CN221739994U - A long-lasting RO membrane water purifier - Google Patents

Abstract

The application relates to the technical field of water purifying equipment, in particular to a long-acting RO membrane water purifier which comprises a cylinder body, wherein a water collecting pipe with the bottom end sealed through a blind plate is arranged in the cylinder body in a penetrating way, an annular space is formed between the outer surface of the water collecting pipe and the inner wall of the cylinder body, and round holes are uniformly formed in the part of the water collecting pipe, which is positioned in the cylinder body. When the RO membrane cleaning device is used, when the RO membrane is required to be cleaned, the handle is enabled to point to the back flushing pipe by rotating the handle, the stop valve is closed, raw water with a certain pressure is externally connected with the input end of the three-way valve, the raw water enters the back flushing pipe from the second output end of the three-way valve, the raw water enters the water collecting pipe from the back flushing pipe, the RO membrane is backwashed from inside to outside through the round hole due to the fact that the stop valve is closed, and flushing water enters the annular space of the cylinder body and the water collecting pipe through the RO membrane and is discharged from the waste pipe, so that the aim of cleaning the RO membrane without disassembly is achieved, and the cleaning period of the RO membrane is prolonged.

Description

A long-lasting RO membrane water purifier

Technical Field

The present application relates to the technical field of water purification equipment, and in particular to a long-lasting RO membrane water purifier.

Background Art

RO is the abbreviation of Reverse Osmosis. Generally, water flows from low concentration to high concentration. Once water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: Since the pore size of the RO membrane is one millionth of a hair (0.0001 micron), it is generally invisible to the naked eye, and bacteria and viruses are 5000 times larger than it. Therefore, only water molecules and some mineral ions can pass through (the ions that pass through have no benefit or loss orientation), and other impurities and heavy metals are discharged from the wastewater pipe. All seawater desalination processes and astronaut wastewater recycling and treatment use this method.

Through searching, Chinese patent announcement number CN106554054A discloses a RO membrane filter device, including a RO membrane filter element, a housing and an end cap, wherein the RO membrane filter element is arranged in the housing, and the end cap is connected to the top of the RO membrane filter element and forms a wastewater channel and a pure water channel separated therefrom; the RO membrane filter element includes a water collecting pipe and an RO diaphragm area located outside the water collecting pipe, the bottom end of the water collecting pipe is sealed and the top end is connected to the pure water channel, and the top end of the RO diaphragm area is connected to the wastewater channel; there is a gap between the housing and the end cap and the RO membrane filter element, and the gap is connected to the bottom end of the RO diaphragm area to form a water inlet channel, and the water inlet, the pure water outlet and the wastewater outlet are all located at the top end, which is convenient for orderly connection of pipelines, and the overall structure is simple, beautiful and has good sealing performance. The present invention also discloses a water purifier having the above-mentioned RO membrane filter device.

When the above technical solution is used, if the RO membrane needs to be cleaned or replaced, the device needs to be disassembled, which makes the steps more complicated.

After long-term use, impurities will accumulate on the outer surface of the RO membrane of the existing RO membrane, resulting in reduced water filtering effect of the RO membrane. The RO membrane needs to be cleaned or replaced regularly. The RO membrane water purifier is generally cleaned every 3-12 months, and the cleaning cycle is short. Each time the RO membrane water purifier is cleaned, the RO membrane needs to be opened and cleaned manually, which is cumbersome, time-consuming and labor-intensive.

With respect to the above-mentioned related technologies, the inventors found the following defects:

Utility Model Content

In order to solve the problem of difficulty in cleaning the RO membrane of the RO membrane water purifier during use, the present application provides a long-lasting RO membrane water purifier.

A long-lasting RO membrane water purifier provided in the present application adopts the following technical solution: it includes a cylinder, a water collecting pipe with a bottom end sealed by a blind plate is penetrated inside the cylinder, an annular space is formed between the outer surface of the water collecting pipe and the inner wall of the cylinder, circular holes are evenly opened on the part of the water collecting pipe located inside the cylinder, an RO membrane is wrapped on the outer surface of the part of the water collecting pipe located inside the cylinder, a water pipe joint is provided at the bottom end of the cylinder, the water pipe joint is connected to the annular space, a backwashing device is provided on the water pipe joint, and the backwashing device leads water to the inside of the water collecting pipe to backwash the RO membrane.

Optionally, a first blocking plate is provided at the bottom end of the cylinder, and the first blocking plate is provided between the water collecting pipe and the cylinder. The backwashing device includes a three-way valve provided between the water pipe joint and the first blocking plate, the input end of the three-way valve is connected with the water pipe joint, the first output end of the three-way valve is passed through the first blocking plate and is connected with the annular space, and the second output end of the three-way valve is provided with a backwashing pipe, and the end of the backwashing pipe away from the three-way valve is connected with the part of the water collecting pipe extending out of the first blocking plate.

Optionally, the top end of the water collecting pipe extends out of the cylinder and is installed with a stop valve, and a handle is provided on the valve stem of the stop valve.

Optionally, a cleaning liquid adding device is provided on the backwash pipe, and the cleaning liquid adding device includes a medicine tank, and the bottom end of the medicine tank is arranged on the backwash pipe and communicated with the interior of the backwash pipe.

Optionally, two reducers are provided inside the backwash pipe at positions corresponding to the bottom end of the medicine tank, a connecting pipe is provided between the two reducers, and the connecting pipe extends through the bottom end of the medicine tank to the inside of the backwash pipe and connects with the medicine tank.

Optionally, a second blocking plate is provided at the top of the cylinder, the second blocking plate is provided between the water collecting pipe and the cylinder, and water outlets are evenly opened on the second blocking plate.

Optionally, a sealing plate is provided on the inner wall of the top of the cylinder, a wastewater collection space is formed between the sealing plate and the second sealing plate, a wastewater pipe is provided on the upper part of the outer surface of the cylinder at a position corresponding to the wastewater collection space, and the wastewater pipe is connected to the wastewater collection space.

Optionally, a handle is provided on the valve stem of the three-way valve, and the handle indicates that the input end of the three-way valve is connected to the first output end or the second output end.

In summary, this application includes the following beneficial technical effects:

1. The utility model is provided with an RO membrane, a three-way valve, a handle, a backwash pipe, a water collecting pipe, a cylinder, a stop valve and a waste water pipe. When the device is used, when it is necessary to clean the RO membrane, the handle is turned so that the handle points to the backwash pipe and the stop valve is closed. The input end of the three-way valve is externally connected to raw water with a certain pressure, and the raw water enters the backwash pipe from the second output end of the three-way valve, and enters the interior of the water collecting pipe from the backwash pipe. Since the stop valve is closed, the raw water entering the water collecting pipe backwashes the RO membrane from the inside to the outside through the circular hole, and the flushing water passes through the RO membrane into the annular space of the cylinder and the water collecting pipe, and is discharged from the waste water pipe, thereby achieving the purpose of cleaning the RO membrane without disassembly, thereby extending the cleaning cycle of the RO membrane.

2. The utility model is provided with an RO membrane, a water collecting pipe, a medicine tank, a backwashing pipe, a reducer and a connecting pipe. When the device is used, the RO membrane can be backwashed through the backwashing pipe. When the RO membrane is backwashed, cleaning liquid can also be added at the same time. The cleaning liquid is added to the internal flushing water of the medicine tank and passes through the reducer. Since the flow area of the reducer is reduced, the flow rate of the flushing water is increased. When the flushing water with a increased flow rate passes through the connecting pipe, a Venturi effect is generated, and the liquid inside the medicine tank is sucked through the bottom end of the medicine tank, so that the cleaning liquid and the backwashing water enter the water collecting pipe together to backwash the RO membrane, thereby increasing the backwashing effect.

3. The utility model is provided with a cylinder, a water collecting pipe, an RO membrane, a water pipe joint, a waste water pipe, and a second stuffing plate. When the device is used, raw water is input into the annular space between the cylinder and the water collecting pipe through the water pipe joint at a set pressure. Since the communication area of the water outlet hole of the second stuffing plate is small, the raw water inside the annular space has a certain pressure. The raw water with a certain pressure penetrates into the interior of the water collecting pipe through the RO membrane, bacteria and viruses are isolated in the annular space, the pure water inside the water collecting pipe is output to the outside, and the waste water in the annular space is discharged through the waste water pipe, thereby achieving the purpose of purifying the raw water.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of an embodiment of the present application;

FIG2 is a schematic diagram of the three-dimensional structure of the interior of the cylinder in an embodiment of the present application;

FIG3 is a schematic diagram of the three-dimensional structure of the interior of the RO membrane in an embodiment of the present application;

FIG4 is a schematic diagram of the three-dimensional structure of a stop valve in an embodiment of the present application;

FIG. 5 is a schematic diagram of the three-dimensional structure of the interior of the backwash pipe in an embodiment of the present application.

Figure numerals: 1. cylinder; 2. sealing plate; 3. stop valve; 4. handle; 5. three-way valve; 6. handle; 7. water collecting pipe; 8. waste water pipe; 9. medicine tank; 10. backwash pipe; 11. second sealing plate; 12. water outlet; 13. RO membrane; 14. first sealing plate; 15. water pipe joint; 16. round hole; 17. reducer; 18. connecting pipe.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with Figures 1-5.

The embodiment of the present application discloses a long-lasting RO membrane water purifier, including a cylinder 1, a water collecting pipe 7 whose bottom end is sealed by a blind plate is penetrated inside the cylinder 1, an annular space is formed between the outer surface of the water collecting pipe 7 and the inner wall of the cylinder 1, circular holes 16 are evenly opened on the part of the water collecting pipe 7 located inside the cylinder 1, an RO membrane 13 is wrapped on the outer surface of the part of the water collecting pipe 7 located inside the cylinder 1, a water pipe joint 15 is provided at the bottom end of the cylinder 1, the water pipe joint 15 is connected to the annular space, a backwashing device is provided on the water pipe joint 15, and the backwashing device leads water to the inside of the water collecting pipe 7 to backwash the RO membrane 13.

When in use, the water to be purified is called raw water, which is input into the annular space between the cylinder 1 and the water collecting pipe 7 through the water pipe joint 15 at a set pressure. Since the raw water inside the annular space has a set pressure, the pore size of the RO membrane 13 is very small, and only water molecules and minerals can pass through, while bacteria and viruses cannot pass through the pore size of the RO membrane 13. Therefore, the water molecules and minerals of the raw water will pass through the RO membrane 13 and the circular holes 16 of the water collecting pipe 7 to enter the interior of the water collecting pipe 7, while bacteria and viruses cannot pass through the pore size of the RO membrane 13 and are isolated in the annular space. The water in the annular space becomes wastewater, which flows out from the top of the cylinder 1 for centralized treatment, and the water that passes through the RO membrane 13 and enters the interior of the water collecting pipe 7 becomes pure water, which is discharged from the top of the water collecting pipe 7 for collection. Use: When the RO membrane 13 water purifier is used for a long time, it is generally necessary to clean the RO membrane 13 every 3 to 12 months and replace it as needed. To clean the RO membrane 13, the RO membrane 13 water purifier needs to be disassembled and opened, the RO membrane 13 needs to be taken out for cleaning, and it needs to be soaked in cleaning solution. In order to achieve the cleaning of the RO membrane 13 without disassembling the RO membrane 13 water purifier and extend the disassembly and cleaning cycle of the RO membrane 13, the backwashing device provided in the utility model can utilize the existing parts of the RO membrane 13 water purifier to achieve backwashing of the RO membrane 13 through the reverse circulation of the water channel. It is quick and efficient, and there is no need to disassemble the RO membrane 13 water purifier. At the same time, the disassembly and cleaning cycle of the RO membrane 13 is extended, so that the service life of the RO membrane 13 is longer.

In order to realize the backwashing of the RO membrane 13 water purifier, in this embodiment, please refer to Figures 1, 2, 3, 4, and 5. A first stuffy plate 14 is provided at the bottom end of the cylinder 1, and the first stuffy plate 14 is provided between the water collecting pipe 7 and the cylinder 1. The backwashing device includes a three-way valve 5 provided between the water pipe joint 15 and the first stuffy plate 14. The input end of the three-way valve 5 is connected with the water pipe joint 15. The first output end of the three-way valve 5 is penetrated through the first stuffy plate 14 and is connected with the annular space. The second output end of the three-way valve 5 is provided with a backwashing pipe 10. The end of the backwashing pipe 10 away from the three-way valve 5 is connected with the part of the water collecting pipe 7 extending out of the first stuffy plate 14. In normal use, the raw water is connected with the water pipe joint 15, and the raw water enters the valve body from the input end of the three-way valve 5 through the water pipe joint 15, and is discharged from the first output end of the three-way valve 5. The raw water enters the annular space between the cylinder 1 and the water collecting pipe 7 to purify the raw water. When the RO membrane 13 needs to be backwashed, it is only necessary to switch the three-way valve 5 so that the input end of the three-way valve 5 is connected to the second output end. At this time, the raw water enters the three-way valve 5 through the water pipe joint 15, and is discharged from the second output end of the three-way valve 5 into the inside of the backwashing pipe 10, and directly enters the inside of the water collecting pipe 7 through the backwashing pipe 10. The raw water inside the water collecting pipe 7 is discharged from the circular hole 16 to backwash the RO membrane 13 from the inside to the outside, and flows into the annular space, and then is discharged from the top of the cylinder 1. After the backwashing is set for the time, the three-way valve 5 can be converted to the use state, that is, the input end of the three-way valve 5 is connected to the first output end, backwashing saves time, and extends the disassembly and cleaning cycle of the RO membrane 13.

To facilitate the conversion of the three-way valve 5, in this embodiment, please refer to Figures 1, 2, 3, 4, and 5. A handle 6 is provided on the valve stem of the three-way valve 5. The handle 6 indicates that the input end of the three-way valve 5 is connected to the first output end or the second output end. The three-way valve 5 can be converted by rotating the handle 6 ninety degrees. When the handle 6 points to the first output end, it is in normal use and the raw water is purified. When the handle 6 is rotated to point to the second output end, that is, when it points to the backwashing pipe 10, it is in the backwashing state.

In order to maintain sufficient pressure when the raw water enters the annular space between the cylinder 1 and the water collecting pipe 7, in this embodiment, please refer to Figures 2, 3, and 4. A second stuffy plate 11 is provided at the top of the cylinder 1. The second stuffy plate 11 is provided between the water collecting pipe 7 and the cylinder 1. Water outlets 12 are evenly opened on the second stuffy plate 11. A number of water outlets 12 are set as needed. The raw water entering the annular space through the water pipe joint 15 is discharged from the water outlet 12 of the second stuffy plate 11. The total flow area of all the water outlets 12 is smaller than the flow area of the water pipe joint 15, so that the raw water maintains sufficient water pressure inside the annular space. The raw water with sufficient water pressure enters the interior of the water collecting pipe 7 through the RO membrane 13 to complete purification, and the water bacteria and viruses inside the annular space are discharged from the water outlet 12 of the second stuffy plate 11 together with the raw water.

In order to collect wastewater more conveniently, in this embodiment, please refer to Figures 2, 3, and 4. A sealing plate 2 is provided on the inner wall of the top of the cylinder 1, and a wastewater collection space is formed between the sealing plate 2 and the second stuffy plate 11. A wastewater pipe 8 is provided at a position corresponding to the wastewater collection space on the upper part of the outer surface of the cylinder 1. The wastewater pipe 8 is connected to the wastewater collection space. The wastewater flowing out from the water outlet 12 of the second stuffy plate 11 enters the wastewater collection space and is discharged through the wastewater pipe 8 for centralized treatment.

In order to prevent the raw water entering the water collecting pipe 7 from being discharged from the top of the water collecting pipe 7 during backwashing, in this embodiment, please refer to Figures 1, 2, 3, and 4. The top of the water collecting pipe 7 extends out of the cylinder 1 and is equipped with a stop valve 3. A handle 4 is provided on the valve stem of the stop valve 3. When backwashing is performed, the stop valve 3 is closed by the handle 4. When the raw water is purified normally, the stop valve 3 is opened.

In order to add cleaning liquid at the same time during backwashing to increase the backwashing effect, in this embodiment, please refer to Figures 1, 2, 3, 4, and 5. A cleaning liquid adding device is provided on the backwashing pipe 10. The cleaning liquid device includes a medicine tank 9. The bottom end of the medicine tank 9 is provided on the backwashing pipe 10 and is connected to the inside of the backwashing pipe 10. When backwashing is performed, cleaning liquid is first added to the inside of the medicine tank 9, so that the cleaning liquid flows into the inside of the backwashing pipe 10, and backwashes the RO membrane 13 together with the raw water, thereby increasing the backwashing effect.

In order to add cleaning liquid while backwashing, in this embodiment, please refer to Figure 5. Two reducers 17 are provided at the position corresponding to the bottom end of the medicine tank 9 inside the backwash pipe 10, and a connecting pipe 18 is provided between the two reducers 17. The connecting pipe 18 extends to the inside of the backwash pipe 10 through the bottom end of the medicine tank 9 and is connected with the medicine tank 9. When backwashing is performed, first, the cleaning liquid is added to the inside of the medicine tank 9, and then the three-way valve 5 is switched so that the input end of the three-way valve 5 is connected with the second output end. When the raw water with a set pressure flows through the backwash pipe 10 and passes through the reducer 17, the flow area of the reducer 17 becomes smaller, so that the flow rate of the raw water flowing into the connecting pipe 18 becomes larger, thereby forming a Venturi effect, and the cleaning liquid inside the medicine tank 9 is sucked through the bottom end of the medicine tank 9, so that the cleaning liquid and the raw water follow into the inside of the water collecting pipe 7 to backwash the RO membrane 13.

The implementation principle of one embodiment of the present application is as follows: in normal use, the raw water is connected to the water pipe joint 15, the raw water enters the valve body from the input end of the three-way valve 5 through the water pipe joint 15, and is discharged from the first output end of the three-way valve 5 into the annular space between the cylinder 1 and the water collecting pipe 7 to purify the raw water, the waste water is discharged from the waste water pipe 8 at the top of the cylinder 1, and the pure water is discharged from the top of the water collecting pipe 7 through the stop valve 3. When the RO membrane 13 needs to be backwashed, it is only necessary to switch the three-way valve 5, by turning the handle 6 ninety degrees, so that the handle 6 points to the backwashing pipe 10, and at the same time close the stop valve 3, so that the input end of the three-way valve 5 is connected to the first output end. The two output ends are connected. At this time, the raw water enters the three-way valve 5 through the water pipe joint 15, and is discharged from the second output end of the three-way valve 5 into the inside of the backwash pipe 10, and directly enters the inside of the water collecting pipe 7 through the backwash pipe 10. The raw water inside the water collecting pipe 7 is discharged from the circular hole 16 to backwash the RO membrane 13 from the inside to the outside, and flows into the annular space, and then is discharged from the waste water pipe 8 at the top of the cylinder 1. After the backwashing set time, the three-way valve 5 can be converted into the use state, that is, the input end of the three-way valve 5 is connected with the first output end, backwashing saves time, and extends the disassembly and cleaning cycle of the RO membrane 13.

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 (8)

1. The utility model provides a long-acting RO membrane water purifier, includes barrel (1), its characterized in that: the utility model discloses a water-saving type reverse osmosis membrane reverse osmosis device is characterized in that a water collecting pipe (7) with the bottom sealed through a blind plate is arranged in the barrel (1), an annular space is formed between the outer surface of the water collecting pipe (7) and the inner wall of the barrel (1), round holes (16) are uniformly formed in the part, located in the barrel (1), of the water collecting pipe (7), RO membranes (13) are wrapped on the outer surface of the part, located in the barrel (1), of the water collecting pipe (7), a water pipe connector (15) is arranged at the bottom of the barrel (1), the water pipe connector (15) is communicated with the annular space, a reverse osmosis device is arranged on the water pipe connector (15), and the reverse osmosis device conducts reverse osmosis on the RO membranes (13) by guiding water into the water collecting pipe (7).

2. The long-acting RO membrane water purifier of claim 1 wherein: the bottom of barrel (1) is provided with first stifle (14), and first stifle (14) set up between collector pipe (7) and barrel (1), back flush device is including setting up three-way valve (5) between water pipe head (15) and first stifle (14), the input and the water pipe head (15) intercommunication of three-way valve (5), first output of three-way valve (5) wears to locate first stifle (14) and communicates with the annular space, the second output of three-way valve (5) is provided with back flush pipe (10), the one end that three-way valve (5) were kept away from to back flush pipe (10) and the outside part intercommunication of collector pipe (7) extension first stifle (14).

3. The long-acting RO membrane water purifier of claim 2 wherein: the top end of the water collecting pipe (7) extends out of the cylinder body (1) and is provided with a stop valve (3), and a handle (4) is arranged on a valve rod of the stop valve (3).

4. A long-acting RO membrane water purifier according to claim 3 in which: the back flushing pipe (10) is provided with a device for adding cleaning liquid medicine, the cleaning liquid medicine device comprises a medicine tank (9), and the bottom end of the medicine tank (9) is arranged on the back flushing pipe (10) and is communicated with the inside of the back flushing pipe (10).

5. The long-acting RO membrane water purifier of claim 4 wherein: two reducing heads (17) are arranged in the back flushing pipe (10) and at positions corresponding to the bottom ends of the medicine tanks (9), communication pipes (18) are arranged between the two reducing heads (17), and the communication pipes (18) extend to the back flushing pipe (10) through the bottom ends of the medicine tanks (9) to be communicated with the medicine tanks (9).

6. The long-acting RO membrane water purifier of claim 5 wherein: the top of barrel (1) is provided with second blank (11), second blank (11) set up between collector pipe (7) and barrel (1), delivery port (12) have evenly been seted up on second blank (11).

7. The long-acting RO membrane water purifier of claim 6 wherein: the inner wall at barrel (1) top is provided with closing plate (2), forms waste water collection space between closing plate (2) and second stifle (11), and the upper portion of barrel (1) surface corresponds with waste water collection space's position and is provided with waste water pipe (8), waste water pipe (8) and waste water collection space intercommunication.

8. The long-acting RO membrane water purifier of claim 2 wherein: a handle (6) is arranged on a valve rod of the three-way valve (5), and the handle (6) indicates the input end of the three-way valve (5) to be communicated with the first output end or the second output end.