CN113476924B - Composite filter element and water purification equipment - Google Patents

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

This application is a divisional application with an application date of April 06, 2017, an application number of 201710227876.3, and an invention title of "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 technique

The current composite filter element is realized by setting a variety of filter materials. Generally, these composite filter elements only have one set of water inlets. The composite filter element cannot meet the user's filtering needs for various water qualities.

Contents of the invention

The main purpose of the present invention is to propose a composite filter element, which aims to provide the composite filter element with two mutually independent filtering channels, so as to meet users' requirements for filtering various water qualities.

In order to achieve the above object, the composite filter element water purification equipment proposed by the present invention, the water purification filter element comprises:

The housing is provided with a filter cavity;

The isolation assembly is arranged in the filter cavity and separates the filter cavity into a first filter cavity and a second filter cavity which are independent of each other; the housing is provided with a first inlet communicating with the first filter cavity a water inlet and a first water outlet, and a second water inlet and a second water outlet connected to the second filter cavity;

a first filter element, set in the first filter cavity, and located between the first water inlet and the first water outlet; and

The second filter element is arranged in the second filter chamber and between the second water inlet and the second water outlet.

Preferably, the housing includes:

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

The filter element joint is sealed and closed on the upper end of the outer tub, and the filter element joint is provided with the first water inlet, the first water outlet, the second water inlet and the second water outlet.

Preferably, the isolation assembly includes an inner barrel arranged in the housing, and the outer wall of the inner barrel is spaced apart from the inner wall of the housing, so as to form the first filter chamber in the inner barrel, And the second filter cavity is formed outside the inner tub.

Preferably, the lower end of the inner barrel is an open end, and is sealingly connected with the bottom wall of the casing to form the second filter chamber ringed around the outer periphery of the first filter chamber.

Preferably, the lower end of the inner tub is an open end and is spaced apart from the bottom wall of the housing;

The isolation assembly also includes a partition plate detachably sealed and fixed on the lower end of the inner barrel, and the second filter element is arranged under the partition plate.

Preferably, the first filter element is arranged in a cylindrical shape, an upper end cover is provided between the upper end of the first filter element and the top wall of the inner tub, and the two ends of the first filter element correspond to the partition plate and the inner barrel respectively. The upper end cover is hermetically bonded;

The top wall of the inner bucket is provided with an inner bucket joint communicating with the first water inlet, there is a water passage between the upper end cover and the top wall of the inner bucket, and the outside of the first filter element passes through the water passage communicate with the inner barrel joint;

The upper end cover is provided with an upper cover joint, the upper cover joint is pierced through the inner barrel joint, and the diameter of the upper cover joint is smaller than the inner barrel joint, and the inner space of the first filter element passes through the upper cover The joint communicates with the first water outlet.

Preferably, the second filter element is arranged in a cylindrical shape, and the two ends of the second filter element are in sealing fit with the bottom wall of the housing and the partition plate respectively;

A first flow channel communicating with the second water inlet is formed between the side wall of the housing and the side wall of the inner bucket, and an overflow port is provided on the partition plate, and the outer space of the second filter element passes through The flow port communicates with the first flow channel;

The second water outlet communicates with the inner space of the second filter chamber through a water guide pipe.

Preferably, the water guide pipe seals through the partition plate in an up-down direction.

Preferably, a lower end cover is provided between the lower end of the second filter element and the bottom wall of the housing, and the lower end of the second filter element is sealingly attached to the upper side of the lower end cover.

The present invention also proposes a water purification device, including a composite filter element, and the composite filter element includes:

The housing is provided with a filter cavity;

The isolation assembly is arranged in the filter cavity and separates the filter cavity into a first filter cavity and a second filter cavity which are independent of each other; the housing is provided with a first inlet communicating with the first filter cavity a water inlet and a first water outlet, and a second water inlet and a second water outlet connected to the second filter cavity;

a first filter element, set in the first filter cavity, and located between the first water inlet and the first water outlet; and

The second filter element is arranged in the second filter chamber and between the second water inlet and the second water outlet.

In the technical solution of the present invention, a partition assembly is provided in the casing, so that the first filter cavity and the second filter cavity independent of each other are formed inside the filter cavity, and the first water inlet and the first outlet connected to the first filter cavity are provided on the casing. The water inlet, and the second water inlet and the second water outlet connected to the second filter cavity, so that the composite filter element can have two independent filter channels, which can filter two kinds of water respectively, and meet the needs of users for various water qualities. Filtration requirements; at the same time, since the composite filter element is integrated with multiple filter channels, the number of composite filter elements used in the water purification equipment is reduced. On the one hand, the water connection inside the water purification equipment is simplified. On the other hand, it also reduces The internal space of the water purification equipment reduces the volume of the water purification equipment to adapt to the development trend of light and small water purification equipment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the explosion schematic diagram of a preferred embodiment of composite filter element of the present invention;

Fig. 2 is the filtering schematic diagram of the composite filter element in Fig. 1;

Fig. 3 is a sectional view of the composite filter element in Fig. 1;

Fig. 4 is the structural schematic diagram of separating plate in Fig. 1;

Fig. 5 is a schematic diagram of the positions of the first filter cavity and the second filter cavity in another embodiment of the composite filter element of the present invention.

Explanation of reference numbers:

label name label name 1 Composite filter 130 Lower end cap 10 case 140 Aqueduct 10a first filter chamber 20 isolated components 10b Second filter chamber 210 Inner barrel 101 first runner 211 Inner Barrel Joint 110 Filter connector 220 Upper end cap 111 first water inlet 221 Cover connector 112 first outlet 230 Divider 113 Second water inlet 231 Support bump 114 Second outlet 30 first filter element 120 outer barrel 40 Second filter element

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention proposes a composite filter element, which is suitable for water purification equipment, so as to improve the defect that the existing composite filter element only has a single filtering channel and cannot meet users' requirements for filtering various water qualities.

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

The housing 10 is provided with a filter cavity;

The isolation assembly 20 is arranged in the filter cavity and separates the filter cavity into a first filter cavity 10a and a second filter cavity 10b which are independent of each other; the housing 10 is provided with a The first water inlet 111 and the first water outlet 112 connected, and the second water inlet 113 and the 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 located between the first water inlet 111 and the first water outlet 112; and

The second filter element 40 is disposed in the second filter cavity 10 b and 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 cavity into relatively independent first filter cavity 10a and second filter cavity 10b, wherein the first filter cavity 10a and the second filter cavity 10b have independent water inlet channels respectively and the water outlet without interfering with each other. The housing 10 is provided with a first water inlet 111 communicating with the water inlet of the first filter chamber 10a, a first water outlet 112 communicating with the water outlet of the first filter chamber 10a, and a water inlet of the second filter chamber 10b. The second water inlet 113 connected with the waterway, and the second water outlet 114 connected with the water outlet of the second filter chamber 10b, wherein the first water inlet 111, the first water outlet 112, the second water inlet 113 and the second outlet The position of the water port 114 on the housing 10 can be determined according to the internal structure of the first filter chamber 10a and the second filter chamber 10b, and can be set at any position on the housing 10 respectively. 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 arranged at one end of the housing 10 so as to facilitate waterway connection and avoid waterway connection pipes in the water purification equipment. The road is too complicated.

The first filter element 30 is arranged in the first filter chamber 10a, and the two sides of the first filter element 30 respectively correspond to the first water inlet 111 and the first water outlet 112 to form the water inlet and outlet waterways of the first filter chamber 10a. The first water inlet 111 passes through the water inlet channel and then is filtered and purified by the first filter element 30 , and finally the purified water flows out from the first water outlet 112 through the water outlet channel. The core material used in the first filter element 30 is generally one or more of carbon rods, PP cotton or carbon fiber composite materials. It can be understood that, in some embodiments, in order to enhance the filtering effect of the first filter element 30, 30 can also be formed by stacking multiple layers of core materials, thereby improving the degree of filtration and purification of raw water.

The second filter element 40 is arranged in the second filter chamber 10b, and the two sides of the second filter element 40 respectively correspond to the second water inlet 113 and the second water outlet 114 to form the water inlet and outlet waterways of the second filter chamber 10b. After the second water inlet 113 passes through the water inlet channel, it is filtered and purified by the second filter element 40 , and finally the purified water flows out from the second water outlet 114 through the water outlet channel. The core material used in the second filter element 40 is generally one or more of carbon rods, PP cotton or carbon fiber composite materials. It can be understood that, in some embodiments, in order to strengthen the filtering effect of the second filter element 40, the second filter element 40 can also be formed by stacking multiple layers of core materials, so as to improve the degree of filtration and purification of raw water.

In the technical solution of the present invention, a partition assembly is provided in the housing 10, so that a first filter chamber 10a and a second filter chamber 10b that are independent of each other are formed inside the filter chamber, and the housing 10 is provided with a first filter chamber that communicates with the first filter chamber 10a. The water inlet 111 and the first water outlet 112, and the second water inlet 113 and the second water outlet 114 communicated with the second filter chamber 10b, so that the composite filter element 1 can have two independent filtering passages, realizing two kinds of The separate filtration of water quality meets the user's filtering needs for various water qualities; at the same time, since the composite filter element 1 is integrated with multiple filter channels, the number of composite filter elements 1 used in the water purification equipment is reduced. On the one hand, it simplifies the cleaning The water connection inside the water equipment, on the other hand, also reduces the internal space of the water purification equipment and reduces the volume of the water purification equipment to adapt to the development trend of light and small water purification equipment.

Further, the above-mentioned isolation assembly 20 includes an inner barrel 210 disposed in the housing 10, the outer wall of the inner barrel 210 is spaced apart from the inner wall of the housing 10, so as to form the first filter chamber 10a in the inner barrel 210, and the inner barrel 210 210 forms the second filter chamber 10b. It can be understood that, the above-mentioned first filter element 30 is set inside the inner barrel 210 , and the above-mentioned second filter element 40 is set outside the inner barrel 210 . Wherein, the forms and structures of the first filter cavity 10a and the second filter cavity 10b are various, and the structure of the composite filter element 1 in the present invention will be explained in detail below.

In this embodiment, the housing 10 includes an outer barrel 120 and a filter element joint 110, the upper end of the outer barrel 120 is open, the inner barrel 210 is arranged in the outer barrel 120, and the filter element joint 110 is sealed and closed on the upper end of the outer barrel 120, Wherein, the filter element joint 110 can be connected with the upper end of the outer barrel 120 through sealed plugging or welding, that is, the filter element joint 110 is detachably connected to the upper end of the outer barrel 120 , or fixedly connected to the upper end of the outer barrel 120 . Also, in this embodiment, the upper end of the inner barrel 210 is also connected to the filter joint 110, and the upper end of the inner barrel 210 is provided with an opening to form a water passage, and then the first filter chamber 10a is connected to the first water inlet 111 and the first outlet respectively. The water port 112 is connected.

As mentioned above, when the first water inlet 111, the first water outlet 112, the second water inlet 113 and the second water outlet 114 are all provided with one end of the housing 10, it has the effect of facilitating waterway connection. Among them, the first water inlet 111, the first water outlet 112, the second water inlet 113 and the second water outlet 114 are all arranged on the filter element joint 110, so that it is convenient to connect the waterway of the composite filter element 1 and shorten the time for connecting the waterway. distance, to avoid the great inconvenience caused by the intricate arrangement of the connecting waterway in the water purification equipment.

In one embodiment, referring to FIG. 5 , the lower end of the inner tub 210 is open, and the lower end of the inner tub 210 is sealed 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 Located outside the inner barrel 210, in this way, a second filter cavity 10b is formed that is ringed around the outer periphery of the first filter cavity 10a. It should be noted that, in this embodiment, the lower end of the inner barrel 210 can also be a sealed end. At this time, the lower end of the inner barrel 210 can be fixedly connected with the bottom wall of the outer barrel 120, so that the second filter cavity 10b ring can also be realized. It is formed on the outer periphery of the first filter chamber 10a. In this embodiment, the second filter chamber 10b is formed around the outer periphery of the first filter chamber 10a to make the inner structure of the outer barrel 120 more compact, reducing the complexity of the composite filter element 1 itself.

In a preferred embodiment of the present invention, referring to FIGS. 1 to 3 , the lower end of the inner tub 210 is an open end, and is spaced apart from the bottom wall of the outer tub 120; the isolation assembly 20 also includes a detachable seal A partition plate 230 is fixed at the lower end of the inner barrel 210 , and the second filter element 40 is arranged under the partition plate 230 . Wherein, the height of the outer barrel 120 along the vertical direction is greater than the height of the inner barrel 210. When the upper end of the inner barrel 210 is connected to the upper end of the outer barrel 120, the bottom wall of the outer barrel 120 will have a certain distance from the lower end of the inner barrel 210, that is, interval setting. The purpose of setting the partition plate 230 is: one, the lower end of the inner bucket 210 is sealed to prevent the water outside the inner bucket 210 from infiltrating into the inner bucket 210, and avoid the mutual leakage of the water in the first filter cavity 10a and the second filter cavity 10b; The inner barrel 210 plays a supporting role to prevent the inner barrel 210 from falling, so as to stabilize the internal structure of the composite filter element 1 .

Further, in this embodiment, the first filter element 30 is arranged in a cylindrical shape, an upper end cover 220 is provided between the upper end of the first filter element 30 and the top wall of the inner barrel 210, and the two ends of the first filter element 30 respectively correspond to the partition plate 230 and the upper end cover 220 are hermetically bonded. In this way, the water inlet channel and the water outlet channel of the first filter cavity 10 a are formed inside and outside the first filter element 30 . Wherein, the inside of the first filter element 30 may be the water outlet channel, and the outside may be the water inlet channel, and vice versa. When the two ends of the first filter element 30 are sealed and connected with the upper end cover 220 and the separation disc 230, the end faces of the first filter element 30 are respectively attached to the lower cover surface of the upper end cover 220 and the upper disc surface of the separation disc 230, thereby forming a surface Face-fit seal. In order to strengthen the sealing effect, a sealant or a seal coating can also be provided on the corresponding bonding surface, and a sealant or a seal coat can also be provided at the connection between the first filter element 30 and the upper end cover 220 or the separation disc 230, so as to further Enhance the sealing effect to prevent raw water from leaking from the bonding gap and flowing out without filtering.

In order to realize the connection between the first filter chamber 10a and the first water inlet 111 and the first water outlet 112, the upper end of the inner bucket 210 is provided with an inner bucket joint 211 communicating with the first water inlet 111, and there is a top end cover 220 and the top of the inner bucket 210. A water passage through which the outer space of the first filter element 30 communicates with the inner barrel joint 211; the upper end cover 220 is provided with an upper cover joint 221 corresponding to the position of the inner barrel joint 211, and the upper cover joint 221 is installed in the inner barrel joint 211, and The diameter of the upper cover joint 221 is smaller than that of the inner barrel joint 211 , and the upper cover joint 221 communicates with the inner space of the first filter element 30 and the first water outlet 112 . In this way, the outside of the first filter element 30 is formed as the water inlet channel, and the inside of the first filter element 30 is the water outlet channel. to the inside of the first filter element 30 , and then the purified water flows out through the first water outlet 112 to realize the filtering and purifying function of the first filter chamber 10 a for raw water.

Further, in this embodiment, the above-mentioned second filter element 40 is arranged in a cylindrical shape, and the two ends of the second filter element 40 respectively correspond to the bottom wall of the outer barrel 120 and the lower end cover 130 in sealing fit; the inner wall of the outer barrel 120 and the inner barrel The first flow channel 101 communicating with the second water inlet 113 is formed between the outer walls of the 210, and an overflow port is provided on the partition plate 230 to communicate with the outer space of the second filter element 40 and the first flow channel 101; the second water outlet 114 It communicates with the inner space of the second filter chamber 10b through a water conduit 140 . Through the above structure, the second filter chamber 10b is communicated with the second water inlet 113 and the second water outlet 114 located at the filter joint 110, so that the raw water enters the external space of the second filter element 40 through the second water inlet 113 through the first flow channel 101 , and then through the permeation and filtration of the second filter element 40, the water flow is led to the filter element joint 110 through the water guide pipe 140, and the purified water flows out from the second water outlet 114 of the filter element joint 110, realizing the filtration and purification of the raw water by the second filter chamber 10b Function. Among them, there are many ways to realize the flow port located in the separation plate 230. For example, a through hole can be directly opened on the plate surface of the separation plate 230 to form the flow port, or a plurality of supports can be arranged on the outer peripheral surface of the separation plate 230. Protrusions 231, referring to Fig. 4, the adjacent support protrusions 231 are arranged at intervals, when the partition plate 230 is fixed in the outer tub 120, between the adjacent support protrusions 231, the partition plate 230 is separated from the inner tub 120. Flow openings for water flow are formed between the walls. It can be understood that the partition plate 230 can also be fixed in the outer tub 120 by setting the support protrusion 231 . Arranged in a uniform direction, the force on the partition plate 230 is more uniform, making the product structure more stable.

Since the water outlet inside the second filter element 40 needs to pass through the water guide pipe 140 to flow to the second water outlet 114, in order to make the overall structure of the composite filter element 1 more compact, the water guide pipe 140 is preferably installed in the inner barrel 210 along the up and down direction. , the water conduit 140 seals through the partition plate 230 .

Further, in this embodiment, a lower end cover 130 is provided between the lower end of the second filter element 40 and the bottom wall of the outer barrel 120, and the two ends of the second filter element 40 are respectively corresponding to the partition plate 230 and the lower end cover 130 for sealing fit. In this way, the lower end of the second filter element 40 is prevented from directly adhering to the bottom of the outer tub 120, which reduces the accuracy requirement on the bottom wall of the outer tub 120, helps reduce the manufacturing difficulty of the outer tub 120, and reduces production costs.

The present invention also proposes a water purification device, which includes a composite filter element. The specific structure of the composite filter element refers to the above-mentioned embodiments. Since this water purification device adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned embodiment. All the beneficial effects brought by the technical solution of the example are not repeated here.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (3)

1. A composite filter element, used for water purification equipment, is characterized in that, comprising: an outer barrel, the upper end of which is open; An inner barrel, the inner barrel is arranged in the outer barrel, the inner barrel has a first filter cavity, and the outer barrel and the inner barrel have a second filter cavity; a first filter element and a second filter element, the first filter element is set in the first filter cavity, and the second filter element is set in the second filter cavity; A filter element joint, the filter element joint is provided with a first water inlet and a first water outlet connected to the first filter chamber and a second water inlet and a second water outlet connected to the second filter chamber, so The filter element joint is arranged on the upper end of the outer barrel and forms a first-level seal at the connection between the filter element joint and the outer barrel; A water guide pipe, the water guide pipe is connected to the second water outlet to form a second-level seal, and the water guide pipe also communicates 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 to form a third-level seal; an upper end cover is arranged between the upper end of the first filter element and the top wall of the inner barrel, and the upper end cover corresponds to The position of the inner barrel joint is provided with an upper cover joint, and the upper cover joint communicates 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 a fourth stage seal; The first filter element is located between the first water inlet and the first water outlet, and there is a first water inlet channel communicating with the first water inlet between the outer side of the first filter element and the inner tub , there is a first water outlet channel communicating with the first water outlet between the inner side of the first filter element and the water guide pipe; and The second filter element is located between the second water inlet and the second water outlet, and the inner wall of the outer bucket and the outer wall of the inner bucket form a first flow channel that communicates with the second water inlet. The water entering the second water inlet flows to the second filter element through the first channel; Wherein the first water inlet channel and the first water outlet channel are located between the water guide pipe and the first flow channel; The lower end of the inner barrel is an open end, and is spaced apart from the bottom wall of the housing; It also includes: a partition plate detachably sealed and fixed on the lower end of the inner barrel; a plurality of support protrusions are arranged on the outer peripheral surface of the partition plate, and the adjacent support protrusions are arranged at intervals, and the adjacent support protrusions There are water channels between the support protrusions to allow water to pass through. 2 . The composite filter element according to claim 1 , wherein the upper cover joint is pierced through the inner barrel joint, and the diameter of the upper cover joint is smaller than the diameter of the inner barrel joint. 3 . 3. A water purification device, characterized in that it comprises the composite filter element according to any one of claims 1-2.

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