CN110898670B - Filter device and filter system - Google Patents

Filter device and filter system Download PDF

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Publication number
CN110898670B
CN110898670B CN201911242303.3A CN201911242303A CN110898670B CN 110898670 B CN110898670 B CN 110898670B CN 201911242303 A CN201911242303 A CN 201911242303A CN 110898670 B CN110898670 B CN 110898670B
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China
Prior art keywords
water
filter element
pure water
annular portion
cavity
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CN201911242303.3A
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Chinese (zh)
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CN110898670A (en
Inventor
林孝发
林孝山
谢添明
汪仁虎
王运灿
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Jomoo Kitchen and Bath Co Ltd
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Jomoo Kitchen and Bath Co Ltd
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Priority to CN201911242303.3A priority Critical patent/CN110898670B/en
Publication of CN110898670A publication Critical patent/CN110898670A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/04—Specific sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/18—Specific valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/24—Specific pressurizing or depressurizing means
    • B01D2313/243—Pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/12—Use of permeate

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a filtering device and a filtering system, wherein the filtering device comprises a shell, a filter element, a raw water passing waterway, a pure water passing waterway and a concentrated water passing waterway, the bottom end of the filter element is communicated with the raw water passing waterway for raw water to enter, the top end of the filter element is communicated with the concentrated water passing waterway for concentrated water to be discharged, and the filtering device further comprises a water storage component which is communicated with the pure water passing waterway and is used for storing pure water when the filtering device is in operation and pushing the stored pure water to enter the filter element through a central tube or the bottom end of the filter element by utilizing air pressure to flush when the filtering device is stopped. By adopting the filtering device and the filtering system with the above structures, when the filtering device stops working, the water storage component presses the stored pure water to wash the filter element, so that the ion concentration of water originally existing in the filter element is reduced, and the TDS value of the first cup of water is reduced.

Description

Filtering device and filtering system
Technical Field
The invention relates to the technical field of filter elements, in particular to a filter device and a filter system.
Background
The main components of the reverse osmosis water purifying device are reverse osmosis membrane filter elements, which are generally provided with three waterway inlets and outlets, namely a water inlet, a pure water outlet and a concentrated water outlet, the structure of the reverse osmosis water purifying device generally comprises a core material, a filter element shell and a central tube, wherein the core material is wound around the central tube, the filter element shell is arranged on the outer side wall of the core material, raw water can only enter from one end of the filter element, concentrated water can only flow out from the other end of the filter element, and meanwhile, the central tube wall is provided with a plurality of water through holes for receiving pure water. Through pressurizing water inlet one side, make municipal tap water get into in the filter core through the water inlet, filter the running water through reverse osmosis membrane again to the pure water that will filter obtains is discharged to storage water tank or tap through pure water delivery port, can't pierce through various heavy metal ion, impurity and the harmful substance etc. accumulation of reverse osmosis membrane in the dense water side, and discharge through dense water delivery port.
When the reverse osmosis water purification device is shut down, the booster pump arranged on the water inlet side stops working, part of undischarged concentrated water is reserved on the concentrated water side of the reverse osmosis filter element, part of pure water is reserved on the pure water side, salt ions on the concentrated water side can permeate to the pure water side under the action of osmotic pressure caused by ion concentration difference in water, concentrated water in a drainage pipeline communicated with the concentrated water side can flow back to the filter element in the permeation process, the permeation of the salt ions is further aggravated, the ion concentration measured by the pure water can rise to a higher state after the reverse osmosis water purification device is shut down for a long time, so that the TDS (Total dissolved solids) value of the pure water in a membrane is higher, the TDS value of the first cup of water flowing out from a tap after the reverse osmosis water is finally caused to be too high, and the water purification device is unfavorable for human body to drink.
Disclosure of Invention
The invention aims to overcome the defects or problems in the prior art, and provides a filtering device and a filtering system, which can reduce the TDS value of pure water after shutdown and solve the problem that the TDS value of a first cup of water of a reverse osmosis water purifying device is too high.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The first technical scheme is that the filtering device comprises a shell, a filter element, a raw water passing waterway, a pure water passing waterway and a concentrated water passing waterway, wherein the raw water passing waterway comprises a raw water inlet arranged on the shell, the pure water passing waterway comprises a central pipe arranged in the filter element and a pure water outlet arranged on the shell, the concentrated water passing waterway comprises a concentrated water outlet arranged on the shell, the bottom end of the filter element is communicated with the raw water passing waterway for raw water to enter, the top end of the filter element is communicated with the concentrated water passing waterway for concentrated water to be discharged, and the filtering device further comprises a water storage component which is communicated with the pure water passing waterway and is used for storing pure water when the filtering device is in operation, and the stored pure water is pushed to enter the filter element by utilizing air pressure to flush through the central pipe or the bottom end of the filter element when the filtering device is stopped.
On the basis of the first scheme, the water storage component is a pure water cavity formed by a space between the shell and the filter element, the pure water cavity is communicated with the central tube and isolated from the bottom end and the top end of the filter element, and air in the pure water cavity exerts pressure on pure water entering the pure water cavity.
The water storage component comprises an air bag water tank which is positioned outside the shell and is communicated with the pure water inlet, the air bag water tank is provided with an air cavity and an elastic film for sealing the air cavity, pure water enters the air bag water tank when the filtering device operates and extrudes air in the air cavity through the elastic film to store energy, and compressed air expands when the filtering device stops and extrudes the stored pure water through the elastic film to enable the compressed air to enter the filter element.
On the basis of the third scheme, a fourth scheme is also provided, wherein the water storage component further comprises a water storage cavity which is formed by a space between the shell and the filter element, is communicated with the central tube and is isolated from the bottom end and the top end of the filter element.
The water filter is characterized by further comprising a valve which is arranged between the pure water cavity and the bottom end of the filter element or between the water storage cavity and the bottom end of the filter element and is communicated when the water pressure at the pure water cavity side or the water storage cavity side is greater than the water pressure at the bottom end side of the filter element.
The water inlet pipe is sleeved in the central pipe, pure water obtained after filtering by the filter element enters a gap between the central pipe and the water inlet pipe and flows to the pure water outlet and the pure water cavity or the water storage cavity.
On the basis of the sixth scheme, a seventh scheme is further provided, wherein a first limiting protrusion is arranged at a position, close to the bottom end, of the inner wall of the central tube, a second limiting protrusion matched with the first limiting protrusion is arranged at a corresponding position on the outer wall of the water inlet tube, the second limiting protrusion is used for propping against the first limiting protrusion to fix the water inlet tube, the first limiting protrusion extends along the vertical direction to form a sealing wall, and when the water inlet tube is fixed on the central tube, the outer wall of the water inlet tube is in sealing fit with the sealing wall.
On the basis of the sixth scheme, the filter is further provided with an eighth scheme, and the filter further comprises a first sealing piece fixedly connected to the bottom of the filter element to isolate the bottom end of the filter element from the pure water cavity, and the central tube penetrates through the first sealing piece to be communicated with the pure water cavity and is in sealing fit with the first sealing piece.
The water inlet pipe is characterized in that the top end of the inner side of the shell is provided with a first protruding annular portion, the top end of the water inlet pipe is in sealing fit with the inward side wall of the first annular portion and is communicated with the raw water inlet, the top end of the inner side of the shell is provided with a second protruding annular portion concentric with the first annular portion and located outside the first annular portion, the top end of the central pipe is in sealing fit with the inward side wall of the second annular portion and is matched with the outward side wall of the first annular portion to form a water channel communicated with the pure water outlet, the water inlet pipe further comprises a second sealing piece fixedly connected to the top of the filter element to isolate the top end of the filter element from the pure water cavity, the top end of the inner side of the shell is provided with a third annular portion concentric with the second annular portion and located outside the second annular portion, and is in sealing fit with the inward side wall of the third annular portion and is matched with the outward side wall of the second annular portion to form the water channel communicated with the concentrated water outlet.
On the basis of the second or fourth scheme, a tenth scheme is also provided, wherein the bottom end of the inner side of the shell is provided with a supporting bar, and the supporting bar props against the filter element so that the central pipe is communicated with the pure water cavity or the water storage cavity.
The present invention also provides a filtration system including a filtration apparatus according to any one of the first to tenth aspects, further comprising:
The raw water inlet pipeline is communicated with the raw water inlet and is provided with an electromagnetic valve and a pressure pump;
one end of the pure water outlet pipeline is communicated with the pure water outlet, and the other end of the pure water outlet pipeline is communicated with a water outlet tap;
The concentrated water outlet pipeline is communicated with the concentrated water outlet and is provided with a flushing valve.
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. The water storage component is arranged, pure water is stored when the filtering device is in operation, the pure water is discharged by utilizing air pressure when the filtering device is stopped, the pure water enters a waterway of the filtering device and enters the filter element, flushing of the inside of the filter element is realized, the TDS value of water in the filter element in a stop state is reduced, the problem that the TDS value of first cup of water is too high due to osmotic pressure after the filter element is stopped for a long time is further reduced, in addition, the water storage component is directly communicated with the pure water waterway, the structural complexity of the filtering device can be reduced, a corresponding valve or a pipeline is not required to be additionally arranged, and therefore the manufacturing cost of the filtering device can be reduced.
2. The pure water cavity is internally provided with air, and because the pure water cavity is communicated with the central tube, after pure water is filtered by the filter element to form pure water, a part of pure water can enter the pure water cavity from the bottom, the air originally existing in the pure water cavity is extruded, when water inflow is stopped, the concentrated water outlet is decompressed, the air in the pure water cavity pushes the pure water in the cavity to enter the central tube, and then the pure water is diffused to the filter element through the central tube, so that the filter element is flushed, the ion concentration of the water originally existing in the filter element is reduced, and the TDS value of the first cup of water caused by osmotic pressure is reduced.
3. The air bag water tank stores pure water and expands when the filtering system is in operation, air in the air cavity restores the original volume when the filtering system stops operating, and the stored pure water is extruded through the elastic film, so that the pure water can directly enter the filter element for flushing through the central pipe wall.
4. The water storage cavity is arranged, and can play the same role as the pure water cavity under the condition that air exists in the water storage cavity, and is communicated with the air bag water tank on the basis, so that the water discharge capacity is prevented from being reduced after the air in the water storage cavity escapes, and in addition, if no air exists in the water storage cavity, pure water can be extruded into the filter element for flushing by utilizing the effect of the air bag water tank through the communication of the air storage cavity and the air bag water tank.
5. The valve is arranged, when the filtering device is stopped, the pressure of the concentrated water outlet is released, the pressure in the pure water cavity or the water storage cavity is larger than the water pressure at the bottom end of the filter element, so that the valve is communicated, one part of pure water in the pure water cavity or the water storage cavity enters the filter element through the central tube, the ion concentration of the raw water side is reduced after the other part of pure water flows through the valve, the filter element is flushed, the pressure required by the filter element entering the central tube from the water inlet side of the filter element is smaller than that required by the filter element entering the filter element from the central tube of the filter element, and therefore, the flushing effect on the filter element can be improved under the same pressure condition, and the TDS value of the first cup of water is further reduced.
6. The water inlet pipe is arranged and used for guiding raw water to the bottom end of the filter element to enter water, the water inlet pipe is sleeved on the central pipe, the volume of the filtering device can be reduced, and the assembly is more convenient.
7. The first limiting protrusion and the second limiting protrusion are arranged, and the water inlet pipe is fixed in the central pipe through propping of the first limiting protrusion and the second limiting protrusion. And a sealing wall is arranged for realizing isolation of the pure water waterway and the raw water waterway when the water inlet pipe is fixed in the central pipe.
8. The filter element comprises a filter element, a first sealing piece, a first annular part, a second annular part, a third annular part and a second sealing piece, wherein the filter element is used for sealing the bottom end of the filter element and isolating a pure water cavity or a water storage cavity from the bottom end of the filter element, the first annular part is used for enabling a water inlet pipe to be communicated with a water inlet and guaranteeing tightness when the filter element is assembled, the second annular part is used for enabling a central pipe to be communicated with a pure water outlet and guaranteeing tightness when the filter element is assembled, the third annular part is used for enabling the second sealing piece to be communicated with a concentrated water outlet and guaranteeing tightness when the filter element is assembled, and the second sealing piece is used for sealing the top end of the filter element and isolating the top end of the filter element from the pure water cavity or the water storage cavity.
9. The support bar is arranged and used for forming a space for communicating the central tube with the pure water cavity or the water storage cavity between the bottom end of the filter element and the bottom end of the inner side of the shell when the filter element is assembled in the shell.
10. The filter system is internally provided with an electromagnetic valve for controlling the on-off of a raw water inlet pipeline, a second pressure pump is used for pressurizing raw water to enable the raw water to enter the filter element for filtering, a water outlet tap is used for controlling the opening and closing of a pure water outlet pipeline and water outlet, and a flushing valve is used for adjusting the water flow of the concentrated water outlet pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment 1 of a filtering device according to the present invention;
FIG. 2 is a schematic diagram of the portion A in FIG. 1;
FIG. 3 is a schematic view of the portion B in FIG. 1;
fig. 4 is a schematic structural diagram of an embodiment 2 of a filtering device according to the present invention;
FIG. 5 is a schematic view of the portion B in FIG. 4;
fig. 6 is a schematic structural diagram of an embodiment 4 of a filtering device according to the present invention;
fig. 7 is a schematic structural diagram of a filtering system according to the present invention.
The main reference numerals illustrate:
10. The device comprises a shell, a raw water inlet, 111, a first annular part, 12, a pure water outlet, 121, a second annular part, 131, a third annular part, 13, a concentrated water outlet, 14, a supporting bar, 21, a filter material, 22, a central tube, 221, a first limiting protrusion, 222, a sealing wall, 23, a filter element shell, 30, a valve, 41, a second sealing element, 411, a second cladding plate, 421, a third connecting part, 413, a fourth connecting part, 42, a first sealing element, 421, a first cladding plate, 422, a first connecting part, 423, a second connecting part, 50, a water inlet pipe, 51, a second limiting protrusion, 60, a pure water cavity, 61, a water storage cavity, 71, a pressure pump, 72, a pure water outlet pipe, 73, an air bag water tank, 74 and a filter flask.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are preferred embodiments of the invention and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without creative efforts, are within the protection scope of the present invention.
In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the invention.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.
In the claims, specification and drawings of the present invention, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of an embodiment 1 of a filtering device according to the present invention, which includes a housing 10, a filter element, a first sealing member 42, a second sealing member 41, and a water inlet pipe 50, wherein a pure water cavity 60 is formed between the housing 10 and the filter element, and the pure water cavity 60 is a water storage component according to the present invention.
The casing 10 includes a housing and a cover, the cover is a bottom end portion of the casing 10, the housing is other portions of the casing 10 except the cover, the housing is used for accommodating the filter element, the water inlet pipe 50, the first sealing member 42 and the second sealing member 41, and the cover is used for being fixedly connected with the housing to form the complete casing 10. The cover is fixedly connected with the lower end part of the shell in a sealing way by welding, screwing and the like after the filter element, the water inlet pipe 50, the first sealing piece 42 and the second sealing piece 41 are assembled into the shell. In addition, the overall shape of the housing 10 may be cylindrical or prismatic or other long cylindrical shape.
The upper end of the shell 10 is provided with a raw water inlet 11, a pure water outlet 12 and a concentrated water outlet 13 which are arranged into concentric annular through groove structures, and a connecting structure for connecting and fixing an external pipeline is arranged on each through groove structure. The shape of the annular through groove structure formed by the raw water inlet 11, the pure water outlet 12 and the concentrated water outlet 13 can be matched with the integral shape of the shell 10 to form an annular shape or a square frame shape, or can be not matched with the integral shape of the shell, and only the functions of water inlet and water outlet and the functions of matched communication with an external pipeline are required. As shown in fig. 1, the center is provided with a raw water inlet 11, the raw water inlet 11 is outwards provided with a pure water outlet 12, and the pure water outlet 12 is outwards provided with a concentrated water outlet 13. The raw water inlet 11 is communicated with an external water inlet pipeline, receives raw water under the action of a pressurizing device, and can be municipal tap water.
As shown in fig. 2, a first annular portion 111, a second annular portion 121, and a third annular portion 131 are provided at the inner top of the housing 10, and are provided in a concentric annular convex structure. Specifically, the side wall of the first annular portion 111 surrounds to form a cylindrical groove structure, the top surface of the cylindrical groove structure is communicated with the raw water inlet 11, the side wall of the second annular portion 121 is matched with the side wall of the first annular portion 111 to form an annular groove structure, the top surface of the cylindrical groove structure is communicated with the pure water outlet 12, the side wall of the third annular portion 131 is matched with the side wall of the second annular portion 121 to form an annular groove structure, and the top surface of the cylindrical groove structure is communicated with the concentrated water outlet 13. Likewise, the shape of the first annular portion 111, the second annular portion 121, and the third annular portion 131 may match or not match the overall shape of the housing 10. In particular, the bottom ends of the first annular portion 111, the second annular portion 121, and the third annular portion 131 are in a plane.
The filter element comprises a filter material 21, a central tube 22 and filter element shells 2 and 3, wherein the filter material 21 can be formed by jointly winding a reverse osmosis membrane with a water-proof net, a screen mesh and the like by taking the central tube 22 as a circle center, and the filter element shell 24 is arranged on the outer side wall of the filter material 21, so that only the top end and the bottom end of the filter element can supply water or inflow water. The filter material 21 may be a material such as a nanofiltration membrane that can filter metal ions in water.
The central tube 22 is disposed at the center of the filter material 21, and has a wall provided with a plurality of through holes, through which pure water formed after raw water passes through the filter material enters the central tube 22. As shown in fig. 2, the upper end of the central tube 22 is communicated with the pure water outlet 12, in this embodiment, the upper end of the central tube 22 is inserted into an annular groove formed by the cooperation of the first annular portion 111 and the second annular portion 121, the outer side wall of the upper end of the central tube 22 is in shape-matching and inserting relation with the inward side wall of the second annular portion 121, a sealing ring is sleeved on the outer side wall of the upper end of the central tube 22 so as to form sealing cooperation with the inward side wall of the second annular portion 121, and meanwhile, the wall thickness of the central tube 22 is smaller than the width of the annular groove formed by the cooperation of the first annular portion 111 and the second annular portion 121, so that after the central tube 22 is inserted into the annular groove, a gap through which water flows is formed between the inner side wall of the central tube 22 and the outward side wall of the first annular portion 111, and meanwhile, the top surface of the annular groove formed by the second annular portion 121 is communicated with the pure water outlet 12, so that the central tube 22 can be communicated with the pure water outlet 12.
The top end of the water inlet pipe 50 is communicated with the raw water inlet 11, and the bottom end is communicated with the bottom end of the filter element, specifically, in this embodiment, the water inlet pipe 50 is arranged to be sleeved in the central pipe 22, a gap between the outer wall of the water inlet pipe 50 and the central pipe 22 forms a pure water outlet channel communicated with the pure water outlet 12, and pure water generated by the filter element enters the pure water outlet channel and flows to the pure water outlet 12 and the pure water cavity 60. As shown in fig. 3, a first limiting protrusion 221 is disposed on the inner wall of the central tube 22 near the lower end, the first limiting protrusion 221 is an annular protrusion structure formed by extending the inner wall surface of the central tube 22 inwards, and further comprises a structure extending upwards along the vertical direction, the structure is prevented from forming the sealing wall 222 inwards, a second limiting protrusion 51 is correspondingly disposed on the position of the water inlet tube 50 near the lower end, the positions of the first limiting protrusion 221 and the second limiting protrusion 51 are matched in shape, and when the water inlet tube 50 is inserted into the central tube 22 downwards, the second limiting protrusion 51 abuts against the first limiting protrusion 221 at the position near the bottom end of the central tube 22, so as to fix the water inlet tube 50. Meanwhile, a sealing ring is sleeved at a position of the water inlet pipe 50 corresponding to the sealing wall 222, and the size of the water inlet pipe 50 at the position is matched with the size of the sealing wall 222, so that raw water and pure water are isolated.
As shown in fig. 3, the bottom end of the inlet tube 50 is flush with the bottom end of the cartridge, and the bottom end of the center tube 22 is lower than the bottom end of the cartridge and extends into the first seal member 42. Specifically, a water channel communicated with the water inlet pipe 50 is arranged on the central pipe 22 at a position between the bottom end of the filter element and the first sealing piece 42, and the specific shape of the water channel can be regarded as forming an inverted T-shaped structure together with a water channel in the vertical direction in the water inlet pipe 50, and pure water in the central pipe 22 flows through two sides of the water channel.
As shown in fig. 2, the upper end of the water inlet pipe 50 is communicated with the raw water inlet 11, in this embodiment, the upper end of the water inlet pipe 50 is inserted into a cylindrical groove surrounded by the side wall of the first annular portion 111, the outer side wall of the upper end of the central pipe 22 is matched with the inward side wall of the first annular portion 111 in shape to form a plug-in connection, and a sealing ring is sleeved on the outer side wall of the upper end of the water inlet pipe 50 to form a sealing fit with the inward side wall of the first annular portion 111, and since the top surface of the cylindrical groove formed by the first annular portion 111 is communicated with the raw water inlet 11, the water inlet pipe 50 can be communicated with the raw water inlet 11.
The first seal member 42 is fixedly connected to the bottom of the filter cartridge to isolate the bottom end of the filter cartridge from the pure water chamber 60, and the central tube 22 penetrates the first seal member 42 to communicate with the pure water chamber 60 and is in sealing fit with the first seal member 42. Specifically, in the present embodiment, the first sealing member 42 is configured as shown in fig. 3, and includes a first cladding plate 421 and a first connecting portion 422 and a second connecting portion 423, where the shape of the first cladding plate 421 is consistent with the cross section of the filter element, and may be a circular ring or a square frame structure, and a hole is formed in the middle portion of the first cladding plate for the central tube 22 to pass through. The first cladding plate 421 has one side at the hole site, the opposite outer edge forms the other side, the side of the first connecting portion 422 at the outer edge extends in the upward vertical direction, and then is fixedly connected with the cartridge shell 24, so as to form a cladding effect on the end surface of the bottom of the cartridge, and further isolate the bottom end of the cartridge and the pure water chamber 60. The second connection portion 423 is formed to extend in a downward vertical direction at a side edge of the hole site, and is sized to match the center tube 22. The side wall of the central tube 22 at this position is sleeved with a sealing ring, and when the central tube 22 is inserted into the hole site on the first sealing member 42, the sealing ring is matched with the side wall of the second connecting portion 423 to form a sealing connection so as to prevent raw water and pure water from being mixed.
The second sealing member 41 is fixedly connected to the top of the filter element to isolate the top of the filter element from the pure water chamber 60, specifically, the structure of the first sealing member 42 is shown in fig. 2, and the second sealing member includes a second cladding plate 411, a third connecting portion 412 and a fourth connecting portion 413, wherein the shape of the second cladding plate 411 is consistent with the cross section of the filter element, and the second cladding plate can be in a circular ring or square frame structure, and a hole is formed in the middle of the second cladding plate for allowing the central tube 22 and the water inlet tube 50 to pass through. The second cladding plate 411 has one side at the hole site, the other side at the opposite edge thereof, the third connecting portion 412 is formed at the side at the outer edge in the downward vertical direction and then fixedly connected with the cartridge case 23, and the fourth connecting portion 413 is formed at the side at the hole site in the upward vertical direction and then in sealing engagement with the third annular portion 131. The fourth connecting portion 413 is inserted into the annular groove formed by the cooperation of the second annular portion 121 and the third annular portion 131, the outer side wall of the fourth connecting portion 413 is matched with the inward side wall of the third annular portion 131 in shape to form an inserting connection, and a sealing ring is further sleeved on the outer side wall of the fourth connecting portion 413 so as to form sealing cooperation with the inward side wall of the third annular portion 131, so that the top end of the filter element is isolated from the pure water cavity 60. The thickness of the fourth connecting portion 413 is smaller than the width of the annular groove formed by the cooperation of the second annular portion 121 and the third annular portion 131, so that after the fourth connecting portion 413 is inserted into the annular groove, a gap through which water flows is formed between the inner side wall of the fourth connecting portion 413 and the outer side wall of the second annular portion 121, and meanwhile, the top surface of the annular groove formed by the third annular portion 131 is communicated with the concentrated water outlet 13, so that the top end surface of the filter element can be communicated with the concentrated water outlet 13 without being mixed with pure water.
The support bar 14 is provided at the bottom end of the housing 10, and the filter element is abutted with the support bar 14 after being mounted in the housing, wherein the structure abutted with the support bar is the bottom end of the central tube 22, so that a certain space is formed between the bottom end of the central tube 22 and the pure water chamber 60 for pure water to flow to the pure water chamber 60.
During assembly, the first sealing member 42 and the second sealing member 41 are fixedly connected with the filter element shell 23, the water inlet pipe 50 is inserted into the central pipe 22, the first limiting protrusion 221 and the second limiting protrusion 51 are matched and fixed with the water inlet pipe 50, the filter element is integrally inserted into the shell upwards, the water inlet pipe 50, the central pipe 22 and the second sealing member 41 form an inserting connection with the first annular portion 111, the second annular portion 121 and the third annular portion 131 on the shell, and then the cover body and the shell are welded.
When the filter device is used, the filter device is assembled into a water filtering system, tap water flows in from the water inlet pipe 50 after the water inlet pressurizing device is started, is guided into the space at the bottom end of the filter element, enters the filter material 21 from the bottom end of the filter element to filter water, part of generated pure water is discharged through the pure water outlet 12, and part of the generated pure water is stored into the pure water cavity 60 through the lower end of the central pipe 22, and extrudes air originally existing in the pure water cavity 60, so that pure water is stored in the pure water cavity 60 when pressure is balanced. When the machine is stopped, the concentrated water outlet 13 is depressurized, and the pure water in the pure water cavity 60 flows back to the filter material 21 through the central tube 22 under the action of air pressure, so that the filter material 21 is flushed, and the TDS of the water in the filter material 21 is reduced.
In addition, the present invention provides embodiment 2, the specific structure of which is shown in fig. 4 and 5, which is different from that of embodiment 1 in that it further comprises a valve 30 which is installed between the pure water chamber 60 and the bottom end of the filter cartridge and opens when the water pressure of the pure water chamber 60 side is greater than the water pressure of the bottom end side of the filter cartridge.
Specifically, the valve 30 is disposed on the first cladding plate 421 of the first sealing member 42, and is a pressure valve that can be opened and closed by pressure change on both sides, for example, a valve with a piston structure, when the pressure on the bottom end side of the filter element is large, the piston moves downward to block the waterway, when the pressure on the pure water chamber 60 side is large, the piston moves upward to open the waterway, so that the stored water in the pure water chamber 60 enters into the space between the bottom end of the filter element and the first sealing member 42 to be mixed with the raw water, and the TDS value of the raw water is reduced, thereby reducing the TDS value of the first cup of water.
With the valve 30, pure water in the pure water chamber 60 can enter the space between the bottom end of the cartridge and the first seal member 42 through the valve 30 and then enter the cartridge from the inlet side of the cartridge. Because the filter element is a structure formed by convoluting the coiled film around the central pipe 22, compared with the structure that the coiled film enters the filter material 21 of the filter element from the central pipe 22, the pressure required by the filter element is lower than that required by the filter element from the water inlet side of the filter element, compared with the central pipe 22, the valve 30 is equivalent to a pressure release state, and most pure water can be backflushed into the filter material 21 through the valve 30, so that the TDS value of the first cup of water is further reduced.
In addition, the present invention also provides embodiment 3, which is different from embodiment 1 or embodiment 2 in that, as shown in fig. 7, an air bag water tank 73 is communicated with the pure water outlet 12, and the air bag water tank 73 is the water storage component. The air-bag water tank 73 includes a tank case, in which a cavity is formed, the cavity has an opening, the opening communicates with the pure water outlet 12 on the housing 10, so that pure water enters the cavity when reaching the opening of the air-bag water tank 73, and at the same time, an elastic film is provided in the cavity, the elastic film divides the cavity into a closed air cavity and a water storage cavity communicating with the pure water outlet 12, pure water enters the water storage cavity, and since there is a large pressure at the pure water end when the filtering device operates, the elastic film is forced to deform, so that the space of the air cavity is reduced, and the air in the air cavity is compressed. When the filter device is stopped, the pressure of the pure water end disappears, the concentrated water outlet 13 is depressurized, the pressure of the air in the air cavity is reduced, and the air is re-expanded to the original volume, and the air bag water tank 73 presses the pure water in the water storage cavity into the central tube 22 in the process because the outlet of the pure water end is closed, and then enters the pure water cavity 60 or the water storage cavity 61, and the filter material 21 in the filter element is washed.
The present invention also provides embodiment 4, which is different from embodiment 3 in that the water storage part further includes a water storage chamber 61, and the air bladder water tank 73 communicates with the water storage chamber 61. Specifically, as shown in fig. 6, the air-bag tank 73 has the same structure as that of embodiment 3, and the water storage chamber 61 has the same structure as that of the pure water chamber 60 in embodiment 1 or embodiment 2, but the inside of the water storage chamber 61 is vacuum. The opening of the air bag water tank 73 is communicated with the top of the water storage cavity 61, pure water enters the water storage cavity 61 through the central pipe 22 when the filtering device operates and then enters the water storage cavity of the air bag water tank 73 to compress the air cavity to reduce the volume, and when the filtering device stops operating, the pressure is unbalanced, the air cavity recovers the original volume, so that raw water in the water storage cavity and the water storage cavity 61 is extruded into the filter element.
The present invention also provides embodiment 5, which is different from embodiment 4 in that air is stored in the water storage chamber 61. Specifically, on the basis of embodiment 4, the water storage chamber 61 is filled with air, the air in the water storage chamber 61 is compressed when water is supplied, the space occupied by the air chamber of the air chamber 73 is also compressed, the air in the water storage chamber 61 is restored to the original volume when water is discharged, the air in the air chamber is also restored to the original volume, and pure water stored in the water storage chamber 61 is squeezed into the filter element. Example 5 has a greater amount of pure water entering the cartridge than example 4.
In addition, the invention also provides an embodiment of the filtering system, which is based on the embodiment 3, and further comprises a raw water inlet pipeline, a pure water outlet pipeline and a concentrated water outlet pipeline, wherein the raw water inlet pipeline is communicated with the raw water inlet 11, an electromagnetic valve and a second pressure pump 71 are arranged on the raw water inlet pipeline, one end of the pure water outlet pipeline is communicated with the pure water outlet 12, the other end of the pure water outlet pipeline is communicated with a water outlet faucet, the concentrated water outlet pipeline is communicated with the concentrated water outlet 13, and a flushing valve is arranged on the concentrated water outlet pipeline.
Specifically, one end of the raw water inlet pipeline is communicated with municipal tap water, the other end of the raw water inlet pipeline is communicated with the raw water inlet 11, an electromagnetic valve and a second pressure pump 71 are arranged in the middle of the raw water inlet pipeline, the electromagnetic valve controls the on-off of the raw water inlet pipeline, the second pressure pump 71 applies pressure to raw water to enable the raw water to enter the filter element under larger pressure, one end of the pure water outlet pipeline is communicated with the pure water outlet 12, the other end of the pure water outlet pipeline is communicated with a water outlet tap, the on-off of the pure water outlet pipeline can be controlled by controlling the water outlet tap, one end of the concentrated water outlet pipeline is communicated with the concentrated water outlet 13, the other end of the concentrated water outlet pipeline is communicated with a concentrated water tank or is directly discharged to a sewer pipeline, and a flushing valve is used for adjusting the water flow of the concentrated water outlet add.
It is also obvious that the filter system can be based on other embodiments of the filter device, for example, the filter flask 74 is the filter device described based on embodiment 1 or embodiment 2, and the filter device comprises the filter flask 74 and the air bag tank 73 based on embodiment 3.
In the embodiment of the filtration system described above, since the air bladder water tank 73 or the water tank is only communicated with the pure water outlet pipe, the overall construction is simpler than the structure of communicating the water storage part with the raw water inlet pipe in the prior art, and the control is not required to be performed by additionally providing a valve.
According to the filtering device and the filtering system, the water storage component is arranged, pure water is stored when the filtering device works, and the water storage component presses the stored pure water to enable the pure water to enter the filter element when the filtering device stops working, so that the filter element is flushed, the ion concentration of water originally existing in the filter element is reduced, and the TDS value of first cup water caused by osmotic pressure is reduced.
The foregoing description of the embodiments and description is presented to illustrate the scope of the invention, but is not to be construed as limiting the scope of the invention. Modifications, equivalents, and other improvements to the embodiments of the invention or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the invention or the teachings of the embodiments, are intended to be included within the scope of the invention, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.

Claims (9)

1.一种过滤装置，包括外壳、滤芯、原水过水路、纯水过水路和浓水过水路，原水过水路包括设于外壳上的原水进水口，纯水过水路包括设于滤芯内的中心管及设于外壳上的纯水出水口，浓水过水路包括设于外壳上的浓水出水口，其特征在于，1. A filtering device, comprising a housing, a filter element, a raw water passage, a pure water passage and a concentrated water passage, wherein the raw water passage comprises a raw water inlet provided on the housing, the pure water passage comprises a central tube provided in the filter element and a pure water outlet provided on the housing, and the concentrated water passage comprises a concentrated water outlet provided on the housing, characterized in that: 所述滤芯底端与原水过水路连通以供原水进入，其顶端与浓水过水路连通以供浓水排出；The bottom end of the filter element is connected to the raw water passage for raw water to enter, and the top end of the filter element is connected to the concentrated water passage for concentrated water to discharge; 此外，还包括储水部件；In addition, it includes water storage components; 所述储水部件与所述的纯水过水路连通，其在过滤装置运行时储存纯水，并在过滤装置停止时利用气压推动储存的纯水通过中心管或滤芯底端进入滤芯以进行冲洗；The water storage component is in communication with the pure water passage, and stores pure water when the filter device is running, and uses air pressure to push the stored pure water into the filter element through the central tube or the bottom of the filter element for flushing when the filter device stops; 所述的储水部件为外壳与滤芯之间的空间形成的纯水腔；所述纯水腔与中心管连通，并与滤芯底端和滤芯顶端隔绝；所述纯水腔中的空气对进入纯水腔中的纯水施加压力。The water storage component is a pure water cavity formed by the space between the shell and the filter element; the pure water cavity is connected to the central tube and isolated from the bottom end and the top end of the filter element; the air in the pure water cavity exerts pressure on the pure water entering the pure water cavity. 2.如权利要求1所述的一种过滤装置，其特征在于，还包括阀门，其装设于纯水腔与滤芯底端或储水腔与滤芯底端之间，并在纯水腔侧或储水腔侧水压大于滤芯底端侧水压时导通。2. A filtering device as described in claim 1, characterized in that it also includes a valve, which is installed between the pure water chamber and the bottom end of the filter element or the water storage chamber and the bottom end of the filter element, and is turned on when the water pressure on the pure water chamber side or the water storage chamber side is greater than the water pressure on the bottom end side of the filter element. 3.如权利要求2所述的一种过滤装置，其特征在于，还包括进水管，其顶端与原水进水口连通，底端与滤芯底端连通；所述的进水管套设于中心管之中，经滤芯过滤后得到的纯水进入中心管与进水管之间的间隙后流至纯水出水口及纯水腔或储水腔。3. A filtering device as described in claim 2, characterized in that it also includes a water inlet pipe, whose top end is connected to the raw water inlet and whose bottom end is connected to the bottom end of the filter element; the water inlet pipe is sleeved in the central tube, and the pure water obtained after filtering by the filter element enters the gap between the central tube and the water inlet pipe and then flows to the pure water outlet and the pure water cavity or the water storage cavity. 4.如权利要求3所述的一种过滤装置，其特征在于，所述的中心管内壁靠近底端的位置有第一限位凸起，所述进水管外壁上的相应位置设有与第一限位凸起匹配的第二限位凸起；所述第二限位凸起用于顶抵第一限位凸起以固定所述的进水管；所述的第一限位凸起沿竖直方向延伸形成密封壁，所述进水管固定于所述中心管时，所述进水管外壁与所述密封壁密封配合。4. A filtering device as described in claim 3, characterized in that a first limiting protrusion is provided on the inner wall of the central tube near the bottom end, and a second limiting protrusion matching the first limiting protrusion is provided at a corresponding position on the outer wall of the water inlet pipe; the second limiting protrusion is used to press against the first limiting protrusion to fix the water inlet pipe; the first limiting protrusion extends in a vertical direction to form a sealing wall, and when the water inlet pipe is fixed to the central tube, the outer wall of the water inlet pipe is sealed and matched with the sealing wall. 5.如权利要求3所述的一种过滤装置，其特征在于，还包括第一密封件，其固接于滤芯底部以隔绝滤芯底端和纯水腔；所述中心管贯穿所述第一密封件以与纯水腔连通，并与第一密封件密封配合。5. A filtering device as described in claim 3, characterized in that it also includes a first sealing member, which is fixed to the bottom of the filter element to isolate the bottom end of the filter element and the pure water chamber; the central tube passes through the first sealing member to communicate with the pure water chamber and is sealed with the first sealing member. 6.如权利要求3所述的一种过滤装置，其特征在于，所述的外壳内侧顶端设有凸出的第一环形部，所述进水管顶端与所述第一环形部的朝内的侧壁密封配合并与所述原水进水口连通；所述的外壳内侧顶端设有与第一环形部同心且位于第一环形部之外的凸出的第二环形部，所述中心管顶端与所述第二环形部朝内的侧壁密封配合并与所述第一环形部朝外的侧壁配合形成与所述纯水出水口连通的水路；还包括第二密封件，其固接于滤芯顶部以隔绝滤芯顶端和纯水腔；所述的外壳内侧顶端设有与第二环形部同心且位于第二环形部之外的第三环形部，所述的第二密封件与所述第三环形部朝内的侧壁密封配合并与所述第二环形部朝外的侧壁配合形成与所述浓水出水口连通的水路。6. A filtering device as described in claim 3, characterized in that the inner top end of the shell is provided with a protruding first annular portion, the top end of the water inlet pipe is sealed with the inward side wall of the first annular portion and is connected with the raw water inlet; the inner top end of the shell is provided with a protruding second annular portion that is concentric with the first annular portion and is located outside the first annular portion, the top end of the center pipe is sealed with the inward side wall of the second annular portion and is cooperated with the outward side wall of the first annular portion to form a water path connected with the pure water outlet; it also includes a second sealing member, which is fixedly connected to the top of the filter element to isolate the top of the filter element and the pure water cavity; the inner top end of the shell is provided with a third annular portion that is concentric with the second annular portion and is located outside the second annular portion, the second sealing member is sealed with the inward side wall of the third annular portion and is cooperated with the outward side wall of the second annular portion to form a water path connected with the concentrated water outlet. 7.如权利要求1所述的一种过滤装置，其特征在于，所述的外壳内侧底端设有支撑条；所述支撑条顶抵所述滤芯以使中心管连通纯水腔或储水腔。7. A filtering device as described in claim 1, characterized in that a support bar is provided at the bottom end of the inner side of the shell; the support bar presses against the filter element to connect the central tube to the pure water chamber or the water storage chamber. 8.一种过滤装置，包括外壳、滤芯、原水过水路、纯水过水路和浓水过水路，原水过水路包括设于外壳上的原水进水口，纯水过水路包括设于滤芯内的中心管及设于外壳上的纯水出水口，浓水过水路包括设于外壳上的浓水出水口，其特征在于，8. A filtering device, comprising a housing, a filter element, a raw water passage, a pure water passage and a concentrated water passage, wherein the raw water passage comprises a raw water inlet provided on the housing, the pure water passage comprises a central tube provided in the filter element and a pure water outlet provided on the housing, and the concentrated water passage comprises a concentrated water outlet provided on the housing, characterized in that: 所述滤芯底端与原水过水路连通以供原水进入，其顶端与浓水过水路连通以供浓水排出；The bottom end of the filter element is connected to the raw water passage for raw water to enter, and the top end of the filter element is connected to the concentrated water passage for concentrated water to discharge; 此外，还包括储水部件；In addition, it includes water storage components; 所述储水部件与所述的纯水过水路连通，其在过滤装置运行时储存纯水，并在过滤装置停止时利用气压推动储存的纯水通过中心管或滤芯底端进入滤芯以进行冲洗；The water storage component is in communication with the pure water passage, and stores pure water when the filter device is running, and uses air pressure to push the stored pure water into the filter element through the central tube or the bottom of the filter element for flushing when the filter device stops; 所述的储水部件包括位于外壳外部且与纯水进水口连通的气囊水箱，其具有一空气腔及用于密封空气腔的弹性薄膜；过滤装置运行时纯水进入气囊水箱并通过弹性薄膜挤压空气腔中的空气以储能，过滤装置停止时被压缩的空气膨胀并通过弹性薄膜挤压储存的纯水使其进入滤芯；The water storage component includes an air bag water tank located outside the housing and connected to the pure water inlet, which has an air cavity and an elastic film for sealing the air cavity; when the filter device is running, pure water enters the air bag water tank and squeezes the air in the air cavity through the elastic film to store energy; when the filter device stops, the compressed air expands and squeezes the stored pure water through the elastic film to enter the filter element; 所述的储水部件还包括一储水腔，其由所述的外壳与滤芯之间的空间形成，其与中心管连通，并与滤芯底端和滤芯顶端隔绝。The water storage component also includes a water storage cavity, which is formed by the space between the shell and the filter element, is communicated with the central tube, and is isolated from the bottom end and the top end of the filter element. 9.一种过滤系统，其特征在于，包括如权利要求1-8任一项所述的一种过滤装置；9. A filtering system, characterized in that it comprises a filtering device according to any one of claims 1 to 8; 此外，还包括：Additionally, it includes: 原水进水管路，其与所述的原水进水口连通，其上设有电磁阀与压力泵；A raw water inlet pipeline, which is connected to the raw water inlet and is provided with a solenoid valve and a pressure pump; 纯水出水管路，其一端与所述的纯水出水口连通，另一端连通出水龙头；A pure water outlet pipeline, one end of which is connected to the pure water outlet, and the other end of which is connected to the water outlet faucet; 浓水出水管路，其与所述的浓水出水口连通，其上设有冲洗阀。The concentrated water outlet pipeline is connected with the concentrated water outlet and is provided with a flushing valve.
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113511705B (en) * 2021-04-01 2022-07-05 广东道盟智能科技有限公司 Reverse osmosis filter core and water purifier
CN114146569A (en) * 2021-05-25 2022-03-08 追觅创新科技(苏州)有限公司 Reverse osmosis filter element and water purifier
CN114409017A (en) * 2022-01-06 2022-04-29 佛山市美的清湖净水设备有限公司 Filter core and water purification system
CN115159707B (en) * 2022-07-29 2023-09-22 佛山市美的清湖净水设备有限公司 Filter element and water purifying equipment
CN218478584U (en) * 2022-08-31 2023-02-14 广东领尚净水科技有限公司 Filter element structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108726715A (en) * 2018-07-25 2018-11-02 珠海格力电器股份有限公司 Water treatment system and water purification unit
CN211753963U (en) * 2019-12-06 2020-10-27 九牧厨卫股份有限公司 Filter equipment and filtration system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3051607B2 (en) * 1993-08-19 2000-06-12 シーケーディ株式会社 Filter device
CN2523797Y (en) * 2001-12-03 2002-12-04 李志新 Full-automatic water storage device
CN102121260A (en) * 2010-01-11 2011-07-13 葛洲坝集团第一工程有限公司 Multi-water-source multi-way non-negative-pressure water supplying method and device
CN201687044U (en) * 2010-01-11 2010-12-29 葛洲坝集团第一工程有限公司 A non-negative pressure secondary water supply high pressure water storage tank
CN205528040U (en) * 2016-01-25 2016-08-31 日出东方太阳能股份有限公司 Water -saving type reverse osmosis water purifier
CN106139715B (en) * 2016-08-19 2018-11-02 苏州立升净水科技有限公司 Upside-down mounting filter core
CN206444461U (en) * 2016-12-27 2017-08-29 北京四季沐歌太阳能技术集团有限公司 A kind of water manufacturing system of utilization pure water rinsing milipore filter
CN108569784B (en) * 2017-03-07 2023-09-05 佛山市顺德区美的饮水机制造有限公司 water purification system
CN209438389U (en) * 2018-08-06 2019-09-27 九阳股份有限公司 The reverse osmosis element kit of lateral flow type
CN209468218U (en) * 2018-12-25 2019-10-08 珠海格力电器股份有限公司 Water purification system
CN209602246U (en) * 2019-01-30 2019-11-08 四川悠服科技有限公司 Pure water machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108726715A (en) * 2018-07-25 2018-11-02 珠海格力电器股份有限公司 Water treatment system and water purification unit
CN211753963U (en) * 2019-12-06 2020-10-27 九牧厨卫股份有限公司 Filter equipment and filtration system

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