CN113368570B - Filter element assembly and water purification system - Google Patents
Filter element assembly and water purification system Download PDFInfo
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- CN113368570B CN113368570B CN202110623009.8A CN202110623009A CN113368570B CN 113368570 B CN113368570 B CN 113368570B CN 202110623009 A CN202110623009 A CN 202110623009A CN 113368570 B CN113368570 B CN 113368570B
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- filter element
- water passing
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- flow channel
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 407
- 238000000746 purification Methods 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 17
- 230000004323 axial length Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 description 33
- 238000001223 reverse osmosis Methods 0.000 description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 10
- 230000004907 flux Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
Abstract
The invention discloses a filter element assembly and a water purification system, wherein the filter element assembly comprises a shell, a first filter element and a second filter element, the shell is in a vertically extending column shape, the surface of the shell is provided with a first water passing port, a second water passing port, a third water passing port and a fourth water passing port, a first flow passage and a second flow passage which are mutually independent are arranged in the shell, the first filter element is arranged in the first flow passage, a first water passing flow passage is formed between the first water passing port and the first filter element, and a second water passing flow passage is formed between the first filter element and the second water passing port; the second filter element is arranged in the second flow channel, a third water passing flow channel is formed between the third water passing port and the second filter element, and a fourth water passing flow channel is formed between the second filter element and the fourth water passing port; the first water passing flow channel, the second water passing flow channel, the third water passing flow channel and the fourth water passing flow channel extend along the vertical direction, and the first water passing flow channel and the second water passing flow channel are arranged between the third water passing flow channel and the fourth water passing flow channel. The technical scheme of the invention simplifies the waterway structure.
Description
The application is a divisional application with application date of 2017, 03 and 13, application number of 201710149536.3 and invention name of 'filter element assembly and water purification system'.
Technical Field
The invention relates to the technical field of water purification, in particular to a filter element assembly and a water purification system.
Background
In order to improve the filtering effect of the filter element assembly, the composite filter element assembly filled with various filtering materials is adopted in the current market, and the various filtering materials are compounded together to realize various filtering functions. However, in the existing composite filter element assembly, a plurality of filter materials share the water inlet and the water outlet, and the water path is single, so that the filter element assembly only can realize the function composition of the plurality of filter materials, but cannot control the filtering sequence of the plurality of filter materials. When multiple paths of water need to be filtered simultaneously or the same path of water needs to be filtered sequentially according to a certain sequence, a plurality of filter element assemblies still need to be arranged. For example, in a water purification system, before water is filtered by a main filter element, prefiltering is often required to remove large-particle impurities and the like in water, and after the water is filtered by the main filter element, postfiltration is often required to further improve the water quality. Wherein, leading filterable and postposition filterable water quality is different, and correspondingly, the filter material of filter element group spare is also different. Among the current water purification system, need set up leading filter element group spare and rearmounted filter element group spare respectively to different quality of water, lead to water purification system to include tertiary or level four filter element group spare usually for water purification system's water route is complicated, and is bulky, and is with high costs, and assembles the mistake easily when installation and maintenance.
Disclosure of Invention
The invention mainly aims to provide a filter element assembly, aims to solve the problem of single water channel in the filter element assembly, and provides the filter element assembly capable of controlling the filtering sequence so as to simplify the water channel structure of a water purification system, reduce the volume, reduce the cost and improve the reliability of assembly.
In order to achieve the purpose, the filter element assembly provided by the invention comprises a shell, a first filter element and a second filter element, wherein the shell is in a column shape extending up and down, a first water passing port, a second water passing port, a third water passing port and a fourth water passing port are formed in the surface of the shell, a first flow channel and a second flow channel which are independent of each other are arranged in the shell, the first flow channel is communicated with the first water passing port and the second water passing port, and the second flow channel is communicated with the third water passing port and the fourth water passing port; the first filter element is arranged in the first flow channel, a first water passing flow channel of the first flow channel is formed between the first water passing port and the first filter element, and a second water passing flow channel of the first flow channel is formed between the first filter element and the second water passing port; the second filter element is arranged in the second flow channel, a third water passing flow channel of the second flow channel is formed between the third water passing opening and the second filter element, and a fourth water passing flow channel of the second flow channel is formed between the second filter element and the fourth water passing opening; the first water passing flow channel, the second water passing flow channel, the third water passing flow channel and the fourth water passing flow channel extend in the vertical direction, and the first water passing flow channel and the second water passing flow channel are arranged between the third water passing flow channel and the fourth water passing flow channel.
Preferably, the first water passing port, the second water passing port, the third water passing port and the fourth water passing port are arranged at the upper end of the housing.
Preferably, the filter element assembly comprises an inner tube, a middle tube and an outer tube, the inner tube being disposed inside the housing; the middle pipe is arranged in the shell and sleeved outside the inner pipe; the outer pipe is arranged in the shell and sleeved outside the middle pipe; the first filter element is arranged between the outer pipe and the middle pipe; the second filter element is arranged between the shell and the inner tube; the first filter element is arranged above the second filter element.
Preferably, the filter element assembly further comprises a first end cover, the upper end of the first filter element is abutted to the lower portion of the first end cover in a sealing mode, a first through hole is formed in the first end cover, the upper end of the middle pipe is connected with the first through hole in a sealing mode, the middle pipe is communicated with the first through hole, the inner pipe penetrates through the first through hole, and a water passing gap is formed between the inner pipe and the first through hole.
Preferably, the filter element assembly further comprises a second end cap, the lower end of the first filter element is in sealing butt joint with the upper side of the second end cap, and the upper end of the second filter element is in sealing butt joint with the lower side of the second end cap.
Preferably, a second through hole is formed in the second end cover, the middle pipe is connected to the second through hole in a sealing mode, a first overflowing hole is formed in the side face of the middle pipe and located between the first end cover and the second end cover, and the inner pipe and the middle pipe are connected to the lower portion of the first overflowing hole in a sealing mode.
Preferably, an inner sleeve, a middle sleeve and an outer sleeve are arranged on the inner surface of the upper end of the shell from inside to outside, the fourth water passing port is located on the inner side of the inner sleeve, the second water passing port is located between the inner sleeve and the middle sleeve, the first water passing port is located between the middle sleeve and the outer sleeve, and the third water passing port is located between the outer sleeve and the shell; the upper end of the outer pipe comprises a connecting part extending inwards, the connecting part is provided with an outer connecting pipe and an inner connecting pipe, the outer connecting pipe is connected with the outer sleeve in a sealing mode, the upper end of the inner connecting pipe is connected with the middle sleeve in a sealing mode, the lower end of the inner connecting pipe is connected with the first end cover in a sealing mode, the connecting part is provided with a third overflowing hole, the third overflowing hole is located between the outer connecting pipe and the inner connecting pipe, the third overflowing hole is communicated with the first overflowing flow channel, and the lower end of the outer pipe is connected to the outer side of the second end cover in a sealing mode; the upper end of the inner tube is hermetically connected with the inner sleeve.
Preferably, the filter element assembly further comprises a third end cap, and the lower end of the second filter element is in sealing abutment with the upper side of the third end cap.
Preferably, the lower end of the inner pipe is provided with a second overflowing hole, and the second overflowing hole is positioned between the second end cover and the third end cover.
Preferably, the inner surface of the lower end of the shell is provided with a fixing rib, the fixing rib is enclosed to form a fixing groove, the lower end of the third end cover is provided with a fixing buckle, and the fixing buckle is clamped in the fixing groove.
Preferably, the housing includes a first housing and a second housing detachably connected to a lower side of the first housing.
The invention also provides a water purification system, which comprises a filter element assembly, wherein the filter element assembly comprises a shell, a first filter element and a second filter element, the shell is in a columnar shape extending up and down, the surface of the shell is provided with a first water passing port, a second water passing port, a third water passing port and a fourth water passing port, a first flow channel and a second flow channel which are mutually independent are arranged in the shell, the first flow channel is communicated with the first water passing port and the second water passing port, and the second flow channel is communicated with the third water passing port and the fourth water passing port; the first filter element is arranged in the first flow channel, a first water passing flow channel of the first flow channel is formed between the first water passing port and the first filter element, and a second water passing flow channel of the first flow channel is formed between the first filter element and the second water passing port; the second filter element is arranged in the second flow channel, a third water passing flow channel of the second flow channel is formed between the third water passing opening and the second filter element, and a fourth water passing flow channel of the second flow channel is formed between the second filter element and the fourth water passing opening; the first water passing flow channel, the second water passing flow channel, the third water passing flow channel and the fourth water passing flow channel extend in the vertical direction, and the first water passing flow channel and the second water passing flow channel are arranged between the third water passing flow channel and the fourth water passing flow channel.
Preferably, the water purification system further comprises a reverse osmosis filter element and a booster pump, wherein a raw water inlet end of the reverse osmosis filter element is in butt joint with a water outlet of the first flow channel, a pure water outlet end of the reverse osmosis filter element is in butt joint with a water inlet of the second flow channel, or a raw water inlet end of the reverse osmosis filter element is in butt joint with a water outlet of the second flow channel, and a pure water outlet end of the reverse osmosis filter element is in butt joint with a water inlet of the first flow channel; the booster pump is located the filter element group spare with between the raw water intake end of reverse osmosis filter core.
According to the technical scheme, the first flow channel and the second flow channel which are independent are arranged in the shell of the filter element assembly, so that two water paths which are not influenced mutually are formed. The first flow channel is communicated with a first water passing port and a second water passing port on the surface of the shell, and the first filter element is arranged between the first water passing channel and the second water passing channel to realize filtration; the second flow channel is communicated with a third water passing port and a fourth water passing port on the surface of the shell, and the second filter element is arranged between the third water passing channel and the fourth water passing channel to realize filtering. Because the first flow passage and the second flow passage of the filter element assembly are mutually independent, when the filter element assembly is used, two paths of water can be simultaneously filtered, and each path of water respectively occupies one flow passage; or, filtering the same path of water for multiple times according to the sequence. The filter element assembly comprises a first water flowing channel, a second water flowing channel, a third water flowing channel and a fourth water flowing channel, wherein the first water flowing channel and the second water flowing channel extend along the vertical direction in a cylindrical shell extending from top to bottom, the first water flowing channel and the second water flowing channel are arranged between the third water flowing channel and the fourth water flowing channel, the space in the shell is fully utilized, the filter element assembly is compact in structure, clear in water path, low in cost and convenient to assemble and maintain, the structure of a water purification system using the filter element assembly is further simplified, the front filter element and the rear filter element are arranged in the filter element assembly together, the number of stages of the filter element assembly required in the water purification system is reduced, the cost is reduced, and the assembly and the maintenance of the water purification system are simpler and more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a first flow channel configuration of an embodiment of a filter element assembly of the present invention;
FIG. 2 is a schematic view of a second flow channel configuration of an embodiment of the filter cartridge assembly of the present invention;
FIG. 3 is a top view of one embodiment of a filter element assembly of the present invention;
fig. 4 is a schematic structural diagram of a water purification system according to an embodiment of the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
100 | |
| 111 | The first |
112 | Second |
| 121 | Third |
122 | Fourth |
| 130 | |
140 | |
| 150 | |
160 | |
| 170 | |
180 | |
| 200 | |
210 | Connecting |
| 211 | Outer connecting |
212 | Inner connecting |
| 213 | Third overflowing |
300 | |
| 310 | First overflowing |
400 | |
| 410 | Second overflowing |
510 | |
| 511 | First water |
512 | Second water |
| 520 | |
521 | Third water |
| 522 | Fourth water |
610 | |
| 620 | |
710 | First end cap |
| 711 | A |
720 | |
| 721 | Second via |
730 | |
| 731 | Fixing |
20 | Reverse |
| 30 | |
40 | Waste water valve |
The arrows in fig. 1 and 2 indicate the direction of water flow.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a filter element assembly 10.
In the embodiment of the present invention, as shown in fig. 1 and fig. 2, the filter element assembly 10 includes a housing 100, a first filter element 610 and a second filter element 620, the housing 100 is in a column shape extending vertically, a first water passing port 111, a second water passing port 112, a third water passing port 121 and a fourth water passing port 122 are opened on a surface of the housing 100, a first flow channel 510 and a second flow channel 520 which are independent of each other are provided inside the housing 100, the first flow channel 510 is communicated with the first water passing port 111 and the second water passing port 112, and the second flow channel 520 is communicated with the third water passing port 121 and the fourth water passing port 122; the first filter element 610 is arranged in the first flow channel 510, a first water passing flow channel 511 of the first flow channel 510 is formed between the first water passing opening 111 and the first filter element 610, and a second water passing flow channel 512 of the first flow channel 510 is formed between the first filter element 610 and the second water passing opening 112; the second filter element 620 is arranged in the second flow passage 520, a third water passing flow passage 521 of the second flow passage 520 is formed between the third water passing port 121 and the second filter element 620, and a fourth water passing flow passage 522 of the second flow passage 520 is formed between the second filter element 620 and the fourth water passing port 122; the first, second, third and fourth overflow channels 511, 512, 521 and 522 all extend in the vertical direction, and the first and second overflow channels 511, 512 are disposed between the third and fourth overflow channels 521, 522.
Specifically, the independent first flow channel 510 and the independent second flow channel 520 inside the housing 100 are not communicated with each other, so that when the filter element assembly 10 is used, two paths of water can be filtered simultaneously, and each path of water occupies one flow channel. Or, the same path of water is filtered for multiple times according to the sequence, and the water is filtered through one flow passage of the filter element assembly 10 and then directly returned or returned to the other flow passage of the filter element assembly 10 after being treated for filtering. In the following, when referring to the filtering sequence, the description will be given by taking the case that water passes through the first filter element 610 and then is filtered by the second filter element 620, that is, the first filter element 610 is a front filter element, and the second filter element 620 is a rear filter element, but it should be noted that the second filter element 620 may also be a front filter element and the first filter element 610 is a rear filter element according to actual situations, and details thereof are not repeated herein.
Wherein, first filter core 610 or second filter core 620 are cotton filter core of PP, active carbon filter core or the cotton and active carbon composite filter core of PP. PP wool is typically used to filter large particulate impurities from water, and activated carbon is typically used to adsorb small particulate impurities from water. Therefore, the PP cotton is mostly used in a front filter element to carry out rough filtration on water; activated carbon is mostly used in a post-filter element to further improve water quality; in the PP cotton and activated carbon composite filter element, water flow is designed to flow through the PP cotton and then flow through the activated carbon, so that the combination of the filtering function is realized, and the filtering effect is improved.
In the filter element assembly 10, the first flow channel 510 is communicated with the first water passing port 111 and the second water passing port 112 on the surface of the housing 100, the first filter element 610 is arranged in the first flow channel 510, a first water passing channel 511 of the first flow channel 510 is formed between the first water passing port 111 and the first filter element 610, a second water passing channel 512 of the first flow channel 510 is formed between the second water passing port 112 and the first filter element 610, the first water passing channel 511 and the second water passing channel 512 are separated by the first filter element 610, that is, water before and after being filtered by the first filter element 610 flows in the first water passing channel 511 and the second water passing channel 512 respectively, and water in the first water passing channel 511 and the second water passing channel 512 can be communicated with each other only by the first filter element 610, so as to prevent the water before and after being filtered from being directly mixed to cause filtering failure. In the first flow passage 510, the water flow can flow into the filter element assembly 10 from the first water passage 111, flow to the first filter element 610 through the first water passage 511, flow to the second water passage 112 through the second water passage 512 after being filtered by the first filter element 610, and flow out of the filter element assembly 10 from the second water passage 112. Alternatively, the water flow can also flow in the reverse direction, i.e. the water flows into the filter core assembly 10 from the second water passing port 112, flows to the first filter core 610 through the second water passing channel 512, flows to the first water passing port 111 through the first water passing channel 511 after being filtered by the first filter core 610, and flows out of the filter core assembly 10 from the first water passing port 111. Hereinafter, the case of the first water flow will be described as an example, and the case of the second water flow will not be described again.
In the filter element assembly 10, the second flow channel 520 is communicated with the third water passing port 121 and the fourth water passing port 122 on the surface of the housing 100, the second filter element 620 is arranged in the second flow channel 520, the third water passing channel 521 of the second flow channel 520 is formed between the third water passing port 121 and the second filter element 620, and the fourth water passing channel 522 of the second flow channel 520 is formed between the fourth water passing port 122 and the second filter element 620, that is, water before and after being filtered by the second filter element 620 flows in the third water passing channel 521 and the fourth water passing channel 522 respectively, and water in the third water passing channel 521 and the fourth water passing channel 522 can be communicated with each other only by the second filter element 620, so as to prevent the water before and after being filtered from being directly mixed to cause filter failure. In the second flow passage 520, the water flow can flow into the filter element assembly 10 from the third water passing port 121, flow to the second filter element 620 through the third water passing passage 521, flow to the fourth water passing port 122 through the fourth water passing passage 522 after being filtered by the second filter element 620, and flow out of the filter element assembly 10 from the fourth water passing port 122. Alternatively, the water flow may also flow in the reverse direction, that is, the water flow flows into the filter element assembly 10 from the fourth water passing port 122, flows to the second filter element 620 through the fourth water passing channel 522, flows to the third water passing port 121 through the third water passing channel 521 after being filtered by the second filter element 620, and flows out of the filter element assembly 10 from the third water passing port 121. Hereinafter, the case of the first water flow will be described as an example, and the case of the second water flow will not be described again.
The housing 100 of the filter element assembly 10 is shaped like a column extending vertically, and the first water passing flow passage 511, the second water passing flow passage 512, the third water passing flow passage 521 and the fourth water passing flow passage 522 extend vertically inside the housing 100. The center direction close to the cross section of the columnar shell is taken as the inner direction, and the center direction far away from the cross section of the columnar shell is taken as the outer direction. The first flow passage 511, the second flow passage 512, the third flow passage 521, or the fourth flow passage 522 are closed or opened in a ring shape in a cross section perpendicular to the extending direction of the housing 100, that is, the water flows up and down along a complete cylindrical surface or a part of the cylindrical surface inside the housing 100. The flux of each of the runners increases as the cross-sectional area of the runner increases. In comparison, when the cross sections of the first water passing flow passage 511, the second water passing flow passage 512, the third water passing flow passage 521 and the fourth water passing flow passage 522 are all in a closed ring shape, that is, when the water flows in the first water passing flow passage 511, the second water passing flow passage 512, the third water passing flow passage 521 and the fourth water passing flow passage 522 respectively flow up and down along a complete cylindrical surface inside the housing 100, the distribution of the water flow inside the housing 100 is more uniform and stable, the space utilization inside the housing 100 is higher, which is beneficial to improving the flux of the filter element assembly 10 and improving the filtering efficiency, and will be specifically explained in detail later.
Further, the first water passing flow passage 511, the second water passing flow passage 512, the third water passing flow passage 521 and the fourth water passing flow passage 522 may be cylindrical, so as to reduce the deposition of impurities in the water passing flow passages and prolong the service life of the filter element assembly 10.
The first and second water passing flow passages 511 and 512 are disposed between the third and fourth water passing flow passages 521 and 522, and the first, second, third and fourth water passing flow passages 511, 512, 521 and 522 are isolated by the internal structure of the housing 100, so as to prevent mutual interference between water paths. Through the above arrangement, the space inside the casing 100 can be fully utilized, the structure of the filter element assembly 10 is compact, the cost is reduced, the clear water path structure of the filter element assembly 10 is ensured, and the assembly and the maintenance are convenient.
In the technical solution of the present invention, the first flow channel 510 and the second flow channel 520 which are independent of each other are disposed inside the housing 100 of the filter element assembly 10, so as to form two water paths which do not affect each other. The first flow passage 510 is communicated with the first water passing port 111 and the second water passing port 112 on the surface of the housing 100, and the first filter element 610 is arranged between the first water passing flow passage 511 and the second water passing flow passage 512 to realize filtration; the second flow passage 520 is communicated with the third and fourth water passing openings 121 and 122 on the surface of the housing 100, and the second filter element 620 is disposed between the third and fourth water passing passages 521 and 522 to perform filtering. Because the first flow passage 510 and the second flow passage 520 of the filter element assembly 10 are independent of each other, when the filter element assembly 10 is used, two paths of water can be filtered simultaneously, and each path of water occupies one flow passage respectively; or, filtering the same path of water for multiple times according to the sequence. The first water passing flow passage 511, the second water passing flow passage 512, the third water passing flow passage 521 and the fourth water passing flow passage 522 extend in the vertical direction in the vertically extending cylindrical shell 100, and the first water passing flow passage 511 and the second water passing flow passage 512 are arranged between the third water passing flow passage 521 and the fourth water passing flow passage 522, so that the space in the shell 100 is fully utilized, the filter element assembly 10 is compact in structure, clear in water path, low in cost and convenient to assemble and maintain, the structure of a water purification system using the filter element assembly 10 is further simplified, the front filter element and the rear filter element are arranged in the filter element assembly 10 together, the number of stages of the filter element assembly 10 required in the water purification system is reduced, the cost is reduced, and the assembly and the maintenance of the water purification system are simpler and more convenient.
In an embodiment of the present invention, as shown in fig. 3, the first water passing port 111, the second water passing port 112, the third water passing port 121, and the fourth water passing port 122 are provided at an upper end of the housing 100. Through locating the same end of casing 100 with the mouth of crossing of filter element group spare 10, when assembling filter element group spare 10 to water purification system in, many water routes only need be connected to the same end of filter element group spare 10, furthermore, with first mouth of a river 111, second mouth of a river 112, the upper end of casing 100 is located to third mouth of a river 121 and fourth mouth of a river 122, can increase the operating space in the connection process, the simplified operation, be convenient for assembly and maintenance of filter element group spare 10, through the first mouth of a river 111 of suitable sign, second mouth of a river 112, third mouth of a river 121 and fourth mouth of a river 122, can also avoid the mistake in the filter element group spare 10 assembling process.
In the present invention, the sealing connection can be realized by means of abutment, O-ring connection, or the like.
In the present embodiment, as shown in fig. 1 and fig. 2, the filter element assembly 10 includes an inner tube 400, a middle tube 300 and an outer tube 200 disposed inside the casing 100, the middle tube 300 is sleeved outside the inner tube 400, the outer tube 200 is sleeved outside the middle tube 300, the first filter element 610 is disposed between the outer tube 200 and the middle tube 300, the second filter element 620 is disposed between the casing 100 and the inner tube 400, and the first filter element 610 is disposed above the second filter element 620. Wherein, the inner tube 400, the middle tube 300 and the outer tube 200 are provided with openings at both ends. A first water flow channel 511, a second water flow channel 512, a third water flow channel 521 and a fourth water flow channel 522 are isolated by the inner pipe 400, the middle pipe 300, the outer pipe 200 and the shell 100, the first filter element 610 is arranged between the outer pipe 200 and the middle pipe 300, meanwhile, the first water flow channel 511 and the second water flow channel 512 are arranged, the second filter element 620 is arranged between the shell 100 and the inner pipe 400, meanwhile, the third water flow channel 521 and the fourth water flow channel 522 are arranged, and water flows through the first filter element 610 and the second filter element 620 along the lateral direction to realize filtration. First filter core 610 and second filter core 620 are arranged along upper and lower direction, and is concrete, and the top of second filter core 620 is located to first filter core 610 to the inside space of make full use of casing 100 increases filter area, improves the filter effect. The first filter element 610 or the second filter element 620 is cylindrical, and further, is disposed in the casing 100 in a cylindrical shape, and the longer the extension length of the first filter element 610 or the second filter element 620 in the vertical direction is, the larger the corresponding filtering area is, and the larger the filtering flux is. In a reverse osmosis water purification system, the length of the first filter element 610 is longer than that of the second filter element 620, that is, the filter area of the front filter element is larger than that of the rear filter element, and in the reverse osmosis water purification system, the raw water flux before reverse osmosis filtration is larger than the pure water flux after reverse osmosis filtration, so that the filter flux of the front filter element for filtering raw water is larger than that of the rear filter element for filtering pure water, thereby meeting the actual filtration requirement.
The filter element assembly 10 further comprises a first end cap 710, the upper end of the first filter element 610 is in sealed and abutted connection with the lower part of the first end cap 710, on one hand, the water in the first water flow passage 511 and the second water flow passage 512 is prevented from being directly communicated at the upper end of the first filter element 610 to cause filtration failure, and on the other hand, the first filter element 610 is fixed. A first through hole 711 is formed in the first end cover 710, the upper end of the middle pipe 300 is hermetically connected with the first through hole 711, the middle pipe 300 is communicated with the first through hole 711, the inner pipe 400 penetrates through the first through hole 711, and a water passing gap is formed between the inner pipe 400 and the first through hole 711, so that the second water passing flow passage 512 is communicated with the second water passing port 112, and the second water passing flow passage 512 and the fourth water passing flow passage 522 are isolated.
The filter element assembly 10 further comprises a second end cap 720, the lower end of the first filter element 610 is in sealing and abutting connection with the upper side of the second end cap 720, and the upper end of the second filter element 620 is in sealing and abutting connection with the lower side of the second end cap 720, so that on one hand, the water in the first water flow passage 511 and the second water flow passage 512 is prevented from being directly communicated at the lower end of the first filter element 610, and the filtration failure is avoided, and on the other hand, the water in the third water flow passage 521 and the fourth water flow passage 522 is prevented from being directly communicated at the upper end of the second filter element 620, and the filtration failure is avoided.
The filter element assembly 10 further comprises a third end cap 730, and the lower end of the second filter element 620 is in sealing and abutting contact with the upper side of the third end cap 730, so as to prevent the water in the third water flow passage 521 and the fourth water flow passage 522 from being directly communicated at the lower end of the second filter element 620, thereby avoiding the filtering failure. In addition, the third end cap 730 also functions to support the second filter element 620 to make the internal structure of the filter cartridge assembly 10 more stable.
As shown in fig. 1, the first water flow passage 511 is isolated by the outer tube 200, the first filter element 610, the first end cap 710 and the second end cap 720, and the second water flow passage 512 is isolated by the inner tube 400, the first filter element 610, the first end cap 710 and the second end cap 720. At least a portion of the middle tube 300 is located in the second overflow channel 512, and in order to prevent the middle tube 300 from obstructing the water flowing from the first filter element 610 to the second overflow port 112 through the second overflow channel 512, a first overflow hole 310 may be formed on the surface of the middle tube 300. In the embodiment, the second end cap 720 is provided with a second through hole 721 therein, and the middle tube 300 is hermetically connected to the second through hole 721 to seal the bottom end of the middle tube 300 and isolate the first flow channel 510 from the second flow channel 520. The first overflowing hole 310 is opened at the side of the middle pipe 300, and the first overflowing hole 310 is located between the first end cap 710 and the second end cap 720, so that the water filtered by the first filter element 610 between the first filter element 610 and the middle pipe 300 flows from the first overflowing hole 310 to between the inner pipe 400 and the middle pipe 300 and flows out of the filter element assembly 10 from the second water passing port 112. The inner pipe 400 and the middle pipe 300 are sealingly connected below the first overflowing hole 310 to isolate the first flow passage 510 from the second flow passage 520. Further, a plurality of first overflowing holes 310 are formed in the side surface of the middle pipe 300 to increase the filtering flux.
It should be noted that the first overflowing hole 310 may be opened at the lower end of the middle pipe 300, and the first overflowing hole 310 is located between the first end cap 710 and the second end cap 720, which is relatively simple in process, but the corresponding water flux is small.
As shown in fig. 2, the third water flow passage 521 is isolated by the housing 100, the outer tube 200, the second filter element 620, the first cap 710, the second cap 720 and the third cap 730, and the fourth water flow passage 522 is isolated by the inner tube 400, the second filter element 620, the second cap 720 and the third cap 730. At least a portion of the inner tube 400 is located in the fourth water passing flow passage 522, and in order to prevent the inner tube 400 from obstructing the water flowing from the second filter element 620 to the fourth water passing opening 122 through the fourth water passing flow passage 522, a second flow passing hole 410 may be formed in the surface of the inner tube 400. In this embodiment, the second overflowing hole 410 is opened at the lower end of the inner pipe 400, and the second overflowing hole 410 is located between the second end cap 720 and the third end cap 730, so that the water filtered by the second filter element 620 between the second filter element 620 and the inner pipe 400 flows from the second overflowing hole 410 to the inside of the inner pipe 400 and flows out of the filter element assembly 10 from the fourth water passing opening 122.
It should be noted that the lower end of the inner tube 400 may be connected to the third end cap 730 in a sealing manner, and the side surface of the inner tube 400 is provided with the second overflowing hole 410 to communicate the fourth water flowing channel 522 with the fourth overflowing hole 122.
In this embodiment, the housing 100 includes a first housing 170 and a second housing 180, and the second housing 180 is detachably connected to a lower portion of the first housing 170, so as to be easily disassembled and assembled during the assembly and maintenance of the filter cartridge assembly 10, thereby assembling, replacing, and maintaining the internal structure of the filter cartridge assembly 10.
Further, an inner sleeve 150, a middle sleeve 140 and an outer sleeve 130 are arranged on the inner surface of the upper end of the housing 100 from inside to outside, the fourth water passing port 122 is located inside the inner sleeve 150, the second water passing port 112 is located between the inner sleeve 150 and the middle sleeve 140, the first water passing port 111 is located between the middle sleeve 140 and the outer sleeve 130, and the third water passing port 121 is located between the outer sleeve 130 and the housing 100; the upper end of the outer tube 200 includes a connection part 210 extending inward, the connection part 210 is provided with an outer connection pipe 211 and an inner connection pipe 212, the outer connection pipe 211 is hermetically connected with the outer sleeve 130 to isolate a third water flow passage 521 and a first water flow passage 511, the upper end of the inner connection pipe 212 is hermetically connected with the middle sleeve 140, the lower end of the inner connection pipe 212 is hermetically connected with the first end cap 710 to isolate a second water flow passage 512 and the first water flow passage 511, the connection part 210 is provided with a third overflow hole 213, the third overflow hole 213 is located between the outer connection pipe 211 and the inner connection pipe 212, and the third overflow hole 213 is communicated with the first water flow passage 511 to avoid blocking water from flowing from the first water flow passage 511 to the first water passing opening 111, and the lower end of the outer tube 200 is hermetically connected to the outer side of the second end cap 720 to isolate the third water flow passage 521 and the first water flow passage 511; the upper end of the inner tube 400 is sealingly connected to the inner sleeve 150 to isolate the second water flow passage 512 from the fourth water flow passage 522. As shown in fig. 1, in the first flow passage 510, water enters the filter element assembly 10 from the first water passing port 111, passes through between the outer sleeve 130 and the middle sleeve 140, between the outer connecting pipe 211 and the inner connecting pipe 212, between the third flow holes 213, between the outer pipe 200 and the first filter element 610, between the first filter element 610 and the middle pipe 300, between the first flow holes 310, between the middle pipe 300 and the inner pipe 400, between the first through holes 711, between the inner connecting pipe 212 and the inner sleeve 150, and flows out of the filter element assembly 10 from the second water passing port 112. As shown in fig. 2, in the second flow passage 520, water enters the filter element assembly 10 from the third water passing port 121, and flows out of the filter element assembly 10 from the fourth water passing port 122 through between the housing 100 and the outer sleeve 130, between the housing 100 and the outer pipe 200, between the housing 100 and the second filter element 620, between the second filter element 620, the second filter element 620 and the inner pipe 400, the second overflowing hole 410, the inside of the inner pipe 400, the inside of the inner sleeve 150.
Further, the inner surface of the lower end of the casing 100 is provided with a fixing rib 160, the fixing rib 160 encloses to form a fixing groove, the lower end of the third end cap 730 is provided with a fixing buckle 731, and the fixing buckle 731 is clamped in the fixing groove. To secure the third end cap 730 in the housing 100.
The invention further provides a water purification system, which comprises the filter element assembly, the specific structure of the filter element assembly refers to the above embodiments, and the water purification system adopts all the technical schemes of all the above embodiments, so that the water purification system at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated.
As shown in fig. 4, the water purification system further includes a reverse osmosis filter element 20 and a booster pump 30, wherein a raw water inlet end of the reverse osmosis filter element 20 is in butt joint with a water outlet of the first flow passage, a pure water outlet end of the reverse osmosis filter element 20 is in butt joint with a water inlet of the second flow passage, or a raw water inlet end of the reverse osmosis filter element 20 is in butt joint with a water outlet of the second flow passage, and a pure water outlet end of the reverse osmosis filter element 20 is in butt joint with a water inlet of the first flow passage; the booster pump 30 is arranged between the filter element assembly 10 and the raw water inlet end of the reverse osmosis filter element 20. When the first water passing port of the first flow channel is a water inlet, the second water passing port is a water outlet, or when the second water passing port of the first flow channel is a water inlet, the first water passing port is a water outlet. Similarly, when the third water passing port of the second flow channel is a water inlet, the fourth water passing port is a water outlet, or when the fourth water passing port of the second flow channel is a water inlet, the third water passing port is a water outlet. When first filter core was as leading filter core, the second filter core was as rearmounted filter core, or when first filter core was as rearmounted filter core, the second filter core was as leading filter core, through compounding leading filter core and rearmounted filter core, has reduced 10 progression of filter element group spare among the water purification system to simplify water purification system's structure, improved the convenience of assembly. The booster pump 30 is used to increase the water pressure in the water purification system to improve the filtering effect of the reverse osmosis filter element 20. Further, at least two reverse osmosis cartridges 20 may be included in the water purification system in parallel to further increase the throughput of the water purification system. The water purification system also includes a waste valve 40 to control the flow of the water purification system.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (6)
1. A filter element assembly, comprising:
the shell comprises a first shell and a second shell, the first shell is provided with a first water passing port, a second water passing port, a third water passing port and a fourth water passing port, a first flow channel and a second flow channel which are mutually independent are arranged inside the shell, the first flow channel is communicated with the first water passing port and the second water passing port, the second flow channel is communicated with the third water passing port and the fourth water passing port, and the inner surface of the first shell is provided with an inner sleeve;
the first filter element is arranged in the first flow channel, a first water passing flow channel of the first flow channel is formed between the first water passing opening and the first filter element, and a second water passing flow channel of the first flow channel is formed between the first filter element and the second water passing opening;
the second filter element is arranged in the second flow channel, a third water passing flow channel of the second flow channel is formed between the third water passing port and the second filter element, and a fourth water passing flow channel of the second flow channel is formed between the second filter element and the fourth water passing port;
the inner pipe is arranged inside the shell, the first shell is connected with the second shell, a first-stage seal is formed at the joint, and the upper end of the inner pipe is connected with the inner sleeve and a second-stage seal is formed at the joint;
the inner surface of the first shell is also provided with a middle sleeve and an outer sleeve from inside to outside, and the middle sleeve is positioned on the outer side of the inner sleeve;
the filter element assembly further comprises:
the middle pipe is arranged in the shell and sleeved outside the inner pipe;
the outer pipe is arranged in the shell and sleeved outside the middle pipe, an outer connecting pipe is arranged at the upper end of the outer pipe, and the outer connecting pipe is connected with the outer sleeve and forms third-stage sealing at the joint.
2. The filter element assembly according to claim 1, wherein the upper end of the outer tube is provided with an inner connection tube which is connected with the middle sleeve to form a fourth stage seal at the connection.
3. The filter element assembly according to claim 1, wherein the outer sleeve is axially spaced from the first filter element by a distance greater than the axial distance of the middle sleeve from the first filter element so that the outer sleeve is connected to the outer connector tube.
4. The filter element assembly according to claim 2, wherein the middle sleeve is axially spaced from the first filter element by a greater distance than the inner sleeve is axially spaced from the first filter element so that the middle sleeve is connected to the inner connection tube.
5. The filter element assembly according to claim 1, wherein said inner sleeve has a shorter axial length relative to either of said middle sleeve and said outer sleeve for attachment of said inner tube to said inner sleeve.
6. A water purification system, comprising a filter element assembly according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110623009.8A CN113368570B (en) | 2017-03-13 | 2017-03-13 | Filter element assembly and water purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710149536.3A CN107899279B (en) | 2017-03-13 | 2017-03-13 | Filter element assembly and water purification system |
| CN202110623009.8A CN113368570B (en) | 2017-03-13 | 2017-03-13 | Filter element assembly and water purification system |
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| CN201710149536.3A Division CN107899279B (en) | 2017-03-13 | 2017-03-13 | Filter element assembly and water purification system |
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| CN201710149536.3A Active CN107899279B (en) | 2017-03-13 | 2017-03-13 | Filter element assembly and water purification system |
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| CN113476924B (en) * | 2017-04-06 | 2023-04-07 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water purification equipment |
| CN107899280B (en) * | 2017-04-06 | 2021-06-25 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water purification equipment |
| CN110404328B (en) * | 2018-04-27 | 2024-02-20 | 芜湖美的厨卫电器制造有限公司 | Composite filter element and water purifying equipment |
| CN108295541B (en) * | 2018-04-27 | 2023-10-24 | 佛山市顺德区美的饮水机制造有限公司 | Filtering component, composite filter element and water treatment equipment with same |
| CN108339308A (en) * | 2018-04-27 | 2018-07-31 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
| CN108339306A (en) * | 2018-04-27 | 2018-07-31 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
| CN110407343B (en) * | 2018-04-27 | 2023-11-28 | 芜湖美的厨卫电器制造有限公司 | Water purification equipment and water purification system |
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| CN113368570A (en) | 2021-09-10 |
| CN107899279A (en) | 2018-04-13 |
| CN107899279B (en) | 2021-06-25 |
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