CN218810649U - RO filter core and purifier - Google Patents

Abstract

The utility model belongs to the technical field of water purifiers and discloses an RO filter element and a water purifier. The RO filter element includes a casing, an RO membrane and antibacterial parts. The antibacterial part is set inside the shell, and the antibacterial part is located upstream of the RO membrane. The water flow from the water inlet flows to the antibacterial part, and the water flow through the antibacterial part flows to the RO membrane for filtration. The filtered pure water can Flow out from the outlet. The RO filter element can effectively inhibit the growth of bacteria, without consuming a large amount of electricity and at a low cost.

Description

A kind of RO filter element and water purifier

technical field

The utility model relates to the technical field of water purifiers, in particular to an RO filter element and a water purifier.

Background technique

At present, with the rapid development of industry, the ecological environment is deteriorating, the water environment is seriously polluted, and the safety of drinking water is seriously threatened. In order to ensure the safety of drinking water, water purifiers containing RO (Reverse Osmosis, reverse osmosis) filter elements are often used to filter drinking water. The filter cartridge of the RO filter element is equipped with an RO membrane. Under certain pressure conditions, water molecules can pass through the RO membrane, while inorganic salts, heavy metal ions, and organic colloids in the water cannot pass through the RO membrane, so that part of the water is separated from the RO filter element. Out, the non-permeated water forms waste water due to the increase of solutes. Water purifiers containing RO filters were used in industrial fields such as seawater and brackish water desalination, boiler feed water, and wastewater treatment in the early days. In recent years, they have been used in civilian fields. Sodium hypochlorite is generally added to the water in the waterworks to sterilize the tap water. Therefore, the tap water at home often contains chloride ions. Since the RO membrane filter elements in most water purifiers currently on the market are not resistant to chlorine, the activated carbon filter elements in the prior art can only perform physical filtration and have no bactericidal function, making it easy to breed bacteria in the pipeline downstream of the activated carbon filter element, resulting in RO membrane Pollution not only shortens the service life of the RO membrane, but also brings great safety hazards to human health.

The bacteriostasis technology adopted in the prior art includes pipeline high-temperature bacteriostasis and ultraviolet bacteriostasis. High-temperature antibacterial refers to heating the water in the pipeline to kill bacteria, which consumes a lot of power. Ultraviolet antibacterial refers to adding ultraviolet light to the faucet to inhibit bacteria, but this method is costly.

Therefore, it is urgent to propose an RO filter element and a water purifier to solve the above problems.

Utility model content

An object of the present utility model is to provide an RO filter element, which can effectively inhibit the growth of bacteria, without consuming a large amount of electricity and at low cost.

For this purpose, the utility model adopts the following technical solutions:

A RO filter element, comprising:

A casing, the casing is provided with a water inlet and a water outlet;

an RO membrane, the RO membrane is disposed inside the housing;

A bacteriostatic element, the bacteriostatic element is arranged inside the housing, and the bacteriostatic element is located upstream of the RO membrane, the water entering from the water inlet flows to the bacteriostatic element, passes through the The water flow of the antibacterial element then flows to the RO membrane for filtration, and the filtered pure water can flow out from the water outlet.

Optionally, the bacteriostatic element includes a first bacteriostatic body and a housing portion, the housing portion has a cavity, the first bacteriostatic body is disposed in the cavity, and the housing portion is provided with a Orifice.

Optionally, the first bacteriostasis is KDF.

Optionally, the RO membrane is disposed at the center of the housing, a sterilizing space is formed between the outer periphery of the RO membrane and the inner wall of the housing, and the bacteriostatic element is disposed in the sterilizing space.

Optionally, a baffle is provided between the water inlet and the RO membrane, a flow channel is formed between the baffle and the inner wall of the housing, the flow channel communicates with the sterilization space, and the baffle A first communication hole is arranged on the plate, and the first communication hole communicates with the water outlet. The water flow can flow to the antibacterial component through the flow channel. After being filtered by the RO membrane, the pure water Flow out through the first communication hole and the water outlet in sequence.

Optionally, a waste water outlet is also provided on the housing, and a second communication hole is provided on the baffle, the waste water outlet communicates with the second communication hole, and the waste water can pass through the second communication hole and the second communication hole in turn. The waste water outlet flows out.

Another object of the utility model is to provide a water purifier, the antibacterial component in the water purifier can effectively inhibit the growth of bacteria and ensure the safety and health of water quality.

For this purpose, the utility model adopts the following technical solutions:

A water purifier, comprising a pipeline and the above-mentioned RO filter element, the pipeline has a raw water inlet and a pure water outlet, the RO filter element is connected to the pipeline, the water inlet is connected to the raw water inlet, and the The water outlet is in communication with the pure water outlet.

Optionally, a bacteriostasis tube is connected upstream of the RO filter element, and both ends of the bacteriostasis tube are provided with partitions, and a second bacteriostasis body is arranged in the bacteriostasis tube, and the water flow passes through the bacteriostasis tube. After the bacteria tube, it flows to the RO filter element.

Optionally, a pre-composite filter element is arranged upstream of the antibacterial pipe, and the water flows to the antibacterial pipe through the pre-compound filter element.

Optionally, a post activated carbon filter is provided downstream of the RO filter, and the primary pure water flows out from the water outlet after passing through the post activated carbon filter.

Beneficial effect:

The RO filter element provided by the utility model, by setting antibacterial parts inside the shell, makes the water flow first contact with the antibacterial parts before flowing through the RO membrane to filter, so as to achieve the effect of inhibiting the growth of bacteria and prevent the RO membrane from being affected by bacteria. Therefore, the setting of the antibacterial parts prolongs the service life of the RO membrane, thereby prolonging the service life of the RO filter element. The sterilization process of the antibacterial component does not need to consume electricity, nor does it need to use ultraviolet radiation, and the cost is low.

Description of drawings

Fig. 1 is the structural representation of the RO filter element provided by the utility model;

Fig. 2 is a schematic diagram of the internal structure of the RO filter element provided by the utility model;

Fig. 3 is the structural representation of antibacterial part that the utility model provides;

Fig. 4 is a schematic diagram of the internal structure of the antibacterial part provided by the utility model;

Fig. 5 is the structural representation of the water purifier provided by the utility model;

Fig. 6 is a schematic diagram of the internal structure of the antibacterial tube provided by the utility model;

Fig. 7 is a schematic structural view of the antibacterial tube provided by the present invention.

In the picture:

10. Raw water inlet; 20. Pure water outlet; 100. RO filter element; 110. Shell; 120. Antibacterial parts; 121. First antibacterial body; ;131, waste water proportional valve; 200, antibacterial pipe; 210, partition net; 220, second antibacterial body; 300, pre-compound filter element; 400, water inlet solenoid valve; 500, booster pump; 600, one-way valve; 700, high pressure switch; 800, rear activated carbon filter; 900, gooseneck faucet.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two different positions, and "above", "above" and "above" the first feature on the second feature include that the first feature is on the second feature. Directly above and obliquely above, or simply means that the first feature level is higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Embodiment one

Referring to FIG. 1 and FIG. 2 , this embodiment provides an RO filter element 100 , which includes a housing 110 , an RO membrane and a bacteriostatic element 120 . The bacteriostatic component 120 is arranged inside the shell 110, and the bacteriostatic component 120 is located at the upstream position of the RO membrane. The water flow entering from the water inlet flows to the bacteriostatic component 120, and the water flow through the bacteriostatic component 120 flows to the RO membrane for filtration. The final pure water can flow out from the water outlet.

The above-mentioned RO filter element 100, by setting the bacteriostatic element 120 inside the housing 110, makes the water flow first contact with the bacteriostatic element 120 before flowing through the RO membrane (not shown in the figure) to filter, thereby achieving the effect of inhibiting the growth of bacteria. The RO membrane is prevented from being damaged due to the influence of bacteria. Therefore, the installation of the antibacterial component 120 prolongs the service life of the RO membrane, thereby prolonging the service life of the RO filter element 100 . The sterilization process of the antibacterial component 120 does not need to consume electricity, and does not need to be irradiated with ultraviolet light, so the cost is low.

Continuing to refer to FIG. 1 , the housing 110 of the RO filter element 100 in this embodiment is in the shape of a hollow cylinder, and the water inlet, water outlet and waste water outlet are all arranged on the top of the housing 110 . The filtration method of the RO membrane in this embodiment is a mature prior art, and will not be described in detail here.

Further, referring to FIG. 3 and FIG. 4 , the bacteriostatic element 120 includes a first bacteriostatic body 121 and an accommodating portion 122 , the accommodating portion 122 has a cavity, the first bacteriostatic body 121 is arranged in the cavity, and the accommodating portion 122 is provided with There are flow holes 123 . The first antibacterial component 120 is made of materials that can effectively inhibit the growth of bacteria. Optionally, the first antibacterial body 121 can be KDF, KDF is a high-purity copper-zinc alloy particle, which performs water treatment through micro-electrochemical oxidation-reduction reactions, and when in contact with water, the two metals in the alloy Countless small primary battery systems are formed on the submicroscopic scale. This material has strong reaction ability and extremely fast reaction speed in water, and can remove up to 99% of chlorine and dissolved lead, mercury, nickel, chromium and other metals in water. ions and compounds. It has an outstanding effect on inhibiting the growth of bacteria, fungi, dirt and algae. Therefore, it can ensure that the water flowing into the RO membrane is clean enough to prevent the growth of bacteria in the RO membrane, prolong the service life of the RO membrane, reduce water pollution, and improve the safety of water quality. In this embodiment, the first antibacterial body 121 is KDF55. In addition, in this embodiment, the housing part 122 is an annular circular tubular structure, so as to ensure the smooth flow of water flowing through the antibacterial element 120. The surface of the housing part 122 is provided with a plurality of flow holes 123, and the water flow can pass through the flow holes. 123 enters the accommodating portion 122 and contacts the KDF55. Optionally, the flow hole 123 is a round hole, and a plurality of flow holes 123 are distributed along the circumference of the receiving portion 122. Of course, the flow hole 123 can also be in other shapes, and the arrangement can be set according to the needs. It can be understood that Specifically, the size of the flow hole 123 should be set according to the size of the first antibacterial body 121 to prevent the first antibacterial body 121 from falling out of the flow hole 123 .

Further, the RO membrane is arranged at the center of the casing 110 , a sterilizing space is formed between the outer periphery of the RO membrane and the inner wall of the casing 110 , and the bacteriostatic element 120 is arranged in the sterilizing space. Optionally, the RO membrane is arranged in the center of the casing 110 in a coiled shape, the central axis of which coincides with the central axis of the casing 110, and the sterilization space is arranged around the RO membrane. In this embodiment, the housing portion 122 is ring-shaped and sleeved on the outside of the RO membrane, that is, the RO membrane is placed on the inner ring of the housing portion 122, and the housing portion 122 can be fixedly connected to the inner wall of the housing 110, so that the The first antibacterial body 121 and the RO filter element 100 are integrated in the housing 110 , and the arrangement of the accommodating part 122 will not affect the filtering function of the RO membrane. Optionally, the outer ring of the receiving portion 122 and the inner wall of the housing 110 may be fixedly connected by bonding. It can be understood that the diameter of the outer circle of the housing part 122 is set according to the inner diameter of the housing 110 , the diameter of the inner circle of the housing part 122 can be set according to the structure of the RO membrane, and the housing part 122 is horizontally arranged in the housing 110 . Optionally, multiple antibacterial elements 120 may be provided, and the plurality of antibacterial elements 120 are arranged at intervals along the axial direction of the housing 110 . In this embodiment, there are three antibacterial elements 120 , and in other embodiments, the number of antibacterial elements 120 can be two, four, five, or other numbers.

Further, a baffle is provided between the water inlet and the RO membrane, a flow channel is formed between the baffle and the inner wall of the casing, the flow channel communicates with the sterilization space, and a first communication hole is provided on the baffle, and the first communication hole and the outlet The water port is connected, and the water flow can flow to the antibacterial element 120 through the flow channel. After being filtered by the RO membrane, the pure water flows out through the first communication hole and the water outlet in sequence. In this embodiment, the water inlet is set on the top of the casing 110, therefore, the baffle is set on the top of the RO membrane, the baffle is set in a circular shape according to the shape of the casing 110 and the RO membrane, and the diameter of the baffle is smaller than the diameter of the casing 110 , so as to form a circle of gap along the periphery of the baffle, the gap is the flow channel, after the water flow enters the shell 110 from the water inlet, it is blocked by the baffle, flows to the sterilization space through the flow channel, and then flows through the antibacterial ring 120.

Further, the shell 110 is also provided with a waste water outlet, and a second communication hole is provided on the baffle, the waste water outlet communicates with the second communication hole, and the waste water can flow out through the second communication hole and the waste water outlet in sequence. Optionally, the waste water outlet is connected with a waste water outlet pipe 130, and the waste water outlet pipe 130 is provided with a waste water proportional valve 131, so that the proportion of waste water in the water flow can be adjusted.

Referring to FIG. 5 , this embodiment also provides a water purifier, including pipelines and the aforementioned RO filter element 100 . The pipeline has a raw water inlet 10 and a pure water outlet 20. The RO filter element 100 is connected to the pipeline and is arranged between the raw water inlet 10 and the pure water outlet 20. The water inlet on the RO filter element 100 is connected to the raw water inlet 10. The RO filter element 100 The upper water outlet communicates with the pure water outlet 20.

Further, referring to FIG. 5 and FIG. 6 , a bacteriostatic pipe 200 is connected upstream of the RO filter element 100 , and a second bacteriostatic body 220 is disposed inside the bacteriostatic pipe 200 , and the raw water flows to the RO filter element 100 after passing through the bacteriostatic pipe 200 . An antibacterial pipe 200 is installed upstream of the RO filter element 100. After the raw water enters the pipeline, it first enters the antibacterial pipe 200 for sterilization, thereby reducing the bacteria in the water, and then enters the antibacterial part 120 for secondary sterilization, which can be greatly improved. Reduce the probability of bacterial growth and effectively protect the RO membrane from bacterial damage.

Referring to FIG. 7 , both ends of the bacteriostatic tube 200 are provided with spacers 210 , which can prevent the second bacteriostatic body 220 from leaking from the bacteriostatic tube 200 . Optionally, the second antibacterial body 220 may use KDF55, or other components with bactericidal function.

Further, a pre-composite filter element 300 is provided upstream of the antibacterial pipe 200 , and water flows through the pre-compound filter element 300 to the antibacterial pipe 200 . The pre-composite filter element 300 may include a PP filter element, a granular activated carbon filter element, a compressive carbon filter element, etc. The pre-composite filter element 300 is a conventional setting in the prior art, and will not be repeated here.

In this embodiment, the antibacterial pipe 200 is arranged between the pre-composite filter element 300 and the RO filter element 100 , and a water inlet solenoid valve 400 and a booster pump 500 are sequentially arranged downstream of the antibacterial pipe 200 . The water inlet solenoid valve 400 can more accurately set the water pressure when the product is running, so that the product can be adjusted in time according to the water quality, the water pressure in the pipeline, the booster pump 500, etc. Excessive water pressure can cause damage to the product.

Further, a post activated carbon filter 800 is arranged downstream of the RO filter 100 , and the primary pure water flows out from the water outlet after passing through the post activated carbon filter 800 . A one-way valve 600 and a high pressure switch 700 are sequentially arranged between the RO filter element 100 and the post activated carbon filter element 800 . When the system pressure is higher than a certain value, the high-pressure switch 700 will be closed, and the system will stop working. A check valve 600 is installed between the RO filter element 100 and the high-pressure switch 700 to avoid backflow of primary pure water during standby. The primary pure water is filtered by the rear activated carbon filter element 800 to form the secondary pure water. In this embodiment, a gooseneck faucet 900 is provided in the pipeline downstream of the post activated carbon filter element 800 , and the secondary pure water can flow out from the gooseneck faucet 900 .

The working process of the water purifier in the present embodiment is as follows:

When the water is produced by the water purifier, the raw water enters the pipeline from the raw water inlet 10 under the action of the booster pump 500, and after being filtered by the pre-composite filter element 300, it contacts with the KDF55 in the antibacterial pipe 200 to carry out an overcurrent antibacterial process. The water solenoid valve 400 controls the water flow in the pipeline according to water quality, water pressure, booster pump 500 and other conditions. Next, the water flow enters the shell 110 of the RO filter element 100, and firstly contacts the KDF55 in the bacteriostatic element 120 for secondary overcurrent antibacterial, and the water flow after the secondary overcurrent antibacterial is filtered by the RO membrane. The formed waste water flows out from the waste water outlet pipe 130 , the primary pure water flows out from the water outlet on the housing 110 , and then enters the rear activated carbon filter element 800 for filtration, and finally the formed secondary pure water flows out from the gooseneck faucet 900 .

When the water purifier stops producing water, the KDF55 of the antibacterial tube 200 and the KDF55 of the RO filter element 100 will be soaked in water for contact antibacterial, ensuring that bacteria will not grow inside the pipe and the RO membrane.

The antibacterial materials involved in the water purifier provided by this embodiment are safe, effective, and low in cost; the antibacterial tube 200 is simple to prepare and has strong operability; the antibacterial part 120 is built in the shell 110 of the RO filter element 100, saving At the same time, it can effectively inhibit the growth of bacteria on the surface of the RO membrane, prolong the service life of the RO membrane, and reduce the cost of use for users. The water purifier is equipped with the antibacterial tube 200 and the RO filter element 100 with the antibacterial part 120 to realize the antibacterial of the whole pipeline of the water purifier, so that the user can drink safe and healthy water.

Embodiment two

The same technical features in this embodiment as in Embodiment 1 will not be repeated, and the differences between this embodiment and Embodiment 1 will be described below:

The bacteriostatic element 120 in the present embodiment comprises a tubular shroud and a first bacteriostatic body 121, the shroud is sleeved on the outside of the RO membrane, the top of the shroud is fixedly connected to the edge of the baffle, and the bottom of the shroud is connected to the shell 110 The bottom is fixedly connected, and a plurality of first through holes are arranged on the hoarding plate. A sterilization space is formed between the outer side of the enclosure and the inner wall of the housing 110. A plurality of circular partitions are horizontally arranged in the sterilization space, and a plurality of second through holes are arranged on the partitions. It is divided into multiple compartments, and a first antibacterial body 121 is placed in each compartment. After the water flows into the shell 110 through the water inlet, it flows into the sterilization space under the barrier of the baffle plate. Since the second through hole is arranged on the partition plate, the partitions are connected to each other, and the water flows through the first antibacterial body 121 for sterilization. After that, it enters the RO membrane through the first through hole for filtration.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. Various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. An RO filter cartridge (100) comprising:

the water-saving device comprises a shell (110), wherein a water inlet and a water outlet are formed in the shell (110);

an RO membrane disposed inside the housing (110);

bacteriostatic spare (120), bacteriostatic spare (120) set up the inside of shell (110), just bacteriostatic spare (120) are located the upstream position of RO membrane, follow the rivers flow direction that the water inlet got into bacteriostatic spare (120), process the rivers of bacteriostatic spare (120) flow to again the RO membrane filters, and the pure water after the filtration can be followed the delivery port flows out.

2. The RO cartridge (100) of claim 1 wherein the bacteriostatic member (120) comprises a first bacteriostatic body (121) and a receptacle (122), the receptacle (122) having a cavity, the first bacteriostatic body (121) being disposed within the cavity, the receptacle (122) being provided with an overflowing hole (123).

3. An RO filter cartridge (100) according to claim 2 characterized in that the first bacteria inhibitor (121) is KDF.

4. A RO cartridge (100) according to any one of claims 1 to 3 wherein the RO membrane is arranged in the centre of the housing (110) with a sterilizing space formed between the periphery of the RO membrane and the inner wall of the housing (110) and the bacteriostatic member (120) is arranged in the sterilizing space.

5. An RO filter cartridge (100) according to claim 4, wherein a baffle is disposed between the water inlet and the RO membrane, a flow channel is formed between the baffle and the inner wall of the housing, the flow channel is communicated with the sterilization space, a first communication hole is disposed on the baffle, the first communication hole is communicated with the water outlet, the water flow can flow to the bacteriostasis member (120) through the flow channel, and after being filtered by the RO membrane, the pure water flows out through the first communication hole and the water outlet in sequence.

6. An RO cartridge (100) according to claim 5, wherein the housing is further provided with a waste water outlet, the baffle is provided with a second communication hole, the waste water outlet and the second communication hole are communicated, and waste water can flow out through the second communication hole and the waste water outlet in sequence.

7. A water purification machine comprising a pipeline having a raw water inlet (10) and a pure water outlet (20), and a RO cartridge (100) according to any of claims 1 to 6, said RO cartridge (100) being in communication with said pipeline, said water inlet being in communication with said raw water inlet (10), and said water outlet being in communication with said pure water outlet (20).

8. The water purifier according to claim 7, wherein an antibacterial pipe (200) is connected to the upstream of the RO filter cartridge (100), two ends of the antibacterial pipe (200) are respectively provided with a separation net (210), a second antibacterial body (220) is arranged in the antibacterial pipe (200), and the water flow flows to the RO filter cartridge (100) after passing through the antibacterial pipe (200).

9. The water purification machine according to claim 8, wherein upstream of the pipe (200) a pre-composite filter (300) is provided, through which the water flows towards the pipe (200) passing through the pre-composite filter (300).

10. The water purifier according to claim 7, characterized in that a post-positioned activated carbon filter element (800) is arranged downstream of the RO filter element (100), and the purified water passes through the post-positioned activated carbon filter element (800) and then flows out from the water outlet.

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