Antiscaling alloy

An alloy and anti-scaling technology, applied in the field of anti-scaling, can solve the problems of ineffective softening, time-consuming and labor-intensive efficiency of descaling, decrease in thermal efficiency, etc., so as to solve the problem of extra energy consumption or pollutant discharge, low price, and forming a trend reduced effect

Inactive Publication Date: 2009-09-23

INST OF METAL RESEARCH - CHINESE ACAD OF SCI

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AI-Extracted Technical Summary

Problems solved by technology

Where there is water, there is scale. From boilers to pipelines and valves, the formation of scale will cause a decrease in thermal efficiency, increase energy consumption, blockage of pipelines and failure of valves, so descaling operations must be carried out frequently

[0004] Descaling is a time consuming and inefficient operation

The use of softened water is an effective means of anti-scaling, but under the condition of...

Method used

[0035] The anti-fouling alloy is specifically used in a powder state, and is installed in a special tank. Because the powder has a huge surface area, when water flows through the tank, it has sufficient contact with the powdery anti-fouling alloy. Through the electrochemical effect between the powdered anti-scaling alloy and water, the anti-scaling alloy releases a large number of electrons to improve the solubility of the scaling ions in the water.

[0043] Different from Example 1, the ...

Abstract

The invention provides an antiscaling alloy, which is characterized by comprising the following compositions by weight percentage: 7 to 25 percent of Ni, 15 to 45 percent of Cu, 6 to 20 percent of Zn, 3 to 8 percent of Ti, 0.1 to 0.6 percent of V, 2 to 10 percent of Cr, 1 to 6 percent of Mn and the balance of Fe. In the using process, the antiscaling alloy only has the catalyzing function, and is not consumed, so the antiscaling alloy can be used for a long time, and has convenient use and low price; and the antiscaling alloy has the advantages of antiscaling, high efficiency, environmental protection and the like, and has foreseeable enormous economic and social values.

Technology Topic

Alloy

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Examples

Experimental program(5)

Example Embodiment

[0030] Example 1

[0031] An anti-fouling alloy, the alloy composition is shown in Table 1 by weight percentage;

[0032] Table 1

[0033] C

[0034] The anti-scaling alloy is applied to the header pipe of a heating furnace in a certain water system, and samples are taken at the inlet and outlet respectively, and the flow rate is 5000m. 3 /sky.

[0035] The anti-scaling alloy is used in powder form and is installed in a special tank. Due to the huge surface area of the powder, when the water flows through the tank, it has sufficient contact with the powdered anti-scaling alloy. Through the electrochemical effect between the powdered antifouling alloy and water, the antifouling alloy releases a large number of electrons to improve the solubility of the scale-forming ions in the water.

[0036] The experimental data are shown in Table 2: due to the electrochemical action of the alloy, despite the large temperature rise process, the Mg 2+ , SO 4 2- , CO 3 2- and Ca 2+ The concentrations of other scale-forming ions all increased, with an increase of more than 20%, indicating that the solubility of insoluble or slightly soluble salts in the water quality has improved, that is, it has a better anti-scaling function.

[0037] Table 2

[0038]

Example Embodiment

[0039] Example 2

[0040] An anti-fouling alloy, the alloy composition is shown in Table 3 by weight percentage:

[0041] table 3

[0042] C

[0043] Unlike Example 1, the anti-fouling alloy was used in a porous form, not in a powder state. The anti-fouling device is a tank body equipped with alloy porous blades. During use, the blades rotate and fully contact the liquid flowing through the tank body. The alloy anti-scaling device is installed on the header pipe of the heating furnace of the water system. Through the electrochemical effect between the alloy and water, the alloy releases a large number of electrons to improve the solubility of scaling ions in water.

[0044] The experimental data are shown in Table 4: due to the electrostatic catalysis of the alloy, despite the large temperature rise process, the Mg 2+ , SO 4 2- , CO 3 2- and Ca 2+ The concentrations of all have increased, and the increase rate is more than 20%. It shows that the dissolving ability of insoluble or slightly soluble sulfate in water quality is improved, that is, it has obvious anti-scaling function.

[0045] Table 4

[0046]

Example Embodiment

[0047] Example 3

[0048] An antifouling alloy, its main features are as follows:

[0049] 1) an antifouling alloy, the specific composition and the weight percentage of each component are as follows:

[0050] Ni: 16%, Cu: 30%, Zn: 15%, Ti: 5%, V: 0.4%, Cr: 6%, Mn: 4%, B: 0.1%, any of La, Ce, Pr, Nd One or its combination: 0.3%, Sn: 0.2%, C≤0.10%, Si: 0.5%, Fe: balance.

[0051]2) The specific form of the anti-fouling alloy is one of the following or a combination thereof: powder, granule, spherical, porous plate, and a layer sprayed on the surface of other materials. The particle size of powder is required to be about 0.9 to 20 mm; the particle size of granular is required to be about 1.5 mm, and the particle size of spherical is required to be about 8 mm.

[0052] When the used state of the anti-fouling alloy is mainly powder, a filter screen is installed at the outlet or/and the inlet of the anti-fouling device for containing the anti-fouling alloy. The pore size of the mesh is smaller than the minimum particle size of the alloy powder.

[0053] In the actual use process, the total surface area of the anti-fouling alloy should be compatible with the liquid flow rate or/and the quality of the liquid. The larger the total surface area, the smaller the required amount of alloy.

[0054] 3) The use method of the anti-scaling alloy is as follows: using the anti-scaling alloy as a working medium, placing the anti-scaling alloy in an anti-scaling device, and then connecting the anti-scaling device in series at the water inlet of the waterway to be anti-scaling.

[0055] For other requirements for the use of the anti-fouling alloy described in this embodiment, please refer to the specification section for details.

PUM

Property	Measurement	Unit
Granularity	100.0	nm
Granularity	0.5 ~ 15.0	mm

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Classification and recommendation of technical efficacy words

easy to use
low price

Antiscaling alloy

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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