CN113856470A - Ultrafiltration composite filter element and water purification equipment - Google Patents
Ultrafiltration composite filter element and water purification equipment Download PDFInfo
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- CN113856470A CN113856470A CN202111274884.6A CN202111274884A CN113856470A CN 113856470 A CN113856470 A CN 113856470A CN 202111274884 A CN202111274884 A CN 202111274884A CN 113856470 A CN113856470 A CN 113856470A
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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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
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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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
- B01D61/146—Ultrafiltration comprising multiple ultrafiltration steps
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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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/20—Accessories; Auxiliary operations
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- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/54—Modularity of membrane module elements
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Abstract
The invention relates to the technical field of composite filter elements, in particular to an ultrafiltration composite filter element and water purification equipment. According to the ultrafiltration composite filter element provided by the invention, the inner shell is arranged to divide the inner space of the outer shell into a first filter element cavity and a second filter element cavity, the first filter element is arranged in the first filter element cavity, and the second filter element is arranged in the second filter element cavity, so that the parallel composite arrangement of the two filter elements is realized, and the overall volume of the ultrafiltration composite filter element is effectively reduced; meanwhile, the water inlets are respectively formed in the first filter element and the second filter element, the first filter element and the second filter element share or are respectively provided with a purified water outlet, the ultrafiltration composite filter element is switched among a water production state, a first filter element backflushing second filter element state and a second filter element backflushing first filter element state according to the switching-on state of the water inlets and the water outlet, and the ultrafiltration composite filter element is switched among the three states only by changing the switching-on state of the water inlets and the water outlet.
Description
Technical Field
The invention relates to the technical field of composite filter elements, in particular to an ultrafiltration composite filter element and water purification equipment.
Background
Along with the improvement of the life quality of people, the water purifier is gradually popularized in use, the ultrafiltration membrane can be used as a pretreatment filter element and a post-treatment filter element in a water purification system, the service life of the ultrafiltration membrane of the filter element is long, the ultrafiltration membrane can be cleaned without replacement for three years, the application prospect is wide, and therefore research on the ultrafiltration membrane cleaning technology is necessary. In the prior art, the ultrafiltration membrane is cleaned in a manual disassembly and cleaning mode and an automatic cleaning mode, wherein the manual disassembly and cleaning method is complicated in operation and brings inconvenience to users; the existing ultrafiltration membrane automatic cleaning technology has a plurality of defects, wherein the situation that the raw water is washed and blocked in places with poor water quality can occur; the method of backwashing the filter element by using the purified water in the water storage tank and the method of matching the parallel independent ultrafiltration and a plurality of electric ball valves have the problems of more parts, large volume and high cost, and bring inconvenience to the cleaning of the ultrafiltration filter element. Therefore, it is urgently needed to develop an ultrafiltration filter element with high integration, small volume and better cleaning effect so as to remove pollutants intercepted on the surface of the filter element, prolong the service life of the filter element, ensure the service performance of the water purifier and improve the user experience.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of large volume and inconvenient cleaning of the ultrafiltration filter element in the prior art, thereby providing the ultrafiltration composite filter element with small volume and convenient cleaning.
The invention also aims to solve the technical problem of overcoming the defects of large volume and inconvenient cleaning of the water purifying equipment in the prior art, thereby providing the water purifying equipment with small volume and convenient cleaning.
In order to solve the technical problems, the invention provides an ultrafiltration composite filter element, which comprises:
a housing;
an inner housing nestingly disposed within the outer housing, the inner housing adapted to divide the outer housing interior space into a first cartridge chamber and a second cartridge chamber;
a first filter element disposed within the first filter element chamber;
a second filter element disposed within the second filter element chamber;
the first filter element and the second filter element are respectively and independently provided with a water inlet suitable for raw water to enter, and the first filter element and the second filter element are shared or respectively provided with a purified water outlet suitable for purified water to be discharged; the first filter element and the second filter element are arranged in parallel.
Optionally, the first filter element is provided with a first ultrafiltration membrane, and is provided with a first water inlet and a first purified water outlet, the first water inlet is communicated with the inner side or the outer side of the first ultrafiltration membrane, and the first purified water outlet is communicated with the outer side or the inner side of the first ultrafiltration membrane;
the second filter element is provided with a second ultrafiltration membrane and a second water inlet and a second purified water outlet, the second water inlet is communicated with the inner side or the outer side of the second ultrafiltration membrane, and the second purified water outlet is communicated with the outer side or the inner side of the second ultrafiltration membrane.
Optionally, when the ultrafiltration composite filter element is in a water production state, the first water inlet and the second water inlet are water inlets, the first purified water outlet and the second purified water outlet are water outlets, and the first water inlet is communicated with the first filter element chamber and is communicated with the first purified water outlet after passing through the first ultrafiltration membrane; the second water inlet is communicated with the second filter element cavity and communicated with the second purified water outlet after passing through the second ultrafiltration membrane.
Optionally, when the ultrafiltration composite filter element is in a state of backflushing the first filter element with the second filter element, the first water inlet and the second purified water outlet are water inlets, the first purified water outlet and the second water inlet are water outlets, the first water inlet is communicated with the first filter element cavity, is communicated with the first purified water outlet and the second purified water outlet sequentially through the first ultrafiltration membrane, and is communicated with the second water inlet through the second ultrafiltration membrane.
Optionally, when the ultrafiltration composite filter element is in a state that the second filter element backflushes the first filter element, the first purified water outlet and the second water inlet are water inlets, the first water inlet and the second purified water outlet are water outlets, the second water inlet is communicated with the second filter element cavity, and is communicated with the second purified water outlet and the first purified water outlet sequentially after passing through the second ultrafiltration membrane, and then is communicated with the first water inlet after passing through the first ultrafiltration membrane.
Optionally, the ultrafiltration composite filter element further comprises: and the filter element seat body is suitable for being in sealing fit connection with the open end of the ultrafiltration composite filter element and is provided with a channel which is equal to the total number of the water inlet and the purified water outlet.
Optionally, the first purified water outlet and the second purified water outlet are two independent outlets respectively communicated with an external pipeline.
Optionally, the filter cartridge body includes: the first loop is communicated with the first water inlet and provided with a first loop opening which is suitable for communicating the first water inlet with an external pipeline;
the second loop is communicated with the first purified water outlet and is provided with a second loop opening which is suitable for communicating the first purified water outlet with an external pipeline;
the third loop is communicated with the second water inlet and provided with a third loop opening which is suitable for communicating the second water inlet with an external pipeline;
the central circular channel is communicated with the second purified water outlet and provided with a central circular channel opening which is suitable for communicating the second purified water outlet with an external pipeline and is communicated with the second circular channel opening;
and the main water purifying port is communicated with the central circular channel opening and the second circular channel opening and is suitable for communicating the first purified water outlet and the second purified water outlet with an external pipeline.
Optionally, the first purified water outlet and the second purified water outlet are communicated with the inside of the ultrafiltration composite filter element and converge to a convergence outlet, and the convergence outlet is communicated with an external pipeline.
Optionally, the filter cartridge body includes: the first loop is communicated with the first water inlet and provided with a first loop opening which is suitable for communicating the first water inlet with an external pipeline;
the third loop is communicated with the second water inlet and provided with a third loop opening which is suitable for communicating the second water inlet with an external pipeline;
the central circular channel is communicated with the confluence outlet and is provided with a central circular channel opening which is suitable for communicating the confluence outlet with an external pipeline;
and the main water purifying port is communicated with the central circular channel through the central circular channel opening hole and is suitable for communicating the confluence outlet with an external pipeline.
Optionally, the arrangement mode of the first filter element and the second filter element is up-down arrangement or inner-outer layer arrangement.
The invention provides a water purification unit, comprising: the ultrafiltration composite filter element is as described above.
The technical scheme of the invention has the following advantages:
1. according to the ultrafiltration composite filter element provided by the invention, the inner shell is arranged to divide the inner space of the outer shell into a first filter element cavity and a second filter element cavity, the first filter element is arranged in the first filter element cavity, and the second filter element is arranged in the second filter element cavity, so that the parallel composite arrangement of the two filter elements is realized, and the overall volume of the ultrafiltration composite filter element is effectively reduced; simultaneously, through first filter core with the second filter core is provided with the water inlet that is suitable for the raw water to get into respectively, first filter core with the sharing of second filter core or be provided with respectively and be suitable for water purification exhaust water purification delivery port, realize ultrafiltration composite filter core switches over between three kinds of states of water preparation state, first filter core recoil second filter core state and second filter core recoil first filter core state according to the on-state of water inlet and water purification delivery port, just ultrafiltration composite filter core is in switching over between three kinds of states only needs to change the on-state of water inlet and delivery port and can realize, simple structure, convenient operation, and the cleaning performance is good, is favorable to promoting user satisfaction.
2. According to the ultrafiltration composite filter element provided by the invention, the filter element base body is provided with channels equal to the total number of the water inlets and the purified water outlets, each loop corresponds to one water inlet or one water outlet, and each loop is provided with an opening communicated with an external pipeline, so that the water inlets and the water outlets are communicated with the external pipelines respectively, the conduction states of the water inlets and the water outlets are conveniently controlled, and the ultrafiltration composite filter element is switched among a water preparation state, a first filter element backflushing second filter element state and a second filter element backflushing first filter element state.
3. According to the ultrafiltration composite filter element provided by the invention, the filter element base body comprises a main water purifying port which is communicated with the water outlet, so that the ultrafiltration composite filter element is suitable for guiding purified water discharged from the first purified water outlet and the second purified water outlet into an external pipeline when the ultrafiltration composite filter element is in a water making state; when the ultrafiltration composite filter element is in a state that the first filter element backflushs the second filter element or a state that the second filter element backflushes the first filter element, the main water purifying port is closed, and the purified water prepared by the filter element can not be discharged to an external pipeline, so that the purified water flows through a flow path communicated with the first purified water outlet and the second purified water outlet, and the backflushing of one filter element to another filter element is realized.
4. According to the ultrafiltration composite filter element provided by the invention, the first filter element and the second filter element are arranged in an up-and-down arrangement mode or an inner-and-outer arrangement mode, so that the ultrafiltration composite filter element is compact in structure and beneficial to reducing the whole volume, and the two modes can be freely selected according to actual conditions, so that the selectivity is increased, and the popularization and the use are facilitated.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an ultrafiltration composite filter element with filter elements arranged up and down according to the present invention;
FIG. 2 is a schematic view of the water production state of the ultrafiltration composite filter element with the filter elements arranged up and down;
FIG. 3 is a schematic view of a first filter element backflushing a second filter element of the ultrafiltration composite filter element with filter elements arranged up and down according to the present invention;
FIG. 4 is a schematic view of a second filter element backflushing a first filter element of an ultrafiltration composite filter element with filter elements arranged up and down according to the present invention;
FIG. 5 is a schematic view of the combination of the ultrafiltration composite filter element with the filter element arranged up and down and the filter element seat body according to the present invention;
FIG. 6 is a schematic structural view of an ultrafiltration composite filter element with filter elements arranged on the inner and outer layers according to the present invention;
fig. 7 is a top view of the cartridge body of the present invention;
fig. 8 is a sectional view taken along the line a-a of fig. 7.
Description of reference numerals:
a11, a first ultrafiltration membrane; a12, a second ultrafiltration membrane; a2, a shell; a3, inner shell; a41, a first water inlet; a42, a second water inlet; a51, a first purified water outlet; a52 and a second purified water outlet; a6, filter element seat body; a61, a first loop; a611, opening a first loop; a62, second loop; a621, opening a second loop; a63, third loop; a631, a third ring opening; a64, central circular path; a641, opening a central circular channel; a65, total clean water gap.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
Referring to fig. 1 to 8, the ultrafiltration composite filter element provided in this embodiment includes:
shell a 2;
an inner shell a3 nested within outer shell a2, the inner shell a3 adapted to separate the interior space of outer shell a2 into a first cartridge chamber and a second cartridge chamber;
a first filter element disposed within the first filter element chamber;
a second filter element disposed within the second filter element chamber;
the first filter element and the second filter element are respectively and independently provided with a water inlet suitable for raw water to enter, and the first filter element and the second filter element are shared or respectively provided with a purified water outlet suitable for purified water to be discharged; the first filter element and the second filter element are arranged in parallel.
Optionally, the open ends of the first filter element chamber and the second filter element chamber are respectively communicated with an external pipeline.
Optionally, the ultrafiltration composite filter element is suitable for switching among a water production state, a first filter element backflushing second filter element state and a second filter element backflushing first filter element state according to the conduction state of the water inlet and the purified water outlet.
It should be noted that one end of the ultrafiltration composite filter element is open and is communicated with an external pipeline, and the external pipeline refers to a pipeline for supplying or draining water to the ultrafiltration composite filter element; the water production state refers to a working state that the first filter element and the second filter element are both in a state that raw water is introduced from a water inlet, and the raw water is filtered by the ultrafiltration membrane and then is discharged from a water outlet to obtain purified water; the state that the first filter element backflushs the second filter element refers to the working state that only the first filter element prepares purified water, and the prepared purified water is used for flushing an ultrafiltration membrane of the second filter element; the state that the second filter element backflushs the first filter element refers to the working state that only the second filter element prepares purified water, and the prepared purified water is used for flushing an ultrafiltration membrane of the first filter element; the outer side of the ultrafiltration membrane refers to a side of the ultrafiltration membrane close to the housing, and the inner side refers to a side of the ultrafiltration membrane opposite to the outer side.
In the ultrafiltration composite filter element provided by the embodiment, the inner shell a3 is arranged to divide the inner space of the outer shell a2 into a first filter element chamber and a second filter element chamber, a first filter element is arranged in the first filter element chamber, and a second filter element is arranged in the second filter element chamber, so that the parallel composite arrangement of the two filter elements is realized, and the overall volume of the ultrafiltration composite filter element is effectively reduced; simultaneously, through first filter core with the second filter core is provided with the water inlet that is suitable for the raw water to get into respectively, first filter core with the sharing of second filter core or be provided with respectively and be suitable for water purification exhaust water purification delivery port, realize ultrafiltration composite filter core switches over between three kinds of states of water preparation state, first filter core recoil second filter core state and second filter core recoil first filter core state according to the on-state of water inlet and delivery port, just ultrafiltration composite filter core is in switching over between three kinds of states only needs to change the on-state of water inlet and delivery port and can realize, simple structure, convenient operation, and the cleaning performance is good, is favorable to promoting user satisfaction.
Specifically, the first filter element is provided with a first ultrafiltration membrane a11, and is provided with a first water inlet a41 and a first purified water outlet a51, the first water inlet a41 is communicated with the inner side or the outer side of the first ultrafiltration membrane a11, and the first purified water outlet a51 is communicated with the outer side or the inner side of the first ultrafiltration membrane a 11;
the second filter element is provided with a second ultrafiltration membrane a12, a second water inlet a42 and a second purified water outlet a52, the second water inlet a42 is communicated with the inner side or the outer side of the second ultrafiltration membrane a12, and the second purified water outlet a52 is communicated with the outer side or the inner side of the second ultrafiltration membrane a 12.
Optionally, the first purified water outlet a51 and the second purified water outlet a52 are independently arranged on the housing a2, or the first purified water outlet a51 and the second purified water outlet a52 converge to form a purified water outlet inside the ultrafiltration composite filter element, and the housing a2 is provided with a converged purified water outlet.
Optionally, a first protection layer is disposed on the outer side of the first ultrafiltration membrane a11, and a plurality of through holes are disposed on the first protection layer and adapted to communicate the first ultrafiltration membrane a11 with the first filter element chamber.
Optionally, a second protective layer is arranged on the outer side of the second ultrafiltration membrane a12, a spacing layer is formed between the second protective layer and the inner shell a3, and the first filter element is communicated with the first purified water outlet a51 through the spacing layer.
Optionally, the water production mode of the first ultrafiltration membrane a11 and the second ultrafiltration membrane a12 is an external pressure type.
Optionally, one position arrangement embodiment of the first water inlet a41, the first purified water outlet a51, the second water inlet a42 and the second purified water outlet a52 is sequentially arranged from outside to inside.
Optionally, the ultrafiltration composite filter element comprises at least two filter elements.
Specifically, when the ultrafiltration composite filter element is in a water production state, the first water inlet a41 and the second water inlet a42 are water inlets, the first purified water outlet a51 and the second purified water outlet a52 are water outlets, and the first water inlet a41 is communicated with the first filter element chamber and is communicated with the first purified water outlet a51 after passing through the first ultrafiltration membrane a 11; the second water inlet a42 is communicated with the second filter element chamber, and is communicated with the second purified water outlet a52 after passing through the second ultrafiltration membrane a 12.
When the ultrafiltration composite filter element is in the water making state, raw water enters the first filter element chamber through the first water inlet a41, purified water is obtained after filtration of the first ultrafiltration membrane a11, the obtained purified water flows through a spacing layer between the second ultrafiltration membrane and the inner shell a3 to reach the first purified water outlet a51, and the purified water is discharged to an external pipeline through the first purified water outlet a 51; meanwhile, raw water in the parallel flow path enters the second filter element chamber through the second water inlet a42, purified water is prepared after being filtered by the second ultrafiltration membrane a12, and the prepared purified water is discharged to an external pipeline through the second purified water outlet a 52.
Specifically, when the ultrafiltration composite filter element is in a state of backflushing a first filter element with a second filter element, the first water inlet a41 and the second purified water outlet a52 are water inlets, the first purified water outlet a51 and the second water inlet a42 are water outlets, and the first water inlet a41 is communicated with the first filter element chamber, sequentially communicated with the first purified water outlet a51 and the second purified water outlet a52 through the first ultrafiltration membrane a11, and then communicated with the second water inlet a42 through the second ultrafiltration membrane a 12.
When the ultrafiltration composite filter element is in a state that the first filter element backflushs the second filter element, only the first filter element is used for preparing purified water, raw water enters the first filter element chamber from the first water inlet a41, purified water is prepared after passing through the first ultrafiltration membrane a11, the prepared purified water flows out from the first purified water outlet a51 and then enters the second filter element from the second purified water outlet a52, the purified water flows through the second ultrafiltration membrane a12 and is used for cleaning the second ultrafiltration membrane a12, and waste water after cleaning is discharged from the second water inlet a 42.
Specifically, when the ultrafiltration composite filter element is in a state of backflushing the second filter element with the first filter element, the first purified water outlet a51 and the second water inlet a42 are water inlets, the first water inlet a41 and the second purified water outlet a52 are water outlets, and the second water inlet a42 is communicated with the second filter element chamber, is sequentially communicated with the second purified water outlet a52 and the first purified water outlet a51 after passing through the second ultrafiltration membrane a12, and is communicated with the first water inlet a41 after passing through the first ultrafiltration membrane a 11.
When the ultrafiltration composite filter element is in a state that the second filter element backflushs the first filter element, only the second filter element is used for preparing purified water, raw water enters the second filter element chamber from the second water inlet a42, purified water is obtained after the second ultrafiltration membrane a12 is prepared, the prepared purified water flows out from the second purified water outlet a52 and then enters the first filter element chamber from the first purified water outlet a51, the purified water flows through the first ultrafiltration membrane a11 and is used for cleaning the first ultrafiltration membrane a11, and waste water after cleaning is discharged from the first water inlet a 41.
Specifically, the ultrafiltration composite filter element further comprises: and the filter element seat body a6 is suitable for being in sealing fit connection with the open end of the ultrafiltration composite filter element and is provided with a channel which is equal to the total number of the water inlet and the purified water outlet.
Specifically, the first purified water outlet a51 and the second purified water outlet a52 are two independent outlets, which are respectively communicated with an external pipeline.
Specifically, the filter cartridge seat a6 includes: a first loop a61 communicating with the first water inlet a41, the first loop a61 being provided with a first loop opening a611 adapted to communicate the first water inlet a41 with an external pipe;
a second loop a62 communicating with the first purified water outlet a51, the second loop a62 being provided with a second loop opening a621 adapted to communicate the first purified water outlet a51 with an external pipeline;
a third loop a63 communicating with the second water inlet a42, the third loop a63 being provided with a third loop opening a631 adapted to communicate the second water inlet a42 with an external pipe;
the central circular channel a64 is communicated with the second purified water outlet a52, the central circular channel a64 is provided with a central circular channel opening a641 which is suitable for communicating the second purified water outlet a52 with an external pipeline, and the central circular channel opening a641 is communicated with the second circular channel opening a 621;
and a main purified water outlet a65, which is communicated with the central circular opening a641 and the second circular opening a621 and is suitable for communicating the first purified water outlet a51 and the second purified water outlet a52 with an external pipeline.
It should be noted that, when the first purified water outlet a51 and the second purified water outlet a52 are two independent outlets, the total number of the water inlets and the purified water outlets is 4, and at this time, the filter element seat body a6 is provided with 4 channels, namely, the first loop a61, the second loop a62, the third loop a63, and the central loop a 64.
It should be noted that the central circular opening a641 is communicated with the second circular opening a621, so that the first purified water outlet a51 is communicated with the second purified water outlet a52, when the ultrafiltration composite filter element is in the state that the first filter element backflushes to the second filter element or the second filter element backflushes to the first filter element, the total purified water outlet a65 is closed, and at this time, purified water produced by the filter elements cannot be discharged to an external pipeline, so that purified water produced by one filter element can flow into another filter element through a passage between the first purified water outlet a51 and the second purified water outlet a52, and is used for washing the ultrafiltration membrane.
Optionally, the ultrafiltration composite filter element comprises at least two filter elements, and when the number of the filter elements is 3, the filter element seat body a6 comprises 6 channels including 5 loops and a central loop.
Specifically, the first purified water outlet a51 and the second purified water outlet a52 are communicated and converged to a confluence outlet inside the ultrafiltration composite filter element, and the confluence outlet is communicated with an external pipeline.
Specifically, the filter cartridge seat a6 includes: a first loop a61 communicating with the first water inlet a41, the first loop a61 being provided with a first loop opening a611 adapted to communicate the first water inlet a41 with an external pipe;
a third loop a63 communicating with the second water inlet a42, the third loop a63 being provided with a third loop opening a631 adapted to communicate the second water inlet a42 with an external pipe;
a central circular passage a64 communicating with the confluence outlet, the central circular passage a64 being provided with a central circular passage opening a641 adapted to communicate the confluence outlet with an external pipe;
and the total water purifying port a65 is communicated with the central circular channel a64 through the central circular channel opening a641 and is suitable for communicating the confluence outlet with an external pipeline.
It should be noted that, when the first purified water outlet a51 and the second purified water outlet a52 are communicated and converged to a converging outlet inside the ultrafiltration composite filter element, the total number of the water inlets and the purified water outlets is 3, and at this time, the filter element seat body a6 is provided with 3 channels including the first loop a61, the third loop a63 and the central loop a 64.
Optionally, when the number of the filter cartridges is 3, the filter cartridge body a6 includes 4 passages including 3 circular passages and a central circular passage.
Optionally, the circular path and the central circular path of the filter element seat body a6 are in sealing fit with the water inlet and the water outlet through sealing rings.
It should be noted that, when the ultrafiltration composite filter element is in the first filter element backflushing second filter element state or the second filter element backflushing first filter element state, the total purified water port a65 is closed, and at this time, purified water produced by the filter element cannot be discharged to an external pipeline, and the first purified water outlet a51 and the second purified water outlet a52 are communicated and converged to a confluence outlet inside the ultrafiltration composite filter element, that is, the first purified water outlet a51 and the second purified water outlet a52 are in a conduction state, so that purified water produced by one filter element can flow into another filter element through a passage between the first purified water outlet a51 and the second purified water outlet a52 to flush the ultrafiltration membrane.
The ultrafiltration composite filter core that this embodiment provided has the passageway that equals with water inlet and water purification delivery port total number through setting up filter core pedestal a6, and every ring road corresponds with a water inlet or a delivery port respectively, and every the ring road is provided with the trompil of outside pipeline intercommunication respectively, realizes water inlet and delivery port communicate with outside pipeline respectively, and is convenient for right the water inlet reaches the control of delivery port on-state, thereby be convenient for realize ultrafiltration composite filter core is in the switching between three kinds of states of water making state, first filter core recoil second filter core state and second filter core recoil first filter core state.
In the ultrafiltration composite filter element provided by the embodiment, the filter element seat body a6 is arranged to include a main purified water port a65, and the main purified water port a65 is communicated with a water outlet, so that when the ultrafiltration composite filter element is in a water production state, purified water discharged from the first purified water outlet a51 and the second purified water outlet a52 is led out to an external pipeline; when the ultrafiltration composite filter element is in a state that the first filter element backflushs the second filter element or a state that the second filter element backflushes the first filter element, the total water purifying port a65 is closed, and purified water prepared by the filter element cannot be discharged to an external pipeline, so that the purified water flows through a flow path communicated with the first purified water outlet a51 and the second purified water outlet a52, and one filter element backflushs the other filter element.
Specifically, the arrangement mode of the first filter element and the second filter element is up-down arrangement or inner-outer layer arrangement.
The ultrafiltration composite filter element provided by the embodiment is characterized in that the first filter element and the second filter element are arranged up and down or arranged in an inner layer and an outer layer, so that the ultrafiltration composite filter element is compact in structure, beneficial to reducing the whole volume, free selection of the two modes can be achieved according to actual conditions, selectivity is increased, and popularization and use are facilitated.
Example two
This embodiment provides a water purification unit, includes: the ultrafiltration composite filter element is characterized in that the ultrafiltration composite filter element is composed of a filter core body and a filter core cover.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. An ultrafiltration composite filter element, comprising:
a housing (a 2);
an inner shell (a3) nestingly disposed within the outer shell (a2), the inner shell (a3) adapted to partition the outer shell (a2) interior space into a first cartridge chamber and a second cartridge chamber;
a first filter element disposed within the first filter element chamber;
a second filter element disposed within the second filter element chamber;
the first filter element and the second filter element are respectively and independently provided with a water inlet suitable for raw water to enter, and the first filter element and the second filter element are shared or respectively provided with a purified water outlet suitable for purified water to be discharged; the first filter element and the second filter element are arranged in parallel.
2. The ultrafiltration composite cartridge according to claim 1, wherein the first cartridge is provided with a first ultrafiltration membrane (a11) and is provided with a first water inlet (a41) and a first purified water outlet (a51), the first water inlet (a41) is communicated with the inside or outside of the first ultrafiltration membrane (a11), and the first purified water outlet (a51) is communicated with the outside or inside of the first ultrafiltration membrane (a 11);
the second filter element is provided with a second ultrafiltration membrane (a12), a second water inlet (a42) and a second purified water outlet (a52), the second water inlet (a42) is communicated with the inner side or the outer side of the second ultrafiltration membrane (a12), and the second purified water outlet (a52) is communicated with the outer side or the inner side of the second ultrafiltration membrane (a 12).
3. The ultrafiltration composite filter element according to claim 2, wherein when the ultrafiltration composite filter element is in a water production state, the first water inlet (a41) and the second water inlet (a42) are water inlets, the first purified water outlet (a51) and the second purified water outlet (a52) are water outlets, and the first water inlet (a41) is communicated with the first filter element chamber and is communicated with the first purified water outlet (a51) after passing through the first ultrafiltration membrane (a 11); the second water inlet (a42) is communicated with the second filter element chamber, and is communicated with the second purified water outlet (a52) after passing through the second ultrafiltration membrane (a 12).
4. The ultrafiltration composite cartridge of claim 2, wherein when the ultrafiltration composite cartridge is in a first cartridge backflushing second cartridge state, the first water inlet (a41) and the second purified water outlet (a52) are water inlets, the first purified water outlet (a51) and the second water inlet (a42) are water outlets, and the first water inlet (a41) is in communication with the first cartridge chamber, and is sequentially in communication with the first purified water outlet (a51), the second purified water outlet (a52) after passing through the first ultrafiltration membrane (a11), and is sequentially in communication with the second water inlet (a42) after passing through the second ultrafiltration membrane (a 12).
5. The ultrafiltration composite cartridge of claim 2, wherein when the ultrafiltration composite cartridge is in a second cartridge backflushing first cartridge state, the first purified water outlet (a51) and the second water inlet (a42) are water inlets, the first water inlet (a41) and the second purified water outlet (a52) are water outlets, and the second water inlet (a42) is in communication with the second cartridge chamber, and is sequentially in communication with the second purified water outlet (a52), the first purified water outlet (a51) after passing through the second ultrafiltration membrane (a12), and is sequentially in communication with the first water inlet (a41) after passing through the first ultrafiltration membrane (a 11).
6. The ultrafiltration composite filter cartridge of claim 2, further comprising: and the filter element seat body (a6) is suitable for being in sealing fit connection with the open end of the ultrafiltration composite filter element and is provided with a channel which is equal to the total number of the water inlet and the purified water outlet.
7. The ultrafiltration composite filter element according to claim 6, wherein the first purified water outlet (a51) and the second purified water outlet (a52) are two independent outlets respectively communicated with external pipelines.
8. The ultrafiltration composite cartridge of claim 7, wherein the cartridge body (a6) comprises:
a first loop (a61) communicating with the first water inlet (a41), the first loop (a61) being provided with a first loop aperture (a611) adapted to communicate the first water inlet (a41) with an external pipe;
a second loop (a62) communicating with the first purified water outlet (a51), the second loop (a62) being provided with a second loop opening (a621) adapted to communicate the first purified water outlet (a51) with an external pipe;
a third loop (a63) communicating with the second water inlet (a42), the third loop (a63) being provided with a third loop opening (a631) adapted to communicate the second water inlet (a42) with an external pipe;
a central circular passage (a64) communicating with the second purified water outlet (a52), the central circular passage (a64) being provided with a central circular passage opening (a641) adapted to communicate the second purified water outlet (a52) with an external pipe, and the central circular passage opening (a641) communicating with the second circular passage opening (a 621);
a main purified water outlet (a65) in communication with the central circular opening (a641) and the second circular opening (a621) and adapted to communicate the first purified water outlet (a51) and the second purified water outlet (a52) with an external pipeline.
9. The ultrafiltration composite filter element according to claim 6, wherein the first purified water outlet (a51) and the second purified water outlet (a52) are communicated and converged to a confluence outlet inside the ultrafiltration composite filter element, and the confluence outlet is communicated with an external pipeline.
10. The ultrafiltration composite cartridge of claim 9, wherein the cartridge body (a6) comprises:
a first loop (a61) communicating with the first water inlet (a41), the first loop (a61) being provided with a first loop aperture (a611) adapted to communicate the first water inlet (a41) with an external pipe;
a third loop (a63) communicating with the second water inlet (a42), the third loop (a63) being provided with a third loop opening (a631) adapted to communicate the second water inlet (a42) with an external pipe;
a central circular passage (a64) communicating with the confluence outlet, the central circular passage (a64) being provided with a central circular passage opening (a641) adapted to communicate the confluence outlet with an external pipe;
a total clean water port (a65) communicating with the central circular channel (a64) through the central circular channel opening (a641), adapted to communicate the confluence outlet with an external pipe.
11. The ultrafiltration composite filter element of any one of claims 1 to 10, wherein the first filter element and the second filter element are arranged in an up-down manner or in an inner-outer manner.
12. A water purification apparatus, comprising: the ultrafiltration composite cartridge of any one of claims 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111274884.6A CN113856470A (en) | 2021-10-29 | 2021-10-29 | Ultrafiltration composite filter element and water purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111274884.6A CN113856470A (en) | 2021-10-29 | 2021-10-29 | Ultrafiltration composite filter element and water purification equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180676A (en) * | 2022-01-10 | 2022-03-15 | 珠海格力电器股份有限公司 | Water purifying equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180676A (en) * | 2022-01-10 | 2022-03-15 | 珠海格力电器股份有限公司 | Water purifying equipment |
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