CN217092938U - Compound filter element group spare and water purification system - Google Patents
Compound filter element group spare and water purification system Download PDFInfo
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- CN217092938U CN217092938U CN202220191048.5U CN202220191048U CN217092938U CN 217092938 U CN217092938 U CN 217092938U CN 202220191048 U CN202220191048 U CN 202220191048U CN 217092938 U CN217092938 U CN 217092938U
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Abstract
The utility model provides a compound filter element group spare and water purification system, compound filter element group spare includes: raw water inlet, produce the water export, the waste water export, first filter core and second filter core, first filter core includes first hollow fiber filtration membrane silk, the second filter core includes second hollow fiber filtration membrane silk, the second filter core is located the axial one end of first filter core, the hydroenergy that raw water import got into can filter through first filter core, and get into the inside of first hollow fiber filtration membrane silk and finally derive through producing the water export when filtering, the hydroenergy that does not get into the inside of first filter core can filter through the second filter core, and get into the inside of second hollow fiber filtration membrane silk and finally derive through producing the water export when filtering, the hydroenergy that does not get into the inside of second filter core can communicate and derive with the waste water export. Through the utility model discloses filter fineness is high, compares in traditional ultrafiltration filter core technique, reduces the scale deposit risk, can also improve the recycle ratio of waste water.
Description
Technical Field
The utility model belongs to the technical field of the water purification, concretely relates to compound filter element group spare and water purification system.
Background
With the increasing demand of the nation for good life, the demand of the nation for drinking water quality is higher and higher. The household drinking water is mainly supplied by municipal pipe network in a centralized way, and the water pollution is mainly caused by water supply pipe network and incomplete early municipal treatment.
The filter element used by the current household water purifier is mainly divided into an ultrafiltration filter element, a nanofiltration filter element and a reverse osmosis filter element according to the filtration precision. The nanofiltration filter core is more and more popular with consumers in the market due to the characteristics of low operation pressure, large pure water flux, low operation cost and the like. At present, the nanofiltration membrane used in the field of water treatment mostly adopts a pressure filtration mode, and the nanofiltration membrane has the following forms: the spiral-wound nanofiltration membrane, the hollow fiber nanofiltration membrane, the plate-frame nanofiltration membrane and the like are used in the actual use process, a plurality of nanofiltration membrane components are required to be connected in series and in parallel for improving the treatment capacity, the occupied area is large, and the method is not suitable for the use scene of the household water purifier.
Through the analysis, if a filter element assembly with high filtering precision and large water production flux can be developed, the requirement of purifying water quality of a user can be met, the problem of complex operation of replacing the filter element can be solved, and the filter element treatment efficiency is high compared with the filter element treatment efficiency on the market. Therefore, the method has certain advantages in both technology and application prospect.
Because traditional filter element group spare among the prior art can't satisfy simultaneously that filter fineness is high, the running cost is low, produce that water flux is big, install convenient technical problem such as convenient, consequently the utility model discloses study design a compound filter element group spare and water purification system.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming traditional filter element group spare among the prior art and can't satisfy simultaneously that the filter fineness is high, the running cost is low, produce the big, the convenient defect of installation of water flux to a compound filter element group spare and water purification system are provided.
The utility model provides a compound filter element group spare, it includes:
raw water import, product water export, wastewater outlet, first filter core and second filter core, first filter core includes first hollow fiber filtration membrane silk, the second filter core includes second hollow fiber filtration membrane silk, the second filter core is located the axial one end of first filter core, the water that raw water import got into can pass through first filter core filters to get into when filtering the inside and final pass through of first hollow fiber filtration membrane silk produce the water export and derive, do not get into the hydroenergy of the inside of first filter core can pass through the second filter core filters to get into when filtering the inside and final pass through of second hollow fiber filtration membrane silk produce the water export and derive, do not get into the hydroenergy of the inside of second filter core can with wastewater outlet intercommunication and derive.
In some embodiments, the filter cartridge further comprises a filter cartridge housing and a top end cap, wherein the raw water inlet, the produced water outlet and the wastewater outlet are all arranged at an axial first end of the filter cartridge housing, and the top end cap is connected with an axial second end of the filter cartridge housing.
In some embodiments, still include first section filter core membrane shell and second section filter core membrane shell, first section filter core membrane shell with second section filter core membrane shell all set up in the filter core shell, second section filter core membrane shell set up in the axial one end of first section filter core membrane shell, just the radial inboard setting of second section filter core membrane shell the second filter core, the radial inboard setting of first section filter core membrane shell the first filter core.
In some embodiments, the cartridge housing is a cylindrical configuration, the first hollow fiber filtration membrane filaments are in a U-shaped configuration with straight edges extending in an axial direction of the cartridge housing, and the second hollow fiber filtration membrane filaments are in a U-shaped configuration with straight edges extending in the axial direction of the cartridge housing; the first hollow fiber filtering membrane filaments are multiple and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell; the second hollow fiber filtering membrane filaments are multiple and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell.
In some embodiments, one side of the second section of the filter element membrane shell facing the filter element shell is provided with a first channel, the radial inner side of the filter element shell is formed into a first cavity, the first section of the filter element membrane shell and the second section of the filter element membrane shell are both positioned in the first cavity, the radial inner side of the first section of the filter element membrane shell is formed into a second cavity, the first filter element is positioned in the second cavity, the raw water inlet is communicated with one end of the first channel, the other end of the first channel is communicated with the first cavity, the first cavity is communicated with the second cavity through a first raw water outlet formed in the first section of the filter element membrane shell so as to guide water into the first filter element, and the first raw water outlet is a radial through hole penetrating through the inner wall and the outer wall of the first section of the filter element membrane shell along the radial direction.
In some embodiments, the second section of the filter element membrane shell forms a third cavity inside, the second filter element is positioned in the third cavity, the first section of the filter element membrane shell is axially provided with at least one first section of waste water outlet penetrating through the inner wall and the outer wall of the first section of the filter element membrane shell, and water in the second cavity can enter the third cavity through the first section of the waste water outlet.
In some embodiments, still include first section filter core end cover, the axial one end of first filter core is connected and is provided with first bonding portion, the periphery cover of first bonding portion is established first section filter core membrane shell, the periphery of first section filter core membrane shell with sealing connection between the first section filter core end cover, first bonding portion with first section filter core end cover forms on the axial direction the second passageway, through water after the first filter core filters gets into in the second passageway.
In some embodiments, a second filter element end cover is further arranged at one axial end of the second filter element membrane shell, a third channel is further arranged between the second filter element membrane shell and the second filter element end cover, water filtered by the second filter element enters the third channel, and the second channel is communicated with the third channel and then can discharge the filtered water through the water production outlet.
In some embodiments, a portion of the third cavity, which is located on the radial inner side of the second filter element, is provided with a communication pipe, one end of the communication pipe is communicated with the water production outlet, and the other end of the communication pipe is communicated with the second channel, so that water entering the first filter element can be discharged through the communication pipe via the water production outlet.
In some embodiments, the axial one end of second filter core is connected and is provided with the third portion of bonding, the outer periphery cover of third portion of bonding is established second section filter core membrane shell, the interior week of third portion of bonding is worn to establish communicating pipe, process the inside water of straining of second filter core can pass through behind the third portion of bonding get into in the third passageway.
In some embodiments, the water purifier further comprises a third filter element end cover, the filter element end cover is sleeved on the periphery of the second section of filter element membrane shell, a second section of wastewater outlet is formed in the second section of filter element membrane shell in a penetrating manner along the axial direction, a fourth channel is formed between the filter element end cover and the second section of filter element end cover, one end of the fourth channel is communicated with the wastewater outlet, and the other end of the fourth channel can be communicated with the third cavity, so that water which does not enter the second filter element can enter the fourth channel through the second section of wastewater outlet and then is discharged through the wastewater outlet; the third filter element end cover and the filter element membrane shell form the first channel at intervals in the axial direction.
In some embodiments, the second segment of the filter cartridge membrane shell is sealingly connected between the outer periphery thereof and the second segment of the filter cartridge end cap.
In some embodiments, the waste water outlet is located radially outward of the water production outlet; and/or the presence of a gas in the gas,
the first hollow fiber filtration membrane filaments are hollow fiber nanofiltration membrane filaments or hollow reverse osmosis membrane filaments.
The utility model also provides a water purification system, it includes preceding arbitrary compound filter element group spare.
The utility model provides a pair of compound filter element group spare and water purification system has following beneficial effect:
the utility model discloses a set up first filter core and second part, the second filter core includes second hollow fiber filter membrane silk, the second filter core is located the axial one end of first filter core, the water that raw water import got into can pass through the filtration of first filter core, and get into the inside of first hollow fiber filter membrane silk and finally derive through the water outlet when filtering, arrange these fiber filter membrane silks together radially, do not have the condition of beating the glue on the diaphragm, and the density of radial packing can also be designed according to specific application, thereby improves effective membrane area; compared with the traditional filter element, the hollow fiber nanofiltration or reverse osmosis technology 1) adopted in the technical scheme has high filtration precision, and compared with the traditional ultrafiltration filter element technology, the technical scheme has good separation effect on divalent and high-valence salts and small molecular organic matters, can improve the filtration precision and reduce scaling risk; 2) the area of the filter element membrane is effectively increased, the hollow fiber nanofiltration or reverse osmosis technology adopted by the technical scheme can effectively utilize space, increase the membrane area and improve the water quality purification effect; 3) the operation pressure is small, the operation cost is low, the hollow fiber nanofiltration technology adopted by the technical scheme is that under the action of pressure difference, salt and small molecular substances permeate the nanofiltration membrane, and the operation pressure is lower than that of a reverse osmosis filter element; 4) the formation of the first-stage and second-stage filtering structure can also improve the recycling rate of the wastewater.
Drawings
FIG. 1 is a cross-sectional view of the composite filter element assembly of the present invention;
FIG. 2 is an assembled block diagram of the first segment cartridge membrane shell and first cartridge of FIG. 1;
FIG. 3 is an assembled block diagram of a second segment cartridge membrane shell and a second cartridge of FIG. 1;
fig. 4 is an assembled block diagram of the cartridge housing and top end cap of fig. 1.
The reference numbers in the figures denote:
100. a raw water inlet; 200. a water production outlet; 300. a waste water outlet; 1. a first filter element; 2. a second filter element; 3. a filter element housing; 4. a first section of filter element membrane shell; 41. a first raw water outlet; 5. a second section of filter element membrane shell; 51. a first stage wastewater outlet; 52. a second section wastewater outlet; 6. a first channel; 7. a first cavity; 8. a second cavity; 9. a third cavity; 10. a second channel; 11. a third channel; 12. a communicating pipe; 13. a first bonding portion; 13a, a first section of filter element end cover; 13b, a second section of filter element end cover; 14. a top end cap; 15. a third filter element end cap; 16. a third bonding portion; 17. a fourth channel; 18. a first seal member; 19. and (5) sealing by using glue.
Detailed Description
As shown in fig. 1-4, the present invention provides a composite filter element assembly, comprising:
The utility model discloses a set up first filter core and second part, the second filter core includes second hollow fiber filter membrane silk, the second filter core is located the axial one end of first filter core, the water that raw water import got into can pass through first filter core filters to get into when filtering the inside of first hollow fiber filter membrane silk and finally pass through produce the export and derive, the hydroenergy that does not get into the inside of first filter core 1 can pass through second filter core 2 filters, and gets into when filtering the inside of second hollow fiber filter membrane silk and finally lead out through produce water export 200, radially arrange these fiber filter membrane silks together, do not have the condition of beating the glue on the diaphragm, and the density of radially filling also can design according to specific application to improve effective area; compared with the traditional filter element, the hollow fiber nanofiltration or reverse osmosis technology 1) adopted in the technical scheme has high filtration precision, and compared with the traditional ultrafiltration filter element technology, the technical scheme has good separation effect on divalent and high-valence salts and small molecular organic matters, can improve the filtration precision and reduce scaling risk; 2) the area of the filter element membrane is effectively increased, the hollow fiber nanofiltration or reverse osmosis technology adopted by the technical scheme can effectively utilize space, increase the membrane area and improve the water quality purification effect; 3) the operation pressure is small, the operation cost is low, the hollow fiber nanofiltration technology adopted by the technical scheme is that under the action of pressure difference, salt and small molecular substances permeate the nanofiltration membrane, and the operation pressure is lower than that of a reverse osmosis filter element; 4) the formation of the first-stage and second-stage filtering structure can also improve the recycling rate of the wastewater.
Preferably, still include filter element shell 3 and top end cover 14, raw water inlet 100, produce water outlet 200 and waste water outlet 300 all set up the axial first end of filter element shell 3, top end cover 14 with the axial second end of filter element shell 3 meets. Utilize the utility model discloses the membrane core subassembly of production, its water inlet, delivery port and dense exhalant outlet are located same end, can realize convenient installation, promote user experience.
Can't satisfy the problem that filter fineness is high, the running cost is low, produce that flux of water is big, the installation is convenient simultaneously to traditional filter element group spare, the utility model provides a filter fineness is high, produce that flux of water is big filter element group spare technical scheme can effectively solve the problem that the installation is convenient, specifically includes:
1. the traditional ultrafiltration filter core has low filtration precision and is easy to scale;
2. the traditional reverse osmosis filter element has high operation pressure and small effective membrane area;
3. the traditional nanofiltration filter core has low space utilization rate and low water production flux;
4. the water inlet, the water production port and the concentrated water discharge port of the conventional hollow fiber nanofiltration membrane core are on different surfaces, so that the mounting convenience is insufficient, and the user experience is poor.
The solution to these several problems can improve the flux of produced water, improve the utilization ratio of the membrane surface, improve the water quality purification effect, and avoid the situation of difficult installation.
The utility model discloses two sections filters of one-level (preferred RO filter core or receive and strain), improve the rate of recovery, improve the filter fineness and realize through the cavity membrane silk, two sections structures of cavity membrane silk + one-level, the problem of solution can also improve the rate of recovery of producing water when improving the precision.
Different from traditional filter element group spare, the utility model provides a radial hollow fiber who arranges is received and is strained or two segmentation compound filter element group spares of reverse osmosis one-level, and effective membrane area is big, filter fineness is high, it is big to produce water flux, can satisfy user's water purification's demand, can solve the complicated problem of core changing operation simultaneously, improves filter core treatment efficiency. Be different from traditional filter element group spare, the utility model discloses utilize hollow fiber to receive and strain or reverse osmosis membrane silk forms two segmentation filter core structures, improve the membrane face utilization ratio, design water inlet, delivery port and dense water discharge port in same one end, simplified filter core installation operation. The hollow fiber nanofiltration or reverse osmosis is of a hollow filamentous structure, filtered water can enter the hollow interior, and water which cannot enter the hollow interior is concentrated water or waste water containing high impurities.
In some embodiments, still include first section filter core membrane shell 4 and second section filter core membrane shell 5, first section filter core membrane shell 4 with second section filter core membrane shell 5 all set up in the filter core shell 3, second section filter core membrane shell 5 set up in the axial one end of first section filter core membrane shell 4, the radial inboard setting of second section filter core membrane shell 5 the second filter core 2, the radial inboard setting of first section filter core membrane shell 4 the first filter core 1. This is the utility model discloses a composite filter element's preferred structural style, can inject the shell shape through filter core shell, its inside first section filter core membrane shell and second section filter core membrane shell of setting up, second section filter core membrane shell is used for injecing the second filter core, first filter core is located the axial top of second section filter core membrane shell, make first filter core and second filter core arrange from top to bottom at the axial direction, make water from the first filter core of axial top to bottom filter and by producing the water export and seeing off, the water that does not get into in the first filter core reachs second filter core department again and filters, form the two-section filtration structural style of one-level, the improvement is to the utilization efficiency and the recovery efficiency of waste water.
In some embodiments, the cartridge housing 3 is a cylindrical structure, the first hollow fiber filtration membrane filaments are in a U-shaped configuration with straight sides extending along the axial direction of the cartridge housing 3, and the second hollow fiber filtration membrane filaments are in a U-shaped configuration with straight sides extending along the axial direction of the cartridge housing 3; the first hollow fiber filtering membrane filaments are multiple and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell 3; the second hollow fiber filtering membrane filaments are a plurality of and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell 3. This is the utility model discloses a filter core shell's preferred structural style, first hollow fiber filtration membrane silk and the second hollow fiber filtration membrane silk that extend along axial direction to and a plurality of interval arrangement's first hollow fiber filtration membrane silk and second hollow fiber filtration membrane silk can effectively increase the area of contact with water in the space direction, improve the membrane area, improve the filter effect.
In some embodiments, the side of the top end cap 14 facing the cartridge housing 3 has a first channel 6, the interior of the cartridge housing 3 is formed as a first cavity 7, the first segment of cartridge membrane shell 4 and the second segment of cartridge membrane shell 5 are both located within the first cavity 7, the radial inner side of the first section of the filter element membrane shell 4 forms a second cavity 8, the first filter element 1 is positioned in the second cavity 8, the raw water inlet 100 is communicated with one end of the first channel 6, the other end of the first channel 6 is communicated with the first cavity 7, the first cavity 7 is communicated with the second cavity 8 through a first raw water outlet 41 arranged on the first section of the filter element membrane shell 4, so as to guide water into the first filter element 1 for filtration, and the first raw water outlet 41 is a radial through hole radially penetrating through the inner and outer walls of the first-stage filter element membrane shell 4. The utility model discloses still orientation through the top end cover the first passageway of one side of filter core shell can filter the raw water through leading-in first filter core department of first cavity, and the pure water part gets into inside the cavity of first filter core, and what failed to get into the cavity of first filter core is waste water, and it further gets into and filters in the second filter core, improves water use rate.
In some embodiments, the interior of the second filter element membrane shell 5 forms a third cavity 9, the second filter element 2 is located in the third cavity 9, the first filter element membrane shell 4 is axially formed with at least one first waste water outlet 51 penetrating through the inner wall and the outer wall thereof, and water in the second cavity 8 can enter the third cavity 9 through the first waste water outlet 51. The utility model discloses still can be with the leading-in and the entering of first section waste water export third space of the waste water that filters off in the first filter core through the inside third cavity of second section filter core membrane shell, and then filter in second filter core department, improve the utilization efficiency to waste water.
In some embodiments, still include first section filter core end cover 13a, the axial one end of first filter core 1 is connected and is provided with first bonding portion 13, the periphery cover of first bonding portion 13 is established first section filter core membrane shell 4, the periphery of first section filter core membrane shell 4 with sealing connection between first section filter core end cover 13a, first bonding portion 13 with first section filter core end cover 13a forms on the axial direction second passageway 10, through the water after first filter core 1 filters gets into in the second passageway 10. The utility model discloses still can will get into the leading-in second passageway of the pure water that filters out in the first filter core through the second passageway between first filter core axial one end and the first section filter core end cover, and then derive through producing the water export. In some embodiments, a first bonding portion 13 is connected to one axial end of the first filter element 1, a first filter element membrane shell 4 is sleeved on the outer periphery of the first bonding portion 13, the outer periphery of the first filter element membrane shell 4 is connected with the first filter element end cover 13a in a sealing manner, and the first bonding portion 13 and the first filter element end cover 13a form the second channel 10 in the axial direction. The utility model discloses still set up first bonding portion through the axial one end with first filter core, can bond it to first section filter core membrane shell to first section filter core end cover is located the axial below of first section filter core membrane shell, and sealing connection is provided with the sealing washer between its and the first section filter core membrane shell, thereby realizes the fixed to the axial one end of first filter core, and first bonding portion can hold water and pass.
In some embodiments, a second-stage filter element end cap 13b is further disposed at one axial end of the second-stage filter element membrane shell 5, a third channel 11 is further disposed between the second-stage filter element membrane shell 5 and the second-stage filter element end cap 13b, water filtered by the second filter element 2 enters the third channel 11, and the filtered water can be discharged through the water production outlet 200 after the second channel 10 is communicated with the third channel 11. The utility model discloses still through the setting of second section filter core end cover, make and form the third passageway between its and the second section filter core membrane shell, the water after the second filter core filters can derive the pure water to producing the mouth of a river through the third passageway, realizes the effect of deriving the pure water after the second filter core filters.
In some embodiments, a communication pipe 12 is disposed in a portion of the third cavity 9, which is located radially inside the second filter element 2, one end of the communication pipe 12 is communicated with the produced water outlet 200, and the other end is communicated with the second channel 10, so that water entering the interior of the first filter element 1 can be discharged through the produced water outlet 200 through the communication pipe 12.
The utility model discloses still export through the product water that sets up on the axial first end of filter core shell to and just be located in the inside of second section filter core membrane shell the radial inboard communicating pipe of second filter core can be with the product water of the radial inboard part of second filter core in the second cavity derive to producing the water export through communicating pipe, thereby effectively derive the pure water of crossing to filter out.
In some embodiments, the axial end of the second filter element 2 is provided with a third bonding portion 16 in a connecting manner, the second section of filter element membrane shell 5 is sleeved on the outer periphery of the third bonding portion 16, the communicating pipe 12 is penetrated by the inner periphery of the third bonding portion 16, and water filtered out from the inside of the second filter element 2 can enter the third channel 11 after passing through the third bonding portion 16. The utility model discloses the third bonding portion that still sets up through the axial one end of second filter core can fix its axial one end to in wearing to locate the third bonding portion communicating pipe, the inside filtration of second filter core goes out the pure water and can pass and get into the third passageway via third bonding portion, discharges the pure water.
In some embodiments, the water purifier further comprises a third filter element end cover 15, the third filter element end cover 15 is sleeved on the periphery of the second filter element membrane shell 5, a second section of wastewater outlet 52 is formed in the second filter element membrane shell 5 in an axially penetrating manner, a fourth channel 17 is formed between the third filter element end cover 15 and the second section of filter element end cover 13b, one end of the fourth channel 17 is communicated with the wastewater outlet 300, and the other end of the fourth channel can be communicated with the third cavity 9, so that water which does not enter the second filter element 2 can enter the fourth channel 17 through the second section of wastewater outlet 52 and then be discharged through the wastewater outlet 300; the third cartridge end cap 15 is axially spaced from the cartridge housing 3 to define the first passage 6. The utility model discloses a setting of third filter core end cover can and second section filter core membrane shell between form the fourth passageway, and the fourth passageway can be through second section waste water outlet and third cavity intercommunication to with not getting into in the third cavity the inside water that is filtered off the waste water promptly of second filter core leading-in fourth passageway and derive to waste water outlet 300.
In some embodiments, the second segment cartridge membrane shell 5 is sealingly connected (via a first seal member 18) between its outer periphery and the second segment cartridge end cap 13 b.
In some embodiments, the waste water outlet 300 is located radially outward of the water production outlet 200; and/or the first hollow fiber filtration membrane filaments are hollow fiber nanofiltration membrane filaments or hollow reverse osmosis membrane filaments.
The utility model also provides a water purification system, it includes preceding arbitrary compound filter element group spare.
Fig. 1 is a cross-sectional view of a cartridge assembly, fig. 2 is an assembly view of a first cartridge, fig. 3 is an assembly view of a second cartridge, and fig. 4 is an assembly view of a cartridge membrane shell and end cap. As shown in the figure, the filter element assembly comprises a filter element membrane shell (namely a filter element shell 3), a top end cover, a third filter element end cover, a first filter element and a second filter element, wherein the first filter element comprises a first section of filter element membrane shell, a first section of filter element end cover and a first membrane bundle (preferably a first hollow fiber filter membrane filament), the second filter element comprises a second section of filter element membrane shell and a second membrane bundle (preferably a second hollow fiber filter membrane filament), the first membrane bundle and the second membrane bundle are respectively composed of a plurality of hollow fiber nanofiltration membrane filaments or reverse osmosis membrane filaments, the area ratio of the two membrane filaments is 1.5-2.5: 1, the filter element membrane shell is used for filling the membrane filaments, the first section of filter element membrane shell is used for fixing the first membrane bundle and conducting diversion of raw water and first section of waste water, the first section of filter element end cover is used for forming a water production cavity with the first membrane bundle and separating water and waste water, the second section of filter element shell is used for fixing the second membrane bundle and separating the first section of water and the second membrane bundle, the second section of filter element end cover is used for forming a water producing cavity with the second membrane bundle and separating water and wastewater, the top end cover is used for forming a sealing cavity with the filter element membrane shell, and the third filter element end cover is used for separating raw water and wastewater.
The components are described in the order of assembly of the filter cartridge, with the second cartridge described below:
1. the first section of filter element membrane shell is divided into a side surface, a bottom surface and an interface surface, the side surface is provided with a plurality of through holes which are communicated with raw water (namely a first section of raw water outlet), the through holes are arranged at the upper positions to facilitate air exhaust, and the number and the specification of the through holes can be designed according to specific filter element components; the bottom surface of the first section of filter element membrane shell is provided with a through hole communicated with the second filter element, wastewater generated by the first filter element is taken as raw water of the second filter element, so that a first section of concentrated water outlet is also called as a second section of raw water inlet, a first section of filter element membrane shell interface surface is used for fixing the first membrane bundle and forming a water production cavity, a groove is reserved outside the interface surface of the first section of filter element membrane shell, a sealing ring is sleeved during installation, isolation of wastewater and produced water is facilitated, and water production purity is guaranteed.
2. The bottom end of the first membrane bundle is a water production end face, all hollow fiber nanofiltration or reverse osmosis membrane filaments of the first membrane bundle are U-shaped, and the bent end does not need to be poured by adopting the U-shaped structure, so that the effective membrane area is increased; all membrane filaments are bent into a U shape, the head ends and the tail ends of the membrane filaments are positioned on the interface surface of the first section of the filter element membrane shell and are poured into membrane filament bundles by using hard glue, and membrane holes are reserved on the end surfaces of the hard glue and used for producing water and yielding water. The pouring layer can be poured by epoxy resin, so that the membrane filaments are more uniformly distributed, the epoxy resin has good adhesion and high bonding strength, and can bear higher pressure.
3. The first section of filter element end cover is divided into a first section of filter element membrane shell contact surface and a second section of filter element membrane shell contact surface and is used for separating first section wastewater and first section produced water.
The second cartridge is assembled as follows:
1. the second section of filter element membrane shell is divided into a side surface, a bottom surface, a central surface and a mouth surface, wherein the side surface is used for separating raw water; the bottom surface is provided with a through hole for discharging waste water; the central plane is used for separating the first section of produced water from the second filter element and conducting diversion of the first section of produced water, a groove is reserved at the upper end of the central plane, a sealing ring is sleeved in the groove during installation, the first filter element is fixed when the central plane is connected with the end cover of the first section of filter element, and the produced water is ensured to be isolated from the second filter element; the interface surface is used for fixing the second membrane bundle and forming a water producing cavity, a groove is reserved on the outer side of the interface surface, and a sealing ring is sleeved in the mounting process, so that the isolation of waste water and produced water is facilitated, and the purity of the produced water is ensured.
2. The bottom end of the second membrane bundle is a water production end face, all hollow fiber nanofiltration or reverse osmosis membrane filaments of the second membrane bundle are U-shaped, and the bent end does not need to be poured by adopting the U-shaped structure, so that the effective membrane area is increased; all membrane filaments are bent into a U shape, the head ends and the tail ends of the membrane filaments are positioned on the interface surface of the first section of the filter element membrane shell and are poured into membrane filament bundles by using hard glue, and membrane holes are reserved on the end surfaces of the hard glue and used for producing water and yielding water. The pouring layer can be poured by epoxy resin, so that the membrane filaments are more uniformly distributed, the epoxy resin has good adhesion and high bonding strength, and can bear higher pressure.
3. The second section of filter element end cover is divided into a contact surface with a second membrane bundle glue layer, a contact surface with a second section of filter element membrane shell and a flow guide interface, and a water production cavity is formed at the contact surface of the second section of filter element end cover and the second membrane bundle glue layer and separates water production from first section wastewater; a groove is reserved on the outer side of the flow guide interface surface, and a sealing ring is sleeved in the installation process, so that the isolation of waste water and produced water is facilitated, and the purity of the produced water is ensured.
After the first filter element and the second filter element are assembled respectively, the first section of filter element end cover and the second section of filter element membrane shell are assembled together, and the joint of the first section of filter element membrane shell and the second section of filter element membrane shell is sealed by gluing (glue seal 19), so that the raw water can not permeate into the second filter element.
The filter element end cover is divided into a raw water contact surface, a second section wastewater contact surface and a flow guide interface, and the filter element end cover and the second section wastewater contact surface form a wastewater cavity, separate the raw water from the second section wastewater and guide the second section wastewater; a groove is reserved on the outer side of the flow guide interface surface, and a sealing ring is sleeved in the installation process, so that the isolation of raw water and waste water is facilitated, and the purity of the raw water which is not polluted by the waste water is ensured.
The equipment back is accomplished to above inner assembly, with the whole filter core membrane shell that inserts of inner assembly, filter core membrane shell is integrated into one piece formula casing, and the three opening that the concentric circle formula was arranged is designed at bottom center, from inside to outside in proper order for producing water delivery port, waste water outlet, raw water inlet.
The top end cover forms a sealed cavity with the filter element membrane shell through spin-melt sealing or spiral sealing, and the sealing performance of the filter element assembly is guaranteed.
The hollow fiber nanofiltration or reverse osmosis primary two-stage composite filter element operation water path comprises:
raw water enters the filter element through a raw water inlet at the bottom of the filter element, enters the first filter element through a first section raw water outlet arranged on a first section filter element membrane shell, membrane filaments filter the raw water by using pressure difference, and produced water flows into a water production cavity formed by a first section filter element end cover and a first section pure water outlet glue layer through a first membrane bundle bottom opening and then flows out from a bottom produced water outlet through a channel formed in the center of a second section filter element membrane shell; the waste water generated by the first section of filter element is used as raw water of the second section of filter element, the waste water enters the second filter element through a first section of thick water outlet on a first section of filter element membrane shell, the membrane wire purifies the water by using pressure difference, and the produced water enters a water producing cavity formed by a second section of filter element end cover and a second section of pure water outlet glue layer through a second membrane bundle bottom end opening and then flows out through a produced water outlet; and the wastewater is discharged from a wastewater outlet at the bottom of the filter element membrane shell through the diversion of the filter element end cover through a second section concentrated water outlet of the second section filter element membrane shell.
A hollow fiber nanofiltration or reverse osmosis one-stage two-section type composite filter element flushing waterway:
raw water enters the filter element through the raw water inlet, enters the first filter element through the first section raw water outlet arranged on the first section filter element membrane shell, and washes the surface of the membrane wire by utilizing water flow, the washing water flow of the first filter element enters the second filter element through the first section concentrated water outlet on the first section filter element membrane shell, and continuously washes the surface of the membrane wire, and finally the washing water is discharged through the waste water outlet at the bottom of the filter element membrane shell.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (14)
1. A composite filter element assembly, comprising: the method comprises the following steps:
a raw water inlet (100), a produced water outlet (200), a waste water outlet (300), a first filter element (1) and a second filter element (2), the first filter element (1) comprises a first hollow fiber filtering membrane wire, the second filter element (2) comprises a second hollow fiber filtering membrane wire, the second filter element (2) is positioned at one axial end of the first filter element (1), water entering from the raw water inlet (100) can be filtered by the first filter element (1), and enters the inside of the first hollow fiber filtering membrane wire during filtering and is finally led out through the water production outlet (200), water which does not enter the inside of the first filter element (1) can be filtered through the second filter element (2), and the water which enters the inside of the second hollow fiber filtering membrane wire during filtering is finally led out through the water production outlet (200), and the water which does not enter the inside of the second filter element (2) can be communicated with the waste water outlet (300) and led out.
2. The composite filter element assembly of claim 1, wherein:
still include filter core shell (3) and top end cover (14), raw water import (100) produce water export (200) with waste water outlet (300) all set up the axial first end of filter core shell (3), top end cover (14) with the axial second end of filter core shell (3) meets.
3. The composite filter element assembly of claim 2, wherein:
still include first section filter core membrane shell (4) and second section filter core membrane shell (5), first section filter core membrane shell (4) with second section filter core membrane shell (5) all set up in filter core shell (3), second section filter core membrane shell (5) set up in the axial one end of first section filter core membrane shell (4), just the radial inboard of second section filter core membrane shell (5) sets up second filter core (2), the radial inboard of first section filter core membrane shell (4) sets up first filter core (1).
4. The composite filter element assembly of claim 2, wherein:
the filter element shell (3) is of a cylindrical structure, the first hollow fiber filtering membrane wire is of a U-shaped structure, the straight edge of the first hollow fiber filtering membrane wire extends along the axial direction of the filter element shell (3), the second hollow fiber filtering membrane wire is of a U-shaped structure, and the straight edge of the second hollow fiber filtering membrane wire extends along the axial direction of the filter element shell (3); the first hollow fiber filtering membrane filaments are multiple and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell (3); the second hollow fiber filtering membrane filaments are multiple and are arranged at intervals along the radial direction and the circumferential direction of the filter element shell (3).
5. The composite filter element assembly of claim 3, wherein:
one side of the filter element shell (3) facing the second section filter element membrane shell (5) is provided with a first channel (6), the radial inner side of the filter element shell (3) is formed into a first cavity (7), the first section filter element membrane shell (4) and the second section filter element membrane shell (5) are both positioned in the first cavity (7), the radial inner side of the first section filter element membrane shell (4) is formed into a second cavity (8), the first filter element (1) is positioned in the second cavity (8), a raw water inlet (100) is communicated with one end of the first channel (6), the other end of the first channel (6) is communicated with the first cavity (7), the first cavity (7) is communicated with the second cavity (8) through a first raw water outlet (41) formed in the first section filter element membrane shell (4) so as to guide water into the first filter element (1) for filtering, the first raw water outlet (41) is a radial through hole which radially penetrates through the inner wall and the outer wall of the first section of filter element membrane shell (4).
6. The composite filter element assembly of claim 5, wherein:
the inside of second section filter core membrane shell (5) forms third cavity (9), second filter core (2) are located in third cavity (9), be formed with at least one first section waste water export (51) along the mode of axial in order to run through its interior outer wall on first section filter core membrane shell (4), water in second cavity (8) can pass through first section waste water export (51) get into in third cavity (9).
7. The composite filter element assembly of claim 6, wherein:
still include first section filter core end cover (13a), the axial one end of first filter core (1) is connected and is provided with first portion of bonding (13), the periphery cover of first portion of bonding (13) is established first section filter core membrane shell (4), the periphery of first section filter core membrane shell (4) with sealing connection between first section filter core end cover (13a), first portion of bonding (13) with first section filter core end cover (13a) forms second passageway (10) on the axial direction, through water after first filter core (1) filters gets into in second passageway (10).
8. The composite filter element assembly of claim 7, wherein:
the axial one end of second section filter core membrane shell (5) still is provided with second section filter core end cover (13b), still have third passageway (11) between second section filter core membrane shell (5) and second section filter core end cover (13b), through water after second filter core (2) filters gets into in third passageway (11), second passageway (10) with third passageway (11) communicate after can pass through produce water outlet (200) and discharge the water after filtering.
9. The composite filter element assembly of claim 8, wherein:
the part of the third cavity (9) which is located on the radial inner side of the second filter element (2) is provided with a communicating pipe (12), one end of the communicating pipe (12) is communicated with the water production outlet (200), the other end of the communicating pipe is communicated with the second channel (10), and water entering the first filter element (1) can be discharged from the water production outlet (200) through the communicating pipe (12).
10. The composite filter element assembly of claim 9, wherein:
the axial one end of second filter core (2) is connected and is provided with third bonding portion (16), the periphery cover of third bonding portion (16) is established second section filter core membrane shell (5), the interior week of third bonding portion (16) is worn to establish communicating pipe (12), process the inside hydroenergy of crossing of second filter core (2) can pass through enter behind third bonding portion (16) in third passageway (11).
11. The composite filter element assembly of claim 8, wherein:
the filter core is characterized by further comprising a third filter element end cover (15), the third filter element end cover (15) is sleeved on the periphery of the second section of filter element membrane shell (5), a second section of wastewater outlet (52) is formed in the second section of filter element membrane shell (5) in a penetrating mode along the axial direction, a fourth channel (17) is formed between the third filter element end cover (15) and the second section of filter element end cover (13b), one end of the fourth channel (17) is communicated with the wastewater outlet (300), and the other end of the fourth channel can be communicated with the third cavity (9), so that water which does not enter the second filter element (2) can enter the fourth channel (17) through the second section of wastewater outlet (52) and then is discharged through the wastewater outlet (300); the third cartridge end cap (15) is axially spaced from the cartridge housing (3) to form the first channel (6).
12. The composite filter element assembly of claim 8, wherein:
the periphery of the second section of filter element membrane shell (5) is in sealing connection with the second section of filter element end cover (13 b).
13. The composite filter element assembly of claim 1, wherein:
the waste water outlet (300) is located radially outside the water production outlet (200); and/or the presence of a gas in the gas,
the first hollow fiber filtration membrane filaments are hollow fiber nanofiltration membrane filaments or hollow reverse osmosis membrane filaments.
14. A water purification system, its characterized in that: comprising the composite filter element assembly of any one of claims 1-13.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115353173A (en) * | 2022-08-16 | 2022-11-18 | 华邦特西诺采新材料股份有限公司 | Papermaking water treatment equipment and treatment method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353173A (en) * | 2022-08-16 | 2022-11-18 | 华邦特西诺采新材料股份有限公司 | Papermaking water treatment equipment and treatment method thereof |
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