Integrated efficient water treatment device

Abstract

The utility model relates to the field of water treatment devices, in particular to a high-strength immersed membrane filtration and two-stage reverse osmosis integrated efficient water treatment device. The utility model relates to an integrated high-efficiency water treatment device which comprises an equipment box body, one side of the equipment box body is provided with a high-strength immersed membrane assembly, a membrane pool, an HMF water producing pool and a primary reverse osmosis water producing pool, and the high-strength immersed membrane assembly, the membrane pool, the HMF water producing pool and the primary reverse osmosis water producing pool are sequentially arranged. A primary reverse osmosis device, a secondary reverse osmosis device, a water production tank and an electric control cabinet are arranged on the other side of the equipment box body, and a pump combination, a dosing device group and an air circulation device are arranged in the middle of the equipment box body.

Description

Technical Field

[0001] The utility model relates to the field of water treatment devices, in particular to a high-intensity immersed membrane filtration+double-stage reverse osmosis integrated high-efficiency water treatment device. Background Art

[0002] With the continuous development of the social economy and the acceleration of urbanization, pure water has found widespread application in various fields, including but not limited to medicine, pharmaceuticals, electronics manufacturing, laboratory animal husbandry, cosmetics production, and food and beverage processing. Traditional pure water equipment is expensive, requires a large floor space, has high investment costs, and has significant application limitations. This device, which integrates a high-intensity submerged membrane filtration system with a reverse osmosis device, features modularity, intelligent functionality, easy transportation, quick installation, and high energy efficiency. It is suitable for various small- and medium-scale pure water production applications, such as laboratory and pharmaceutical water preparation, seawater desalination, and tap water purification.

[0003] The existing technical solution consists of a hollow fiber membrane column filtration unit, a first-stage reverse osmosis unit, and a second-stage reverse osmosis unit. This solution presents the following issues: 1. The hollow fiber membrane column filtration unit plus a two-stage reverse osmosis unit can easily clog the membranes in the event of fluctuating water quality, necessitating the use of wastewater for cleaning. This cleaning process, which requires the use of acid and alkali reagents, can significantly impact the lifespan of the hollow fiber column membranes. 2. The existing technical solution's split design occupies a large footprint and places high demands on the specific application scenarios and conditions. 3. The hollow fiber membrane column filtration unit plus a two-stage reverse osmosis unit has relatively high requirements for the incoming water, requiring the use of pretreatment equipment such as multi-media filters, resulting in a significant investment. 4. The hollow fiber column membranes have average filament strength and a short service life. Summary of the Invention

[0004] The utility model hopes to provide a high-intensity submerged membrane filtration + two-stage reverse osmosis integrated high-efficiency water treatment device, the specific scheme is as follows:

[0005] An integrated high-efficiency water treatment device includes an equipment box. One side of the equipment box is provided with a high-strength submerged membrane assembly, a membrane tank, an HMF water production tank and a first-level reverse osmosis water production tank, and the high-strength submerged membrane assembly, the membrane tank, the HMF water production tank and the first-level reverse osmosis water production tank are arranged in sequence. The other side of the equipment box is provided with a first-level and a second-level reverse osmosis device, a water production tank and an electric control cabinet. A pump combination, a dosing device group and an air circulation device are provided in the middle of the equipment box.

[0006] The pump combination includes a first-stage reverse osmosis high-pressure pump, a second-stage reverse osmosis high-pressure pump, an external supply pump, a first-stage reverse osmosis water supply pump, an HMF water production / backwash pump and a fan.

[0007] The dosing device group includes a non-oxidizing bactericide dosing device, a reducing agent dosing device and an antiscalant dosing device, and the reducing agent dosing device and the antiscalant dosing device are located in front of the first-stage reverse osmosis high-pressure pump.

[0008] The utility model has the following advantages:

[0009] 1. High-strength submerged curtain membranes have lower water requirements than existing technologies, are more resistant to pollution, and are less affected by water quality fluctuations;

[0010] 2. The integrated equipment is skid-mounted, occupies a smaller area, is suitable for a wider range of scenarios and environments, and is easy to transport. The modular design allows for flexible assembly and use based on water volume. In particular, the above-mentioned layout specified in this application can reduce the floor space required.

[0011] 3. Centralized control and simple installation reduce the difficulty of operation and production costs.

[0012] 4. High-strength immersed membrane has high breaking strength and service life of more than 5 years. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a working principle diagram of an integrated high-efficiency water treatment device of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of an integrated high-efficiency water treatment device of this utility model Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the structure of an integrated high-efficiency water treatment device of this utility model Figure 2 ;

[0016] The labels include: 1. High-strength immersed membrane assembly; 2. Membrane tank; 3. HMF water production tank; 4. First-stage reverse osmosis water production tank; 5. Water production tank; 6. First-stage reverse osmosis water supply pump; 7. HMF water production / backwash pump; 8. Fan; 9. First-stage reverse osmosis high-pressure pump; 10. Second-stage reverse osmosis high-pressure pump; 11. External supply pump; 12. First-stage and second-stage reverse osmosis devices; 13. Dosing device group; 14 Electric control cabinet; 15. Air circulation device; 16. Equipment box. DETAILED DESCRIPTION

[0017] The following combination Figure 1-3 For further explanation:

[0018] An integrated high-efficiency water treatment device includes an equipment box 16. On one side of the equipment box 16, a high-strength submerged membrane assembly 1, a membrane tank 2, an HMF water production tank 3 and a first-level reverse osmosis water production tank 4 are provided, and the high-strength submerged membrane assembly 1, the membrane tank 2, the HMF water production tank 3 and the first-level reverse osmosis water production tank 4 are arranged in sequence. On the other side of the equipment box 16, first-level and second-level reverse osmosis devices 12, a water production tank 5 and an electric control cabinet 14 are provided. A pump combination, a dosing device group 13 and an air circulation device 15 are provided in the middle of the equipment box 16.

[0019] The pump assembly includes a first-stage reverse osmosis high-pressure pump 9, a second-stage reverse osmosis high-pressure pump 10, an external supply pump 11, a first-stage reverse osmosis water supply pump 6, an HMF water production / backwash pump 7 and a fan 8.

[0020] Primary reverse osmosis high-pressure pump 9: Pressurizes water from primary reverse osmosis water supply pump 6 through the primary reverse osmosis membrane, producing water to primary reverse osmosis water production tank 4. Secondary reverse osmosis high-pressure pump 10: Pressurizes water produced from primary reverse osmosis through the secondary reverse osmosis membrane, producing water to water production tank 5. External supply pump 11: Transports water from water production tank 5 to a designated location. Primary reverse osmosis water supply pump 6: Transports clean water from HMF water production tank 3 to primary reverse osmosis high-pressure pump 9. HMF water production / backwash pump 7: Uses vacuum suction to move water from membrane tank 2 through the membrane fibers, intercepting contaminants, and transports it to HMF water production tank 3. Fan 8: Aeration through fan 8 causes the membrane fibers to vibrate, dislodging contaminants from the membrane fibers, reducing their adhesion and reducing cleaning frequency. Dosing device group 13: Includes dosing devices for non-oxidizing biocide, reducing agent, and antiscalant. The non-oxidizing bactericide is added to the rear pipe of the HMF water production pump so that it is fully mixed before entering the HMF water production pool to reduce the production of algae; the reducing agent dosing device and the scale inhibitor dosing device are added before the first-stage reverse osmosis high-pressure pump 9. The reducing agent removes residual chlorine in the water and reduces damage to the membrane elements. The scale inhibitor prevents scaling on the surface of the reverse osmosis membrane elements.

[0021] Replace the existing process technology with a high-strength submerged membrane module 1 and add anti-pollution reverse osmosis; primary and secondary reverse osmosis devices 12 (ultra-low pressure energy saving);

[0022] Existing industrial tap water enters the high-strength submerged membrane module 1 to remove turbidity;

[0023] The high-strength submerged membrane assembly 1 enters the reverse osmosis system to remove inorganic salts, bacteria, microorganisms, viruses, colloids, and organic matter;

[0024] Fresh water from the primary reverse osmosis system enters the secondary reverse osmosis system to further remove impurities such as dissolved salts, organic matter, microorganisms, colloids, and particulates, thereby producing high-purity water. Fresh water from the secondary reverse osmosis system enters the water production tank 5 as the first product. Brine from the secondary reverse osmosis system flows back to the HMF water production tank 3. Brine from the primary reverse osmosis system is connected to the external discharge pipe network as the second product. The above system sections are connected by pipelines.

[0025] The first product is clean pure water, with a water quality resistivity of up to 0.5 MΩ·cm, accounting for about 70% of the water volume; the second product is concentrated water from the first-stage reverse osmosis system, accounting for about 30% of the water volume.

[0026] This device uses high-intensity membrane filtration technology to remove suspended matter and turbidity in incoming water. The high-intensity submerged membrane component 1 has high filtration accuracy and high strength of the lining fabric, has a dense layer, no structural flux loss, high water production flux, long-term stable operating flux, strong anti-pollution ability and backwash effect.

[0027] This device utilizes the characteristics of two-stage reverse osmosis (i.e., primary and secondary reverse osmosis units 12) to remove the vast majority of soluble salts, colloids, organic matter, color, and microorganisms from water. Ultra-low-pressure, energy-saving reverse osmosis membrane elements offer low operating pressure and high water yield, effectively reducing system energy consumption. This process produces water with a resistivity of ≥0.5 MΩ·cm and a recovery rate of approximately 70%.

[0028] The high-strength submerged membrane assembly 1 uses a membrane to filter the incoming water. Due to the high filtration accuracy of the membrane, low turbidity of the effluent is guaranteed, and high-quality water is produced. It has a certain load resistance capacity under unstable influent water quality and the load resistance lasts for a long time. It adopts a modular design, and subsequent replacement is simple and convenient. It has high tensile strength and is not easy to break under normal operation. The membrane is made of PVDF, which has strong anti-pollution ability, is not easily adhered to by pollutants, and is easy to clean.

[0029] Reverse Osmosis (RO) systems are currently the most widely used, stable, and economical industrial desalination systems both domestically and internationally. RO units are assembled from RO membrane elements, pressure vessels, instruments, and pumps. RO desalination utilizes the properties of RO elements to remove various contaminants from water, including ions, molecules, organic matter, heat sources, and bacteria, through mass transfer across the membrane under pressure. RO systems are currently widely used by water users across various industries.

[0030] The above content describes the technical principles, beneficial effects and characteristics of the utility model. It should be pointed out that the above is only a preferred implementation method of the utility model, but is not limited to the above embodiments. For technicians in the technical field to which the utility model belongs, they can make some improvements and optimizations without departing from the content of the utility model, which should be regarded as belonging to the scope of protection of the utility model.

Claims

1. An integrated high-efficiency water treatment device, characterized by: It includes an equipment box, one side of which is provided with a high-strength submerged membrane assembly, a membrane tank, an HMF water production tank and a first-level reverse osmosis water production tank, and the high-strength submerged membrane assembly, the membrane tank, the HMF water production tank and the first-level reverse osmosis water production tank are arranged in sequence; the other side of the equipment box is provided with a first-level and a second-level reverse osmosis device, a water production tank and an electric control cabinet; the middle of the equipment box is provided with a pump combination, a dosing device group and an air circulation device.

2. The integrated high-efficiency water treatment device according to claim 1, characterized in that: The pump combination includes a first-stage reverse osmosis high-pressure pump, a second-stage reverse osmosis high-pressure pump, an external supply pump, a first-stage reverse osmosis water supply pump, an HMF water production / backwash pump and a fan.

3. The integrated high-efficiency water treatment device according to claim 1, characterized in that: The dosing device group includes a non-oxidizing bactericide dosing device, a reducing agent dosing device and an antiscalant dosing device, and the reducing agent dosing device and the antiscalant dosing device are located in front of the first-stage reverse osmosis high-pressure pump.

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