Nanofiltration membrane water purification equipment

Abstract

The utility model belongs to the technical field of water purification equipment, and particularly relates to nanofiltration membrane water purification equipment which comprises a base, a filtering mechanism is arranged above the base, and a nanofiltration membrane purification mechanism is arranged on one side of the filtering mechanism. A nanofiltration membrane purification mechanism is arranged, so that a good filtering effect is effectively obtained, an oxygen assembly and a grid plate which are arranged on the inner side of the box body are used for filtering, and a third water outlet pipe arranged below the box body is connected with a nanofiltration membrane cylinder; meanwhile, the water body is simultaneously filtered through a nanofiltration membrane assembly mounted on the inner side of the nanofiltration membrane cylinder and a permeation liquid core column, and a corrosion-resistant cylinder cover and a corrosion-resistant sealing cylinder are arranged at two ends of the nanofiltration membrane cylinder, so that high-quality filtration of the water body in the cylinder is ensured, the filtered purified water body flows out of the purified water tank, the filtering effect is ensured, the corrosion resistance of the equipment is improved, and the service life of the equipment is prolonged. Water seepage of equipment can be effectively prevented, the leakproofness of the equipment can be improved, and the nanofiltration efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification equipment, and specifically relates to a nanofiltration membrane water purification equipment. Background Art

[0002] Nanofiltration membrane is a functional semipermeable membrane with a pore size of more than 1nm that allows solvent molecules or certain low molecular weight solutes or low-valent ions to pass through. It is a special and promising separation membrane variety, named because it can intercept substances of about nanometer size. It intercepts organic matter with a molecular weight of about 150-500, and has an ability to intercept soluble salts of 2-98%. The desalination of monovalent anion salt solutions is lower than that of high-valent anion salt solutions. It is used to remove organic matter and color from surface water, remove hardness from groundwater, partially remove soluble salts, concentrate fruit juice, and separate useful substances in medicines.

[0003] In the existing related technologies, the filtration equipment often has multiple filter membranes built into a water flow channel to achieve the purpose of multi-stage filtration. In actual use, due to the filtration equipment and pressurizing equipment, it is often impossible to effectively obtain a good filtration effect, so there is an urgent need to design a nanofiltration membrane water purification equipment to deal with these problems. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the utility model discloses a nanofiltration membrane water purification device.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A nanofiltration membrane water purification device comprises a base, a filtering mechanism is arranged above the base, and a nanofiltration membrane purification mechanism is arranged on one side of the filtering mechanism.

[0007] The nanofiltration membrane purification mechanism includes a box body arranged on one side of the filtering mechanism, an oxygen component is arranged on the box body, a grate plate is arranged below the oxygen component and installed inside the box body, a third water outlet pipe is installed below the box body, a nanofiltration membrane cylinder is arranged at one end of the third water outlet pipe, a nanofiltration membrane component is arranged inside the nanofiltration membrane cylinder, a permeate core column is arranged inside the nanofiltration membrane component, a corrosion-resistant cylinder cover is installed at one end of the third water outlet pipe, a corrosion-resistant sealing cylinder is installed at one end of the nanofiltration membrane cylinder, and a clean water tank is installed at the other end of the corrosion-resistant sealing cylinder.

[0008] Preferably, the filtering mechanism includes a water inlet pipe arranged on one side above the base, a first filter cartridge is arranged at one end of the water inlet pipe, a first pressure pump is installed on the first filter cartridge, a first filter element assembly is arranged in the first filter cartridge, a second filter cartridge is arranged on one side of the first filter cartridge, a second filter element assembly is arranged on the inner side of the second filter cartridge, a second water outlet pipe is arranged below the second filter cartridge, a first water outlet pipe is arranged between the first filter cartridge and the second filter cartridge, and a second pressure pump is installed on the outer surface of the first water outlet pipe.

[0009] Preferably, the oxygen assembly comprises an oxygen pump disposed on the box body, and a gas branch pipe is installed on the oxygen pump.

[0010] Preferably, the nanofiltration membrane assembly comprises a first screen membrane arranged inside the nanofiltration membrane cylinder, a diaphragm net is installed inside the first screen membrane, and a second screen membrane is installed inside the diaphragm net.

[0011] Preferably, the first filter element assembly comprises an activated carbon layer disposed in the first filter cartridge, a coarse sand layer is disposed above the activated carbon layer, and a coal slag layer is disposed above the coarse sand layer.

[0012] Preferably, the second filter element assembly includes a filter cotton layer arranged on the inner side of the second filter cartridge, and a quartz sand layer is arranged above the filter cotton layer.

[0013] The beneficial effects are:

[0014] The utility model discloses a nanofiltration membrane water purification device. A good filtering effect is effectively obtained by setting up a nanofiltration membrane purification mechanism. Filtration is carried out through an oxygen component and a grate plate arranged on the inner side of a box body, and the water is connected to a nanofiltration membrane cartridge through a third water outlet pipe installed under the box body. At the same time, water is filtered simultaneously through a nanofiltration membrane component and a permeate core column installed on the inner side of the nanofiltration membrane cartridge, and a corrosion-resistant cartridge cover and a corrosion-resistant sealing cartridge are arranged at both ends of the nanofiltration membrane cartridge to ensure high-quality filtration of the water in the cartridge. The filtered clean water flows out through a clean water tank, which ensures the filtering effect, improves the corrosion resistance of the equipment, can effectively prevent water seepage in the equipment, helps to improve the sealing of the equipment, and improves the filtering efficiency of the nanofiltration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0016] Figure 2 It is a front view structural schematic diagram of the utility model;

[0017] Figure 3 It is a first structural schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the nanofiltration membrane cartridge structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the front cross-sectional structure of the nanofiltration membrane cartridge of the utility model.

[0020] In the figure: 1. base;

[0021] 2. Filter mechanism; 201. Water inlet pipe; 202. First pressure pump; 203. First filter cartridge; 204. Activated carbon layer; 205. Coarse sand layer; 206. Cinder layer; 207. First water outlet pipe; 2071. Second pressure pump; 208. Second filter cartridge; 209. Filter cotton layer; 210. Quartz sand layer; 211. Second water outlet pipe;

[0022] 3. Nanofiltration membrane purification mechanism; 301. Box body; 302. Oxygen pump; 303. Gas branch pipe; 304. Grate plate; 305. Third water outlet pipe; 306. Corrosion-resistant cylinder cover; 307. Permeate core column; 308. Nanofiltration membrane cylinder; 3081. First screen membrane; 3082. Diaphragm net; 3083. Second screen membrane; 309. Corrosion-resistant sealing cylinder; 310. Clean water tank. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Reference Figure 1-5 The utility model provides an embodiment: a nanofiltration membrane water purification device, comprising a base 1, a filtering mechanism 2 is arranged above the base 1, and a nanofiltration membrane purification mechanism 3 is arranged on one side of the filtering mechanism 2.

[0027] In this embodiment: the filter mechanism 2 includes a water inlet pipe 201 arranged on one side above the base 1, a first filter cartridge 203 is arranged at one end of the water inlet pipe 201, a first pressure pump 202 is installed on the first filter cartridge 203, a first filter element assembly is arranged in the first filter cartridge 203, a second filter cartridge 208 is arranged on one side of the first filter cartridge 203, a second filter element assembly is arranged inside the second filter cartridge 208, a second water outlet pipe 211 is arranged below the second filter cartridge 208, a first water outlet pipe 207 is arranged between the first filter cartridge 203 and the second filter cartridge 208, and the first filter cartridge 203, the second filter cartridge 208 and the first water outlet pipe 207 are connected through a sealing flange. A second pressure pump 2071 is installed on the outer surface of the first water outlet pipe 207. The first filter element assembly includes an activated carbon layer 204 arranged in the first filter cartridge 203, a coarse sand layer 205 is arranged above the activated carbon layer 204, and a coal slag layer 206 is arranged above the coarse sand layer 205. The second filter element assembly includes a filter cotton layer 209 disposed inside the second filter cartridge 208, and a quartz sand layer 210 is disposed above the filter cotton layer 209. Both the first filter element assembly and the second filter element assembly are used to filter impurities in water.

[0028] In this embodiment: the nanofiltration membrane purification mechanism 3 includes a box 301 arranged on one side of the filtering mechanism 2, an oxygen assembly is arranged on the box 301, a grate plate 304 is arranged below the oxygen assembly and installed inside the box 301, a manganese sand filter material is arranged inside the grate plate 304, and the manganese sand filter material has a manganese dioxide content of 40-55%, which can effectively remove iron and manganese impurities in water. A third water outlet pipe 305 is installed below the box 301, a nanofiltration membrane cylinder 308 is arranged at one end of the third water outlet pipe 305, a nanofiltration membrane assembly is arranged inside the nanofiltration membrane cylinder 308, and a permeate core column 307 is arranged inside the nanofiltration membrane assembly, and the permeate core column 307 is used to filter the water quality, which is a prior art. A corrosion-resistant cylinder cover 306 is installed at one end of the third water outlet pipe 305, a corrosion-resistant sealing cylinder 309 is installed at one end of the nanofiltration membrane cylinder 308, and a clean water tank 310 is installed at the other end of the corrosion-resistant sealing cylinder 309. The oxygen assembly includes an oxygen pump 302 disposed on the box body 301, and a gas branch pipe 303 is installed on the oxygen pump 302. The nanofiltration membrane assembly includes a first screen membrane 3081 disposed inside the nanofiltration membrane cylinder 308, a diaphragm net 3082 is installed inside the first screen membrane 3081, and a second screen membrane 3083 is installed inside the diaphragm net 3082. Small holes are evenly opened on the tube wall of the gas branch pipe 303, and the aperture of the small holes is smaller than the grain diameter of the manganese sand filter material by 1.0 to 2.0 mm, and will not cause blockage of the aperture. Through the oxygen pump 302 and the gas branch pipe 303 with openings, the water in the manganese sand filter material is fully contacted with oxygen, so that the divalent iron and divalent manganese in the water flowing through the manganese sand filter material are reacted and removed. The nanofiltration membrane cylinder 308 is connected to the corrosion-resistant cylinder cover 306 and the corrosion-resistant sealing cylinder 309 by connecting the sealing threads.

[0029] Working principle: When in use, first connect the water inlet pipe 201 to the water inlet tank, start the first pressure pump 202 to increase the pressure on the water quality, when the water flows through the activated carbon layer 204 and the coarse sand layer 205 in the first filter cartridge 203, some odors or large particles in the water will be filtered out by the activated carbon layer 204 and the coarse sand layer 205, and pass through the coal slag layer 206, some heavy metal ions or mud and rust in the water will be filtered out by the coal slag layer 206, when the water flows into the second filter cartridge 208 through the first water outlet pipe 207, start the second pressure pump 2071, and the filtered water flows through the filter cotton layer 209 and the quartz sand layer 210, and some heavy metal ion colloidal particles in the water will be filtered out by the quartz sand layer 210. When the water flows from The second water outlet pipe 211 flows out, and the oxygen pump 302 and the gas branch pipe 303 are started to oxygenate the filtered water. A manganese sand filter material is arranged in the grate plate 304. The manganese dioxide content in the manganese sand filter material is 40-55%, which can effectively remove iron and manganese impurities in the water. Small holes are evenly opened on the tube wall of the gas branch pipe 303. Through the oxygen pump 302 and the gas branch pipe 303 with openings, the water in the manganese sand filter material is fully contacted with oxygen, so that the divalent iron and divalent manganese in the water flowing through the manganese sand filter material are reacted and removed. The water body after the impurities are removed passes through the nanofiltration membrane cartridge 308, the nanofiltration membrane assembly and the permeate core column 307 for final purification, and the water body flows out through the clean water tank 310, thereby improving the filtration efficiency of the nanofiltration.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nanofiltration membrane water purification device, characterized in that: It comprises a base (1), a filtering mechanism (2) is arranged above the base (1), and a nanofiltration membrane purification mechanism (3) is arranged on one side of the filtering mechanism (2); The nanofiltration membrane purification mechanism (3) comprises a box (301) arranged on one side of the filtering mechanism (2), an oxygen assembly being arranged on the box (301), a grate plate (304) being arranged below the oxygen assembly and being installed inside the box (301), a third water outlet pipe (305) being installed below the box (301), a nanofiltration membrane cartridge (308) being arranged at one end of the third water outlet pipe (305), a nanofiltration membrane assembly being arranged inside the nanofiltration membrane cartridge (308), a permeate core column (307) being arranged inside the nanofiltration membrane assembly, a corrosion-resistant cartridge cover (306) being installed at one end of the third water outlet pipe (305), a corrosion-resistant sealing cartridge (309) being installed at one end of the nanofiltration membrane cartridge (308), and a clean water tank (310) being installed at the other end of the corrosion-resistant sealing cartridge (309).

2. A nanofiltration membrane water purification device according to claim 1, characterized in that: The filtering mechanism (2) comprises a water inlet pipe (201) arranged on one side above the base (1); a first filter cartridge (203) is arranged at one end of the water inlet pipe (201); a first pressure pump (202) is installed on the first filter cartridge (203); a first filter element assembly is arranged inside the first filter cartridge (203); a second filter cartridge (208) is arranged on one side of the first filter cartridge (203); a second filter element assembly is arranged inside the second filter cartridge (208); a second water outlet pipe (211) is arranged below the second filter cartridge (208); a first water outlet pipe (207) is arranged between the first filter cartridge (203) and the second filter cartridge (208); and a second pressure pump (2071) is installed on the outer surface of the first water outlet pipe (207).

3. A nanofiltration membrane water purification device according to claim 1, characterized in that: The oxygen assembly comprises an oxygen pump (302) arranged on the box body (301), and a gas branch pipe (303) is installed on the oxygen pump (302).

4. A nanofiltration membrane water purification device according to claim 1, characterized in that: The nanofiltration membrane assembly comprises a first sieve membrane (3081) arranged on the inner side of the nanofiltration membrane cylinder (308), a diaphragm net (3082) is installed inside the first sieve membrane (3081), and a second sieve membrane (3083) is installed inside the diaphragm net (3082).

5. A nanofiltration membrane water purification device according to claim 2, characterized in that: The first filter element assembly comprises an activated carbon layer (204) arranged in the first filter cartridge (203), a coarse sand layer (205) is arranged above the activated carbon layer (204), and a coal slag layer (206) is arranged above the coarse sand layer (205).

6. A nanofiltration membrane water purification device according to claim 2, characterized in that: The second filter element assembly comprises a filter cotton layer (209) arranged inside the second filter cartridge (208), and a quartz sand layer (210) is arranged above the filter cotton layer (209).

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