Ultrapure water preparation equipment with biological pretreatment filter and process of ultrapure water preparation equipment

Abstract

The invention relates to the technical field of ultrapure water preparation, and particularly discloses ultrapure water preparation equipment with a biological pretreatment filter and a process thereof.The ultrapure water preparation equipment comprises a base, a frame is fixedly mounted at the top of the base, an ultrapure water preparation device is mounted in the frame, a biological purifier is mounted on one side of the ultrapure water preparation device, and the biological purifier is mounted on the other side of the ultrapure water preparation device; a driving mechanism, a cleaning mechanism and a water guide mechanism are arranged for cooperative operation, powerful assistance is provided for ultrapure water preparation, and a second motor is started; the rotating shaft is driven to rotate through the linkage of the synchronous wheel and the synchronous belt, so that the auger and the cleaning arm work in the activated carbon adsorption barrel, the cleaning arm cleans the inner wall to prevent blockage, the auger promotes water to surge, and the purification efficiency is improved; filtered water is rapidly dredged to enter a subsequent treatment unit, so that efficient and smooth preparation of ultrapure water is realized, and the production efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrapure water preparation, in particular to ultrapure water preparation equipment with a biological pretreatment filter and a process thereof. Background Art

[0002] Ultrapure water plays a pivotal role in modern industry and scientific research. Ultrapure water is produced by the American scientific community through distillation, deionization, reverse osmosis technology or other supercritical fine technology. It has extremely high purity. It not only almost completely removes the conductive medium in the water, but also removes the undissociated colloids, gases and organic matter in the water to a very low level, which is difficult to achieve with general processes.

[0003] The preparation process of ultrapure water is complex and delicate. It usually adopts four steps: pretreatment, reverse osmosis technology, ultrapurification treatment and post-treatment, and comprehensively uses multiple treatment methods such as multi-stage filtration, high-performance ion exchange units, ultrafiltration filters, ultraviolet lamps, TOC removal devices, etc. Pretreatment can initially remove suspended particles, residual chlorine and other impurities in the water; reverse osmosis technology is based on the principle of semi-permeable membranes, and can efficiently remove most salts and small molecular impurities under pressure; ion exchange resins in ultrapurification treatment can further reduce the ion content in the water; ultrafiltration, ultraviolet lamp sterilization and TOC removal devices in post-treatment can ensure that colloids, bacteria, large molecular organic matter and organic carbon in the water are completely removed, thereby meeting the needs of semiconductor manufacturing, electronics industry, pharmaceuticals, scientific research and other fields with extremely stringent requirements on water quality;

[0004] However, the existing ultrapure water preparation technology and equipment have certain limitations. Take the application of activated carbon in the ultrapure water preparation process as an example. As a commonly used filtering and adsorption material, activated carbon plays an important role in ultrapure water preparation and can effectively adsorb organic matter, residual chlorine and other impurities in water. However, after long-term use, a large amount of impurities will adhere to the surface of the activated carbon, resulting in a poor adsorption effect, which in turn affects the overall filtration effect. Once this happens, if the activated carbon is to be removed and replaced, the equipment must be stopped. Frequent replacement of activated carbon will not only interrupt the ultrapure water preparation process, but also greatly affect the preparation efficiency and increase production costs. More importantly, in many cases, the activated carbon only has a large amount of impurities adhered to the outer surface, causing its filtration performance to decline, while the internal structure of the activated carbon has not actually reached the adsorption saturation state. In this case, replacing the activated carbon filter element will undoubtedly cause a waste of resources, which runs counter to the concept of sustainable development and increases the economic cost of ultrapure water preparation.

[0005] Therefore, in order to meet the growing demand for ultrapure water, improve the efficiency of ultrapure water preparation and reduce production costs, it is necessary to develop a new type of ultrapure water preparation equipment that can solve the problem of activated carbon adsorption saturation, avoid the impact of frequent replacement of activated carbon filter elements on preparation efficiency, and reduce resource waste. Summary of the invention

[0006] The object of the present invention is to provide an ultrapure water preparation device with a biological pretreatment filter and a process thereof, so as to solve the problem in the above-mentioned background technology that the activated carbon filter element is easily blocked during the application of the prior art, resulting in the need for frequent replacement of the activated carbon filter element.

[0007] To achieve the above-mentioned object, the present invention provides an ultrapure water preparation device with a biological pretreatment filter, comprising a base, a frame fixedly installed on the top of the base, an ultrapure water preparation device installed inside the frame, a biological purifier installed on one side of the ultrapure water preparation device, the biological purifier and the ultrapure water preparation device are connected, a substrate fixedly installed on the front of the ultrapure water preparation device, a controller fixedly installed on the front of the substrate, and a drain pipe fixedly installed on the output end of the ultrapure water preparation device;

[0008] The biological purifier includes a tank body and an adjusting mechanism. The tank body is fixedly installed in the inscribed part of a frame body and is located on one side of an ultrapure water preparation device. A drainage bucket is fixedly installed at the bottom of the tank body, and the bottom of the drainage bucket is communicated with the ultrapure water preparation device. The top of the tank body is covered with a top cover. The adjusting mechanism is fixedly installed on the back side of the frame body close to the tank body, and the top of the adjusting mechanism is connected to the rear side of the top cover. A biological filter core is movably installed inside the tank body, a cleaning mechanism is movably installed on the inner side of the biological filter core, and a water guide mechanism is movably installed on the outer side of the biological filter core. A driving mechanism is fixedly installed on the top of the top cover, and the bottom output end of the driving mechanism is respectively connected to the water guide mechanism and the cleaning mechanism.

[0009] Furthermore, the adjustment mechanism includes a guide rail, which is fixedly installed on the back side of the frame close to the tank body, and the bottom of the guide rail is fixedly connected to a first motor, the output end of the first motor passes through the guide rail and is fixedly connected to a screw rod, the outer surface of the screw rod is threadedly connected to a slider, the slider is slidably connected to the inside of the guide rail, and a support arm is fixedly installed on the rear side of the slider, and the top of the support arm is fixedly connected to the top cover.

[0010] Furthermore, the biological filter element includes a chassis, which is fixedly installed at the bottom of the tank body, and drainage grooves are arranged at equal intervals on the outer edge of the chassis, and the bottom of the drainage grooves is connected to the drainage bucket. An annular mounting groove is arranged on the top of the chassis, and an annular mounting groove is also arranged on the bottom of the top cover. A filter cartridge is inserted between the inner sides of the two annular mounting grooves, and the top and bottom of the filter cartridge are sealed by a sealing gasket and the annular mounting groove.

[0011] Furthermore, the biological filter element also includes a water supply hose and water guide holes. The water supply hose is fixedly installed on the top side of the top cover. The water guide holes are arranged in a ring shape with equal intervals and opened at the bottom of the top cover. The water guide holes are all connected to the interior of the filter cartridge.

[0012] Furthermore, the filter cartridge is composed of an activated carbon adsorption inner cartridge and a cylindrical ion exchange resin filter element, and the activated carbon adsorption inner cartridge is installed on the inner side of the cylindrical ion exchange resin filter element.

[0013] Furthermore, the driving mechanism includes a concave frame, which is fixedly installed on the top of the top cover, and a second motor is fixedly installed on the top of the concave frame. The output end of the second motor passes through the concave frame and is fixedly connected to a synchronous wheel. One side of the top of the top cover is also rotatably connected to a synchronous wheel. The two synchronous wheels are connected by a synchronous belt transmission. The bottom of the synchronous wheel in the middle is connected to the cleaning mechanism, and the bottom of the synchronous wheel on the displacement side is connected to the water guide mechanism.

[0014] Furthermore, the cleaning mechanism includes a rotating shaft, which is rotatably connected to the middle of the bottom of the top cover, and an auger and a cleaning arm are fixedly installed on the outer surface of the rotating shaft. The cleaning arms are arranged at equal intervals on the outside of the auger, and the outsides of the cleaning arms are fixedly connected to brush plates, and the outside of the brush plates are fitted and connected to the inner wall of the activated carbon adsorption inner cylinder.

[0015] Furthermore, the water guiding mechanism includes an annular groove and a gear, wherein the annular groove is opened at the bottom of the top cover and is located on the outside of the annular mounting groove, the gear is rotatably connected to one side of the bottom of the top cover, the top of the gear is connected to the bottom of a synchronous wheel located on one side, the inside of the annular groove is rotatably connected with a gear ring, the gear ring and the gear are meshingly connected, a mounting ring is fixedly installed at the bottom of the gear ring, a spiral driving paddle is fixedly installed at the bottom of the mounting ring, and the spiral driving paddle is sleeved and rotatably mounted on the outside of a cylindrical ion exchange resin filter element.

[0016] Furthermore, a threaded joint is fixedly installed on the outer end of the water filling hose, and a mounting flange is fixedly installed on the outer end of the drain pipe.

[0017] A process for preparing ultrapure water with a biological pretreatment filter comprises the following steps:

[0018] Step 1: Connect the water supply pipe and connect the threaded joint on the outside of the water supply hose to the external water supply pipe;

[0019] Step 2: Preliminary filtration, water flows through the water supply hose and is injected into the filter cartridge at the bottom of the top cover through the water guide hole, first entering the activated carbon adsorption cartridge, and then entering the cylindrical ion exchange resin filter element. After double filtration, the water passes through the filter cartridge and enters the inside and outside of the tank body;

[0020] Step 3: Purification treatment, start the second motor, the output shaft drives the synchronous wheel to rotate, and the synchronous belt drives another synchronous wheel to rotate. The middle synchronous wheel drives the rotating shaft to rotate, driving the auger and the cleaning arm to do circular motion in the activated carbon adsorption cylinder;

[0021] Step 4: Drain the filtered water. The outer synchronous wheel drives the gear to rotate, meshes with the gear ring to drive the gear ring to rotate, drives the mounting plate and the bottom spiral drive slurry to rotate, and guides the infiltrated water downward to the drainage trough and drainage bucket, and enters the ultrapure water preparation device for subsequent treatment;

[0022] Step 5: Collect and drain water. The water inside and outside the tank is collected through drainage grooves at equal intervals on the outside of the chassis and flows into the drainage bucket, and then is introduced into the subsequent processing unit of the ultrapure water preparation device from the drainage bucket;

[0023] Step 6: Clean, maintain or replace the filter cartridge. When maintenance is required, start the first motor, and its output shaft drives the screw to rotate in the guide rail, driving the slider to slide, driving the support arm, top cover and related mechanisms to rise, and the annular mounting groove is detached from the top of the filter cartridge, and the filter cartridge can be pulled out to complete the disassembly.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] First, in the present invention, the device uses a threaded joint of a water supply hose to easily connect to an external water supply pipe, and accurately introduces water into the filter cartridge at the bottom of the top cover with the help of a water guide hole. The water first passes through an activated carbon adsorption cartridge to adsorb impurities, and then passes through a cylindrical ion exchange resin filter element to filter ions, thereby achieving double purification. The filtered water flows into the ultrapure water preparation device through a bottom plate drainage trough and a drainage bucket. This process not only ensures the stability of the water supply, but also effectively improves the water quality through multi-stage filtration, thereby providing a high-quality water source for subsequent ultrapure water preparation, and meeting the strict requirements for high purity of ultrapure water.

[0026] Secondly, in the present invention, in terms of equipment maintenance, when the filter cartridge needs to be replaced, the first motor is started, the motor drives the screw to rotate, drives the slider to slide in the guide rail, and then drives the support arm and the top cover to move upward. At this time, the top cover is separated from the top of the tank body, causing the annular mounting groove to be separated from the upper end of the filter cartridge, and the filter barrel is separated from the inside of the annular mounting groove. At this time, the filter cartridge can be pulled out. Its installation method abandons the traditional threaded connection method, greatly simplifies the disassembly and assembly process of the filter cartridge, shortens the maintenance time, and improves the operation efficiency of the equipment;

[0027] Thirdly, in the present invention, by setting up a driving mechanism, a cleaning mechanism and a water guiding mechanism to work together, a strong assist is provided for the preparation of ultrapure water, and the second motor is started; through the linkage of the synchronous wheel and the synchronous belt, the rotating shaft is driven to rotate, so that the auger and the cleaning arm work in the activated carbon adsorption cylinder, the cleaning arm cleans the inner wall to prevent blockage, and the auger promotes the surge of water to improve the purification efficiency. At the same time, the outer synchronous wheel drives the gear and the gear ring to drive the mounting plate and the spiral drive paddle to quickly guide the filtered water into the subsequent treatment unit, so as to realize the efficient and smooth preparation of ultrapure water and further improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a side view structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the rear view structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure in the present invention when viewed from above;

[0032] Figure 5 It is a schematic diagram of the structure of the biological purifier in the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of the tank body in the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the cleaning mechanism, the water guiding mechanism and the tank body in the separated state in the present invention;

[0035] Figure 8 It is a schematic diagram of the cleaning mechanism and the water guiding mechanism in the present invention;

[0036] Fig. 9 It is a schematic diagram of the gear ring and gear structure in the present invention;

[0037] Fig.10 For the present invention Figure 8 A is an enlarged structural diagram of FIG.

[0038] In the figure: 1, base; 2, frame; 3, ultrapure water preparation device; 4, controller; 5, substrate; 6, biological purifier; 61, tank; 62, adjustment mechanism; 621, guide rail; 622, first motor; 623, screw rod; 624, slider; 625, support arm; 63, drainage bucket; 64, top cover; 65, biological filter element; 651, chassis; 652, drainage trough; 653, annular installation groove; 654, water supply hose; 655, water guide hole; 656, filter cartridge; 6561, Activated carbon adsorption inner cylinder; 6562, cylindrical ion exchange resin filter element; 66, cleaning mechanism; 661, rotating shaft; 662, auger; 663, cleaning arm; 664, brush plate; 67, water guide mechanism; 671, annular groove; 672, gear; 673, gear ring; 674, mounting ring; 675, spiral drive paddle; 68, driving mechanism; 681, concave frame; 682, second motor; 683, synchronous wheel; 684, synchronous belt; 7, drain pipe; 8, threaded joint; 9, mounting flange. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 10 In an embodiment of the present invention, an ultrapure water preparation device with a biological pretreatment filter includes a base 1, a frame 2 is fixedly installed on the top of the base 1, an ultrapure water preparation device 3 is installed inside the frame 2, a biological purifier 6 is installed on one side of the ultrapure water preparation device 3, the biological purifier 6 is connected to the ultrapure water preparation device 3, a substrate 5 is fixedly installed on the front of the ultrapure water preparation device 3, a controller 4 is fixedly installed on the front of the substrate 5, and a drain pipe 7 is fixedly installed on the output end of the ultrapure water preparation device 3;

[0041] The biological purifier 6 includes a tank body 61 and an adjusting mechanism 62. The tank body 61 is fixedly installed in the frame body and is located on one side of the ultrapure water preparation device 3. A drainage bucket 63 is fixedly installed at the bottom of the tank body 61. The bottom of the drainage bucket 63 is connected to the ultrapure water preparation device 3. The top of the tank body 61 is covered with a top cover 64. The adjusting mechanism 62 is fixedly installed on the back side of the frame body close to the tank body 61. The top of the adjusting mechanism 62 is connected to the back side of the top cover 64. A biological filter core 65 is movably installed inside the tank body 61. A cleaning mechanism 66 is movably installed on the inner side of the biological filter core 65. A water guide mechanism 67 is movably installed on the outer side of the biological filter core 65. A driving mechanism 68 is fixedly installed on the top of the top cover 64. The bottom output end of the driving mechanism 68 is respectively connected to the water guide mechanism 67 and the cleaning mechanism 66. When the ultrapure water preparation equipment with a biological pretreatment filter is working, an external water source first enters the biological purifier 6, and the water flows into the tank body 61 through a pipeline connected to the biological purifier 6. The biological filter element 65 in the tank body 61 performs biological pretreatment on the water to remove impurities, microorganisms, etc. in the water. The adjustment mechanism 62 installed on the back of the frame can adjust the top cover 64 to facilitate the maintenance of the biological filter element 65 and other components. The driving mechanism 68 is in operation, and its bottom output end drives the water guiding mechanism 67 and the cleaning mechanism 66 to work respectively. The water guiding mechanism 67 guides the water that has been preliminarily treated by the biological filter element 65 to the drainage bucket 63, and the water is sent to the ultrapure water preparation device 3 through the connection between the bottom of the drainage bucket 63 and the ultrapure water preparation device 3. In this process, the cleaning mechanism 66 works synchronously to clean the biological filter element 65 to prevent it from clogging and maintain good filtering performance. In the ultrapure water preparation device 3, the water that has been biologically pretreated is further treated to meet the ultrapure water standard. Finally, the ultrapure water is output through the drain pipe 7, and the operation of the entire equipment is uniformly regulated by the controller 4 installed on the front substrate 5 of the ultrapure water preparation device 3 to ensure stable and efficient operation of the equipment.

[0042] See also Figure 1-Figure 4The adjusting mechanism 62 includes a guide rail 621, which is fixedly installed on the back side of the frame 2 near the tank body 61. The bottom of the guide rail 621 is fixedly connected to a first motor 622, and the output end of the first motor 622 passes through the guide rail 621 and is fixedly connected to a screw rod 623. The outer surface of the screw rod 623 is threadedly connected to a slider 624, and the slider 624 is slidably connected to the inside of the guide rail 621. A support arm 625 is fixedly installed on the rear side of the slider 624, and the top of the support arm 625 is fixedly connected to the top cover 64. When it is necessary to maintain, replace or inspect the internal components of the biological purifier 6, such as the biological filter element 65, the adjusting mechanism 62 starts to work, and the first motor 622 installed at the bottom of the guide rail 621 is started, and its output end drives the screw rod 623 to rotate. The surface is threadedly connected to the slider 624, and the slider 624 can slide inside the guide rail 621. The rotational movement of the screw rod 623 is converted into a linear sliding of the slider 624 in the guide rail 621. As the slider 624 slides upward or downward in the guide rail 621, the support arm 625 fixed to the rear side of the slider 624 also moves accordingly. Because the top of the support arm 625 is fixedly connected to the top cover 64, the movement of the support arm 625 will drive the top cover 64 to rise or fall. When the top cover 64 rises, it is convenient for the staff to operate the biological filter element 65, the cleaning mechanism 66 and the water guide mechanism 67 in the tank body 61; when the top cover 64 falls, the biological purifier 6 can be restored to a normal working state, ensuring the stable operation of the biological purifier 6, thereby ensuring the normal operation of the entire ultrapure water preparation equipment.

[0043] See also Figure 5-Figure 10The biological filter element 65 includes a chassis 651, which is fixedly installed at the bottom of the tank body 61. Drain grooves 652 are evenly spaced at the outer edge of the chassis 651. The bottom of the drainage grooves 652 is connected to the drainage bucket 63. An annular mounting groove 653 is opened on the top of the chassis 651, and an annular mounting groove 653 is also opened at the bottom of the top cover 64. A filter cartridge 656 is inserted between the inner sides of the two annular mounting grooves 653. The top and bottom of the filter cartridge 656 are sealed by a sealing gasket and the annular mounting groove 653. The biological filter element 65 also includes a water supply hose 654 and a water guide hole 655. The water supply hose 654 is connected to the drainage bucket 63. 54 is fixedly installed on the top side of the top cover 64, and the water guide holes 655 are arranged in a ring shape at equal intervals and are opened at the bottom of the top cover 64. The water guide holes 655 are all connected to the inside of the filter cartridge 656. The filter cartridge 656 is composed of an activated carbon adsorption inner cylinder 6561 and a cylindrical ion exchange resin filter element 6562. The activated carbon adsorption inner cylinder 6561 is installed on the inner side of the cylindrical ion exchange resin filter element 6562. In the biological purification link of the ultrapure water preparation equipment, the biological filter element 65 plays a key role. The external water source enters the biological purifier 6 through the water supply hose 654 fixed on the top side of the top cover 64. After the water flows through the water supply hose 654 , through the water guide holes 655 arranged in a ring shape with equal intervals at the bottom of the top cover 64, it accurately flows into the interior of the filter cartridge 656. The filter cartridge 656 is composed of an inner activated carbon adsorption inner cartridge 6561 and an outer cylindrical ion exchange resin filter element 6562. First, the water flows through the activated carbon adsorption inner cartridge 6561, and the strong adsorption of the activated carbon is used to effectively remove organic matter, residual chlorine, and some heavy metal ions and other impurities in the water, completing the initial adsorption filtration. Then, the water after the preliminary filtration enters the cylindrical ion exchange resin filter element 6562, and through the ion exchange principle, various ions in the water are further removed, the resistivity of the water is reduced, and the water is improved. The water after double filtration passes through the filter cartridge 656 and enters the area above the chassis 651 at the bottom of the tank body 61. The drainage grooves 652 arranged at equal intervals on the outer edge of the chassis 651 collect the filtered water. Since the bottom of the drainage grooves 652 is connected to the drainage bucket 63, the water is transported to the ultrapure water preparation device 3 through the drainage bucket 63 for subsequent deep purification treatment. During the whole process, the top and bottom of the filter cartridge 656 are sealed with the top cover 64 and the annular mounting groove 653 on the chassis 651 through the sealing gasket to ensure that the water flow completes the purification process along the predetermined path and ensures the biological purification effect.

[0044] See also Figure 5-Figure 10The driving mechanism 68 includes a concave frame 681, which is fixedly installed on the top of the top cover 64. A second motor 682 is fixedly installed on the top of the concave frame 681. The output end of the second motor 682 passes through the concave frame 681 and is fixedly connected to a synchronous wheel 683. One side of the top of the top cover 64 is also rotatably connected to a synchronous wheel 683. The two synchronous wheels 683 are connected by a synchronous belt 684. The bottom of the synchronous wheel 683 in the middle is connected to the cleaning mechanism 66. The bottom of the synchronous wheel 683 on the displacement side is connected to the water guide mechanism 67. The cleaning mechanism 66 includes a rotating shaft 661, which is rotatably connected to the middle of the bottom of the top cover 64. A screw dragon 662 and a cleaning arm 663 are fixedly installed on the outer surface of the rotating shaft 661. The cleaning arm 66 3 are arranged at equal intervals on the outside of the auger 662, and the outside of the cleaning arm 663 is fixedly connected with a brush plate 664. The outside of the brush plate 664 is fitted and connected with the inner wall of the activated carbon adsorption inner cylinder 6561. The water guide mechanism 67 includes an annular groove 671 and a gear 672. The annular groove 671 is opened at the bottom of the top cover 64 and is located on the outside of the annular mounting groove 653. The gear 672 is rotatably connected to one side of the bottom of the top cover 64. The top of the gear 672 is connected to the bottom of the synchronous wheel 683 located on one side. The inside of the annular groove 671 is rotatably connected with a gear ring 673, and the gear ring 673 is meshed with the gear 672. The bottom of the gear ring 673 is fixedly installed with a mounting ring 674, and the bottom of the mounting ring 674 is fixedly installed with a spiral driving paddle 675. The spiral driving paddle 675 is set to rotate on the outside of the cylindrical ion exchange resin filter element 6562, the outer end of the water supply hose 654 is fixedly installed with a threaded joint 8, and the outer end of the drain pipe 7 is fixedly installed with a mounting flange 9. When the ultrapure water preparation equipment is running, the driving mechanism 68 is started, and the second motor 682 fixed on the concave frame 681 on the top of the top cover 64 starts to work. The output end of the second motor 682 drives the synchronous wheel 683 to rotate, and through the synchronous belt 684, drives another synchronous wheel 683 connected to the top side of the top cover 64 to rotate synchronously. The two synchronous wheels 683 are respectively connected to the cleaning mechanism 66 and the water guide mechanism 67, so as to drive them to work together. For the cleaning mechanism 66, the middle synchronous wheel 683 drives the rotating shaft 661 connected to the bottom to rotate. The auger 662 and cleaning arm 663 fixed on 661 rotate accordingly, and the cleaning arm 663 is evenly spaced outside the auger 662, and the brush plate 664 connected to the outside fits the inner wall of the activated carbon adsorption inner cylinder 6561. The brush plate 664 brushes and cleans the inner wall of the activated carbon adsorption inner cylinder 6561 during rotation to prevent impurities from accumulating and affecting the adsorption effect. At the same time, the rotation of the auger 662 causes the water in the tank body 61 to surge, thereby increasing the flow rate and pressure of the water between the activated carbon adsorption inner cylinder 6561 and the cylindrical ion exchange resin filter element 6562, thereby enhancing the purification effect. In terms of the water guide mechanism 67, a synchronous wheel 683 on one side drives the gear 672 connected to the bottom to rotate, and the gear 672 meshes with the toothed ring 673 in the annular groove 671 at the bottom of the top cover 64.The gear ring 673 rotates in the annular groove 671, and the mounting ring 674 at the bottom of the gear ring 673 drives the spiral driving paddle 675 fixed at the bottom thereof to rotate. The spiral driving paddle 675 is sleeved on the outside of the cylindrical ion exchange resin filter element 6562, and drives the infiltrated water to flow downward during rotation, guiding the filtered water to flow through the drainage groove 652 of the bottom plate 651 to the drainage bucket 63, and then enter the subsequent links of the ultrapure water preparation device 3. In addition, the threaded joint 8 at the outer end of the water supply hose 654 is used to connect to an external water source, and the mounting flange 9 at the outer end of the drainage bucket 63 is convenient for stable connection with other components.

[0045] A process for preparing ultrapure water with a biological pretreatment filter comprises the following steps:

[0046] Step 1: Connect the water supply pipe, connect the threaded connector 8 on the outside of the water supply hose 654 to the external water supply pipe;

[0047] Step 2: Preliminary filtration, water flows through the water supply hose 654, and is injected into the filter cartridge 656 at the bottom of the top cover 64 through the water guide hole 655, first entering the activated carbon adsorption cartridge, and then entering the cylindrical ion exchange resin filter element 6562. After double filtration, the water passes through the filter cartridge 656 and enters the inside and outside of the tank body 61;

[0048] Step 3: Purification treatment, start the second motor 682, the output shaft drives the synchronous wheel 683 to rotate, and drives another synchronous wheel 683 to rotate through the synchronous belt 684, and the middle synchronous wheel 683 drives the rotating shaft 661 to rotate, driving the auger 662 and the cleaning arm 663 to do circular motion in the activated carbon adsorption cylinder;

[0049] Step 4: Guide the filtered water, the outer synchronous wheel 683 drives the gear 672 to rotate, meshes with the gear ring 673 to drive the gear ring 673 to rotate, drives the mounting plate and the bottom spiral driving paddle 675 to rotate, guides the infiltrated water downward to the drainage groove 652 and the drainage bucket 63, and enters the ultrapure water preparation device 3 for subsequent treatment;

[0050] Step 5: Collect and drain water. The water inside and outside the tank body 61 is collected through the drainage grooves 652 arranged at equal intervals on the outside of the bottom plate 651, flows into the drainage bucket 63, and then is introduced into the subsequent processing unit of the ultrapure water preparation device 3 by the drainage bucket 63;

[0051] Step 6: Clean, maintain or replace the filter cartridge 656. When maintenance is required, start the first motor 622. Its output shaft drives the screw 623 to rotate in the guide rail 621, driving the slider 624 to slide, driving the support arm 625, the top cover 64 and related mechanisms to rise, and the annular mounting groove 653 is detached from the top of the filter cartridge 656. Pull out the filter cartridge 656 to complete the disassembly.

[0052] The working principle of the present invention is as follows: during the actual operation, the ultrapure water preparation device 3 involved in the present invention is stably connected to the external water supply pipeline through the threaded joint 8 on the outside of the water supply hose 654 to ensure the continuity and stability of the water supply. After the connection is completed, the water flows through the water supply hose 654 and is accurately guided by the water guide hole 655 to be smoothly injected into the filter cartridge 656 at the bottom of the top cover 64. The water flow starts from the inside of the filter cartridge 656 and first enters the activated carbon adsorption cartridge. The strong adsorption of the activated carbon is used to efficiently adsorb and filter impurities such as organic matter, residual chlorine and some heavy metal ions in the water. The water quality is initially purified. Subsequently, the water after preliminary filtration enters the cylindrical ion exchange resin filter element 6562. Through the principle of ion exchange, various ions in the water are further removed, the resistivity of the water is reduced, and the purity of the water quality is improved. The water after double filtration passes through the filter cylinder 656 and enters the inside and outside of the tank body 61. At this time, the drainage grooves 652 opened at equal intervals on the outside of the chassis 651 play a key role. The water is collected through the drainage grooves 652 and then flows into the drainage bucket 63. Then, the water is accurately introduced into the subsequent processing unit of the ultrapure water preparation device 3 through the drainage bucket 63 for deep purification.

[0053] During the long-term operation of the ultrapure water preparation device 3, the filter cartridge 656, as a core filtering component, will inevitably experience the problem of impurity accumulation and reduced filtering performance as the use time increases. In order to solve this problem, the device is designed with a unique filter cartridge 656 quick disassembly and assembly structure. When the filter cartridge 656 needs to be cleaned, maintained or replaced, it is only necessary to start the first motor 622. When the first motor 622 is running, its output shaft drives the screw rod 623 to rotate precisely inside the guide rail 621. The rotation of the screw rod 623 converts the linear motion into rotational motion, thereby driving the slider 624 to slide smoothly inside the guide rail 621. The sliding of the slider 624 drives the support arm 625 to move upward, and the upward movement of the support arm 625 further drives the top cover 64 and the cleaning mechanism 66 and the water guide mechanism 67 connected to the bottom thereof to rise synchronously. As the top cover 64 rises, the annular mounting groove 653 gradually separates from the top of the filter cartridge 656. When it rises to a certain height, the filter cartridge 656 can be easily drawn out from the inside of the tank body 61. This innovative design abandons the traditional threaded connection method, greatly simplifies the disassembly and assembly process of the filter cartridge 656, reduces maintenance time and labor costs, improves the maintainability of the equipment, and ensures that the ultrapure water preparation device 3 can operate efficiently and stably.

[0054] The ultrapure water preparation device 3 of the present invention realizes high efficiency and stability of water purification treatment through the coordinated cooperation of the driving mechanism 68, the cleaning mechanism 66 and the water guiding mechanism 67. During the operation of the device, the second motor 682 is started, and the output shaft of the second motor 682 drives the synchronous wheel 683 to rotate at high speed. The rotation of the synchronous wheel 683 transmits power through the synchronous belt 684, driving the other synchronous wheel 683 to rotate synchronously, ensuring that the speed and direction of the two synchronous wheels 683 are consistent. During the rotation process, the synchronous wheel 683 located in the middle position is connected to the rotating shaft 661 through a coupling, thereby driving the rotating shaft 661 to rotate. The rotation of the rotating shaft 661 drives the auger 662 and the cleaning arm 663 to rotate. The activated carbon adsorption cylinder makes circular motion inside. During the rotation process, the cleaning arm 663 drives the brush plate 664 to continuously and closely fit the inner wall of the activated carbon adsorption cylinder for brushing and cleaning, effectively removing impurities and dirt attached to the surface of the activated carbon, preventing the activated carbon adsorption sites from being blocked, and maintaining the adsorption performance of the activated carbon. At the same time, the rotating shaft 661 drives the auger 662 to rotate. The rotation of the auger 662 causes the water in the tank body 61 to surge strongly, increasing the flow rate and pressure of the water inside the activated carbon adsorption cylinder, enabling the water to more efficiently pass through the activated carbon adsorption inner cylinder 6561 and the cylindrical ion exchange resin filter element 6562, achieving more thorough purification and adsorption, and significantly improving the effect of biological purification treatment;

[0055] During the purification process, the cleaning arm 663 drives the brush plate 664 to continuously rotate, which not only plays a role in cleaning and preventing blockage, but also avoids the problem of reduced filtration efficiency caused by impurities covering the inner wall of the filter cartridge 656 for a long time. It can also make the water and the filter material fully contact through mechanical disturbance, thereby further improving the purification and adsorption efficiency. This design effectively reduces the blockage frequency of the filter cartridge 656, reduces the number of replacement times of the filter cartridge 656, saves a lot of filter material costs, and improves the overall efficiency of ultrapure water treatment. In addition, when the second motor 682 drives the synchronous wheel 683 to cooperate with the synchronous belt 684 for linkage, the outer synchronous wheel 683 drives the gear 672 to rotate synchronously during the rotation process, and the rotation of the gear 672 The gear ring 673 is meshed with the gear ring 673 to drive the gear ring 673 to perform circular motion. The rotation of the gear ring 673 drives the mounting plate connected to its bottom to rotate synchronously. The rotation of the mounting plate further drives the spiral driving paddle 675 at its bottom to rotate at high speed. The rotation of the spiral driving paddle 675 causes the infiltrated water to generate a downward thrust, quickly directing the filtered water to the drain trough 652 and the drain bucket 63, and then smoothly entering the subsequent processing unit of the ultrapure water preparation device 3. This coordinated driving design enables the device to purify and transport the water more efficiently and smoothly during the ultrapure water preparation process, further improving the efficiency of ultrapure water preparation, and providing a strong guarantee for meeting the high demand for ultrapure water in industrial production and scientific research experiments.

Claims

1. An ultrapure water preparation device with a biological pretreatment filter, characterized in that: The invention comprises a base (1), a frame (2) is fixedly mounted on the top of the base (1), an ultrapure water preparation device (3) is mounted inside the frame (2), a biological purifier (6) is mounted on one side of the ultrapure water preparation device (3), the biological purifier (6) and the ultrapure water preparation device (3) are connected, a substrate (5) is fixedly mounted on the front of the ultrapure water preparation device (3), a controller (4) is fixedly mounted on the front of the substrate (5), and a drain pipe (7) is fixedly mounted on the output end of the ultrapure water preparation device (3); The biological purifier (6) comprises a tank body (61) and an adjusting mechanism (62), wherein the tank body (61) is fixedly mounted in the frame body and is located on one side of the ultrapure water preparation device (3), a drainage bucket (63) is fixedly mounted on the bottom of the tank body (61), and the bottom of the drainage bucket (63) is connected to the ultrapure water preparation device (3), and the top of the tank body (61) is covered with a top cover (64), and the adjusting mechanism (62) is fixedly mounted on the back side of the frame body close to the tank body (61), and the adjusting mechanism (62) is fixedly mounted on the back side of the frame body close to the tank body (61). The top of the mechanism (62) is connected to the rear side of the top cover (64); a biological filter core (65) is movably installed inside the tank body (61); a cleaning mechanism (66) is movably installed inside the biological filter core (65); a water guide mechanism (67) is movably installed outside the biological filter core (65); a driving mechanism (68) is fixedly installed on the top of the top cover (64); and the bottom output end of the driving mechanism (68) is respectively connected to the water guide mechanism (67) and the cleaning mechanism (66).

2. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 1, characterized in that: The adjustment mechanism (62) comprises a guide rail (621), wherein the guide rail (621) is fixedly mounted on a side of the back side of the frame (2) close to the tank body (61), the bottom of the guide rail (621) is fixedly connected to a first motor (622), the output end of the first motor (622) passes through the guide rail (621) and is fixedly connected to a lead screw (623), the outer surface of the lead screw (623) is threadedly connected to a slider (624), the slider (624) is slidably connected to the inside of the guide rail (621), a support arm (625) is fixedly mounted on the rear side of the slider (624), and the top of the support arm (625) is fixedly connected to the top cover (64).

3. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 1, characterized in that: The biological filter element (65) includes a chassis (651), and the chassis (651) is fixedly installed on the bottom of the tank body (61). Drainage grooves (652) are evenly spaced at the outer edge of the chassis (651), and the bottom of the drainage grooves (652) is connected to the drainage bucket (63). The top of the chassis (651) is provided with an annular mounting groove (653), and the bottom of the top cover (64) is also provided with an annular mounting groove (653). A filter cartridge (656) is inserted between the inner sides of the two annular mounting grooves (653), and the top and bottom of the filter cartridge (656) are both sealed by a sealing gasket and the annular mounting groove (653).

4. The ultrapure water preparation device with a biological pretreatment filter according to claim 3, characterized in that: The biological filter element (65) further comprises a water supply hose (654) and water guide holes (655), wherein the water supply hose (654) is fixedly mounted on one side of the top of the top cover (64), and the water guide holes (655) are arranged in a ring shape at equal intervals and are opened at the bottom of the top cover (64), and the water guide holes (655) are all in communication with the interior of the filter cartridge (656).

5. The ultrapure water preparation device with a biological pretreatment filter according to claim 4, characterized in that: The filter cartridge (656) is composed of an activated carbon adsorption inner cartridge (6561) and a cylindrical ion exchange resin filter element (6562), and the activated carbon adsorption inner cartridge (6561) is installed on the inner side of the cylindrical ion exchange resin filter element (6562).

6. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 5, characterized in that: The driving mechanism (68) comprises a concave frame (681), wherein the concave frame (681) is fixedly mounted on the top of the top cover (64), a second motor (682) is fixedly mounted on the top of the concave frame (681), an output end of the second motor (682) passes through the concave frame (681) and is fixedly connected to a synchronous wheel (683), one side of the top of the top cover (64) is also rotatably connected to a synchronous wheel (683), the two synchronous wheels (683) are connected by a synchronous belt (684), the bottom of the synchronous wheel (683) located in the middle is connected to the cleaning mechanism (66), and the bottom of the synchronous wheel (683) on the displacement side is connected to the water guide mechanism (67).

7. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 6, characterized in that: The cleaning mechanism (66) comprises a rotating shaft (661), wherein the rotating shaft (661) is rotatably connected to the middle of the bottom of the top cover (64), an auger (662) and a cleaning arm (663) are fixedly mounted on the outer surface of the rotating shaft (661), the cleaning arms (663) are arranged at equal intervals on the outer side of the auger (662), the outer sides of the cleaning arms (663) are fixedly connected to a brush plate (664), and the outer side of the brush plate (664) is fitted and connected to the inner wall of the activated carbon adsorption inner cylinder (6561).

8. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 6, characterized in that: The water guide mechanism (67) comprises an annular groove (671) and a gear (672). The annular groove (671) is opened at the bottom of the top cover (64) and is located on the outside of the annular mounting groove (653). The gear (672) is rotatably connected to one side of the bottom of the top cover (64). The top of the gear (672) is connected to the bottom of a synchronous wheel (683) located on one side. A gear ring (673) is rotatably connected inside the annular groove (671). The gear ring (673) and the gear (672) are meshingly connected. A mounting ring (674) is fixedly installed at the bottom of the gear ring (673). A spiral driving paddle (675) is fixedly installed at the bottom of the mounting ring (674). The spiral driving paddle (675) is sleeved and rotatably mounted on the outside of a cylindrical ion exchange resin filter element (6562).

9. The ultrapure water preparation equipment with a biological pretreatment filter according to claim 4, characterized in that: A threaded joint (8) is fixedly mounted on the outer end of the water supply hose (654), and a mounting flange (9) is fixedly mounted on the outer end of the drainage pipe (7).

10. A process for preparing ultrapure water with a biological pretreatment filter, using an ultrapure water preparation device with a biological pretreatment filter according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Connect the water supply pipeline, connect the threaded joint (8) on the outside of the water supply hose (654) to the external water supply pipeline; Step 2: Preliminary filtration, water flows through the water supply hose (654), and is injected into the filter cartridge (656) at the bottom of the top cover (64) through the water guide hole (655), first enters the activated carbon adsorption cartridge, and then enters the cylindrical ion exchange resin filter element (6562). After double filtration, the water passes through the filter cartridge (656) and enters the inside and outside of the tank body (61); Step 3: Purification treatment, start the second motor (682), the output shaft drives the synchronous wheel (683) to rotate, and the synchronous belt (684) drives another synchronous wheel (683) to rotate, and the middle synchronous wheel (683) drives the rotating shaft (661) to rotate, driving the auger (662) and the cleaning arm (663) to make a circular motion in the activated carbon adsorption cylinder; Step 4: The filtered water is guided, and the outer synchronous wheel (683) drives the gear (672) to rotate, meshes with the gear ring (673) to drive the gear ring (673) to rotate, and drives the mounting plate and the bottom spiral driving paddle (675) to rotate, and guides the infiltrated water downward to the drainage groove (652) and the drainage bucket (63), and enters the ultrapure water preparation device (3) for subsequent treatment; Step 5: Collecting and draining water. The water inside and outside the tank body (61) is collected through drainage grooves (652) arranged at equal intervals on the outside of the bottom plate (651), flows into the drainage bucket (63), and then is introduced into the subsequent processing unit of the ultrapure water preparation device (3) through the drainage bucket (63); Step 6: Clean, maintain or replace the filter cartridge (656). When maintenance is required, start the first motor (622), and its output shaft drives the screw rod (623) to rotate in the guide rail (621), driving the slider (624) to slide, driving the support arm (625), the top cover (64) and related mechanisms to rise, and the annular mounting groove (653) is detached from the top of the filter cartridge (656). The filter cartridge (656) can be pulled out to complete the disassembly.

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