A scale inhibiting coating and a tubular scale inhibiting device

Abstract

The application discloses a scale-inhibiting coating and a tubular scale-inhibiting device, the scale-inhibiting coating is a composite coating, the composite coating is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, and the weight ratio of the components is (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5). The scale-inhibiting coating can be coated on the inner side wall of a pipeline, a steel pipe is used as a pipeline main structure and bears the function of conveying water flow, the composite coating is coated on the inner side wall of the steel pipe and is used for pipeline scale inhibition, pipeline corrosion prevention and pipeline abrasion reduction. Moreover, the coating has great strength and is resistant to water flow impact and abrasion.

Description

Technical Field

[0001] This invention relates to the field of tubular scale inhibition devices, and more specifically, to a tubular scale inhibition device. Background Technology

[0002] A tubular scale inhibitor is a device used for cleaning and inhibiting scale buildup in pipelines. It utilizes physical or chemical methods to remove deposits and dirt from the pipes, thereby keeping the pipelines unobstructed and extending their service life. Tubular scale inhibitors are mainly used at the inlet of equipment such as heat exchangers, boilers, water heaters, and membrane water purifiers to prevent scale buildup in the passing water.

[0003] Existing scale inhibition devices employ magnetic field inhibition, while others use electromagnetic inhibition, requiring external power and resulting in more complex structures. Some magnetic field scale inhibitors suffer from poor magnetic field penetration and scale inhibition, and the installation structure of the magnetic block in the pipe is often inadequate. Furthermore, the effectiveness of magnetic field inhibition is weak at high water flow rates. Using a combination of multiple scale inhibition methods would significantly improve the effect. In addition, existing tubular scale inhibitors have other shortcomings. In certain extreme water quality environments, even long scale inhibitors may not effectively prevent the accumulation of deposits and scale within the pipe, failing to achieve ideal scale inhibition results. They also have limited adaptability to different water qualities, making it difficult to select the appropriate number of scale inhibitor tubes based on varying water conditions, requiring more flexible adjustment methods. Finally, maintenance costs are high; existing scale inhibitors require component replacement, and the replacement process is cumbersome, leading to high maintenance costs. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide a tubular scale inhibition device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A scale inhibitor coating, wherein the scale inhibitor coating is a composite coating, the composite coating is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, and the weight ratio of each component is (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5).

[0007] Furthermore, the thickness of the scale-inhibiting coating is 0.5-1 mm.

[0008] A tubular scale inhibitor includes a steel pipe, the inner wall of which is coated with a coating, a rubber gasket is installed on the outer wall of which, a permanent magnet is installed outside the rubber gasket, and a cover plate is installed at the permanent magnet.

[0009] Furthermore, the rubber gasket is a cylindrical annular rubber gasket surrounding the steel pipe, and the cover plate is a cylindrical annular cover plate surrounding the permanent magnet; the cover plate is a plastic cover plate.

[0010] Thus, the rubber gasket and cover plate can completely surround the steel pipe and permanent magnet, thereby providing better protection and fixation.

[0011] Furthermore, the thickness of the rubber gasket is 5mm.

[0012] This provides a certain buffering and protective effect without significantly affecting the magnetic field of the permanent magnet.

[0013] Furthermore, the permanent magnet ensures that the magnetic field strength at the center of the steel pipe is between 0.1 and 0.3 T.

[0014] This can meet the scale inhibition requirements inside the steel pipe.

[0015] Furthermore, the permanent magnet may be in multiple pieces; or the permanent magnet may be a single piece in the shape of a toroidal cylinder.

[0016] Furthermore, the steel pipe has flange units at both ends.

[0017] This facilitates the connection between the device and the piping system.

[0018] Furthermore, the coating is a composite coating, which is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5).

[0019] Furthermore, the coating thickness is 0.5-1 mm.

[0020] Therefore, the performance characteristics of the coating can be adjusted according to the weight ratio of each component, thereby meeting the scale inhibition requirements of different water qualities.

[0021] This application also discloses a tubular scale inhibitor, including a sleeve, two end units, multiple scale inhibitor tubes, and multiple connecting units. One connecting unit is provided between two adjacent scale inhibitor tubes, and one connecting unit is provided between each end unit and its adjacent scale inhibitor tube. Each scale inhibitor tube includes two first flanges, a steel pipe connected between the two first flanges, a rubber sleeve enclosing the steel pipe, and multiple arc-shaped permanent magnets fixed to the outside of the rubber sleeve. A sealing ring is provided on the outside of each first flange. Each connecting unit includes a surrounding ring and a rubber ring fixed to the inner wall of the surrounding ring. Each scale inhibitor tube has two ends... Both are inserted into the surrounding ring and the sealing ring abuts against the rubber ring; the end unit includes an end flange, a first annular portion fixedly connected to the end flange, and a second annular portion fixedly connected to the first annular portion, the second annular portion being inserted into the surrounding ring and abutting against the rubber ring; the first annular portion has a first annular slot, both ends of the sleeve are respectively inserted into the first slots of the two end units, the end of the sleeve has an internal thread, and the first slot has an external thread that abuts against the internal thread; the first annular portion also has a locking bolt capable of locking the end positions of the end unit and the sleeve.

[0022] Furthermore, the inner wall of the steel pipe has a composite coating.

[0023] Furthermore, the composite coating is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5).

[0024] Furthermore, the coating thickness is 0.5-1 mm;

[0025] Furthermore, it also includes an outer casing tube, which is a steel pipe and has multiple through holes; an annular rubber protrusion is fixed at the end flange, and the annular rubber protrusion has an annular second slot, and the two ends of the outer casing tube are respectively inserted into the second slots of the two end units.

[0026] Therefore, the outer shell tube can provide better protection and support, while also serving as an isolation and shield.

[0027] Furthermore, the outer casing tube has a strip-shaped through groove, a water receiving shell is installed in the strip-shaped through groove, and a detection unit is installed at the bottom of the water receiving shell. The detection unit includes a controller, a liquid sensor located inside the water receiving shell, and an indicator light located outside the water receiving shell.

[0028] Therefore, by monitoring the water inlet shell with a liquid sensor, an alarm can be triggered. When the liquid sensor detects liquid in the water inlet shell, an indicator light will illuminate to remind the operator to perform the appropriate handling and maintenance.

[0029] Furthermore, the outer casing is cylindrical, and both the outer casing and the water inlet shell are made of plastic.

[0030] Therefore, the outer casing and water inlet casing have advantages such as corrosion resistance, light weight, and easy installation.

[0031] Furthermore, the water receiving shell includes two side plates, two water receiving inclined plates, and a horizontal receiving plate connecting the two water receiving inclined plates.

[0032] Thus, the two inclined plates can guide the incoming liquid and smoothly guide it into the horizontal plate, thereby facilitating detection by the detection unit.

[0033] Furthermore, the outer wall of the rubber sleeve has multiple receiving grooves, and a permanent magnet is fixed in each receiving groove; the outer diameter of the permanent magnet is equal to the inner diameter of the surrounding ring.

[0034] Therefore, the outer diameter of the permanent magnet is equal to the inner diameter of the surrounding ring, which can achieve good fit and sealing.

[0035] Furthermore, there are 3 scale-inhibiting tubes and 5 connecting units.

[0036] This allows the connecting units to achieve a stable connection.

[0037] Beneficial effects:

[0038] 1. The tubular scale inhibitor of this application allows for selection of the number of scale inhibitor tubes to be used according to different application scenarios and water quality, thereby meeting the scale inhibition requirements under different water quality conditions, and facilitating the replacement of permanent magnets, thus making it easier to maintain and service it.

[0039] 2. The tubular scale inhibitor of this application has a composite coating on the inner wall of the steel pipe. The addition of the coating improves its scale removal principle and effect compared to scale inhibitors that only have a magnetic field. This application utilizes the presence of ferrite and cuprous oxide to strongly prevent scale-forming ions from combining, thus achieving scale inhibition. Compared to traditional magnetic scale removal, which uses a magnetic field to act on substances such as iron, rust, and verdigris in the water, causing them to form suspended aggregates in the water, and then removing them through a filter, this method has a better scale inhibition effect.

[0040] 3. The tubular scale inhibitor of this application connects the connecting unit, end units, and scale inhibitor tube via sleeves threadedly tightened to the two end units, ensuring tight contact between the components. This facilitates installation, achieves a seal, and effectively prevents water leakage. 4. The tubular scale inhibitor of this application monitors the water tank via a detection unit, enabling an alarm. When the liquid sensor detects liquid in the water tank, an indicator light illuminates to alert the operator for appropriate handling and maintenance, thereby improving the safety of the scale inhibitor. Attached Figure Description

[0041] Figure 1 This is a first-view sectional view of Example 2;

[0042] Figure 2 This is a second-view sectional view of Example 2;

[0043] Figure 3 This is a first-view schematic diagram of component separation in Example 3;

[0044] Figure 4 This is a magnified view of region A;

[0045] Figure 5 This is a magnified view of region B;

[0046] Figure 6 This is a magnified view of region C;

[0047] Figure 7 This is a schematic diagram of the second perspective of component separation in Example 3;

[0048] Figure 8 This is a schematic diagram of the permanent magnet installation in Example 3;

[0049] Figure 9 This is a schematic diagram of the installation of the connection unit and end unit in Embodiment 3;

[0050] Figure 10 This is a schematic diagram of the overall structure of Example 3. Reference numerals: 1. Sleeve; 1.1 Internal thread; 1.2 Through hole; 2. End unit; 2.1 End flange; 2.2 First annular portion; 2.2.1 First slot; 2.2.2 External thread; 2.3 Second annular portion; 2.5 Rubber protrusion; 2.5.1 Second slot; 2.4 Locking bolt; 3. Scale inhibitor tube; 3.1 First flange; 3.1.1 Sealing ring; 3.2 Steel pipe; 3.3 Rubber sleeve; 3.3.1 Receiving groove; 3.4 Permanent magnet; 4. Connecting unit; 4.1 Enclosing ring; 4.2 Rubber ring; 5. Outer shell tube; 6. Water inlet shell; 6.1 Liquid sensor; 6.2 Indicator light; 3.2.1 Composite coating; 3.2.2 Rubber gasket; 3.2.3 Flange unit; 3.5 Cover plate. Detailed Implementation

[0051] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0052] Example 1

[0053] A scale-inhibiting coating is a composite coating composed of cuprous oxide, ferrite, molecular sieve, silicon carbide, and an adhesive, wherein the weight ratio of each component is (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5). The scale-inhibiting coating has a thickness of 0.5-1 mm.

[0054] For water with different hardness levels (high, medium, and low), when preparing composite coatings, the proportion of cuprous oxide and molecular sieves is increased for high-hardness water, while the proportion of both is appropriately reduced for medium- and low-hardness water. The appropriate proportions of other substances are also adjusted to meet the above-mentioned ratio.

[0055] The presence of cuprous oxide in the coating material can hinder the combination of calcium ions, magnesium ions and carbonate ions in water under the magnetic field of the applied permanent magnet, making it difficult for them to combine into calcium carbonate or magnesium carbonate, etc.

[0056] When ferrite is placed in the magnetic field of an external permanent magnet, it generates a uniform magnetic field that magnetizes the water flow. This magnetizes the water molecules in the water, causing them to form hydrates. Under the influence of these hydrates, the small amounts of calcium carbonate and magnesium carbonate particles that form in the water are effectively prevented from accumulating into scale.

[0057] The presence of molecular sieves can effectively absorb oxygen molecules in water, reduce water flow corrosion of pipes, and extend the service life of the device.

[0058] Silicon carbide is an excellent wear-resistant material that can enhance the strength of coating materials and their resistance to water flow impact and wear.

[0059] Example 2

[0060] like Figure 1-2As shown, this embodiment provides a tubular scale inhibitor device, including a steel pipe 3.2. The inner wall of the steel pipe is coated with a coating, and a rubber gasket 3.2.2 is installed on the outer wall of the steel pipe. A permanent magnet 3.4 is installed outside the rubber gasket, and a cover plate 3.5 is installed at the permanent magnet. The rubber gasket is a cylindrical annular rubber gasket surrounding the steel pipe, and the cover plate is a cylindrical annular cover plate surrounding the permanent magnet; the cover plate is a plastic cover plate. The thickness of the rubber gasket is 5mm; the permanent magnet ensures that the magnetic field strength at the center of the steel pipe is between 0.1-0.3T; there are multiple permanent magnets; or the permanent magnet is a single cylindrical annular magnet. The two ends of the steel pipe have flange units 3.2.3. The coating is a composite coating 3.2.1, which is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5); the coating thickness is 0.5-1 mm.

[0061] Working principle: In this application, the tubular scale inhibitor device uses a steel pipe as the main structure to transport water. A composite coating is applied to the inner wall of the steel pipe to inhibit scale growth, prevent corrosion, and reduce wear. Rubber gaskets are installed on the outer wall of the steel pipe to provide cushioning and protection, reducing the impact of the external environment on the pipe. A cover plate surrounds the permanent magnet and the steel pipe, thereby fixing the permanent magnet in place.

[0062] The composite coating is a substance composed of cuprous oxide, ferrite, molecular sieve, silicon carbide, and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5). For water with high, medium, and low hardness, the proportion of cuprous oxide and molecular sieve in the coating is increased for high-hardness water, and appropriately reduced for medium- and low-hardness water. The proportions of other substances are adjusted to meet the above ratio. The prepared coating material is uniformly applied to the inner wall of the steel pipe, with a coating thickness of 0.5-1 mm. After coating, the entire pipe is placed in an electric furnace for heating and curing. The furnace temperature is controlled at 400-450°C, and the heating time is controlled at 5-10 minutes. After curing, the pipe is naturally cooled to room temperature, and then a 5 mm thick rubber gasket is applied. A permanent magnet is installed outside the gasket to ensure that the magnetic field strength at the center of the pipe reaches 0.1-0.3 T. The permanent magnet is fixed with a plastic cover plate.

[0063] When water flows through this device: 1. The presence of cuprous oxide in the coating material can hinder the combination of calcium ions, magnesium ions, and carbonate ions in the water under the magnetic field of the external permanent magnet, making it difficult for them to combine into calcium carbonate or magnesium carbonate, etc.; 2. Ferrite generates a uniform magnetic field under the magnetic field of the external permanent magnet, magnetizing the water flow and causing water molecules in the water to form hydrates. Under the action of the hydrates, it effectively prevents the small amount of calcium carbonate and magnesium carbonate particles formed in the water from agglomerating into scale; 3. The presence of molecular sieves can effectively absorb oxygen molecules in the water, reduce the corrosion of pipes by water flow, and improve the service life of this device; 4. Silicon carbide is an excellent wear-resistant material, which can enhance the strength of the coating material and its resistance to water flow impact and wear.

[0064] Example 3

[0065] like Figure 3-10As shown, this embodiment provides a tubular scale inhibitor, including a sleeve 1, two end units 2, multiple scale-inhibiting tubes 3, and multiple connecting units 4. A connecting unit 4 is provided between two adjacent scale-inhibiting tubes 3, and a connecting unit 4 is provided between each end unit 2 and its adjacent scale-inhibiting tube 3. The scale-inhibiting tube 3 includes two first flanges 3.1, a steel pipe 3.2 connected between the two first flanges 3.1, a rubber sleeve 3.3 wrapping the steel pipe 3.2, and multiple arc-shaped permanent magnets 3.4 fixed to the outside of the rubber sleeve 3.3. A sealing ring 3.1.1 is provided on the outside of the first flange 3.1. The inner wall of the steel pipe 3.2 has a composite coating, which is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide, and an adhesive, with a weight ratio of (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5): (4-5); the coating thickness is 0.5-1mm; the connecting unit 4 includes a surrounding ring 4.1 and a rubber ring 4.2 fixed to the inner wall of the surrounding ring 4.1, both ends of each scale-inhibiting tube 3 are inserted into the surrounding ring 4.1 and the sealing ring 3.1.1 abuts against the rubber ring 4.2; the end unit 2 includes an end flange 2.1, a first annular portion 2.2 fixedly connected to the end flange 2.1 and a second annular portion 2.3 fixedly connected to the first annular portion 2.2, the second annular portion 2.3 is inserted into the surrounding ring 4.1 and abuts against the rubber ring 4.2; the first annular portion 2.2 has a first annular slot 2.2.1, both ends of the sleeve 1 are respectively inserted into the first slots 2.2.1 of the two end units 2, the end of the sleeve 1 has an internal thread 1.1, and the first slot 2.2.1 has an external thread 2.2.2 that abuts against the internal thread 1.1. The first annular portion 2.2 also has a locking bolt 2.4 capable of locking the end positions of the end unit 2 and the sleeve 1. The scale inhibitor also includes an outer shell tube 5, the sleeve 1 being a steel pipe, the sleeve 1 having multiple through holes 1.2; an annular rubber protrusion 2.5 is fixed at the end flange 2.1, the annular rubber protrusion 2.5 having an annular second slot 2.5.1, the two ends of the outer shell tube 5 being respectively inserted into the second slots 2.5.1 of the two end units 2. The outer shell tube 5 has a strip-shaped through groove, a water receiving shell 6 is installed in the strip-shaped through groove, a detection unit is installed at the bottom of the water receiving shell 6, the detection unit including a controller, a liquid sensor 6.1 located inside the water receiving shell 6, and an indicator light 6.2 located outside the water receiving shell 6; the outer shell tube 5 is an annular cylindrical shape, and both the outer shell tube 5 and the water receiving shell 6 are made of plastic; the water receiving shell 6 includes two side plates, two water receiving inclined plates, and a horizontal connecting plate connecting the two water receiving inclined plates. The outer wall of the rubber sleeve 3.3 has a plurality of receiving grooves 3.3.1, and a permanent magnet 3.4 is fixed at each receiving groove 3.3.1. The outer diameter of the permanent magnet 3.4 is equal to the inner diameter of the surrounding ring 4.1.There are 3 scale-inhibiting pipes 3 and 5 connecting units 4.

[0066] Working Principle: The tubular scale inhibitor of this application, depending on the application scenario and water quality, exhibits better scale inhibition effect with longer lengths. Compared to Example 2, the scale inhibitor in Example 3 allows for selection of the number of scale-inhibiting tubes used (of course, the specifications of the sleeve and outer casing must match the number of scale-inhibiting tubes; the remaining end units, connecting units, and scale-inhibiting tubes are universal), thus enabling flexible selection to adapt to different water qualities. It also facilitates the replacement of the permanent magnet. The connecting unit, end units, and scale-inhibiting tubes are connected by a sleeve screwed onto two end units, thereby achieving a seal between the components. Theoretically, there is no liquid inside the water inlet shell. To improve the safety of the scale inhibitor, a detection unit monitors the water inlet shell, enabling an alarm (the water inlet shell is positioned downwards during installation). When liquid is present in the water inlet shell, the controller indicator light illuminates to remind the operator to perform appropriate handling and maintenance. Although the preferred embodiments of this invention have been illustrated and described, those skilled in the art should understand that various changes and modifications can be made to this invention without departing from the scope defined by the claims.

Claims

1. A scale-inhibiting coating, characterized in that, The scale inhibitor coating is a composite coating, which is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5).

2. A tubular scale inhibition device, characterized in that, The device includes a steel pipe, the inner wall of which is coated with a coating, a rubber gasket installed on the outer wall of which a permanent magnet is installed outside the rubber gasket, and a cover plate installed at the permanent magnet. The coating is a composite coating, which is composed of cuprous oxide, ferrite, molecular sieve, silicon carbide and an adhesive, with the weight ratio of each component being (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5).

3. The tubular scale inhibitor device according to claim 2, characterized in that, The rubber gasket is a cylindrical annular rubber gasket surrounding the steel pipe, and the cover plate is a cylindrical annular cover plate surrounding the permanent magnet; the cover plate is a plastic cover plate.

4. The tubular scale inhibitor device according to claim 2, characterized in that, The thickness of the rubber gasket is 5mm; the permanent magnet makes the magnetic field strength at the center of the steel pipe between 0.1-0.3T; there are multiple permanent magnets; or the permanent magnet is a single ring-shaped cylinder.

5. The tubular scale inhibitor device according to claim 2, characterized in that, The steel pipe has flange units at both ends.

6. The tubular scale inhibitor device according to claim 2, characterized in that, The coating thickness is 0.5-1mm.

7. A tubular scale inhibitor, characterized in that, The device includes a sleeve, two end units, multiple scale-inhibiting tubes, and multiple connecting units. A connecting unit is provided between two adjacent scale-inhibiting tubes, and a connecting unit is provided between each end unit and its adjacent scale-inhibiting tube. Each scale-inhibiting tube includes two first flanges, a steel pipe connected between the two first flanges, a rubber sleeve enclosing the steel pipe, and multiple arc-shaped permanent magnets fixed to the outside of the rubber sleeve. A sealing ring is provided on the outside of each first flange. The inner wall of the steel pipe has a composite coating composed of cuprous oxide, ferrite, molecular sieve, silicon carbide, and an adhesive, with a weight ratio of (1.5-2.5):(0.5-1.5):(2-2.5):(1.0-1.5):(4-5). The coating thickness is 0.5-1mm; the connecting unit includes a surrounding ring and a rubber ring fixed to the inner wall of the surrounding ring, both ends of each scale-inhibiting tube are inserted into the surrounding ring and the sealing ring abuts against the rubber ring; the end unit includes an end flange, a first annular portion fixedly connected to the end flange, and a second annular portion fixedly connected to the first annular portion, the second annular portion is inserted into the surrounding ring and abuts against the rubber ring; the first annular portion has a first annular slot, both ends of the sleeve are respectively inserted into the first slots of the two end units, the end of the sleeve has an internal thread, and the first slot has an external thread that abuts against the internal thread; the first annular portion also has a locking bolt that can lock the end positions of the end unit and the sleeve.

8. The tubular scale inhibitor according to claim 7, characterized in that, It also includes an outer casing tube, which is a steel pipe and has multiple through holes; an annular rubber protrusion is fixed at the end flange, and the annular rubber protrusion has an annular second slot, and the two ends of the outer casing tube are respectively inserted into the second slots of the two end units.

9. The tubular scale inhibitor according to claim 8, characterized in that, The outer casing has a strip-shaped through groove, and a water receiving shell is installed in the strip-shaped through groove. A detection unit is installed at the bottom of the water receiving shell. The detection unit includes a controller, a liquid sensor located inside the water receiving shell, and an indicator light located outside the water receiving shell. The outer casing is annular cylindrical, and both the outer casing and the water receiving shell are made of plastic. The water receiving shell includes two side plates, two water receiving inclined plates, and a horizontal receiving plate connecting the two water receiving inclined plates.

10. The tubular scale inhibitor according to claim 7, characterized in that, The outer wall of the rubber sleeve has multiple receiving grooves, and a permanent magnet is fixed in each receiving groove; the outer diameter of the permanent magnet is equal to the inner diameter of the surrounding ring.

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