (24) is connected to the upper end of the housing (1) and communicates with the interior (9), and a sixth valve (25) is arranged in the exhaust gas.

5. The filter according to claim 1, characterized in that the filter filler (3) comprises a quartz sand pressing layer (26), a quartz sand filtering layer (27), a quartz sand supporting layer (28) and a quartz sand cushion layer (29) which are sequentially stacked from top to bottom;

the diameter of sand grains in the quartz sand filtering layer (27) is smaller than that of sand grains in the quartz sand supporting layer (28);

the diameter of the sand grains in the quartz sand supporting layer (28) is smaller than that of the sand grains in the quartz sand cushion layer (29).

6. A filter according to claim 5, characterised in that the diameter of the sand grains in the quartz sand press layer (26) is 16mm, and/or the diameter of the sand grains in the quartz sand cushion layer (29) is 16mm, and/or the diameter of the sand grains in the quartz sand support layer (28) is 6-10 mm, and/or the diameter of the sand grains in the quartz sand filter layer is 0.5-1 mm.

7. The filter according to claim 1, characterized in that the filter filler (3) comprises a quartz sand laminate (26), an activated carbon filter layer (30) and a quartz sand cushion layer (29) which are sequentially stacked from top to bottom.

8. A filter according to claim 1, characterised in that the housing (1) is provided with discharge openings (31) for discharging the filter charge (3).

9. The filter of claim 1, further comprising:

the water distributor (32) is arranged in the upper chamber (13) and is connected with the upper liquid port (10);

and/or a sight glass (33) connected to the housing (1).

10. A filter according to claim 1, characterised in that at least one reinforcement rib (34) for supporting the perforated plate (2) is provided in the lower chamber (12), the upper end of the reinforcement rib (34) being connected to the perforated plate (2) and the lower end of the reinforcement rib (34) being connected to the housing (1).

Images