CN113476924B

CN113476924B - Composite filter element and water purification equipment

Info

Publication number: CN113476924B
Application number: CN202110650321.6A
Authority: CN
Inventors: 郑跃东; 孙天厚
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2017-04-06
Filing date: 2017-04-06
Publication date: 2023-04-07
Anticipated expiration: 2037-04-06
Also published as: CN107899281A; CN107899281B; CN113476924A; WO2018184544A1

Abstract

The invention discloses a composite filter element and water purification equipment, wherein the composite filter element comprises: a filter cavity is arranged in the shell; the isolation assembly is arranged in the filtering cavity and divides the filtering cavity into a first filtering cavity and a second filtering cavity which are mutually independent; the shell is provided with a first water inlet and a first water outlet which are communicated with the first filtering cavity, and a second water inlet and a second water outlet which are communicated with the second filtering cavity; the first filter element is arranged in the first filter cavity and is positioned between the first water inlet and the first water outlet; and the second filter element is arranged in the second filter cavity and is positioned between the second water inlet and the second water outlet. According to the technical scheme, the composite filter element is provided with two independent filtering channels, so that two kinds of water quality are respectively filtered, and the filtering requirements of users on various water qualities are met.

Description

Composite filter element and water purification equipment

The application is a divisional application with the application date of 2017, 04 and 06, the application number of 201710227876.3 and the name of the invention of a composite filter element and water purification equipment.

Technical Field

The invention relates to the field of water purification equipment, in particular to a composite filter element and water purification equipment.

Background

Present composite filter core is realized through setting up multiple filtering material, and these composite filter core only have a set of water inlet generally, if the quality of water that needs many water routes filters respectively, then need install a plurality of composite filter core, cause a great deal of inconvenience, and single composite filter core can't satisfy the filtration demand of user to multiple quality of water again.

Disclosure of Invention

The invention mainly aims to provide a composite filter element, and aims to enable the composite filter element to be provided with two mutually independent filtering channels so as to meet the filtering requirements of users on various water qualities.

In order to achieve the above object, the present invention provides a water purifying apparatus with a composite filter element, the water purifying filter element comprising:

a housing, in which a filter chamber is arranged;

the isolation assembly is arranged in the filtering cavity and divides the filtering cavity into a first filtering cavity and a second filtering cavity which are mutually independent; the shell is provided with a first water inlet and a first water outlet which are communicated with the first filter cavity, and a second water inlet and a second water outlet which are communicated with the second filter cavity;

the first filter element is arranged in the first filter cavity and is positioned between the first water inlet and the first water outlet; and

and the second filter element is arranged in the second filter cavity and is positioned between the second water inlet and the second water outlet.

Preferably, the housing comprises:

the upper end of the outer barrel is an open end, and the inner barrel is arranged in the outer barrel;

and the filter element joint is sealed and closed at the upper end of the outer barrel, and the first water inlet, the first water outlet, the second water inlet and the second water outlet are arranged on the filter element joint.

Preferably, the isolation assembly includes an inner barrel disposed in the casing, and an outer wall surface of the inner barrel and an inner wall surface of the casing are disposed at an interval to form the first filtering cavity in the inner barrel and the second filtering cavity outside the inner barrel.

Preferably, the lower end of the inner barrel is an open end and is connected with the bottom wall of the shell in a sealing manner so as to form a ring and the second filter cavity is arranged at the periphery of the first filter cavity.

Preferably, the lower end of the inner barrel is an open end and is arranged at an interval with the bottom wall of the shell;

the isolating assembly further comprises a separating disc detachably fixed at the lower end of the inner barrel in a sealing mode, and the second filter element is arranged below the separating disc.

Preferably, the first filter element is arranged in a cylindrical shape, an upper end cover is arranged between the upper end of the first filter element and the top wall of the inner barrel, and two ends of the first filter element are respectively and correspondingly attached to the separation disc and the upper end cover in a sealing manner;

an inner barrel joint communicated with the first water inlet is arranged on the top wall of the inner barrel, a water passing channel is arranged between the upper end cover and the top wall of the inner barrel, and the outside of the first filter element is communicated with the inner barrel joint through the water passing channel;

the upper end cover is provided with an upper cover joint, the upper cover joint penetrates through the inner barrel joint, the diameter of the upper cover joint is smaller than that of the inner barrel joint, and the inner space of the first filter element is communicated with the first water outlet through the upper cover joint.

Preferably, the second filter element is arranged in a cylindrical shape, and two ends of the second filter element are respectively and correspondingly attached to the bottom wall of the shell and the separating disc in a sealing manner;

a first flow channel communicated with the second water inlet is formed between the side wall of the shell and the side wall of the inner barrel, an overflowing port is arranged on the separating disc, and the external space of the second filter element is communicated with the first flow channel through the overflowing port;

the second water outlet is communicated with the inner space of the second filter cavity through a water guide pipe.

Preferably, the water guide pipe penetrates through the separation disc in a sealing manner along the up-and-down direction.

Preferably, a lower end cover is arranged between the lower end of the second filter element and the bottom wall of the shell, and the lower end of the second filter element is in sealing fit with the upper side face of the lower end cover.

The invention also provides a water purification device, which comprises a composite filter element, wherein the composite filter element comprises:

a filter cavity is arranged in the shell;

According to the technical scheme, the separation assembly is arranged in the shell, so that the first filter cavity and the second filter cavity which are mutually independent are formed in the filter cavity, the shell is provided with the first water inlet and the first water outlet which are communicated with the first filter cavity, and the second water inlet and the second water outlet which are communicated with the second filter cavity, and therefore the composite filter element is provided with two independent filter channels, the two kinds of water can be respectively filtered, and the filtering requirements of users on various kinds of water can be met; simultaneously, because this composite filter element is integrated to have set up a plurality of filtration passageways, reduced composite filter element's in the water purification unit use number, on the one hand, simplified the inside water route connection of water purification unit, on the other hand has also reduced water purification unit inner space, has reduced water purification unit's volume to adapt to water purification unit's light small-size development trend.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a preferred embodiment of the composite filter element of the present invention;

FIG. 2 is a schematic diagram of the filtration of the composite filter element of FIG. 1;

FIG. 3 is a cross-sectional view of the composite filter cartridge of FIG. 1;

FIG. 4 is a schematic view of the structure of the separation tray of FIG. 1;

fig. 5 is a schematic illustration of the positioning of a first filter chamber and a second filter chamber in another embodiment of a composite filter cartridge according to the present disclosure.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				1	Composite filter element	130	Lower end cap
10	Shell body	140	Water guide pipe
				10a	First filter chamber	20	Isolation assembly
10b	Second filter chamber	210	Inner barrel
				101	First flow channel	211	Inner barrel joint
110	Filter element joint	220	Upper end cap
				111	First water inlet	221	Upper cover joint
112	The first water outlet	230	Separating disc
				113	Second water inlet	231	Supporting projection
114	Second water outlet	30	First filter element
				120	Outer barrel	40	The second filterCore

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a composite filter element which is suitable for water purification equipment and aims to overcome the defect that the conventional composite filter element only has a single filtering channel and cannot meet the filtering requirements of users on various water qualities.

In an embodiment of the present invention, referring to fig. 1 to 3, the composite filter element 1 includes:

a shell 10, in which a filter cavity is arranged;

the isolation assembly 20 is arranged in the filter cavity and divides the filter cavity into a first filter cavity 10a and a second filter cavity 10b which are mutually independent; the shell 10 is provided with a first water inlet 111 and a first water outlet 112 communicated with the first filter chamber 10a, and a second water inlet 113 and a second water outlet 114 communicated with the second filter chamber 10b;

the first filter element 30 is arranged in the first filter cavity 10a and is positioned between the first water inlet 111 and the first water outlet 112; and

and a second filter element 40 disposed in the second filter chamber 10b and located between the second water inlet 113 and the second water outlet 114.

Specifically, the purpose of the isolation assembly 20 is to divide the filter chamber into a first filter chamber 10a and a second filter chamber 10b which are relatively independent, wherein the first filter chamber 10a and the second filter chamber 10b respectively have an independent water inlet channel and an independent water outlet channel, and do not interfere with each other. The housing 10 is provided with a first water inlet 111 communicated with the water inlet waterway of the first filtering chamber 10a, a first water outlet 112 communicated with the water outlet waterway of the first filtering chamber 10a, a second water inlet 113 communicated with the water inlet waterway of the second filtering chamber 10b, and a second water outlet 114 communicated with the water outlet waterway of the second filtering chamber 10b, wherein the positions of the first water inlet 111, the first water outlet 112, the second water inlet 113 and the second water outlet 114 on the housing 10 can be determined according to the internal structures of the first filtering chamber 10a and the second filtering chamber 10b, and can be respectively set at any position on the housing 10. Of course, the first water inlet 111, the first water outlet 112, the second water inlet 113 and the second water outlet 114 are preferably centrally disposed at one end of the housing 10, so as to facilitate water path connection and avoid complicated water path connection pipelines in the water purifying apparatus.

The first filter element 30 is disposed in the first filter chamber 10a, two sides of the first filter element 30 respectively correspond to the first water inlet 111 and the first water outlet 112 to form a water inlet waterway and a water outlet waterway of the first filter chamber 10a, raw water passes through the water inlet waterway from the first water inlet 111 and then is filtered and purified by the first filter element 30, and finally, purified water flows out of the first water outlet 112 through the water outlet waterway. The core material adopted by the first filter element 30 is generally one or more of carbon rod, PP cotton or carbon fiber composite material, and it can be understood that, in some embodiments, in order to enhance the filtering effect of the first filter element 30, the first filter element 30 may also be formed by mutually stacking multiple layers of core materials, so as to further enable the filtering and purifying degree of the raw water.

The second filter element 40 is disposed in the second filter chamber 10b, two sides of the second filter element 40 respectively correspond to the second water inlet 113 and the second water outlet 114 to form a water inlet waterway and a water outlet waterway of the second filter chamber 10b, the raw water is filtered and purified by the second filter element 40 after passing through the water inlet waterway from the second water inlet 113, and finally, the purified water flows out from the second water outlet 114 through the water outlet waterway. The core material adopted by the second filter element 40 is generally one or more of carbon rod, PP cotton or carbon fiber composite material, and it can be understood that, in some embodiments, in order to enhance the filtering effect of the second filter element 40, the second filter element 40 may also be formed by mutually stacking multiple layers of core materials, so as to further enable the filtering and purifying degree of the raw water.

According to the technical scheme, the separation assembly is arranged in the shell 10, so that a first filter chamber 10a and a second filter chamber 10b which are mutually independent are formed in the filter chambers, and the shell 10 is provided with a first water inlet 111 and a first water outlet 112 which are communicated with the first filter chamber 10a, and a second water inlet 113 and a second water outlet 114 which are communicated with the second filter chamber 10b, so that the composite filter element 1 is provided with two independent filter channels, the two water qualities are respectively filtered, and the filtering requirements of users on the multiple water qualities are met; simultaneously, because this combined filter element 1 is integrated to have set up a plurality of filtration passageways, reduced combined filter element 1's in the water purification unit use number, on the one hand, simplified the inside water route connection of water purification unit, on the other hand has also reduced water purification unit inner space, has reduced water purification unit's volume to adapt to water purification unit's small and light development trend.

Further, the above-mentioned isolation assembly 20 includes an inner barrel 210 disposed in the casing 10, wherein an outer wall surface of the inner barrel 210 is spaced apart from an inner wall surface of the casing 10 to form a first filtering chamber 10a in the inner barrel 210, and a second filtering chamber 10b is formed outside the inner barrel 210. It can be understood that the first filter element 30 is disposed inside the inner tub 210, and the second filter element 40 is disposed outside the inner tub 210. The first filter chamber 10a and the second filter chamber 10b have various structures, and the structure of the composite filter element 1 of the present invention will be specifically explained below.

In this embodiment, the casing 10 includes an outer tub 120 and a filter element joint 110, the upper end of the outer tub 120 is open, the inner tub 210 is disposed in the outer tub 120, and the filter element joint 110 is hermetically covered on the upper end of the outer tub 120, wherein the filter element joint 110 can be connected with the upper end of the outer tub 120 by sealing, inserting, welding or the like, that is, the filter element joint 110 can be detachably connected to the upper end of the outer tub 120, or fixedly connected to the upper end of the outer tub 120. In the embodiment, the upper end of the inner barrel 210 is also connected to the filter element joint 110, and the upper end of the inner barrel 210 is provided with an opening to form a water passage, so as to communicate the first filter chamber 10a with the first water inlet 111 and the first water outlet 112, respectively.

By the foregoing, when first water inlet 111, first delivery port 112, second water inlet 113 and second delivery port 114 all were equipped with the one end of casing 10, the effect of the waterway connection of being convenient for has, in this embodiment, first water inlet 111, first delivery port 112, second water inlet 113 and second delivery port 114 all locate on the filter core connects 110, so, be convenient for connect the water route of composite filter element 1, the distance in connection water route has been shortened, avoid connecting the setting that the water route packing was complicatedly complicated and the very big inconvenience that brings in water purification unit.

In an embodiment, referring to fig. 5, the lower end of the inner tub 210 is open, the lower end of the inner tub 210 is hermetically connected to the bottom wall of the outer tub 120, the first filter chamber 10a is located inside the inner tub 210, and the second filter chamber 10b is located outside the inner tub 210, thereby forming the second filter chamber 10b around the first filter chamber 10 a. It should be noted that, in the present embodiment, the lower end of the inner barrel 210 may also be a sealed end, and at this time, the lower end of the inner barrel 210 may be fixedly connected with the bottom wall of the outer barrel 120, so that the second filter cavity 10b is annularly formed at the periphery of the first filter cavity 10 a. In this embodiment, the second filter chamber 10b is annularly arranged around the first filter chamber 10a, so that the inner structure of the outer tub 120 is more compact, and the structural complexity of the composite filter element 1 itself is reduced.

In a preferred embodiment of the present invention, referring to fig. 1 to 3, the lower end of the inner barrel 210 is an open end and is spaced from the bottom wall of the outer barrel 120; the separator assembly 20 further includes a separation disc 230 detachably and hermetically fixed to a lower end of the inner tub 210, and the second filter cartridge 40 is disposed under the separation disc 230. Wherein, the height of the outer barrel 120 along the up-down direction is greater than the height of the inner barrel 210, when the upper end of the inner barrel 210 is connected with the upper end of the outer barrel 120, the bottom wall of the outer barrel 120 and the lower end of the inner barrel 210 have a certain distance, i.e. are arranged at intervals. The purpose of the divider disk 230 is to: 1. the lower end of the inner barrel 210 is sealed to prevent water outside the inner barrel 210 from permeating into the inner barrel 210, and prevent water in the first filtering cavity 10a and the second filtering cavity 10b from mutually leaking; secondly, play the supporting role to inner bucket 210, prevent that inner bucket 210 from tenesmus to the inner structure of firm composite filter element 1.

Further, in this embodiment, the first filter element 30 is disposed in a cylindrical shape, the upper end cap 220 is disposed between the upper end of the first filter element 30 and the top wall of the inner barrel 210, and two ends of the first filter element 30 are respectively and correspondingly attached to the separation disc 230 and the upper end cap 220 in a sealing manner, so that a water inlet path and a water outlet path of the first filter cavity 10a are formed inside and outside the first filter element 30. The first filter element 30 may have an outlet water path inside and an inlet water path outside, or vice versa. When the two ends of the first filter element 30 are connected with the upper end cover 220 and the separating disc 230 in a sealing manner, the end surface of the first filter element 30 is respectively attached to the lower cover surface of the upper end cover 220 and the upper disc surface of the separating disc 230, so that surface-to-surface attachment sealing is formed. In order to enhance the sealing effect, a sealant or a sealing coating may be disposed on the corresponding joint surface, and a sealant or a sealing coating may be disposed at a joint between the first filter element 30 and the upper end cap 220 or the separating tray 230, so as to further enhance the sealing effect and prevent raw water from leaking from the joint gap and directly flowing out without being filtered.

In order to realize the connection of the first filter chamber 10a with the first water inlet 111 and the first water outlet 112, an inner tub joint 211 communicated with the first water inlet 111 is provided at the upper end of the inner tub 210, a water passage is provided between the upper end cap 220 and the top end of the inner tub 210, and the outer space of the first filter element 30 is communicated with the inner tub joint 211 through the water passage; the upper cover joint 221 is disposed at a position of the upper cover 220 corresponding to the inner tub joint 211, the upper cover joint 221 is inserted into the inner tub joint 211, and the diameter of the upper cover joint 221 is smaller than that of the inner tub joint 211, and the upper cover joint 221 communicates the inner space of the first filter element 30 with the first water outlet 112. Therefore, a water inlet waterway is formed outside the first filter element 30, a water outlet waterway is formed inside the first filter element 30, raw water enters the first filter chamber 10a from the first water inlet 111, is filtered and permeated into the first filter chamber 30 from the outside of the first filter element 30, and then flows out of the first water outlet 112 to purify water, so that the filtering and purifying functions of the first filter chamber 10a on the raw water are realized.

Further, in this embodiment, the second filter element 40 is disposed in a cylindrical shape, and two ends of the second filter element 40 are respectively and correspondingly attached to the bottom wall of the outer tub 120 and the lower end cap 130 in a sealing manner; a first flow channel 101 communicated with the second water inlet 113 is formed between the inner wall of the outer tub 120 and the outer wall of the inner tub 210, and an overflow port is formed on the separation disc 230 to communicate the outer space of the second filter element 40 with the first flow channel 101; the second water outlet 114 communicates with the inner space of the second filter chamber 10b through the water introduction pipe 140. Through the above structure, the second filter chamber 10b is communicated with the second water inlet 113 and the second water outlet 114 which are located in the filter element joint 110, so that the raw water enters the external space of the second filter element 40 through the second water inlet 113 via the first flow channel 101, and then flows to the filter element joint 110 through the water guide pipe 140 after passing through the osmotic filtration of the second filter element 40, and purified water flows out from the second water outlet 114 of the filter element joint 110, thereby realizing the filtering and purifying functions of the second filter chamber 10b on the raw water. There are various ways to realize the flow-through opening located on the separating tray 230, for example, a through hole may be directly opened on the plate surface of the separating tray 230 to form the flow-through opening, or a plurality of supporting protrusions 231 may be provided on the outer circumferential surface of the separating tray 230, referring to fig. 4, adjacent supporting protrusions 231 are provided at intervals, and when the separating tray 230 is fixed in the outer tub 120, a flow-through opening for water to pass through is formed between adjacent supporting protrusions 231 and between the separating tray 230 and the inner wall surface of the outer tub 120. It can be understood that, by providing the supporting protrusions 231, the separating tray 230 can also be fixed in the outer tub 120, and in order to fix the separating tray 230 and the outer tub 120 more stably, the supporting protrusions 231 are uniformly arranged along the circumferential direction of the separating tray 230, so that the force applied to the separating tray 230 is more uniform, and the product structure is more stable.

Since the outlet water in the second filter element 40 needs to pass through the water conduit 140 to the second outlet 114, in order to make the overall structure of the composite filter element 1 more compact, the water conduit 140 preferably passes through the inner tub 210 in the vertical direction, and at this time, the water conduit 140 passes through the separation disc 230 in a sealed manner.

Further, in this embodiment, the lower end cover 130 is disposed between the lower end of the second filter element 40 and the bottom wall of the outer tub 120, and two ends of the second filter element 40 are respectively and correspondingly attached to the separating disc 230 and the lower end cover 130 in a sealing manner, so that the lower end of the second filter element 40 is prevented from being directly attached to the bottom of the outer tub 120, the precision requirement on the bottom wall of the outer tub 120 is reduced, the manufacturing difficulty of the outer tub 120 is reduced, and the production cost is reduced.

The invention further provides a water purification device, which comprises the composite filter element, the specific structure of the composite filter element refers to the above embodiments, and the water purification device adopts all the technical schemes of all the above embodiments, so that the water purification device at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a composite filter element for water purification unit, its characterized in that includes:

an outer tub having an upper end opened;

the inner barrel is arranged in the outer barrel, a first filtering cavity is formed in the inner barrel, and a second filtering cavity is formed between the outer barrel and the inner barrel;

the first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity;

the filter element joint is provided with a first water inlet and a first water outlet which are communicated with the first filter cavity, and a second water inlet and a second water outlet which are communicated with the second filter cavity, the filter element joint is arranged at the upper end of the outer barrel, and a first-stage seal is formed at the joint of the filter element joint and the outer barrel;

the water guide pipe is connected with the second water outlet to form a second-stage seal and is also communicated with the inner space of the second filter element;

the upper end of the inner barrel is provided with an inner barrel joint connected with the first water inlet and forms a third-stage seal; an upper end cover is arranged between the upper end of the first filter element and the top wall of the inner barrel, an upper cover joint is arranged at the position of the upper end cover corresponding to the inner barrel joint, the upper cover joint is communicated with the inner space of the first filter element and the first water outlet, and the upper cover joint and the first water outlet form fourth-stage sealing;

the first filter element is positioned between the first water inlet and the first water outlet, a first water inlet channel communicated with the first water inlet is arranged between the outer side of the first filter element and the inner barrel, and a first water outlet channel communicated with the first water outlet is arranged between the inner side of the first filter element and the water guide pipe; and

a second filter element is positioned between the second water inlet and the second water outlet, a first flow channel communicated with the second water inlet is formed between the inner wall of the outer barrel and the outer wall of the inner barrel, and water entering from the second water inlet flows to the second filter element through the first flow channel;

wherein the first water inlet channel and the first water outlet channel are positioned between the water conduit and the first flow channel;

the lower end of the inner barrel is an open end and is arranged at an interval with the bottom wall of the shell;

further comprising: the separating disc is detachably fixed at the lower end of the inner barrel in a sealing way; the outer peripheral surface of the separation disc is provided with a plurality of supporting bulges, the adjacent supporting bulges are arranged at intervals, and a water channel allowing water to pass through is arranged between the adjacent supporting bulges.

2. The composite filter element of claim 1, wherein the upper cap end is disposed through the inner barrel end, and the diameter of the upper cap end is smaller than the diameter of the inner barrel end.

3. A water purification apparatus, comprising a composite cartridge according to any one of claims 1-2.