A clean room water filtering device with anti-blocking flow channel structure

Abstract

This invention discloses a cleanroom water filtration device with an anti-clogging flow channel structure, applicable to the field of cleanroom water treatment. The invention filters raw water through a first filter cylinder, reducing impurity accumulation on the filter media surface, ensuring filtration efficiency, and extending maintenance cycles. Raw water flows through the inlet pipe, impacting the blades along the tangential direction, causing them to rotate. This rotation drives the first filter cylinder to rotate, dislodging impurities and preventing clogging, thus ensuring filtration efficiency and achieving a good anti-clogging effect. This improves practicality and ease of use. Water enters the multi-media tank through the inlet pipe along the tangential direction, generating a vortex. This vortex causes impurities such as sand and gravel to settle along the inner wall of the guide cylinder to the bottom of the annular baffle. The rotating push rod pushes the impurities to the collection hood, where a water pump draws them into the collection cylinder for collection. This process effectively collects impurities, reduces maintenance, improves practicality, and enhances ease of use.

Description

Technical Field

[0001] This invention relates to the field of cleanroom water treatment, and in particular to a cleanroom water filtration device with an anti-clogging flow channel structure. Background Technology

[0002] Cleanrooms are critical environments in industries such as semiconductors, biopharmaceuticals, and precision electronics, requiring extremely high purity process water. Even minute particles, microorganisms, or chemical contaminants can lead to decreased product yield or even production interruptions. Therefore, sophisticated filtration devices are widely deployed in cleanroom water circulation systems to intercept minute impurities in the water. Currently, most water filtration devices used in cleanrooms are based on multi-stage filtration structures, typically including pretreatment filtration, precision filtration, ultrafiltration, reverse osmosis (RO), and electrodeionization (EDI). A search of Chinese patents revealed publication number CN107434324A: a filtration device for ultrapure water filtration, comprising a tank, a base, and a pump base. The base is located beneath the tank, and a storage battery is housed within it. A water outlet pipe is located in the center of the tank's bottom surface. The advantages are: this device is equipped with a solar thin-film panel, which converts solar energy into electrical energy and stores it in the battery for the device's use, employing a self-powered, environmentally friendly approach. Simultaneously, a feedback control loop consisting of a water quality detector, a control unit, and a suction pump allows the water quality detector to acquire real-time water quality information from the storage tank. When the real-time water quality information meets a predetermined value, the control unit opens the solenoid valve, allowing water from the storage tank to be output through the water outlet pipe. When the real-time water quality information does not meet the predetermined value, the control unit activates the suction pump to draw water from the storage tank to the flocculation layer for another round of filtration, continuing until the real-time water quality information meets the predetermined value, thus stopping the process. This makes it convenient to use.

[0003] Existing filtration devices have poor anti-clogging effects. Generally, raw water enters the multi-media filter directly through the inlet pipe. The raw water is filtered through anthracite and quartz sand filter media. However, the raw water contains large impurities, which remain on the surface of the filter media, affecting the filtration efficiency. Furthermore, the accumulation of impurities can cause the filter media to clump together, further reducing the filtration effect. Frequent cleaning of the filter media is required, increasing maintenance. Cleaning requires shutdown, reducing practicality and making it inconvenient to use. To solve the above problems, we propose a cleanroom water filtration device with an anti-clogging flow channel structure. Summary of the Invention

[0004] The purpose of this invention is to provide a cleanroom water filtration device with an anti-clogging flow channel structure, which has the advantage of good anti-clogging effect.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a cleanroom water filtration device with an anti-clogging flow channel structure, comprising a multi-media tank, an inlet pipe and an outlet pipe connected to the surface of the multi-media tank, a drive mechanism and a guide mechanism inside the multi-media tank, a collection mechanism on the surface of the multi-media tank, a filtration mechanism inside the multi-media tank, a flow equalization mechanism at the bottom of the drive mechanism, and a maintenance mechanism on the surface of the multi-media tank.

[0006] The present invention is further configured such that: one end of the inlet pipe is connected to a raw water tank via a water pump, one end of the outlet pipe is connected to an activated carbon filter via a water pump, the surface of the activated carbon filter is connected to a softener via a water pump, and the surface of the softener is connected to a security filter via a water pump.

[0007] Using the above technical solution, raw water enters the multi-media tank from the raw water tank through the inlet pipe. After being filtered by anthracite and quartz sand to remove large impurities, it then enters the activated carbon filter. Utilizing the strong adsorption capacity of activated carbon, residual chlorine, some organic matter, and odors in the water are removed, protecting the subsequent RO membrane from oxidation. The water then enters the softener, where the sodium-type cation exchange resin removes calcium and magnesium ions through ion exchange, preventing scaling on the RO membrane surface. Finally, it enters the security filter, where the 5μm filter element intercepts residual microparticles, ensuring that the incoming water quality meets the requirements of the RO membrane.

[0008] The present invention is further configured such that: a high-pressure pump is connected to the surface of the security filter, the output end of the high-pressure pump is connected to a reverse osmosis module, the output end of the reverse osmosis module is connected to an intermediate water tank via a water pump, and an electro-deionization device is connected to the surface of the intermediate water tank.

[0009] Using the above technical solution, after the water is treated by the security filter, it is pressurized by the high-pressure pump and then enters the reverse osmosis module, where more than 99% of the impurities such as salt, ions, organic matter, bacteria, and viruses in the water are removed. Then it enters the intermediate water tank and enters the electro-deionization device for deep desalination and ultrapurification.

[0010] The present invention is further configured such that: the surface of the electro-deionization device is connected to a polishing mixed bed via a water pump; the surface of the polishing mixed bed is connected to an ultraviolet sterilizer via a connecting pipe; the surface of the ultraviolet sterilizer is connected to an ultrafiltration device via a water pump; the surface of the ultrafiltration device is connected to a terminal precision filter via a water pump; and the surface of the terminal precision filter is connected to a pure water storage tank via a water pump.

[0011] Using the above technical solution, water enters the polishing mixed bed from the electro-deionization device to further capture and remove any trace ions that may remain in the water, ensuring that the final water quality meets the highest standards. Then, it enters the ultraviolet sterilizer, which uses ultraviolet light of a specific wavelength to kill any microorganisms that may be present and decompose organic molecules. Next, it enters the ultrafiltration device, which uses a membrane with a pore size of approximately 0.01 to 0.05 micrometers to remove bacteria, endotoxins, and extremely small particulate matter. Then, it enters the terminal precision filter, which uses a microporous filter membrane of 0.1 μm or 0.2 μm to ensure the purity of the output water. Finally, it enters the pure water storage tank for storage and use.

[0012] The present invention is further configured such that: the driving mechanism includes a fixed frame, the fixed frame is bolted to the inner wall of the multi-media tank, the inner wall of the multi-media tank is bolted to a partition, a first filter screen cylinder is rotatably sleeved between the inner wall of the partition and the fixed frame, and the first filter screen cylinder is made of stainless steel, a rotating block is fixedly sleeved on the surface of the first filter screen cylinder, and a plurality of blades are bolted to the surface of the rotating block.

[0013] By adopting the above technical solution, and by setting a drive mechanism, the raw water enters the multi-media tank from the inlet pipe through the water pump, and impacts the blades along the tangential direction of the blades to rotate. The rotation of the blades drives the first filter screen cylinder to rotate. The rotation of the first filter screen cylinder throws out the impurities on the surface of the first filter screen cylinder, preventing impurities from adhering to the surface of the filter screen cylinder and preventing the filter screen cylinder from clogging.

[0014] The present invention is further configured such that: the impurity guiding mechanism includes a guide tube, the guide tube is bolted to the inner wall of the multi-media tank, and the guide tube is conical in shape; an annular baffle is bolted to the bottom of the guide tube, and the inner diameter of the annular baffle is larger than the outer diameter of the first filter screen cylinder; the annular baffle is bolted to the inner wall of the multi-media tank; and eight push rods are bolted to the surface of the first filter screen cylinder, the eight push rods are evenly distributed on the surface of the first filter screen cylinder, the push rods are curved, the cross-section of the push rods is J-shaped, and the push rods are located between the annular baffle and the partition.

[0015] Using the above technical solution, by setting up a guide mechanism, water enters the multi-media tank through the inlet pipe. Since the inlet steel pipe is set along the tangential direction of the multi-media tank, the water will flow downward along the inner wall of the multi-media tank after entering the tank, thus forming a vortex. The vortex will cause the impurities in the water to move downward and enter the bottom of the annular baffle through the gap between the annular baffle and the first filter screen. The rotation of the first filter screen drives the push rod to rotate. Since the pushing side of the push rod is curved, the rotation of the push rod continuously pushes the impurities outward. Since the cross-section of the push rod is J-shaped, the impurities will not float around when the push rod pushes them.

[0016] The present invention is further configured such that: the collection mechanism includes a collection cover, the collection cover is in communication with the surface of the multi-media tank, and the collection cover is conical; a water pump is connected to the surface of the collection cover; a first valve is connected to the output end of the water pump; a collection cylinder is connected to the other end of the first valve; a conical cylinder is threadedly connected to the bottom of the collection cylinder; a first sealing ring is provided between the conical cylinder and the collection cylinder; a second valve is connected to the bottom of the conical cylinder; a second filter screen is threadedly connected to the inner wall of the collection cylinder; a second sealing gasket is provided between the second filter screen and the inner wall of the collection cylinder; a third valve is connected to the top of the collection cylinder; a connecting pipe is connected to the other end of the third valve, and the other end of the connecting pipe is in communication with the surface of the multi-media tank; a support plate is bolted to the surface of the multi-media tank; the water pump is bolted to the support plate; and the collection cylinder is fixedly sleeved with the support plate.

[0017] Using the above technical solution, by setting up a collection mechanism, when impurities pass through the collection hood, the water pump draws the impurities from the multi-media tank into the collection hood, and then into the collection cylinder. The second filter screen in the collection cylinder filters the water, leaving the impurities in the collection cylinder. The water then passes through the second filter screen and enters the connecting pipe, flowing back into the multi-media tank from the connecting pipe. When there are many impurities in the collection cylinder, the water pump is turned off, the first and third valves are closed, and the second valve is opened to discharge the impurities, thus facilitating cleaning and maintenance. After cleaning, the second valve is closed, the first and third valves are opened, and finally the water pump is turned on.

[0018] The present invention is further configured such that: the filtration mechanism includes two partition plates, the partition plates are bolted to the inner wall of the multi-media tank, the surface of the partition plates is provided with through holes, the space between the two partition plates is filled with quartz sand, anthracite is provided on the top of the top partition plate, and a drain valve is connected to the bottom of the multi-media tank.

[0019] By adopting the above technical solution, a filtration mechanism is set up to filter water using anthracite and quartz sand, and a drain valve facilitates sewage discharge.

[0020] The invention is further configured such that: the flow equalization mechanism includes a fixed pipe, the inner wall of the fixed pipe is rotatably sleeved with the surface of the first filter screen cylinder, and the fixed pipe is bolted to the bottom of the partition plate; the surface of the fixed pipe is connected to a flow divider, and the number of flow dividers is six, and the six flow dividers are evenly distributed on the surface of the fixed pipe; the bottom of the flow divider is provided with two drain holes, and the included angle between the two drain holes is 30°; the diameter of the drain holes gradually increases from the inside to the outside; the inner wall of the multi-media tank is bolted to a flow equalization plate, and the surface of the flow equalization plate is integrally formed with a circular protrusion, and the surface of the circular protrusion is provided with a drain hole.

[0021] Using the above technical solution, by setting up a flow equalization mechanism, the filtered raw water enters the interior of the filter screen cylinder, enters the distribution pipe through the fixed pipe, and is discharged from the outlet hole. Since the diameter of the outlet hole gradually increases from the inside to the outside, the water output is uniform. Furthermore, since the included angle between the two outlet holes is 30°, the water output area is increased, further improving the uniformity of the output. The water falls from the outlet hole onto the flow equalization plate. Since the circular protrusion on the flow equalization plate is higher than the bottom of the flow equalization plate, the water will be dispersed on the flow equalization plate. When the water level on the flow equalization plate is higher than the circular protrusion, the water is discharged downward through the drain hole on the circular protrusion, further improving the flow equalization effect and ensuring the utilization rate of the filter media. After being filtered by the anthracite and quartz sand filter media, the water is discharged through the outlet pipe and enters the next treatment stage.

[0022] The invention is further configured such that: the maintenance mechanism includes two circular windows, which are located at the top and bottom of the flow equalization plate, respectively; a cover plate is provided on the surface of the circular windows; multiple fixing bolts are threadedly connected to the inner wall of the circular windows; and a third sealing gasket is provided between the cover plate and the inner wall of the circular windows.

[0023] By adopting the above technical solution, a maintenance mechanism is set up, the fixing bolts are loosened, the cover is opened, and the interior of the multi-media tank can be maintained through the circular window. The third sealing gasket seals the cover to prevent water leakage.

[0024] In summary, the present invention has the following beneficial effects: 1. This invention filters raw water through a first filter cylinder, greatly reducing the accumulation of impurities on the filter media surface, ensuring filtration efficiency, and extending the maintenance cycle. Raw water flows through the inlet pipe and impacts the blades along the tangential direction of the blades, causing the blades to rotate. The rotation of the blades drives the first filter cylinder to rotate, which throws off impurities and prevents the first filter cylinder from clogging, thus ensuring filtration efficiency. This achieves a good anti-clogging effect, improves practicality, and makes it convenient to use. 2. This invention generates a vortex by having water enter the multi-medium tank tangentially through the inlet pipe. The vortex causes impurities such as sand and gravel to settle along the inner wall of the guide tube to the bottom of the annular baffle. The rotating push rod pushes the impurities to the collection hood, and the water pump sucks the impurities into the collection tube for collection. This method can collect impurities, reduce maintenance, improve practicality, and make it convenient to use. Attached Figure Description

[0025] Figure 1 This is a three-dimensional view of the structure of the present invention; Figure 2 This is a partial three-dimensional structural view of the present invention; Figure 3 This is a partial three-dimensional cross-sectional view of the present invention; Figure 4 This is a partial three-dimensional cross-sectional view of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the structure of the collection mechanism of this invention; Figure 6 This is a partial three-dimensional view of the flow equalization mechanism of the present invention; Figure 7 This is a three-dimensional view of the flow equalization plate structure of the present invention; Figure 8 This is a partial three-dimensional structural view of the present invention; Figure 9 This is the present invention. Figure 4 Enlarged view of the structure at point A in the middle; Figure 10 This is a schematic diagram of the water treatment process of the present invention.

[0026] Figure label: 1. Multi-media tank; 2. Inlet pipe; 3. Outlet pipe; 4. Drive mechanism; 41. Fixing frame; 42. Partition plate; 43. First filter screen cylinder; 44. Rotating block; 45. Blade; 5. Impurity guiding mechanism; 51. Flow guide tube; 52. Annular baffle; 53. Push rod; 6. Collection mechanism; 61. Collection hood; 62. Water pump; 63. First valve; 64. Collection cylinder; 65. Conical cylinder; 66. First sealing ring; 67. Second valve; 68. Second filter screen cylinder; 69. Second sealing gasket; 610. Third valve; 611. Connecting pipe; 612. Support plate 7. Filtration mechanism; 71. Separator plate; 72. Through hole; 73. Quartz sand; 74. Anthracite; 75. Drain valve; 8. Flow equalization mechanism; 81. Fixed pipe; 82. Diverter pipe; 83. Water outlet; 84. Flow equalization plate; 85. Circular protrusion; 86. Drain hole; 9. Maintenance mechanism; 91. Circular window; 92. Cover plate; 93. Fixing bolts; 94. Third sealing gasket; 10. Raw water tank; 11. Activated carbon filter; 12. Softener; 13. Security filter; 14. High-pressure pump; 15. Reverse osmosis module; 16. Intermediate water tank; 17. Electrodeionization unit; 18. Polishing mixed bed; 19. Ultraviolet sterilizer; 20. Ultrafiltration unit; 21. Terminal precision filter; 22. Pure water storage tank. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1: refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A cleanroom water filtration device with an anti-clogging flow channel structure includes a multi-media tank 1, an inlet pipe 2 and an outlet pipe 3 connected to the surface of the multi-media tank 1, a drive mechanism 4 and a debris guiding mechanism 5 inside the multi-media tank 1, a collection mechanism 6 on the surface of the multi-media tank 1, a filtration mechanism inside the multi-media tank 1, a flow equalization mechanism 8 at the bottom of the drive mechanism 4, and a maintenance mechanism 9 on the surface of the multi-media tank 1.

[0029] refer to Figure 1 One end of the inlet pipe 2 is connected to the raw water tank 10 via the water pump 62, and one end of the outlet pipe 3 is connected to the activated carbon filter 11 via the water pump 62. The surface of the activated carbon filter 11 is connected to the softener 12 via the water pump 62, and the surface of the softener 12 is connected to the security filter 13 via the water pump 62. The raw water enters the multi-media tank 1 from the raw water tank 10 through the inlet pipe 2. After being filtered by anthracite 74 and quartz sand 73, large impurities are filtered out. Then it enters the activated carbon filter 11. Utilizing the strong adsorption capacity of activated carbon, residual chlorine, some organic matter, and odors in the water are removed, protecting the subsequent RO membrane from oxidation. Then it enters the softener 12. The sodium-type cation exchange resin inside the softener 12 removes calcium and magnesium ions in the water through ion exchange, preventing them from scaling on the RO membrane surface. Then it enters the security filter 13. The 5μm filter element in the security filter 13 can intercept residual small particles, ensuring that the quality of the incoming water meets the requirements of the RO membrane.

[0030] refer to Figure 1 The surface of the security filter 13 is connected to a high-pressure pump 14. The output end of the high-pressure pump 14 is connected to a reverse osmosis module 15. The output end of the reverse osmosis module 15 is connected to an intermediate water tank 16 via a water pump 62. The surface of the intermediate water tank 16 is connected to an electro-deionization device 17. After the water is treated by the security filter 13, it is pressurized by the high-pressure pump 14 and then enters the reverse osmosis module 15, where more than 99% of the salt, ions, organic matter, bacteria, viruses and other impurities in the water are removed. Then the water enters the intermediate water tank 16 and then enters the electro-deionization device 17 for deep desalination and ultrapurification.

[0031] refer to Figure 1The surface of the electro-deionization device 17 is connected to a polishing mixed bed 18 via a water pump 62. The surface of the polishing mixed bed 18 is connected to an ultraviolet sterilizer 19 via a connecting pipe 611. The surface of the ultraviolet sterilizer 19 is connected to an ultrafiltration device 20 via a water pump 62. The surface of the ultrafiltration device 20 is connected to a terminal precision filter 21 via a water pump 62. The surface of the terminal precision filter 21 is connected to a pure water storage tank 22 via a water pump 62. Water enters the polishing mixed bed 18 from the electro-deionization device 17 to further capture and remove any trace ions that may remain in the water, ensuring that the final water quality meets the highest standards. Then, it enters the ultraviolet sterilizer 19, which uses ultraviolet light of a specific wavelength to kill any microorganisms that may be present and decompose organic molecules. Then, it enters the ultrafiltration device 20, which uses a membrane with a pore size of approximately 0.01 to 0.05 micrometers to remove bacteria, endotoxins, and extremely small particulate matter. Then, it enters the terminal precision filter 21, which uses a microporous filter membrane of 0.1 μm or 0.2 μm to ensure the purity of the output water. Finally, it enters the pure water storage tank 22 for storage and use.

[0032] refer to Figure 2 The drive mechanism 4 includes a fixed frame 41, which is bolted to the inner wall of the multi-media tank 1. A partition 42 is bolted to the inner wall of the multi-media tank 1. A first filter screen cylinder 43 is rotatably sleeved between the inner wall of the partition 42 and the fixed frame 41. The first filter screen cylinder 43 is made of stainless steel. A rotating block 44 is fixedly sleeved on the surface of the first filter screen cylinder 43. Several blades 45 are bolted to the surface of the rotating block 44. By setting the drive mechanism 4, raw water enters the multi-media tank 1 from the inlet pipe 2 through the water pump 62 and impacts the blades 45 along the tangential direction of the blades 45 to rotate. The rotation of the blades 45 drives the first filter screen cylinder 43 to rotate. The rotation of the first filter screen cylinder 43 throws out the impurities on the surface of the first filter screen cylinder 43, preventing impurities from adhering to the surface of the filter screen cylinder and preventing the filter screen cylinder from clogging.

[0033] Example 2: refer to Figure 4 and Figure 8The impurity guiding mechanism 5 includes a guide cylinder 51, which is bolted to the inner wall of the multi-media tank 1. The guide cylinder 51 is conical in shape. An annular baffle 52 is bolted to the bottom of the guide cylinder 51. The inner diameter of the annular baffle 52 is larger than the outer diameter of the first filter cylinder 43. The annular baffle 52 is bolted to the inner wall of the multi-media tank 1. Eight push rods 53 are bolted to the surface of the first filter cylinder 43. The eight push rods 53 are evenly distributed on the surface of the first filter cylinder 43. The push rods 53 are curved and have a J-shaped cross-section. The push rods 53 are located between the annular baffle 52 and the partition 42. During this process, water enters the multi-media tank 1 through the inlet pipe 2 via the impurity guiding mechanism 5. Since the inlet steel pipe is set along the tangential direction of the multi-media tank 1, the water will flow downward along the inner wall of the multi-media tank 1 after entering the tank, thus forming a vortex. The vortex will cause impurities in the water to move downward and enter the bottom of the annular baffle 52 through the gap between the annular baffle 52 and the first filter screen cylinder 43. The rotation of the first filter screen cylinder 43 drives the push rod 53 to rotate. Since the pushing side of the push rod 53 is curved, the rotation of the push rod 53 continuously pushes the impurities outward. Since the cross-section of the push rod 53 is J-shaped, the impurities will not float around when the push rod 53 pushes them.

[0034] refer to Figure 5 and Figure 9The collection mechanism 6 includes a collection hood 61, which is in communication with the surface of the multi-media tank 1. The collection hood 61 is conical. A water pump 62 is connected to the surface of the collection hood 61. The output end of the water pump 62 is connected to a first valve 63. The other end of the first valve 63 is connected to a collection cylinder 64. A conical cylinder 65 is threaded to the bottom of the collection cylinder 64. A first sealing ring 66 is provided between the conical cylinder 65 and the collection cylinder 64. A second valve 67 is connected to the bottom of the conical cylinder 65. A second filter screen cylinder 68 is threaded to the inner wall of the collection cylinder 64. A second sealing gasket 69 is provided between the second filter screen cylinder 68 and the inner wall of the collection cylinder 64. A third valve 610 is connected to the top of the collection cylinder 64. The other end of the third valve 610 is connected to a connecting pipe 611, and the other end of the connecting pipe 611 is in communication with the surface of the multi-media tank 1. A support plate is bolted to the surface of the media tank 1, and the water pump 62 is bolted to the support plate. The collection cylinder 64 is fixedly sleeved to the support plate. By setting up the collection mechanism 6, when impurities pass through the collection hood 61, the water pump 62 draws the impurities from the media tank 1 into the collection hood 61, and then into the collection cylinder 64. The second filter screen 68 in the collection cylinder 64 filters the water, leaving the impurities in the collection cylinder 64. The water passes through the second filter screen 68 and enters the connecting pipe 611, and then flows back into the media tank 1 from the connecting pipe 611. When there are many impurities in the collection cylinder 64, the water pump 62, the first valve 63 and the third valve 610 are turned off, and the second valve 67 is opened to discharge the impurities, thus facilitating cleaning and maintenance. After cleaning, the second valve 67 is turned off, the first valve 63 and the third valve 610 are opened, and finally the water pump 62 is turned on.

[0035] refer to Figure 4 The filtration mechanism includes two partition plates 71, which are bolted to the inner wall of the multi-media tank 1. The surface of the partition plate 42 is provided with through holes 72. Quartz sand 73 is filled between the two partition plates 71. Anthracite 74 is provided on the top of the top partition plate 71. The bottom of the multi-media tank 1 is connected to a drain valve 75. By setting up the filtration mechanism, the anthracite 74 and quartz sand 73 filter the water, and the drain valve 75 facilitates the discharge of sewage.

[0036] refer to Figure 4 , Figure 6 and Figure 7The flow equalization mechanism 8 includes a fixed pipe 81, the inner wall of which is rotatably sleeved with the surface of the first filter screen cylinder 43, and the fixed pipe 81 is bolted to the bottom of the partition plate 42. Six branch pipes 82 are connected to the surface of the fixed pipe 81 and are evenly distributed on the surface of the fixed pipe 81. Two outlet holes 83 are provided at the bottom of each branch pipe 82, with an included angle of 30° between them. The diameter of the outlet holes 83 gradually increases from the inside to the outside. A flow equalization plate 84 is bolted to the inner wall of the multi-media tank 1. A circular protrusion 85 is integrally formed on the surface of the flow equalization plate 84, and a drain hole 86 is provided on the surface of the circular protrusion 85. Through the flow equalization mechanism 8, the filtered raw water enters the interior of the filter screen cylinder. The water enters the diversion pipe 82 through the fixed pipe 81 and is discharged from the outlet hole 83. Since the diameter of the outlet hole 83 gradually increases from the inside to the outside, the water can be discharged evenly. Furthermore, since the included angle between the two outlet holes 83 is 30°, the water discharge area is increased, further improving the uniformity of the water discharge. The water falls from the outlet hole 83 onto the flow equalization plate 84. Since the circular protrusion 85 on the flow equalization plate 84 is higher than the bottom of the flow equalization plate 84, the water will be dispersed on the flow equalization plate 84. When the water level on the flow equalization plate 84 is higher than the circular protrusion 85, the water is discharged downward through the drain hole 86 on the circular protrusion 85, further improving the flow equalization effect and ensuring the utilization rate of the filter media. After being filtered by the anthracite 74 and quartz sand 73 filter media, the water is discharged through the outlet pipe 3 and enters the next treatment stage.

[0037] refer to Figure 4 The maintenance mechanism 9 includes two circular windows 91, which are located at the top and bottom of the flow equalization plate 84, respectively. The surface of the circular windows 91 is covered with a cover plate 92. The cover plate 92 is threadedly connected to the inner wall of the circular windows 91 by multiple fixing bolts 93. A third sealing gasket 94 is provided between the cover plate 92 and the inner wall of the circular windows 91. By setting up the maintenance mechanism 9, the fixing bolts 93 can be loosened and the cover plate 92 can be opened. The interior of the multi-media tank 1 can be maintained through the circular windows 91. The third sealing gasket 94 seals the cover plate 92 to prevent water leakage.

[0038] Brief description of usage: (e.g.) Figure 10Raw water enters multi-media tank 1 through inlet pipe 2. After being filtered by anthracite 74 and quartz sand 73 to remove large impurities, it then enters activated carbon filter 11. Utilizing the strong adsorption capacity of activated carbon, residual chlorine, some organic matter, and odors are removed from the water, protecting the subsequent RO membrane from oxidation. Next, it enters softener 12. The sodium-type cation exchange resin inside softener 12 removes calcium and magnesium ions from the water through ion exchange, preventing scaling on the RO membrane surface. Then, it enters security filter 13. The 5μm filter element in security filter 13 intercepts residual fine particles, ensuring the incoming water quality meets the RO membrane requirements. Finally, after being pressurized by high-pressure pump 14, it enters reverse osmosis module 15, where over 99% of the salt, ions, and organic matter in the water are removed. After removing impurities such as bacteria and viruses, the water enters the intermediate water tank 16. From there, it enters the electro-deionization device 17 for deep desalination and ultrapurification. Then, it enters the polishing mixed bed 18 to further capture and remove any trace ions that may remain in the water, ensuring that the final water quality meets the highest standards. Next, it enters the ultraviolet sterilizer 19, which uses ultraviolet light of a specific wavelength to kill any microorganisms that may be present and decompose organic molecules. Then, it enters the ultrafiltration device 20, which uses a membrane with a pore size of approximately 0.01 to 0.05 micrometers to remove bacteria, endotoxins, and extremely small particulate matter. Finally, it enters the terminal precision filter 21, which uses a microporous filter membrane of 0.1 μm or 0.2 μm to ensure the purity of the output water. Finally, it enters the pure water storage tank 22 for storage and use.

[0039] After the raw water enters the multi-media tank 1 from the inlet pipe 2 through the water pump 62, it impacts the blade 45 along the tangential direction of the blade 45 and causes the blade 45 to rotate. The rotation of the blade 45 drives the first filter screen cylinder 43 to rotate. The rotation of the first filter screen cylinder 43 throws out the impurities on the surface of the first filter screen cylinder 43, preventing impurities from adhering to the surface of the filter screen cylinder and preventing the filter screen cylinder from clogging. The filter screen filters the raw water. The filtered raw water enters the interior of the filter screen and flows through the fixed pipe 81 into the diversion pipe 82, and is discharged from the outlet hole 83. Since the diameter of the outlet hole 83 gradually increases from the inside to the outside, the water output is uniform. Furthermore, since the included angle between the two outlet holes 83 is 30°, the water output area is increased, further improving the uniformity of the water output. The water falls from the outlet hole 83 onto the flow equalization plate 84. Since the circular protrusion 85 on the flow equalization plate 84 is higher than the bottom of the flow equalization plate 84, the water will be dispersed on the flow equalization plate 84. When the water level on the flow equalization plate 84 is higher than the circular protrusion 85, the water is discharged downward through the drain hole 86 on the circular protrusion 85, further improving the flow equalization effect and ensuring the utilization rate of the filter media. After being filtered by the anthracite 74 and quartz sand 73 filter media, the water is discharged through the outlet pipe 3 and enters the next treatment stage. Water enters the multi-media tank 1 through the inlet pipe 2. Since the inlet steel pipe is set along the tangential direction of the multi-media tank 1, the water will flow downward along the inner wall of the multi-media tank 1 after entering the tank, thus forming a vortex. The vortex will cause impurities in the water to move downward and enter the bottom of the annular baffle 52 through the gap between the annular baffle 52 and the first filter screen cylinder 43. The rotation of the first filter screen cylinder 43 drives the push rod 53 to rotate. Since the pushing side of the push rod 53 is curved, the rotation of the push rod 53 continuously pushes the impurities outward. Since the cross-section of the push rod 53 is J-shaped, the impurities will not float around when the push rod 53 pushes them. When impurities pass through the collection hood 61, the water pump 62 draws the impurities from the multi-media tank 1 into the collection hood 61, and then into the collection cylinder 64. The second filter screen 68 in the collection cylinder 64 filters the water, leaving the impurities in the collection cylinder 64. The water passes through the second filter screen 68 and enters the connecting pipe 611, and then flows back into the multi-media tank 1 from the connecting pipe 611. When there are many impurities in the collection cylinder 64, the water pump 62, the first valve 63 and the third valve 610 are turned off, and the second valve 67 is opened to discharge the impurities, thus facilitating cleaning and maintenance. After cleaning, the second valve 67 is turned off, the first valve 63 and the third valve 610 are opened, and finally the water pump 62 is turned on. Rotate the conical cylinder 65 to disassemble it, then rotate the second filter cylinder 68 to remove it for maintenance. After maintenance, reinstall the second filter cylinder 68 and seal it with the second sealing gasket 69. Then install the conical cylinder 65 onto the collection cylinder 64 and seal it with the first seal to prevent leakage, thus facilitating the maintenance of the second filter cylinder 68.

[0040] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0041] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A cleanroom water filtration device with an anti-clogging flow channel structure, comprising a multi-media tank (1), characterized in that, The surface of the multi-media tank (1) is connected to an inlet pipe (2) and an outlet pipe (3). The interior of the multi-media tank (1) is provided with a drive mechanism (4), a guide mechanism (5), a collection mechanism (6), a filtration mechanism, a flow equalization mechanism (8) at the bottom of the drive mechanism (4), and a maintenance mechanism (9) on the surface of the multi-media tank (1).

2. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 1, characterized in that, One end of the inlet pipe (2) is connected to the raw water tank (10) via a water pump (62), and one end of the outlet pipe (3) is connected to the activated carbon filter (11) via a water pump (62). The surface of the activated carbon filter (11) is connected to the softener (12) via a water pump (62), and the surface of the softener (12) is connected to the security filter (13) via a water pump (62).

3. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 2, characterized in that, The surface of the security filter (13) is connected to a high-pressure pump (14), the output end of the high-pressure pump (14) is connected to a reverse osmosis module (15), the output end of the reverse osmosis module (15) is connected to an intermediate water tank (16) via a water pump (62), and the surface of the intermediate water tank (16) is connected to an electro-deionization device (17).

4. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 3, characterized in that, The surface of the electro-deionization device (17) is connected to a polishing mixed bed (18) via a water pump (62). The surface of the polishing mixed bed (18) is connected to an ultraviolet sterilizer (19) via a connecting pipe (611). The surface of the ultraviolet sterilizer (19) is connected to an ultrafiltration device (20) via a water pump (62). The surface of the ultrafiltration device (20) is connected to a terminal precision filter (21) via a water pump (62). The surface of the terminal precision filter (21) is connected to a pure water storage tank (22) via a water pump (62).

5. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 4, characterized in that, The drive mechanism (4) includes a fixed frame (41), which is bolted to the inner wall of the multi-media tank (1). The inner wall of the multi-media tank (1) is bolted to a partition (42). A first filter screen cylinder (43) is rotatably sleeved between the inner wall of the partition (42) and the fixed frame (41). The first filter screen cylinder (43) is made of stainless steel. A rotating block (44) is fixedly sleeved on the surface of the first filter screen cylinder (43). Several blades (45) are bolted to the surface of the rotating block (44).

6. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 5, characterized in that, The impurity guiding mechanism (5) includes a guide tube (51), which is bolted to the inner wall of the multi-media tank (1). The guide tube (51) is conical in shape. An annular baffle (52) is bolted to the bottom of the guide tube (51). The inner diameter of the annular baffle (52) is larger than the outer diameter of the first filter screen cylinder (43). The annular baffle (52) is bolted to the inner wall of the multi-media tank (1). A push rod (53) is bolted to the surface of the first filter screen cylinder (43). There are eight push rods (53). The eight push rods (53) are evenly distributed on the surface of the first filter screen cylinder (43). The push rods (53) are curved. The cross-section of the push rods (53) is J-shaped. The push rods (53) are located between the annular baffle (52) and the partition (42).

7. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 1, characterized in that, The collection mechanism (6) includes a collection hood (61), which is connected to the surface of the multi-media tank (1) and is conical. A water pump (62) is connected to the surface of the collection hood (61), and the output end of the water pump (62) is connected to a first valve (63). The other end of the first valve (63) is connected to a collection cylinder (64). A conical cylinder (65) is threaded to the bottom of the collection cylinder (64), and a first sealing ring (66) is provided between the conical cylinder (65) and the collection cylinder (64). A second valve is connected to the bottom of the conical cylinder (65). 67), the inner wall of the collecting cylinder (64) is threaded with a second filter cylinder (68), a second sealing gasket (69) is provided between the second filter cylinder (68) and the inner wall of the collecting cylinder (64), the top of the collecting cylinder (64) is connected to a third valve (610), the other end of the third valve (610) is connected to a connecting pipe (611), and the other end of the connecting pipe (611) is connected to the surface of the multi-media tank (1), the surface of the multi-media tank (1) is bolted with a support plate, and the water pump (62) is bolted to the support plate, and the collecting cylinder (64) is fixedly sleeved with the support plate.

8. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 1, characterized in that, The filtration mechanism includes two partition plates (71), which are bolted to the inner wall of the multi-media tank (1). The surface of the partition plate (42) is provided with through holes (72). Quartz sand (73) is filled between the two partition plates (71). Anthracite (74) is provided on the top of the top partition plate (71). A drain valve (75) is connected to the bottom of the multi-media tank (1).

9. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 5, characterized in that, The flow equalization mechanism (8) includes a fixed pipe (81), the inner wall of which is rotatably sleeved with the surface of the first filter screen cylinder (43), and the fixed pipe (81) is bolted to the bottom of the partition plate (42). The surface of the fixed pipe (81) is connected to a diversion pipe (82), and there are six diversion pipes (82), which are evenly distributed on the surface of the fixed pipe (81). The bottom of the diversion pipe (82) is provided with two drain holes (83), and the included angle between the two drain holes (83) is 30°. The diameter of the drain holes (83) gradually increases from the inside to the outside. The inner wall of the multi-media tank (1) is bolted to a flow equalization plate (84), and the surface of the flow equalization plate (84) is integrally formed with a circular protrusion (85). The surface of the circular protrusion (85) is provided with a drain hole (86).

10. A cleanroom water filtration device with an anti-clogging flow channel structure according to claim 9, characterized in that, The maintenance mechanism (9) includes two circular windows (91), which are located at the top and bottom of the flow equalization plate (84) respectively. The surface of the circular windows (91) is covered with a cover plate (92). The cover plate (92) is threadedly connected to the inner wall of the circular windows (91) by multiple fixing bolts (93). A third sealing gasket (94) is provided between the cover plate (92) and the inner wall of the circular windows (91).

Images