A water purification filtration unit based on scale inhibitors

Abstract

This invention relates to the field of water purification and filtration technology, and discloses a water purification and filtration unit based on a scale inhibitor. The unit includes a body, with an inlet pipe at the top and a purified water drain pipe and a wastewater drain pipe at the bottom. Control valves are installed on both the purified water and wastewater drain pipes. A fixing ring and a baffle are fixed to the inner top of the body. This invention achieves intelligent adjustment of the scale inhibitor's packing density through a baffle design. It automatically removes surface-adhered impurities using the reverse flushing action of water flow. The entire process is completed automatically by a mechanical structure, requiring no additional energy or chemical cleaning agents. This maintains the scale inhibitor's optimal working condition and significantly extends its service life. The dual-pipe design for purified and wastewater ensures precise discharge, guaranteeing that impurities and wastewater are completely discharged through dedicated pipes, avoiding cross-contamination.

Description

Technical Field

[0001] This invention relates to the field of water purification and filtration technology, and in particular to a water purification and filtration unit based on scale inhibitors. Background Technology

[0002] A scale inhibitor-based water filtration unit is a water treatment device that combines physical filtration with chemical scale inhibition technology. Its core function is to prevent minerals such as calcium and magnesium ions in the water from forming scale through scale inhibitors, while using filter components to remove impurities, bacteria and other pollutants from the water, thereby extending the equipment's lifespan, improving filtration efficiency and ensuring water quality safety.

[0003] A search revealed that Chinese patent CN223033259U discloses a filter cartridge structure and water purification system with a scale inhibitor module. The inlet of a three-way valve is connected to a PP cotton activated carbon module, and the two outlets are connected to the scale inhibitor module and the domestic water pipeline, respectively, forming a first water path connecting the PP cotton activated carbon module to the domestic water pipeline, and a second water path connecting the PP cotton activated carbon module to the scale inhibitor module. In the water purification system, the inlet of the PP cotton activated carbon module in the filter cartridge structure is connected to tap water, and the outlet of the scale inhibitor module is sequentially connected to a booster pump, an RO filter cartridge, a check valve, and a CB filter cartridge. This solution can effectively protect the RO membrane while solving the problem of substandard water quality at the domestic water outlet. However, in practical use, the above solution still has the following shortcomings:

[0004] In practical application, the above-mentioned scheme utilizes scale inhibitors to influence the crystallization behavior of scale-forming ions and the aggregation state of particles in the water. When scale inhibitor molecules combine with calcium and magnesium ions to form soluble complexes, if there are impurities such as suspended particles, colloids, organic matter, or microorganisms in the water, these substances may adhere to the surface of the scale inhibitor molecular clusters through physical adsorption or chemical bonding, forming a coating layer. In this case, the scale inhibitor's scale inhibition effect on the water will be greatly reduced. However, the above-mentioned scheme does not have the function of cleaning scale inhibitors. These effects will lead to a surge in the demand for scale inhibitors, a sharp drop in equipment heat exchange efficiency, an increase in backwashing frequency, an increase in energy consumption, and even safety hazards such as localized corrosion and perforation. The overall economic efficiency and reliability of the water treatment system will be greatly reduced.

[0005] Therefore, it is necessary to design a water purification filtration unit based on scale inhibitors to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a water purification and filtration unit based on scale inhibitors.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A scale inhibitor-based water filtration unit includes a body, an inlet pipe at the top of the body, a clean water drain pipe and a wastewater drain pipe at the bottom of the body, a control valve installed on both the clean water drain pipe and the wastewater drain pipe, and a fixing ring and a baffle fixed to the inner top of the body.

[0009] The machine body is equipped with a movable placement assembly, which includes a cylinder. Both the upper and lower ends of the cylinder are open. An upper cap is arranged at the top of the cylinder and a lower cap is arranged at the bottom. An installation port is opened at the bottom of the machine body. A pull rod is fixed on the lower cap. The end of the pull rod away from the lower cap passes through the installation port and slides in the installation port.

[0010] The interior of the cylinder is provided with a separator for separating the scale inhibitor, and the separator includes several partitions.

[0011] As a preferred embodiment of the present invention, in the movable placement assembly, both the upper cap and the lower cap are provided with openings, and the upper cap and the fixing ring are connected by a connecting spring.

[0012] As a preferred embodiment of the present invention, two opposing limiting blocks are fixed on the outer circumferential surface of the cylinder, and two limiting grooves are formed inside the machine body, with the two limiting blocks sliding in the two limiting grooves respectively.

[0013] As a preferred embodiment of the present invention, the separating component includes several partitions, each partition having several water inlets for water to pass through. The partition at the bottom is fixed inside the cylinder, while the remaining partitions slide inside the cylinder. Adjacent partitions are connected by a first connecting rope. The separating component also includes a float, which is hollow inside. The partition at the top is connected to the float by a second connecting rope.

[0014] As a preferred embodiment of the present invention, a plurality of the partitions are arranged in a linear array along the height direction of the cylinder, and the outer peripheral surface of each partition is in contact with the inner surface of the cylinder.

[0015] As a preferred embodiment of the present invention, the upper cap is provided with a groove, and in the initial state, the float falls into the groove.

[0016] As a preferred embodiment of the present invention, a sealing groove is provided on the groove wall of the mounting port, and a sealing ring is fixed inside the sealing groove, and the sealing ring is hollow inside.

[0017] As a preferred embodiment of the present invention, a pressurizing component is provided on the surface of the machine body. The pressurizing component includes a sealing cylinder, and a sliding plug is slidably connected inside the sealing cylinder. A connecting rod is fixed on the sliding plug. The end of the connecting rod away from the sliding plug extends to the outside of the sealing cylinder and is fixed with a movable block. The sealing cylinder and the sealing ring are connected by a connecting pipe. The movable block is made of a magnet, and the machine body is made of magnetic material.

[0018] As a preferred embodiment of the present invention, the movable block is provided with an arc surface adapted to the body, and the arc surface is in contact with the outer peripheral surface of the body.

[0019] As a preferred embodiment of the present invention, both the sealing groove and the sealing ring are annular structures.

[0020] The present invention has the following beneficial effects:

[0021] 1. Through the design of the baffle, the density of the scale inhibitor is intelligently adjusted. Under normal working conditions, the connecting spring keeps the cylinder at its upper limit position. At this time, the baffle is in a "closed" state, and the scale inhibitor is piled up at a high density to ensure full contact with the water flow and maximize the scale inhibition effect. When cleaning is required, the pull rod is pulled down to move the cylinder down. The buoyancy of the float pulls the baffle layer by layer through the first and second connecting ropes to form a low-density extended state. This periodic closing-extension movement causes the scale inhibitor to generate relative displacement in the water. The reverse flushing action of the water flow is used to automatically remove the surface impurities. The whole process is completed automatically by the mechanical structure without the need for additional energy or chemical cleaning agents. This maintains the best working state of the scale inhibitor and significantly extends its service life.

[0022] 2. By setting a sealing ring and a pressurizing component, the magnetic movable block controls the movement of the sliding plug. Air is charged and released into the hollow sealing ring through the connecting pipe to achieve dynamic sealing pressure regulation. During operation, the sealing ring is inflated and expands, applying uniform pressure to the pull rod to completely eliminate leakage. During maintenance, air is released and pressure is released for easy disassembly. This design not only solves the common water leakage problem of moving parts, but also greatly improves the maintainability of the equipment.

[0023] 3. The dual-pipeline design for clean water and wastewater enables precise discharge, ensuring that impurities and wastewater are completely discharged through dedicated pipes to avoid cross-contamination. After wastewater discharge, the system can immediately resume normal water purification mode. This closed-loop cleaning solution not only ensures stable and compliant water quality but also significantly reduces solid waste generated from scale inhibitor replacement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a water purification filtration unit based on scale inhibitor proposed in this invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of a water purification filtration unit based on scale inhibitor proposed in this invention. Figure 2 ;

[0026] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0028] Figure 5 for Figure 3 A magnified view of the local structure;

[0029] Figure 6 for Figure 5 Enlarged view of the structure at point B;

[0030] Figure 7 A schematic diagram of the structure for the movable placement components;

[0031] Figure 8 A cross-sectional view of the movable component;

[0032] Figure 9 This is a schematic diagram of the structure of several partitions and floats;

[0033] Figure 10 This is a schematic diagram of the structure when several partitions are in an extended state.

[0034] In the diagram: 11. Body; 111. Fixing ring; 112. Baffle; 113. Mounting port; 1131. Sealing groove; 1132. Sealing ring; 12. Water inlet pipe; 13. Clean water drain pipe; 14. Wastewater drain pipe; 15. Control valve; 21. Cylinder; 22. Upper cap; 221. Groove; 222. Connecting spring; 23. Lower cap; 231. Pull rod; 31. Partition plate; 32. Water inlet; 33. Float; 34. First connecting rope; 35. Second connecting rope; 41. Sealing cylinder; 42. Sliding plug; 43. Connecting rod; 44. Movable block; 45. Connecting pipe. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Reference Figure 1-10A water purification filter unit based on scale inhibitor includes a body 11. A water inlet pipe 12 is provided at the top of the body 11, through which water enters the body 11. A clean water drain pipe 13 and a wastewater drain pipe 14 are provided at the bottom of the body 11. The clean water drain pipe 13 is used to discharge the purified water. When the water purification filter unit is in use, the water enters the body 11 through the water inlet pipe 12, and after scale inhibition treatment, it is discharged through the clean water drain pipe 13. The wastewater drain pipe 14 is used to discharge the wastewater generated by cleaning the scale inhibitor. A control valve 15 is installed on both the clean water drain pipe 13 and the wastewater drain pipe 14. The operator can control the opening and closing of the clean water drain pipe 13 and the wastewater drain pipe 14 through the control valve 15. A fixing ring 111 and a baffle 112 are fixed on the inner top of the body 11.

[0037] The body 11 has a movable placement assembly inside, which includes a cylinder 21. Both the upper and lower ends of the cylinder 21 are open. An upper cap 22 is located at the top of the cylinder 21, and a lower cap 23 is located at the bottom. Both the upper cap 22 and the lower cap 23 have openings to allow water to pass through the cylinder 21. Two opposing limiting blocks are fixed to the outer circumference of the cylinder 21. Two limiting grooves are formed inside the body 11, and the two limiting blocks slide within these grooves respectively. The cylinder 21... During the movement of the body 11, two limiting blocks and two limiting grooves provide limiting to ensure the stability of the movement of the cylinder 21. In addition, the outer circumferential surface of the cylinder 21 is in contact with the inner surface of the body 11, which also ensures the stability of the movement of the cylinder 21. The upper cap 22 and the fixing ring 111 are connected by a connecting spring 222. The connecting spring 222 is set for the automatic reset of the cylinder 21. In the initial state, under the action of the connecting spring 222, the cylinder 21 is located at the upper limit position.

[0038] The bottom of the machine body 11 is provided with an installation port 113. A pull rod 231 is fixed on the lower cap 23. The end of the pull rod 231 away from the lower cap 23 passes through the installation port 113 and slides in the installation port 113. The end of the pull rod 231 located outside the machine body 11 is fixed with a handle, which makes it convenient for the staff to pull the pull rod 231. When in use, the staff can pull the lower cap 23 through the pull rod 231, so that the lower cap 23 drives the cylinder 21 to move inside the machine body 11.

[0039] The interior of the cylinder 21 is equipped with a partition assembly for separating the scale inhibitor. The partition assembly includes several partitions 31, each with several water inlets 32 for water to pass through. The partitions 31 are arranged in a linear array along the height of the cylinder 21. The partitions 31 at the bottom are fixed inside the cylinder 21, while the remaining partitions 31 slide inside the cylinder 21. Adjacent partitions 31 are connected by a first connecting rope 34. The partition assembly also includes a float 33, which is hollow inside. The partitions 31 at the top are connected to the float 33 by a second connecting rope 35. The outer circumferential surface of each partition 31 is in contact with the inner surface of the cylinder 21. The scale inhibitor is placed on the partitions 31. In the initial state, such as... Figure 3 As shown, under the elastic force of the connecting spring 222, the cylinder 21 is located at the upper limit position. At this time, the float 33 falls on the upper cap 22 and the float 33 abuts against the baffle 112. Under these circumstances, the position of the float 33 will be fixed. For any two adjacent partitions 31, the upper partition 31 will naturally fall on the scale inhibitor on the lower partition 31. That is, several partitions 31 are in a "folded" state. It can be understood that for several partitions 31 in the "folded" state, the stacking density of the scale inhibitor on them is high. The purpose is to make the scale inhibitor fully contact the water and ensure the effect of the scale inhibitor on the water.

[0040] The water purification filter unit proposed in this invention has the function of cleaning scale inhibitors. Specifically, when it is necessary to clean impurities adhering to the surface of the scale inhibitor, the operator first closes the control valves 15 on the purified water drain pipe 13 and the wastewater drain pipe 14 to prevent water from flowing out through them. Then, water is injected into the machine body 11 through the inlet pipe 12 to fill the machine body 11 with water, so that the cylinder and float 33 are completely submerged in water. Further, the operator pulls the lever 231, which moves the cylinder 21 up and down inside the machine body 11. When the cylinder 21 moves down... The cylinder 21 can move the lowest partition 31 downwards, but the buoyancy of the water on the float 33 causes it to still tend to move upwards. In this case, the distance between the float 33 and the cylinder 21 gradually increases, which tightens the second connecting rope 35, causing relative movement between the highest partition 31 and the cylinder 21. Adjacent partitions 31 are connected by the first connecting rope 34, so the distance between adjacent partitions 31 increases as the cylinder 21 moves downwards. When the cylinder 21 descends to its lower limit position, several partitions 31 together form... Figure 8 As shown in the state, the density of the scale inhibitor inside the cylinder 21 will be greatly reduced. Conversely, when the cylinder 21 moves upward and resets under the action of the connecting spring 222, several partitions 31 will also reset under the action of gravity.

[0041] In summary, under the combined action of the up-and-down movement of the cylinder 21 and the buoyancy of the float 33, the partitions 31 can periodically retract and extend. When the partitions 31 extend, the density of the scale inhibitor piled on the partitions 31 is greatly reduced, which allows the scale inhibitor to fully and evenly contact the water. At the same time, the up-and-down movement of the scale inhibitor in the water allows the water to perform "reverse flushing" on the scale inhibitor, that is, the water is still while the scale inhibitor moves in the water. During this process, the impurities attached to the surface of the scale inhibitor will fall off under the resistance of the water, achieving self-cleaning of the scale inhibitor. By actively reducing the density of the scale inhibitor through the movable characteristics of the partitions 31, the cleaning effect is guaranteed, and impurities on the surface of the scale inhibitor can be effectively removed, maintaining the performance of the scale inhibitor, extending its service life, ensuring the stable and efficient operation of the water purification filter unit, and reducing maintenance costs and frequency.

[0042] After the staff pulls the lever 231 multiple times, the cleaning process ends. At this time, the staff keeps the lever 231 pulled down, so that several partitions 31 remain extended. The purpose is to obtain a scale inhibitor with a smaller stacking density. Then, the staff opens the control valve 15 on the wastewater drain pipe 14, so that the water inside the machine body 11 is discharged from the wastewater drain pipe 14. During this process, impurities mixed in the water can be discharged along with the water. Furthermore, the staff can supply water to the inside of the machine body 11 again through the water inlet pipe 12, so that the water flow can flush the scale inhibitor, thereby thoroughly flushing out the impurities inside the cylinder 21.

[0043] It is worth noting that both the first connecting rope 34 and the second connecting rope 35 are made of non-elastic ropes so that several partitions 31 can move under the action of the float 33.

[0044] The upper cap 22 has a groove 221. In the initial state, the float 33 falls into the groove 221. The groove 221 can increase the positional stability of the float 33 when it falls on the upper cap 22.

[0045] A sealing groove 1131 is formed on the groove wall of the mounting port 113. A sealing ring 1132 is fixed inside the sealing groove 1131, and the sealing ring 1132 is hollow inside. The sealing ring 1132 can increase the sealing performance between the pull rod 231 and the mounting port 113, and prevent water leakage at the connection position of the pull rod 231 and the mounting port 113. In order to further improve the sealing performance at the connection position of the pull rod 231 and the mounting port 113, the present invention provides a pressurizing component, which is arranged on the outer peripheral surface of the body 11. The pressurization assembly includes a sealing cylinder 41, with a sliding plug 42 slidably connected inside the sealing cylinder 41. A connecting rod 43 is fixed on the sliding plug 42. One end of the connecting rod 43, away from the sliding plug 42, extends to the outside of the sealing cylinder 41 and is fixed with a movable block 44. The sealing cylinder 41 and the sealing ring 1132 are connected by a connecting pipe 45. The movable block 44 is provided with an arc surface that is adapted to the body 11. The arc surface fits against the outer peripheral surface of the body 11. The movable block 44 is made of magnet, which allows the movable block 44 to be attracted to the surface of the body 11.

[0046] After the water purification filter unit is assembled, the operator can control the movable block 44 to move down. When the movable block 44 moves down, it can drive the sliding plug 42 to move down through the connecting rod 43. During the downward movement of the sliding plug 42, the gas in the sealing cylinder 41 can be forced into the interior of the sealing ring 1132 through the connecting pipe 45, causing the sealing ring 1132 to inflate. When the sealing ring 1132 expands, it can apply mechanical pressure to the pull rod 231. The presence of this pressure can effectively increase the sealing performance of the connection between the pull rod 231 and the mounting port 113. Conversely, when it is necessary to disassemble the machine or replace the scale inhibitor inside the machine body 11, the operator can lift the movable block 44 to move the sliding plug 42 up. When the sliding plug 42 moves up, the air inside the sealing ring 1132 can be extracted through the connecting pipe 45 to reduce the pressure between the sealing ring 1132 and the pull rod 231, thereby facilitating disassembly or replacement.

[0047] The body 11 has a clearance opening that matches the connecting pipe 45, allowing the connecting pipe 45 to pass through. The body 11 is made of magnetic material so that the movable block 44 can be attached to the body 11.

[0048] The specific working principle of this invention is as follows:

[0049] This scale inhibitor-based water filtration unit achieves dynamic adjustment and self-cleaning functions of the scale inhibitor through innovative mechanical structure design. Its core working principle is as follows: During normal water purification operation, the connecting spring 222 keeps the cylinder 21 at its upper limit position. At this time, the float 33 is fixed against the baffle 112, and the multi-layered baffles 31 are in a "closed" state under gravity, allowing the scale inhibitor to accumulate at a high density. This ensures that the water flow can fully contact the scale inhibitor to achieve the best scale inhibition effect. When cleaning is required, the operator closes the drain valve and fills the tank with water. Then, the external pull rod 231 moves the cylinder 21 downwards. At this time, the buoyancy of the float 33 pulls the baffles 31 apart layer by layer through the connecting rope system, forming... In the "extended" state, the scale inhibitor's density decreases and it moves in the water. It uses water flow resistance to achieve reverse flushing, effectively removing surface impurities. The repeated up-and-down movement of the cylinder 21 can enhance the cleaning effect. Finally, in the extended state, the wastewater valve is opened to discharge wastewater containing impurities. The unit is also equipped with an intelligent sealing system. The air pressure of the sealing ring 1132 is adjusted through the magnetic pressurization component, which not only ensures complete sealing during operation but also facilitates disassembly during maintenance. The entire system realizes intelligent switching between the working state and the cleaning state of the scale inhibitor through a purely mechanical structure. It does not require external energy or complex control. While ensuring water purification efficiency, it significantly extends the service life of the scale inhibitor and reduces maintenance costs.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water purification filtration unit based on a scale inhibitor, characterized in that, Includes a body (11), with a water inlet pipe (12) at the top of the body (11), and a clean water drain pipe (13) and a wastewater drain pipe (14) at the bottom of the body (11). Both the clean water drain pipe (13) and the wastewater drain pipe (14) are equipped with control valves (15). A fixing ring (111) and a baffle (112) are fixed to the inner top of the body (11). The body (11) is equipped with a movable placement assembly, which includes a cylinder (21). The upper and lower ends of the cylinder (21) are open. The top end of the cylinder (21) is provided with an upper cap (22) and the bottom end is provided with a lower cap (23). The bottom end of the body (11) is provided with an installation port (113). A pull rod (231) is fixed on the lower cap (23). The end of the pull rod (231) away from the lower cap (23) passes through the installation port (113) and slides in the installation port (113). The interior of the cylinder (21) is provided with a separation component for separating the scale inhibitor, and the separation component includes several partitions (31). The separating assembly includes several partitions (31), each partition (31) having several water inlets (32) for water to pass through. The partition (31) at the bottom is fixed inside the cylinder (21), and the remaining partitions (31) slide inside the cylinder (21). Adjacent partitions (31) are connected by a first connecting rope (34). The separating assembly also includes a float (33), which is hollow inside. The partition (31) at the top is connected to the float (33) by a second connecting rope (35). The upper cap (22) has a groove (221) and in the initial state, the float (33) falls into the groove (221).

2. The water purification filtration unit based on scale inhibitor according to claim 1, characterized in that, In the movable placement assembly, both the upper cap (22) and the lower cap (23) are provided with openings, and the upper cap (22) and the fixing ring (111) are connected by a connecting spring (222).

3. A water purification filtration unit based on a scale inhibitor according to claim 1, characterized in that, Two opposing limiting blocks are fixed on the outer circumferential surface of the cylinder (21), and two limiting grooves are opened inside the body (11), with the two limiting blocks sliding in the two limiting grooves respectively.

4. A water purification filtration unit based on a scale inhibitor according to claim 1, characterized in that, Several of the partitions (31) are arranged in a straight array along the height direction of the cylinder (21), and the outer peripheral surface of each partition (31) is in contact with the inner surface of the cylinder (21).

5. A water purification filtration unit based on a scale inhibitor according to claim 1, characterized in that, A sealing groove (1131) is provided on the groove wall of the installation port (113), and a sealing ring (1132) is fixed inside the sealing groove (1131), and the sealing ring (1132) is hollow inside.

6. A water purification filtration unit based on a scale inhibitor according to claim 5, characterized in that, The surface of the body (11) is provided with a pressurizing component, which includes a sealing cylinder (41). The sealing cylinder (41) is slidably connected to a sliding plug (42). A connecting rod (43) is fixed on the sliding plug (42). One end of the connecting rod (43) away from the sliding plug (42) extends to the outside of the sealing cylinder (41) and is fixed with a movable block (44). The sealing cylinder (41) and the sealing ring (1132) are connected by a connecting pipe (45). The movable block (44) is made of a magnet, and the body (11) is made of magnetic material.

7. A water purification filtration unit based on a scale inhibitor according to claim 6, characterized in that, The movable block (44) is provided with an arc surface that is adapted to the body (11), and the arc surface is in contact with the outer peripheral surface of the body (11).

8. A water purification filtration unit based on a scale inhibitor according to claim 7, characterized in that, Both the sealing groove (1131) and the sealing ring (1132) are annular structures.

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