Scale inhibition and sterilization device mounted on reverse osmosis system

Abstract

The invention discloses a scale inhibition and sterilization device installed on a reverse osmosis system, and particularly relates to the technical field of reverse osmosis water treatment.The device comprises a shell, the shell is provided with a water inlet and a water outlet, connecting flanges are installed at the ends of the water inlet and the water outlet of the shell, scale inhibition and sterilization plates are evenly distributed on the inner wall of the shell in the axial direction, and the scale inhibition and sterilization plates are connected with the connecting flanges. The inner part of the connecting flange is divided into a plurality of compartments by the scale inhibiting and sterilizing plates; water through grooves axially penetrate through the peripheries of the scale inhibition and sterilization plates, and the water through grooves between the scale inhibition and sterilization plates form a continuous Z-shaped water path; scale inhibition and sterilization rods axially penetrate through the scale inhibition and sterilization plates, and the scale inhibition and sterilization rods penetrating through the water through grooves can rotate. Through the synergistic effect of the scale inhibition and sterilization rod which is made of a specific composite alloy material and can rotate and the scale inhibition and sterilization plate forming the Z-shaped waterway, on the premise that no chemical agent is added, multiple metal ions are slowly released, meanwhile, efficient physical scale inhibition and broad-spectrum sterilization are achieved, and the problems of secondary pollution and cost caused by a traditional chemical method are solved.

Description

Technical Field

[0001] This invention relates to the field of reverse osmosis water treatment technology, specifically to a scale inhibition and sterilization device installed in a reverse osmosis system. Background Technology

[0002] During the operation of a reverse osmosis system, minerals such as calcium and magnesium in the water can easily form scale on the surface of the membrane components. At the same time, the growth of microorganisms can contaminate the membrane elements, leading to a decrease in system flux, an increase in energy consumption, and a shortened membrane life. Existing scale inhibition and sterilization methods mostly rely on chemical agents (such as scale inhibitors and bactericides), which have problems such as agent residue, secondary pollution, frequent agent addition, and high cost. Therefore, the method of using appropriate composite alloy materials to achieve scale inhibition or sterilization functions has emerged. However, at present, the direct-flow water supply has limited effect on scale inhibition and sterilization in reverse osmosis systems. To address these issues, we propose a scale inhibition and sterilization device to be installed in a reverse osmosis system. Summary of the Invention

[0003] The purpose of this invention is to provide a scale inhibition and sterilization device installed in a reverse osmosis system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a scale inhibition and sterilization device installed in a reverse osmosis system, comprising a housing, the housing having an inlet and an outlet, a connecting flange installed at the ends of the inlet and outlet of the housing, and scale inhibition and sterilization plates axially evenly distributed on the inner wall of the housing, the scale inhibition and sterilization plates dividing the interior of the connecting flange into multiple compartments. The scale-inhibiting and sterilizing plate has a water channel extending axially through its outer periphery, and the water channels between the scale-inhibiting and sterilizing plates form a continuous Z-shaped water channel. The scale-inhibiting and sterilizing plates are axially connected by scale-inhibiting and sterilizing rods, and the scale-inhibiting and sterilizing rods passing through the water tank can rotate.

[0005] In a preferred embodiment of the present invention, the scale-inhibiting and sterilizing rods are circular rods, the center distance between the scale-inhibiting and sterilizing rods is smaller than the diameter of the scale-inhibiting and sterilizing rods, the scale-inhibiting and sterilizing rods are arranged in an alternating manner, and tortuous gaps for water supply are formed between the scale-inhibiting and sterilizing rods.

[0006] In a preferred embodiment of the present invention, an impeller assembly is installed on the outer wall of the portion of the scale-inhibiting and sterilizing rod located in the water passage. The impeller assembly is directly opposite the water inlet and can rotate under the impact of water flow, thereby driving the scale-inhibiting and sterilizing rod to rotate.

[0007] In a preferred embodiment of the present invention, the impeller assembly includes a body and blades; The center of the main body is axially oriented and is installed on the outer wall of the scale-inhibiting and sterilizing rod; One side of the main body is conical, and the conical side of the main body faces the water inlet of the shell. The main body is conical, with circumferentially distributed blades on one side, and the blades are in a spiral shape.

[0008] In a preferred embodiment of the present invention, the shell is composed of end shell one and end shell two; The end of the second end shell near the first end shell is sleeved on the outside of the end of the first end shell near the second end shell, and they are threaded together. Sealing flanges are installed on the outer sides of end shell one and end shell two, and the sealing flanges are in contact with each other and connected by bolts.

[0009] In a preferred embodiment of the present invention, a sealing gasket is provided at the end where end shell one abuts with end shell two and at the end where end shell two abuts with end shell one, for sealing the gap between end shell one and end shell two.

[0010] In a preferred embodiment of the present invention, a fixing spacer is installed on the outer periphery of the scale-inhibiting and bactericidal plate, and the outer side of the fixing spacer is in contact with the inner sidewalls of end shell one and end shell two. The fixing spacer has an annular protrusion in the middle of one side and an inwardly recessed annular groove in the middle of the other side. The protrusion of the fixing spacer is inserted into the groove of the adjacent fixing spacer, and a sealing gasket is provided in the groove, and the sealing gasket abuts against the inner wall of the groove and the protrusion.

[0011] In a preferred embodiment of the present invention, a support plate frame is installed on the inner wall of the ends of the first end shell and the second end shell that are far apart from each other, and the two ends of the scale-inhibiting and sterilizing rod are respectively inserted into the support plate frame in a circular shape. The support plate frame has through holes for connecting the water inlet or outlet.

[0012] In a preferred embodiment of the present invention, the fixed spacers at both ends are inserted into the inner wall of end shell one or end shell two near the inlet or outlet of the water inlet or outlet, and a sealing gasket is provided between them.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This scale inhibition and sterilization device installed in the reverse osmosis system works synergistically with a self-rotating scale inhibition and sterilization rod made of a specific composite alloy material and a scale inhibition and sterilization plate that forms a Z-shaped water channel. Without adding chemical agents, it achieves efficient physical scale inhibition and broad-spectrum sterilization by slowly releasing a variety of metal ions, thus solving the problems of secondary pollution and cost caused by traditional chemical methods.

[0014] 2. The scale inhibition and sterilization device installed in the reverse osmosis system uses the kinetic energy of the water flow to drive the impeller assembly, which drives the scale inhibition and sterilization rod to rotate continuously. On the one hand, it makes the release of metal ions more uniform and stable, avoiding local passivation; on the other hand, it disturbs the water flow, enhances the contact efficiency with water, and improves the scale inhibition and sterilization effect. Moreover, it does not require external power, making it energy-saving and environmentally friendly.

[0015] 3. The scale inhibition and sterilization device installed in the reverse osmosis system adopts a split threaded connection structure for the shell, and the internal components are connected to the slot through the protrusion of the fixing spacer. Multiple seals are set, which makes the device easy to install and disassemble, facilitates the replacement and maintenance of the internal scale inhibition and sterilization rod, and ensures the overall sealing reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure in the frontal cross-section of the present invention; Figure 3 This is a schematic diagram of the right-side cross-section of the structure in this invention; Figure 4 In this invention Figure 2 Schematic diagram of the structure at point A; Figure 5 In this invention Figure 2 Schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the impeller assembly in this invention; Figure 7 This is a schematic diagram of the impeller assembly from another perspective in this invention.

[0018] In the diagram: 1. Shell; 101. End shell one; 102. End shell two; 103. Sealing gasket one; 2. Connecting flange; 3. Sealing flange; 4. Support plate frame; 5. Scale-inhibiting and sterilizing rod; 6. Scale-inhibiting and sterilizing plate; 601. Water passage groove; 602. Fixing spacer; 7. Impeller assembly; 701. Main body; 702. Blade; 8. Sealing gasket two; 9. Sealing gasket three. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Figure 1-7 As shown, the present invention provides a scale inhibition and sterilization device installed in a reverse osmosis system, including a housing 1, the housing 1 having an inlet and an outlet, and a connecting flange 2 installed at the ends of the inlet and outlet of the housing 1 for connecting to the pipeline of the reverse osmosis system. Scale inhibition and sterilization plates 6 are axially evenly distributed on the inner wall of the housing 1, and the scale inhibition and sterilization plates 6 divide the interior of the connecting flange 2 into multiple compartments. A water channel 601 is axially penetrating the outer periphery of the scale-inhibiting and sterilizing plate 6. The water channels 601 between multiple scale-inhibiting and sterilizing plates 6 are staggered, and the water channels 601 between the scale-inhibiting and sterilizing plates 6 form a continuous Z-shaped water channel to extend the water flow path and contact time. A scale-inhibiting and sterilizing rod 5 is axially inserted between the scale-inhibiting and sterilizing plates 6, and the scale-inhibiting and sterilizing rod 5 passing through the water passage 601 can rotate.

[0021] Based on the above, the scale-inhibiting and sterilizing plate 6 and the scale-inhibiting and sterilizing rod 5 are made of composite alloy material, which includes zinc, copper, titanium, magnesium, silver and four auxiliary metals (denoted as metal A, metal B, metal C, and metal D; auxiliary metals can be nickel, chromium, zirconium, tin, etc., used to improve material stability and ion release efficiency). The weight percentage of each metal is as follows: zinc 15-25%, copper 10-20%, titanium 5-15%, magnesium 8-18%, silver 1-5%, and metals A, D, and D total 20-40%. The ratio of its surface area to the internal flow cross-sectional area of ​​the shell is 1:1.5-1:3, ensuring that the alloy material can slowly release metal ions when water flows through it. Working principle: The device is installed in the inlet pipe of the reverse osmosis system. When water flows through the inside of the shell 1, it is guided by the Z-shaped water path and comes into full contact with the scale-inhibiting and sterilizing plate 6 and the scale-inhibiting and sterilizing rod 5. Zinc and magnesium ions in the alloy material are slowly released into the water, which can effectively interfere with and inhibit the formation of scale-forming ions such as calcium and magnesium in the water into crystalline scale, thus playing a physical scale inhibition role. At the same time, after the release of copper and silver ions, they can destroy the cell membrane and enzyme system of microorganisms, achieving sterilization and bacteriostasis. The addition of titanium and auxiliary metals significantly improves the corrosion resistance of the alloy material and the long-term stability of ion release, ensuring that the device remains effective during long-term operation.

[0022] like Figure 1-7As shown, compared with the previous embodiment, the difference is that the scale-inhibiting and bactericidal rod 5 is in the shape of a circular rod, the center distance between the scale-inhibiting and bactericidal rods 5 is smaller than the diameter of the scale-inhibiting and bactericidal rod 5, the scale-inhibiting and bactericidal rods 5 are arranged in an alternating manner, and a tortuous gap is formed between the scale-inhibiting and bactericidal rods 5 to allow water to pass through. This dense and alternating arrangement further increases the contact area and disturbance between the water flow and the scale-inhibiting and bactericidal rods 5, and improves the efficiency of ion release and mixing.

[0023] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that the scale-inhibiting and sterilizing rod 5 is equipped with an impeller assembly 7 on the outer wall of the part of the water tank 601. The impeller assembly 7 is directly opposite the water inlet and can rotate under the impact of water flow, driving the scale-inhibiting and sterilizing rod 5 to rotate. This makes the scale-inhibiting and sterilizing rod 5 change from static operation to dynamic operation.

[0024] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that the impeller assembly 7 includes a main body 701 and blades 702; The center of the main body 701 is axially oriented and is mounted on the outer wall of the scale-inhibiting and sterilizing rod 5 by a set screw or interference fit. One side of the main body 701 is conical, and the conical side of the main body 701 faces the water inlet of the shell 1 to better guide and receive the impact of water flow; The main body 701 has a conical side with circumferentially distributed blades 702. The blades 702 are vortex-shaped. When the water flow impacts the vortex-shaped blades 702, it can more efficiently convert the linear kinetic energy of the water flow into the rotational kinetic energy of the impeller assembly 7 and the scale-inhibiting and sterilizing rod 5.

[0025] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that the housing 1 is composed of end shell 101 and end shell 102, which realizes the rapid assembly and disassembly of the housing; The end of end shell 2 102 near end shell 101 is sleeved on the outside of the end of end shell 101 near end shell 2 102, and they are threaded together. Sealing flanges 3 are installed on the outer side of end shell 101 and the outer side of end shell 2 102. The sealing flanges 3 are in contact with each other and are connected by bolts, providing a second layer of connection protection and sealing.

[0026] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that a sealing gasket 2 8 is provided at the end where end shell 101 abuts with end shell 2 102 and at the end where end shell 2 102 abuts with end shell 101, to seal the gap between end shell 101 and end shell 2 102 and prevent leakage.

[0027] like Figure 1-7As shown, compared with the previous embodiment, the difference is that a fixing spacer 602 is installed on the outer periphery of the scale-inhibiting and sterilizing plate 6 by welding or snap-fitting. The outer side of the fixing spacer 602 is in close contact with the inner sidewall of the first end shell 101 and the second end shell 102, which plays a role in positioning and radial sealing. The fixing spacer 602 has an annular protrusion in the middle of one side and an indented annular groove in the middle of the other side. The protrusion of the fixing spacer 602 is inserted into the groove of the adjacent fixing spacer 602 to achieve precise axial positioning and series fixation. A sealing gasket 9 is provided in the groove, and the sealing gasket 9 abuts against the inner wall of the groove and the protrusion to ensure the sealing between adjacent compartments.

[0028] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that the inner walls of the ends of end shell 101 and end shell 102 that are far apart from each other are fitted with a support plate frame 4 by welding or threading. The two ends of the scale-inhibiting and sterilizing rod 5 are respectively processed into circular journals and inserted into the corresponding bearings or shaft holes on the support plate frame 4 to achieve rotational support. The support plate frame 4 is provided with through holes to connect the water inlet or outlet to ensure smooth water flow. The support plate 4 has through holes for connecting the water inlet or outlet.

[0029] like Figure 1-7 As shown, compared with the previous embodiment, the difference is that the fixed spacers 602 located at both ends have their protrusions or grooves near the water inlet or outlet inserted into the corresponding grooves or protrusions on the inner wall of the first end shell 101 or the second end shell 102, and a sealing gasket 103 is provided between them, so as to achieve a reliable seal between the outermost end compartment and the inner wall of the shell.

[0030] In summary, the scale inhibition and sterilization device installed in the reverse osmosis system is connected in series to the inlet pipe of the reverse osmosis system via the connecting flange 2. Water flows into the device through the inlet and is guided by the Z-shaped water path, flowing through multiple compartments separated by scale inhibition and sterilization plates 6. During this process, the water flow impacts the impeller assembly 7, causing the scale inhibition and sterilization rods 5 to rotate continuously. The water flow makes full contact with the dynamic scale inhibition and sterilization rods 5 and the static scale inhibition and sterilization plates 6. The composite alloy material stably releases various ions such as zinc, magnesium, copper, and silver, which work together to inhibit scale and sterilize. The treated water enters the subsequent reverse osmosis membrane module through the outlet, thereby effectively protecting the membrane elements, extending the system life, and reducing operating and maintenance costs.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scale and bacteria killing device installed in a reverse osmosis system, comprising a shell (1), the shell (1) having a water inlet and a water outlet, the end of the water inlet and the water outlet of the shell (1) being provided with a connecting flange (2), characterized in that: The inner wall of the shell (1) is evenly distributed with scale and sterilization prevention plates (6) in the axial direction, which separate the inner part of the connecting flange (2) into multiple compartments; The outer periphery of the scale and sterilization prevention plates (6) is penetrated by water channels (601) in the axial direction, and the water channels (601) between the scale and sterilization prevention plates (6) form a continuous Z-shaped water path; The scale and sterilization prevention rods (5) are penetrated between the scale and sterilization prevention plates (6) in the axial direction, and the scale and sterilization prevention rods (5) penetrating the water channels (601) can rotate.

2. The scale and bacteria killing device installed in the reverse osmosis system according to claim 1, characterized in that: The scale and sterilization prevention rods (5) are circular rods, the distance between the centers of the scale and sterilization prevention rods (5) is less than the diameter of the scale and sterilization prevention rods (5), the scale and sterilization prevention rods (5) are arranged in a staggered manner, and a zigzag gap for water supply is formed between the scale and sterilization prevention rods (5).

3. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 2, characterized in that: The outer wall of the part of the scale and sterilization prevention rods (5) in the water channel (601) is provided with an impeller assembly (7), the impeller assembly (7) faces the water inlet, and can rotate under the impact of water flow and drive the scale and sterilization prevention rods (5) to rotate.

4. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 3, characterized in that: The impeller assembly (7) comprises a main body (701) and blades (702); The center of the main body (701) penetrates in the axial direction and is installed on the outer side wall of the scale and sterilization prevention rod (5); One side of the main body (701) is conical, and the conical side of the main body (701) faces the water inlet of the shell (1); The conical side of the main body (701) is provided with circumferentially distributed blades (702), and the blades (702) are in the shape of a spiral line.

5. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 4, characterized in that: The shell (1) is composed of an end shell one (101) and an end shell two (102); The end shell two (102) is sleeved on the outer side of the end of the end shell one (101) close to the end shell two (102), and is threadedly connected therebetween; The outer side of the end shell one (101) and the outer side of the end shell two (102) are provided with sealing flanges (3), the sealing flanges (3) are in contact with each other and are connected by bolts.

6. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 5, characterized in that: The ends of the end shell one (101) and the end shell two (102) abutting each other and the end of the end shell two (102) and the end shell one (101) abutting each other are provided with sealing washers two (8) for sealing the gap between the end shell one (101) and the end shell two (102).

7. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 6, characterized in that: The outer periphery of the scale and sterilization prevention plates (6) is provided with fixed partition rings (602), and the outer side of the fixed partition rings (602) is in contact with the inner side walls of the end shell one (101) and the end shell two (102); The middle of one side of the fixed partition ring (602) is provided with a ring-shaped protrusion, and the middle of the other side of the fixed partition ring (602) is provided with an inner recessed ring-shaped notch, the protrusion of the fixed partition ring (602) is inserted into the notch of the adjacent fixed partition ring (602), and a sealing washer three (9) is arranged in the notch, and the sealing washer three (9) abuts against the inner wall of the notch and the protrusion.

8. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 7, characterized in that: The inner wall of the distal end of the end shell one (101) and the end shell two (102) is provided with a support plate frame (4), and the two ends of the scale and bacteria killing rod (5) are circularly inserted into the support plate frame (4). A through hole is formed in the support plate frame (4) to communicate with the water inlet or the water outlet.

9. The scale and bacteria killing device mounted on the reverse osmosis system according to claim 8, characterized in that: The fixed spacer ring (602) at the two ends is inserted into the inner wall of the end shell one (101) or the end shell two (102) near the convex part or the slot of the water inlet or the water outlet, and a sealing washer one (103) is arranged between the two.

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