CN218923899U

CN218923899U - Composite filter element

Info

Publication number: CN218923899U
Application number: CN202222721571.7U
Authority: CN
Inventors: 张皓; 周海鹏; 樊学蔺
Original assignee: Kemflo Nanjing Environmental Technology Co Ltd; Kemflo International Co Ltd
Current assignee: Kemflo Nanjing Environmental Technology Co Ltd; Kemflo International Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-28
Anticipated expiration: 2032-10-17
Also published as: TWM638958U

Abstract

The utility model belongs to the field of filter elements, and particularly relates to the field of a composite filter element, which comprises a filter flask and a filter flask bottom cover, wherein the filter flask is in sealing connection with the filter flask bottom cover, and a water inlet, a purified water outlet and a waste water outlet are arranged on the top of the filter flask; a coarse and fine filtration composite filter element and an end cover are sequentially arranged in the cavity of the filter flask; the coarse and fine filtering composite filter element comprises a front filter layer, a fine filter membrane and a water collecting pipe, wherein the end cover is provided with a hollow boss, and the water collecting pipe is communicated with a purified water outlet through the hollow boss. Raw water flows into the cavity inside the filter flask from the water inlet at the top end of the filter flask, flows through the coarse-fine filtration composite filter element, waste water flows out through the waste water outlet at the top of the filter flask, and purified water flows out from the purified water outlet through the water collecting pipe. Through using coarse and fine filtration composite filter element, reduce leading filtration module, reduce the inside module of composite filter element, provide simple structure, convenient assembling, the volume is littleer, the high composite filter element of integrated level.

Description

Composite filter element

Technical Field

The utility model belongs to the field of filter elements, and particularly relates to the field of composite filter elements.

Background

The water purifying device is widely applied to daily life of thousands of households, and in order to obtain better filtering effect, a fine filtering mode, such as reverse osmosis filtering or nanofiltration filtering, is adopted in most cases. But fine filter core cost is higher, in order to prolong the life of fine filter core, saves use cost, sets up leading filter core in the trade generally before fine filter core, therefore the compound filter core that has fine filtration function is most with leading filter module and fine filter module separately setting, leads to compound filter core module numerous, and the installation is complicated.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the composite filter element filter material of the existing water purifier has complex configuration, large volume and low integration level. Therefore, the utility model provides a solution based on the coarse and fine filtration composite filter material, and reduces the prepositive filtration modules in the composite filter element, thereby providing the composite filter element with small volume, high integration level and comprehensive filtration.

For this purpose, the utility model adopts the following technical scheme: the composite filter element comprises a filter flask and a filter flask bottom cover, wherein the filter flask is connected with the filter flask bottom cover, a water inlet, a purified water outlet and a waste water outlet are formed in the top of the filter flask, a coarse and fine filtration composite filter element and an end cover are arranged on the filter flask bottom cover, and the end cover is arranged between the coarse and fine filtration composite filter element and the top of the filter flask; the coarse and fine filtration composite filter element comprises a membrane layer group and a water collecting pipe, wherein the membrane layer group comprises a front filter layer and fine filter membranes, a water inlet flow passage and a water production flow passage are arranged between the fine filter membranes, the water inlet flow passage is provided with an inflow port and a wastewater outflow port, the water production flow passage is communicated with the water collecting pipe, and the front filter layer is arranged on one side, close to the water inlet flow passage, of the fine filter membranes; the end cover is provided with a hollow boss, a waste water channel is formed between the inner wall of the hollow boss and the matched boss at the top of the filter flask, one end of the waste water channel is communicated with the waste water outlet, and the other end of the waste water channel is communicated with the waste water outlet; the water collecting pipe is connected with the matching boss at the top of the filter flask, and the water collecting pipe is communicated with the purified water outlet; raw water enters the filter flask from the water inlet, flows into the coarse and fine filtering composite filter element, waste water is discharged from the waste water outlet through the waste water outlet, and purified water flows out from the purified water outlet through the water collecting pipe.

The front filter layer is a carbon fiber cloth layer and/or a PP cotton layer and/or a cloth layer and/or a non-woven cloth layer and/or a carbon powder layer and/or a carbon particle layer and/or an ion exchange resin layer.

The fine filter membrane is a reverse osmosis membrane or a nanofiltration membrane.

At least two layers of pre-filter layers are arranged between the fine filter membranes, and the membrane layers are adhered by gluing or compacting.

And a waterproof layer is arranged on the outer wall of the coarse and fine filtering composite filter element.

The waterproof layer is waterproof coiled material and/or waterproof coating.

The components are connected in a sealing way.

The sealing connection is sealing ring sealing connection, welding sealing connection, spin fusion sealing connection, adhesive tape sealing connection or glue sealing connection.

The inner wall of the lower part of the end cover is abutted against the outer wall of the top of the coarse and fine filtration composite filter element, and a raw water channel is formed between the outer wall of the end cover and the inner wall of the filter flask.

The beneficial effects achieved by the utility model are as follows: the front filter material module is reduced, the filter element structure is simplified, and the composite filter element has smaller volume, simpler installation and higher integration level.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the utility model, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the utility model.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a perspective view showing the structure of a composite filter element.

Fig. 2 is a cross-sectional view showing the structure of a composite filter element.

Fig. 3 is a waterway showing cross-section of a composite filter element.

1. Filter flask, 2, filter flask bottom cover, 3, coarse and fine filter composite filter element, 4, end cover, 301, waterproof layer, 302, membranous layer group, 303, a water collecting pipe, 304, a waste water outlet, 101, a water inlet, 102, a purified water outlet, 103, a waste water outlet, 401 and a hollow boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

As shown in fig. 1, 2 and 3, the composite filter element comprises a filter flask 1 and a filter flask bottom cover 2, wherein the filter flask 1 is in sealing connection with the filter flask bottom cover 2, a water inlet 101, a purified water outlet 102 and a waste water outlet 103 are arranged on the top of the filter flask 1, a coarse and fine filtration composite filter element 3 and an end cover 4 are arranged on the filter flask bottom cover 2, and the end cover 4 is arranged between the coarse and fine filtration composite filter element 3 and the top of the filter flask 1; the coarse and fine filtration composite filter element 3 comprises a membrane layer group 302 and a water collecting pipe 303, wherein the membrane layer group 302 is arranged on the circumference of the water collecting pipe 303, the membrane layer group 302 comprises a front filter layer and fine filter membranes, a water inlet flow channel and a water production flow channel are arranged between the fine filter membranes, the water inlet flow channel is provided with an inflow port and a wastewater outflow port 304, the water production flow channel is communicated with the water collecting pipe, and the front filter layer is arranged on one side of the fine filter membrane close to the water inlet flow channel; the end cover is provided with a hollow boss 401, the hollow boss 401 is in sealing connection with a matching boss at the top of the filter flask 1, a waste water channel is formed between the inner wall of the hollow boss 401 and the matching boss at the top of the filter flask 1, one end of the waste water channel is communicated with the waste water outlet, and the other end of the waste water channel is communicated with the waste water outlet; the water collecting pipe 303 is connected with the matching boss at the top of the filter flask 1 in a sealing way, and the water collecting pipe 303 is communicated with the purified water outlet 102; raw water enters the filter flask 1 from the water inlet 101, flows into the coarse and fine filtration composite filter element 3, waste water is discharged from the waste water outlet 304 through the waste water outlet 103, and purified water flows out from the purified water outlet 102 through the water collecting pipe 303.

In this embodiment, the pre-filter layer of the coarse and fine filtration composite filter element is a carbon fiber cloth layer or a PP cotton layer or a cloth layer or a nonwoven cloth layer or a carbon powder layer or a carbon particle layer or an ion exchange resin layer, the fine filtration membrane is an RO reverse osmosis membrane or a nanofiltration membrane, the pre-filter layer is disposed between the fine filtration membranes, and the pre-filter layer and the fine filtration membrane are synchronously curled along the water collecting pipe 602 to form the composite filter element, so as to avoid the damage of the fine filtration membrane caused by mutual friction.

In specific operation, the preposed filter layers with different materials can be arranged at the same time, and the number of layers can be more than one, so that the efficiency of the preposed filter is improved.

In this embodiment, the waterproof layer 301 is a waterproof roll or a waterproof coating, and completely wraps the side surface of the formed composite filter element 3, and only the upper and lower end surfaces of the composite filter element 3 are left as water flow channels.

In a specific operation, the waterproof coating and the waterproof coiled material can be used simultaneously, so that the sealing performance of the waterproof layer is improved.

In this embodiment, the lower inner wall of the end cap is in sealing connection with the upper portion of the coarse and fine filtration composite filter element, and the lower outer wall and the inner wall of the filter flask form a raw water channel.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a compound filter core, includes filter flask and filter flask bottom, the filter flask with filter flask bottom lid is connected, be provided with water inlet, water purification export and waste water export on the top of filter flask, its characterized in that:

the bottom cover of the filter flask is provided with a coarse and fine filtration composite filter element and an end cover, and the end cover is arranged between the coarse and fine filtration composite filter element and the top of the filter flask;

the coarse and fine filtration composite filter element comprises a membrane layer group and a water collecting pipe, wherein the membrane layer group comprises a front filter layer and fine filter membranes, a water inlet flow passage and a water production flow passage are arranged between the fine filter membranes, the water inlet flow passage is provided with an inflow port and a wastewater outflow port, the water production flow passage is communicated with the water collecting pipe, and the front filter layer is arranged on one side, close to the water inlet flow passage, of the fine filter membranes;

the end cover is provided with a hollow boss, a waste water channel is formed between the inner wall of the hollow boss and the matched boss at the top of the filter flask, one end of the waste water channel is communicated with the waste water outlet, and the other end of the waste water channel is communicated with the waste water outlet;

the water collecting pipe is connected with the matching boss at the top of the filter flask, and the water collecting pipe is communicated with the purified water outlet;

raw water enters the filter flask from the water inlet, flows into the coarse and fine filtering composite filter element, waste water is discharged from the waste water outlet through the waste water outlet, and purified water flows out from the purified water outlet through the water collecting pipe.

2. A composite filter element according to claim 1, wherein: the front filter layer is a carbon fiber cloth layer and/or a PP cotton layer and/or a cloth layer and/or a non-woven cloth layer and/or a carbon powder layer and/or a carbon particle layer and/or an ion exchange resin layer.

3. A composite filter element according to claim 1, wherein: the fine filter membrane is a reverse osmosis membrane or a nanofiltration membrane.

4. A composite filter element according to claim 1, wherein: at least two layers of pre-filter layers are arranged between the fine filter membranes, and the membrane layers are adhered by gluing or compacting.

5. A composite filter element according to claim 1, wherein: and a waterproof layer is arranged on the outer wall of the coarse and fine filtering composite filter element.

6. A composite filter cartridge according to claim 5, wherein: the waterproof layer is waterproof coiled material and/or waterproof coating.

7. A composite filter element according to claim 1, wherein: the components are connected in a sealing way.

8. A composite filter element according to claim 7, wherein: the sealing connection is sealing ring sealing connection, welding sealing connection, spin fusion sealing connection, adhesive tape sealing connection or glue sealing connection.

9. A composite filter element according to claim 1, wherein: the inner wall of the lower part of the end cover is abutted against the outer wall of the top of the coarse and fine filtration composite filter element, and a raw water channel is formed between the outer wall of the end cover and the inner wall of the filter flask.