CN110759508A

CN110759508A - Filter element assembly and ultrafiltration water purifier

Info

Publication number: CN110759508A
Application number: CN201911156331.3A
Authority: CN
Inventors: 李海妃; 李友铃
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-02-07

Abstract

The invention relates to a filter element assembly and an ultrafiltration water purifier, wherein the filter element assembly comprises a filter bottle, an ultrafiltration membrane assembly and an active carbon assembly, wherein the ultrafiltration membrane assembly and the active carbon assembly are detachably arranged in the filter bottle, the ultrafiltration membrane assembly is of an annular structure, the active carbon assembly is inserted in the ultrafiltration membrane assembly, a water inlet and a water outlet are formed in the filter bottle, a water inlet passage of the active carbon assembly is communicated with the water inlet of the filter bottle, a water production port of the ultrafiltration membrane assembly is communicated with the water outlet of the filter bottle, and water entering from the water inlet of the filter bottle flows out of the water outlet after being sequentially filtered by the active carbon assembly and the ultrafiltration membrane assembly. The service life of the device is prolonged while the overall size is reduced.

Description

Filter element assembly and ultrafiltration water purifier

Technical Field

The invention relates to the field of water purification, in particular to a filter element assembly and an ultrafiltration water purifier.

Background

The ultra-filtration water purifier can meet the requirements of water quality sanitation and safety by carrying out multi-stage filtration, and the multi-stage filtration is realized by different filter elements. In general, if each stage of filter elements is installed in one filter flask, the overall ultrafiltration water purifier is very bulky and inconvenient to install and use. For this reason, integrated filter element assemblies have come into play. Namely, the filter elements at all levels are integrated in one filter bottle, so that the filtering requirement is met, and the whole size of the ultra-filtration water purifier is reduced. But generally, the service life of the ultra-filtration water purifier with high integration is short.

Disclosure of Invention

Based on this, there is a need for a filter element assembly and an ultrafiltration water purifier, which can reduce the overall size and prolong the service life thereof.

The utility model provides a filter element subassembly, includes the filter flask to and detachably sets up milipore filter subassembly and active carbon assembly in the filter flask, milipore filter subassembly is the loop configuration, active carbon assembly inserts and establishes among the milipore filter subassembly, be equipped with water inlet and delivery port on the filter flask, active carbon assembly's the route of intaking with the water inlet intercommunication of filter flask, milipore filter subassembly produce the water mouth with the delivery port intercommunication of filter flask follows the water that the filter flask water inlet got into passes through in proper order active carbon assembly with follow after the milipore filter subassembly filters the delivery port flows out.

The above scheme provides a filter element assembly, with ultrafiltration membrane module with the active carbon subassembly is integrated in the filter flask, from water that the water inlet got into in proper order through water inlet passageway, active carbon subassembly and ultrafiltration membrane subassembly after discharge from the delivery port. The whole size is reduced while the requirement of water quality safety is met. After the ultrafiltration membrane component and the activated carbon component which are detachably arranged in the filter flask are used for a period of time, the ultrafiltration membrane component and the activated carbon component which are positioned outside the activated carbon component can be cleaned and reused, and the service life is prolonged. And the ultrafiltration membrane component to be cleaned is sleeved outside the activated carbon component, so that the cleaning process is simpler and more convenient, and the cleaning efficiency is improved.

In one embodiment, the active carbon assembly comprises inner PP cotton, an intermediate filter layer and outer PP cotton, wherein the intermediate filter layer is formed by melt-blowing carbon rods and PP cotton, the inner PP cotton surrounds the water inlet passage, the intermediate filter layer is sleeved outside the inner PP cotton, and the outer PP cotton is sleeved outside the intermediate filter layer.

In one embodiment, the pore size of the inner layer PP cotton filter is larger than that of the outer layer PP cotton filter.

In one embodiment, the pore diameter of the inner layer PP cotton filter is 10-15 um, and the pore diameter of the outer layer PP cotton filter is 1-5 um.

In one embodiment, the ultrafiltration membrane component comprises an inner shell, an ultrafiltration membrane and an outer shell, wherein the inner shell is sleeved outside the activated carbon component, the outer shell is sleeved outside the inner shell, the outer shell and the inner shell are arranged at intervals, and the ultrafiltration membrane is positioned between the inner shell and the outer shell.

In one embodiment, the water inlet and the water outlet are both arranged on the top wall of the filter flask, the water production end of the ultrafiltration membrane component and the top wall are arranged at intervals to form a water outlet passage for communicating the water outlet and the water production port of the ultrafiltration membrane component, one end of the inner shell, which is far away from the water outlet passage, is arranged at intervals with the filter flask, and the outer shell is provided with an exhaust hole.

In one embodiment, the water inlet is located in the middle of the top wall and the water outlet is located at the outer edge of the top wall.

In one embodiment, the last one end that is close to the water inlet of active carbon assembly is equipped with into water end cover, the last one end of keeping away from of active carbon assembly the water inlet is equipped with end cover, end cover will keep away from on the water inlet passageway the one end of water inlet is sealed, be equipped with the through-hole on the diapire of end cover of intaking, the lateral wall of through-hole extends to in the water inlet, form the wall of through-hole with be equipped with into water sealing washer between the lateral wall of water inlet, inlayer casing with be equipped with the inner seal circle between the lateral wall of end cover of intaking, outer casing with be equipped with the outer sealing washer between the filter flask.

In one of them embodiment, the water inlet with the delivery port all sets up the roof of filter flask, the diapire of filter flask is for setting up the filter flask lid on the lateral wall of filter flask, the filter flask lid in the primary importance with the lateral wall of filter flask is articulated, the filter flask lid in the second place with the lateral wall joint of filter flask, work as the filter flask lid with the lateral wall joint back of filter flask, the filter flask lid supports and presses on the sealed end cover.

In one embodiment, the ultrafiltration membrane comprises a polyvinylidene fluoride filtration membrane, a polysulfone filtration membrane, or a polyethersulfone filtration membrane.

An ultrafiltration water purifier comprises the filter element assembly.

The above-mentioned scheme provides an ultrafiltration water purifier, through adopting the filter element group spare in any above-mentioned embodiment, prolongs its life when reducing whole size. Specifically, the ultrafiltration membrane component and the activated carbon component are integrated in the filter flask, and when the ultrafiltration water purifier is used, water entering the ultrafiltration water purifier can be filtered by the activated carbon component and the ultrafiltration membrane component in sequence. The active carbon component can filter silt, rust, the suspended particles thing of aquatic, can adsorb residual chlorine and peculiar smell etc. of getting rid of the aquatic simultaneously. And the ultrafiltration membrane component can further intercept and filter colloid, bred bacteria and the like. Thereby ensuring that the water quality meets the sanitary and safe requirements and the whole size is smaller. After the ultrafiltration membrane component is used for a period of time, the ultrafiltration membrane component can be detached for repeated use after cleaning, and the service life of the ultrafiltration water purifier is effectively prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a filter element assembly according to the present embodiment.

Description of reference numerals:

10. a filter element assembly; 11. a filter flask; 111. a water inlet; 112. a water outlet; 113. a water outlet passage; 12. an ultrafiltration membrane module; 121. an inner shell; 122. ultrafiltration membranes; 123. an outer shell; 1231. an exhaust hole; 13. an activated carbon component; 131. a water inlet passage; 132. inner layer PP cotton; 133. an intermediate filter layer; 134. outer PP cotton; 14. a water inlet end cover; 141. a through hole; 15. sealing the end cap; 16. a water inlet sealing ring; 17. an inner seal ring; 18. and an outer seal ring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As shown in FIG. 1, in one embodiment, a filter cartridge assembly 10 is provided comprising a filter flask 11, and an ultrafiltration membrane assembly 12 and an activated carbon assembly 13 removably disposed in the filter flask 11. The ultrafiltration membrane component 12 is of an annular structure, and the activated carbon component 13 is inserted in the ultrafiltration membrane component 12. The water inlet 111 and the water outlet 112 are arranged on the filter bottle 11, the water inlet channel 131 of the activated carbon component 13 is communicated with the water inlet 111 of the filter bottle 11, the water producing port of the ultrafiltration membrane component 12 is communicated with the water outlet 112 of the filter bottle 11, and water entering from the water inlet 111 of the filter bottle 11 sequentially passes through the activated carbon component 13 and the ultrafiltration membrane component 12 and then flows out from the water outlet 112.

In the filter element assembly 10 provided by the above scheme, the ultrafiltration membrane assembly 12 and the activated carbon assembly 13 are integrated in the filter flask 11, and water entering from the water inlet 111 passes through the water inlet passage 131, the activated carbon assembly 13 and the ultrafiltration membrane assembly 12 in sequence and then is discharged from the water outlet 112. The whole size is reduced while the requirement of water quality safety is met. Specifically, activated carbon assembly 13 can filter silt, rust, the suspended particles thing of aquatic, can adsorb residual chlorine and peculiar smell etc. of getting rid of aquatic simultaneously. And the ultrafiltration membrane component 12 can further intercept and filter colloids, breeding bacteria and the like. After a period of use, the ultrafiltration membrane module 12 and the activated carbon module 13 detachably arranged in the filter flask 11 can be taken out, and then the ultrafiltration membrane module 12 outside the activated carbon module 13 is cleaned and reused, so that the service life is prolonged. And the ultrafiltration membrane component 12 which needs to be cleaned is sleeved outside the activated carbon component 13, so that the cleaning process is simpler and more convenient, and the cleaning efficiency is improved.

When the ultrafiltration membrane module 12 needs to be cleaned, the composite filter element formed by combining the ultrafiltration membrane module 12 and the activated carbon module 13 is directly taken out, and then a cleaning process is carried out. Therefore, the relative position between the ultrafiltration membrane component 12 and the activated carbon component 13 is ensured to be moderate and unchanged, and the taking out and mounting process of the composite filter element is simpler and more convenient. And the ultrafiltration membrane module 12 is arranged on the outer side, so that the cleaning process is more convenient. Particularly, when the water inlet sealing ring 16, the inner sealing ring 17 and the outer sealing ring 18 are arranged in the filter element assembly 10, the relative position of the ultrafiltration membrane assembly 12 and the activated carbon assembly 13 is fixed, so that the arrangement of the inner sealing ring 17 is more reliable.

Specifically, as shown in fig. 1, in one embodiment, the activated carbon assembly 13 includes inner PP wool 132, an intermediate filter layer 133, and outer PP wool 134. The middle filter layer 133 is formed by melt-blowing a carbon rod and PP cotton, the inner PP cotton 132 surrounds the water inlet passage 131, the middle filter layer 133 is sleeved outside the inner PP cotton 132, and the outer PP cotton 134 is sleeved outside the middle filter layer 133.

The water entering the water inlet passage 131 is filtered by the inner layer PP cotton 132, the middle filter layer 133 and the outer layer PP cotton 134 in sequence and then enters the ultrafiltration membrane module 12 for filtration. Based on the intermediate filtering layer 133 formed by melt-blowing the carbon rod and the PP cotton, a better filtering effect can be achieved by combining the inner PP cotton 132 and the outer PP cotton 134, and a certain amount of bacteria, viruses and the like can be intercepted. Specifically, the carbon rod in the middle filter layer 133 can remove residual chlorine, abnormal color, odor and small molecular organic matters in water, thereby removing color and odor and improving taste. And the middle filter layer 133 formed after the carbon rod and the PP cotton are melt-blown can also intercept particles such as sand, iron rust and the like, and can further improve the capability of the active carbon component 13 for intercepting the particles, thereby prolonging the service life of the active carbon component 13.

Further, in one embodiment, the pore size of the inner layer PP wool 132 filter is larger than the pore size of the outer layer PP wool 134 filter. The inner PP wool 132 thus intercepts the larger particles in the water inlet passage 131, while the relatively smaller particles are further filtered by the inner PP wool 132. The filtering performance of each layer of the PP cotton 132 of the inner layer, the middle filtering layer 133 and the PP cotton 134 of the outer layer in the activated carbon component 13 is fully utilized. The filtering burden is distributed to each filtering layer, so that the service life of the activated carbon component 13 is prolonged.

Specifically, in one embodiment, the inner layer PP cotton 132 has a filtering pore size of 10um to 15um, and the outer layer PP cotton 134 has a filtering pore size of 1um to 5 um. Impurities with diameters exceeding the filtered pore diameter of the inner layer PP cotton 132 are firstly intercepted in the water inlet passage 131, and impurities which pass through the inner layer PP cotton 132 and have diameters not less than 1 um-5 um are filtered by the outer layer PP cotton 134. The intermediate filter layer 133 has an effect of absorbing the offensive odor in addition to the effect of filtering the foreign substances.

More specifically, in one embodiment, as shown in fig. 1, the ultrafiltration membrane module 12 includes an inner shell 121, an ultrafiltration membrane 122, and an outer shell 123, wherein the inner shell 121 is sleeved outside the activated carbon module 13, the outer shell 123 is sleeved outside the inner shell 121, the outer shell 123 is spaced from the inner shell 121, and the ultrafiltration membrane 122 is located between the inner shell 121 and the outer shell 123.

The water filtered by the activated carbon module 13 enters between the inner shell 121 and the outer shell 123, under the action of water pressure, impurities are further intercepted outside the ultrafiltration membrane 122, and the filtered pure water enters the ultrafiltration membrane 122 and flows out from the water producing port of the ultrafiltration membrane module 12, and finally flows out from the water outlet 112 of the filter bottle 11.

Further, in one embodiment, as shown in fig. 1, the water inlet 111 and the water outlet 112 are both disposed on a top wall of the filter flask 11, and the water producing end of the ultrafiltration membrane module 12 is spaced from the top wall to form a water outlet passage 113 that communicates the water outlet 112 with the water producing port of the ultrafiltration membrane module 12.

Purified water obtained by filtration through the ultrafiltration membrane module 12 enters the water outlet passage 113 and is discharged from the water outlet 112.

Furthermore, as shown in fig. 1, an end of the inner casing 121 away from the water outlet passage 113 is spaced apart from the filter bottle 11, and the outer casing 123 is provided with a vent hole 1231.

The space between the inner shell 121 and the filter bottle 11 enables water obtained by filtering by the activated carbon assembly 13 to enter between the inner shell 121 and the outer shell 123 and be filtered by the ultrafiltration membrane 122. The vent 1231 formed in the outer shell 123 prevents the ultrafiltration membrane module 12 from being suffocated.

Specifically, as shown in fig. 1, in one embodiment, the water inlet 111 is located at the middle of the top wall, and the water outlet 112 is located at the outer edge of the top wall.

The water inlet 111 provided in the middle of the top wall can be easily communicated with the water inlet passage 131 in the activated carbon module 13. And the water outlet 112 provided at the outer peripheral portion makes the purified water in the water outlet passage 113 easily discharged.

Further, in one embodiment, as shown in fig. 1, a water inlet end cap 14 is disposed on an end of the activated carbon assembly 13 close to the water inlet 111, and a sealing end cap 15 is disposed on an end of the activated carbon assembly 13 far from the water inlet 111. The end cover 15 seals the end of the water inlet passage 131 far away from the water inlet 111, a through hole 141 is formed in the bottom wall of the water inlet end cover 14, and the side wall of the through hole 141 extends into the water inlet 111. The external water enters the water inlet passage 131 through the through hole 141.

Further, as shown in fig. 1, a water inlet sealing ring 16 is disposed between a wall forming the through hole 141 and a side wall of the water inlet 111, so as to ensure that water in the water inlet 111 can only enter the water inlet passage 131 through the through hole 141. An inner sealing ring 17 is arranged between the inner shell 121 and the side wall of the water inlet end cover 14, and an outer sealing ring 18 is arranged between the outer shell 123 and the filter bottle 11.

The water inlet end cap 14, the inner sealing ring 17 and the outer sealing ring 18 are arranged so that water in the water outlet passage 113 can only flow out of the water outlet 112. The smooth proceeding of the whole water purification process is ensured.

When the ultrafiltration membrane module 12 and the activated carbon module 13 are taken out of the filter flask 11, the water inlet sealing ring 16 and the outer sealing ring 18 fall off from the filter flask 11. When the filter element is installed after cleaning, the water inlet sealing ring 16 is installed on the water inlet end cover 14, the outer sealing ring 18 is installed on the outer shell 123, and then the composite filter element provided with the sealing rings is pressed into the filter bottle 11.

Further, as shown in fig. 1, in an embodiment, the water inlet 111 and the water outlet 112 are both disposed on the top wall of the filter bottle 11, the bottom wall of the filter bottle 11 is a filter bottle cap disposed on the side wall of the filter bottle 11, the filter bottle cap is hinged to the side wall of the filter bottle 11 at a first position, the filter bottle cap is clamped to the side wall of the filter bottle 11 at a second position, and when the filter bottle cap is clamped to the side wall of the filter bottle 11, the filter bottle cap is pressed against the sealing end cap 15.

Based on ultrafiltration membrane subassembly 12 with the combined filter core that active carbon component 13 formed need take out the back and wash, and in order to ensure combined filter core packs into the leakproofness in back each water route again, will the filter flask lid sets up to above form to through pressing back with filter flask lid buckle on filter flask 11 lateral wall, the filter flask lid can pass through end cover 15 will active carbon component 13 is to being close to the direction extrusion of filter flask 11 roof makes advance water sealing circle 16, interior sealing washer 17 and outer sealing washer 18 can install in place, ensures the leakproofness in each water route, makes the water purification process normally go on.

More specifically, in one embodiment, the ultrafiltration membrane 122 comprises a polyvinylidene fluoride filtration membrane, a polysulfone filtration membrane, or a polyethersulfone filtration membrane. That is, the ultrafiltration membrane 122 may be made of polyvinylidene fluoride, polysulfone, or polyethersulfone material.

Further, in another embodiment, an ultrafiltration water purifier is provided, comprising the above-mentioned filter cartridge assembly 10.

The above-described aspect provides an ultrafiltration water purifier, which has a reduced overall size and a prolonged service life by using the filter element assembly 10 described in any of the above-described embodiments. Specifically, the ultrafiltration membrane module 12 and the activated carbon module 13 are integrated in the filter flask 11, and when the ultrafiltration water purifier is used, water entering the ultrafiltration water purifier is filtered by the activated carbon module 13 and the ultrafiltration membrane module 12 in sequence. Activated carbon assembly 13 can filter silt, rust, the suspended particles thing of aquatic, can adsorb residual chlorine and peculiar smell etc. of getting rid of the aquatic simultaneously. And the ultrafiltration membrane component 12 can further intercept and filter colloids, breeding bacteria and the like. Thereby ensuring that the water quality meets the sanitary and safe requirements and the whole size is smaller. After the ultrafiltration membrane component 12 is used for a period of time, the ultrafiltration membrane component can be detached for cleaning and then reused, so that the service life of the ultrafiltration water purifier is effectively prolonged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a filter element subassembly, its characterized in that includes the filter flask to and detachably sets up milipore filter subassembly and active carbon assembly in the filter flask, milipore filter subassembly is the loop configuration, active carbon assembly inserts and establishes among the milipore filter subassembly, be equipped with water inlet and delivery port on the filter flask, active carbon assembly's the route of intaking with the water inlet intercommunication of filter flask, milipore filter subassembly produce the water mouth with the delivery port intercommunication of filter flask follows the water that the filter flask water inlet got into passes through in proper order the active carbon assembly with follow after the milipore filter subassembly filters the delivery port flows.

2. The filter element assembly of claim 1, wherein the activated carbon assembly comprises inner PP cotton, an intermediate filter layer and outer PP cotton, the intermediate filter layer is formed by melt-blowing the carbon rod and the PP cotton, the inner PP cotton surrounds the water inlet passage, the intermediate filter layer is sleeved outside the inner PP cotton, and the outer PP cotton is sleeved outside the intermediate filter layer.

3. The filter element assembly of claim 2, wherein the inner PP wool filter has a pore size larger than the pore size of the outer PP wool filter.

4. The filter element assembly of claim 3, wherein the inner PP cotton filter has a pore size of 10-15 um and the outer PP cotton filter has a pore size of 1-5 um.

5. The filter element assembly according to any one of claims 1 to 4, wherein the ultrafiltration membrane assembly comprises an inner shell, an ultrafiltration membrane and an outer shell, the inner shell is sleeved outside the activated carbon assembly, the outer shell is sleeved outside the inner shell, the outer shell and the inner shell are arranged at intervals, and the ultrafiltration membrane is positioned between the inner shell and the outer shell.

6. The filter element assembly according to claim 5, wherein the water inlet and the water outlet are both disposed on a top wall of the filter flask, a water production end of the ultrafiltration membrane assembly is spaced from the top wall to form a water outlet passage for communicating the water outlet with the water production end of the ultrafiltration membrane assembly, an end of the inner shell, which is far away from the water outlet passage, is spaced from the filter flask, and the outer shell is provided with an exhaust hole.

7. The filter element assembly according to claim 6, wherein said water inlet is located in a middle portion of said top wall and said water outlet is located at an outer peripheral portion of said top wall.

8. The filter element assembly of claim 5, wherein a water inlet end cap is disposed at an end of the activated carbon assembly close to the water inlet, a sealing end cap is disposed at an end of the activated carbon assembly far away from the water inlet, the sealing end cap seals an end of the water inlet passage far away from the water inlet, a through hole is disposed on a bottom wall of the water inlet end cap, a side wall of the through hole extends into the water inlet, a water inlet sealing ring is disposed between a wall forming the through hole and the side wall of the water inlet, an inner sealing ring is disposed between the inner casing and the side wall of the water inlet end cap, and an outer sealing ring is disposed between the outer casing and the filter bottle.

9. The filter element assembly of claim 8, wherein the water inlet and the water outlet are both disposed on the top wall of the filter flask, the bottom wall of the filter flask is a filter flask cap disposed on the side wall of the filter flask, the filter flask cap is hinged to the side wall of the filter flask at a first position, the filter flask cap is clamped to the side wall of the filter flask at a second position, and when the filter flask cap is clamped to the side wall of the filter flask, the filter flask cap is pressed against the sealing end cap.

10. The filter element assembly according to any one of claims 1 to 4, wherein the ultrafiltration membrane comprises a polyvinylidene fluoride filter membrane, a polysulfone filter membrane or a polyethersulfone filter membrane.

11. An ultrafiltration water purifier, characterized by comprising the filter element assembly of any one of claims 1 to 10.