Small split reverse osmosis seawater desalination device

Abstract

The utility model discloses a small split reverse osmosis seawater desalination device which comprises a pretreatment module and a reverse osmosis membrane main machine module which are sequentially connected through a pipeline, and further comprises a post-treatment module, after entering a folding filter in the reverse osmosis membrane main machine module through a water outlet and a low-pressure pipeline, the seawater enters a seawater inlet of the high-pressure pump energy recovery all-in-one machine, and after seawater output from a seawater outlet of the high-pressure pump energy recovery all-in-one machine is treated by a reverse osmosis membrane assembly, fresh water is discharged to a subsequent pipeline. The post-treatment module comprises a water delivery pump, a second precision filter and an ultraviolet lamp sterilization unit which are sequentially connected through water pipes, and the ultraviolet lamp sterilization unit is provided with a fresh water outlet; the device is novel in structure and ingenious in design, and all parts are divided into a pretreatment module, a reverse osmosis membrane main machine module and a post-treatment module, so that the volume of each module is reduced, and the device is convenient to transport and maintain.

Description

Technical Field

[0001] The utility model belongs to the field of small seawater desalination devices, in particular to a small split reverse osmosis seawater desalination device. Background Art

[0002] In recent years, with economic development and population growth, freshwater shortages have become an unavoidable problem for countries around the world. Demand for freshwater continues to grow. Compared to the shortage of land-based water resources, ocean water resources are abundant. Consequently, countries are turning their attention to seawater desalination as a key water resource development goal. Seawater desalination has gradually gained acceptance as the most reliable freshwater source for coastal and offshore areas. Desalination is an open-source, incremental technology for achieving water resource utilization, increasing the total amount of freshwater available and unaffected by time, space, and climate. In recent years, research and construction of large and medium-sized seawater desalination technologies in my country have made significant progress and are becoming increasingly mature. However, current research and development of small-scale desalination systems still faces several limitations, such as high energy consumption, complex operation, large footprint, inconvenient transportation, and long lead times and high costs for custom products. Therefore, developing a low-energy, easy-to-operate, compact, and transportable, standardized desalination system is of great practical significance. Summary of the Invention

[0003] The purpose of the utility model is to provide a small split reverse osmosis seawater desalination device to solve the problems raised in the above background technology, such as high energy consumption, complicated operation, large floor space and inconvenient transportation, and long delivery period for non-standard customization.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A small split reverse osmosis seawater desalination device comprises a pretreatment module and a reverse osmosis membrane host module connected in sequence through pipelines, wherein:

[0006] The pretreatment module includes a pretreatment rack 14, a seawater pump 16 is provided on the left rear side of the base of the pretreatment rack 14, the seawater pump 16 is connected to a multi-media filter 17 provided on the left front side of the base of the pretreatment rack 14 through a water pipe, and the multi-media filter 17 is connected to a first precision filter 15 on the lower right side of the pretreatment rack 14 through a water pipe;

[0007] The reverse osmosis membrane host module includes a host frame 1, including a control cabinet 2 provided on the upper left of the host frame 1, a product water flow meter 5, a high-pressure meter 6, and a low-pressure meter 7 provided on the control cabinet 2, a high-pressure pump energy recovery integrated machine 11, a reverse osmosis membrane assembly 4, and a folded filter 8 provided in the host frame 1, wherein,

[0008] The high-pressure pump energy recovery integrated machine 11 is connected to the motor 13 through a coupling, and the seawater outlet of the high-pressure pump energy recovery integrated machine 11 is connected to the water inlet of the reverse osmosis membrane assembly 4 through a high-pressure pipeline. A high-pressure switch 3 is installed on the high-pressure pipeline. The fresh water treated by the reverse osmosis membrane assembly 4 is discharged to the subsequent pipeline through the fresh water outlet, and the remaining concentrated seawater is connected to the concentrated water inlet of the high-pressure pump energy recovery integrated machine 11 through a high-pressure pipeline. After energy recovery, the low-pressure concentrated water produced is connected to the host wastewater outlet through the concentrated water outlet of the high-pressure pump energy recovery integrated machine 11 for discharge;

[0009] The processing process is as follows: the seawater pumped in by the seawater pump 16 is processed by the multi-media filter 17 and the first precision filter 15, and then enters the folded filter 8 in the reverse osmosis membrane host module through the water outlet 18 through the low-pressure pipeline connection, and then enters the seawater inlet of the high-pressure pump energy recovery integrated machine 11. The seawater output from the seawater outlet of the high-pressure pump energy recovery integrated machine 11 is processed by the reverse osmosis membrane assembly 4, and the fresh water is discharged to the subsequent pipeline.

[0010] The preferred technical solution provided by the present utility model is that it also includes a post-processing module, which includes a post-processing frame 19, a second precision filter 21 is provided in the post-processing frame 19, a water pump 22 is provided at the bottom of the post-processing frame 19, and an ultraviolet lamp sterilization unit 20 is provided on the rear right side of the post-processing frame 19. The ultraviolet lamp sterilization unit 20 is connected to the water outlet of the second precision filter 21 through a water pipe, and the water inlet of the second precision filter 21 is connected to the water outlet of the water pump 22 through a pipeline. A fresh water outlet is provided on the upper right side of the ultraviolet lamp sterilization unit 20;

[0011] The fresh water from the reverse osmosis membrane assembly 4 is pumped into the second precision filter 21 by the water pump, and is discharged after passing through the ultraviolet lamp sterilization unit 20 to become edible fresh water.

[0012] Preferably, a flushing pump 9 for backwashing the pipeline is further provided in the main frame 1. The water outlet of the flushing pump 9 is connected to the seawater inlet of the pleated filter 8 and the high-pressure pump energy recovery integrated machine 11 in sequence through a low-pressure pipeline.

[0013] Preferably, the low-pressure switch 10 is used to control the pressure of seawater in the water inlet pipe of the high-pressure pump energy recovery integrated machine 11; the high-pressure switch 3 is used to control the pressure of seawater in the water outlet pipe of the high-pressure pump energy recovery integrated machine 11.

[0014] Preferably, the low-pressure gauge 7 is used to detect the pressure of seawater in the water inlet pipe of the high-pressure pump energy recovery integrated machine 11; the high-pressure gauge 6 is used to detect the pressure of seawater in the water outlet pipe of the high-pressure pump energy recovery integrated machine 11.

[0015] Preferably, a protective cover 12 is provided on the coupling connecting the high-pressure pump energy recovery integrated machine 11 and the motor 13.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model has a novel structure and ingenious design. All components are divided into three modules: pretreatment, reverse osmosis membrane host and post-treatment. This reduces the volume of each module and facilitates transportation and maintenance.

[0018] 2. The utility model integrates the motor, high-pressure pump energy recovery all-in-one machine, flushing pump and folding filter into the host module. The corresponding pretreatment module can be configured according to the raw water quality, realizing the standardization of the host, shortening the delivery cycle of the entire device and reducing costs.

[0019] 3. The utility model utilizes a plunger pump energy recovery integrated machine, which simplifies the number of water pumps, reduces energy consumption, and lowers costs.

[0020] 4. Since the flow ratio between the high-pressure pump and the energy recovery device is fixed, the seawater desalination device can automatically adjust the system pressure according to changes in seawater temperature and salinity, thereby achieving fully automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The physical reference diagrams in the following drawings are only used to understand the technical solution of the utility model and are not used as a limitation;

[0022] Figure 1 This is a forward perspective schematic diagram of the host module of the present utility model;

[0023] Figure 2 This is a rear structural diagram of the host module of the utility model;

[0024] Figure 3 It is a front view schematic diagram of the pre-processing module of the present utility model.

[0025] Figure 4 It is a rear view schematic diagram of the pre-processing module of the present utility model.

[0026] Figure 5 It is a rear view schematic diagram of the post-processing module of the present utility model.

[0027] In the figure, the main frame 1, the control cabinet 2, the high-pressure switch 3, the reverse osmosis membrane assembly 4, the product water flow meter 5, the high-pressure meter 6, the low-pressure meter 7, the folding filter 8, the flushing pump 9, the low-pressure switch 10, the high-pressure pump energy recovery integrated machine 11, the protective cover 12, the motor 13, the pre-treatment frame 14, the first precision filter 15, the seawater pump 16, the multi-media filter 17, the water outlet 18, the post-processing frame 19, the ultraviolet lamp sterilization unit 20, the second precision filter 21, and the water supply pump 22. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, a small split reverse osmosis seawater desalination device of the present invention comprises a pretreatment module and a reverse osmosis membrane host module connected in sequence through pipelines, wherein:

[0030] The pretreatment module includes a pretreatment rack 14, a seawater pump 16 is provided on the left rear side of the base of the pretreatment rack 14, the seawater pump 16 is connected to a multi-media filter 17 provided on the left front side of the base of the pretreatment rack 14 through a water pipe, and the multi-media filter 17 is connected to a first precision filter 15 on the lower right side of the pretreatment rack 14 through a water pipe;

[0031] The reverse osmosis membrane host module includes a host frame 1, including a control cabinet 2 provided on the upper left of the host frame 1, a product water flow meter 5, a high-pressure meter 6, and a low-pressure meter 7 provided on the control cabinet 2, a high-pressure pump energy recovery integrated machine 11, a reverse osmosis membrane assembly 4, and a folded filter 8 provided in the host frame 1, wherein,

[0032] The high-pressure pump energy recovery integrated machine 11 is connected to the motor 13 through a coupling, and the seawater outlet of the high-pressure pump energy recovery integrated machine 11 is connected to the water inlet of the reverse osmosis membrane assembly 4 through a high-pressure pipeline. A high-pressure switch 3 is installed on the high-pressure pipeline. The fresh water treated by the reverse osmosis membrane assembly 4 is discharged to the subsequent pipeline through the fresh water outlet, and the remaining concentrated seawater is connected to the concentrated water inlet of the high-pressure pump energy recovery integrated machine 11 through a high-pressure pipeline. After energy recovery, the low-pressure concentrated water produced is connected to the host wastewater outlet through the concentrated water outlet of the high-pressure pump energy recovery integrated machine 11 for discharge;

[0033] The main frame 1 is also provided with a flushing pump 9 for backwashing the pipeline. The water outlet of the flushing pump is connected to the seawater inlet of the pleated filter and the high-pressure pump energy recovery integrated machine in sequence through a low-pressure pipeline.

[0034] The processing process is as follows: the seawater pumped in by the seawater pump 16 is processed by the multi-media filter 17 and the first precision filter 15, and then enters the folded filter 8 in the reverse osmosis membrane host module through the water outlet 18 through the low-pressure pipeline connection, and then enters the seawater inlet of the high-pressure pump energy recovery integrated machine 11. The seawater output from the seawater outlet of the high-pressure pump energy recovery integrated machine 11 is processed by the reverse osmosis membrane assembly 4, and the fresh water is discharged to the subsequent pipeline.

[0035] like Figure 5 As shown, the small split reverse osmosis seawater desalination device of the present invention also includes a post-processing module, which includes a post-processing frame 19, a second precision filter 21 is provided in the post-processing frame 19, a water pump 22 is provided at the bottom of the post-processing frame 19, and an ultraviolet lamp sterilization unit 20 is provided on the rear right side of the post-processing frame 19. The ultraviolet lamp sterilization unit 20 is connected to the water outlet of the second precision filter 21 through a water pipe, and the water inlet of the second precision filter 21 is connected to the water outlet of the water pump 22 through a pipeline. A fresh water outlet is provided at the upper right corner of the ultraviolet lamp sterilization unit 20;

[0036] The fresh water from the reverse osmosis membrane assembly 4 is pumped into the second precision filter 21 by the water pump, and is discharged after passing through the ultraviolet lamp sterilization unit 20 to become edible fresh water.

[0037] In this utility model, the low-pressure switch 10 controls the pressure of seawater in the inlet pipe of the high-pressure pump-energy recovery unit 11; the high-pressure switch 3 controls the pressure of seawater in the outlet pipe of the high-pressure pump-energy recovery unit 11. The low-pressure gauge 7 detects the pressure of seawater in the inlet pipe of the high-pressure pump-energy recovery unit 11; and the high-pressure gauge 6 detects the pressure of seawater in the outlet pipe of the high-pressure pump-energy recovery unit 11.

[0038] A protective cover 12 is provided on the coupling connecting the high-pressure pump energy recovery integrated machine 11 and the motor 13.

[0039] The flow meter 5 is used to detect the flow rate of the fresh water outlet pipe of the reverse osmosis membrane assembly 4.

[0040] The seawater pump 16, flushing pump 9, motor 13, water pump 22, and ultraviolet lamp sterilization unit 20 are all controlled by the control cabinet 2.

[0041] The seawater pump 16 is fixedly connected to the base of the pretreatment frame 14 by bolts.

[0042] The flushing pump 9, the motor 13 and the main frame 1 are fixedly connected by bolts.

[0043] The motor 13, the protective cover 12 and the high-pressure pump energy recovery integrated machine 11 are fixedly connected by bolts.

[0044] The water pump 22 is fixedly connected to the post-processing frame 19 by bolts.

[0045] The ultraviolet lamp sterilization unit 20 is fixed by a clamp through bolts.

[0046] There are three reverse osmosis membrane components 4, two precision filters, and two pleated filters.

[0047] Although the present invention has been described above with reference to the drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many modifications without departing from the purpose of the present invention, and these are all within the protection of the present invention.

Claims

1. A small split reverse osmosis seawater desalination device, characterized in that: It includes a pretreatment module and a reverse osmosis membrane host module connected in sequence through pipelines, wherein: The pretreatment module comprises a pretreatment rack (14), a seawater pump (16) is provided on the left rear side of the base of the pretreatment rack (14), the seawater pump (16) is connected to a multi-media filter (17) provided on the left front side of the base of the pretreatment rack (14) through a water pipe, and the multi-media filter (17) is connected to a first precision filter (15) at the lower right side of the pretreatment rack (14) through a water pipe; The reverse osmosis membrane host module comprises a host frame (1), a control cabinet (2) is arranged on the upper left of the host frame (1), a product water flow meter (5), a high pressure meter (6), and a low pressure meter (7) are arranged on the control cabinet (2), and a high pressure pump energy recovery integrated machine (11) and a reverse osmosis membrane assembly (4) and a pleated filter (8) are arranged in the host frame (1), wherein: The high-pressure pump energy recovery integrated machine (11) is connected to the motor (13) through a coupling, the seawater outlet of the high-pressure pump energy recovery integrated machine (11) is connected to the water inlet of the reverse osmosis membrane assembly (4) through a high-pressure pipeline, a high-pressure switch (3) is installed on the high-pressure pipeline, the fresh water treated by the reverse osmosis membrane assembly (4) is discharged to the subsequent pipeline through the fresh water outlet, the remaining concentrated seawater is connected to the concentrated water inlet of the high-pressure pump energy recovery integrated machine (11) through the concentrated seawater outlet through a high-pressure pipeline, after energy recovery, the low-pressure concentrated water produced is connected to the host wastewater outlet through the concentrated water outlet of the high-pressure pump energy recovery integrated machine (11) for discharge; The processing process is as follows: the seawater pumped in by the seawater pump (16) is processed by the multi-media filter (17) and the first precision filter (15), and then enters the folded filter (8) in the reverse osmosis membrane host module through the water outlet (18) through the low-pressure pipeline connection, and then enters the seawater inlet of the high-pressure pump energy recovery integrated machine (11). The seawater output from the seawater outlet of the high-pressure pump energy recovery integrated machine (11) is processed by the reverse osmosis membrane assembly (4), and then discharged as fresh water to the subsequent pipeline.

2. A small split reverse osmosis seawater desalination device according to claim 1, characterized in that: The invention also includes a post-processing module, wherein the post-processing module includes a post-processing frame (19), a second precision filter (21) is provided in the post-processing frame (19), a water supply pump (22) is provided at the bottom of the post-processing frame (19), an ultraviolet lamp sterilization unit (20) is provided on the rear right side of the post-processing frame (19), the ultraviolet lamp sterilization unit (20) is connected to the water outlet of the second precision filter (21) through a water pipe, the water inlet of the second precision filter (21) is connected to the water outlet of the water supply pump (22) through a pipeline, and a fresh water outlet is provided on the upper right side of the ultraviolet lamp sterilization unit (20); Fresh water from the reverse osmosis membrane assembly (4) is pumped into the second precision filter (21) through a water pump, and is discharged after passing through the ultraviolet lamp sterilization unit (20) to become edible fresh water.

3. A small split reverse osmosis seawater desalination device according to claim 1, characterized in that: The main frame (1) is also provided with a flushing pump (9) for backwashing the pipeline; the water outlet of the flushing pump (9) is connected to the seawater inlet of the folding filter (8) and the high-pressure pump energy recovery integrated machine (11) in sequence through a low-pressure pipeline.

4. A small split reverse osmosis seawater desalination device according to claim 1, characterized in that: It also includes a low-pressure switch (10), which is used to control the pressure of seawater in the water inlet pipe of the high-pressure pump energy recovery integrated machine (11); the high-pressure switch (3) is used to control the pressure of seawater in the water outlet pipe of the high-pressure pump energy recovery integrated machine (11).

5. The small split reverse osmosis seawater desalination device according to claim 1, characterized in that: The low-pressure gauge (7) is used to detect the pressure of seawater in the water inlet pipe of the high-pressure pump energy recovery integrated machine (11); the high-pressure gauge (6) is used to detect the pressure of seawater in the water outlet pipe of the high-pressure pump energy recovery integrated machine (11).

6. A small split reverse osmosis seawater desalination device according to claim 1, characterized in that: A protective cover (12) is provided on the coupling connecting the high-pressure pump energy recovery integrated machine (11) and the motor (13).

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