CN216321148U - Reverse osmosis filter core and water purification unit - Google Patents

Abstract

The utility model relates to the technical field of household appliances, and discloses a reverse osmosis filter element and water purification equipment. The reverse osmosis filter element comprises a filter element shell, a separator, an RO membrane and a bubble water forming mechanism, wherein a water inlet and a wastewater outlet are arranged on the outer wall of the filter element shell; the partition is arranged in the filter element shell and divides the interior of the filter element shell into an upper cavity and a lower cavity, the partition is provided with a through hole for communicating the upper cavity with the lower cavity, and the water inlet is communicated with the lower cavity; the RO membrane is arranged in the upper chamber, and the water outlet side of the RO membrane is communicated with the wastewater outlet; the bubble water forming mechanism comprises a power supply assembly and a plate electrode, the plate electrode is arranged in the lower cavity, a plurality of through holes which are arranged in an array are formed in the plate electrode, and the power supply assembly is electrically connected with the plate electrode. The reverse osmosis filter core not only has stronger cleaning action on organic pollution and inorganic pollution on the surface of the RO membrane, but also can deeply penetrate into the membrane pores of the RO membrane for deep cleaning, and has good inhibition action on bacterial breeding.

Description

Reverse osmosis filter core and water purification unit

Technical Field

The utility model relates to the technical field of household appliances, in particular to a reverse osmosis filter element and water purification equipment.

Background

With the improvement of the living standard of people, more and more users begin to pay attention to the water health, and water purification equipment becomes the household appliance indispensable in home. Current water purification unit includes the main line usually and sets up the filter part on the main line, and the end of intaking of main line communicates in the water source, and the running water can flow from the play water end of main line after filter part filters from the end of intaking of main line after getting into the main line to supply the user to use. Wherein, filtering component includes leading filter core and reverse osmosis filter core, and leading filter core and reverse osmosis filter core establish ties in proper order on the main line, and leading filter core is located the one side of the end of intaking that is close to the main line. Leading filter core can carry out the coarse filtration to the running water, and the membrane pore of reverse osmosis filter core is less, almost only allows the hydrone to pass through, consequently, the reverse osmosis filter core can carry out the fine filtration to the water after leading filter core filters, makes the pure water that the user took cleaner. However, after long-time use, the reverse osmosis filter core usually can appear the dirty stifled phenomenon of membrane, leads to the user to increase latency when taking the pure water, reduces user experience and feels.

In the prior art, the reverse osmosis filter element is cleaned mainly by adopting the following two modes:

(1) the flow velocity of the water body on the raw water side of the reverse osmosis filter element is accelerated to flush the RO membrane, but the flow velocity, the pressure and the frequency of the clean water need to be strictly controlled in the mode, so that the operation is complicated;

(2) the pure water is introduced into the raw water side of the reverse osmosis filter element, but in the mode, the pure water is firstly required to be prepared, a part of wastewater is generated in the process, and the pure water can also generate wastewater after the reverse osmosis filter element is cleaned, so that more wastewater can be generated on the basis of the original wastewater quantity.

In addition, the two cleaning modes are both physical cleaning, so that pollutants accumulated in membrane pores of the RO membrane are difficult to completely remove, and the cleaning effect is poor.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide a reverse osmosis filter element and water purification equipment, which can deeply clean the membrane pores of an RO membrane, and have good cleaning effect and convenient operation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a reverse osmosis cartridge comprising:

the filter element comprises a filter element shell, wherein a water inlet and a waste water outlet are formed in the outer wall of the filter element shell;

the separator is arranged inside the filter element shell and divides the inside of the filter element shell into an upper cavity and a lower cavity, a through hole for communicating the upper cavity with the lower cavity is formed in the separator, and the water inlet is communicated with the lower cavity;

the RO membrane is arranged in the upper chamber, and the water outlet side of the RO membrane is communicated with the wastewater outlet;

bubble water forming mechanism, including power supply module and plate electrode, the plate electrode set up in cavity down, be provided with a plurality of through-holes that are the array and arrange on the plate electrode, power supply module with the plate electrode electricity is connected.

As the preferred scheme of a reverse osmosis filter core, the quantity of plate electrode is a plurality of, and is a plurality of the plate electrode along vertical direction interval set up in the lower chamber, it is a plurality of the plate electrode is established ties in proper order.

As a preferred scheme of the reverse osmosis filter element, the through holes on two adjacent electrode plates are arranged in a staggered mode.

As a preferred scheme of the reverse osmosis filter element, the through holes on each electrode plate are cylindrical holes, and the hole diameters of the through holes on the plurality of electrode plates are sequentially reduced along the water flow direction.

As a preferred scheme of reverse osmosis filter core, the quantity of via hole is a plurality of, a plurality of via hole is radially distributed on the separator.

As a preferred scheme of the reverse osmosis filter element, the RO membrane is embedded in the separating element.

As a preferable scheme of the reverse osmosis filter element, the power supply assembly comprises a first communication lead and a second communication lead, and the first communication lead and the second communication lead are alternately connected with a positive pole and a negative pole of an external power supply;

the first connecting lead, the electrode plate and the second connecting lead are sequentially connected in series.

As a preferred scheme of the reverse osmosis filter element, the first communicating lead and the second communicating lead are embedded in the filter element shell.

As a preferred embodiment of the reverse osmosis cartridge, the RO membrane is removably attached within the cartridge housing.

In order to achieve the above purpose, the present invention further provides a water purification apparatus, including the reverse osmosis filter element according to any one of the above aspects.

The utility model has the beneficial effects that:

the utility model provides a reverse osmosis filter element, which is provided with a filter element shell and can provide a supporting and accommodating space for a separator, an RO (reverse osmosis) membrane and a bubble water forming mechanism; have a plurality of plate electrodes that are the through-hole of array arrangement through the setting, the plate electrode can carry out the electrolysis to the water after leading filter core coarse filtration, the electrolysis water passes through the plate electrode, and form the electrolysis water that contains the bubble under the effect of the through-hole on the plate electrode, utilize the electrolysis water that contains the bubble to wash the RO membrane, compare in the pure water, the electrolysis water that contains the bubble not only has stronger cleaning action to organic pollution and the inorganic pollution on RO membrane surface, the diaphragm orifice that can also go deep into the RO membrane carries out the degree of depth cleanness, furthermore, the electrolysis water that contains the bubble also has fine inhibitory action to bacterial growing, the cleaning performance is better, and can guarantee that the reverse osmosis filter core has lasting flux and keeps efficiency and life.

The utility model also provides water purification equipment, and the reverse osmosis filter element can be used for cleaning the RO membrane, has a good cleaning effect, and can prolong the service life of the reverse osmosis filter element.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and 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 contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic view of a first construction of a reverse osmosis cartridge according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an electrode plate of a reverse osmosis filter element according to an embodiment of the present invention;

FIG. 3 is a schematic view of a second construction of a reverse osmosis cartridge according to an embodiment of the present invention;

fig. 4 is a schematic view of a third structure of a reverse osmosis filter element provided by the embodiment of the utility model.

In the figure:

1-a cartridge housing; 11-a water inlet; 12-a waste water outlet; 13-an upper chamber; 14-a lower chamber;

2-a separator; 21-a via hole;

3-RO membrane; 31-a pure water outlet;

4-a bubble water forming mechanism; 41-power supply components; 42-an electrode plate; 421-through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

This embodiment provides a water purification unit, and this water purification unit includes main line and filter element, is provided with entrance point and exit end on the main line, and the entrance point communicates in the water source, and filter element sets up on the main line, and the raw water gets into from the entrance point, forms the pure water after filter element filters, and the user can take the pure water at the exit end.

Specifically, the filter component includes leading filter core and reverse osmosis filter core, and leading filter core and reverse osmosis filter core establish ties in proper order, and leading filter core is located the way of house steward and is located the one side that is close to the entrance point. The front filter element is usually PP cotton and an activated carbon material, raw water can filter rust, silt and the like with larger particle sizes through the front filter element, peculiar smell in the raw water is removed through the activated carbon material, and the front filter element plays a role in coarse filtration of the raw water. The reverse osmosis filter element can finely filter the water filtered by the front filter element, and because the aperture of a reverse osmosis membrane (RO membrane) of the reverse osmosis filter element is one million of that of a hair, water molecules and part of mineral ions with small particle sizes are almost allowed to pass through, therefore, the water filtered by the reverse osmosis filter element only contains part of mineral ions with small particle sizes, bacteria and viruses can be filtered, and the purified water taken by a user from an outlet end is cleaner.

After the water purifying equipment is used for a long time, the reverse osmosis filter element can cause membrane pollution, and the reason for the membrane pollution is as follows: firstly, inorganic salt ions and substances such as small-particle size colloids, polysaccharides, proteins, humic acid and the like which cannot be filtered by the pre-filter element are not available, but the RO membrane has small membrane pores and almost only allows water molecules to permeate, so that the substances which are not filtered by the pre-filter element are attached to the RO membrane to cause membrane pollution; and secondly, the reverse osmosis filter element needs to work under external pressure, so that the density of a filter cake layer is increased, and membrane pollution is strengthened. The water velocity of flow of the water side of reverse osmosis filter core element is accelerated or the pure water is used to wash the RO membrane in the prior art, but these two kinds of modes are physical washing, and the downthehole accumulational pollutant of membrane of RO membrane is very difficult to thoroughly get rid of, and the cleaning performance is not good.

In order to solve the above problems, the present embodiment provides a reverse osmosis filter cartridge, as shown in fig. 1 and 2, comprising a filter cartridge housing 1, a partition 2, an RO membrane 3, and a bubble water forming mechanism 4, wherein a water inlet 11 and a wastewater outlet 12 are provided on an outer wall of the filter cartridge housing 1; the partition 2 is arranged inside the filter element shell 1 and divides the inside of the filter element shell 1 into an upper chamber 13 and a lower chamber 14, a through hole 21 for communicating the upper chamber 13 with the lower chamber 14 is formed in the partition 2, and the water inlet 11 is communicated with the lower chamber 14; the RO membrane 3 is arranged in the upper chamber 13, and the water outlet side of the RO membrane 3 is communicated with the waste water outlet 12; the bubble water forming mechanism 4 includes a power supply assembly 41 and an electrode plate 42, the electrode plate 42 is disposed in the lower chamber 14, a plurality of through holes 421 are disposed on the electrode plate 42 in an array, and the power supply assembly 41 is electrically connected to the electrode plate 42.

The reverse osmosis filter element provided by the embodiment can provide a supporting and accommodating space for the separating piece 2, the RO membrane 3 and the bubble water forming mechanism 4 by arranging the filter element shell 1; have a plurality of plate electrodes 42 that are the through-hole 421 of array arrangement through the setting, plate electrode 42 can carry out the electrolysis to the water after leading filter core coarse filtration, the electrolysis water passes through plate electrode 42, and form the electrolysis water that contains the bubble under the effect of through-hole 421 on plate electrode 42, utilize the electrolysis water that contains the bubble to wash RO membrane 3, compare in the pure water, the electrolysis water that contains the bubble not only has stronger cleaning action to the organic pollution and the inorganic pollution on RO membrane 3 surface, can also go deep into the embrane pore of RO membrane 3 and carry out the degree of depth cleanness, furthermore, the electrolysis water that contains the bubble also has fine inhibitory action to bacterial growing, the cleaning performance is better, and can guarantee that the reverse osmosis filter core has lasting flux and keeps efficiency and life.

Specifically, the reverse osmosis filter element is disposed on a main pipeline, as shown in fig. 2, a water inlet 11 of the filter element housing 1 is communicated with an outlet of the pre-filter element, water after coarse filtration by the pre-filter element can enter the lower chamber 14 through the water inlet 11, the electrode plate 42 can electrolyze water in the lower chamber 14 to form electrolyzed water, the electrolyzed water containing bubbles can be formed after passing through the through holes 421 on the electrode plate 42, the electrolyzed water containing bubbles enters the upper chamber 13 through the through holes 21, the RO membrane 3 is cleaned in the water flow direction shown in fig. 1, and wastewater generated after cleaning flows into the wastewater outlet 12 from the water outlet side of the RO membrane 3 and is discharged, thereby completing cleaning of the RO membrane 3. The outlet side of the RO membrane 3 refers to the upper surface of the RO membrane 3 as shown in fig. 1.

It can be understood that the main pipeline is also provided with a booster pump, the booster pump is positioned between the preposed filter element and the reverse osmosis filter element, the booster pump can pump the water filtered by the preposed filter element into the reverse osmosis filter element, and the purified water filtered by the reverse osmosis filter element can flow out through the pure water outlet 31. Therefore, when the water purifying apparatus normally operates, the electrolyzed water entering from the through hole 21 penetrates through the membrane pores of the RO membrane 3 to form purified water, and the water purifying apparatus is not cleaned, and needs to be stopped when the RO membrane 3 is cleaned in order to ensure that the electrolyzed water does not penetrate through the membrane pores of the RO membrane 3.

Further, the number of the electrode plates 42 is plural, a plurality of the electrode plates 42 are arranged in the lower chamber 14 at intervals along the vertical direction, and the plurality of the electrode plates 42 are sequentially connected in series. The plurality of electrode plates 42 electrolyze water in the lower chamber 14 at the same time, so that the electrolysis efficiency can be improved, the cleaning efficiency of the RO membrane 3 can be improved, and the downtime of the water purifying apparatus can be shortened.

If the through holes 421 on the plurality of electrode plates 42 are all arranged right opposite to each other, when the electrolyzed water passes through the plurality of electrode plates 42 in sequence, bubbles in the electrolyzed water directly pass through each through hole 421 in the vertical direction, so that the bubbles in the electrolyzed water are not uniformly distributed. Therefore, in the present embodiment, the through holes 421 on two adjacent electrode plates 42 are staggered. With this arrangement, it is possible to further improve the yield of bubbles in the electrolyzed water and to improve the uniformity of bubbles in the electrolyzed water.

Alternatively, the through holes 421 on each electrode plate 42 are cylindrical holes, and the hole diameters of the through holes 421 on the plurality of electrode plates 42 decrease in sequence along the water flow direction. Bubbles in the electrolyzed water can be cut into bubbles with smaller apertures in the gradually reduced apertures after passing through the plurality of electrode plates 42 in sequence, thereby improving the cleaning effect and ensuring the cleanliness of the RO membrane 3.

Further, the number of the through holes 21 on the partition 2 is plural, and the plural through holes 21 are radially distributed on the partition 2. By adopting the arrangement mode, the electrolyzed water containing air bubbles can simultaneously enter between the membrane layers of the RO membrane 3 through the plurality of through holes 21, so that the membrane layers can be cleaned thoroughly.

As shown in FIG. 1, a waste water outlet 12 is provided at the lower part of the cartridge housing 1, a waste water passage is provided between the RO membrane 3 and the cartridge housing 1, both ends of the waste water passage communicate with the waste water outlet 12 and the water outlet side of the RO membrane 3, respectively, and since the water outlet side of the RO membrane 3 is provided at the upper surface of the RO membrane 3 and the waste water outlet 12 is provided at the lower part of the cartridge housing 1, the waste water passage almost penetrates the entire cartridge housing 1, and in order to prevent the waste water in the waste water passage from going into the lower chamber 14 through the through hole 21 of the partition 2, in the present embodiment, the RO membrane 3 is embedded in the partition 2. By adopting the arrangement mode, the separator 2 can also play a role of isolating the waste water channel and the lower chamber 14 when separating the filter element shell 1 into the upper chamber 13 and the lower chamber 14, so that the situation that the through hole 421 on the electrode plate 42 is blocked due to the fact that waste water in the waste water channel enters the lower chamber 14 is avoided, and the service life of the electrode plate 42 is prolonged.

In this embodiment, the RO membrane 3 is removably attached within the cartridge housing 1. When the RO membrane 3 is damaged and needs to be replaced, only the RO membrane 3 needs to be taken down from the filter element shell 1 and replaced by a new RO membrane 3, the whole reverse osmosis filter element does not need to be replaced, the maintenance process is simplified, and the maintenance cost is reduced. Particularly, be provided with ring groove on the lateral wall of separator 2, it is protruding to be provided with a plurality of joints along its circumference interval on the outer wall of RO membrane 3, and the joint is protruding can the joint in ring groove to realize RO membrane 3 and separator 2's the dismantlement be connected. Optionally, the joint is protruding to adopt elastic material to make, under the bellied elastic action of joint, can make RO membrane 3 and separator 2 tightly joint, and when dismantling RO membrane 3, operating personnel can extract RO membrane 3 to the one end of keeping away from separator 2 hard to make the joint arch take place to warp, thereby make the joint arch break away from in the ring groove, thereby realize the separation of RO membrane 3 and separator 2, simple swift.

Further, as shown in fig. 1, the power supply module 41 includes a first communication wire and a second communication wire, which are alternately connected to the positive and negative poles of the external power supply; the first communication conductor, the electrode plate 42 and the second communication conductor are connected in series in sequence. When the number of the electrode plates 42 is plural, the plural electrode plates 42 are connected in series with each other by a series wire.

Specifically, the water purification device further comprises a controller, the controller is electrically connected with the power supply assembly 41, before the water purification device leaves a factory, a production person writes a control program into the controller, the controller can control the first communication lead and the second communication lead to be alternately connected with the positive pole and the negative pole of the external power supply, and by adopting the arrangement mode, scaling on the electrode plate 42 can be prevented, and the service life of the electrode plate 42 is prolonged.

Optionally, first intercommunication wire and second intercommunication wire all inlay and locate in filter core shell 1, can reduce the holistic volume of this reverse osmosis filter core, improve the space utilization of this reverse osmosis filter core.

Due to the variety of types and structures of the water purifying equipment, in order to match the installation of various water purifying equipment, as shown in fig. 1, 3 and 4, the arrangement position of the power supply assembly 41 can be adjusted adaptively, as shown in fig. 1, a first communication lead and a second communication lead of the power supply assembly 41 are arranged on one side of the filter element shell 1 away from the wastewater channel, and the connection positions of the first communication lead and the second communication lead and an external power supply are arranged on the upper part of the filter element shell 1; as shown in fig. 2, the connection positions of the first and second communication leads of the power supply module 41 and the external power supply are located at the lower part of the filter cartridge housing 1 and are opposite to the electrode plate 42, so that the lengths of the first and second communication leads can be reduced, and the manufacturing cost can be reduced; as shown in fig. 3, the first and second connection wires of the power module 41 are disposed on one side of the filter element housing 1 near the waste water channel, and the connection positions of the first and second connection wires and the external power source are disposed on the upper portion of the filter element housing 1, in this reverse osmosis filter element, the first and second connection wires need to pass through the waste water channel and then be connected to the electrode plate 42, so that the first and second connection wires need to be waterproof, and the waste water in the waste water channel is prevented from contacting the first or second connection wires, which may cause short circuit. Of course, in other embodiments, the power module 41 can also adjust its setting position according to actual production requirements, which is not limited in this embodiment.

In addition, in order to realize the automatic cleaning of the RO membrane 3 by the reverse osmosis filter element, the reverse osmosis filter element further comprises a flow meter which is arranged at the pure water outlet 31 and is used for detecting the flux of the pure water flowing out of the pure water outlet 31. In the present embodiment, the flux of pure water flowing out of the pure water outlet 31 specifically refers to the flow rate of pure water flowing out of the pure water outlet 31 per unit time. Specifically, the flow meter is electrically connected with the controller, the flow meter can transmit the measured current flux of the pure water flowing out of the pure water outlet 31 to the controller, the controller can compare the current flux with the preset minimum flux, and when the current flux is smaller than the preset minimum flux, the controller can control the booster pump on the upstream of the reverse osmosis filter element to stop working and switch on the power supply assembly 41 to clean the RO membrane 3; after the cleaning is completed, the power supply assembly 41 is disconnected and the booster pump is restarted, and the user can then take purified water from the water outlet end of the main pipeline.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A reverse osmosis cartridge, comprising:

the filter element comprises a filter element shell (1), wherein a water inlet (11) and a waste water outlet (12) are formed in the outer wall of the filter element shell (1);

the separator (2) is arranged inside the filter element shell (1) and divides the inside of the filter element shell (1) into an upper chamber (13) and a lower chamber (14), a through hole (21) for communicating the upper chamber (13) with the lower chamber (14) is formed in the separator (2), and the water inlet (11) is communicated with the lower chamber (14);

the RO membrane (3) is arranged in the upper chamber (13), and the water outlet side of the RO membrane (3) is communicated with the waste water outlet (12);

bubble water forming mechanism (4), including power supply module (41) and electrode plate (42), electrode plate (42) set up in lower cavity (14), be provided with a plurality of through-holes (421) that are the array and arrange on electrode plate (42), power supply module (41) with electrode plate (42) electricity is connected.

2. The reverse osmosis filter cartridge of claim 1, wherein the number of the electrode plates (42) is multiple, the multiple electrode plates (42) are arranged in the lower chamber (14) at intervals along the vertical direction, and the multiple electrode plates (42) are connected in series in sequence.

3. The reverse osmosis filter cartridge of claim 2, wherein the through holes (421) of two adjacent electrode plates (42) are staggered.

4. The reverse osmosis filter cartridge of claim 2, wherein the through holes (421) of each electrode plate (42) are cylindrical holes, and the diameter of the through holes (421) of the plurality of electrode plates (42) decreases in the water flow direction.

5. The reverse osmosis cartridge according to claim 1, wherein the number of the through holes (21) is multiple, and the multiple through holes (21) are radially distributed on the partition (2).

6. The reverse osmosis cartridge of claim 1, wherein the RO membrane (3) is embedded within the partition (2).

7. The reverse osmosis cartridge of claim 1, wherein the power supply assembly (41) comprises a first communication conductor and a second communication conductor, the first and second communication conductors alternately connecting a positive pole and a negative pole of an external power source;

the first connecting lead, the electrode plate (42) and the second connecting lead are connected in series in sequence.

8. The reverse osmosis filter cartridge according to claim 7, wherein the first and second communication leads are embedded in the cartridge housing (1).

9. The reverse osmosis cartridge of claim 1, wherein the RO membrane (3) is removably attached within the cartridge housing (1).

10. A water purification apparatus comprising a reverse osmosis cartridge according to any one of claims 1 to 9.

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