CN110809658A - Device for preventing corrosion inside steel pipe by using electromagnetic field - Google Patents
Device for preventing corrosion inside steel pipe by using electromagnetic field Download PDFInfo
- Publication number
- CN110809658A CN110809658A CN201880005114.1A CN201880005114A CN110809658A CN 110809658 A CN110809658 A CN 110809658A CN 201880005114 A CN201880005114 A CN 201880005114A CN 110809658 A CN110809658 A CN 110809658A
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- China
- Prior art keywords
- coil
- pipe
- electromagnetic field
- tube
- water supply
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The present invention provides an apparatus for preventing corrosion in a steel pipe by using an electromagnetic field, comprising: a pipe-shaped main body having flanges formed at both ends thereof for coupling to the water supply pipes, wherein a flow path is formed inside the pipe-shaped main body, the flow path allowing tap water flowing in through one of the water supply pipes to flow into the other water supply pipe; a first coil configured to spirally surround the tube-shaped body outside the tube-shaped body; a second coil configured to spirally surround the first coil in a state where an outer side of the first coil is spaced apart from the first coil; and a power supply unit configured to supply a current to the first coil and the second coil, thereby forming an electromagnetic field in the tube-shaped main body; the pipe-shaped body is formed of stainless steel so as to reinforce the strength of an electromagnetic field formed by means of the first coil and the second coil.
Description
Technical Field
The present invention relates to an apparatus for preventing corrosion of the inside of a steel pipe using an electromagnetic field, and more particularly, to an apparatus for preventing corrosion of the inside of a steel pipe using an electromagnetic field, in which a first coil and a second coil are provided in a double structure outside a pipe-shaped body, and are connected to a water supply pipe through which tap water flows, thereby forming an electromagnetic field and preventing corrosion of the inside of a steel pipe, and the pipe-shaped body is formed of stainless steel and has flanges formed at both ends thereof for coupling to the pipe.
Background
In general, a steel pipe used as a water supply pipe is corroded by various corrosion-inducing substances contained in water as the use time elapses, and such corrosion of the water supply pipe not only deteriorates the quality of tap water but also lowers the rigidity of the water supply pipe, and in a serious case, an accident in which the water supply pipe is broken is induced.
Thus, when a water supply line is formed by connecting a plurality of steel pipes, corrosion is prevented by an electrical system using an external power method when the steel pipes are outside, and corrosion is prevented by a corrosion inhibitor, water quality factor control, or the like when the steel pipes are inside.
However, in the case of the method using the corrosion inhibitor, since the rust inhibitor needs to flow into the inside of the pipeline, it cannot be applied to the corrosion prevention of the water supply pipeline, and in the water quality factor control method, although the slaked lime series is added to adjust the pH which is one of the corrosion conditions, the effect thereof has not been seen in the wide water supply pipeline as a method of improving the corrosiveness of the tap water.
Thus, the corrosion prevention method applicable to the water supply line is limited to external corrosion, and a technology capable of preventing internal corrosion without affecting water quality is urgently required.
(Prior Art document)
(patent document)
(patent document 1) registration of patent publication No. 10-1034264 (2011.05.16 publication)
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for preventing corrosion of the inside of a steel pipe by an electromagnetic field, which can effectively prevent corrosion of the inside of a water supply pipe made of a steel pipe without affecting the quality of tap water flowing through the water supply pipe.
The present invention, which has been made to solve the above-mentioned problems and solves the above-mentioned problems, provides an apparatus for preventing corrosion inside a steel pipe by an electromagnetic field, comprising: a pipe-shaped main body having flanges formed at both ends thereof for coupling to the water supply pipes, wherein a flow path is formed inside the pipe-shaped main body, the flow path allowing tap water flowing in through one of the water supply pipes to flow into the other water supply pipe; a first coil configured to spirally surround the tube-shaped body outside the tube-shaped body; a second coil configured to spirally surround the first coil in a state where an outer side of the first coil is spaced apart from the first coil; and a power supply unit configured to supply a current to the first coil and the second coil, thereby forming an electromagnetic field in the tube-shaped main body; the pipe-shaped body is formed of stainless steel so as to reinforce the strength of an electromagnetic field formed by means of the first coil and the second coil.
In the above-described apparatus for preventing corrosion of the inside of a steel pipe using an electromagnetic field, one coil wire is wound around the outside of a pipe-shaped body in a double structure to form the first coil and the second coil.
The apparatus for preventing corrosion inside a steel pipe using an electromagnetic field further includes: and a plurality of electromagnetic steel plates that are arranged to extend along the longitudinal direction of the pipe-shaped body outside the second coil and are arranged to face each other around the second coil with the second coil interposed therebetween, thereby preventing external leakage magnetic flux.
In the above-described apparatus for preventing corrosion inside a steel pipe by an electromagnetic field, the electromagnetic steel sheet is formed of a laminated silicon steel sheet or a ferrite core.
According to the present invention having the above-described features, there is an effect that the internal corrosion of the water supply pipe can be effectively prevented without affecting the quality of the tap water flowing through the water supply pipe made of steel pipe.
Further, there is an effect in that the penetration depth of the skin effect of stainless steel is as high as about 30 times that of iron, and the corrosion prevention effect is increased in proportion to the penetration depth of the skin effect, and thus the effect of preventing the internal corrosion of the water supply pipe can be more improved by the organic combination of the pipe-shaped main body and the first and second coils, which are formed of stainless steel.
In addition, the effect is that, since the anti-corrosion effect is high, the range of the anti-corrosion effect is enlarged, and in order to embody a proper anti-corrosion effect, the distance between the devices for preventing internal corrosion provided to the water supply line can be increased, thereby reducing the number of the internal anti-corrosion devices provided to the water supply line.
Further, the electromagnetic steel sheet disposed outside the second coil can improve the efficiency of the device for preventing internal corrosion by preventing external leakage flux.
Drawings
Fig. 1 is a perspective view of an apparatus for preventing corrosion of the inside of a pipe according to a preferred embodiment of the present invention.
Fig. 2 is a front view of an apparatus for preventing corrosion of the inside of a pipe according to a preferred embodiment of the present invention.
FIG. 3 is a sectional view A-A'.
Fig. 4 is a perspective view of a tube-shaped body according to the present invention.
Fig. 5 is a front view illustrating a state in which the apparatus for preventing corrosion of the inside of a pipe according to the present invention is connected to a water supply pipe.
Description of the reference symbols
(reference numerals for main portions in the drawings)
110: tube-shaped main body 111: flange part
112: groove 120: first coil
130: second coil 140: power supply unit
150: electromagnetic steel sheet
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, it is determined that the related known functions or specific descriptions of the configurations unnecessarily obscure the gist of the present invention, and detailed descriptions thereof are omitted.
Fig. 1 is a perspective view of an apparatus for preventing corrosion of the inside of a pipe according to a preferred embodiment of the present invention, fig. 2 is a front view of the apparatus for preventing corrosion of the inside of a pipe according to the preferred embodiment of the present invention, fig. 3 is a sectional view of a-a', fig. 4 is a perspective view of a pipe-shaped body according to the present invention, and fig. 5 is a front view illustrating a state in which the apparatus for preventing corrosion of the inside of a pipe according to the present invention is connected to a water supply pipe.
The apparatus for preventing corrosion of the inside of a steel pipe using an electromagnetic field according to the present invention is provided to be connected to a water supply pipe P made of a steel pipe, thereby preventing corrosion of the water supply pipe P while forming an electromagnetic field on a path through which tap water flows, and includes a pipe-shaped body 100, a first coil 120, a second coil 130, and a power supply part 140.
The pipe-shaped body 110 is formed in a cylindrical structure having both ends opened, and is formed with flange parts 111 formed at both ends for coupling with the water supply pipes P, so that the two water supply pipes P can be connected between the two water supply pipes P, and a flow path is formed inside to allow tap water flowing in through the water supply pipe P on one side to flow to the water supply pipe P on the other side.
The pipe-shaped body 110 according to the present invention as described above is composed of stainless steel.
Further, it is known that the penetration depth of stainless steel is about 30 times as much as iron (Fe) which is a main component of steel pipes. It is possible to form a more enhanced electromagnetic field in a form proportional to the penetration depth of the skin effect, and thus if the pipe-shaped body 110 is constructed of stainless steel, corrosion of the water feeding pipe P can be more effectively prevented.
The first coil 120 is formed of a conductor, and is provided to extend along the longitudinal direction D of the tube-shaped body 110 outside the tube-shaped body 110 and to have a structure spirally surrounding the tube-shaped body 110.
The second coil 130 is formed of a conductor, and is provided to extend along the longitudinal direction D of the tube-shaped body 110 outside the first coil 120, and to have a structure spirally surrounding the first coil 120.
In this way, the first coil 120 and the second coil 130 are provided in a double structure outside the tube-shaped body 110.
The specifications of the first coil 120 and the second coil 130, such as the wire diameter (diameter of the wire), the number of windings, and the pitch (pitch), may be set according to the size of the tube-shaped body 110, and the first coil 120 and the second coil 130 may be configured in the same specification or in different specifications.
In addition, the first coil 120 and the second coil 130 may be formed as separate structures, but in consideration of convenience in manufacturing and installation, it is preferable that one coil wire is wound on the outer side of the tube-shaped body 110 in a double structure, so that the first coil 120 and the second coil 130 are formed as an integrated structure connected to each other.
In other words, the first and second coils 120 and 130 having an integrated structure can be constructed by spirally winding a coil wire that is long enough to construct the first and second coils 120 and 130 around the outside of the tube-shaped body 110, so that the first coil 120 is first constructed, and then winding the coil wire in such a manner that the remaining portion has a structure that spirally surrounds the outside of the first coil 120.
The power supply unit 140 is connected to the first coil 120 and the second coil 130, and supplies current to the first coil 120 and the second coil 130.
In the case of the apparatus for preventing corrosion inside a pipe including the pipe-shaped body 110, the first coil 120, the second coil 130, and the power supply part 140 as described above, the magnetic steel sheet 150 may be further disposed outside the second coil 130, and the magnetic steel sheet 150 serves to improve the corrosion prevention effect by preventing external leakage magnetic flux.
The magnetic steel sheets 150 are formed in a bar shape extending in the longitudinal direction D of the tube type main body 110, and the plurality of magnetic steel sheets 150 are arranged to be spaced apart from each other at a certain interval in the circumferential direction of the tube type main body 110 outside the second coil 120 while having a uniformly dispersed structure, and preferably, are arranged to be two pairs of each other while having a structure facing each other with the second coil 120 interposed therebetween.
The electromagnetic steel sheet 150 as described above may be formed of a laminated silicon steel sheet or a ferrite core.
In addition, according to a preferred embodiment of the present invention, the magnetic steel sheets 150 are configured in 4 and are disposed to face each other in pairs with a certain interval therebetween in a circumferential direction of the tube type main body 110.
As described above, according to the plurality of magnetic steel sheets 150 arranged in the uniformly dispersed structure outside the second coil 120, when the magnetic fluxes generated by the first and second coils 120 and 130 pass through the outside of the tube-shaped body 110, the magnetic steel sheets 150 reduce external leakage magnetic fluxes and passage resistance, so that the electromagnetic field generated inside the tube-shaped body 110 can be maximized, and particularly, the plurality of magnetic steel sheets 150 are arranged in a symmetrical manner while being paired with each other, so that the effect thereof can be further improved.
In this manner, the electromagnetic steel sheet 150 disposed outside the second coil 130 for preventing external leakage flux may be fixed to a separate bracket, not shown, or both ends may be fixed to the flange 111 of the tube-shaped body 110.
The apparatus for preventing corrosion of the inside of a pipe using an electromagnetic field configured as described above is provided to connect two water supply pipes P between the two water supply pipes P disposed adjacent to each other or to cut off a part of the water supply pipe P according to circumstances, and may be provided to be connected to the water supply pipe P in the cut-off section.
The apparatus for preventing corrosion of the inside of a pipe thus configured is operated by supplying current to the first coil 120 and the second coil 130 by the power supply unit 140, and an electromagnetic field is formed in the pipe-shaped main body 110 by the current supplied to the first coil 120 and the second coil 130.
In addition, as the electromagnetic field is formed in the pipe-shaped body 110, the electromagnetic field passes through the inside of the pipe-shaped body 110The lorentz force method generates electrons, and the generated electrons flow together with tap water and are combined with iron ions oxidized by losing electrons, thereby being transformed into magnetite (Magnet ite) (3 Fe)2O3*nH2O+e-＝>2Fe3O4+1/2O2+3nH2O), corrosion of the water supply pipe P made of a steel pipe can be prevented.
In addition, the pipe-shaped body 110 is made of stainless steel, and a stronger electromagnetic field is induced due to a higher penetration effect of the stainless steel, so that the generation of electrons is increased, and the effect of preventing corrosion can be further improved.
Further, the first coil 120 and the second coil 130 are provided in a double structure outside the tube-shaped main body 110, and according to the structure as described above, the electric field intensity transfer effect by the proximity effect becomes very large, thereby affecting ion particles (iron ions, etc.), and thus the corrosion rate can be more reduced.
Further, the plurality of magnetic steel sheets 150 arranged facing each other in the same phase in pair outside the second coil 130 prevents external leakage magnetic flux, thereby improving corrosion prevention efficiency.
As described above, the apparatus for preventing corrosion of the inside of a pipe according to the present invention is connected to a water supply pipe P made of a steel pipe, and a strong electromagnetic field is formed on a flow path of tap water due to a double structure of the pipe-shaped body 110 made of stainless steel, the first and second coils 120 and 130, and an external leakage flux preventing structure of the electromagnetic steel plate 150, thereby effectively preventing corrosion of the water supply pipe P.
The present invention is not limited to the specific preferred embodiments described above, and it is needless to say that any person having ordinary knowledge in the technical field to which the present invention pertains can carry out various modifications without departing from the gist of the present invention claimed in the claims, and such modifications are included in the scope of the claims.
Claims (4)
1. An apparatus for preventing corrosion inside a steel pipe using an electromagnetic field, comprising:
a pipe-shaped main body (110) having flanges (111) formed at both ends thereof for coupling to the water supply pipe (P) such that a flow path is formed inside, through which tap water flowing in through one side water supply pipe (P) flows to the other side water supply pipe (P);
a first coil (120) configured to surround the tube-shaped body (110) in a spiral shape outside the tube-shaped body (110);
a second coil (130) that is arranged so as to spirally surround the first coil (120) in a state where the outside of the first coil (120) is spaced apart from the first coil (120); and
a power supply unit (140) that supplies current to the first coil (120) and the second coil (130) and forms an electromagnetic field on the tube-shaped main body (110);
the tube-shaped body (110) is formed of stainless steel so as to reinforce the strength of an electromagnetic field formed by means of the first coil (120) and the second coil (130).
2. The apparatus for preventing corrosion inside a steel pipe using an electromagnetic field according to claim 1,
one coil wire is wound on the outer side of the tube-shaped body (110) in a double structure, thereby forming the first coil (120) and the second coil (130).
3. The apparatus for preventing corrosion inside a steel pipe using an electromagnetic field according to claim 1, further comprising:
and a plurality of magnetic steel plates (150) that are arranged outside the second coil (130) so as to extend along the longitudinal direction of the tube-shaped body (110), and that are arranged around the second coil (130) so as to face each other with the second coil (130) therebetween, thereby preventing external leakage magnetic flux.
4. The apparatus for preventing corrosion of the inside of a steel pipe using an electromagnetic field according to claim 3,
the electromagnetic steel sheet is formed of laminated silicon steel sheets or ferrite cores.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0063162 | 2018-06-01 | ||
| KR1020180063162A KR101914975B1 (en) | 2018-06-01 | 2018-06-01 | Apparatus for preventing corrosion inside steel pipe using electromagnetic field |
| PCT/KR2018/007133 WO2019231041A1 (en) | 2018-06-01 | 2018-06-25 | Apparatus for preventing corrosion inside steel pipe by using electromagnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110809658A true CN110809658A (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880005114.1A Pending CN110809658A (en) | 2018-06-01 | 2018-06-25 | Device for preventing corrosion inside steel pipe by using electromagnetic field |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101914975B1 (en) |
| CN (1) | CN110809658A (en) |
| WO (1) | WO2019231041A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877699A (en) * | 2021-01-13 | 2021-06-01 | 上海大学 | Metal anticorrosion device based on Hall effect |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102083755B1 (en) | 2019-04-29 | 2020-03-02 | 양현정 | The washing machine and tool whiche have a prevention of scale form |
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- 2018-06-01 KR KR1020180063162A patent/KR101914975B1/en active IP Right Grant
- 2018-06-25 WO PCT/KR2018/007133 patent/WO2019231041A1/en active Application Filing
- 2018-06-25 CN CN201880005114.1A patent/CN110809658A/en active Pending
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| CN112877699A (en) * | 2021-01-13 | 2021-06-01 | 上海大学 | Metal anticorrosion device based on Hall effect |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019231041A1 (en) | 2019-12-05 |
| KR101914975B1 (en) | 2018-11-06 |
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Application publication date: 20200218 |