Efficient reverse osmosis device

Abstract

The utility model discloses an efficient reverse osmosis device which comprises a raw water tank and a filtering water tank, the filtering water tank is connected with EDI (Electronic Data Interchange) equipment through a pipeline, a two-stage reverse osmosis device is arranged between the raw water tank and the filtering water tank, and the two-stage reverse osmosis device is arranged in a movable container body. The two-stage reverse osmosis device comprises a first-stage reverse osmosis membrane group and a second-stage reverse osmosis membrane group, the first-stage reverse osmosis membrane group and the second-stage reverse osmosis membrane group are connected in series, and a raw water inlet and a filtered water outlet are formed in the front end and the rear end of the movable container body; the raw water inlet and the filtered water outlet are detachably connected with the raw water tank and the filtered water tank through connecting pipelines, the primary reverse osmosis membrane group comprises a front filtering section and an electromagnetic preprocessor connected with the front filtering section in series, and the water outlet end of the electromagnetic preprocessor is connected with a security filter through a pipeline; and the water outlet end of the security filter is connected with the primary reverse osmosis membrane element through a pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and in particular relates to a high-efficiency reverse osmosis device. Background Art

[0002] Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. Pressure is applied to the liquid on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will reversely penetrate in the opposite direction of natural osmosis, thereby obtaining the permeated solvent, i.e., the permeate, on the low-pressure side of the membrane; and a concentrated solution, i.e., the concentrate, on the high-pressure side.

[0003] The pretreatment system combined with the single-stage reverse osmosis device used in the existing technology cannot meet the production water requirements. This is mainly reflected in the poor pre-treatment effect, frequent replacement of the reverse osmosis membrane group, low desalination rate, resulting in a shortened service life and increased production cost.

[0004] In view of the above factors, the present invention provides a high-efficiency reverse osmosis device, which adopts a two-stage reverse osmosis series operation mode, has a higher desalination rate and a longer service life, and meets the needs of industrial production. Utility Model Content

[0005] The purpose of the present invention is to provide a high-efficiency reverse osmosis device to solve the problems raised in the above background technology.

[0006] The purpose of the utility model is achieved through the following technical solutions: a high-efficiency reverse osmosis device, comprising a raw water tank and a filtered water tank, wherein the filtered water tank is connected to an EDI device through a pipeline, and a double-stage reverse osmosis device is provided between the raw water tank and the filtered water tank, wherein the double-stage reverse osmosis device is placed in a movable container;

[0007] The two-stage reverse osmosis device comprises a first-stage reverse osmosis membrane group and a second-stage reverse osmosis membrane group, wherein the first-stage reverse osmosis membrane group and the second-stage reverse osmosis membrane group are arranged in series;

[0008] A raw water inlet and a filtered water outlet are provided at the front and rear ends of the movable container body. The raw water inlet and the filtered water outlet are detachably connected to the raw water tank and the filtered water tank via connecting pipes.

[0009] Furthermore, the first-stage reverse osmosis membrane group includes a pre-filtration section and an electromagnetic pre-processor arranged in series with the pre-filtration section. The water outlet end of the electromagnetic pre-processor is connected to the security filter through a pipe, and the water outlet end of the security filter is connected to the first-stage reverse osmosis membrane element through a pipe.

[0010] Furthermore, the first-level reverse osmosis membrane group is connected to the first-level water production flow meter through a connecting pipe, and the first-level water production flow meter is connected to the second-level reverse osmosis membrane group through a connecting pipe;

[0011] The secondary reverse osmosis membrane group comprises a regulating device and a secondary reverse osmosis membrane element connected to the regulating device in series via a connecting pipe.

[0012] Furthermore, the regulating device is a caustic soda storage tank, which is connected to the connecting pipe between the primary water production flow meter and the secondary reverse osmosis membrane group through a connecting pipe;

[0013] The connecting pipe on the caustic soda storage tank is connected to a high-pressure delivery pump.

[0014] Furthermore, a first-level high-pressure pump is provided between the security filter and the first-level reverse osmosis membrane element.

[0015] Furthermore, the secondary reverse osmosis membrane group further includes a secondary high-pressure pump, which is located on the connecting pipe between the primary water production flow meter and the secondary reverse osmosis membrane group.

[0016] Furthermore, the pre-filtration section includes a sand filter tank, an activated carbon filter, and a water softener. The sand filter tank, the activated carbon filter, and the water softener are arranged in series, and two groups are arranged in parallel.

[0017] Furthermore, the electromagnetic pre-processor comprises a cylinder and a water passageway provided in the cylinder, and the upper and lower ends of the water passageway are connected to the upper and lower cover end surfaces of the cylinder through flanges;

[0018] A coil is provided between the water passage and the cylinder;

[0019] A filter material is arranged in the water passage, and the filter material includes nickel-chromium alloy steel wool and rare earth porcelain sand arranged between the nickel-chromium alloy steel wool;

[0020] The nickel-chromium alloy steel wool is arranged at the upper and lower ends of the water passage.

[0021] Furthermore, movable wheels are provided at the bottom of the movable container body, windows are symmetrically provided on the end faces of the movable container body, and a double door hinged to the movable container body is provided at the middle position of the movable container body.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The utility model adopts a two-stage reverse osmosis series operation mode, which has a higher desalination rate and a longer service life and meets the needs of industrial production.

[0024] The utility model adopts a combination of a filtration section and an electromagnetic pre-processor to form a pre-treatment. An electromagnetic pre-processor is installed at the rear end of the filtration section. In order to facilitate secondary sterilization and filtration of the imported filtered water through the electromagnetic pre-processor when in use, the utilization efficiency of the first-level reverse osmosis membrane group and the second-level reverse osmosis membrane group is improved.

[0025] The utility model is provided with a secondary low-pressure switch on the front-end pipeline where the secondary high-pressure pump is located, and a primary high-pressure switch is provided on the front-end pipeline at the rear end of the primary high-pressure pump. If the water supply of the device is insufficient in use, the secondary low-pressure switch is used to shut down the device, and the water is pressurized by the secondary high-pressure pump and then supplied to the secondary reverse osmosis membrane group, thereby protecting the device.

[0026] The first-stage reverse osmosis membrane group and the second-stage reverse osmosis membrane group of the utility model are combined with the existing EDI equipment to form a high-efficiency reverse osmosis device with a longer service life, which meets the needs of industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the utility model's two-stage reverse osmosis device;

[0029] Figure 3 This is a schematic diagram of the first-stage reverse osmosis membrane group and the second-stage reverse osmosis membrane group connected in series in the utility model;

[0030] Figure 4 This is a schematic diagram of the first-stage reverse osmosis membrane group of the utility model;

[0031] Figure 5 This is a schematic diagram of the two-stage reverse osmosis membrane group of the utility model;

[0032] Figure 6 This is a schematic diagram of the filter section of the utility model;

[0033] Figure 7 This is a schematic diagram of the pre-processor of the utility model. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] like Figure 1-7 As shown, a high-efficiency reverse osmosis device includes a raw water tank 1 and a filtered water tank 2. The filtered water tank 2 is connected to the EDI device through a pipeline. A two-stage reverse osmosis device 3 is provided between the raw water tank 1 and the filtered water tank 2. The two-stage reverse osmosis device 3 is placed in a movable container body 4.

[0038] The two-stage reverse osmosis device 3 includes a first-stage reverse osmosis membrane group 3-1 and a second-stage reverse osmosis membrane group 3-2, and the first-stage reverse osmosis membrane group 3-1 and the second-stage reverse osmosis membrane group 3-2 are arranged in series;

[0039] A raw water inlet and a filtered water outlet are provided at the front and rear ends of the movable container body 4 , and the raw water inlet and the filtered water outlet are detachably connected to the raw water tank 1 and the filtered water tank 2 via connecting pipes.

[0040] The concentrated water from the first-stage reverse osmosis membrane group 3 - 1 and the second-stage reverse osmosis membrane group 3 - 2 can be led to an external water storage tank or a raw water tank through connecting pipes.

[0041] In order to effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water during use, the first-level reverse osmosis membrane group 3-1 includes a pre-filter section 3-11 and an electromagnetic pre-processor 3-12 arranged in series with the pre-filter section 3-11. The water outlet end of the electromagnetic pre-processor 3-12 is connected to the security filter 3-13 through a pipe, and the water outlet end of the security filter 3-13 is connected to the first-level reverse osmosis membrane element 3-14 through a pipe.

[0042] The first-level reverse osmosis membrane group 3-1 is connected to the first-level water production flow meter through a connecting pipe, and the first-level water production flow meter is connected to the second-level reverse osmosis membrane group 3-2 through a connecting pipe;

[0043] The secondary reverse osmosis membrane group 3-2 includes a regulating device 3-21 and a secondary reverse osmosis membrane element 3-22 connected in series with the regulating device 3-21 via a connecting pipe.

[0044] In order to facilitate the improvement of the pH value of the water produced by the first-level reverse osmosis membrane element 3-14 in use, thereby improving the working efficiency of the second-level reverse osmosis membrane group 3-2, the regulating device 3-21 is a caustic soda storage tank, which is connected to the connecting pipe between the first-level water production flow meter and the second-level reverse osmosis membrane group 3-2 through a connecting pipe;

[0045] The connecting pipe on the caustic soda storage tank is connected to a high-pressure delivery pump.

[0046] In order to facilitate the normal circulation of water in the pipeline by setting a first-level high-pressure pump 3-15 and a second-level high-pressure pump 3-23 during use, a first-level high-pressure pump 3-15 is set between the security filter 3-13 and the first-level reverse osmosis membrane element 3-14.

[0047] The secondary reverse osmosis membrane group 3-2 further includes a secondary high-pressure pump 3-23, which is located on the connecting pipe between the primary water production flow meter and the secondary reverse osmosis membrane group 3-2.

[0048] A secondary low-pressure switch is provided on the front-end pipeline where the secondary high-pressure pump 3-23 is located, and a primary high-pressure switch is provided on the rear-end front-end pipeline of the primary high-pressure pump. If the water supply of the device is insufficient during use, it is closed through the secondary low-pressure switch, and the water is pressurized by the secondary high-pressure pump 3-23 and then supplied to the secondary reverse osmosis membrane group 3-2. A water storage tank (not shown in the figure) can also be installed at the rear end of the primary reverse osmosis membrane group, and the subsequent secondary reverse osmosis membrane group is connected by leading out through a connecting pipe on the water storage tank.

[0049] In order to facilitate the primary filtration and interception of the inlet water in use, the pre-filtration section 3-11 includes a sand filter tank 3-11a, an activated carbon filter 3-11b, and a water softener 3-11c. The sand filter tank 3-11a, the activated carbon filter 3-11b, and the water softener 3-11c are arranged in series, and two groups are arranged in parallel.

[0050] In order to facilitate secondary sterilization and filtration of the imported filtered water by the electromagnetic pre-processor in use, the electromagnetic pre-processor 3-12 includes a cylinder 3-12a and a water passage 3-12b arranged in the cylinder 3-12a, and the upper and lower ends of the water passage 3-12b are connected to the upper and lower cover end surfaces of the cylinder 3-12a through flanges;

[0051] The upper and lower ends of the water passage 3-12b are provided with detachable electromagnetic soft iron (bolted to the flanges at the upper and lower ends and sealed by O-rings or sealants), and the electromagnetic soft iron extends into the water passage 3-12b.

[0052] Several electromagnetic valves are connected to the connecting pipes of the electromagnetic preprocessor 3-12, and are installed and adjusted according to the use of water inlet / outlet / backwash (not shown in the figure). A backwash pipe is installed on the connecting pipes of the inlet and outlet of the electromagnetic preprocessor 3-12, and a backwash pump is installed.

[0053] Solenoid valves are installed on the water inlet and outlet pipes, and a solenoid valve is installed on the backwash pipe. Under normal operating conditions, the solenoid valve installed on the backwash pipe is closed. During backwashing, the solenoid valves installed on the water inlet and outlet pipes are closed, and the solenoid valve installed on the backwash pipe is opened.

[0054] A coil 3-12c is sleeved between the water passage 3-12b and the cylinder 3-12a, and the coil 3-12c is connected to an external high-voltage generator (not shown in the figure) through a connecting wire;

[0055] The water passage 3-12b is provided with a filter material, the filter material comprising nickel-chromium alloy steel wool 3-12d and rare earth porcelain sand 3-12e arranged between the nickel-chromium alloy steel wool 3-12d, the rare earth porcelain sand 3-12e is filled in the steel wire filter housed in the water passage 3-12b;

[0056] The nickel-chromium alloy steel wool is arranged at the upper and lower ends of the water passage 3-12b.

[0057] In order to facilitate adjustment according to site installation requirements during use, a movable container body is adopted. The bottom of the movable container body 4 is provided with movable wheels, and windows are symmetrically provided on the end faces of the movable container body 4. A double door hinged to the movable container body 4 is provided in the middle position of the movable container body 4.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-efficiency reverse osmosis device, comprising a raw water tank (1) and a filtered water tank (2), wherein the filtered water tank (2) is connected to an EDI device via a pipeline, and is characterized in that: A double-stage reverse osmosis device (3) is provided between the raw water tank (1) and the filtered water tank (2), and the double-stage reverse osmosis device (3) is placed in a movable container body (4); The two-stage reverse osmosis device (3) comprises a first-stage reverse osmosis membrane group (3-1) and a second-stage reverse osmosis membrane group (3-2), wherein the first-stage reverse osmosis membrane group (3-1) and the second-stage reverse osmosis membrane group (3-2) are arranged in series; A raw water inlet and a filtered water outlet are provided at the front and rear ends of the movable container body (4), and the raw water inlet and the filtered water outlet are detachably connected to the raw water tank (1) and the filtered water tank (2) via connecting pipes.

2. The high-efficiency reverse osmosis device according to claim 1, characterized in that: The first-stage reverse osmosis membrane group (3-1) includes a pre-filter section (3-11) and an electromagnetic pre-processor (3-12) arranged in series with the pre-filter section (3-11); the water outlet end of the electromagnetic pre-processor (3-12) is connected to a security filter (3-13) via a pipeline; and the water outlet end of the security filter (3-13) is connected to a first-stage reverse osmosis membrane element (3-14) via a pipeline.

3. The high-efficiency reverse osmosis device according to claim 2, characterized in that: The first-level reverse osmosis membrane group (3-1) is connected to the first-level water production flow meter through a connecting pipe, and the first-level water production flow meter is connected to the second-level reverse osmosis membrane group (3-2) through a connecting pipe; The secondary reverse osmosis membrane group (3-2) comprises a regulating device (3-21) and a secondary reverse osmosis membrane element (3-22) connected in series with the regulating device (3-21) via a connecting pipe.

4. The high-efficiency reverse osmosis device according to claim 3, characterized in that: The regulating device (3-21) is a caustic soda storage tank, which is connected to the connecting pipe between the primary water production flow meter and the secondary reverse osmosis membrane group (3-2) through a connecting pipe; The connecting pipe on the caustic soda storage tank is connected to a high-pressure delivery pump.

5. The high-efficiency reverse osmosis device according to claim 4, characterized in that: A first-level high-pressure pump (3-15) is provided between the security filter (3-13) and the first-level reverse osmosis membrane element (3-14).

6. The high-efficiency reverse osmosis device according to claim 5, characterized in that: The secondary reverse osmosis membrane group (3-2) further includes a secondary high-pressure pump (3-23), the secondary high-pressure pump (3-23) Located on the connecting pipe between the first-level water production flowmeter and the second-level reverse osmosis membrane group (3-2).

7. The high-efficiency reverse osmosis device according to claim 6, characterized in that: The pre-filtration section (3-11) includes a sand filter tank (3-11a), an activated carbon filter (3-11b), and a water softener (3-11c). The sand filter tank (3-11a), the activated carbon filter (3-11b), and the water softener (3-11c) are arranged in series, and two groups are arranged in parallel.

8. The high-efficiency reverse osmosis device according to claim 7, characterized in that: The electromagnetic pre-processor (3-12) comprises a cylinder (3-12a) and a water passage (3-12b) arranged in the cylinder (3-12a), wherein the upper and lower ends of the water passage (3-12b) are connected to the upper and lower cover end surfaces of the cylinder (3-12a) through flanges; A coil (3-12c) is sleeved between the water passage (3-12b) and the cylinder (3-12a); A filter material is arranged in the water passage (3-12b), and the filter material includes nickel-chromium alloy steel wool (3-12d) and rare earth porcelain sand (3-12e) arranged between the nickel-chromium alloy steel wool (3-12d); The nickel-chromium alloy steel wool is arranged at the upper and lower ends of the water passage (3-12b).

9. The high-efficiency reverse osmosis device according to claim 8, characterized in that: The bottom of the movable container body (4) is provided with movable wheels, the end surface of the movable container body (4) is symmetrically provided with windows, and a double-opening door hinged to the movable container body (4) is provided in the middle position of the movable container body (4).

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