RO filter element with integrated booster pump and water purification system thereof

Abstract

The present application relates to an RO filter element integrated with a booster pump and a water purification system thereof. The RO filter element integrated with a booster pump comprises: a housing; a pump body, which is arranged in the housing, and a cavity is provided between the pump body and the housing; a filter membrane, which is arranged between the pump body and the housing and separates the cavity between the pump body and the housing to form a mutually independent pressure chamber, a wastewater chamber and a pure water chamber, wherein the pressure chamber and the wastewater chamber are respectively located at both ends of the filter membrane; the liquid flows into the pressure chamber through the water outlet of the pump body, and the water inlet, the wastewater chamber and the pure water chamber of the pump body are respectively connected to the outside of the housing. The RO filter element disclosed in the present application has the effects of small space occupation, low noise and high integration.

Description

Technical Field

[0001] The present application relates to the field of filtering devices, and in particular to an RO filter element integrated with an RO pump and a water purification system thereof. Background Art

[0002] RO pump is a device used to pump water out with pressure booster. It is usually used in conjunction with RO filter element to meet the water inlet pressure required by RO filter element filtration. Due to the reverse osmosis principle of RO filter element, water is usually divided into two paths after entering the RO filter element and sent out of the RO filter element. One path is the pure water obtained after purification and filtration, and the other path is the concentrated wastewater that cannot pass through the RO filter element.

[0003] In a traditional water purifier, the RO pump and the RO filter element are usually two different modules. The water pressurized by the RO pump is pumped into each RO filter element through a pipe. However, this setting method takes up a large space and is also relatively cumbersome during the installation of the RO pump and the connection with the RO filter element. Summary of the invention

[0004] In order to reduce the overall space occupied, the present application provides an RO filter element and a water purification system thereof with an integrated booster pump.

[0005] In the first aspect, the present application provides an RO filter element with an integrated booster pump, which adopts the following technical solution:

[0006] An RO filter element with an integrated booster pump, comprising:

[0007] case;

[0008] A pump body is disposed in the housing, and a cavity is provided between the pump body and the housing;

[0009] A filter membrane is disposed between the pump body and the housing and separates the cavity between the pump body and the housing to form a pressure chamber, a wastewater chamber and a pure water chamber that are independent of each other, wherein the pressure chamber and the wastewater chamber are located at two ends of the filter membrane respectively;

[0010] The liquid flows into the pressure chamber through the water outlet of the pump body, and the water inlet, the waste water chamber and the pure water chamber of the pump body are respectively connected to the outside of the shell.

[0011] By adopting the above technical solution, by integrating the RO pump into the RO filter element, the space occupied in the water purifier is reduced on the one hand, and on the other hand, the installation of the RO pump and the RO filter element is also convenient, and there is no need to connect the pipes between the RO pump and the RO filter element. At the same time, when the RO pump is used for too long and its diaphragm is broken and leaks water, it will not leak like the traditional installation method. As long as the shell does not leak, the internal water will not leak into the external environment.

[0012] Preferably, the space occupied by the pressure chamber, the wastewater chamber and the filter membrane is distributed around the pump body.

[0013] Preferably, the filter membrane is wrapped around the outer circumference of the pump body, and the pressure chamber and the wastewater chamber are respectively located at two axial ends of the pump body.

[0014] By adopting the above technical solution, the RO pump will vibrate and make a lot of noise when working. By distributing the space occupied by the pressure chamber, wastewater chamber and filter membrane around the pump body, the pump body can be effectively isolated from the external environment. At the same time, since the filter membrane has a certain energy absorption effect, and there is always water in the pressure chamber and wastewater chamber, the water can also absorb part of the energy. Therefore, this setting can effectively reduce the noise and vibration generated by the filter element as a whole.

[0015] Preferably, a ring plate extending along the axial direction of the pump body is provided circumferentially at one end of the water outlet of the pump body.

[0016] By adopting the above technical solution, this arrangement can increase the volume of the pressure chamber and increase the distance between the pump body and the outer surface of the shell, thereby enhancing the noise reduction effect of the pump body.

[0017] Preferably, the pure water chamber is located between the side wall of the filter membrane and the pump body, and the outer surface of the pump body is recessed inward to form the pure water chamber.

[0018] By adopting the above technical solution, this arrangement simplifies the design and construction of the pure water chamber and facilitates production.

[0019] Preferably, the outer shell of the pump body is provided with a wastewater passage connecting the wastewater chamber with the outside of the shell along the axial direction of the pump body.

[0020] Preferably, the water inlet, the waste water chamber and the pure water chamber are all connected at the same axial end of the shell.

[0021] By adopting the above technical solution, the pipeline distribution when the filter element is connected to the water purifier is facilitated, and the corresponding connection port can be integrated on the base connecting the water purifier and the filter element, so that the filter element can be connected by common methods such as rotating card connection, which is highly efficient and simple in structure.

[0022] Preferably, the outer shell of the pump body is provided with an electric wire channel connected to the inner cavity of the pump body, and the electric wire channel extends to a side away from the inner cavity of the pump body and is connected to the outside of the shell.

[0023] Preferably, the wire channel, water inlet, waste water chamber and pure water chamber are all connected at the same axial end of the shell.

[0024] By adopting the above technical solution, the pipeline distribution when the filter element is connected to the water purifier is facilitated, and the corresponding connection port can be integrated on the base connecting the water purifier and the filter element, so that the filter element can be connected by common methods such as rotating card connection, which is highly efficient and simple in structure.

[0025] In the second aspect, the present application provides a water purification system adopting the following technical solution:

[0026] A water purification system comprises the RO filter element as described above.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Small space occupation and high integration;

[0029] 2. Less noise and vibration;

[0030] 3. Easy to install and connect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional schematic diagram of the RO filter element in one direction, specifically showing the structure of the pure water chamber and the wastewater chamber.

[0032] Figure 2 It is a schematic diagram of the structure of the pump body.

[0033] Figure 3 It is a cross-sectional view of the RO filter element in one direction, specifically showing the structure of the wire channel.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. Shell; 2. Pump body; 3. Filter membrane; 4. Pressure chamber; 5. Wastewater chamber; 6. Pure water chamber; 21. Water inlet; 22. Water outlet; 23. Casing; 24. Drive motor; 25. Booster assembly; 7. Ring plate; 26. Recessed groove; 6a. Pure water pipe; 6b. Pure water outlet; 5a. Wastewater pipe; 5b. Wastewater outlet; 5c. Wastewater passage; 21a. Water inlet pipe; 21b. Water inlet; 8. Wire channel; 8a. Wire pipe; 8b. Wire outlet. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The present application discloses an RO filter element with an integrated booster pump. Figure 1, the RO filter element includes a housing 1, a pump body 2 and a filter membrane 3. The pump body 2 is built into the housing 1, and there is a cavity between the surrounding of the pump body 2 and the inner wall of the housing 1. The filter membrane 3 is arranged between the pump body 2 and the housing 1 and separates the cavity between the pump body 2 and the housing 1 to form a mutually independent pressure chamber 4, a wastewater chamber 5 and a pure water chamber 6. The water inlet 21 of the pump body 2, the wastewater chamber 5 and the pure water chamber 6 are respectively connected to the outside of the housing 1. The pressure chamber 4 is connected to the water outlet 22 of the pump body 2, and water enters the pump body 2 through the water inlet 21. The pump body 2 is pumped into the pressure chamber 4 after pressurizing the water. Under the high pressure of the pressure chamber 4, the water realizes reverse osmosis and enters the pure water chamber 6 after passing through the filter membrane 3, and the concentrated wastewater enters the wastewater chamber 5. Among them, the filter membrane 3 in the embodiment of the present application is selected as an RO membrane.

[0037] In one embodiment, the pump body 2 includes a housing 23, a driving motor 24 disposed in the housing 23, and a booster assembly 25 controlled by the driving motor 24. The booster assembly 25 separates one end of the pump body 2 into a water inlet chamber and a water outlet chamber, wherein the water inlet chamber corresponds to the water inlet 21 of the pump body 2, and the water outlet chamber corresponds to the water outlet 22 of the pump body 2. Under the rotation of the driving motor 24, the booster assembly 25 continuously pressurizes the water in the water inlet chamber and pumps it out of the water outlet 22 through the water outlet chamber.

[0038] Due to the reverse osmosis characteristics of the RO membrane, water with higher pressure usually enters from one end of the filter membrane 3, while pure water is filtered out along the thickness direction of the filter membrane 3, and the concentrated wastewater flows out through the other end of the filter membrane 3. Therefore, in view of this characteristic, the RO membrane is wound into a roll and sleeved on the outer circumference of the outer shell 23 of the pump body 2, and the inner and outer walls of the filter membrane 3 are respectively pressed against the housing 1 and the outer shell 23 of the pump body 2. The pressure chamber 4 and the wastewater chamber 5 are respectively located at the axial ends of the filter membrane 3, and the pure water chamber 6 is located on the circumferential side wall of the outer shell 23 of the pump body 2.

[0039] On this basis, there is a gap between the axial ends of the outer shell 23 of the pump body 2 and the inner surface of the axial ends of the housing 1, so it can be seen that the pressure chamber 4 and the wastewater chamber 5 are respectively located at the axial ends of the pump body 2, and the space occupied by the pressure chamber 4, the wastewater chamber 5 and the filter membrane 3 is distributed around the pump body 2 (that is, distributed in all directions of the space occupied by the pump body 2). In this embodiment, part of the energy of the vibration generated by the booster component 25 and the drive motor 24 will be weakened by the pressure chamber 4, the wastewater chamber 5 and the filter membrane 3, thereby reducing the vibration and noise generated by the RO filter element as a whole.

[0040] In the above embodiment, the axial length of the filter membrane 3 is close to the axial length of the outer shell 23 of the pump body 2, so that the pressure chamber 4 and the wastewater chamber 5 are distributed at the axial ends of the pump body 2. However, it is not limited to the above embodiment, the length of the filter membrane 3 can also be shortened to be shorter than the axial length of the outer shell 23 of the pump body 2, so that in this embodiment, the pressure chamber 4 and the wastewater chamber 5 can also be partially distributed in the circumferential direction of the pump body 2.

[0041] In addition, for example in Figure 1 and Figure 2 In the embodiment shown, the noise reduction effect on the pump body 2 can also be improved by increasing the volume of the pressure chamber 4 while meeting the requirement of the axial length of the filter membrane 3. Among them, a ring plate 7 extending along the axial direction of the pump body 2 is integrally provided at the circumference of one end of the water outlet 22 of the pump body 2. In one embodiment, the end face of the ring plate 7 is flush with the end face of the filter membrane 3. Therefore, in this embodiment, when the distance between the end face of the filter membrane 3 and the inner end face of the housing 1 is short, a large distance can still be maintained between the end face of the water outlet 22 of the pump body 2 and the inner end face of the housing 1.

[0042] Continue to refer to Figure 1 and Figure 2 The outer surface of the pump body 2 has an inwardly recessed groove 26, and the recessed groove 26 cooperates with the inner surface of the filter membrane 3 to form a pure water chamber 6 for pure water to circulate. The pure water chamber 6 extends toward one end of the pump body 2 and is connected to the outside of the shell 1. In one embodiment, the pure water chamber 6 extends toward the direction close to the pressure chamber 4, and one end of the outer shell 23 of the pump body 2 is integrally provided with a pure water pipe 6a connected to the pure water chamber 6 and extending into the pressure chamber 4, the other end of the pure water pipe 6a abuts against the inner end surface of the shell 1 and ensures the sealing of the connection between the two, and a pure water port 6b connected to the pure water pipe 6a is correspondingly opened on the shell 1.

[0043] In one embodiment, the outer shell 23 of the pump body 2 is provided with a wastewater passage 5c connecting the wastewater chamber 5 and the outside of the shell 1 along the axial direction of the pump body 2, so in this embodiment, the wastewater will flow in the direction of the pressure chamber 4. In order to block the wastewater passage 5c from the pressure chamber 4, a wastewater pipe 5a connected to the wastewater passage 5c and extending into the pressure chamber 4 is integrally provided at one end of the outer shell 23 of the pump body 2, and the other end of the wastewater pipe 5a abuts against the inner end surface of the shell 1 to ensure the sealing of the connection between the two, and a wastewater port 5b connected to the wastewater pipe 5a is correspondingly provided on the shell 1.

[0044] In one embodiment, the housing 1 may also directly open a wastewater hole connected to the wastewater chamber 5 to drain the water in the wastewater chamber 5, and the pure water chamber 6 may also extend in the direction close to the wastewater chamber 5 and be led out of the housing 1 from the other end face of the filter element, that is, the pipelines connecting the chambers can be introduced into or out of the filter element at various places of the outer shell 23 of the filter element. However, since the water inlet 21 and the water outlet 22 of the pump body 2 are usually arranged on one end face close to the booster assembly 25 during the design process, and in order to meet the requirements of the quick connection of the filter element, all the connecting pipelines of the filter element can be arranged at the same end face of the filter element. Therefore, under this design requirement, the water inlet 21 of the pump body 2 is provided with a water inlet pipe 21a integrally connected to the outer shell 23, and the other end of the water inlet pipe 21a passes through the pressure chamber 4 and abuts against the inner end face of the housing 1 to ensure the sealing of the connection between the two, and the housing 1 is provided with a water inlet 21b connected to the water inlet pipe 21a. However, in one embodiment, the water inlet 21 b may also be designed on a portion of the housing 1 close to the waste water chamber 5 .

[0045] Reference Figure 1 and Figure 3 Since the pump body 2 needs to be powered externally, based on the above-mentioned design requirements, the external power port for supplying power to the pump body 2 can also be correspondingly arranged on the same end face of the filter element. Correspondingly, the outer shell 23 of the pump body 2 is provided with a wire channel 8 connected to the inner cavity of the pump body 2. The wire channel 8 extends to the side away from the inner cavity of the pump body 2, and a wire tube 8a connected to the wire channel 8 is integrally arranged on the end face of the outer shell 23 of the pump body 2. The wire tube 8a passes through the pressure chamber 4 and then abuts against the inner end face of the shell 1, and the part where the end face of the wire tube 8a abuts against the shell 1 remains sealed, and a wire port 8b connected to the wire tube 8a is correspondingly opened on the shell 1.

[0046] Taking the figure as an example, the filter element disclosed in the embodiment of the present application is connected to the pure water machine by a rotating snap-on connection. Therefore, it can be known that the wire port 8b can be correspondingly constructed as a quick-plug connector structure to meet the above requirements, and the wire port 8b, the water inlet 21b, the pure water port 6b and the waste water port 5b are all constructed as tubular structures extending outward on the end face of the housing 1. However, it is not limited to the implementation method disclosed in the accompanying drawings. The wire port 8b, the water inlet 21b, the pure water port 6b and the waste water port 5b can also be constructed in the form of grooves and connected by inserting the corresponding tubular structure on the pure water machine. In addition, the connection between the filter element and the pure water machine can also be constructed as a straight-plug connection.

[0047] The present application also discloses a water purification system, which includes the RO filter element in the above embodiment. The RO filter element can be applied to a pure water machine to form the water purification system without the need for an external booster pump. The water inlet 21b of the RO filter element is connected to a tap water pipe, and the water derived from the pure water outlet 6b can be directly used by users.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An RO filter element with an integrated booster pump, characterized in that: include: Housing (1); A pump body (2) is arranged in the housing (1), and a cavity is provided between the pump body (2) and the housing (1); A filter membrane (3) is disposed between the pump body (2) and the housing (1) and separates the cavity between the pump body (2) and the housing (1) to form a pressure chamber (4), a wastewater chamber (5) and a pure water chamber (6) which are independent of each other, wherein the pressure chamber (4) and the wastewater chamber (5) are respectively located at two ends of the filter membrane (3); The liquid flows into the pressure chamber (4) through the water outlet (22) of the pump body (2), and the water inlet (21), the waste water chamber (5) and the pure water chamber (6) of the pump body (2) are respectively connected to the outside of the housing (1); The space occupied by the pressure chamber (4), the wastewater chamber (5) and the filter membrane (3) is distributed around the pump body (2); The filter membrane (3) is wound around the outer circumference of the pump body (2), and the pressure chamber (4) and the wastewater chamber (5) are respectively located at two axial ends of the pump body (2); The outer shell (23) of the pump body (2) is provided with a wastewater passage (5c) along the axial direction of the pump body (2) and connecting the wastewater chamber (5) with the outside of the shell (1).

2. The RO filter element with integrated booster pump according to claim 1, characterized in that: A ring plate (7) extending along the axial direction of the pump body (2) is arranged in the circumferential direction of one end of the water outlet (22) of the pump body (2).

3. The RO filter element with integrated booster pump according to any one of claims 1-2, characterized in that: The pure water chamber (6) is located between the side wall of the filter membrane (3) and the pump body (2), and the outer surface of the pump body (2) is recessed inward to form the pure water chamber (6).

4. The RO filter element with integrated booster pump according to any one of claims 1-2, characterized in that: The water inlet (21), the waste water chamber (5) and the pure water chamber (6) are all connected at the same axial end of the shell (1).

5. The RO filter element integrated with a booster pump according to claim 1, characterized in that: The outer shell (23) of the pump body (2) is provided with an electric wire channel (8) connected to the inner cavity of the pump body (2); the electric wire channel (8) extends to a side away from the inner cavity of the pump body (2) and is connected to the outside of the shell (1).

6. The RO filter element integrated with a booster pump according to claim 5, characterized in that: The electric wire channel (8), the water inlet (21), the waste water chamber (5) and the pure water chamber (6) are all connected at the same axial end of the shell (1).

7. A water purification system, characterized in that: Comprising the RO filter element as described in any one of claims 1-6.

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