A reverse osmosis membrane disinfection device for water treatment

Abstract

The utility model belongs to the technical field of reverse osmosis membrane disinfection, and particularly relates to a reverse osmosis membrane disinfection device for water treatment, comprising a main pipe and a reverse osmosis membrane, wherein the reverse osmosis membrane is connected to the middle position of the main pipe, and the inner and outer ends of the main pipe are connected with a disinfection mechanism, wherein the disinfection mechanism comprises a disinfection unit and a disassembly unit, wherein the disassembly unit is arranged at the outer end of the reverse osmosis membrane, and the disassembly unit comprises a connecting pipe, a lower arc plate, a lower fixed plate, a threaded rod, a cylinder, an upper arc plate and an upper fixed plate. The reverse osmosis membrane disinfection device for water treatment, when disinfecting the reverse osmosis membrane, first closes the first valve and the second valve, opens the third valve, then opens the electric heating wire in the heating box to heat the water in the heating box, and then starts the first pump body to draw hot water from the heating box through the first branch pipe to flow into the first valve in the main pipe, and at the same time flows through the reverse osmosis membrane for sterilization and then flows back into the heating box.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membrane disinfection, in particular to a reverse osmosis membrane disinfection device for water treatment. Background Art

[0002] The physical filtration method commonly used in water treatment is to filter through a reverse osmosis membrane. The reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membranes, and is generally made of polymer materials. Such as cellulose acetate membranes, aromatic polyhydrazide membranes, and aromatic polyamide membranes, the diameter of the surface micropores is generally between 0.5 and 10 nm, and the size of the permeability is related to the chemical structure of the membrane itself; its principle is to use the pressure difference as the driving force to separate the solvent from the solution through a membrane separation operation, and to apply pressure to the feed liquid on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will reversely penetrate in the direction of natural penetration, thereby obtaining a permeated solvent, i.e., permeate, on the low-pressure side of the membrane; and a concentrated solution, i.e., concentrate, on the high-pressure side.

[0003] However, during water treatment, the wastewater may still contain a large number of bacteria. During filtration, some bacteria are intercepted by the reverse osmosis membrane and remain on the reverse osmosis membrane. Conventional flushing cannot effectively disinfect it. The existing technology can only perform high-temperature disinfection after disassembly. The disinfection process is time-consuming and labor-intensive, and the work efficiency is too low.

[0004] For example, a reverse osmosis membrane disinfection device for water treatment disclosed in Chinese patent CN215693234U disinfects the reverse osmosis membrane with high-temperature hot water, and can perform in-situ disinfection without dismantling it, greatly improving the disinfection efficiency; the disinfection process is carried out through a disinfection loop formed by a branch pipe, and hot water can flow in the reverse osmosis membrane under the action of a pressurized water pipe, while the reverse osmosis membrane is cleaned.

[0005] However, hot water alone cannot completely kill bacteria; residual bacteria can only be completely eliminated with disinfectant.

[0006] For this reason, we urgently need to provide a reverse osmosis membrane disinfection device for water treatment that can completely eliminate bacteria. Utility Model Content

[0007] The utility model aims to provide a reverse osmosis membrane disinfection device for water treatment, so as to solve the problem in the above background technology that only hot water cannot completely kill bacteria, and the residual bacteria need disinfectant water to be completely eliminated.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reverse osmosis membrane disinfection device for water treatment, comprising a main pipe and a reverse osmosis membrane, wherein the reverse osmosis membrane is connected to the middle position of the main pipe, and the inner and outer ends of the main pipe are connected with a disinfection mechanism, wherein the disinfection mechanism comprises a disinfection unit and a disassembly unit, wherein the disinfection unit is arranged at the outer end of the main pipe, and the disassembly unit is arranged at the outer end of the reverse osmosis membrane.

[0009] The disinfection unit includes a first branch pipe, a first pump body, a heating box, a heating wire, a second branch pipe, a second pump body, a liquid storage box, a liquid inlet pipe, a liquid outlet pipe, a sealing cover, a first valve, a second valve and a third valve. The first branch pipe is fixedly connected to the upper end of the main pipe, the first pump body is fixedly connected to the left side of the upper end inside the first branch pipe, the heating box is fixedly connected to the middle position of the upper end inside the first branch pipe, the heating wire is fixedly connected to the inner upper end of the heating box, the second branch pipe is fixedly connected to the lower end of the main pipe, the second pump body is fixedly connected to the left side of the lower end inside the second branch pipe, the liquid storage box is fixedly connected to the right side of the lower end inside the second branch pipe, the liquid inlet pipe is fixedly connected to the right side of the upper end inside the liquid storage box, the liquid outlet pipe is fixedly connected to the right side of the lower end inside the liquid storage box, the sealing cover is connected to the outer ends of the liquid inlet pipe and the liquid outlet pipe, the first valve is fixedly connected to the left and right ends of the main pipe, the second valve is fixedly connected to the left and right ends above the second branch pipe, and the third valve is fixedly connected to the left and right ends below the first branch pipe.

[0010] A further improvement is that the outer side of the upper end of the liquid inlet pipe and the outer side of the lower end of the liquid outlet pipe are provided with external threads, the inner side of the sealing cap is provided with internal threads, and the outer side of the upper end of the liquid inlet pipe and the outer side of the lower end of the liquid outlet pipe are threadedly connected to the inner side of the sealing cap. Thus, after the sealing cap is threadedly connected to the outer ends of the liquid inlet pipe and the liquid outlet pipe, the upper end of the liquid inlet pipe and the lower end of the liquid outlet pipe can be sealed.

[0011] A further improvement is that the disassembly and assembly unit includes a connecting pipe, a lower arc plate, a lower fixed plate, a threaded rod, a cylinder, an upper arc plate and an upper fixed plate, the connecting pipe is fixedly connected to the left and right sides of the reverse osmosis membrane, the lower arc plate is fixedly connected to the lower outer side of one end of the connecting pipe away from the reverse osmosis membrane, the lower fixed plate is fixedly connected to the front and rear ends above the outer side of the lower arc plate, the threaded rod is fixedly connected to the upper middle position of the lower fixed plate, the cylinder is connected to the outer end of the threaded rod, the upper arc plate is connected to the upper outer end of the connecting pipe, and the upper fixed plate is fixedly connected to the front and rear ends below the outer side of the upper arc plate.

[0012] A further improvement is that a sliding hole is provided in the middle of the upper fixing plate, and the outer side of the threaded rod is slidably connected to the inner side of the sliding hole. Thus, when the upper arc plate is connected to the outer upper end of the connecting tube and the upper fixing plate is moved to the upper end of the lower fixing plate, the threaded rod will pass through the outer side of the threaded rod, thus limiting the movement of the upper fixing plate and the upper arc plate.

[0013] A further improvement is that the inner side of the cylinder is provided with an internal thread, the outer side of the threaded rod is threadedly connected to the inner side of the cylinder, and the lower side of the cylinder is in contact with the upper side of the upper fixing plate. Thus, after the upper arc plate is placed on the upper end of the outer side of the connecting tube and the upper fixing plate passes through the threaded rod, the cylinder is threadedly connected to the outer side of the threaded rod until the lower side of the cylinder contacts the upper side of the upper fixing plate, so that the upper fixing plate can be fixed to the upper end of the lower fixing plate, and the upper arc plate can be fixed to the upper end of the outer side of the connecting tube.

[0014] A further improvement is that the outer side of the main pipe near the reverse osmosis membrane abuts against the inner side of the lower arc plate and the upper arc plate. Therefore, after the reverse osmosis membrane is placed between the main pipes and the connecting pipes on both sides thereof contact the main pipes, the upper arc plate is installed to the upper end of the lower arc plate, so that the end of the main pipe near the reverse osmosis membrane is clamped and fixed to the inner side of the lower arc plate and the upper arc plate, so that the reverse osmosis membrane is installed between the main pipes.

[0015] A further improvement is that the inner sides of the lower arc plate and the upper arc plate are fixedly connected with rubber pads, so that after the connecting pipe and the main pipe are connected by the lower arc plate and the upper arc plate, the rubber pads on the inner sides of the lower arc plate and the upper arc plate contact the outer contact point of the main pipe and the connecting pipe, so that the contact point of the main pipe and the connecting pipe remains sealed, preventing water from seeping out from the contact point of the connecting pipe and the main pipe.

[0016] In summary, the present application discloses a reverse osmosis membrane disinfection device for water treatment.

[0017] The technical solution closes the first valve and the second valve, opens the third valve, and then turns on the heating wire in the heating box to heat the water in the heating box, and then starts the first pump body to allow the hot water to flow from the heating box through the first branch pipe into the first valve in the main pipe, and at the same time flows through the reverse osmosis membrane for sterilization before flowing back into the heating box, and this process is repeated repeatedly to complete the sterilization of the reverse osmosis membrane with hot water; by closing the first valve and the third valve, opening the second valve and the second pump body, the disinfectant water in the liquid storage tank is pumped out through the second branch pipe and flows into the main pipe, and when passing through the reverse osmosis membrane, it is disinfected before flowing back into the liquid storage tank, and this process is repeated repeatedly to complete the sterilization of the reverse osmosis membrane with the disinfectant water, thereby achieving the double disinfection of the reverse osmosis membrane with hot water and disinfectant water, so that the reverse osmosis membrane can be completely disinfected and sterilized.

[0018] Furthermore, by rotating the cylinder to remove it from the outside of the threaded rod, and then removing the upper arc plate and the upper fixed plate from the upper end of the connecting pipe, the connecting pipe can be removed from between the main pipes to complete the disassembly of the reverse osmosis membrane, thereby facilitating the disassembly of the reverse osmosis membrane for inspection and replacement when it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second branch pipe of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the heating box of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the disassembly and assembly unit of the utility model.

[0023] In the figure: 1, main pipe; 2, reverse osmosis membrane; 301, first branch pipe; 302, first pump body; 303, heating box; 304, heating wire; 305, second branch pipe; 306, second pump body; 307, liquid storage box; 308, liquid inlet pipe; 309, liquid outlet pipe; 310, sealing cover; 311, first valve; 312, second valve; 313, third valve; 401, connecting pipe; 402, lower arc plate; 403, lower fixed plate; 404, threaded rod; 405, cylinder; 406, upper arc plate; 407, upper fixed plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A reverse osmosis membrane disinfection device for water treatment comprises a main pipe 1 and a reverse osmosis membrane 2, wherein the reverse osmosis membrane 2 is connected to the middle position of the main pipe 1, and the inner and outer ends of the main pipe 1 are connected with a disinfection mechanism, wherein the disinfection mechanism comprises a disinfection unit and a disassembly unit, wherein the disinfection unit is arranged at the outer end of the main pipe 1, and the disassembly unit is arranged at the outer end of the reverse osmosis membrane 2.

[0028] The disinfection unit includes a first branch pipe 301, a first pump body 302, a heating box 303, a heating wire 304, a second branch pipe 305, a second pump body 306, a liquid storage box 307, a liquid inlet pipe 308, a liquid outlet pipe 309, a sealing cover 310, a first valve 311, a second valve 312 and a third valve 313. The first branch pipe 301 is fixedly connected to the upper end of the main pipe 1, the first pump body 302 is fixedly connected to the left of the upper end of the first branch pipe 301, the heating box 303 is fixedly connected to the middle position of the upper end of the first branch pipe 301, the heating wire 304 is fixedly connected to the inner upper end of the heating box 303, and the second branch pipe 305 is fixedly connected to the main pipe 1. At the lower end of the tube 1, the second pump body 306 is fixedly connected to the left side of the lower end of the second branch pipe 305, the liquid storage tank 307 is fixedly connected to the right side of the lower end of the second branch pipe 305, the liquid inlet pipe 308 is fixedly connected to the right side of the upper end of the liquid storage tank 307, the liquid outlet pipe 309 is fixedly connected to the right side of the lower end of the liquid storage tank 307, the cover 310 is connected to the outer ends of the liquid inlet pipe 308 and the liquid outlet pipe 309, the outer side of the upper end of the liquid inlet pipe 308 and the outer side of the lower end of the liquid outlet pipe 309 are provided with external threads, the inner side of the cover 310 is provided with internal threads, and the outer side of the upper end of the liquid inlet pipe 308 and the outer side of the lower end of the liquid outlet pipe 309 are threadedly connected to the inner side of the cover 310. Therefore, after the cover 310 is threadedly connected to the outer ends of the liquid inlet pipe 308 and the liquid outlet pipe 309, the upper end of the liquid inlet pipe 308 and the lower end of the liquid outlet pipe 309 can be closed.

[0029] The first valve 311 is fixedly connected to the left and right ends of the main pipe 1 , the second valve 312 is fixedly connected to the left and right ends at the upper part of the second branch pipe 305 , and the third valve 313 is fixedly connected to the left and right ends at the lower part of the first branch pipe 301 .

[0030] Embodiment 2:

[0031] On the basis of the first embodiment: the disassembly unit includes a connecting pipe 401, a lower arc plate 402, a lower fixed plate 403, a threaded rod 404, a cylinder 405, an upper arc plate 406 and an upper fixed plate 407, the connecting pipe 401 is fixedly connected to the left and right sides of the reverse osmosis membrane 2, the lower arc plate 402 is fixedly connected to the outer side and lower side of the connecting pipe 401 away from the reverse osmosis membrane 2, the lower fixed plate 403 is fixedly connected to the front and rear ends above the outer side of the lower arc plate 402, the threaded rod 404 is fixedly connected to the upper middle position of the lower fixed plate 403, the cylinder 405 is connected to the outer end of the threaded rod 404, the upper arc plate 406 is connected to the outer upper end of the connecting pipe 401, and the upper fixed plate 407 is fixedly connected to the front and rear ends below the outer side of the upper arc plate 406. A sliding hole is opened in the middle position inside the upper fixed plate 407, and the outer side of the threaded rod 404 is slidably connected to the inner side of the sliding hole. Therefore, when the upper arc plate 406 is connected to the outer upper end of the connecting tube 401 and the upper fixed plate 407 is moved to the upper end of the lower fixed plate 403, the threaded rod 404 will pass through the outer side of the threaded rod 404, thereby limiting the movement of the upper fixed plate 407 and the upper arc plate 406.

[0032] The inner side of the cylinder 405 is provided with an internal thread, the outer side of the threaded rod 404 is threadedly connected to the inner side of the cylinder 405, and the lower side of the cylinder 405 is in contact with the upper side of the upper fixing plate 407. Thus, after the upper arc plate 406 is placed on the upper end of the outer side of the connecting tube 401 and the upper fixing plate 407 passes through the threaded rod 404, the cylinder 405 is threadedly connected to the outer side of the threaded rod 404 until the lower side of the cylinder 405 contacts the upper side of the upper fixing plate 407, so that the upper fixing plate 407 can be fixed to the upper end of the lower fixing plate 403, and the upper arc plate 406 can be fixed to the upper end of the outer side of the connecting tube 401.

[0033] The outer side of the end of the main pipe 1 close to the reverse osmosis membrane 2 abuts against the inner side of the lower arc plate 402 and the upper arc plate 406. Therefore, after the reverse osmosis membrane 2 is placed between the main pipes 1 and the connecting pipes 401 on both sides thereof contact the main pipes 1, the upper arc plate 406 is installed to the upper end of the lower arc plate 402, so that the end of the main pipe 1 close to the reverse osmosis membrane 2 can be clamped and fixed to the inner side of the lower arc plate 402 and the upper arc plate 406, so that the reverse osmosis membrane 2 is installed between the main pipes 1.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: the inner sides of the lower arc plate 402 and the upper arc plate 406 are fixedly connected with rubber pads. Therefore, after the connecting pipe 401 and the main pipe 1 are connected through the lower arc plate 402 and the upper arc plate 406, the rubber pads on the inner sides of the lower arc plate 402 and the upper arc plate 406 contact the outer contact point of the main pipe 1 and the connecting pipe 401, so that the contact point of the main pipe 1 and the connecting pipe 401 is kept sealed, preventing water from seeping out from the contact point of the connecting pipe 401 and the main pipe 1.

[0036] Working principle: When the reverse osmosis membrane 2 is disinfected, first close the first valve 311 and the second valve 312, open the third valve 313, and then open the heating wire 304 in the heating box 303 to heat the water in the heating box 303, and then start the first pump body 302 to pump hot water from the heating box 303 through the first branch pipe 301 and flow into the first valve 311 in the main pipe 1. At the same time, it flows through the reverse osmosis membrane 2 for sterilization and then flows back into the heating box 303. Then close the first valve 311 and the third valve 313, open the second valve 312 and the second pump body 306, pump the disinfectant water in the liquid storage tank 307 out through the second branch pipe 305 and flow into the main pipe 1. When passing through the reverse osmosis membrane 2, it is disinfected and then flows back into the liquid storage tank 307, completing the double disinfection of the reverse osmosis membrane 2.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A reverse osmosis membrane disinfection device for water treatment, comprising a main pipe (1) and a reverse osmosis membrane (2), wherein the reverse osmosis membrane (2) is connected to the middle position of the main pipe (1), characterized in that: The inner and outer ends of the main pipe (1) are connected to a disinfection mechanism, the disinfection mechanism comprising a disinfection unit and a disassembly unit, the disinfection unit is arranged at the outer end of the main pipe (1), and the disassembly unit is arranged at the outer end of the reverse osmosis membrane (2); The disinfection unit comprises a first branch pipe (301), a first pump body (302), a heating box (303), a heating wire (304), a second branch pipe (305), a second pump body (306), a liquid storage box (307), a liquid inlet pipe (308), a liquid outlet pipe (309), a sealing cover (310), a first valve (311), a second valve (312) and a third valve (313), wherein the first branch pipe (301) is fixedly connected to the upper end of the main pipe (1), the first pump body (302) is fixedly connected to the left side of the upper end of the first branch pipe (301), the heating box (303) is fixedly connected to the middle position of the upper end of the first branch pipe (301), the heating wire (304) is fixedly connected to the inner upper end of the heating box (303), the second branch pipe (305) is fixedly connected to the inner upper end of the heating box (303), The second pump body (306) is connected to the lower end of the main pipe (1), the second pump body (306) is fixedly connected to the left side of the lower end of the second branch pipe (305), the liquid storage tank (307) is fixedly connected to the right side of the lower end of the second branch pipe (305), the liquid inlet pipe (308) is fixedly connected to the right side of the upper end of the liquid storage tank (307), the liquid outlet pipe (309) is fixedly connected to the right side of the lower end of the liquid storage tank (307), the sealing cover (310) is connected to the outer ends of the liquid inlet pipe (308) and the liquid outlet pipe (309), the first valve (311) is fixedly connected to the left and right ends of the main pipe (1), the second valve (312) is fixedly connected to the left and right ends of the upper part of the second branch pipe (305), and the third valve (313) is fixedly connected to the left and right ends of the lower part of the first branch pipe (301).

2. A reverse osmosis membrane disinfection device for water treatment according to claim 1, characterized in that: The outer side of the upper end of the liquid inlet pipe (308) and the outer side of the lower end of the liquid outlet pipe (309) are provided with external threads, and the inner side of the sealing cover (310) is provided with internal threads. The outer side of the upper end of the liquid inlet pipe (308) and the outer side of the lower end of the liquid outlet pipe (309) are connected to the inner side of the sealing cover (310) by threads.

3. A reverse osmosis membrane disinfection device for water treatment according to claim 1, characterized in that: The disassembly and assembly unit comprises a connecting pipe (401), a lower arc plate (402), a lower fixed plate (403), a threaded rod (404), a cylinder (405), an upper arc plate (406) and an upper fixed plate (407); the connecting pipe (401) is fixedly connected to the left and right sides of the reverse osmosis membrane (2); the lower arc plate (402) is fixedly connected to the lower outer side of one end of the connecting pipe (401) away from the reverse osmosis membrane (2); the lower fixed plate (403) is fixedly connected to the front and rear ends above the outer side of the lower arc plate (402); the threaded rod (404) is fixedly connected to the middle position of the upper side of the lower fixed plate (403); the cylinder (405) is connected to the outer end of the threaded rod (404); the upper arc plate (406) is connected to the upper outer end of the connecting pipe (401); and the upper fixed plate (407) is fixedly connected to the front and rear ends below the outer side of the upper arc plate (406).

4. A reverse osmosis membrane disinfection device for water treatment according to claim 3, characterized in that: A sliding hole is provided in the middle of the upper fixing plate (407), and the outer side of the threaded rod (404) is slidably connected to the inner side of the sliding hole.

5. A reverse osmosis membrane disinfection device for water treatment according to claim 3, characterized in that: The inner side of the cylinder (405) is provided with an internal thread, the outer side of the threaded rod (404) is threadedly connected to the inner side of the cylinder (405), and the lower side of the cylinder (405) is in contact with the upper side of the upper fixing plate (407).

6. A reverse osmosis membrane disinfection device for water treatment according to claim 3, characterized in that: The outer side of one end of the main pipe (1) close to the reverse osmosis membrane (2) abuts against the inner sides of the lower arc plate (402) and the upper arc plate (406).

7. A reverse osmosis membrane disinfection device for water treatment according to claim 3, characterized in that: Rubber pads are fixedly connected to the inner sides of the lower arc-shaped plate (402) and the upper arc-shaped plate (406).

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