CN211871486U

CN211871486U - Reverse osmosis device capable of uniformly utilizing RO (reverse osmosis) membrane

Info

Publication number: CN211871486U
Application number: CN201922121395.1U
Authority: CN
Inventors: 孙吉庆; 詹玮; 武云; 苏传好; 叶汪海
Original assignee: Anhui Resource Saving & Environmental Technology Co ltd
Current assignee: Anhui Resource Saving & Environmental Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-11-06
Anticipated expiration: 2029-11-28

Abstract

The utility model provides an evenly utilize reverse osmosis unit of RO membrane, including drive assembly and by the shell body that sets gradually in to outside, interior casing and reverse osmosis membrane subassembly, leave the clearance formation between shell body and interior casing and be used for the circulation chamber, interior casing first end is equipped with first raw water import, the second end is equipped with first pure water export and the import of second raw water, be equipped with first valve in the import of second raw water, interior casing bottom is equipped with interior dense water export, the first end of shell body is equipped with the import of third raw water, be equipped with the second valve in the import of third raw water, drive assembly drive second valve makes third raw water import and first raw water import or communicate with the circulation chamber, shell body second end is equipped with the second pure water export with first pure water export intercommunication, shell body bottom is equipped with interior dense water export intercommunication with outer dense water export. The utility model discloses but alternative equidirectional intake for the RO membrane of at first handling the raw water can all be regarded as to the membrane at both ends, effectively increases operation rate, reduces and changes the frequency.

Description

Reverse osmosis device capable of uniformly utilizing RO (reverse osmosis) membrane

Technical Field

The utility model relates to a reverse osmosis treatment facility technical field, concretely relates to reverse osmosis unit who evenly utilizes RO membrane.

Background

Reverse Osmosis (RO), also known as Reverse Osmosis, is a membrane separation operation that separates a solvent from a solution using a pressure difference as a driving force, and applies pressure to a feed solution on one side of a membrane, and when the pressure exceeds its osmotic pressure, the solution undergoes Reverse Osmosis against the direction of natural Osmosis. Reverse osmosis technology has been developed to date in 1953, and is applied to various industries such as household drinking water, seawater desalination, petrochemical industry, electric power, semiconductors, medical pharmacy, food and beverage, municipal water supply and the like.

However, in the process of operating the reverse osmosis device, because each pressure vessel is provided with a certain number of RO membranes, the organic contamination of the RO membranes at the water inlet of the pressure vessel is the most serious, the inorganic contamination of the RO membranes at the water outlet of the pressure vessel is the most serious, and the total amount of the contaminants on the surfaces of the RO membranes is gradually increased from the inlet to the outlet, which causes the inconsistent performance recovery conditions after different RO membranes are cleaned with the same amount of water during online cleaning. Therefore, it is very important to find a reverse osmosis device for improving the utilization rate of the RO membrane in order to improve the cleaning effect, reduce the replacement frequency of the RO membrane, and reduce the operation cost.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the background art exists, the utility model provides an evenly utilize reverse osmosis unit of RO membrane.

The utility model provides a reverse osmosis device which uniformly utilizes RO membranes, comprising an outer shell, an inner shell, a reverse osmosis membrane component and a driving component;

the reverse osmosis membrane module is arranged in an inner shell, an inner shell is arranged in the outer shell, a gap is reserved between the outer shell and the inner shell to form a circulation cavity for raw water circulation, a first raw water inlet is formed in a first end of the inner shell, a first pure water outlet and a second raw water inlet are formed in a second end of the inner shell, a first valve for opening and closing the second raw water inlet is arranged in the second raw water inlet, and at least one inner concentrated water outlet for concentrated water to flow out is formed in the bottom of the inner shell;

the first end of shell body is equipped with the import of third former water, be equipped with the second valve in the import of third former water, the drive assembly drive is connected the second valve and is made the import of third former water communicate with first former water import or communicate with the runner cavity with the drive second valve, shell body second end is equipped with the export of second pure water, first pure water export passes through the pipeline intercommunication with the export of second pure water, the shell body bottom is equipped with at least one outer dense water export that is used for dense water outflow, interior dense water export and outer dense water export pass through the pipeline intercommunication.

Preferably, the reverse osmosis membrane component comprises a reverse osmosis membrane piece and a water guide pipe, a first sealing ring is arranged between the first end of the reverse osmosis membrane piece and the corresponding position of the inner wall of the inner shell, and a second sealing ring is arranged between the second end of the reverse osmosis membrane piece and the corresponding position of the inner wall of the inner shell;

the first end of the water guide pipe is communicated with the first raw water inlet, the second end of the water guide pipe penetrates through the reverse osmosis membrane piece and is communicated with the first pure water outlet, and a water baffle is arranged in the water guide pipe between the first end of the inner shell and the first sealing ring;

a water outlet hole is formed in the water guide pipe between the first end of the inner shell and the water baffle, a water collecting hole is formed in the water guide pipe between the first sealing ring and the second sealing ring, and the inner concentrated water outlet is formed in the bottom of the inner shell between the first sealing ring and the second sealing ring.

Preferably, the number of the inner concentrated water outlets is two, and the two inner concentrated water outlets are arranged from the first end to the second end of the inner shell;

the number of the outer concentrated water outlets is two, the two inner concentrated water outlets are communicated with the two outer concentrated water outlets in a one-to-one correspondence mode, and third valves used for controlling the on-off of the outer concentrated water outlets are arranged in the outer concentrated water outlets respectively.

Preferably, the second valve comprises a shell, a first disc and a second disc, the shell is arranged in the third water inlet, the first disc and the second disc are sequentially and coaxially arranged in the shell from outside to inside, the periphery of the second disc is fixedly connected with the inner wall of the shell, and the first disc is rotatably attached to the second disc;

a first circular path and a second circular path are arranged on the second disc from the circle center in a radial direction and are concentric with each other, a plurality of first through holes are arranged on the first circular path, a plurality of second through holes are arranged on the second circular path, the first through holes are communicated with the first raw water inlet, and the second through holes are communicated with the circulation cavity;

a third circular path and a fourth circular path are arranged on the first disc from the circle center radially and concentrically with each other, a plurality of third through holes are arranged on the third circular path, a plurality of fourth through holes are arranged on the fourth circular path, the diameter of the first circular path is the same as that of the third circular path, and the diameter of the second circular path is the same as that of the fourth circular path;

the driving assembly is connected with the first disc in a driving mode so as to drive the first disc to rotate, when the third through hole is communicated with the first through hole, the fourth through hole is not communicated with the second through hole, and when the fourth through hole is communicated with the second through hole, the third through hole is not communicated with the first through hole.

Preferably, a first annular groove is formed in the peripheral side of the first disc along the circumferential direction, an annular protrusion matched with the first annular groove is arranged at a position, corresponding to the first disc, of the inner wall of the shell, a second annular groove is formed in the circumferential direction of the annular protrusion, an annular sealing ring is arranged in the second annular groove, and the first annular groove is connected with the annular protrusion in a sliding mode.

Preferably, the periphery of the first end of the first disc is circumferentially provided with external teeth, the driving assembly comprises a motor, a driving gear and a chain, an output shaft of the motor is fixedly connected with the driving gear, and the driving gear is in transmission connection with the external teeth of the first disc through the chain.

Preferably, the first valve is a solenoid valve.

Preferably, the system also comprises a raw water inlet pipe, one end of the water inlet pipe is communicated with a water source, the other end of the water inlet pipe is communicated with a third raw water inlet, and a fourth valve for controlling the on-off of the raw water inlet pipe is arranged on the raw water inlet pipe.

Compared with the prior art, the utility model discloses the setting is at the external shell body of inner shell, first raw water import and second raw water import are seted up respectively to interior casing both ends, the second valve of setting the first end of outer shell, the second valve can make third raw water import and first raw water import intercommunication or with second raw water import intercommunication in order to reach selectively from equidirectional intaking, and switch this reverse osmosis unit's rivers direction through drive assembly drive second valve, make the RO membrane that this reverse osmosis unit both ends all can regard as at first handling reverse osmosis and intake, thereby effectively improved the utilization ratio of RO membrane, the change frequency of RO membrane has been reduced.

Drawings

Fig. 1 is a schematic structural diagram of a reverse osmosis device uniformly utilizing an RO membrane according to the present invention.

Fig. 2 is a schematic structural diagram of a reverse osmosis apparatus for uniformly utilizing an RO membrane according to the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic structural diagram of the first disc of the present invention.

Fig. 5 is a schematic structural diagram of a second disc according to the present invention.

Reference numerals:

1-outer shell 2-inner shell 3-reverse osmosis membrane 4-second sealing ring 5-water guide pipe

6-support 7-third valve 8-first valve 9-second disk 10-first disk

11-raw water inlet pipe 12-first sealing ring

Detailed Description

Referring to fig. 1 and 2, the utility model provides a reverse osmosis device for uniformly utilizing an RO membrane, which comprises an outer shell 1, an inner shell 2, a reverse osmosis membrane module and a driving module;

the reverse osmosis membrane module is arranged in an inner shell 2, the inner shell 2 is arranged in an outer shell 1, a gap is reserved between the outer shell 1 and the inner shell 2 to form a circulation cavity for raw water circulation, a first raw water inlet is formed in a first end of the inner shell 2, a first pure water outlet and a second raw water inlet are formed in a second end of the inner shell, a first valve 8 for opening and closing the second raw water inlet is arranged in the second raw water inlet, and at least one inner concentrated water outlet for concentrated water to flow out is formed in the bottom of the inner shell 2;

the first end of shell body 1 is equipped with the import of third former water, be equipped with the second valve in the import of third former water, the drive assembly drive is connected the second valve and is made the import of third former water communicate with first former water import or communicate with the runner cavity with the drive second valve, shell body 1 second end is equipped with the export of second pure water, first pure water export passes through the pipeline intercommunication with the export of second pure water, shell body 1 bottom is equipped with at least one outer dense water export that is used for dense water outflow, interior dense water export and outer dense water export pass through the pipeline intercommunication.

The utility model can lead the third raw water inlet to be communicated with the first raw water inlet or communicated with the circulation cavity and the second raw water inlet through the second valve so as to achieve the purpose of selectively feeding water from different directions, when the third raw water inlet is communicated with the first raw water inlet, the raw water enters the inner shell 2 through the third raw water inlet and the first raw water inlet, the pure water processed by the reverse osmosis membrane module is discharged through the first pure water outlet and the second pure water outlet, and the concentrated water generated after the reverse osmosis membrane module is processed is discharged through the inner concentrated water outlet and the outer concentrated water outlet; when the third raw water inlet is communicated with the circulation cavity, the first valve 8 is opened, raw water flows to the second end of the inner shell 2 through the third raw water inlet and the circulation cavity and enters the inner shell 2 through the second raw water inlet, pure water treated by the reverse osmosis membrane module is discharged through the first pure water outlet and the second pure water outlet, and concentrated water produced after treatment by the reverse osmosis membrane module is discharged through the inner concentrated water outlet and the outer concentrated water outlet. Therefore, when the reverse osmosis membrane on one side of the reverse osmosis membrane piece is polluted seriously, the driving assembly drives the second valve to switch the water flow direction of the reverse osmosis device, so that membranes at two ends of the reverse osmosis device can be used as RO membranes for firstly treating reverse osmosis water inflow, the utilization rate of the RO membranes is effectively improved, and the replacement frequency of the RO membranes is reduced.

In actual use, the inner housing 2 is mounted within the outer housing 1 by means of a bracket 6.

Referring to fig. 2, in order to improve the cleaning effect of the reverse osmosis membrane module, in a specific embodiment, the reverse osmosis membrane module includes a reverse osmosis membrane element 3 and a water guide pipe 5, a first sealing ring 12 is disposed between a first end of the reverse osmosis membrane element 3 and a corresponding position of the inner wall of the inner shell 2, and a second sealing ring 4 is disposed between a second end of the reverse osmosis membrane element and a corresponding position of the inner wall of the inner shell 2;

a first end of the water guide pipe 5 is communicated with a first raw water inlet, a second end of the water guide pipe 5 penetrates through the reverse osmosis membrane and is communicated with a first pure water outlet, and a water baffle is arranged in the water guide pipe 5 between the first end of the inner shell 2 and the first sealing ring 12;

the water guiding pipe 5 between the first end of the inner shell 2 and the water baffle is provided with a water outlet hole, the water guiding pipe 5 between the first sealing ring 12 and the second sealing ring 4 is provided with a water collecting hole, and the inner concentrated water outlet is arranged at the bottom of the inner shell 2 between the first sealing ring 12 and the second sealing ring 4.

When the reverse osmosis membrane type water purifier is used specifically, when a third raw water inlet is communicated with a first raw water inlet, the first valve 8 is closed, raw water enters a first raw water cavity formed between the first sealing ring 12 and the first end of the inner shell 2 through the third raw water inlet, the first raw water inlet and the water guide pipe 5, the raw water then enters a space between the first sealing ring 12 and the second sealing ring 4 through the reverse osmosis membrane piece 3, pure water treated by the reverse osmosis membrane piece 3 passes through the water guide pipe 5 and is discharged through the first pure water outlet and the second pure water outlet, and concentrated water generated after treatment by the reverse osmosis membrane piece 3 is discharged through the inner concentrated water outlet; when the third former water inlet communicates the circulation chamber, open first valve 8, the raw water passes through the third former water inlet and gets into the circulation chamber, the raw water gets into in interior casing 2 through the former water inlet of second after that, second former water chamber has been formed between second sealing washer 4 and the interior casing 2 second end, the raw water gets into between first sealing washer 12 and the second sealing washer 4 through reverse osmosis membrane spare 3, the pure water after reverse osmosis membrane spare 3 handles passes through aqueduct 5 and through first pure water export, second pure water export is discharged, the dense water that produces after reverse osmosis membrane spare 3 handles is through interior dense water outlet discharge. First former water cavity, the former water cavity of second can make in the cleaning process raw water all handle through reverse osmosis membrane spare 3, effectively improve cleaning performance and pure water treatment efficiency.

In order to discharge the concentrate as much as possible, in a further embodiment, the number of the inner concentrate outlets is two, and the two inner concentrate outlets are arranged from the first end to the second end of the inner case 2;

the number of the outer concentrated water outlets is two, the two inner concentrated water outlets are communicated with the two outer concentrated water outlets in a one-to-one correspondence manner, and third valves 7 for controlling the on-off of the outer concentrated water outlets are respectively arranged in the outer concentrated water outlets.

In practical use, when raw water enters through the first raw water inlet at the first end of the inner shell 2, the pressure of the inner concentrated water outlet close to the second end of the inner shell 2 is lower, and concentrated water generated after being treated by the reverse osmosis membrane piece 3 can be quickly discharged through the inner concentrated water outlet close to the second end of the inner shell 2; when raw water enters through a second raw water inlet at the second end of the inner shell 2, the pressure of an inner concentrated water outlet close to the first end of the inner shell 2 is small, and concentrated water generated after being treated by the reverse osmosis membrane piece 3 can be quickly discharged through the inner concentrated water outlet close to the first end of the inner shell 2.

Referring to fig. 3-5, in a specific embodiment, the second valve includes a housing, a first disk 10 and a second disk 9, the housing is disposed in the third water inlet, the first disk 10 and the second disk 9 are coaxially disposed in the housing from outside to inside, the outer periphery of the second disk 9 is fixedly connected to the inner wall of the housing, and the first disk 10 is rotatably attached to the second disk 9;

a first circular path and a second circular path are arranged on the second disc 9 from the circle center in a radial direction and are concentric with each other, a plurality of first through holes are arranged on the first circular path, a plurality of second through holes are arranged on the second circular path, the first through holes are communicated with the first raw water inlet, and the second through holes are communicated with the circulation cavity;

a third circular path and a fourth circular path are arranged on the first disc 10 radially from the circle center and concentrically with each other, a plurality of third through holes are arranged on the third circular path, a plurality of fourth through holes are arranged on the fourth circular path, the diameter of the first circular path is the same as that of the third circular path, and the diameter of the second circular path is the same as that of the fourth circular path;

the driving assembly is in driving connection with the first disc 10 to drive the first disc 10 to rotate, and when the third through hole is communicated with the first through hole, the fourth through hole is not communicated with the second through hole, so that the third raw water inlet is communicated with the first raw water inlet; when the fourth through hole is communicated with the second through hole, the third through hole is not communicated with the first through hole, so that the third raw water inlet is communicated with the circulation cavity.

In actual use, the number of the first through holes is four, four first through holes are arranged at equal intervals along a first circular path, the number of the second through holes is four, four second through holes are arranged at equal intervals along a second circular path, and one first through hole and one second through hole are positioned in the same radial direction; the number of the third through holes is four, the four third through holes are arranged at equal intervals along a third circular path, the number of the fourth through holes is four, the four fourth through holes are arranged at equal intervals along a fourth circular path, and the diameter included angle between each third through hole and the diameter included angle between each adjacent fourth through hole is 45 degrees.

In order to ensure that the first disk 10 is always attached to the second disk 9, in a further specific embodiment, a first annular groove is formed in the circumferential direction of the outer circumferential side of the first disk 10, an annular protrusion matched with the first annular groove is arranged at a position, corresponding to the first disk 10, of the inner wall of the casing, a second annular groove is formed in the circumferential direction of the annular protrusion, an annular sealing ring is arranged in the second annular groove, and the first annular groove is connected with the annular protrusion in a sliding manner. And the annular sealing ring is beneficial to improving the sealing performance between the first disk 10 and the shell.

In order to facilitate the control of the rotation of the first disk 10, in a further specific embodiment, the driving assembly includes a motor, a driving gear and a chain, the outer periphery of the first end of the first disk 10 is provided with external teeth along the circumferential direction, an output shaft of the motor is fixedly connected with the driving gear, and the driving gear is in transmission connection with the external teeth of the first disk 10 through the chain.

In order to facilitate the control of the start and stop of the first valve 8, in a specific embodiment, the first valve 8 is a solenoid valve.

In order to facilitate the control of the raw water inlet, in a specific embodiment, the system further comprises a raw water inlet pipe 11, one end of the inlet pipe is used for being communicated with a water source, the other end of the inlet pipe is communicated with a third raw water inlet, and a fourth valve used for controlling the on-off of the raw water inlet pipe 11 is arranged on the raw water inlet pipe.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A reverse osmosis device which uniformly utilizes an RO membrane is characterized by comprising an outer shell (1), an inner shell (2), a reverse osmosis membrane component and a driving component;

the reverse osmosis membrane module is arranged in an inner shell (2), an inner shell (2) is arranged in an outer shell (1), a gap is reserved between the outer shell (1) and the inner shell (2) to form a circulation cavity for raw water circulation, a first raw water inlet is formed in the first end of the inner shell (2), a first pure water outlet and a second raw water inlet are formed in the second end of the inner shell, a first valve (8) for opening and closing the second raw water inlet is arranged in the second raw water inlet, and at least one inner concentrated water outlet for concentrated water to flow out is formed in the bottom of the inner shell (2);

the first end of shell body (1) is equipped with the import of third former water, be equipped with the second valve in the import of third former water, the drive assembly drive is connected the second valve and is made the import of third former water communicate with first former water import or communicate with the circulation chamber with the drive second valve, shell body (1) second end is equipped with the export of second pure water, pipeline intercommunication is passed through with the export of second pure water to first pure water export, shell body (1) bottom is equipped with at least one outer dense water export that is used for dense water to flow out, interior dense water export and outer dense water export pass through the pipeline intercommunication.

2. The reverse osmosis device for uniformly utilizing the RO membrane according to claim 1, wherein the reverse osmosis membrane module comprises a reverse osmosis membrane (3) and a water guide pipe (5), a first sealing ring (12) is arranged between the first end of the reverse osmosis membrane (3) and the corresponding position of the inner wall of the inner shell (2), and a second sealing ring (4) is arranged between the second end of the reverse osmosis membrane and the corresponding position of the inner wall of the inner shell (2);

the first end of the water guide pipe (5) is communicated with the first raw water inlet, the second end of the water guide pipe (5) penetrates through the reverse osmosis membrane piece and is communicated with the first pure water outlet, and a water baffle is arranged in the water guide pipe (5) between the first end of the inner shell (2) and the first sealing ring (12);

a water outlet hole is formed in the water guide pipe (5) between the first end of the inner shell (2) and the water baffle, a water collecting hole is formed in the water guide pipe (5) between the first sealing ring (12) and the second sealing ring (4), and an inner concentrated water outlet is formed in the bottom of the inner shell (2) between the first sealing ring (12) and the second sealing ring (4).

3. A reverse osmosis apparatus using an RO membrane uniformly, according to claim 1, wherein the number of the inner concentrate outlets is two, and the two inner concentrate outlets are arranged from the first end to the second end of the inner casing (2);

the number of the outer concentrated water outlets is two, the two inner concentrated water outlets are communicated with the two outer concentrated water outlets in a one-to-one correspondence manner, and third valves (7) used for controlling the on-off of the outer concentrated water outlets are respectively arranged in the outer concentrated water outlets.

4. A reverse osmosis apparatus for uniformly utilizing RO membranes according to claim 1, wherein the second valve comprises a housing, a first disk (10) and a second disk (9), the housing is disposed in the third water inlet, the first disk (10) and the second disk (9) are coaxially disposed in the housing from outside to inside, the outer periphery of the second disk (9) is fixedly connected with the inner wall of the housing, and the first disk (10) is rotatably attached to the second disk (9);

a first circular path and a second circular path are arranged on the second disc (9) from the circle center radially and concentrically with each other, a plurality of first through holes are arranged on the first circular path, a plurality of second through holes are arranged on the second circular path, the first through holes are communicated with the first raw water inlet, and the second through holes are communicated with the circulation cavity;

a third circular path and a fourth circular path are arranged on the first disc (10) radially from the circle center and concentrically with each other, a plurality of third through holes are arranged on the third circular path, a plurality of fourth through holes are arranged on the fourth circular path, the diameter of the first circular path is the same as that of the third circular path, and the diameter of the second circular path is the same as that of the fourth circular path;

the driving assembly is connected with the first disc (10) in a driving mode to drive the first disc (10) to rotate, when the third through hole is communicated with the first through hole, the fourth through hole is not communicated with the second through hole, and when the fourth through hole is communicated with the second through hole, the third through hole is not communicated with the first through hole.

5. A reverse osmosis device capable of uniformly utilizing RO membranes according to claim 4, wherein the outer peripheral side of the first disk (10) is circumferentially provided with a first annular groove, the inner wall of the casing corresponding to the first disk (10) is provided with an annular protrusion matching with the first annular groove, the annular protrusion is circumferentially provided with a second annular groove, the second annular groove is internally provided with an annular sealing ring, and the first annular groove is slidably connected with the annular protrusion.

6. A reverse osmosis device for uniformly utilizing RO membranes according to claim 5, wherein the first end of the first disk (10) is provided with external teeth along the circumferential direction, the driving assembly comprises a motor, a driving gear and a chain, the output shaft of the motor is fixedly connected with the driving gear, and the driving gear is in transmission connection with the external teeth of the first disk (10) through the chain.

7. A reverse osmosis apparatus for uniformly utilizing RO membranes according to claim 1, wherein the first valve (8) is a solenoid valve.

8. A reverse osmosis apparatus using an RO membrane uniformly as claimed in claim 1, further comprising a raw water inlet pipe (11) having one end for communicating with a water source and the other end for communicating with a third raw water inlet, wherein a fourth valve for controlling the on/off of the raw water inlet pipe (11) is provided on the raw water inlet pipe (11).