CN214780922U - Reverse osmosis and nanofiltration membrane component - Google Patents

Abstract

The utility model discloses a reverse osmosis and nanofiltration membrane component, which comprises a membrane component; wherein, constitute by a plurality of filter unit that connect around through the screw thread, filter unit includes the membrane shell, the membrane shell endotheca is equipped with filtering component, filtering component includes the center tube and coils the filter core outside the center tube. The utility model has the advantages that: under the conditions of reducing the flow rate of waste water and improving the recovery rate, because a plurality of filtering units are connected in series, the recovery rate of each membrane module is lower, so that the whole membrane module can operate under the condition of higher recovery rate, better water quality can be achieved, the condition of membrane scaling is relieved, and the replacement cost is reduced.

Description

Reverse osmosis and nanofiltration membrane component

Technical Field

The utility model relates to a reverse osmosis and nanofiltration membrane component belongs to water treatment filtration membrane field.

Background

Along with the development of society, the pollution of water source, water resource are more and more nervous, utilize the reverse osmosis, the pollutant (such as harmful substance such as mud, heavy metal, bacterium, virus) in the effective removal aquatic of water purifier of receive filter membrane component makes us can drink clean water, and because its small in size, convenient to operate's reason such as more and more families, hotel, school begin to use the water purifier. The reverse osmosis membrane and the nanofiltration membrane element are core components in the water purifier, the water production effect of the water purifier is directly related to the water production efficiency of the reverse osmosis membrane element, and the reverse osmosis membrane and the nanofiltration membrane element are used as consumable materials in the water purifier in a highly periodic replacement mode, so that the demand of the reverse osmosis membrane and the nanofiltration membrane element is increased day by day, and the market of owners is huge.

In recent years, the requirements of the nation on the water purifier are gradually improved, the waste water discharge of the water purifier is required to be reduced, the recovery rate of the membrane element is improved, the places with wide regions and complex water quality in China can cause rapid scaling and pollution blockage of the membrane element, and the scale and pollution blockage can be replaced to ensure the quality of the pure water, so the water use cost is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reverse osmosis and receive filter membrane subassembly can effectively solve the problem that current membrane element replacement cost is high.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a reverse osmosis and nanofiltration membrane assembly comprising a membrane assembly; wherein, constitute by a plurality of filter unit through the screw thread front and back connection, filter unit includes the membrane shell, the membrane shell endotheca is equipped with filter element, filter element includes the center tube and convolutes in the filter core of center tube outside, under the circumstances that reduces the waste water flow, improves the rate of recovery, because the series connection of a plurality of filter unit, the rate of recovery of spreading out at every membrane module is lower, this just makes whole membrane module can operate under the higher rate of recovery circumstances, can also reach better quality of water to slow down the condition of membrane scale deposit, reduce the replacement cost.

Preferably, a water outlet channel is arranged at the bottom of the membrane shell arranged at the lowest end, and pure water flowing out after raw water is filtered by the filter part is discharged from the water outlet channel.

Further, the both ends of membrane shell inner wall are equipped with twice O type groove respectively, the filter core overcoat is equipped with O type circle, O type circle install in O type inslot, different with the sealing method of traditional tape-stripping water seal, seal through the sticky tape winding under the membrane element, if the water seal is crooked, the sticky tape is not hard up all can cause the seepage of system for produce water quality of water and reduce, seal up through the connection of O type groove and O type circle and make the membrane element area bigger, the flux is bigger, life is longer, and sealed effect is higher.

Preferably, the O-shaped ring is made of rubber or made of other materials with sealing performance, so that the rubber is low in cost, and the production cost of the membrane assembly can be reduced.

Preferably, the center tube both ends are intake end and play water end respectively, the end of intaking is equipped with the cross-section and personally submits the notch cuttype insertion groove, assembles at the filter unit and is connected in inserting the insertion groove through the afterbody of center tube, connects by the screw thread outside the membrane shell again, and the practical connection of structure is stable.

Furthermore, an isolation layer is arranged between the water inlet end and the water outlet end and used for filtering raw water entering the filter element and preventing the raw water from directly flowing out of the central tube.

Preferably, the number of the filter units is at least 1, and personnel can adjust the number of the filter units according to the quality of water quality, so that the number of the filter units can be reduced when the water quality is good, and the number of the filter units can be increased when the water quality is poor.

Preferably, the filter element is an RO filter element; or the filter element is an NF filter element, and the selection of which filter element is determined by the water quality of a water source.

Compared with the prior art, the utility model has the advantages that:

under the conditions of reducing the flow rate of waste water and improving the recovery rate, because a plurality of filtering units are connected in series, the recovery rate of each membrane module is lower, so that the whole membrane module can operate under the condition of higher recovery rate, better water quality can be achieved, the condition of membrane scaling is relieved, and the replacement cost is reduced.

Drawings

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

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A in FIG. 2;

in the figure:

10. a membrane module; 11. a filtration unit; 12. a membrane shell; 13. a filter member; 14. a central tube; 15. a filter element; 16. a water outlet channel; 17. an O-shaped groove; 18. an O-shaped ring; 19. a water inlet end; 20. a water outlet end; 21. inserting the groove; 22. an isolation layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3 for the utility model relates to a reverse osmosis and receive embodiment one of membrane module 10, including membrane module 10, membrane module 10 comprises a plurality of filter unit 11 through threaded front and back connection, filter unit 11 includes membrane shell 12, at membrane shell 12 endotheca be equipped with filter element 13, filter element 13 includes center tube 14 and the filter core 15 of convoluteing outside center tube 14, membrane shell 12 bottom of locating the lower extreme is connected with exhalant canal 16, filter core 15 is used for filtering the raw water, the raw water filters for the pure water in getting into filter core 15, flow to center tube 14 again, through a plurality of sections filter unit 11, the pure water flows from exhalant canal 16 of lower extreme membrane shell 12, be used for drinking or other uses.

Referring to fig. 2-3, two O-shaped grooves 17 are respectively formed at two ends of the inner wall of the membrane shell 12, an O-shaped ring 18 is sleeved outside the filter element 15, the O-shaped ring 18 is installed in the O-shaped groove 17, the O-shaped ring 18 is made of rubber, the cost is low, the production cost of the membrane assembly 10 can be reduced, the O-shaped ring 18 and the O-shaped groove 17 are arranged to be matched for sealing, the traditional mode that a water seal is pasted by a traditional adhesive tape is replaced, the stability is stronger, after the traditional sealing is used for a long time, the traditional sealing is aged to cause the water seal to shift, the sealing effect is reduced, the problem cannot happen through the sealing of the O-shaped groove 17 and the O-shaped ring 18, the sealing effect is better, the filter element 15 achieves the largest area according to the membrane shell 12, the area of the filter element 13 is larger, the flux is larger, and the service life is longer.

Referring to fig. 1-3 for the utility model relates to a reverse osmosis and receive embodiment two of membrane module 10, including membrane module 10, membrane module 10 comprises a plurality of filter unit 11 through threaded front and back connection, filter unit 11 includes membrane shell 12, at membrane shell 12 endotheca be equipped with filter element 13, filter element 13 includes center tube 14 and the filter core 15 of convoluteing outside center tube 14, membrane shell 12 bottom of locating the lower extreme is connected with exhalant canal 16, filter core 15 is used for filtering the raw water, the raw water filters for the pure water in getting into filter core 15, flow to center tube 14 again, through a plurality of sections filter unit 11, the pure water flows from exhalant canal 16 of lower extreme membrane shell 12, be used for drinking or other uses.

Referring to fig. 2-3, the present embodiment is different from the above embodiments in that the two ends of the central tube 14 are respectively a water inlet end 19 and a water outlet end 20, the water inlet end 19 is provided with an insertion groove 21 having a step-shaped cross section, when the filter units 11 are connected, the water outlet end 20 of the central tube 14 in the previous filter unit 11 is connected to the water inlet end 19 of the central tube 14 in the next filter unit 11, so that the connection can prevent raw water from leaking, the speed of installation alignment is increased, the convenience of the membrane module 10 is enhanced, and then the two ends of the membrane housing 12 are fixedly connected by the screw threads, so that a complete membrane module 10 can be obtained. An isolating layer 22 is arranged between the water inlet end 19 and the water outlet end 20, the isolating layer 22 is close to the water inlet end 19, the isolating layer 22 is used for isolating raw water and enabling the raw water to flow into the filter element 15, the number of the filter units 11 is at least one, personnel can adjust the number of sections of the filter units 11 according to the quality of water, the number of the filter units 11 can be reduced when the water quality is good, the number of the filter units 11 can be increased when the water quality is poor, after the membrane module 10 is scaled and blocked, one section or a plurality of sections of the filter units 11 in the module can be replaced according to the condition, and replacement cost is saved.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims (8)

1. A reverse osmosis and nanofiltration membrane component is characterized in that: comprises that

A membrane module;

the membrane module comprises a plurality of filtering units which are connected in a front-back mode through threads, each filtering unit comprises a membrane shell, a filtering component is sleeved in each membrane shell, and each filtering component comprises a central tube and a filter element wound outside the central tube.

2. The reverse osmosis and nanofiltration membrane module of claim 1, wherein: the bottom of the membrane shell arranged at the lowest end is connected with a water outlet channel.

3. The reverse osmosis and nanofiltration membrane assembly of claim 1 or 2, wherein: two ends of the inner wall of the membrane shell are respectively provided with two O-shaped grooves, the filter element is sleeved with an O-shaped ring, and the O-shaped ring is arranged in the O-shaped grooves.

4. A reverse osmosis and nanofiltration membrane module according to claim 3, wherein: the O-shaped ring is made of rubber.

5. The reverse osmosis and nanofiltration membrane module of claim 1, wherein: the water inlet end and the water outlet end are respectively arranged at the two ends of the central tube, and the water inlet end is provided with an insertion groove with a stepped cross section.

6. The reverse osmosis and nanofiltration membrane assembly of claim 5, wherein: an isolation layer is arranged between the water inlet end and the water outlet end.

7. The reverse osmosis and nanofiltration membrane module of claim 1, wherein: the number of the filter units is at least 1.

8. The reverse osmosis and nanofiltration membrane module of claim 1, wherein: the filter element is an RO filter element; or a NF cartridge.

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