A pressure tank reverse-flushing water purifying device

The water purifier uses a pressure tank for reverse flushing to precisely and individually flush the filter components, solving the problems of resource waste and filter damage, and achieving efficient water purification and filter protection.

CN224337322UActive Publication Date: 2026-06-09QINGDAO SUXUAN WATER PURIFICATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO SUXUAN WATER PURIFICATION TECHNOLOGY CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The backwashing method of existing water purifiers has the problems of wasting resources and damaging filter elements, especially filter elements that are sensitive to rinsing conditions.

Method used

The pressure tank reverse flushing water purification equipment uses precise and individual flushing of the filter water purification components. The first and second flushing pumps respectively perform independent backwashing cleaning of the filter screen and reverse osmosis membrane. Combined with the rotation of the switching plate, the separation and conduction of purified water and wastewater are achieved.

Benefits of technology

It achieves the goal of saving purified water resources while maintaining the high efficiency of the water purifier, preventing filter damage, and extending the service life of the water purifier.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224337322U_ABST
    Figure CN224337322U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of pressure tank reverse washing water purification equipment, it includes: shell, the inner wall of shell is fixedly connected with water purification tank, the inner wall of water purification tank is fixedly connected with water inlet pipe, the inner wall of water purification tank is fixedly connected with filter screen, reverse osmosis membrane and several filter core, the inner wall of shell is fixedly connected with storage tank, the inner wall of storage tank is fixedly connected with connecting pipe, the inner wall of storage tank is fixedly connected with water outlet pipe;The inner wall of water purification tank is fixedly connected with flushing pipe, flushing nozzle, first flushing pump, second flushing pump, first drainage device and second drainage device, the inner wall of water purification tank is rotatably connected with change road board, the inner wall of water purification tank is fixedly connected with water purification chamber and wastewater chamber, the inner wall of wastewater chamber is fixedly connected with wastewater pipe.Through above-mentioned structure, accurate individual flushing can be carried out to filter water purification assembly according to need, can save purified water resource used in backwashing cleaning, while also can prevent filter core from being damaged due to flushing, prolong the service life of water purifier.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a pressure tank reverse flushing water purification device. Background Technology

[0002] Currently, most water purifiers on the market use a complete backwashing method, which means backwashing all filtration and purification components simultaneously. This backwashing method has significant drawbacks. On the one hand, some purification components may be forcibly flushed before they meet the cleaning requirements, resulting in a waste of purified water. On the other hand, some filter cartridges that are more sensitive to flushing conditions (such as certain types of ultrafiltration membranes and activated carbon filters) may be damaged during improper flushing, thus shortening their lifespan. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a pressure tank reverse flushing water purification device that can perform precise and individual flushing of the filter water purification components as needed. It can save purified water resources used for backflushing while maintaining the high working performance of the water purifier. At the same time, it can also prevent filter elements that cannot be flushed from being damaged by flushing, thus extending the working life of the water purifier.

[0004] This utility model also provides a pressure tank reverse flushing water purification device, comprising: a shell, a water purification tank fixedly connected to the inner wall of the shell, an inlet pipe fixedly connected to the inner wall of the water purification tank, a filter screen, a reverse osmosis membrane and several filter cartridges fixedly connected to the inner wall of the water purification tank, the above components being used to complete the water purification work; a storage tank fixedly connected to the inner wall of the shell for storing and pressurizing purified water; a connecting pipe fixedly connected to the inner wall of the storage tank for connecting the water purification tank and the storage tank; and an outlet pipe fixedly connected to the inner wall of the storage tank for outputting purified water.

[0005] The inner wall of the water purification tank is fixedly connected to a flushing pipe and a flushing nozzle. The inner wall of the flushing nozzle is fixedly connected to a return water pipe. The inner wall of the outer shell is fixedly connected to a first flushing pump and a second flushing pump. The above mechanisms are used to backwash components that need to be backwashed. The inner wall of the water purification tank is fixedly connected to a first drainage device and a second drainage device, which are used to discharge the wastewater after backwashing from the water purification tank. The inner wall of the water purification tank is rotatably connected to a switching plate, which is used to switch between the water purification working mode and the backwashing mode. The inner wall of the water purification tank is fixedly connected to a water purification chamber and a wastewater chamber. The inner wall of the wastewater chamber is fixedly connected to a wastewater pipe, which is used to discharge the wastewater from backwashing.

[0006] According to the present invention, a pressure tank reverse flushing water purification device comprises a first drainage device consisting of a drain pipe and a valve. The valve is slidably connected to the inner wall of the drain pipe, and the drain pipe is fixedly connected to the inner wall of the water purification tank. The structure of the second drainage device is identical to that of the first drainage device. The above mechanisms are used to perform drainage operations as required.

[0007] According to the present invention, a pressure tank reverse flushing water purification device comprises a flushing pipe, one end of which is fixedly connected to the inner wall of the storage tank, the flushing pipe being internally connected to the return water pipe, the flushing nozzle being located between the filter screen and the filter element, and the end of the flushing pipe fixedly connected to the water tank being located on the upper surface of the reverse osmosis membrane. This mechanism is used to precisely clean components requiring backflushing.

[0008] According to the present invention, in a pressure tank reverse flushing water purification device, the end of the connecting pipe furthest from the storage tank is connected to the interior of the purification chamber. This mechanism enables communication between the purification chamber and the storage tank.

[0009] According to the present invention, a pressure tank reverse flushing water purification device includes a first flushing pump fixedly connected to the inner wall of the outer shell. The input end of the first flushing pump is connected to the interior of the flushing pipe, and the output end of the first flushing pump is connected to the interior of the flushing nozzle. This mechanism is used to pump purified water into the flushing nozzle as needed.

[0010] According to the present invention, a pressure tank reverse flushing water purification device comprises a motor fixedly connected to the inner wall of the outer shell, a rotating shaft fixedly connected to the output end of the motor, the rotating shaft being fixedly connected to the inner wall of the switching plate, and the switching plate being rotatably connected to the outer surfaces of the purified water chamber and the wastewater chamber. The above mechanism is used to realize the switching function of the switching plate.

[0011] According to the present invention, a pressure tank reverse flushing water purification device includes a second flushing pump fixedly connected to the inner wall of the outer shell. The input end of the second flushing pump is connected to the interior of the storage tank, and the input end of the second flushing pump is connected to the interior of the flushing pipe. This structure is used to pump purified water into the flushing pipe as needed.

[0012] According to the present invention, a pressure tank reverse flushing water purification device has a first drainage device located above the filter screen, and a second drainage device located between the reverse osmosis membrane and the lowermost filter element. This mechanism is used to achieve precise drainage.

[0013] This utility model of pressure tank reverse flushing water purification equipment can perform precise and individual flushing of the filter water purification components as needed. It can maintain the high working performance of the water purifier while saving the purified water resources used for backflushing, and at the same time, it can prevent the filter elements that cannot be flushed from being damaged by flushing, thus extending the working life of the water purifier. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an isometric view of the pressure tank reverse flushing water purification device of this utility model;

[0016] Figure 2 This is an internal sectional view of the pressure tank reverse flushing water purification device of this utility model;

[0017] Figure 3 This is a top sectional view of the pressure tank reverse flushing water purification device of this utility model;

[0018] Figure 4 This is a structural diagram of the purification chamber portion of the pressure tank reverse flushing water purification equipment of this utility model.

[0019] Legend:

[0020] 1. Outer shell; 2. Purified water tank; 3. Storage tank; 4. First drainage device; 5. Outlet pipe; 6. Flushing nozzle; 7. Inlet pipe; 8. Connecting pipe; 9. Flushing pipe; 10. Filter screen; 11. Wastewater pipe; 12. First flushing pump; 13. Second flushing pump; 14. Valve; 15. Filter element; 16. Rotating shaft; 17. Second drainage device; 18. Switch plate; 19. Rotating motor; 20. Reverse osmosis membrane; 21. Purified water chamber; 22. Wastewater chamber; 23. Drain pipe; 24. Return water pipe. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model discloses a pressure tank reverse flushing water purification device, comprising: an outer shell 1; a purified water tank 2 fixedly connected to the inner wall of the outer shell 1; an inlet pipe 7 fixedly connected to the inner wall of the purified water tank 2 for introducing water to be purified into the purified water tank 2; a filter screen 10, a reverse osmosis membrane 20, and several filter elements 15 fixedly connected to the inner wall of the purified water tank 2 for filtering and purifying the water; a storage tank 3 fixedly connected to the inner wall of the outer shell 1 for storing purified water; a circuit breaker 18 rotatably connected to the inner wall of the purified water tank 2; and a purified water chamber 21 and a wastewater chamber 22 fixedly connected to the inner wall of the purified water tank 2. A rotating motor 19 is fixedly connected to the wall, and a rotating shaft 16 is fixedly connected to the output end of the rotating motor 19. The rotating shaft 16 is fixedly connected to the inner wall of the switching plate 18. The switching plate 18 is rotatably connected to the outer surface of the clean water chamber 21 and the wastewater chamber 22. A wastewater pipe 11 is fixedly connected to the inner wall of the wastewater chamber 22. The above mechanism is used to realize the change of water path and the mechanism for discharging flushing wastewater. A connecting pipe 8 is fixedly connected to the inner wall of the storage tank 3. The end of the connecting pipe 8 away from the storage tank 3 is connected to the interior of the clean water chamber 21 and is used to connect the clean water tank 2 and the storage tank 3. A water outlet pipe 5 is fixedly connected to the inner wall of the storage tank 3 and is used to discharge purified water.

[0023] When the water purifier is working normally, the motor 19 drives the circuit board 18 to rotate, making the inside of the water tank 2 connected to the inside of the water purification chamber 21. Purified water flows into the water tank 2 from the inlet pipe 7. After being filtered and purified by the filter screen 10, several filter elements 15 and the reverse osmosis membrane 20 in the water tank 2, the purified water enters the water purification chamber 21 and then enters the storage tank 3 through the connecting pipe 8. When the outlet valve is opened, the purified water is forced out from the storage tank 3, realizing the water purification function of the water purifier.

[0024] A flushing pipe 9 and a flushing nozzle 6 are fixedly connected to the inner wall of the water purification tank 2. A return water pipe 24 is fixedly connected to the inner wall of the flushing nozzle 6. The end of the flushing pipe 9 away from the water purification tank 2 is fixedly connected to the inner wall of the storage tank 3. The flushing pipe 9 is internally connected to the storage tank 3, the water purification tank 2, and the return water pipe 24. The flushing nozzle 6 is located between the filter screen 10 and the filter element 15. The end of the flushing pipe 9 fixedly connected to the water purification tank 2 is located on the upper surface of the reverse osmosis membrane 20. The above mechanism is used to realize that purified water is sprayed independently from the flushing nozzle 6 and the flushing pipe 9. A first flushing pump 12 is fixedly connected to the inner wall of the outer shell 1. The input end of the first flushing pump 12 is internally connected to the flushing pipe 9, and the output end of the first flushing pump 12 is internally connected to the return water pipe 24. A second flushing pump 13 is fixedly connected to the inner wall of the outer shell 1. The input end of the second flushing pump 13 is connected to the inside of the storage tank 3, and the input end of the second flushing pump 13 is connected to the inside of the flushing pipe 9. The above mechanism is used to pump purified water into the flushing nozzle 6 or the flushing pipe 9. The inner wall of the water tank 2 is fixedly connected to the first drainage device 4 and the second drainage device 17. The first drainage device 4 consists of a drain pipe 23 and a valve 14. The valve 14 is slidably connected to the inner wall of the drain pipe 23, and the drain pipe 23 is fixedly connected to the inner wall of the water tank 2. The structure of the second drainage device 17 is the same as that of the first drainage device 4. The first drainage device 4 is located above the filter screen 10, and the second drainage device 17 is located between the reverse osmosis membrane 20 and the bottom filter element 15. The above mechanism is used to realize whether the drain pipe 23 is connected to the inside of the water tank 2 and to realize the discharge of flushing water from the water tank 2.

[0025] During backwashing, the motor 19 operates, driving the circuit breaker 18 to rotate and connect the interior of the clean water tank 2 with the interior of the wastewater chamber 22. The operation of the first flushing pump 12 and the second flushing pump 13 is selected according to the flushing requirements. When the first flushing pump 12 is working, purified water is pumped from the storage tank 3 through the return water pipe 24 into the flushing nozzle 6 and sprayed out from the flushing nozzle 6 to backwash the filter screen 10. At this time, the valve 14 in the first drainage device 4 moves, making the drain pipe 23 connected to the inside of the clean water tank 2. Part of the flushed wastewater is discharged from the drain pipe 23, and part of it eventually falls into the wastewater chamber 22 under gravity, and then is discharged from the wastewater chamber 22 through the wastewater pipe 11. When the second flushing pump 13 is working, purified water is pumped from the storage tank 3 into the flushing pipe 9 and sprayed out to backwash the reverse osmosis membrane 20. At this time, the valve 14 in the second drainage device 17 moves, making the drain pipe 23 connected to the inside of the clean water tank 2. Part of the cleaning wastewater is discharged from the drain pipe 23, and part of it eventually falls into the wastewater chamber 22 under gravity, and then is discharged from the wastewater chamber 22 through the wastewater pipe 11, realizing precise and independent backwashing of the purification components.

[0026] Working principle: When the water purifier is working normally, the motor 19 drives the switch plate 18 to rotate, making the inside of the water tank 2 connected to the inside of the water purification chamber 21. Purified water flows into the water tank 2 from the inlet pipe 7. After being filtered and purified by the filter screen 10, several filter elements 15 and the reverse osmosis membrane 20 in the water tank 2, the purified water enters the water purification chamber 21 and then enters the storage tank 3 through the connecting pipe 8. When the outlet valve is opened, the purified water is forced out from the storage tank 3, realizing the water purification function of the water purifier. When performing backwash cleaning, the motor 19 works, driving the switch plate 18 to rotate, making the inside of the water tank 2 connected to the inside of the wastewater chamber 22. The operation of the first flushing pump 12 and the second flushing pump 13 is selected according to the flushing needs. When the first flushing pump 12 is working, purified water is pumped from the storage tank 3 through the return water pipe 24 into the flushing nozzle 6 and sprayed out from the flushing nozzle 6 to backwash the filter screen 10. At this time, the valve 14 in the first drainage device 4 moves, making the drain pipe 23 connected to the inside of the clean water tank 2. Part of the flushed wastewater is discharged from the drain pipe 23, and part of it eventually falls into the wastewater chamber 22 under gravity, and then is discharged from the wastewater chamber 22 through the wastewater pipe 11. When the second flushing pump 13 is working, purified water is pumped from the storage tank 3 into the flushing pipe 9 and sprayed out to backwash the reverse osmosis membrane 20. At this time, the valve 14 in the second drainage device 17 moves, making the drain pipe 23 connected to the inside of the clean water tank 2. Part of the cleaning wastewater is discharged from the drain pipe 23, and part of it eventually falls into the wastewater chamber 22 under gravity, and then is discharged from the wastewater chamber 22 through the wastewater pipe 11, realizing precise and independent backwashing of the purification components.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressure tank reverse flushing water purification device, characterized in that, include: The outer shell (1) has a water purification tank (2) fixedly connected to its inner wall. The water purification tank (2) has an inlet pipe (7) fixedly connected to its inner wall. The water purification tank (2) has a filter screen (10), a reverse osmosis membrane (20), and several filter elements (15) fixedly connected to its inner wall. The outer shell (1) has a storage tank (3) fixedly connected to its inner wall. The storage tank (3) has a connecting pipe (8) fixedly connected to its inner wall. The storage tank (3) has an outlet pipe (5) fixedly connected to its inner wall. The inner wall of the water purification tank (2) is fixedly connected to a flushing pipe (9) and a flushing nozzle (6). The inner wall of the flushing nozzle (6) is fixedly connected to a return water pipe (24). The inner wall of the outer shell (1) is fixedly connected to a first flushing pump (12) and a second flushing pump (13). The inner wall of the water purification tank (2) is fixedly connected to a first drainage device (4) and a second drainage device (17). The inner wall of the water purification tank (2) is rotatably connected to a circuit breaker plate (18). The inner wall of the water purification tank (2) is fixedly connected to a water purification chamber (21) and a wastewater chamber (22). The inner wall of the wastewater chamber (22) is fixedly connected to a wastewater pipe (11).

2. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The first drainage device (4) consists of a drain pipe (23) and a valve (14). The valve (14) is slidably connected to the inner wall of the drain pipe (23), and the drain pipe (23) is fixedly connected to the inner wall of the water purification tank (2). The structure of the second drainage device (17) is the same as that of the first drainage device (4).

3. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The end of the flushing pipe (9) away from the water purification tank (2) is fixedly connected to the inner wall of the storage tank (3). The flushing pipe (9) is internally connected to the return water pipe (24). The end of the flushing nozzle (6) fixedly connected to the water purification tank (2) is located between the filter screen (10) and the filter element (15). The end of the flushing pipe (9) fixedly connected to the water purification tank (2) is located on the upper surface of the reverse osmosis membrane (20).

4. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The end of the connecting pipe (8) away from the storage tank (3) is connected to the interior of the water purification chamber (21).

5. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The input end of the first flushing pump (12) is connected to the inside of the flushing pipe (9), and the output end of the first flushing pump (12) is connected to the inside of the flushing nozzle (6).

6. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, A rotating motor (19) is fixedly connected to the inner wall of the outer shell (1). A rotating shaft (16) is fixedly connected to the output end of the rotating motor (19). The rotating shaft (16) is fixedly connected to the inner wall of the switching plate (18). The switching plate (18) is rotatably connected to the outer surface of the clean water chamber (21) and the wastewater chamber (22).

7. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The input end of the second flushing pump (13) is connected to the interior of the storage tank (3), and the input end of the second flushing pump (13) is connected to the interior of the flushing pipe (9).

8. The pressure tank reverse flushing water purification device according to claim 1, characterized in that, The first drainage device (4) is located above the filter screen (10), and the second drainage device (17) is located between the reverse osmosis membrane (20) and the bottommost filter element (15).