CN214422364U

CN214422364U - Composite filter element with scale inhibition function

Info

Publication number: CN214422364U
Application number: CN202022924462.6U
Authority: CN
Inventors: 吴理进
Original assignee: Zhejiang Aibote Environmental Protection Technology Co Ltd
Current assignee: Zhejiang Aibote Environmental Protection Technology Co Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-10-19
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a composite filter element with scale inhibition function, which comprises a filter flask and a filter flask cover, wherein a front filter element, a sleeve, an RO filter element and a rear filter element are arranged in the filter flask, the sleeve is arranged in the front filter element, and the RO filter element and the rear filter element are arranged in the sleeve; a first framework is further arranged in the sleeve, a separation surface is arranged in the middle of the first framework, and the RO filter element and the rear filter element are respectively arranged on two sides of the separation surface; the middle of one side, facing the RO filter element, of the separation surface is provided with a connecting column, the connecting column is tightly connected with the central tube, one side, facing the rear filter element, of the separation surface is of an inner-outer double-layer framework structure, the rear filter element is arranged in the inner-layer framework, and a wastewater channel is arranged between the inner-layer framework and the outer-layer framework; and a waste water through hole is formed in the separation surface. The utility model integrates the prepositive filter element, the RO filter element and the postpositive filter element in one filter flask, thereby greatly reducing the volume of the water purifier; the scale inhibition unit can prevent calcium and magnesium ions from being formed into scale, and the service life of the filter element is prolonged.

Description

Composite filter element with scale inhibition function

Technical Field

The utility model belongs to the technical field of water purification unit, in particular to combined filter core with hinder dirty function.

Background

The current water purifier generally includes the RO filter core, for further protection RO filter core, can set up leading filter core in leading filtration water route, for further improving quality of water, obtains better taste, can set up rearmounted filter core in rearmounted filtration water route. The necessary parts of the water purifier cannot be reduced, so that the volume of the water purifier is directly related to the filter element. Generally, a single filter element is independently arranged in a single filter bottle, so that the water purifier is provided with a plurality of filter bottles, and each filter bottle needs to occupy the volume of the water purifier. The water purifier is too large in size, and may not be normally installed when the installation space of a user is limited.

Meanwhile, the water hardness of some places is high, the content of calcium and magnesium ions in water is high, and long-term drinking of high-hardness water can cause chronic poisoning of human bodies and seriously harm the health of people. The content of calcium and magnesium ions in the high-hardness water can be effectively reduced through the filtration of the filter element of the water purifier, however, the RO filter element is easy to block due to the fact that the high-hardness water contains a large amount of calcium and magnesium ions, and the service life is short.

Disclosure of Invention

The utility model aims at solving the above problem, provide a can reduce the filter core and occupy the volume, and can effectively prevent the composite filter core of scale deposit.

Therefore, the technical scheme of the utility model is that: a composite filter element with a scale inhibition function comprises a filter flask and a filter flask cover which are fixedly connected, wherein a front filter element, an RO filter element and a rear filter element are arranged in the filter flask, the RO filter element comprises an RO membrane, a central tube is arranged in the RO membrane, and a first limber hole is arranged on the central tube;

the method is characterized in that: the RO filter core and the rear filter core are arranged on the inner side of the sleeve; a first framework is further arranged in the sleeve, a separation surface is arranged in the middle of the first framework, and the RO filter element and the rear filter element are respectively arranged on two sides of the separation surface; the middle of one side, facing the RO filter element, of the separation surface is provided with a connecting column, the connecting column is tightly connected with the central tube, one side, facing the rear filter element, of the separation surface is of an inner-outer double-layer framework structure, the rear filter element is arranged in the inner-layer framework, and a wastewater channel is arranged between the inner-layer framework and the outer-layer framework; and a wastewater through hole for communicating the RO filter element with the wastewater channel is formed in the separation surface.

Preferably, be equipped with 5 business turn over water interfaces on the filter flask lid, including first water inlet interface, be first water channel between leading filter core outside and the filter flask inner wall, still be equipped with the unit of hindering dirty in the filter flask lid, hinder dirty unit and be located between first water inlet interface and the first water channel.

Preferably, the scale inhibition unit is of an annular structure, and a scale inhibitor is arranged inside the scale inhibition unit; an opening is formed in one side, facing the first water inlet channel, of the scale inhibition unit.

Preferably, the preposed filter element comprises a second framework, the second framework is of a hollow cylindrical structure, and a plurality of second water through holes are formed in the second framework; the second framework is provided with a second PP cotton layer, an activated carbon layer and a first PP cotton layer from inside to outside respectively; a first water outlet channel is arranged between the second framework and the sleeve.

Preferably, a second water inlet channel is arranged between the outer side of the RO filter element and the inner wall of the sleeve, a first flow channel is arranged between the partition surface and the rear filter element, the central tube is communicated with the outer side of the rear filter element sequentially through the connecting column and the first flow channel on the partition surface, a second water outlet channel is arranged on the inner side of the rear filter element, water outlet columns are respectively fixed at the upper ends of the inner layer framework and the outer layer framework, the first water outlet column at the upper end of the inner layer framework is positioned in the second water outlet column at the upper end of the outer layer framework, and the second water outlet channel is communicated with the first water outlet column.

Preferably, a boss is arranged in the middle of the filter bottle cover, positioning blocks are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and respectively comprise a first water inlet interface, a first water outlet interface, a second water inlet interface, a wastewater interface and a pure water interface, and self-sealing water assemblies are arranged in the water inlet and outlet interfaces; a waterway conversion piece is further fixed inside the filter bottle cap, and 5 water inlet and outlet holes are formed in the waterway conversion piece and communicated with the water inlet and outlet interfaces.

Preferably, the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion piece is provided with 4 rings of concentric annular protective walls towards one side of the RO filter element and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the outside of the fourth protective wall, a first water outlet hole is communicated with the third protective wall and the fourth protective wall, a second water inlet hole is communicated with the second protective wall and the third protective wall, a waste water hole is communicated with the first protective wall and the second protective wall, and a pure water hole is communicated with the inside of the first protective wall.

Raw water enters the filter flask from a first water inlet port of the filter flask cover, firstly passes through the scale inhibition unit, flows from the inner side of the scale inhibition unit to the outer side, flows through the opening of the scale inhibition unit, is contacted with a scale inhibitor in the scale inhibition unit, then flows to a first water inlet channel, enters from the side surface of the preposed filter element, is filtered by the first PP cotton layer, the activated carbon layer and the second PP cotton layer, enters a first water outlet channel along a second through hole of the second framework, and flows out from the first water outlet port of the filter flask cover;

the water primarily filtered by the preposed filter element flows according to the design of a water path, flows through the water inlet electromagnetic valve and the booster pump, and enters the sleeve from the second water inlet interface of the filter flask cover after being pressurized by the booster pump;

after water flow is filtered by an RO membrane, produced pure water enters a central tube through a first water through hole in the central tube, enters the other side of a first framework through a connecting column on a separating surface of the first framework, enters the outer side of a rear filter element through a first water flow channel below the rear filter element, flows out from the outer side of the rear filter element, and flows out from a first water outlet column and a pure water interface of an inner framework through pure water filtered by an activated carbon layer of the rear filter element; and wastewater generated by the RO membrane enters a wastewater channel between the inner layer framework and the outer layer framework through the wastewater through hole on the separation surface and is discharged from the second water outlet column and the wastewater interface.

The utility model integrates the preposed filter element, the RO filter element and the postposition filter element in one filter flask, fully utilizes the space in the filter flask, reduces the space occupied by the filter elements, thereby greatly reducing the volume of the water purifier and meeting the use requirements of more occasions; the filter flask installs spacingly through the boss of lower extreme, during the installation disect insertion filter flask can, need not to rotate, it is more convenient to install. Meanwhile, the scale inhibition unit is arranged in front of the preposed filter element, so that water passes through the scale inhibition unit before entering the RO membrane, calcium and magnesium ions can be prevented from forming scale to block the RO membrane, and the service life of the RO filter element is prolonged.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a sectional view of the RO cartridge, the rear cartridge;

FIG. 3 is a cross-sectional view of the first frame;

FIG. 4 is a structural sectional view of the scale inhibition unit;

fig. 5 is a top view of the structure of the present invention;

fig. 6 is an explosion diagram of the structure of the filter bottle cap of the present invention;

FIGS. 7 and 8 are schematic structural views of the waterway conversion member;

FIG. 9 is a schematic structural view of the self-sealing water assembly of the present invention;

fig. 10 is a schematic view of the installation of the present invention;

fig. 11 is a schematic diagram of the waterway of the operation of the present invention.

Labeled as: the filter flask comprises a filter flask 1, a filter flask cover 2, a boss 21, a trapezoid positioning block 22, a first water inlet interface 23, a first water outlet interface 24, a second water inlet interface 25, a wastewater interface 26, a pure water interface 27, a cover plate 28, a sealing gasket 29, a second framework 31, a second water through hole 32, a first PP cotton layer 33, an activated carbon layer 34, a second PP cotton layer 35, a bottom cover 36, an RO membrane 41, a central tube 43, a first water through hole 44, a rear activated carbon layer 45, a lower end cover 46, a sleeve 51, a first framework 52, a second surface 53, a connecting column 54, an inner framework 55, a wastewater through hole 57, a first water outlet column 58, a second water outlet column 59, a first water inlet channel 61, a first water outlet channel 62, a second water inlet channel 63, a wastewater channel 64, a second water outlet channel 65, a first water channel 66, a self-sealing water-sealing component 7, a base 71, a sealing element 72, a spring 73, an annular water path block 74, a sealing ring 75, a water path conversion component 8, The device comprises a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a waste water hole 84, a pure water hole 85, a first protective wall 86, a second protective wall 87, a third protective wall 88, a fourth protective wall 89, a scale inhibition unit 9, an opening 91, a scale inhibitor 93, a waterway plate 10, a filter element seat 11, a sliding unit 12, a trapezoidal stop block 121, a push rod 122, a fixed locking unit 13, a motor 14, a cam 15, a return spring 16, a water inlet electromagnetic valve 17, a booster pump 18, a one-way valve 19, a high-pressure switch 110, a water outlet tap 111 and a waste water electromagnetic valve 112.

Detailed Description

See the drawings. The composite filter element of the embodiment comprises a filter bottle 1 and a filter bottle cover 2 which are fixedly connected, for convenience of description, the position of the filter bottle cover is regarded as the upper side, and the bottom of the filter bottle is regarded as the lower side.

A front filter element, a sleeve 51, an RO filter element and a rear filter element are arranged in the filter flask; the front filter element comprises a second framework 31 which is of a hollow cylindrical structure, and a plurality of second water through holes 32 are formed in the second framework; the second framework is provided with a second PP cotton layer 35, an activated carbon layer 34 and a first PP cotton layer 33 from inside to outside respectively. And a bottom cover 36 is arranged at the lower end of the second framework, a gap is reserved between the bottom cover and the bottom end face of the RO membrane, and water flow enters the RO membrane from the bottom end face of the RO membrane.

The sleeve 51 is arranged on the inner side of the second framework 31 of the front filter element, and a sealing ring is arranged at one end of the sleeve 51 close to the bottom of the filter flask and is tightly matched with the second framework 31 of the front filter element; the RO filter element and the post-filter element are arranged on the inner side of the sleeve 51; the RO filter element comprises an RO membrane 41, a central tube 43 is arranged in the RO membrane, and a first water through hole 44 is arranged on the central tube 43. The rear filter element comprises a rear activated carbon layer 45 and a lower end cap 46, and a first water flow channel 66 is arranged between the lower end cap and the separation surface 53.

The RO filter element and the post-filter element are arranged up and down, the post-filter element is arranged above the RO filter element and close to the filter bottle cap, a first framework 52 is further arranged in the sleeve 51, a separation surface 53 is arranged in the middle of the first framework 52, and the RO filter element and the post-filter element are respectively arranged at two sides of the separation surface; a connecting column 54 is arranged in the middle of one side of the separation surface 53 facing the RO filter element, the outer part of the connecting column 54 is tightly connected with the inner wall of the central tube 43, and the inner part of the connecting column is communicated with the two sides of the separation surface; the side of the separating surface 53 facing the rear filter element is of an inner-outer double-layer framework structure, the rear filter element is arranged in the inner-layer framework 55, and a wastewater channel 64 is arranged between the inner-layer framework 55 and the outer-layer framework 56; the separating surface 53 is provided with a plurality of waste water through holes 57 which are positioned between the inner layer framework 55 and the outer layer framework 56 and can communicate the RO filter element and the waste water channel.

A first water inlet channel 61 is arranged between the outer side of the front filter element and the inner wall of the filter flask, and a first water outlet channel 62 is arranged between the second framework of the front filter element and the sleeve. A second water inlet channel 63 is arranged between the outer side of the RO filter element and the inner wall of the sleeve, the central tube 43 is communicated with the outer side of the rear filter element sequentially through a connecting column 54 and a first water flow channel 66 on the separating surface, the inner side of the rear filter element is a second water outlet channel 65, the upper ends of the inner layer framework 55 and the outer layer framework 56 are respectively fixed with a water outlet column, the first water outlet column 58 at the upper end of the inner layer framework 55 is positioned in the second water outlet column 59 at the upper end of the outer layer framework, and the second water outlet channel 65 is communicated with the first water outlet column 58.

A boss 21 is arranged in the middle of the filter bottle cap 2, trapezoidal positioning blocks 22 are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and comprise a first water inlet interface 23, a first water outlet interface 24, a second water inlet interface 25, a wastewater interface 26 and a pure water interface 27, a self-sealing water assembly 7 is arranged in each water inlet and outlet interface, and a cover plate 28 is arranged on the outermost part of the filter bottle cap; a water path conversion piece 8 is further fixed in the filter bottle cover, and a sealing gasket 29 is arranged between the filter bottle cover and the water path conversion piece 8; the waterway conversion piece is provided with 5 water inlet and outlet holes which are respectively a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a waste water hole 84 and a pure water hole 85 and are communicated with the water inlet and outlet interface in the boss. The water path conversion part 8 is provided with 4 circles of concentric circular protective walls towards one side of the RO membrane assembly, and is divided into a first protective wall 86, a second protective wall 87, a third protective wall 88 and a fourth protective wall 89 from inside to outside, a first water inlet 81 is communicated with the outside of the fourth protective wall 89, a first water outlet 82 is communicated with the third protective wall and the fourth protective wall, a second water inlet 83 is communicated with the second protective wall and the third protective wall, a waste water hole 84 is communicated with the first protective wall and the second protective wall, and a pure water hole 85 is communicated with the inside of the first protective wall 86.

The filter bottle cap 2 is also internally provided with a scale inhibition unit 9, and the scale inhibition unit 9 is positioned between the first water inlet port 23 and the first water inlet channel 61. The scale inhibition unit 9 is of an annular structure, and a scale inhibitor 93 is arranged inside the scale inhibition unit; the side of the scale inhibition unit facing the first water inlet channel 61 is provided with an opening 91.

The self-sealing water assembly 7 comprises a base 71, a sealing element 72 and a spring 73, wherein the base is of a hollow cylindrical structure, a protruding annular block 74 is arranged inside the base, and the aperture in the middle of the annular block is smaller than the apertures of the upper end and the lower end of the base; the sealing member is T-shaped, the small end of the sealing member penetrates through the annular step surface, the sealing ring 75 is sleeved at the lower end of the sealing member and abuts against the step surface below the annular block, the spring is sleeved on the sealing member, one end of the spring abuts against the large end of the sealing member, and the other end of the spring abuts against the step surface above the annular block.

The water circuit board 10 is provided with a filter element fixing seat, the filter element fixing seat comprises a filter element seat 11, a sliding unit 12 and a fixing and locking unit 13, 5 filter element interfaces are arranged in the filter element seat 11, sliding rails are arranged on two sides inside the filter element seat, and the sliding unit 12 is arranged in the filter element seat 11 and can move along the sliding rails; a first opening is formed in the middle of the sliding unit 12, and a plurality of trapezoidal stoppers 121 are arranged on two sides of the first opening; the fixed locking unit 13 is positioned above the sliding unit 12 and fixed with the filter element seat 11, and a second elongated slot-shaped opening is formed in the middle of the fixed locking unit. The water circuit board 10 is also provided with a motor 14 and a cam 15, the motor is positioned at one side of the filter element seat, and the cam is arranged on the motor; the sliding unit 12 is provided with a push rod 122 on one side facing the motor, the protruding part of the cam cooperates with the push rod, the cam pushes the sliding unit to slide inwards, and the inner side of the sliding unit is provided with a return spring 16.

The boss 21 on the filter bottle 1 is inserted in alignment with the second opening in the middle of the fixed locking unit 13, and the trapezoid positioning blocks 22 on both sides of the boss slide downwards along the trapezoid stopper 121 of the sliding unit, so that the sliding unit slides inwards along the slide rail, i.e. away from the motor 14. When the filter cartridge is inserted into position, the slide unit 12 is moved back towards the motor 14 by the return spring 16, returning to the position before insertion of the filter cartridge. Therefore, the trapezoidal stop block 121 of the sliding unit is blocked on the trapezoidal positioning block 22 of the filter bottle to limit and fix the filter element up and down.

Raw water a enters the filter flask from the first water inlet port 23 of the filter flask cover and the first water inlet hole 81 of the water channel switching piece, then flows from the inner side to the outer side of the scale inhibition unit through the scale inhibition unit 9, and water flows through the opening 91 of the scale inhibition unit, contacts with the scale inhibitor 93 in the scale inhibition unit, then flows to the first water inlet channel 61, enters from the side surface of the preposed filter element, is filtered by the first PP cotton layer 33, the activated carbon layer 34 and the second PP cotton layer 35, enters the first water outlet channel 62 along the second water through hole 32 of the second framework 31, and flows out of primary filtered water b from the first water outlet hole 82 and the first water outlet port 24 of the filter flask cover 2;

the initial filter water b flows according to the water path design, flows through the water inlet electromagnetic valve 17 and the booster pump 18, and the water pressurized by the booster pump 18 enters the sleeve 51 from the second water inlet connector 25 of the filter flask cover and the second water inlet hole 83 of the water path conversion piece, and because the water cannot enter the RO membrane from the outer side, the water flows to the bottom of the RO membrane along the second water inlet channel 63 and enters from the end face of the bottom of the RO membrane;

after water flow is filtered by the RO membrane 41, the generated pure water enters the central tube 43 through the first water through hole 44 on the central tube 43, then enters the other side of the first framework through the connecting post 54 on the separation surface of the first framework, enters the outer side of the rear filter element through the first water flow channel 66 below the rear filter element, the pure water c flows out from the outer side of the rear activated carbon layer 45, the pure water filtered by the rear activated carbon layer 45 flows out from the second water outlet channel 65, the first water outlet post 58 of the inner framework and the pure water interface 27, and flows out from the water outlet tap 111 after passing through the one-way valve 19 and the high-pressure switch 110; the wastewater d generated by the RO membrane enters the wastewater channel 64 between the inner layer framework and the outer layer framework through the wastewater through hole 57 on the separation surface, is discharged from the second water outlet column and the wastewater interface 26, and is connected with the wastewater outlet through the wastewater electromagnetic valve 112.

Claims

1. A composite filter element with a scale inhibition function comprises a filter flask and a filter flask cover which are fixedly connected, wherein a front filter element, an RO filter element and a rear filter element are arranged in the filter flask, the RO filter element comprises an RO membrane, a central tube is arranged in the RO membrane, and a first limber hole is arranged on the central tube;

2. The composite filter element with the scale inhibition function of claim 1, wherein: the filter bottle cover is provided with 5 water inlet and outlet interfaces, wherein the filter bottle cover comprises a first water inlet interface, a first water inlet channel is arranged between the outer side of the front filter element and the inner wall of the filter bottle, a scale inhibition unit is further arranged in the filter bottle cover and is positioned between the first water inlet interface and the first water inlet channel.

3. The composite filter element with the scale inhibition function as claimed in claim 2, wherein: the scale inhibition unit is of an annular structure, and a scale inhibitor is arranged inside the scale inhibition unit; an opening is formed in one side, facing the first water inlet channel, of the scale inhibition unit.

4. The composite filter element with the scale inhibition function of claim 1, wherein: the front filter element comprises a second framework which is of a hollow cylindrical structure, and a plurality of second water through holes are formed in the second framework; the second framework is provided with a second PP cotton layer, an activated carbon layer and a first PP cotton layer from inside to outside respectively; a first water outlet channel is arranged between the second framework and the sleeve.

5. The composite filter element with the scale inhibition function of claim 1, wherein: the RO filter element is characterized in that a second water inlet channel is arranged between the outer side of the RO filter element and the inner wall of the sleeve, a first water outlet channel is arranged between the partition surface and the rear filter element, the central tube is communicated with the outer side of the rear filter element sequentially through a connecting column and the first water outlet channel on the partition surface, the inner side of the rear filter element is a second water outlet channel, the upper ends of the inner layer framework and the outer layer framework are respectively fixed with a water outlet column, a first water outlet column at the upper end of the inner layer framework is positioned in a second water outlet column at the upper end of the outer layer framework, and the second water outlet channel is communicated with the first water outlet column.

6. The composite filter element with the scale inhibition function of claim 1, wherein: a boss is arranged in the middle of the filter bottle cover, positioning blocks are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and respectively comprise a first water inlet interface, a first water outlet interface, a second water inlet interface, a wastewater interface and a pure water interface, and self-sealing water assemblies are arranged in the water inlet and outlet interfaces; a waterway conversion piece is further fixed inside the filter bottle cap, and 5 water inlet and outlet holes are formed in the waterway conversion piece and communicated with the water inlet and outlet interfaces.

7. The composite filter element with the scale inhibition function of claim 6, wherein: the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion piece is provided with 4 rings of concentric annular protective walls towards one side of the RO filter element and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the outside of the fourth protective wall, a first water outlet hole is communicated with the third protective wall and the fourth protective wall, a second water inlet hole is communicated with the second protective wall and the third protective wall, a waste water hole is communicated with the first protective wall and the second protective wall, and a pure water hole is communicated with the inside of the first protective wall.