Composite anti-scaling method and tool combining anti-scaling alloy and magnetic field

Abstract

The invention discloses an anti-scaling alloy and magnetic field combined composite anti-scaling method and tool, and relates to the field of anti-scaling, anti-corrosion and anti-wax of circulating systems and the field of anti-scaling and anti-corrosion of alloys. The anti-scaling device is composed of anti-scaling alloy sheets and strong magnets and is installed and filled at a time, the outer diameter, the inner diameter, the number and the interval of the anti-scaling device can be changed along with a circulating system, and therefore the anti-scaling performance is optimized. According to the method, an anti-scaling alloy element and a magnetic field generating device are organically combined, the slow-release ion effect of alloy and the physical effect of a magnetic field are exerted at the same time in the fluid flowing process, collision of scaling ions is hindered, the adhesive force of micro-scale crystals is reduced, the scaling phenomenon in fluid is effectively inhibited or prevented, and the anti-scaling efficiency and the system operation stability are improved; meanwhile, when the method and the tool are used, extra energy consumption is not needed, and the method and the tool are environmentally friendly, long in service life and easy to install and maintain and have a good anti-scaling effect in a high-salinity circulating system.

Description

Technical Field

[0001] The invention discloses a composite anti-scaling method and a tool combining an anti-scaling alloy with a magnetic field, and relates to the field of anti-scaling, anti-corrosion and anti-wax in a circulation system and the technical field of alloy anti-scaling and anti-corrosion. Background Art

[0002] In industrial production and daily life, measures to increase the reuse rate of water are usually adopted to achieve the purpose of reducing industrial water consumption and industrial wastewater, which plays a role in saving water resources and protecting the environment. However, many fluid circulation systems such as heat exchange systems, water pipelines, petrochemical pipelines, etc., often face serious scaling problems on the metal walls of the circulation system due to the continuous changes in the quality of circulating water during long-term operation. Specifically, when calcium and magnesium ions in water are heated or react with other substances, they easily form insoluble salts such as calcium carbonate and magnesium hydroxide, which precipitate on the inner wall of the pipeline and the surface of the equipment, leading to pipeline blockage, reduced heat exchange efficiency, increased production energy consumption, increased equipment wear, and local corrosion of the metal, reducing the service life of equipment and pipelines, and even causing pipeline ruptures, resulting in huge economic and property losses.

[0003] In actual production, due to changes in pressure, temperature, pH and other factors, the concentration of scale-forming ions in the fluid inside the circulation system continues to increase, increasing the tendency of scaling. As the aggregation tendency of slightly soluble and insoluble salt ions in the fluid increases, various scale-forming ions in the fluid inside the circulation system collide with each other under the action of thermodynamics to react chemically to form scale attached to the surface of the equipment. This type of scale is generally calcium carbonate scale, magnesium carbonate scale, calcium sulfate scale, etc. Its formation process can be divided into three basic stages. The first is the "oversaturation stage". After supersaturation, nano-scale dissolved salt clusters begin to form nuclei. Once they mature to a critical size, the nuclei become stable. This stage is called "nucleus formation". The final stage of crystallization is called "crystal growth", which grows into different crystal structures. When the solute in the fluid of the circulation system reaches saturation, the anions and cations in the solution collide with each other to form electron pairs. Subsequently, they aggregate to form aggregates, which become the center of nucleation. These aggregates continue to aggregate or adsorb to the solid surface to form larger microcrystals. As the crystals continue to accumulate and further adsorb scaling ions, the formed microcrystals continue to grow, and scale begins to form on the surface of the material. When the fluid washes away some scale during the flow process, other scale will continue to form and eventually affect the equipment.

[0004] Therefore, scaling in the circulation system, especially the closed circulation system, will directly affect production efficiency, cause a large amount of energy loss, and increase the number of maintenance times, becoming an important factor in pushing up the cost of the circulation system.

[0005] At present, the existing anti-scaling methods include chemical anti-scaling method and physical anti-scaling method. The chemical anti-scaling method plays an anti-scaling role by adding chemical reagents, but the amount of chemical reagents used is large and the cost is high. At the same time, it will pollute the environment and cause water quality problems. The physical anti-scaling method currently used mainly includes ultrasonic anti-scaling technology, electromagnetic anti-scaling technology and coating anti-scaling technology. By using electromagnetic, sound waves and radiation and other means, the scaling parts are vibrated to make the scale loose or fall off, or change the formation environment of insoluble scale salts, thereby changing the physical and chemical properties of scale crystals to hinder the crystallization and precipitation of scale and achieve the purpose of descaling. Although this type of anti-scaling method is more environmentally friendly, the anti-scaling effect is not stable and significant in some cases. At the same time, it has certain requirements on the environment, the equipment maintenance cost is high, and its application and promotion are subject to certain restrictions.

[0006] Therefore, we designed a composite anti-scaling method and tool that combines anti-scaling alloy with magnetic field. Combining the advantages of alloy anti-scaling and magnetic field anti-scaling, it improves the anti-scaling effect while reducing costs. It can adapt to a variety of environments and meet the anti-scaling needs of different circulation systems. Summary of the invention

[0007] The object of the present invention is to provide a composite anti-scaling method and tool combining an anti-scaling alloy with a magnetic field, so as to enhance and stabilize the anti-scaling effect of the anti-scaling alloy in a circulation system.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite anti-scaling method and tool combining an anti-scaling alloy with a magnetic field, the components of which are an anti-scaling alloy and a strong magnet. The anti-scaling alloy and the strong magnet are installed and filled in at one time, and their outer diameter, inner diameter, number and spacing can be changed according to the pipeline diameter and the tool, thereby optimizing the performance of the anti-scaling tool. When the fluid passes through the circulation system, due to the contact between the fluid and the anti-scaling alloy tool, countless tiny primary cells are formed on the alloy, and a micro-area electric field is generated inside the solution to hinder the collision between scale-forming ions. At the same time, the external magnetic field provided by the strong magnet changes the movement trend of the scale-forming ions and hinders the formation of scale; and the anti-scaling alloy can change the crystal morphology of the scale, and the external magnetic field can reduce the adhesion of the scale, making it easy to fall off in the circulation system to achieve an anti-scaling effect.

[0009] Further, the anti-scaling alloy sheet has a diameter of Ф40mm-Ф100mm;

[0010] Further, the anti-scaling alloy sheet has a thickness of 5 mm to 20 mm;

[0011] Furthermore, the diameter of the holes in the anti-scaling alloy sheet is Ф4mm-Ф10mm;

[0012] Furthermore, the number of holes in the anti-scaling alloy sheet is 20-80, the number is adjusted according to actual requirements, the whole sheet is penetrated, and the holes are evenly distributed along the circumference;

[0013] Further, the anti-scaling alloy is cast into a rod shape, sliced ​​horizontally, and punched vertically;

[0014] Furthermore, the anti-scaling alloy is composed of elements such as copper, zinc, nickel, and tin, and has excellent anti-scaling properties;

[0015] Furthermore, the length of the bar-shaped strong magnet is 50 mm-120 mm;

[0016] Furthermore, the number of bar-shaped strong magnets is 6-10 pieces, and the number is adjusted according to actual requirements, and they are evenly distributed along the circumference of the cylindrical shell;

[0017] Furthermore, the same magnetic poles of the two oppositely placed strong magnets face each other.

[0018] Compared with the existing anti-scaling technology, the advantages of the present invention are:

[0019] This method combines alloy anti-scaling with magnetic anti-scaling, which can stabilize and enhance the anti-scaling effect of alloy anti-scaling, and at the same time simplify the complex instruments required for magnetic anti-scaling, provide a wider range of uses for magnetic anti-scaling, and improve the applicability of alloy anti-scaling and magnetic anti-scaling. In addition, the number, spacing, inner and outer diameters of alloy anti-scaling sheets and strong magnets can be adjusted according to actual production conditions to optimize the anti-scaling performance. This method organically combines the alloy anti-scaling element with the magnetic field generating device, and simultaneously exerts the slow-release ion effect of the alloy and the physical effect of the magnetic field during the fluid flow process, effectively inhibiting or preventing scaling in the fluid, and improving the anti-scaling efficiency and system operation stability. At the same time, when the method and tool are used, no additional energy consumption is required, and they are green and environmentally friendly, have a long service life, are easy to install and maintain, and have a good anti-scaling effect in a circulation system with a high mineralization degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the anti-scaling tool;

[0021] Figure 2 is a microscopic SEM picture of scale formed in a fluid that has not been treated with the anti-scaling tool;

[0022] Figure 3 It is a microscopic SEM picture of scale formed in the fluid treated by the anti-scaling tool. Specific implementation methods

[0023] The present invention is further described below in conjunction with the accompanying drawings. At the same time, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, the parameters of each component of the tool are as follows: the number of anti-scaling alloy sheets is 6, the size is Ф60mm*8mm, the number of holes is Ф10mm*19, the number of strong magnets is 6 (such as Figure 1 ). The scale formation was compared after 5 days of circulation in a high-mineralization fluid. The microscopic morphology of the scale was observed by electron microscopy ( Figure 2 , Figure 3 ). The anti-scaling rate of the device reaches 85.9033%.

[0026] Example 2

[0027] A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, the parameters of each component of the tool are as follows: the number of anti-scaling alloy sheets is 6, the size is Ф60mm*8mm, the number of holes is Ф10mm*19, and the number of strong magnets is 4. It was circulated in a high-mineralization fluid for 5 days to compare the scaling. The microscopic morphology of the scale was observed by electron microscope. The anti-scaling rate of the device reached 69.6732%.

[0028] Comparative Example 1

[0029] A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, the parameters of each component of the tool are as follows: the number of strong magnets is 6, and no anti-scaling alloy sheet is placed. The scale formation is compared after 5 days of circulation in a fluid with high mineralization. The microscopic morphology of the scale is observed by electron microscope. The anti-scaling rate of the device reaches 66.2082%.

[0030] Comparative Example 2

[0031] A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field. The parameters of each component of the tool are as follows: the number of anti-scaling alloy sheets is 6, the size is Ф60mm*8mm, the number of holes is Ф10mm*19, and no bar magnet is placed. It was circulated in a high-mineralization fluid for 5 days to compare the scaling. The microscopic morphology of the scale was observed by electron microscope. The anti-scaling rate of the device reached 36.0453%

[0032] The anti-scaling alloy sheet is loaded into the shell, and a strong magnet is fixed on the outside, and connected to the circulation system. When the water flow is sucked in, it first contacts the anti-scaling alloy, and the alloy releases metal cations. A part of the metal cations will preferentially combine with the scale-forming anions, so that the calcium and magnesium particles in the water cannot combine with them, thereby hindering the precipitation of scale; a part of the cations will be adsorbed to the site during the scale growth stage, thereby changing the structure of the crystal, so that it can become soft scale and be quickly carried away by the water flow. During the flow process, the physical effect of the magnetic field will also guide the movement direction of the scale-forming ions in the fluid, hinder the combination of scale-forming anions and cations, and improve the anti-scaling efficiency. In addition, the method and tool can change the inner and outer diameters, quantity and spacing of the anti-scaling alloy sheet and the strong magnet according to the actual production situation, so as to optimize the anti-scaling performance. At the same time, the tool is installed and filled once, and can prevent scale without using any material input and consuming any energy. It can fundamentally solve the serious damage to the water circulation system and pipelines caused by the corrosion reaction of chemical agents and the serious pollution to the environment.

Claims

1. A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, characterized in that: The alloy used is an anti-scaling alloy composed of multiple elements such as copper, zinc, nickel, tin, etc.

2. A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, characterized in that: The magnetic field is provided by a strong magnet.

3. A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, characterized in that: The magnetic field strength is between 1000-3000 Gauss, and the magnetic field direction forms an angle of 0-180 degrees with the fluid flow direction.

4. A composite anti-scaling method and tool combining anti-scaling alloy and magnetic field, characterized in that: The tool can be used individually or in series, and can be equipped with different numbers of strong magnets to provide excellent anti-scaling function.

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