CN216236162U - Pressure storage structure of filter element and filter element using same - Google Patents
Pressure storage structure of filter element and filter element using same Download PDFInfo
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- CN216236162U CN216236162U CN202120996659.2U CN202120996659U CN216236162U CN 216236162 U CN216236162 U CN 216236162U CN 202120996659 U CN202120996659 U CN 202120996659U CN 216236162 U CN216236162 U CN 216236162U
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Abstract
The utility model discloses a pressure storage structure of a filter element and the filter element using the same, wherein the pressure storage structure of the filter element comprises an air tank upper cover, an air tank lower cover and an elastic membrane; the upper gas tank cover is arranged at the upper end of the lower gas tank cover, an accommodating space is formed between the upper gas tank cover and the lower gas tank cover, the edge of the elastic membrane is tightly pressed between the upper gas tank cover and the lower gas tank cover, and the accommodating space is divided into a first accommodating cavity and a second accommodating cavity by the elastic membrane; the gas tank upper cover is provided with a gas tank water inlet, and the gas tank water inlet is used for being connected with an external filter element. The pressure storage structure can realize the purpose of the backflushing filter element without depending on a filter element structure, can be applied to an RO membrane filter element and a rear filter element, and has higher universality, thereby reducing the development cost and the die cost of enterprises.
Description
Technical Field
The utility model relates to the field of filter elements of water purifiers, in particular to a pressure storage structure of a filter element and the filter element using the same.
Background
The existing water purifying equipment mainly filters tap water by a filter element, and water in the tap water is separated from impurities such as inorganic salt, heavy metal ions, organic matters, colloid, bacteria, viruses and the like by the water purifying equipment under pressure by utilizing an RO (reverse osmosis) membrane. When the water purifying equipment is in a standby state for a long time, ions in the tap water and the waste water can be gradually diffused into the pure water, so that the TDS value of the pure water is increased; when starting water purification unit next time, the TDS value of its anterior segment play water can be than higher, influences user's health.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure storage structure of a filter element and the filter element using the same, so as to solve the problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a pressure storage structure of a filter element, which comprises an air tank upper cover, an air tank lower cover and an elastic membrane, wherein the air tank upper cover is provided with a gas inlet pipe;
the upper gas tank cover is arranged at the upper end of the lower gas tank cover, an accommodating space is formed between the upper gas tank cover and the lower gas tank cover, the edge of the elastic membrane is tightly pressed between the upper gas tank cover and the lower gas tank cover, and the accommodating space is divided into a first accommodating cavity and a second accommodating cavity by the elastic membrane; the gas tank upper cover is provided with a gas tank water inlet, and the gas tank water inlet is used for being connected with an external filter element.
In the pressure storage structure of the filter element, a positioning convex ring is arranged on the periphery of the water inlet of the gas tank, and the lower end of the filter element is inserted into the positioning convex ring.
In the pressure storage structure of the filter element, an air tap is arranged on the bottom surface of the lower cover of the air tank and used for inflating the elastic membrane.
In the pressure storage structure of the filter element, the elastic membrane is in a membrane shape, the upper gas tank cover and the lower gas tank cover are welded through ultrasonic waves, and the elastic membrane is clamped by the upper gas tank cover and the lower gas tank cover.
The utility model provides a filter element, which comprises a filter element upper cover, a filter assembly, a filter flask and a pressure storage structure of the filter element, wherein the filter element upper cover is detachably connected to the upper end of the filter flask, and the filter assembly is placed in the filter flask; the bottom of the filter flask is provided with a connecting hole;
the filter element upper cover is provided with a raw water inlet and a pure water outlet; the raw water inlet is communicated with the interior of the filter flask; the pure water outlet is connected with the pure water outlet end of the filtering component; the lower end of the filtering component is communicated with the connecting hole and is connected with the water inlet of the air tank.
In the filter element, the filter component is an activated carbon filter element or an RO membrane filter element.
In the filter element, the upper cover of the filter element is also provided with a waste water outlet, and the waste water outlet is connected with the waste water outlet end of the filter component.
In the filter element, the inner side of the opening at the lower end of the filter flask is provided with a supporting convex ring, and the supporting convex ring is used for supporting the filter assembly.
In the filter core, the lower extreme of filter flask be equipped with the storage tank of the pressure structure looks adaptation of filter core, the lower extreme opening part of filter flask set up in the tank bottom of storage tank, the pressure structure of filter core inlay in the storage tank.
The pressure storage structure of the filter element provided by the utility model has the following beneficial effects:
the pressure storage structure can realize the purpose of the backflushing filter element without depending on a filter element structure, can be applied to an RO membrane filter element and a rear filter element, and has higher universality, thereby reducing the development cost and the die cost of enterprises.
Drawings
The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is an exploded schematic view of one embodiment of the present invention;
FIG. 3 is a schematic internal view of a normal water production process in accordance with one embodiment of the present invention;
FIG. 4 is a schematic internal view of the present invention illustrating the stopping of water production in accordance with one embodiment of the present invention;
FIG. 5 is a schematic internal view of a normal water production process according to another embodiment of the present invention;
FIG. 6 is a schematic internal view of another embodiment of the present invention illustrating water production stopped;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
in the drawings: the filter element upper cover 2, the filter component 3 and the filter flask 4;
an upper gas tank cover 11, a lower gas tank cover 12 and an elastic membrane 13; a first cavity 14, a second cavity 15; a raw water inlet 21, a pure water outlet 22 and a wastewater outlet 23; a water collecting pipe 31, a filter membrane structure 32, a filter membrane upper cover 33, a raw water inlet 34, a first water isolating ring 35 and a second water isolating ring 36; a support convex ring 41, a containing groove 42 and a connecting hole 40;
a gas tank water inlet 111, a positioning convex ring 112 and an air tap 121.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inner", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a pressure storage structure of a filter element, including a gas tank upper cover 11, a gas tank lower cover 12 and an elastic membrane;
the upper gas tank cover 11 is arranged at the upper end of the lower gas tank cover 12, an accommodating space is formed between the upper gas tank cover 11 and the lower gas tank cover 12, the edge of the elastic membrane is tightly pressed between the upper gas tank cover 11 and the lower gas tank cover 12, and the accommodating space is divided into a first accommodating cavity 14 and a second accommodating cavity 15 by the elastic membrane; the gas tank upper cover 11 is provided with a gas tank water inlet 111, and the gas tank water inlet 111 is used for being connected with an external filter element.
The gas tank upper cover 11 and the elastic membrane 13 form a first containing cavity 14, the gas tank lower cover 12 and the elastic membrane 13 form a second containing cavity 15, in a specific embodiment, the second containing cavity 15 is filled with gas, when water is normally produced, pure water produced by partial filtration enters the first containing cavity 14, the elastic membrane 13 is deformed, and the gas in the second containing cavity 15 is compressed, so that a pressure storage function is realized.
When the pure water outlet end of the filter element is closed, pure water cannot be discharged from the pure water outlet 22, but at the moment, the pressure on the water path of the filter element still does not trigger the pressure increasing valve, so that tap water still continues to flow into the filter element, new pure water is continuously generated by the filter element, the pressure in the filter element is increased, and the pure water is extruded into the first accommodating cavity 14; since the pressure in the first chamber 14 is greater than the pressure in the second chamber 15, the elastic membrane 13 continues to deform and further compresses the gas in the second chamber 15. When the pressure on the water path of the filter element triggers the pressure increasing valve, pure water is not generated, the pressure of the first containing cavity 14 is not increased, and the gas in the second containing cavity 15 gradually recovers the original volume, so that the elastic membrane 13 gradually recovers the original shape; pure water in the first chamber 14 begins reverse flow under the pressure effect of elastic membrane 13, gets into filter component 3 from first chamber 14, and reverse filter component 3 of passing through to erode filter component 3, avoid the long-time standby behind the filter core TDS value of its anterior segment play water of meeting higher problem.
The pressure storage structure can realize the purpose of the backflushing filter element without depending on a filter element structure, can be applied to an RO membrane filter element and a rear filter element, and has higher universality, thereby reducing the development cost and the die cost of enterprises.
Optionally, a positioning convex ring 112 is arranged on the periphery of the gas tank water inlet 111, and the lower end of the filter element is inserted into the positioning convex ring 112. By adopting the structure, the filter element can be tightly inserted into the positioning convex ring 112, thereby avoiding the water leakage phenomenon.
Specifically, the bottom surface of the gas tank lower cover 12 is provided with a gas nozzle 121, and the gas nozzle 121 is used for inflating the elastic membrane 13. The user can detect the air pressure in the air tank through the air tap 121, and can also realize the operation of pressurizing or depressurizing the air tank through the air tap 121. Through the air tap 121, a user can conveniently inflate the elastic membrane 13, so that the elastic membrane 13 can obtain enough air pressure after the filter element is assembled; certainly, in the process of long-term use, a certain air leakage phenomenon may also exist in the elastic membrane 13, when the elastic membrane 13 leaks air, the pressure of the elastic membrane 13 is reduced, so that the back washing effect on the filter element is affected, at this time, the elastic membrane 13 can be inflated again through the needle valve, so that the elastic membrane 13 is ensured to have sufficient air pressure.
In a specific embodiment, the elastic membrane 13 is a membrane, the gas tank upper cover 11 and the gas tank lower cover 12 are welded by ultrasonic welding, and the gas tank upper cover 11 and the gas tank lower cover 12 clamp the elastic membrane 13.
The gas tank upper cover 11 and the gas tank lower cover 12 are connected in an ultrasonic welding mode, the elastic membrane 13 is clamped by the gas tank upper cover 11 and the gas tank lower cover 12, the elastic membrane 13 is tightened between the gas tank upper cover 11 and the gas tank lower cover 12, and the elastic membrane 13 is deformed to realize a pressure storage function.
The utility model also provides a filter element, which comprises a filter element upper cover 2, a filter component 3, a filter flask 4 and a pressure storage structure of the filter element, wherein the filter element upper cover 2 is detachably connected to the upper end of the filter flask 4, and the filter component 3 is placed in the filter flask 4; the bottom of the filter flask 4 is provided with a connecting hole 40;
the filter element upper cover 2 is provided with a raw water inlet 21 and a pure water outlet 22; the raw water inlet 21 is communicated with the inside of the filter flask 4; the pure water outlet 22 is connected with the pure water outlet end of the filter component 3; the lower end of the filter assembly 3 communicates with the connection hole 40 and is connected to the gas tank inlet 111.
In one embodiment, the filter assembly 3 is a rear activated carbon filter element, the filter element is installed in a water path system, the water path system further includes a pressure boosting device, a high-voltage switch, a water outlet pipe, an RO membrane filter element and a water intake device, and a water outlet end of the pressure boosting device is communicated with the raw water inlet 21. As one of the embodiments, the supercharging device is a booster pump. The raw water inlet 21 of the filter element is connected with the water filtering and discharging end of the RO membrane, the water taking device is connected with the pure water outlet 22 of the filter element through a water outlet pipe, the high-voltage switch is arranged between the water taking device and the pure water outlet 22, and the high-voltage switch is electrically connected with the supercharging device.
Referring to fig. 3, during normal water production, the waterway system pumps the running water into the RO membrane filter element through the pressurizing device, so that filtered water generated by the RO membrane filter element enters the interior of the filter flask 4 from the raw water inlet 21; subsequently, the tap water passes through the inner wall of the filter unit 3 from the outer wall of the filter unit 3, and is filtered into pure water; a part of the pure water flows upward and is discharged through the pure water outlet 22; another part of the pure water flows downward and enters the first chamber 14, and the first chamber 14 stores the part of the pure water; the elastic membrane 13 is deformed by the pressure of the pure water and compresses the gas in the second receiving chamber 15.
When the water making device is closed, the supercharging device continues to work, so that the RO membrane filter element can continue to make water, filtered water continuously flows into the filter element, but pure water in the filter element cannot be discharged from the pure water outlet 22, and the pressure of the water outlet pipe is gradually increased; at the moment, the pressure of the water outlet pipe still does not reach the threshold value of the high-pressure switch, so that filtered water generated by the RO membrane filter element still continuously flows in from the raw water inlet 21, and new pure water is continuously generated and extruded into the first cavity 14; since the pressure of the first chamber 14 is greater than the pressure of the second chamber 15, the elastic membrane continues to deform downward and further compresses the gas in the second chamber 15, thereby storing the pressure.
Referring to fig. 4, when the pressure of the water outlet pipe reaches the threshold value of the high-pressure switch, the high-pressure switch controls the pressurizing device to be closed, and at this time, raw water does not enter the RO membrane filter element any more, so that the pre-membrane pressure of the RO membrane becomes lower, which causes the post-membrane pressure of the RO membrane to be greater than the pre-membrane pressure of the RO membrane, and the gas in the second cavity 15 gradually returns to the original volume, so that the elastic membrane gradually returns to the original shape; pure water in the first cavity 14 starts to reversely flow under the pressure action of the elastic membrane, and the pure water in the first cavity 14 starts to reversely flow under the pressure action of the elastic membrane 13 and flows to the outer wall of the filter component 3 from the inner wall of the filter component 3, so that the aim of reversely passing through the filter component 3 and flushing the filter component 3 is fulfilled; and then, the pure water flowing reversely enters the RO membrane filter element from the water outlet end of the filtered water, reversely flushes the RO membrane component and is finally discharged from the wastewater end of the RO membrane component.
When filter core system water, elastic membrane 13 warp and storage pressure, release pressure during the standby to realize the back flush filter core, the problem of pure water remaining in the filter core and mixing with the raw water and causing the pollution when avoiding the standby.
Specifically, the filtering component 3 is an activated carbon filter element or an RO membrane filter element.
Further, the filter element upper cover 2 is also provided with a waste water outlet 23, and the waste water outlet 23 is connected with the waste water outlet end of the filter assembly 3.
In another embodiment, the cartridge may be an RO membrane cartridge. Referring to fig. 7, the RO membrane cartridge includes a water collecting pipe 31, a filter membrane structure 32, and a filter membrane upper cover 33; the top surface of the filter membrane structure 32 is a raw water inlet end of the RO membrane filter element, and the bottom surface of the filter membrane structure 32 is a waste water outlet end of the RO membrane filter element; the filter membrane upper cover 33 is provided with a raw water inlet 34, the filter membrane upper cover 33 is arranged on the top surface of the filter membrane structure 32, a first water-proof ring 35 and a second water-proof ring 36 are sequentially arranged on the bottom surface of the filter element upper cover 2 from outside to inside, the first water-proof ring 35 is matched with the raw water inlet 34, the second water-proof ring 36 is matched with the water collecting pipe 31 to play a role in separating raw water, pure water and waste water, and the phenomenon of water mixing is prevented. The raw water inlet 34 is communicated with the raw water inlet 21, the upper end of the water collecting pipe 31 of the RO membrane filter element is communicated with the pure water outlet 22, the lower end of the water collecting pipe 31 is inserted into the through connecting hole 40 and is connected with the pressure storage structure of the filter element, and the wastewater outlet end of the RO membrane filter element is communicated with the wastewater outlet 23.
The filter core of this embodiment is installed in waterway system, still includes supercharging device, high-voltage switch, outlet pipe and water intake device among the waterway system, supercharging device's play water end with raw water inlet 21 intercommunication, waterway system pass through supercharging device with raw water pump income RO membrane filter core for the hydroenergy that gets into in the RO membrane filter core can have sufficient pressure and pass the RO membrane. As one of the embodiments, the supercharging device is a booster pump. The water taking device is connected with the pure water outlet 22 through a water outlet pipe, the high-voltage switch is arranged between the water taking device and the pure water outlet 22, and the high-voltage switch is electrically connected with the supercharging device.
Referring to fig. 5, during normal water production, tap water enters the filter flask 4 from the raw water inlet 21, enters the inside of the RO membrane filter element, and is filtered into pure water, and the pure water is collected in the water collecting pipe 31; the wastewater generated by the filtration of the filter membrane structure 32 is discharged from the wastewater outlet 23; a part of the pure water flows upward, passes through the water collecting pipe 31, and is discharged from the pure water outlet 22; the elastic membrane divides the gas tank into a first cavity 14 and a second cavity 15, the other part of pure water flows downwards and enters the first cavity 14 through the lower end of the water collecting pipe 31, and the first cavity 14 stores the part of pure water; the elastic membrane is deformed by the pressure of the pure water and compresses the gas in the second receiving chamber 15.
When the water making device is closed, the supercharging device continues to work, so that the RO membrane filter element can continue to make water, pure water cannot be discharged from the pure water outlet 22, the pressure of the water outlet pipe is gradually increased, but at the moment, the pressure of the water outlet pipe still does not reach the threshold value of the high-pressure switch, tap water still continues to flow in from the raw water inlet 21, new pure water is continuously generated, the pressure in the water collecting pipe 31 is increased, and the pure water is squeezed into the first accommodating cavity 14; since the pressure of the first chamber 14 is greater than the pressure of the second chamber 15, the elastic membrane continues to deform downward and further compresses the gas in the second chamber 15, thereby storing the pressure.
Referring to fig. 6, when the pressure of the water outlet pipe reaches the threshold value of the high-pressure switch, the high-pressure switch controls the pressurizing device to be closed, and at this time, the raw water does not enter the filter membrane structure 32 any more, so that the pre-membrane pressure of the RO membrane is reduced, the post-membrane pressure of the RO membrane is greater than the pre-membrane pressure of the RO membrane, and the gas in the second cavity 15 gradually returns to the original volume, so that the elastic membrane gradually returns to the original shape; the pure water in the first chamber 14 starts to flow reversely under the pressure of the elastic membrane, enters the filter membrane structure 32 from the water collecting pipe 31, flushes the filter membrane structure 32 reversely, is discharged from the waste water end of the filter membrane structure 32, and finally leaves the RO membrane filter element from the waste water outlet 23.
Furthermore, a supporting convex ring 41 is arranged on the inner side of the lower end opening of the filter flask 4, and the supporting convex ring 41 is used for supporting the filter assembly 3. The supporting convex ring 41 plays a role in supporting the filtering component 3, so that the lower end of the filtering component 3 can be suspended, the surface area of the filtering component 3 is increased, and the efficiency of discharging waste water from the lower end of the waste water in the filtering component 3 can be improved.
Preferably, the lower end of the filter flask 4 is provided with a containing groove 42 matched with the pressure storage structure of the filter element, the lower end opening of the filter flask 4 is arranged at the bottom of the containing groove 42, and the pressure storage structure of the filter element is embedded in the containing groove 42. By adopting the structure, the movable space of the pressure storage structure of the filter element can be reduced, and the problem of water leakage caused by the reduction of the tightness of the pressure storage structure of the filter element and the opening at the lower end of the filter bottle 4 is avoided.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art without the exercise of inventive faculty based on the explanations herein, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides a pressure storage structure of filter core which characterized in that: comprises an upper cover of the gas tank, a lower cover of the gas tank and an elastic membrane;
the upper gas tank cover is arranged at the upper end of the lower gas tank cover, an accommodating space is formed between the upper gas tank cover and the lower gas tank cover, the edge of the elastic membrane is tightly pressed between the upper gas tank cover and the lower gas tank cover, and the accommodating space is divided into a first accommodating cavity and a second accommodating cavity by the elastic membrane; the gas tank upper cover is provided with a gas tank water inlet, and the gas tank water inlet is used for being connected with an external filter element.
2. A pressure storage structure for a filter cartridge according to claim 1, wherein: and a positioning convex ring is arranged on the periphery of the water inlet of the gas tank, and the lower end of the filter element is inserted into the positioning convex ring.
3. A pressure storage structure for a filter cartridge according to claim 1, wherein: and an air tap is arranged on the bottom surface of the lower cover of the air tank and used for inflating the elastic membrane.
4. A pressure storage structure for a filter cartridge according to claim 1, wherein: the elastic membrane is in a membrane shape, the gas tank upper cover and the gas tank lower cover are welded through ultrasonic waves, and the gas tank upper cover and the gas tank lower cover clamp the elastic membrane.
5. A filter cartridge, characterized in that: the pressure storage structure comprises a filter element upper cover, a filter assembly, a filter flask and the filter element as claimed in any one of claims 1 to 4, wherein the filter element upper cover is detachably connected to the upper end of the filter flask, and the filter assembly is placed in the filter flask; the bottom of the filter flask is provided with a connecting hole;
the filter element upper cover is provided with a raw water inlet and a pure water outlet; the raw water inlet is communicated with the interior of the filter flask; the pure water outlet is connected with the pure water outlet end of the filtering component; the lower end of the filtering component is communicated with the connecting hole and is connected with the water inlet of the air tank.
6. The filter cartridge of claim 5, wherein: the filtering component is an activated carbon filter element or an RO membrane filter element.
7. The filter cartridge of claim 5, wherein: the filter element upper cover is also provided with a waste water outlet, and the waste water outlet is connected with the waste water outlet end of the filter assembly.
8. The filter cartridge of claim 6, wherein: the inner side of the lower end opening of the filter flask is provided with a supporting convex ring, and the supporting convex ring is used for supporting the filter assembly.
9. The filter cartridge of claim 5, wherein: the lower extreme of filter flask be equipped with the storage tank of the pressure structure looks adaptation of filter core, the lower extreme opening part of filter flask set up in the tank bottom of storage tank, the pressure structure of filter core inlay in the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120996659.2U CN216236162U (en) | 2021-05-11 | 2021-05-11 | Pressure storage structure of filter element and filter element using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120996659.2U CN216236162U (en) | 2021-05-11 | 2021-05-11 | Pressure storage structure of filter element and filter element using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216236162U true CN216236162U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120996659.2U Active CN216236162U (en) | 2021-05-11 | 2021-05-11 | Pressure storage structure of filter element and filter element using same |
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| Country | Link |
|---|---|
| CN (1) | CN216236162U (en) |
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2021
- 2021-05-11 CN CN202120996659.2U patent/CN216236162U/en active Active
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