Reverse osmosis equipment for reuse of reclaimed water

Abstract

The utility model discloses reverse osmosis equipment for recycling reclaimed water, which comprises a treatment unit, the treatment unit comprises a base, a high-pressure pump and a connecting frame, the high-pressure pump and the connecting frame are fixedly connected to the top of the base, the outer wall of the high-pressure pump is fixedly communicated with a high-pressure pipe, and the treatment unit further comprises a treatment assembly for pretreating the reclaimed water and a reverse osmosis unit, the membrane shell is fixedly connected to the inner wall of the connecting frame, the top and the bottom of the membrane shell are fixedly communicated with a water inlet pipe and a water outlet pipe respectively, the high-pressure pipe is communicated with the water inlet pipe, the bottom of an inner cavity of the membrane shell is fixedly connected with a pure water pipe, the pure water pipe is communicated with the water outlet pipe, and a plurality of round holes are formed in the outer wall of the pure water pipe. According to the utility model, the reclaimed water can be preliminarily classified and filtered through the plurality of filter sheets, and is fully contacted with the reverse osmosis membrane, so that the phenomenon that impurities block the end part of the reverse osmosis membrane is avoided, and the reverse osmosis effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis equipment, in particular to a reverse osmosis equipment for recycling reclaimed water. Background Art

[0002] Recycled water refers to treated domestic sewage, industrial wastewater or rainwater, etc., whose water quality is between clean water and sewage. After reaching certain water quality standards, it can be reused as non-drinking water within a certain range. The utilization of recycle water is the recycling of the treated water. The utilization of recycle water can not only obtain a part of the available water resources mainly concentrated in the city, but also embodies the principle of "high-quality use, low-quality use". The utilization of recycle water is also the main way to protect the environment and prevent water pollution, and is an important part of social and economic sustainable development.

[0003] When treating grey water, the RO module inside the reverse osmosis device is usually used to intercept and filter impurities and bacteria in the grey water. Since the existing reverse osmosis membrane is in close contact with the inner wall of the membrane shell, when the grey water enters the membrane shell, it will first contact the end of the reverse osmosis membrane and undergo reverse osmosis filtration. If this continues for a long time, excessive impurities will accumulate at the end of the reverse osmosis membrane near the water inlet, which will gradually reduce the water inlet volume and make the reverse osmosis membrane prone to local blockage, which is not conducive to use. Therefore, a reverse osmosis device for grey water reuse is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing reverse osmosis equipment for recycling reclaimed water, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a reverse osmosis device for reclaimed water reuse, which is suitable for solving the problem that during the long-term reverse osmosis process, one end of the reverse osmosis membrane close to the water inlet is easily locally blocked by impurities, making it difficult to use.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a reverse osmosis device for recycling reclaimed water, comprising:

[0008] A processing unit comprising a base, a high-pressure pump fixedly connected to the top of the base, and a connecting frame, wherein the outer wall of the high-pressure pump is fixedly connected to a high-pressure pipe, and the processing unit further comprises a processing component for pre-treating the reclaimed water;

[0009] The utility model relates to a kind of reverse osmosis equipment for reclaimed water, including membrane shell fixedly connected on the inner wall of connecting frame, the top and bottom of the membrane shell are fixedly connected with water inlet pipe and water outlet pipe respectively, the high-pressure pipe is communicated with water inlet pipe, the bottom of the cavity of the membrane shell is fixedly connected with pure water pipe, the pure water pipe is communicated with water outlet pipe, multiple round holes are opened in the outer wall of the pure water pipe, the bottom of the inner wall of the membrane shell is fixedly connected with reverse osmosis membrane that is wound on pure water pipe, the top of the pure water pipe and reverse osmosis membrane is fixedly connected with sealing sheet in common, multiple vertical distribution's sliding grooves are opened in the inner wall of the membrane shell, multiple filter sheets are slidably arranged in the inner wall of each sliding groove, and the top of each filter sheet is provided with a round port that matches reverse osmosis membrane.

[0010] As a preferred scheme of the reverse osmosis equipment for reclaimed water, the processing assembly includes multiple filters fixedly connected on the top of the base, adjacent two filters are communicated through a connecting pipe, the outer wall of one of the filters is fixedly communicated with a reclaimed water pipe, and the filter and the high-pressure pump are fixedly communicated with a conveying pipe.

[0011] As a preferred scheme of the reverse osmosis equipment for reclaimed water, the side wall of the membrane shell is fixedly connected with a sewage pipe, and the outer walls of the sewage pipe and the water outlet pipe are sleeved with valves.

[0012] As a preferred scheme of the reverse osmosis equipment for reclaimed water, the outer wall of the high-pressure pipe is sleeved with a one-way valve, one side of the water inlet pipe is fixedly connected with a blowdown pipe, and the outer wall of the blowdown pipe is sleeved with a valve.

[0013] As a preferred scheme of the reverse osmosis equipment for reclaimed water, the top of the membrane shell is sealed and slidably penetrated with a T-shaped rod, the T-shaped rod vertically penetrates multiple filter sheets and is fixedly connected with each filter sheet.

[0014] As a preferred scheme of the reverse osmosis equipment for reclaimed water, one side of the membrane shell is provided with a transparent window, and one side of the connecting frame is provided with a notch matching the transparent window.

[0015] The utility model has the advantages that the inner cavity of the membrane shell is evenly divided by multiple filter sheets, so that the reclaimed water can pass through each filter sheet in turn, thereby the reclaimed water can be filtered in stages and fully contact with the reverse osmosis membrane, so as to avoid the phenomenon that impurities are blocked at the end of the reverse osmosis membrane, thereby improving the reverse osmosis effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of the reverse osmosis equipment for reclaimed water reuse proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the processing component structure proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the reverse osmosis unit structure proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of the interior of the structural membrane shell proposed in the present invention;

[0021] Figure 5 This is a schematic diagram of the pure water pipe structure proposed by the utility model. Description of the drawings:

[0023] 100. Treatment unit; 101. Base; 102. High-pressure pump; 103. Connecting frame; 104. High-pressure pipe; 105. Treatment assembly; 1051. Filter; 1052. Connecting pipe; 1053. Recycled water pipe; 1054. Delivery pipe; 200. Reverse osmosis unit; 201. Membrane shell; 202. Water inlet pipe; 203. Water outlet pipe; 204. Pure water pipe; 205. Reverse osmosis membrane; 206. Sealing disc; 207. Chute; 208. Filter disc; 209. Sewage pipe; 210. One-way valve; 211. Sewage pipe; 212. T-bar; 213. Transparent window. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein is intended to mean a specific feature, structure, characteristic, or combination of features and characteristics described herein that is included in at least one implementation of the present application. The various appearances of "in one embodiment" or "in an embodiment" in the specification are not necessarily all referring to the same embodiment, although they can.

[0027] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0028] Embodiment

[0029] Reference Figures 1-5 For an embodiment of the present application, a kind of reclaimed water reuse reverse osmosis equipment is provided, comprising: processing unit 100 and reverse osmosis unit 200;

[0030] Wherein, processing unit 100 includes base 101 and fixedly connected on the top of base 101 high pressure pump 102 and connecting frame 103, the outer wall of high pressure pump 102 is fixedly connected with high pressure pipe 104, processing unit 100 further includes processing assembly 105 for pretreating reclaimed water;

[0031] Reverse osmosis unit 200 includes membrane shell 201 fixedly connected on the inner wall of connecting frame 103, the top and bottom of membrane shell 201 are fixedly connected with water inlet pipe 202 and water outlet pipe 203 respectively, high pressure pipe 104 and water inlet pipe 202 are communicated, the bottom of the inner cavity of membrane shell 201 is fixedly connected with pure water pipe 204, pure water pipe 204 is communicated with water outlet pipe 203, a plurality of round holes are formed in the outer wall of pure water pipe 204, the bottom of the inner wall of membrane shell 201 is fixedly connected with reverse osmosis membrane 205 wound on pure water pipe 204, the top of pure water pipe 204 and reverse osmosis membrane 205 is fixedly connected with sealing sheet 206, a plurality of vertical distribution of chute 207 are formed in the inner wall of membrane shell 201, a plurality of filter sheets 208 are slidably arranged in the inner wall of each chute 207, and a round port matching reverse osmosis membrane 205 is formed in the top of each filter sheet 208.

[0032] Wherein, processing assembly 105 includes a plurality of filters 1051 fixedly connected on the top of base 101, adjacent two filters 1051 are communicated by connecting pipe 1052, the outer wall of one of filters 1051 is fixedly communicated with reclaimed water pipe 1053, and the fixed communication between one of filters 1051 and high pressure pump 102 has conveying pipe 1054.

[0033] The plurality of filters 1051 can independently store quartz sand, activated carbon, scale inhibitor and other materials respectively. The reclaimed water is transported into the filters 1051 through the reclaimed water pipe 1053, and then flows in the plurality of filters 1051 through the connecting pipe 1052, so as to achieve preliminary filtration and purification. Then the reclaimed water flows into the high-pressure pump 102 through the conveying pipe 1054. The high-pressure pump 102 applies pressure to the reclaimed water, so that the reclaimed water successively passes through the high-pressure pipe 104 and the water inlet pipe 202 and is transported into the membrane shell 201. The reclaimed water cannot directly penetrate to the top of the pure water pipe 204 through the sealing sheet 206, and the water can only penetrate into the pure water pipe 204 through the reverse osmosis membrane 205. The plurality of filter sheets 208 are vertically distributed, and the pore size of each filter sheet 208 decreases from top to bottom, so that the filter sheet 208 can preliminarily grade filter the impurities in the water.

[0034] The top filter sheet 208 can preliminarily intercept the reclaimed water, so that the reclaimed water cannot directly flow into the bottom of the membrane shell 201, so as to avoid the impurities directly accumulating in the bottom of the membrane shell 201. The reclaimed water successively passes through each filter sheet 208 in the flowing process. The plurality of chutes 207 are vertically and equidistantly distributed, so that the internal space of the membrane shell 201 can be uniformly divided by the plurality of filter sheets 208, so that the reclaimed water successively passes through each space downward, so that the large-particle impurities are intercepted by the top filter sheet 208, and the small-particle impurities are intercepted by the bottom filter sheet 208, thereby reducing the burden of each filter sheet 208. Since the gap of the large-particle impurities is large, the reclaimed water can flow between the large-particle impurities and normally pass through the reverse osmosis membrane 205. Although the impurities at the bottom of the reverse osmosis membrane 205 are small in size, the number of filtered particles is small, so that the small-particle impurities cannot cause a large amount of blockage of the membrane holes of the reverse osmosis membrane 205.

[0035] Therefore, the impurities of the reclaimed water cannot be concentrated and blocked at the top or bottom of the membrane shell 201, and the reclaimed water filtered by the plurality of levels uniformly contacts the reverse osmosis membrane 205. Under the action of the high-pressure pump 102, the impurities are intercepted by the reverse osmosis membrane 205, and the pure water permeated by the reverse osmosis membrane 205 enters the pure water pipe 204 through the circular hole of the pure water pipe 204. Then the pure water in the pure water pipe 204 is discharged through the water outlet pipe 203.

[0036] The side wall of the membrane shell 201 is fixedly connected with the sewage pipe 209, and the outer walls of the sewage pipe 209 and the water outlet pipe 203 are sleeved with valves.

[0037] In the long reverse osmosis process, the water that cannot be permeated by the reverse osmosis membrane 205 inside the membrane shell 201 will accumulate inside the membrane shell 201. By opening the sewage pipe 209, the water that cannot be permeated can be discharged in time to accumulate in the membrane shell 201 to cause the reverse osmosis membrane 205 to be blocked. The valve of the sewage pipe 209 can control the water discharge amount, so that the discharged water and the water that cannot be reverse osmosis and remains in the membrane shell 201 are discharged in a certain proportion, so as to ensure the water process while the water that cannot be permeated can be discharged in time to achieve efficient reverse osmosis effect. The valve of the water outlet pipe 203 is used to control the water outlet amount of pure water.

[0038] Further, the outer wall of the high-pressure pipe 104 is sleeved with a one-way valve 210, one side of the water inlet pipe 202 is fixedly connected with a blowdown pipe 211, and the outer wall of the blowdown pipe 211 is sleeved with a valve.

[0039] When the reverse osmosis membrane 205 is used for a long time, impurities will adhere to the outer surface of the reverse osmosis membrane 205. At this time, the valve of the water outlet pipe 203 is closed, and the water pump is connected to the sewage pipe 209 to send clean water into the sewage pipe 209 to backwash the membrane shell 201 and the reverse osmosis membrane 205. The sewage pipe 209 sends clean water from bottom to top into the inside of the membrane shell 201, so that the impurities on the outer wall of the membrane shell 201 and the reverse osmosis membrane 205 pass through the filter holes of each filter sheet 208 in turn. Then the sewage enters the water inlet pipe 202. The one-way valve 210 allows the water in the high-pressure pipe 104 to be sent to the water inlet pipe 202 in one direction only, so the sewage cannot flow into the high-pressure pipe 104. Then the valve of the blowdown pipe 211 is opened to discharge the sewage. In this way, the inside of the membrane shell 201 can be backwashed to improve the filtering effect of the reverse osmosis membrane 205. After washing, the valve of the blowdown pipe 211 is closed, and the valve of the water outlet pipe 203 is opened to continue reverse osmosis of the water.

[0040] Further, the top of the membrane shell 201 is sealed and a T-shaped rod 212 slides through. The T-shaped rod 212 vertically penetrates through the plurality of filter sheets 208 and is fixedly connected to each filter sheet 208. One side of the membrane shell 201 is provided with a transparent window 213, and one side of the connecting frame 103 is provided with a notch matching the transparent window 213.

[0041] The T-shaped rod 212 is sealed with the top of the membrane shell 201. During backwashing, the T-shaped rod 212 can be manually pulled to make the plurality of filter sheets 208 vertically reciprocate. In this way, the impurities adhering to the inner wall of the membrane shell 201 and the outer surface of the reverse osmosis membrane 205 can be scraped off, thereby improving the cleanliness of backwashing. The notch of the connecting frame 103 prevents the connecting frame 103 from covering the transparent window 213. Through the transparent window 213, workers can easily determine the impurity content inside the membrane shell 201 to facilitate timely cleaning.

[0042] In use, the reclaimed water is transported into the filter 1051 through the reclaimed water pipe 1053, and is preliminarily filtered and purified by the plurality of filters 1051, and then is flowed into the high-pressure pump 102 through the conveying pipe 1054, the high-pressure pump 102 applies pressure to the reclaimed water, and the reclaimed water passes through the high-pressure pipe 104 and the water inlet pipe 202 in turn and is transported into the membrane shell 201, the plurality of filter sheets 208 preliminarily grade filter the impurities in the reclaimed water, so that the large-particle impurities are intercepted by the filter sheets 208 at the top, and the small-particle impurities are intercepted by the filter sheets 208 at the bottom, thereby reducing the burden of each filter sheet 208, and the reclaimed water after multi-stage filtration is uniformly contacted with the reverse osmosis membrane 205, under the action of the high-pressure pump 102, the impurities are intercepted by the reverse osmosis membrane 205, and the pure water permeated by the reverse osmosis membrane 205 enters the pure water pipe 204 through the circular holes of the pure water pipe 204, and then the pure water in the pure water pipe 204 is discharged through the water outlet pipe 203;

[0043] When a large amount of impurities is accumulated inside the membrane shell 201 observed through the transparent window 213, the valve of the water outlet pipe 203 is closed and the valve of the blowdown pipe 211 is opened, then the water pump is connected to the sewage pipe 209, so as to transport clean water into the sewage pipe 209 to backwash the membrane shell 201 and the reverse osmosis membrane 205, in the process of backwashing, the T-shaped rod 212 is manually pulled to scrape off the impurities attached to the inner wall of the membrane shell 201 and the outer surface of the reverse osmosis membrane 205 through the plurality of filter sheets 208, then the sewage is discharged through the blowdown pipe 211, after washing, the valve of the blowdown pipe 211 is closed, and the valve of the water outlet pipe 203 is opened, so as to continue to reverse osmosis the reclaimed water.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A reverse osmosis equipment for recycling reclaimed water, characterized in that: include: A processing unit (100) comprises a base (101), a high-pressure pump (102) fixedly connected to the top of the base (101), and a connecting frame (103); an outer wall of the high-pressure pump (102) is fixedly connected to a high-pressure pipe (104); and the processing unit (100) further comprises a processing component (105) for pre-treating reclaimed water; The reverse osmosis unit (200) comprises a membrane shell (201) fixedly connected to the inner wall of a connecting frame (103), the top and bottom of the membrane shell (201) are respectively fixedly connected with a water inlet pipe (202) and a water outlet pipe (203), the high-pressure pipe (104) is connected to the water inlet pipe (202), the bottom of the inner cavity of the membrane shell (201) is fixedly connected with a pure water pipe (204), the pure water pipe (204) is connected to the water outlet pipe (203), and the outer wall of the pure water pipe (204) is provided with a plurality of circular holes. The bottom of the inner wall of the membrane shell (201) is fixedly connected to a reverse osmosis membrane (205) wound on a pure water pipe (204), and the tops of the pure water pipe (204) and the reverse osmosis membrane (205) are fixedly connected to a sealing sheet (206). The inner wall of the membrane shell (201) is provided with a plurality of vertically distributed chutes (207), and the inner wall of each of the chutes (207) is slidably provided with a plurality of filter discs (208), and the top of each of the filter discs (208) is provided with a circular opening that fits the reverse osmosis membrane (205).

2. A reverse osmosis equipment for recycling reclaimed water according to claim 1, characterized in that: The processing assembly (105) comprises a plurality of filters (1051) fixedly connected to the top of the base (101), two adjacent filters (1051) are connected via a connecting pipe (1052), the outer wall of one of the filters (1051) is fixedly connected to a medium water pipe (1053), and a delivery pipe (1054) is fixedly connected between one of the filters (1051) and the high-pressure pump (102).

3. The reverse osmosis equipment for recycling reclaimed water according to claim 1, characterized in that: The side wall of the membrane shell (201) is fixedly connected to a sewage pipe (209), and the outer walls of the sewage pipe (209) and the outlet pipe (203) are both sleeved with valves.

4. The reverse osmosis equipment for recycling reclaimed water according to claim 1, characterized in that: The outer wall of the high-pressure pipe (104) is provided with a one-way valve (210), one side of the water inlet pipe (202) is fixedly connected to a sewage pipe (211), and the outer wall of the sewage pipe (211) is provided with a valve.

5. The reverse osmosis equipment for recycling reclaimed water according to claim 3, characterized in that: A T-bar (212) is slidably passed through the top of the membrane shell (201), and the T-bar (212) vertically passes through a plurality of filter plates (208) and is fixedly connected to each filter plate (208).

6. A reverse osmosis equipment for recycling reclaimed water according to claim 5, characterized in that: A transparent window (213) is provided on one side of the membrane shell (201), and a notch that fits the transparent window (213) is opened on one side of the connecting frame (103).

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