Two-stage reverse osmosis water purification equipment

Abstract

The utility model discloses two-stage reverse osmosis water purification equipment which comprises a raw water tank and a first water pump communicated with the raw water tank, the first reverse osmosis tank is communicated with the first water pump; the second water pump is communicated with a reverse osmosis membrane in the first reverse osmosis tank; the second reverse osmosis tank is communicated with the second water pump; the third water pump is communicated with a reverse osmosis membrane in the second reverse osmosis tank; the bottom of the first reverse osmosis tank is communicated with a first water conveying pipe, a fourth water pump communicated with the first water pipe and a second water conveying pipe communicated with the fourth water pump, and the second water conveying pipe is communicated with the first reverse osmosis tank. The reverse osmosis device has the advantages of thorough reverse osmosis and high reverse osmosis efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of water purification equipment, and in particular to a two-stage reverse osmosis pure water equipment. Background Art

[0002] The pure water circulation system, also known as the pure water distribution system, is a distribution system consisting of a purified water storage tank and a closed-circuit pipeline circulation system. The pure water circulation system can recycle wastewater to prepare pure water, thereby realizing the protection and conservation of water resources.

[0003] Pure water produced by pure water circulation systems is used in a variety of fields, primarily for cleaning various electronic devices. The use of pure water can prevent the effects of impurities in the water on these devices. Reverse osmosis devices are often used in pure water production and circulation systems to treat wastewater. Reverse osmosis devices utilize the selective permeability of reverse osmosis membranes. When a solution is subjected to a pressure greater than its natural osmotic pressure, the solvent reverses its original permeation direction, initially flowing from the concentrated solution toward the dilute solution, thereby separating the solute from the solvent.

[0004] In the related art, a two-stage reverse osmosis device is used to produce pure water. A reverse osmosis membrane is installed in the reverse osmosis tank. As the water inside the reverse osmosis tank gradually passes through the reverse osmosis membrane under the pressure of the water pump to complete osmosis filtration, the concentration of pollutants near the reverse osmosis membrane becomes higher and higher, causing the pollutants to adhere to the surface of the reverse osmosis membrane and even gradually block the membrane pores of the reverse osmosis membrane, making it difficult for the reverse osmosis membrane to continue operating. At the same time, the brine remaining in the reverse osmosis tank gradually becomes thicker, and the thick brine has the disadvantage of poor fluidity. Therefore, as the brine concentration increases, the remaining water is difficult to flow to the vicinity of the reverse osmosis module to complete reverse osmosis, resulting in incomplete osmosis treatment. Utility Model Content

[0005] The present application provides a two-stage reverse osmosis pure water device, which, through a specific structure and design, alleviates the problems of reverse osmosis membrane contamination and incomplete reverse osmosis treatment, thereby improving the reverse osmosis effect.

[0006] The present application provides a two-stage reverse osmosis pure water equipment adopting the following technical solutions:

[0007] A two-stage reverse osmosis pure water equipment includes a raw water tank, a first water pump connected to the raw water tank, a first reverse osmosis tank connected to the first water pump, a second water pump connected to the reverse osmosis membrane in the first reverse osmosis tank, a second reverse osmosis tank connected to the second water pump, a third water pump connected to the reverse osmosis membrane in the second reverse osmosis tank, and a clean water tank connected to the third water pump; the bottom of the first reverse osmosis tank is connected to a first water pipe, a fourth water pump connected to the first water pipe, and a second water pipe connected to the fourth water pump; the second water pipe is connected to the first reverse osmosis tank.

[0008] By adopting the above technical solution, in the water circulation system, the raw water passes through the raw water tank and the first water pump into the first reverse osmosis tank for reverse osmosis treatment, and the treated water then enters the second reverse osmosis tank for secondary treatment, and finally pure water is obtained and stored in the clean water tank; the present application connects the first water pipe, the second water pipe and the fourth water pump on the first reverse osmosis tank, and the high-concentration wastewater concentrated at the bottom of the first reverse osmosis tank passes through the circulation loop formed by the first water pipe, the fourth water pump and the second water pipe. On the one hand, the continuously flowing water can carry away some of the pollutants adhering to the surface of the reverse osmosis membrane, alleviate membrane pollution, and improve the treatment efficiency of the reverse osmosis membrane. On the other hand, it solves the problem of poor fluidity of high-concentration wastewater, further improves the treatment effect of the reverse osmosis membrane, and reduces wastewater discharge.

[0009] Optionally, the second water delivery pipe is further connected to a water tank, and the water tank is connected to a micro-nano bubble generator.

[0010] By adopting the above technical solution, the micro-nano bubbles generated by the micro-nano bubble generator enter the first reverse osmosis tank along with the water flow. At the moment of collapse, the micro-nano bubbles can generate free radicals, degrade pollutants in the wastewater, reduce wastewater discharge and reduce the difficulty of wastewater treatment, and save energy consumption. In addition, the micro-nano bubbles can also alleviate the pollution of the reverse osmosis membrane. The micro-nano bubbles degrade the pollutants on the reverse osmosis membrane and dredge the reverse osmosis membrane, thereby improving the efficiency of the reverse osmosis membrane in treating wastewater and reducing the amount of wastewater discharged.

[0011] Optionally, the micro-nano bubble generator is connected to an ozone generator.

[0012] By adopting the above technical solution, the ozone generator can generate ozone, and the ozone generator and micro-nano bubbles are connected to generate ozone micro-nano bubbles, which enter the reverse osmosis system. On the one hand, the ozone with strong oxidizing properties can kill bacteria, viruses and other microorganisms in the water, thereby improving the cleanliness and safety of pure water. On the other hand, the ozone micro-nano also has a stronger effect of degrading pollutants, further improving the efficiency of the reverse osmosis membrane in treating wastewater and improving water quality.

[0013] Optionally, a quartz sand filter device is connected between the raw water tank and the first reverse osmosis tank.

[0014] Optionally, the quartz sand filtering device includes a fifth water pump connected to the raw water tank and a quartz sand filter connected to the fifth water pump, and the quartz sand filter is connected to the second water pump.

[0015] By adopting the above technical solution, the quartz sand filter device pre-treats the wastewater, removes large particles of impurities and suspended matter in the water, and protects the subsequent reverse osmosis membrane from clogging and wear.

[0016] Optionally, an activated carbon filter device is connected between the quartz sand filter and the first reverse osmosis tank.

[0017] Optionally, the activated carbon filtering device includes a sixth water pump connected to the quartz sand filter and an activated carbon filter connected to the sixth water pump, and the activated carbon filter is connected to the first water pump.

[0018] By adopting the above technical solution, the water after quartz sand filtration is further deeply treated through an activated carbon filtration device, and the adsorption properties of activated carbon are used to remove harmful substances such as organic matter and residual chlorine in the water, thereby improving the water quality entering the reverse osmosis tank.

[0019] Optionally, the activated carbon in the activated carbon filter is coconut shell activated carbon.

[0020] By adopting the above technical solution, coconut shell activated carbon has the advantages of large specific surface area, strong adsorption performance, and wear resistance. It can effectively remove various harmful substances in water and extend the service life of the activated carbon filter.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This application connects a first water pipe, a second water pipe, and a fourth water pump to a first reverse osmosis tank. High-concentration wastewater concentrated at the bottom of the first reverse osmosis tank passes through a water circulation loop formed by the first water pipe, the fourth water pump, and the second water pipe. On the one hand, the continuously flowing water can carry away some pollutants adhering to the surface of the reverse osmosis membrane, alleviate membrane fouling, and improve the treatment efficiency of the reverse osmosis membrane. On the other hand, it solves the problem of poor fluidity of high-concentration wastewater, further improves the treatment effect of the reverse osmosis membrane, and reduces wastewater discharge.

[0023] 2. The micro-nano bubbles generated by the micro-nano bubble generator enter the first reverse osmosis tank along with the water flow. At the moment of collapse, the micro-nano bubbles can generate free radicals, degrade pollutants in the wastewater, reduce wastewater discharge and reduce the difficulty of wastewater treatment, and save energy. In addition, the micro-nano bubbles can also alleviate the pollution of the reverse osmosis membrane. The micro-nano bubbles degrade the pollutants on the reverse osmosis membrane and dredge the reverse osmosis membrane, thereby improving the efficiency of the reverse osmosis membrane in treating wastewater and reducing the amount of wastewater discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the present application;

[0025] Figure 2 is a schematic structural diagram showing the first water pipe and the fourth water pump according to an embodiment of the present application;

[0026] Figure 3 It is a structural schematic diagram showing the micro-nano bubble generator according to an embodiment of the present application.

[0027] In the figure, 1. raw water tank; 11. first water pump; 12. second water pump; 13. third water pump; 2. first reverse osmosis tank; 21. first water pipe; 22. fourth water pump; 23. second water pipe; 24. water tank; 25. micro-nano bubble generator; 26. ozone generator; 3. second reverse osmosis tank; 4. clean water tank; 5. quartz sand filter; 51. fifth water pump; 52. quartz sand filter; 6. activated carbon filter; 61. sixth water pump; 62. activated carbon filter. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The embodiment of the present application discloses a two-stage reverse osmosis pure water equipment.

[0030] like Figure 1 As shown, a two-stage reverse osmosis pure water equipment includes a raw water tank 1, a first water pump 11 connected to the raw water tank 1, a first reverse osmosis tank 2 connected to the first water pump 11, a second water pump 12 connected to the reverse osmosis membrane (not shown) in the first reverse osmosis tank 2, a second reverse osmosis tank 3 connected to the second water pump 12, a third water pump 13 connected to the reverse osmosis membrane in the second reverse osmosis tank 3, and a clean water tank 4 connected to the third water pump 13.

[0031] The raw water tank 1 is used to store raw water to be treated. The first water pump 11 draws the raw water from the raw water tank 1 and transports it to the first reverse osmosis tank 2. The first reverse osmosis tank 2 is provided with a reverse osmosis membrane for reverse osmosis treatment of the raw water. The water treated by the first reverse osmosis tank 2 is transported to the second reverse osmosis tank 3 through the second water pump 12 for secondary reverse osmosis treatment to further improve the purity of the water. The pure water treated by the second reverse osmosis tank 3 is transported to the clean water tank 4 through the third water pump 13 for storage.

[0032] like Figure 2 and Figure 3 As shown, the bottom of the first reverse osmosis tank 2 is connected to a first water pipe 21 , a fourth water pump 22 connected to the first water pipe 21 , a second water pipe 23 connected to the fourth water pump 22 , and the second water pipe 23 is connected to the top of the first reverse osmosis tank 2 .

[0033] The high-concentration wastewater concentrated at the bottom of the first reverse osmosis tank 2 forms a circulation loop through the first water pipe 21, the fourth water pump 22 and the second water pipe 23. On the one hand, the flowing water can carry away some of the pollutants adhering to the surface of the reverse osmosis membrane, alleviate membrane pollution, and thus improve the treatment efficiency of the reverse osmosis membrane. On the other hand, it solves the problem of poor fluidity of high-concentration wastewater, further improves the treatment effect of the reverse osmosis membrane, and reduces wastewater discharge.

[0034] like Figure 2 and Figure 3 As shown, the second water delivery pipe 23 is also connected to a water tank 24 , the water tank 24 is connected to a micro-nano bubble generator 25 , and the micro-nano bubble generator 25 is connected to an ozone generator 26 .

[0035] The micro-nano bubbles generated by the micro-nano bubble generator 25 enter the first reverse osmosis tank 2 along with the water flow. At the moment of collapse, the micro-nano bubbles can generate free radicals, degrade pollutants in the wastewater, reduce wastewater discharge and reduce the difficulty of wastewater treatment, and save energy. In addition, the micro-nano bubbles can also alleviate the pollution of the reverse osmosis membrane. The micro-nano bubbles degrade the pollutants on the reverse osmosis membrane, dredge the reverse osmosis membrane, extend the service life of the reverse osmosis membrane, improve the efficiency of the reverse osmosis membrane in treating wastewater, and reduce the amount of wastewater discharged. The ozone generator 26 and the micro-nano bubble generator 25 are connected to generate ozone micro-nano bubbles. Compared with ordinary micro-nano bubbles, ozone micro-nano has a stronger effect of degrading pollutants, further improving the efficiency of the reverse osmosis membrane in treating wastewater and improving water quality. In addition, the ozone entering the first reverse osmosis tank 2 can kill bacteria, viruses and other microorganisms in the water, and improve the cleanliness and safety of pure water.

[0036] like Figure 1 As shown, a quartz sand filter device 5 is connected between the raw water tank 1 and the first reverse osmosis tank 2. The quartz sand filter device 5 includes a fifth water pump 51 connected to the raw water tank 1 and a quartz sand filter 52 connected to the fifth water pump 51. An activated carbon filter device 6 is connected between the quartz sand filter 52 and the first reverse osmosis tank 2. The activated carbon filter device 6 includes a sixth water pump 61 connected to the quartz sand filter 52 and an activated carbon filter 62 connected to the sixth water pump 61. The activated carbon filter 62 is connected to the first water pump 11. The activated carbon in the activated carbon filter 62 is coconut shell activated carbon.

[0037] The quartz sand filter device 5 performs pretreatment to remove large particles of impurities and suspended matter in the water, protecting the subsequent reverse osmosis membrane from clogging and wear. The water after quartz sand filtration is further deep-treated through the activated carbon filter device 6, utilizing the adsorption properties of activated carbon to remove organic matter, residual chlorine and other harmful substances in the water, thereby improving the water quality entering the reverse osmosis tank. This application uses the quartz sand filter device 5 and the activated carbon filter device 6 to pretreat the raw water, further improving the water quality entering the reverse osmosis tank, extending the service life of the reverse osmosis membrane, and at the same time improving the efficiency of pure water preparation.

[0038] The implementation principle of a two-stage reverse osmosis pure water equipment in an embodiment of the present application is: all water pumps are turned on, the raw water passes through the raw water tank 1, enters the quartz sand filter 52, removes large particle impurities and suspended matter in the water, and then flows into the activated carbon filter 62, and uses the adsorption properties of the activated carbon to remove organic matter, residual chlorine and other harmful substances in the water. The wastewater enters the first reverse osmosis tank 2 for reverse osmosis treatment, and the treated water enters the second reverse osmosis tank 3 for secondary treatment, and finally pure water is obtained and stored in the clean water tank 4; while the first reverse osmosis tank 2 is treating the wastewater, the high-concentration wastewater concentrated at the bottom of the first reverse osmosis tank 2 forms a circulation loop through the first water pipe 21, the fourth water pump 22 and the second water pipe 23, thereby improving the reverse osmosis membrane treatment effect.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A two-stage reverse osmosis pure water device, comprising a raw water tank (1), a first water pump (11) in communication with the raw water tank (1), a first reverse osmosis tank (2) in communication with the first water pump (11), a second water pump (12) in communication with the reverse osmosis membrane in the first reverse osmosis tank (2), a second reverse osmosis tank (3) in communication with the second water pump (12), a third water pump (13) in communication with the reverse osmosis membrane in the second reverse osmosis tank (3), and a clean water tank (4) in communication with the third water pump (13), characterized in that: The bottom of the first reverse osmosis tank (2) is connected to a first water pipe (21), a fourth water pump (22) connected to the first water pipe (21), and a second water pipe (23) connected to the fourth water pump (22); the second water pipe (23) is connected to the first reverse osmosis tank (2).

2. A two-stage reverse osmosis pure water equipment according to claim 1, characterized in that: The second water delivery pipe (23) is also connected to a water tank (24), and the water tank (24) is connected to a micro-nano bubble generator (25).

3. A two-stage reverse osmosis pure water equipment according to claim 2, characterized in that: The micro-nano bubble generator (25) is connected to an ozone generator (26).

4. A two-stage reverse osmosis pure water equipment according to claim 1, characterized in that: A quartz sand filtering device (5) is connected between the raw water tank (1) and the first reverse osmosis tank (2).

5. A two-stage reverse osmosis pure water equipment according to claim 4, characterized in that: The quartz sand filtering device (5) comprises a fifth water pump (51) in communication with the raw water tank (1) and a quartz sand filter (52) in communication with the fifth water pump (51), wherein the quartz sand filter (52) is in communication with the second water pump (12).

6. A two-stage reverse osmosis pure water equipment according to claim 5, characterized in that: An activated carbon filter device (6) is connected between the quartz sand filter (52) and the first reverse osmosis tank (2).

7. A two-stage reverse osmosis pure water equipment according to claim 6, characterized in that: The activated carbon filtering device (6) comprises a sixth water pump (61) in communication with the quartz sand filter (52) and an activated carbon filter (62) in communication with the sixth water pump (61), wherein the activated carbon filter (62) is in communication with the first water pump (11).

8. The double-stage reverse osmosis pure water equipment according to claim 7, characterized in that: The activated carbon in the activated carbon filter (62) is coconut shell activated carbon.

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