Skid-mounted integrated ultrapure water device

Abstract

The invention relates to a skid-mounted integrated ultrapure water device, and relates to the field of ultrapure water devices. The device comprises a purification box set, the purification box set comprises a main box shell and two sets of protection box covers, the two sets of protection box covers are installed at the front end and the rear end of the main box shell correspondingly, the upper ends of the protection box covers are rotationally connected with the main box shell, and an air curtain assembly synchronously opened with the protection box covers is fixedly installed on the main box shell; the upper end face of the main box shell is further provided with a control piece for controlling the two sets of protection box covers to be opened. The equipment is high in integration degree, all treatment units are integrated in the skid-mounted main box shell, the overall structure is compact, the size is small, overall hoisting and transferring are convenient, the equipment can be flexibly arranged in different scenes such as a laboratory, a small part cleaning production line and a field operation point, the installation and debugging period is short, and compared with split type ultrapure water equipment, the equipment is convenient to install and debug. And the workload of field installation is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of ultrapure water devices, and in particular to skid-mounted integrated ultrapure water devices. Background Technology

[0002] Ultrapure water is widely used in the cleaning of precision electronic components, biopharmaceutical preparation, and laboratory analysis and testing. To facilitate installation and transportation and reduce on-site construction workload, skid-mounted integrated ultrapure water systems are now commonly used in small and medium-sized applications. All water treatment components are integrated into a single skid-mounted enclosure. Once transported to the site, the inlet and outlet pipes and power supply are connected for immediate use, eliminating the need for on-site assembly of piping and components and significantly shortening the installation cycle.

[0003] However, most existing skid-mounted integrated ultrapure water systems have a single-sided integrated door or a separate front and rear cover structure. When maintenance or replacement of easily worn components such as pre-filter cartridges and reverse osmosis membranes is required, the tank opening must be completely open, allowing unfiltered air from the outside to directly connect with the water treatment pipeline inside the tank. Dust, bacteria, and impurities carried in the air can easily adhere to the already filtered pipelines and clean filter membrane surfaces, causing contamination of the ultrapure water preparation pathway. After maintenance, a significant amount of time is required to clean and disinfect the entire pipeline system before producing qualified ultrapure water again. Frequent maintenance can also lead to irreversible contamination of filter membranes at all levels, shortening their service life and increasing the operating costs of the system.

[0004] Traditional small-scale ultrapure water preparation devices mostly use mixed-bed desalination processes, which require periodic shutdowns for acid and alkali regeneration, generating large amounts of acid and alkali wastewater that do not meet environmental protection requirements. Moreover, they have low automation levels, require manual monitoring of water quality and operating parameters, and are cumbersome to operate. For small and medium-scale applications, the operating costs are high and the user experience is poor. Summary of the Invention

[0005] To address the issue of poor protection and environmental performance of existing skid-mounted ultrapure water systems, this application provides a skid-mounted integrated ultrapure water system.

[0006] The skid-mounted integrated ultrapure water system provided in this application adopts the following technical solution:

[0007] A skid-mounted integrated ultrapure water system includes a purification tank assembly. The purification tank assembly includes a main tank shell and protective covers. Two sets of protective covers are provided, and the two sets of protective covers are respectively installed at the front and rear ends of the main tank shell. The upper end of the protective covers is rotatably connected to the main tank shell. An air curtain assembly that opens synchronously with the protective covers is fixedly installed on the main tank shell. A control component for controlling the opening of the two sets of protective covers is also provided on the upper end face of the main tank shell. A pre-filtration assembly, a reverse osmosis treatment assembly, and an environmental desalination assembly are fixedly installed in the main tank shell. Online monitoring components are installed on the pre-filtration assembly, the reverse osmosis treatment assembly, and the environmental desalination assembly.

[0008] By adopting the above technical solution and integrating all water treatment components into the main housing, the device achieves a skid-mounted integrated design, facilitating overall transportation and on-site installation. It features independently rotatable protective covers at the front and rear, along with synchronously opening air curtain components and controls for individually opening the covers. This allows for maintenance operations by opening only one side of the cover, significantly reducing the probability of external impurities entering the housing and contaminating the water treatment pathways. Furthermore, once the covers are open, the air curtain forms a continuous air barrier, effectively preventing dust and bacteria carried by the outside air from entering the housing, ensuring the cleanliness of the ultrapure water preparation environment. Simultaneously, the multi-stage process of three-stage pretreatment, reverse osmosis treatment, and deep desalination, combined with online monitoring components, continuously ensures that the produced water quality consistently meets ultrapure water standards. The overall structure is compact and highly integrated, suitable for small-scale mobile ultrapure water preparation needs.

[0009] Optionally, the main housing includes a reinforcing panel, side frames, and a cover plate. The side frames are vertically fixed to both sides of the reinforcing panel, and a side door that can be flipped open is installed on the outer side of the side frame. The cover plate is installed on the upper end face of the side frame, and the cover plate is sealed and fixedly connected to the side frame. Positioning shafts for installing a protective cover are also provided on both sides of the cover plate, and an auxiliary guide rail is fixedly installed in the middle of the upper end face of the cover plate.

[0010] By adopting the above technical solution, the main shell is formed by splicing reinforced box panels, side frames and box cover plates. The structural strength meets the stress requirements of skid-mounted hoisting and transportation. Side doors that can be flipped open are set on both sides to facilitate daily maintenance of the pipes and interfaces on the side of the main shell. The positioning shaft provides a stable and reliable rotating installation base for the protective box cover. The auxiliary guide rail provides precise guidance for the sliding movement of the control components, ensuring that the sliding seat moves smoothly without jamming. The overall structure is easy to assemble and has good sealing performance, which can effectively prevent external dust and debris from entering the box from the top of the box and contaminating the components.

[0011] Optionally, the air curtain assembly includes two sets of air curtain shells. The air curtain shells are fixedly installed on both sides of the lower end face of the box cover plate, and the air curtain shells are set as strip structures. Several sets of high-speed jet heads are evenly fixed on the lower end face of the air curtain shells. A first air supply bend and a second air supply bend, which are respectively connected to the two sets of air curtain shells, are fixedly installed on the upper end face of the box cover plate. A centrifugal fan for supplying air to the two sets of air curtain shells is also fixedly installed on the upper end face of the box cover plate. An exhaust wide shell is installed at the air outlet of the centrifugal fan. The exhaust wide shell is connected to the first air supply bend and the second air supply bend through a three-way valve. The exhaust wide shell is sealed to the air inlet of the three-way valve. The first air supply bend and the second air supply bend are sealed to the first air outlet and the second air outlet of the three-way valve, respectively.

[0012] By adopting the above technical solution, the two sets of air curtain shells are arranged on both sides of the lower end of the cover plate, corresponding to the front and rear sets of protective box covers. When either protective box cover is opened, the high-speed jet head on the corresponding side can spray high-speed airflow downward to form an air curtain, which completely covers the open box opening. By switching the air supply path through a three-way valve, only one centrifugal fan can be used to supply air to the two sets of air curtains separately, which greatly reduces the number of components in the equipment, reduces the production cost and overall weight of the equipment, meets the lightweight design requirements of skid-mounted devices, and ensures the continuity and airtightness of the air curtain by evenly arranging the high-speed jet heads, preventing gaps from allowing external pollutants to pass through the air curtain and enter the box.

[0013] Optionally, the protective box cover includes an inner cover plate, a buffer strip, a connecting top tube, and an outer connecting plate. The buffer strip is evenly fixed on the outer side of the inner cover plate. The connecting top tube is fixedly installed at the head of the inner cover plate and is rotatably mounted on a positioning shaft. The outer connecting plate is fixedly installed in the middle of the outer side of the connecting top tube.

[0014] By adopting the above technical solution, the inner cover plate serves as the main structure of the protective box cover, and buffer strips are evenly arranged on the outer side. When a collision occurs during the closing or opening of the protective box cover, the buffer strips can absorb the impact energy and prevent the box cover from deforming and being damaged. The connecting top tube is rotated and sleeved on the positioning shaft, and works with the external connecting plate and control components to achieve transmission connection. The force is even and stable during the rotation process, and there will be no problem of uneven wear and shaking, which effectively extends the service life of the protective box cover.

[0015] Optionally, the control component includes a sliding seat, a linkage bracket, and a drive assembly for moving the sliding seat. The sliding seat is configured in two sets, and the two sets of sliding seats are respectively installed at both ends of the auxiliary guide rail. The sliding seat is slidably connected to the auxiliary guide rail. The linkage bracket includes a middle plate and a concave frame connected to an external connecting plate. One end of the middle plate is rotatably connected to the sliding seat, and the middle part of the concave frame is fixedly connected to the other end of the middle plate. Both ends of the concave frame are rotatably connected to the external connecting plate. The drive assembly includes a reduction gearbox, a top motor, and a drive screw. The reduction gearbox is fixedly installed on the upper surface of the cover plate. The top motor is connected to the drive screw through the reduction gearbox, and the sliding seat has a threaded groove that mates with the drive screw.

[0016] By adopting the above technical solution, the sliding seat is driven to move along the auxiliary guide rail by the drive screw. The two sets of sliding seats are controlled separately, which makes it easy for the two sets of protective boxes to be opened and closed. With the linkage bracket, the protective box cover is driven to rotate around the positioning shaft, which can realize the individual opening and closing or synchronous opening of the two sets of protective boxes. The transmission method of the gearbox and the drive screw has a large output torque, which can stably drive the box cover to open without the problem of overload slippage.

[0017] Optionally, the pre-filtration assembly includes a basket filter, an ultrafiltration depth treatment assembly, and a security filter. One end of the basket filter is equipped with an external water source pipe, and the other end of the basket filter is equipped with an ultrafiltration water supply pump for supplying water to the ultrafiltration depth treatment assembly. The liquid outlet of the ultrafiltration depth treatment assembly is connected to the liquid inlet of the security filter.

[0018] By adopting the above technical solution, through the three-stage pre-filtration design of basket filter, ultrafiltration deep treatment component, and security filter, impurities of different particle sizes in the raw water can be gradually intercepted. First, the basket filter intercepts large particles of impurities, then ultrafiltration removes colloids, large molecular organic matter, and bacteria, and finally the security filter intercepts the fine filter residue carried out by ultrafiltration. This step-by-step filtration can effectively protect the filter membrane of the subsequent reverse osmosis treatment component from being scratched and blocked by large particles of impurities, extend the service life of the reverse osmosis membrane, and ensure the stability of the subsequent water treatment process.

[0019] Optionally, the ultrafiltration deep treatment assembly includes a treatment box, a connecting cap, and a hollow fiber ultrafiltration membrane. The connecting cap is sealed and fixed to the head of the treatment box, and an inlet pipe connected to the ultrafiltration feed water pump is provided on the connecting cap. The hollow fiber ultrafiltration membrane is fixedly installed in the treatment box, and a drain pipe is fixedly installed on the lower end face of the treatment box.

[0020] By adopting the above technical solutions, the hollow fiber ultrafiltration membrane has a high packing density, a large filtration area, and a strong processing capacity per unit volume. The sealing structure of the connecting cap makes it easy to disassemble, clean, and replace the ultrafiltration membrane, resulting in low maintenance costs. The layout design of the inlet and outlet pipes ensures that the water flows evenly through all the hollow fiber ultrafiltration membranes, resulting in high filtration efficiency and preventing water flow short-circuiting, thus effectively guaranteeing the pre-filtration treatment effect.

[0021] Optionally, the reverse osmosis treatment component includes a primary RO water tank and a secondary RO water tank. The inlet of the primary RO water tank is equipped with a primary reverse osmosis membrane, and the inlet of the primary RO water tank is connected to a drain pipe. The secondary RO water tank is connected to the drain of the primary RO water tank, and a secondary reverse osmosis membrane is installed between the secondary RO water tank and the primary RO water tank. An RO feed water pump is fixedly installed in the secondary RO water tank, and the outlet of the RO feed water pump is connected to an environmental desalination component.

[0022] By adopting the above technical solution, the two-stage treatment structure of primary reverse osmosis plus secondary reverse osmosis can remove more than 98% of dissolved salts, most organic matter and bacteria from the raw water. Compared with single-stage reverse osmosis, the water quality of the permeate is better and can stably meet the water quality requirements of the influent to the subsequent deep desalination components. The RO feed pump can stably supply water and ensure stable influent pressure, so that the subsequent EDI deep desalination process can operate smoothly.

[0023] Optionally, the environmentally friendly desalination component includes an EDI membrane stack, an EDI DC power supply, a concentrate circulation pump, and an EDI permeate outlet valve. The EDI membrane stack is composed of alternating layers of anion and cation exchange membranes, a desalination chamber, a concentrate chamber, and electrodes. The desalination chamber is connected to the outlet of the RO feed pump. The concentrate circulation pump is located outside the EDI membrane stack, and its inlet is connected to the outlet of the EDI membrane stack's concentrate chamber. The outlet of the concentrate circulation pump is connected to the inlet of the EDI membrane stack's concentrate chamber. The inlet of the EDI permeate outlet valve is connected to the desalination outlet of the EDI membrane stack, and the outlet of the EDI permeate outlet valve is connected to an ultrapure water tank.

[0024] By adopting the above technical solution and using the EDI electro-deionization desalination process, acid and alkali regeneration is not required, which is environmentally friendly and pollution-free. Compared with the traditional mixed bed desalination process, the operating cost is low, the product water quality is stable, and the design of the concentrate circulation pump to circulate the concentrate improves the water utilization rate and reduces the discharge of concentrate. Ultrapure water is directly produced and stored in the ultrapure water tank. The whole process can be run continuously without the need for shutdown regeneration, which is suitable for the use of continuous water supply. The stacked structure of the EDI membrane stack is compact and occupies little space, which meets the design requirements of the integrated skid-mounted device.

[0025] Optionally, the online monitoring component includes a monitoring probe group and a corresponding intelligent control module. The monitoring probe group includes a water quality sensor, a pressure sensor, and a flow sensor. The water quality sensor, pressure sensor, and flow sensor are all connected to the intelligent control module via signal cables.

[0026] By adopting the above technical solution, the water quality, pressure, and flow rate of each treatment unit are monitored online in real time. All data is transmitted to the intelligent control module, which can automatically adjust the equipment operating parameters. When water quality exceeds the standard, pressure is abnormal, or flow rate is abnormal, it can automatically alarm and shut down to avoid damaging the equipment or producing substandard ultrapure water. This effectively ensures the stability and reliability of the equipment operation, has a high degree of automation, does not require 24-hour manual supervision, and reduces labor costs.

[0027] In summary, this application includes at least one of the following beneficial technical effects: The equipment of this application has a high degree of integration, with all processing units integrated within a skid-mounted main housing. The overall structure is compact and small in size, facilitating overall hoisting and transportation. It can be flexibly deployed in various scenarios such as laboratories, small parts cleaning production lines, and field work sites. The installation and commissioning cycle is short, significantly reducing on-site installation workload compared to split-type ultrapure water equipment. Simultaneously, it solves the problem of external impurities contaminating the internal pipelines and filter membranes during ultrapure water unit maintenance. For single-sided maintenance, only one side of the housing cover needs to be opened, reducing the area of ​​the housing connected to the outside. Simultaneously, the corresponding side's air curtain forms a stable isolation barrier, effectively preventing dust and bacteria from the outside air from entering the housing, avoiding contamination of the ultrapure water preparation pathway, reducing the workload of post-maintenance cleaning and disinfection, extending the service life of each stage of filter membranes and membrane stacks, and reducing operating costs. Furthermore, this device adopts a three-stage pre-filtration plus two-stage reverse osmosis plus EDI deep desalination process, resulting in stable product water quality, no need for acid / alkali regeneration, good environmental performance, high water utilization rate, and operating costs far lower than traditional mixed-bed processes. Attached Figure Description

[0028] Figure 1 This is a perspective view of the overall structure in the embodiments of this application.

[0029] Figure 2 yes Figure 1 Front view of the device.

[0030] Figure 3 yes Figure 1 A 3D view of the device without the protective cover installed.

[0031] Figure 4 yes Figure 3 Front view of the device shown.

[0032] Figure 5 yes Figure 3 Rear view of the device shown.

[0033] Figure 6 yes Figure 3 Top view of the device shown.

[0034] Figure 7 This is a perspective view of the protective box cover in the embodiments of this application.

[0035] Figure 8 yes Figure 7 Side view of the device shown.

[0036] Explanation of reference numerals in the attached drawings: 1. Purification chamber assembly; 11. Main chamber shell; 111. Reinforced chamber panel; 112. Side frame; 113. Chamber cover; 114. Side door; 115. Auxiliary guide rail; 12. Protective chamber cover; 121. Internal cover; 122. Buffer strip; 123. Connecting top pipe; 124. External connecting plate; 13. Air curtain shell; 131. High-speed jet head; 132. First air supply bend; 133. Second air supply bend; 14. Centrifugal fan; 141. Exhaust wide shell; 142. Three-way valve; 2. Control components; 21. Sliding seat; 22. Linkage bracket; 221. Middle plate; 222. Concave frame; 23. Drive assembly; 231. Gearbox; 232. Top motor; 233. Drive screw; 3. Pre-filtration assembly; 4. Reverse osmosis treatment assembly; 5. Environmental desalination assembly. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] This application discloses a skid-mounted integrated ultrapure water device. (Refer to...) Figure 1 , Figure 2 and Figure 3The skid-mounted integrated ultrapure water system includes a purification tank assembly 1, which includes a main tank shell 11 and protective covers 12. Two sets of protective covers 12 are provided, and the two sets of protective covers 12 are respectively installed at the front and rear ends of the main tank shell 11. The upper end of the protective covers 12 is rotatably connected to the main tank shell 11. An air curtain assembly that opens synchronously with the protective covers 12 is fixedly installed on the main tank shell 11. The upper end of the main tank shell 11 is also provided with a control component 2 for controlling the opening of the two sets of protective covers 12 respectively. A pre-filtration assembly 3, a reverse osmosis treatment assembly 4, and an environmental desalination assembly 5 are fixedly installed in the main tank shell 11. Online monitoring components are installed on the pre-filtration assembly 3, the reverse osmosis treatment assembly 4, and the environmental desalination assembly 5. By integrating all water treatment components into the main housing 11, the device achieves a skid-mounted integrated design, facilitating overall transportation and on-site installation. It features independently rotatable protective covers 12 at the front and rear, along with synchronously opening air curtain components and controls 2 that allow for separate opening of the covers. This design allows for opening only one side of the cover during maintenance, significantly reducing the probability of external impurities entering the housing and contaminating the water treatment pathways. Furthermore, once the covers are open, the air curtain forms a continuous air barrier, effectively preventing dust and bacteria from entering the housing and ensuring the cleanliness of the ultrapure water preparation environment. The device also incorporates a multi-stage process including three-stage pretreatment, reverse osmosis treatment, and deep desalination, along with online monitoring components, ensuring that the produced water quality consistently meets ultrapure water standards. The overall structure is compact and highly integrated, making it suitable for small-scale mobile ultrapure water preparation needs.

[0039] Reference Figure 2 , Figure 3 and Figure 5The main housing 11 includes a reinforcing panel 111, a side frame 112, and a cover plate 113. The side frame 112 is vertically fixed on both sides of the reinforcing panel 111, and a side door 114 that can be flipped open is installed on the outer side of the side frame 112. The cover plate 113 is installed on the upper end face of the side frame 112, and the cover plate 113 is sealed and fixedly connected to the side frame 112. Positioning shafts for installing the protective cover 12 are also provided on both sides of the cover plate 113, and an auxiliary guide rail 115 is fixedly installed in the middle of the upper end face of the cover plate 113. The main housing 11 is formed by splicing together reinforced box panels 111, side frames 112 and box cover 113. The structural strength meets the stress requirements of skid-mounted hoisting and transportation. Side doors 114 that can be flipped open are set on both sides to facilitate daily maintenance of the pipes and interfaces on the side of the main housing 11. The positioning shaft provides a stable and reliable rotating installation base for the protective box cover 12. The auxiliary guide rail 115 provides precise guidance for the sliding movement of the control component 2, ensuring that the sliding seat 21 moves smoothly without jamming. The overall structure is easy to assemble and has good sealing performance, which can effectively prevent external dust and debris from entering the box from the top of the box and contaminating the components. The air curtain assembly includes two sets of air curtain shells 13. The air curtain shells 13 are fixedly installed on both sides of the lower end face of the box cover plate 113, and the air curtain shells 13 are set as strip structures. Several sets of high-speed jet heads 131 are evenly fixed on the lower end face of the air curtain shells 13. The upper end face of the box cover plate 113 is fixedly installed with a first air supply bend 132 and a second air supply bend 133 respectively connected to the two sets of air curtain shells 13. The upper end face of the box cover plate 113 is also fixedly installed with a centrifugal fan 14 that supplies air to the two sets of air curtain shells 13. The outlet of the centrifugal fan 14 is equipped with an exhaust wide shell 141. The exhaust wide shell 141 is connected to the first air supply bend 132 and the second air supply bend 133 through a three-way valve 142. The exhaust wide shell 141 is sealed to the air inlet of the three-way valve 142. The first air supply bend 132 and the second air supply bend 133 are sealed to the first air outlet and the second air outlet of the three-way valve 142 respectively. Two sets of air curtain shells 13 are arranged on both sides of the lower end of the cover plate 113, corresponding to the front and rear sets of protective box covers 12. When either protective box cover 12 is opened, the high-speed jet head 131 on the corresponding side can spray high-speed airflow downward to form an air curtain, which completely covers the open box opening. The air supply path is switched by a three-way valve 142. Only one centrifugal fan 14 is needed to supply air to the two sets of air curtains separately, which greatly reduces the number of components in the equipment, reduces the production cost and overall weight of the equipment, and meets the lightweight design requirements of the skid-mounted device. The high-speed jet heads 131 are evenly arranged to ensure the continuity and airtightness of the air curtain, and there will be no gaps that allow external pollutants to pass through the air curtain and enter the box.

[0040] Reference Figure 7 and Figure 8The protective cover 12 includes an inner cover plate 121, buffer strips 122, a connecting top tube 123, and an outer connecting plate 124. The buffer strips 122 are evenly fixed on the outer surface of the inner cover plate 121. The connecting top tube 123 is fixedly installed on the head of the inner cover plate 121 and is rotatably mounted on the positioning shaft. The outer connecting plate 124 is fixedly installed in the middle of the outer side of the connecting top tube 123. The inner cover plate 121 serves as the main structure of the protective cover 12. The buffer strips 122 are evenly arranged on its outer side. When a collision occurs during the closing or opening of the protective cover 12, the buffer strips 122 can absorb the impact energy and prevent the cover from deforming and being damaged. The connecting top tube 123 is rotatably sleeved on the positioning shaft and, together with the outer connecting plate 124, achieves a transmission connection with the control component 2. The force is even and stable during rotation, and there will be no uneven wear or shaking, effectively extending the service life of the protective cover 12.

[0041] Reference Figure 2 , Figure 3 and Figure 6 The control component 2 includes a sliding seat 21, a linkage bracket 22, and a drive assembly 23 for moving the sliding seat 21. The sliding seat 21 is configured as two sets, and the two sets of sliding seats 21 are respectively installed at both ends of the auxiliary guide rail 115. The sliding seat 21 is slidably connected to the auxiliary guide rail 115. The linkage bracket 22 includes a middle plate 221 and a concave frame 222 connected to the outer connecting plate 124. One end of the middle plate 221 is rotatably connected to the sliding seat 21, and the middle part of the concave frame 222 is fixedly connected to the other end of the middle plate 221. Both ends of the concave frame 222 are rotatably connected to the outer connecting plate 124. The drive assembly 23 includes a reduction gearbox 231, a top motor 232, and a drive screw 233. The reduction gearbox 231 is fixedly installed on the upper end face of the cover plate 113. The top motor 232 is connected to the drive screw 233 through the reduction gearbox 231, and the sliding seat 21 is provided with a threaded groove that cooperates with the drive screw 233. The sliding seat 21 is driven to move along the auxiliary guide rail 115 by the drive screw 233. The two sets of sliding seats 21 are controlled independently, which makes it easy for the two sets of protective box covers 12 to be opened and closed. With the linkage bracket 22, the protective box cover 12 is driven to rotate around the positioning axis, which can realize the individual opening and closing or synchronous opening of the two sets of protective box covers 12. The gearbox 231, in conjunction with the transmission method of the drive screw 233, has a large output torque, which can stably drive the box cover to open without the problem of overload slippage.

[0042] Reference Figure 1 , Figure 4 and Figure 5The pre-filtration component 3 includes a basket filter, an ultrafiltration depth treatment component, and a security filter. One end of the basket filter is connected to an external water supply pipe, and the other end is equipped with an ultrafiltration feed pump to supply water to the ultrafiltration depth treatment component. The outlet of the ultrafiltration depth treatment component is connected to the inlet of the security filter. Through this three-stage pre-filtration design, impurities of different particle sizes in the raw water are progressively removed. First, the basket filter removes large particles; then, ultrafiltration removes colloids, large organic molecules, and bacteria; and finally, the security filter removes fine filter residue carried out by ultrafiltration. This step-by-step filtration effectively protects the membrane of the subsequent reverse osmosis treatment component 4 from being scratched and clogged by large particles, extending the service life of the reverse osmosis membrane and ensuring the stability of the subsequent water treatment process. The ultrafiltration deep treatment assembly includes a treatment chamber, a connecting cap, and a hollow fiber ultrafiltration membrane. The connecting cap is sealed and fixed to the head of the treatment chamber, and has an inlet pipe connected to the ultrafiltration feed water pump. The hollow fiber ultrafiltration membrane is fixedly installed in the treatment chamber, and a drain pipe is fixedly installed on the lower end of the treatment chamber. The hollow fiber ultrafiltration membrane has a high packing density, a large filtration area, and a strong processing capacity per unit volume. The sealing structure of the connecting cap facilitates disassembly, cleaning, and replacement of the ultrafiltration membrane, resulting in low maintenance costs. The layout design of the inlet and drain pipes ensures that water flows evenly through all hollow fiber ultrafiltration membranes, resulting in high filtration efficiency and preventing water flow short-circuiting, effectively guaranteeing the pre-filtration treatment effect.

[0043] Reference Figure 1 , Figure 4 and Figure 5The reverse osmosis treatment component 4 includes a primary RO tank and a secondary RO tank. The inlet of the primary RO tank is equipped with a primary reverse osmosis membrane, and its inlet is connected to a drain pipe. The secondary RO tank is connected to the drain of the primary RO tank, and a secondary reverse osmosis membrane is installed between the two tanks. An RO feed pump is fixedly installed in the secondary RO tank, and its outlet is connected to the environmental desalination component 5. This dual-stage treatment structure, combining primary and secondary reverse osmosis, can remove over 98% of dissolved salts, most organic matter, and bacteria from the raw water. Compared to single-stage reverse osmosis, the permeate water quality is better, consistently meeting the feed water quality requirements for subsequent deep desalination components. The RO feed pump provides a stable water supply, ensuring stable inlet pressure and smooth operation of the subsequent EDI deep desalination process. The environmentally friendly desalination component 5 includes an EDI membrane stack, an EDI DC power supply, a concentrate circulation pump, and an EDI permeate outlet valve. The EDI membrane stack consists of alternating layers of anion and cation exchange membranes, a desalination chamber, a concentrate chamber, and electrodes. The desalination chamber is connected to the outlet of the RO feed water pump. The concentrate circulation pump is located outside the EDI membrane stack, and its inlet is connected to the outlet of the EDI membrane stack's concentrate chamber. The outlet of the concentrate circulation pump is connected to the inlet of the EDI membrane stack's concentrate chamber. The inlet of the EDI permeate outlet valve is connected to the desalination outlet of the EDI membrane stack, and the outlet of the EDI permeate outlet valve is connected to an ultrapure water tank. Employing EDI (Electrodeionization) desalination technology, this system eliminates the need for acid / alkali regeneration, making it environmentally friendly and pollution-free. Compared to traditional mixed-bed desalination processes, it boasts lower operating costs and more stable product water quality. The concentrate circulation pump design improves water utilization and reduces concentrate discharge. Ultrapure water is directly produced and stored in an ultrapure water tank. The entire process can operate continuously without downtime for regeneration, meeting the requirements for continuous water supply. The compact stacked structure of the EDI membrane stack occupies little space, conforming to the design requirements of an integrated skid-mounted unit. The online monitoring components include a monitoring probe group and a corresponding intelligent control module. The monitoring probe group includes water quality sensors, pressure sensors, and flow sensors, all of which are connected to the intelligent control module via signal cables. The system monitors the water quality, pressure, and flow rate of each treatment unit in real time. All data is transmitted to the intelligent control module, which automatically adjusts the equipment's operating parameters. When water quality exceeds the standard, pressure is abnormal, or flow rate is abnormal, the system can automatically alarm and shut down to avoid damaging the equipment or producing substandard ultrapure water. This effectively ensures the stability and reliability of the equipment's operation. The system is highly automated and does not require 24-hour manual supervision, thus reducing labor costs.

[0044] The implementation principle of the skid-mounted integrated ultrapure water device in this embodiment is as follows: During normal water production, raw water enters the pre-filtration component 3 through an external water source pipe. First, it passes through a basket filter to remove large mechanical impurities and processing debris. The filtered raw water is then pressurized by an ultrafiltration feed pump and sent to the ultrafiltration deep treatment component. The hollow fiber ultrafiltration membrane removes colloids, large organic molecules, and most bacteria from the raw water. The filtered water is then sent to a security filter, which removes fine filter residue carried out during the ultrafiltration process, completing the pre-filtration treatment and preventing large impurities from damaging the subsequent reverse osmosis membrane. The pre-filtered water is then sent to the first-stage RO water tank, where the first-stage reverse osmosis membrane removes more than 90% of dissolved salts, most organic matter, and bacteria. The filtered water is then sent to the second-stage RO water tank, where the second-stage reverse osmosis membrane further desalinates the water. With a desalination rate exceeding 98%, the desalinated water is pressurized by the RO feed water pump and sent to the desalination chamber of the EDI membrane stack in the environmentally friendly desalination component 5. Under the action of the electric field, the anions and cations in the desalination water pass through their corresponding ion exchange membranes into the concentrate chamber. The concentrate in the concentrate chamber is circulated by the concentrate circulation pump, continuously carrying out ions. Finally, the desalination chamber produces ultrapure water that meets the standards, which is sent to the ultrapure water tank for storage through the EDI product water outlet valve, completing the water production process. During operation, the online monitoring components of each treatment unit monitor the water quality, pressure, and flow rate at each point in real time. All data is transmitted to the intelligent control module. The intelligent control module automatically adjusts the speed and operating pressure of each pump according to the monitoring data to ensure stable operating parameters. When water quality exceeds the standard, pressure is abnormal, or flow rate is abnormal, the system automatically alarms and shuts down to avoid equipment damage or the production of substandard water.

[0045] When maintenance is required on a component on one side of the device, the operator sends a command to open the corresponding protective cover 12 through the control system. The intelligent control module controls the top motor 232 to start. The top motor 232 drives the drive screw 233 to rotate through the reduction gearbox 231. The drive screw 233 drives the corresponding sliding seat 21 to move along the auxiliary guide rail 115 towards the center of the cover plate 113. The movement of the sliding seat 21 drives the linkage bracket 22 to move. The linkage bracket 22 pulls the outer connecting plate 124 of the protective cover 12, causing the connecting top pipe 123 to rotate around the positioning axis, so that the protective cover 12 on the corresponding side opens smoothly. At the same time as the protective cover 12 opens, the intelligent control module controls the three-way valve 142 to switch the direction, thereby changing the power of the centrifugal fan 14. The air supply bend on the corresponding side is connected to the air supply pipe, and high-pressure air is sent into the air curtain shell 13 on the corresponding side. High-speed airflow is sprayed downward through the high-speed jet heads 131 evenly arranged at the lower end of the air curtain shell 13, forming a continuous air curtain at the open box opening, isolating the space inside the box from the outside air, and preventing external pollutants from entering the box and contaminating other clean components. After maintenance is completed, the operator sends a shutdown command, the top motor 232 reverses, drives the sliding seat 21 to reset, and the linkage bracket 22 pushes the protective box cover 12 to close. At the same time, the three-way valve 142 reverses, stopping the air supply to the corresponding side air curtain, and completing the maintenance operation. During the maintenance process, only the box cover on the side that needs maintenance is opened, while the other side remains closed. With the help of the air curtain barrier, the probability of external contamination is minimized.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A skid-mounted integrated ultrapure water system, comprising a purification tank unit (1), characterized in that: The purification box assembly (1) includes a main box shell (11) and a protective box cover (12). The protective box cover (12) is set in two sets, and the two sets of protective box covers (12) are respectively installed at the front and rear ends of the main box shell (11). The upper end of the protective box cover (12) is rotatably connected to the main box shell (11). An air curtain assembly that opens synchronously with the protective box cover (12) is fixedly installed on the main box shell (11). A control component (2) for controlling the opening of the two sets of protective box covers (12) is also provided on the upper end face of the main box shell (11). A pre-filtration assembly (3), a reverse osmosis treatment assembly (4), and an environmental protection desalination assembly (5) are fixedly installed in the main box shell (11). An online monitoring assembly is installed on the pre-filtration assembly (3), the reverse osmosis treatment assembly (4), and the environmental protection desalination assembly (5).

2. The skid-mounted integrated ultrapure water device according to claim 1, characterized in that: The main housing (11) includes a reinforced housing plate (111), a side frame (112), and a housing cover plate (113). The side frame (112) is vertically fixed on both sides of the reinforced housing plate (111), and a side door (114) that can be flipped open is installed on the outer side of the side frame (112). The housing cover plate (113) is installed on the upper end face of the side frame (112), and the housing cover plate (113) is sealed and fixedly connected to the side frame (112). The housing cover plate (113) is also provided with positioning shafts (114) for installing the protective housing cover (12) on both sides, and an auxiliary guide rail (115) is fixedly installed in the middle of the upper end face of the housing cover plate (113).

3. The skid-mounted integrated ultrapure water device according to claim 2, characterized in that: The air curtain assembly includes two sets of air curtain shells (13). The air curtain shells (13) are fixedly installed on both sides of the lower end face of the box cover plate (113), and the air curtain shells (13) are set as strip structures. Several sets of high-speed jet heads (131) are evenly fixed on the lower end face of the air curtain shells (13). The upper end face of the box cover plate (113) is fixedly installed with a first air supply bend (132) and a second air supply bend (133) respectively connected to the two sets of air curtain shells (13). The upper end face of the box cover plate (113) is also fixedly installed with a first air supply bend (132) and a second air supply bend (133) for the two sets of air curtain shells (13). The centrifugal fan (14) is supplied with air by the air curtain shell (13). The air outlet of the centrifugal fan (14) is equipped with an exhaust wide shell (141). The exhaust wide shell (141) is connected to the first air supply bend (132) and the second air supply bend (133) through a three-way valve (142). The exhaust wide shell (141) is sealed to the air inlet of the three-way valve (142). The first air supply bend (132) and the second air supply bend (133) are respectively sealed to the first air outlet and the second air outlet of the three-way valve (142).

4. The skid-mounted integrated ultrapure water device according to claim 3, characterized in that: The protective box cover (12) includes an inner cover plate (121), a buffer strip (122), a connecting top tube (123), and an outer connecting plate (124). The buffer strip (122) is evenly fixed on the outer side of the inner cover plate (121). The connecting top tube (123) is fixedly installed on the head of the inner cover plate (121) and is rotatably installed on the positioning shaft (114). The outer connecting plate (124) is fixedly installed in the middle of the outer side of the connecting top tube (123).

5. The skid-mounted integrated ultrapure water device according to claim 4, characterized in that: The control component (2) includes a sliding seat (21), a linkage bracket (22), and a drive assembly (23) for moving the sliding seat (21). The sliding seat (21) is configured in two sets, and the two sets of sliding seats (21) are respectively installed at both ends of the auxiliary guide rail (115). The sliding seat (21) is slidably connected to the auxiliary guide rail (115). The linkage bracket (22) includes a middle plate (221) and a concave frame (222) connected to the outer connecting plate (124). One end of the middle plate (221) is rotatably connected to the sliding seat (21), and the concave frame (222) is rotatably connected to the sliding seat (21). The middle part of the concave frame (222) is fixedly connected to the other end of the middle plate (221). The two ends of the concave frame (222) are rotatably connected to the outer connecting plate (124). The drive assembly (23) includes a reduction gearbox (231), a top motor (232) and a drive screw (233). The reduction gearbox (231) is fixedly installed on the upper end face of the box cover plate (113). The top motor (232) is connected to the drive screw (233) through the reduction gearbox (231). The sliding seat (21) is provided with a threaded groove that cooperates with the drive screw (233).

6. The skid-mounted integrated ultrapure water device according to claim 1, characterized in that: The pre-filtration component (3) includes a basket filter, an ultrafiltration deep treatment component and a security filter. One end of the basket filter is equipped with an external water source pipe, and the other end of the basket filter is equipped with an ultrafiltration water supply pump for supplying water to the ultrafiltration deep treatment component. The liquid outlet of the ultrafiltration deep treatment component is connected to the liquid inlet of the security filter.

7. The skid-mounted integrated ultrapure water device according to claim 6, characterized in that: The ultrafiltration deep treatment assembly includes a treatment box, a connecting cap, and a hollow fiber ultrafiltration membrane. The connecting cap is sealed and fixed to the head of the treatment box, and an inlet pipe connected to the ultrafiltration feed water pump is provided on the connecting cap. The hollow fiber ultrafiltration membrane is fixedly installed in the treatment box, and a drain pipe is fixedly installed on the lower end face of the treatment box.

8. The skid-mounted integrated ultrapure water device according to claim 7, characterized in that: The reverse osmosis treatment component (4) includes a primary RO water tank and a secondary RO water tank. The inlet of the primary RO water tank is equipped with a primary reverse osmosis membrane, and the inlet of the primary RO water tank is connected to the drain pipe. The secondary RO water tank is connected to the drain of the primary RO water tank, and a secondary reverse osmosis membrane is installed between the secondary RO water tank and the primary RO water tank. An RO feed water pump is fixedly installed in the secondary RO water tank, and the outlet of the RO feed water pump is connected to the environmental protection desalination component (5).

9. The skid-mounted integrated ultrapure water device according to claim 8, characterized in that: The environmentally friendly desalination component (5) includes an EDI membrane stack, an EDI DC power supply, a concentrate circulation pump, and an EDI product water outlet valve. The EDI membrane stack is composed of alternating stacked anion and cation exchange membranes, a desalination chamber, a concentrate chamber, and electrodes. The desalination chamber is connected to the outlet of the RO feed water pump. The concentrate circulation pump is located outside the EDI membrane stack, and its inlet is connected to the outlet of the concentrate chamber of the EDI membrane stack. The outlet of the concentrate circulation pump is connected to the inlet of the concentrate chamber of the EDI membrane stack. The inlet of the EDI product water outlet valve is connected to the desalination outlet of the EDI membrane stack, and the outlet of the EDI product water outlet valve is connected to an ultrapure water tank.

10. The skid-mounted integrated ultrapure water device according to any one of claims 1-9, characterized in that: The online monitoring component includes a monitoring probe group and a corresponding intelligent control module. The monitoring probe group includes a water quality sensor, a pressure sensor, and a flow sensor. The water quality sensor, pressure sensor, and flow sensor are all connected to the intelligent control module via signal cables.

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