Ultrafiltration ultraviolet integrated energy-saving water production equipment

Abstract

The utility model relates to ultrafiltration ultraviolet integrated energy-saving water production equipment, relates to the technical field of water treatment, and aims to solve the problems of microbial pollution and equipment oxidation in water treatment. An ultrafiltration membrane device, a medium-pressure ultraviolet device, an ultrafiltration water tank, a reverse osmosis membrane device and an EDI module are sequentially arranged between the raw water tank and the pure water tank, and the raw water tank, the ultrafiltration membrane device, the medium-pressure ultraviolet device, the ultrafiltration water tank, the reverse osmosis membrane device, the EDI module and the pure water tank are sequentially communicated; a chlorine adding system for controlling the content of microorganisms in water is arranged on the raw water tank, and a concentrated water recycling device for recycling concentrated water is further arranged on one side of the reverse osmosis membrane device. According to the present invention, the high purity of the effluent water is ensured, the microorganisms in the raw water are effectively inactivated, the risk that the RO system is polluted by the microorganisms is avoided, the use amount of the raw water is saved, and the integrated treatment effect from the raw water pretreatment to the purified water preparation is achieved.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to an ultrafiltration ultraviolet integrated energy-saving water production equipment. Background Art

[0002] With the acceleration of industrialization and the continuous improvement of people's requirements for water quality, pure water treatment technology has become an indispensable key link in many fields. Pure water treatment aims to remove impurities, suspended matter, bacteria, viruses and harmful chemicals in water sources through a series of physical, chemical or biological processes to meet specific process or domestic water standards. In the current pure water treatment process, pretreatment, reverse osmosis (RO) and electrodeionization (EDI) are the core links of the mainstream process chain.

[0003] In related technologies, a combination of multi-media filters and activated carbon filters is traditionally used to preliminarily purify water quality. Multi-media filters effectively intercept and remove large particles in the water, such as mud, rust and some colloids, through various media layers inside them, such as sand and gravel. However, their ability to remove tiny particles and microorganisms such as bacteria is limited, and they cannot inhibit the growth of microorganisms. Activated carbon filters use their strong adsorption capacity to mainly remove residual chlorine in the water to prevent subsequent RO membranes from suffering oxidative damage.

[0004] However, in this process, although the multi-media filter can effectively remove large particles, it cannot effectively filter bacteria and inhibit the growth of microorganisms, resulting in the risk of microbial contamination in subsequent treatment links. At the same time, when the activated carbon filter removes residual chlorine, its adsorption effect promotes the rapid reproduction of microorganisms, and this growth is difficult to effectively control through conventional disinfection methods. In addition, the adsorption saturation limit and untimely replacement of activated carbon further increase the risk of oxidation of RO membranes and EDI equipment, affecting the stability of the entire water treatment system and water quality safety, so it needs to be improved. Utility Model Content

[0005] In order to solve the problems of microbial contamination and equipment oxidation in water treatment, the present application provides an ultrafiltration ultraviolet integrated energy-saving water production equipment.

[0006] The ultrafiltration ultraviolet integrated energy-saving water production equipment provided in this application adopts the following technical solutions:

[0007] An ultrafiltration ultraviolet integrated energy-saving water treatment device, including a raw water tank and a pure water tank. Between the raw water tank and the pure water tank, there are successively arranged an ultrafiltration membrane device, a medium-pressure ultraviolet sterilizer, an ultrafiltration water tank, a reverse osmosis membrane device and an EDI module. The raw water tank, the ultrafiltration membrane device, the medium-pressure ultraviolet sterilizer, the ultrafiltration water tank, the reverse osmosis membrane device, the EDI module and the pure water tank are successively connected and communicated. A chlorine addition system for controlling the microbial content in water is arranged on the raw water tank, and a concentrated water recovery device for recovering concentrated water is also arranged on one side of the reverse osmosis membrane device.

[0008] Since the multi-media filter can effectively remove large particles, but cannot effectively filter bacteria and inhibit the growth of microorganisms, resulting in the risk of microbial contamination in subsequent treatment processes. At the same time, when the activated carbon filter removes residual chlorine, its adsorption effect promotes the rapid reproduction of microorganisms, and this growth is difficult to effectively control by conventional disinfection means. Moreover, the adsorption saturation limit of activated carbon and the untimely replacement further exacerbate the risk of oxidation of the RO membrane and EDI equipment, affecting the stability of the entire water treatment system and water quality safety. By adopting the above technical solution, including a raw water tank and a pure water tank, the ultrafiltration membrane device, the medium-pressure ultraviolet sterilizer, the ultrafiltration water tank, the reverse osmosis membrane device and the EDI module are successively connected and communicated between the raw water tank and the pure water tank;

[0009] When water treatment is carried out, the raw water is first introduced into the raw water tank for preliminary storage. The raw water is treated by a chlorine addition system (using sodium hypochlorite as a disinfectant) to control the microbial content in the water and maintain a low microbial level, and then sent to the ultrafiltration membrane device. The ultrafiltration membrane device can remove particles larger than 20 microns in the water (including colloids, sediment, etc.) by using its unique pore structure. The treated raw water enters the medium-pressure ultraviolet sterilization device (wavelength 260 - 320nm) to remove residual chlorine in the water and kill microorganisms in the water. The water after medium-pressure ultraviolet sterilization enters the ultrafiltration water tank for temporary storage. The water in the ultrafiltration water tank is sent to the reverse osmosis membrane device to remove most of the ions in the water and produce relatively pure water (referred to as RO product water). The concentrated water generated in the reverse osmosis membrane device enters the concentrated water recovery device. This device improves the recovery rate of concentrated water to about 60% through a series of treatment steps, and returns the recovered pure water to the ultrafiltration water tank, discharges the recovered concentrated water. At the same time, the RO product water enters the EDI module, and through the combination of electrodialysis and ion exchange technologies, further removes residual ions to produce high-purity water and enters the purification water tank. The concentrated water generated during the treatment process of the EDI module is returned to the ultrafiltration water tank;

[0010] This device adopts an advanced ultrafiltration membrane device (replacing the traditional multi-media filter), achieving efficient removal of particulate matter in water, covering fine particles with a diameter greater than 20 microns and bacteria, ensuring highly pure effluent water quality. It combines a chlorination system (using sodium hypochlorite) to effectively inactivate microorganisms in the raw water, reducing the microbial content in the effluent to an extremely low level. Further, a medium-pressure ultraviolet sterilizer is introduced into the device (replacing the original activated carbon filter), which not only efficiently removes residual chlorine but also completely inactivates microorganisms in the raw water, thus avoiding the risk of microbial contamination of the RO system and extending the service life of the device. This innovation not only eliminates the steps of regular disinfection and cleaning, reduces the discharge of cleaning wastewater, but also successfully eliminates the pasteurization system in the pretreatment, significantly saving the consumption of industrial steam. Notably, the device is equipped with a concentrated water recovery device, which can increase the recovery rate of the concentrated water generated by the RO system to more than 60% and use the recovered water as the backwash water for the ultrafiltration membrane, greatly saving the consumption of raw water and reflecting the efficient utilization of water resources. In summary, the entire device integrates a variety of advanced water treatment technologies, forming a complete water treatment process and achieving integrated treatment from raw water pretreatment to pure water preparation.

[0011] Optionally, a raw water pump for conveying is provided between the raw water tank and the ultrafiltration membrane device, a high-pressure pump for conveying is provided between the ultrafiltration water tank and the reverse osmosis membrane device, and a concentrated water pump for conveying the produced concentrated water is provided between the reverse osmosis membrane device and the concentrated water recovery device.

[0012] By adopting the above technical solution, the raw water pump is installed on the pipeline between the raw water tank and the ultrafiltration membrane device, the high-pressure pump is installed on the pipeline between the ultrafiltration water tank and the reverse osmosis membrane device, and the concentrated water pump is installed on the pipeline between the reverse osmosis membrane device and the concentrated water recovery device; through the setting of the raw water pump, high-pressure pump and concentrated water pump, these pumps undertake the important task of fluid transportation. By generating sufficient pressure difference, water can overcome the pipeline resistance and flow along the predetermined direction, improving the transportation efficiency.

[0013] Optionally, a light intensity detector for detecting the power or performance of light waves is provided on the medium-pressure ultraviolet sterilizer.

[0014] By adopting the above technical solution, the light intensity detector is installed on the medium-pressure ultraviolet sterilizer; through the setting of the light intensity detector, the radiation intensity and light wave performance of the ultraviolet lamp tube can be measured in real time and accurately. It ensures that the ultraviolet sterilizer always maintains the best sterilization state during operation, reducing the poor disinfection effect caused by over-irradiation or insufficient irradiation.

[0015] Optionally, the wavelength range of the inner component lamp tube of the medium-pressure ultraviolet sterilizer is 260 - 320 nm.

[0016] By adopting the above technical solution, the wavelength range of the inner component lamp tube of the medium-pressure ultraviolet sterilizer is 260 - 320 nm; by selecting the wavelength, ultraviolet rays within the range of 260 - 320 nm have a strong killing effect on a variety of microorganisms, including bacteria, viruses, protozoa, etc. This wavelength range can damage the DNA or RNA structure of microorganisms, making them lose the ability to replicate and reproduce, thereby achieving the purpose of disinfection. At the same time, the ultraviolet rays of its specific wavelength can effectively decompose these chemical by-products, reduce their accumulation in the subsequent RO (reverse osmosis) system, and reduce the burden on RO.

[0017] Optionally, a residual chlorine detector for detecting the residual chlorine content in the water body is provided between the medium-pressure ultraviolet sterilizer and the ultrafiltration water tank.

[0018] By adopting the above technical solution, the residual chlorine detector is installed on the pipeline between the medium-pressure ultraviolet sterilizer and the ultrafiltration water tank; through the setting of the residual chlorine detector, the residual chlorine content in the water body can be monitored in real time to ensure that the residual chlorine content in the water body before treatment by the medium-pressure ultraviolet sterilizer is within a suitable range, which is crucial for ensuring the subsequent disinfection effect and the overall water quality safety.

[0019] Optionally, the pure water outlet of the concentrated water recovery device is connected to the water replenishing port of the ultrafiltration water tank.

[0020] By adopting the above technical solution, the pure water outlet of the concentrated water recovery device is connected to the water replenishing port of the ultrafiltration water tank; through the connection method between the concentrated water recovery device and the ultrafiltration water tank, the recycled water is used for backwashing, which not only meets the needs of the ultrafiltration system but also reduces the waste of fresh raw water.

[0021] Optionally, the pure water outlet of the EDI module is connected to the pure water tank, and the concentrated water outlet of the EDI module is connected to the water replenishing port of the ultrafiltration water tank.

[0022] By adopting the above technical solution, the pure water outlet of the EDI module is connected to the pure water tank, and the concentrated water outlet of the EDI module is connected to the water replenishing port of the ultrafiltration water tank; through the connection method between the EDI module and the pure water tank and the ultrafiltration water tank, during the treatment process of the EDI module, a certain amount of concentrated water will be generated. Although this concentrated water contains a high ion concentration, it still has certain utilization value. By connecting the concentrated water outlet to the water replenishing port of the ultrafiltration water tank, recycling and reuse can be achieved, and this concentrated water can be used for backwashing or other processes that require lower water quality, thereby reducing the demand for fresh raw water and improving the utilization efficiency of water resources.

[0023] Optionally, a first conductivity meter is provided between the reverse osmosis membrane device and the EDI module, and a second conductivity meter and a TOC detector are provided between the EDI module and the pure water tank.

[0024] By adopting the above technical solution, the first conductivity meter is installed on the pipeline between the reverse osmosis membrane device and the EDI module, and the second conductivity meter and the TOC detector are installed on the pipeline between the EDI module and the pure water tank; through the settings of the first conductivity meter, the second conductivity meter and the TOC detector, the first conductivity meter is mainly used to monitor the water quality after being treated by the reverse osmosis membrane, the second conductivity meter is used to monitor the water quality after being treated by the EDI module, and the TOC detector is used to monitor the total organic carbon content in the effluent of the EDI module, which can monitor the water quality change in real time, ensure the normal operation of the water treatment system and the stable and reliable effluent water quality.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] This device adopts an advanced ultrafiltration membrane device (replacing the traditional multi-media filter), achieving efficient removal of particulate matter in water, covering micro-particles with a diameter greater than 20 microns and bacteria, ensuring highly pure effluent water quality. Combined with a chlorination system (using sodium hypochlorite), it effectively inactivates microorganisms in the raw water, reducing the microbial content in the effluent to an extremely low level. Further, a medium-pressure ultraviolet sterilizer is introduced into the device (replacing the original activated carbon filter), which not only efficiently removes residual chlorine but also completely inactivates microorganisms in the raw water, thus avoiding the risk of microbial contamination of the RO system. This innovation not only eliminates the steps of regular disinfection and cleaning, reduces the discharge of cleaning wastewater, but also successfully eliminates the pasteurization system in the pretreatment, significantly saving the consumption of industrial steam. Notably, the device is equipped with a concentrated water recovery device, which can increase the recovery rate of the concentrated water generated by the RO system to more than 60% and use the recovered water as the backwash water for the ultrafiltration membrane, greatly saving the consumption of raw water and reflecting the efficient utilization of water resources. In summary, the entire device integrates a variety of advanced water treatment technologies, forming a complete water treatment process, and realizing the integrated treatment from raw water pretreatment to pure water preparation;

[0027] By selecting the wavelength, ultraviolet light in the wavelength range of 260 - 320 nm has a strong killing effect on a variety of microorganisms, including bacteria, viruses, protozoa, etc. This wavelength range can damage the DNA or RNA structure of microorganisms, making them lose the ability to replicate and reproduce, thus achieving the purpose of disinfection. At the same time, ultraviolet light with a specific wavelength can effectively decompose these chemical by-products, reduce their accumulation in the subsequent RO (reverse osmosis) system, and reduce the burden on RO. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of an ultrafiltration ultraviolet integrated energy-saving water production device in an embodiment of the present application.

[0029] Description of reference numerals: 1, raw water tank; 2, chlorination system; 3, ultrafiltration membrane device; 4, medium-pressure ultraviolet sterilizer; 5, ultrafiltration water tank; 6, reverse osmosis membrane device; 7, EDI module; 8, pure water tank; 9, concentrated water recovery device; 10, raw water pump; 11, high-pressure pump; 12, concentrated water pump; 13, residual chlorine detector; 14, first conductivity meter; 15, second conductivity meter; 16, TOC detector. Detailed implementation manners

[0030] The following further elaborates on this application Figure 1 in conjunction with the attached drawings.

[0031] An ultrafiltration ultraviolet integrated energy-saving water treatment device is disclosed in an embodiment of this application. Referring to Figure 1 , the ultrafiltration ultraviolet integrated energy-saving water treatment device includes a raw water tank 1 and a pure water tank 8. An ultrafiltration membrane device 3, a medium-pressure ultraviolet sterilizer 4, an ultrafiltration water tank 5, a reverse osmosis membrane device 6, and an EDI module 7 are successively installed between the raw water tank 1 and the pure water tank 8. In this embodiment, the raw water tank 1, the ultrafiltration membrane device 3, the medium-pressure ultraviolet sterilizer 4, the ultrafiltration water tank 5, the reverse osmosis membrane device 6, the EDI module 7, and the pure water tank 8 are successively connected through pipelines.

[0032] Referring to Figure 1 , the raw water tank 1 is used for preliminarily storing raw water. A chlorination system 2 is installed on the raw water tank 1. In this embodiment, the chlorination system 2 can use sodium hypochlorite as a disinfectant. By adding sodium hypochlorite to the raw water, the pretreatment system is maintained at a low microbial level, effectively inactivating the microorganisms in the raw water and reducing the microbial content in the effluent to an extremely low level.

[0033] Referring to Figure 1 , a raw water pump 10 is installed between the raw water tank 1 and the ultrafiltration membrane device 3. The raw water pump 10 is installed on the pipeline connecting the raw water tank 1 and the ultrafiltration membrane device 3. The raw water pump 10 is used to pump the raw water into the ultrafiltration membrane device 3. The ultrafiltration membrane device 3 can remove particles larger than 20 microns in the water (including colloids, sediment, etc.) by virtue of its unique pore structure, and also has the characteristic of being resistant to residual chlorine, thereby controlling the microbial level of the pretreatment.

[0034] Referring to Figure 1 , the medium-pressure ultraviolet sterilizer 4 is connected to the ultrafiltration membrane device 3 through a pipeline. The wavelength range of the component lamp tube in the medium-pressure ultraviolet sterilizer 4 is 260 - 320 nm. The component lamp tube with a wavelength between 260 - 320 nm can effectively decompose HCIO and CLO-, thereby achieving the purpose of sterilization and disinfection. At the same time, the ultraviolet rays with a specific wavelength can effectively decompose these chemical by-products, reduce their accumulation in the subsequent RO (reverse osmosis) system, and reduce the burden on RO.

[0035] Referring to Figure 1, meanwhile, the medium-pressure ultraviolet sterilizer 4 is equipped with a light intensity detector, which can measure the radiation intensity and light wave performance of the ultraviolet lamp in real time and accurately. This ensures that the ultraviolet sterilizer always maintains the best disinfection state during operation, reducing the poor disinfection effect caused by over-irradiation or insufficient irradiation.

[0036] Refer to Figure 1 , in this embodiment, the medium-pressure ultraviolet sterilizer 4 uses 316L stainless steel as the cylinder body to improve corrosion resistance, and the internal mirror polishing increases the light reflection intensity and anti-scaling property.

[0037] Refer to Figure 1 , the medium-pressure ultraviolet sterilizer 4 is connected to the ultrafiltration water tank 5 through a pipeline. A residual chlorine detector 13 is equipped on the pipeline between the medium-pressure ultraviolet sterilizer 4 and the ultrafiltration water tank 5, which can monitor the residual chlorine content in the water body in real time to ensure that the residual chlorine content in the water body before treatment by the medium-pressure ultraviolet sterilizer 4 is within a suitable range. This is crucial for ensuring the subsequent disinfection effect and the overall water quality safety.

[0038] Refer to Figure 1 , a high-pressure pump 11 is installed between the ultrafiltration water tank 5 and the reverse osmosis membrane device 6. The high-pressure pump 11 is installed on the connecting pipeline between the ultrafiltration water tank 5 and the reverse osmosis membrane device 6. The high-pressure pump 11 is used to pump the treated raw water into the ultrafiltration water tank 5 and the reverse osmosis membrane device 6. The working principle of the reverse osmosis membrane device 6 is mainly based on the selective permeability of the semi-permeable membrane and by applying pressure to overcome the natural osmotic pressure to remove most of the ions in the water and produce relatively pure water (called RO product water).

[0039] Refer to Figure 1 , a concentrated water recovery device 9 is installed on one side of the reverse osmosis membrane device 6. The reverse osmosis membrane device 6 is connected to the concentrated water recovery device 9 through a pipeline. The concentrated water generated by the reverse osmosis membrane device 6 is transported into the concentrated water recovery device 9. At the same time, a concentrated water pump 12 is installed on the connecting pipeline between the reverse osmosis membrane device 6 and the concentrated water recovery device 9. These pumps undertake the important task of fluid transportation. By generating a sufficient pressure difference, the water can overcome the pipeline resistance and flow along the predetermined direction, improving the transportation efficiency.

[0040] Refer to Figure 1 , the pure water outlet of the concentrated water recovery device 9 is connected to the water replenishing port of the ultrafiltration water tank 5 through a pipeline. In this embodiment, the concentrated water recovery device 9 improves the recovery utilization rate of the concentrated water to about 60% through a series of treatment steps, and returns the recovered pure water to the ultrafiltration water tank 5, discharges the recovered concentrated water. The recovered pure water can be used as the backwash water for ultrafiltration, saving raw water.

[0041] Refer to Figure 1, meanwhile, the reverse osmosis membrane device 6 is connected to the EDI module 7 through a pipeline. The pure water generated by the reverse osmosis membrane device 6 is transported into the EDI module 7. A first conductivity meter 14 is installed on the connecting pipeline between the reverse osmosis membrane device 6 and the EDI module 7. The first conductivity meter 14 is mainly used to monitor the water quality after reverse osmosis membrane treatment. In this embodiment, the working principle of the EDI module 7 is based on the combination of ion exchange and electrodialysis technologies. Through the action of a high-voltage electric field, salts and impurities in the water are effectively removed, thereby preparing ultra-pure water.

[0042] Refer to Figure 1 , the concentrated water outlet of the EDI module 7 is connected to the water replenishing port of the ultrafiltration water tank 5 through a pipeline. During the treatment process of the EDI module 7, a certain amount of concentrated water will be generated. Although this concentrated water contains a high ion concentration, it still has certain utilization value. By connecting the concentrated water outlet to the water replenishing port of the ultrafiltration water tank 5, recycling and reuse can be achieved. These concentrated waters can be used for backwashing or other processes that require lower water quality, thereby reducing the demand for fresh raw water and improving the utilization efficiency of water resources.

[0043] Refer to Figure 1 , the pure water outlet of the EDI module 7 is connected to the pure water tank 8 through a pipeline. A second conductivity meter 15 and a TOC detector 16 are sequentially equipped on the connecting pipeline between the EDI module 7 and the pure water tank 8. The second conductivity meter 15 is used to monitor the water quality after treatment by the EDI module 7, and the TOC detector 16 is used to monitor the total organic carbon content in the water discharged from the EDI module 7, which can monitor the water quality changes in real time to ensure the normal operation of the water treatment system and the stable and reliable quality of the discharged water.

[0044] The implementation principle of the ultrafiltration ultraviolet integrated energy-saving water treatment equipment in the embodiments of the present application is as follows: When water treatment is carried out, the raw water is first introduced into the raw water tank 1 for preliminary storage. The raw water is treated by the chlorination system 2 (using sodium hypochlorite as a disinfectant) to control the microbial content in the water and maintain a low microbial level. After the raw water is pressurized by the raw water pump 10, it is sent into the ultrafiltration membrane device 3. The ultrafiltration membrane device 3 can remove particulate matter larger than 20 microns in the water (including colloids, sediment, etc.) by virtue of its unique pore structure. The treated raw water enters the medium-pressure ultraviolet sterilization device (wavelength 260 - 320 nm) to remove residual chlorine in the water and kill microorganisms in the water. The water after medium-pressure ultraviolet sterilization is monitored for the residual chlorine content in the water body by the residual chlorine detector 13 and then enters the ultrafiltration water tank 5 for temporary storage. The high-pressure pump 11 pressurizes the water in the ultrafiltration water tank 5 and sends it into the reverse osmosis membrane device 6 to remove most of the ions in the water and produce relatively pure water (referred to as RO product water). The concentrated water generated in the reverse osmosis membrane device 6 is pressurized by the concentrated water pump 12 and enters the concentrated water recovery device 9. Through a series of treatment steps, the recovery rate of the concentrated water is increased to about 60%, and the recovered pure water is returned to the ultrafiltration water tank 5, and the recovered concentrated water is discharged. At the same time, the RO product water enters the EDI module 7. Through the combination of electrodialysis and ion exchange technologies, residual ions are further removed. The high-purity water produced enters the purified water tank after passing the conductivity and TOC tests. The concentrated water generated during the treatment process of the EDI module 7 is returned to the ultrafiltration water tank 5;

[0045] The equipment adopts an advanced ultrafiltration membrane device 3 (replacing the traditional multi-media filter), realizing the efficient removal of particulate matter in the water, covering fine particles and bacteria with a diameter greater than 20 microns, ensuring a high degree of purity of the effluent water quality. Combined with the chlorination system 2 (using sodium hypochlorite), it effectively inactivates microorganisms in the raw water, reducing the microbial content in the effluent water to an extremely low level. Further, a medium-pressure ultraviolet device 4 is introduced into the equipment (replacing the original activated carbon filter), which not only efficiently removes residual chlorine but also completely inactivates microorganisms in the raw water, thus avoiding the risk of microbial contamination of the RO system and extending the service life of the equipment. This innovation not only eliminates the steps of regular disinfection and cleaning, reduces the discharge of cleaning wastewater, but also successfully eliminates the pasteurization system in the pretreatment, significantly saving the consumption of industrial steam. Notably, the equipment is equipped with a concentrated water recovery device 9, which can increase the recovery rate of the concentrated water generated by the RO system to more than 60% and use the recovered water as the backwash water for the ultrafiltration membrane, greatly saving the usage amount of raw water and reflecting the efficient utilization of water resources. In summary, the entire equipment integrates a variety of advanced water treatment technologies, forms a complete water treatment process, and realizes the integrated treatment from raw water pretreatment to pure water preparation.

[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An ultrafiltration ultraviolet integrated energy-saving water-making device, characterized in that: It includes a raw water tank (1) and a pure water tank (8). An ultrafiltration membrane device (3), a medium-pressure ultraviolet sterilizer (4), an ultrafiltration water tank (5), a reverse osmosis membrane device (6) and an EDI module (7) are sequentially arranged between the raw water tank (1) and the pure water tank (8). The raw water tank (1), the ultrafiltration membrane device (3), the medium-pressure ultraviolet sterilizer (4), the ultrafiltration water tank (5), the reverse osmosis membrane device (6), the EDI module (7) and the pure water tank (8) are sequentially connected and communicated. A chlorine addition system (2) for controlling the microbial content in water is arranged on the raw water tank (1). A concentrated water recovery device (9) for recovering concentrated water is also arranged on one side of the reverse osmosis membrane device (6).

2. The ultrafiltration ultraviolet integrated energy-saving water-making equipment according to claim 1, characterized in that: A raw water pump (10) for conveying is arranged between the raw water tank (1) and the ultrafiltration membrane device (3). A high-pressure pump (11) for conveying is arranged between the ultrafiltration water tank (5) and the reverse osmosis membrane device (6). A concentrated water pump (12) for conveying the produced concentrated water is arranged between the reverse osmosis membrane device (6) and the concentrated water recovery device (9).

3. The ultrafiltration ultraviolet integrated energy-saving water production equipment according to claim 1, characterized in that: A light intensity detector for detecting the power or performance of light waves is arranged on the medium-pressure ultraviolet sterilizer (4).

4. The ultrafiltration ultraviolet integrated energy-saving water-making equipment according to claim 1, characterized in that: The wavelength range of the inner component lamp tube of the medium-pressure ultraviolet sterilizer (4) is 260 - 320 nm.

5. An ultrafiltration ultraviolet integrated energy-saving water-making device according to claim 1, characterized in that: A residual chlorine detector (13) for detecting the residual chlorine content in the water body is arranged between the medium-pressure ultraviolet sterilizer (4) and the ultrafiltration water tank (5).

6. The ultrafiltration ultraviolet integrated energy-saving water-making device according to claim 1, characterized in that: The pure water outlet of the concentrated water recovery device (9) is communicated with the water replenishing port of the ultrafiltration water tank (5).

7. An ultrafiltration ultraviolet integrated energy-saving water production device according to claim 6, characterized in that: The pure water outlet of the EDI module (7) is connected and communicated with the pure water tank (8). The concentrated water outlet of the EDI module (7) is communicated with the water replenishing port of the ultrafiltration water tank (5).

8. An ultrafiltration ultraviolet integrated energy-saving water-making device according to claim 1, characterized in that: A first conductivity meter (14) is arranged between the reverse osmosis membrane device (6) and the EDI module (7). A second conductivity meter (15) and a TOC detector (16) are arranged between the EDI module (7) and the pure water tank (8).

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