WO2017052312A1 - 배관용 클램프 - Google Patents
배관용 클램프 Download PDFInfo
- Publication number
- WO2017052312A1 WO2017052312A1 PCT/KR2016/010722 KR2016010722W WO2017052312A1 WO 2017052312 A1 WO2017052312 A1 WO 2017052312A1 KR 2016010722 W KR2016010722 W KR 2016010722W WO 2017052312 A1 WO2017052312 A1 WO 2017052312A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- preventing member
- gap
- corrosion preventing
- gap corrosion
- Prior art date
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Classifications
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- 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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
-
- 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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
-
- 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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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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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- 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
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
Definitions
- the present invention relates to a pipe clamp.
- floating structures such as ships, drilling vessels, floating production storage offloading equipment (FPSO), may be provided with plumbing equipment for transporting working fluids such as gas or oil.
- FPSO floating production storage offloading equipment
- the drilling vessel may be equipped with drilling equipment such as derrick, and lubricating oil may be provided through the pipe for smooth driving of the drilling drill drilling the seabed.
- the pipe since the pipe is to be fixed without shaking for the long-distance transfer of lubricating oil, the pipe may be fixed by the clamp.
- Clamps are installed at regular intervals along the length of the pipe, in accordance with the ship design, to firmly support the pipe.
- pipes extending to the basement of several tens to hundreds of meters or less, it is difficult for a worker to maintain and difficult to maintain, and if a pipe is damaged due to corrosion or the like, a problem of leaking a working fluid from a damaged part may occur.
- the pipe for transporting the working fluid is made of stainless steel or various metal materials, and the pipe clamp may be made of plastic.
- Crevice corrosion is the electrochemical corrosion caused by the difference in concentration of ions due to the electrolyte solution entering the gap between metals or between metals and other materials.
- Embodiments of the present invention to provide a pipe clamp that can minimize the gap corrosion due to contact with external moisture and oxygen.
- the gap corrosion preventing member surrounding the outer surface of the pipe; And a body having an opening wall that is assembled with the gap preventing member interposed therebetween, and having an opening wall through which the pipe penetrates at both ends, wherein the gap corrosion preventing member is provided with a length equal to a distance between the opening walls. An end of the corrosion preventing member may be supported by the opening wall.
- the gap corrosion preventing member may include an aluminum alloy having an oxide film formed on a surface thereof.
- the inner diameter of the gap preventing member may have a diameter at least smaller than the inner diameter of the opening hole.
- the opening hole may be provided with an inclined surface such that the inner diameter of the outer hole is at least larger than the inner diameter of the inner hole.
- a stepped portion may be formed at an end of the gap preventing member, and the stepped portion of the gap preventing member may be supported by an opening hole of the opening wall through which the pipe passes.
- the stepped portion of the gap corrosion preventing member may be supported to at least contact the inner diameter surface of the opening hole so as not to be exposed to the outside of the body.
- the stepped portion may include an inclined surface such that the inner diameter of the outer portion is at least larger than the inner diameter of the inner portion.
- the gap corrosion preventing member surrounds the upper outer diameter surface of the pipe and surrounds the first prevention member supported by the opening hole through the stepped portion, the lower outer diameter surface of the pipe, and the opening hole through the stepped portion. It may include a second preventing member that is supported.
- the gap corrosion preventing member may include a metal having a metal reactivity greater than that of the pipe, the anti-corrosion part disposed to surround the circumferential surface of the pipe, and an outer circumference protection part disposed to surround the outer circumferential surface of the rust preventive part.
- the body includes a first body and a second body is assembled to each other to surround the circumferential surface of the pipe, the interior of the first body and the second body, the gap corrosion preventing member is seated
- a support having a shape corresponding to at least a part of the outer circumferential surface of the gap corrosion preventing member may be provided.
- the rust preventive portion may have a length shorter than the length of the outer circumference protection portion.
- the gap corrosion preventing member further includes a finish protection unit having an inner circumferential surface corresponding to the circumferential surface of the pipe, the finish protection unit is provided on both sides in the longitudinal direction of the rust preventive portion, the outer circumferential surface of the finish protection unit is the outer circumference It can be tightly coupled to the inner peripheral surface of the protection.
- both ends of the gap corrosion preventing member are bent in the direction in which the body is provided and introduced into the body, and the bodies are provided in a shape corresponding to each other, and are assembled to surround the outer circumferential surface of the pipe. It is provided with a body and a second body, the first body and the second body may be provided with a support portion which is inserted inward to seat the gap preventing member.
- the gap corrosion preventing member may be mounted on a support of the first body and contacted with a part of an outer circumferential surface of the pipe, a first prevention member seated on a support of the second body, and the first prevention member of the pipe. It may be provided as a second preventing member in contact with a portion of the outer peripheral surface that is not in contact.
- first and second prevention members are provided in a shape corresponding to the outer circumferential surface of the pipe, the inner surface is provided with a corrosion portion which is in contact with the outer circumferential surface of the pipe, and extended radially outward from the corrosion portion And a flange portion bent toward the first body and the second body at an extended end of the connection portion.
- Embodiments of the present invention by applying an aluminum alloy formed on the surface of the oxide film to the anti-corrosion member, after the oxide film is destroyed in an environment where the corrosion is generated, the anti-corrosion member is corroded before the pipe, the corrosion of the pipe There is an advantage that it can be effectively prevented, and consequently, the working life of the pipe can be prominently increased.
- the embodiments of the present invention since the stepped portion of the corrosion preventing member is corroded earlier than the rest of the corrosion preventing member except for the stepped portion, there is no space between the pipe and the body, and eventually, the gap corrosion due to the space is generated. It can be prevented, and in particular, since the body effectively holds the pipe, the bearing force can be maintained as it is.
- embodiments of the present invention has the advantage that the corrosion preventing member is not exposed in the body of the clamp, thereby minimizing contact with external moisture and oxygen.
- the embodiments of the present invention since the end of the gap preventing member is supported on the opening wall of the body, it is easy to fix the gap preventing member to the body, no need for a separate fixing device for fixing the gap corrosion preventing member There is an advantage.
- embodiments of the present invention by forming a coating layer on the outer circumferential surface of the pipe except for the contact surface of the gap corrosion prevention member, it is possible to prevent the corrosion products due to corrosion of the gap corrosion prevention member generated inside the clamp, As a result, there is an advantage that the life of the gap corrosion preventing member can be extended.
- FIG. 1 is a perspective view showing a plumbing fixture according to a first embodiment of the present invention.
- FIG. 2 is a perspective view showing a pipe clamp according to a first embodiment of the present invention.
- FIG. 3 is a cross-sectional view taken along line “A-A” of FIG. 2.
- FIG. 4 is an exploded perspective view illustrating a pipe clamp according to a first embodiment of the present invention.
- FIG. 5 is a cross-sectional view showing a pipe clamp according to a modification of the first embodiment of the present invention.
- FIG. 6 is a graph comparing the service life of the aluminum alloy having an oxide film formed on the surface of the clamp for plumbing according to the second embodiment of the present invention, and the gap corrosion preventing member having no oxide film formed on the surface thereof; .
- FIG. 7 is a perspective view showing a plumbing fixture according to a third embodiment of the present invention.
- FIG. 8 is a perspective view showing a pipe clamp according to a third embodiment of the present invention.
- FIG. 9 is a cross-sectional view taken along line “B-B” of FIG. 8.
- FIG. 10 is an exploded perspective view showing a pipe clamp according to a third embodiment of the present invention.
- FIG. 11 is a cross-sectional view showing a pipe clamp according to a modification of the third embodiment of the present invention.
- FIG. 12 is a perspective view of a piping facility including a clamp for piping according to a fourth embodiment of the present invention.
- FIG. 13 is an enlarged view of the pipe clamp of FIG. 12.
- FIG. 14 is a perspective view showing a state in which the pipe clamp of FIG. 13 is fastened without a pipe.
- FIG. 15 is an exploded perspective view of the pipe clamp of FIG. 13.
- FIG. 16 is a cross-sectional view taken along line "C-C" in FIG.
- FIG. 17 is an exploded perspective view showing a gap corrosion preventing member according to a fourth exemplary embodiment of the present invention.
- FIG. 18 is a perspective view illustrating a state in which the gap corrosion preventing member of FIG. 17 is assembled.
- FIG. 19 is a cross-sectional view taken along the line “D-D” of FIG. 18.
- FIG. 20 is a schematic perspective view of a pipe to which a pipe clamp according to a fifth embodiment of the present invention is coupled.
- 21 is an enlarged view illustrating an enlarged pipe clamp according to a fifth embodiment of the present invention.
- FIG. 22 is a schematic perspective view of a pipe clamp according to a fifth embodiment of the present invention.
- FIG. 23 is a schematic exploded perspective view of a pipe clamp according to a fifth embodiment of the present invention.
- 24 is a schematic cross-sectional view taken along the line “E-E” of FIG. 21.
- 25 is a schematic perspective view of a gap corrosion preventing member provided in a pipe clamp according to a fifth embodiment of the present invention.
- FIG. 1 is a perspective view showing a plumbing fixture according to a first embodiment of the present invention
- Figure 2 is a perspective view showing a pipe clamp according to a first embodiment of the present invention
- Figure 3 is a "AA" of FIG. 4 is a cross-sectional view illustrating the pipe section
- FIG. 4 is an exploded perspective view illustrating a pipe clamp according to a first embodiment of the present invention.
- the pipe clamp 100 according to the first embodiment of the present invention, the gap corrosion preventing member 110 and the gap corrosion preventing member surrounding the outer surface of the pipe 200 (
- the gap 120 may include a body 120 to which the gap corrosion preventing member 110 is assembled.
- the pipe 200 is a pipe (or tube) for transporting oil, gas, etc. to a long distance, it may be made of stainless steel (Stainless Steel) or various series alloys excellent in corrosion resistance and strength. Pipe 200 may be formed in the lengthwise direction of the pipeline for transporting the fluid, it may be fixed through the clamp 100 in the installation area 20, such as a plate.
- the body 120 may fix the pipe 200 to the installation region 20 or connect the plurality of pipes 200 to each other.
- the body 120 may be provided in the form of a housing of a hexahedron, and an opening wall 121 having an opening hole 121a may be provided at both ends of the body 120.
- the opening hole 121a is a through hole having a shape corresponding to the outer circumferential surface of the pipe 200, and the inner diameter of the opening hole 121a is designed to be at least larger than the outer diameter of the pipe 200 at intervals at which a gap corrosion does not occur. do.
- the interval between the inner diameter of the opening hole 121a and the outer diameter of the pipe 200 may maintain a distance of about 100 microns or more.
- a rib 122 may be provided inside the body 120 to support an outer surface of the gap corrosion preventing member 110.
- the rib 122 may be formed of at least one, and the end portion of the rib 122 may be formed in a shape corresponding to the outer surface shape of the gap corrosion preventing member 110.
- the inside of the body 120 is a structure that is provided with a rib 122 for supporting the gap corrosion preventing member 110, but is not limited to this, the body 120, without a separate rib, the body It may be possible to support the anti-corrosion member 110 by its own structure (eg, the state in which the interior of the body is filled) of 120.
- the body 120 may be made of a metal material having a greater activity than the pipe 200, but may be made of a nonmetal material in consideration of cost and weight.
- the body 120 may be made of Teflon material including Teflon, a composite synthetic resin containing Teflon, plastic, glass fiber, or the like.
- the body 120 may be configured of a first body 120a and a second body 120b that are assembled with the gap corrosion preventing member 110 interposed therebetween.
- the first body 120a may have a box shape in which a lower portion thereof is opened to surround the upper portion of the gap corrosion preventing member 110, and the second body 120b may have an upper portion so as to surround a lower portion of the gap corrosion preventing member 110. It may be in the form of an open box.
- the first prevention member 110a may be fitted into the first body 120a and the second prevention member 110b may be fitted into the second body 120b.
- the first body 120a and the second body 120b are one body 120 by a fastening member 130 such as a bolt in a state in which the first body 120a and the second body 120b are disposed up and down with the gap corrosion preventing member 110 interposed therebetween. Can be assembled.
- the fastening member 130 may be assembled to the mounting holes 123 of the first body 120a and the second body 120b by passing through the through hole 151 of the reinforcing plate 150.
- the body 120 is composed of a first body 120a and a second body 120b which are assembled to surround the upper and lower portions of the gap corrosion preventing member 110, respectively, but are not limited thereto. No.
- the body 120 may be provided in one box form.
- the gap corrosion preventing member 110 is in direct contact with the outer surface of the pipe 200. In the state disposed between the body 120 and the pipe 200, the pipe 200 is corroded earlier than the pipe 200. Can prevent corrosion of crevices.
- a battery is formed by a potential difference between the two metals.
- a relatively active metal becomes an anode
- a less active metal or a noble metal becomes a cathode.
- the anode gives electrons and oxidizes to produce corrosion, while the cathode receives and reduces electrons to protect against corrosion. Using this principle to prevent corrosion is called cathodic protection.
- the anode at this time is called a sacrificial anode.
- the pipe 200 becomes a cathode
- the gap corrosion preventing member 110 becomes a sacrificial anode
- the gap corrosion preventing member 110 is corroded before the pipe 200, thereby protecting the pipe 200 from corrosion. can do.
- the inner diameter H1 of the gap corrosion preventing member 110 may be designed to have a diameter that is at least smaller than the inner diameter H2 of the opening hole 121a at intervals at which the gap corrosion does not occur.
- the interval between the inner diameter of the opening hole 121a and the outer diameter of the pipe 200 may maintain a spacing of about 100 microns or more. As a result, it is possible to prevent the outer surface of the pipe 200 from directly contacting the inner diameter surface of the opening hole 121a.
- the inner diameter of the gap corrosion preventing member 110 is designed to have the same diameter as the outer diameter of the pipe 200, so that the inner diameter surface of the gap corrosion preventing member 110 and the outer diameter surface of the pipe 200 are in close contact with each other, thereby causing a gap. Corrosion can be prevented in advance between the inner diameter surface of the corrosion preventing member 110 and the outer diameter surface of the pipe 200.
- the gap corrosion preventing member 110 may include a first prevention member 110a that is in close contact with the upper outer surface of the pipe 200, and a second prevention member 110b that is in close contact with the lower outer surface of the pipe 200.
- the outer surfaces of the first and second prevention members 110a and 110b may be supported by the ribs 122 of the body 120, and the first and second prevention members 110a and 110b may be supported. Both ends of the body 120 may be supported by the opening wall 121 of the body 120. To this end, the distance between the gap preventing member 110 and the opening wall 121 is designed to be the same length.
- the gap corrosion preventing member 110 is supported in the outer diameter direction of the pipe 200 through the ribs 122 of the body 120, so that the inner surface of the gap corrosion preventing member 110 on the outer surface of the pipe 200. It can be as close as possible.
- the gap corrosion preventing member 110 is supported in the longitudinal direction of the pipe 200 through the opening wall 121 of the body 120, so that the gap corrosion preventing member (without a separate fixing device) in the body 120 ( The position of 110 may be fixed.
- FIG. 5 is a cross-sectional view showing a pipe clamp according to a modification of the first embodiment of the present invention.
- an inclined surface inclined in the outward direction of the body 120 may be formed in the opening hole 121a ′ of the body 120.
- the opening hole 121a ' is composed of an inner diameter surface having an inner diameter located at an outer side and at least larger than an inner diameter located at an inner side, so that the condensed water located in the opening hole 121a' is in an outward direction of the body 120 through the inclined surface. Can be discharged.
- the coating layer 210 for preventing corrosion is formed on the outer circumferential surface of the pipe 200, except the surface that the gap corrosion preventing member 110 is in contact Can be.
- a coating layer 210 may be formed on an outer circumferential surface of the pipe 200, particularly, an outer circumferential surface of the pipe 200 except for a surface in which the gap corrosion preventing member 110 contacts.
- the coating layer 210 is mixed with an anticorrosive material such as an anti-corrosive paint, such as a transparent epoxy or urethane paint, and is applied to the outer circumferential surface of the pipe 200 except for the surface where the gap corrosion preventing member 110 contacts, thereby preventing the corrosion corrosion member 110. Corrosion products due to the corrosion of the) can be prevented from occurring in the interior of the clamp 100, after all, it is possible to extend the life of the gap corrosion prevention member (110).
- the coating layer 210 may be mixed with an indicator that changes color depending on the PH concentration. For example, when corrosion occurs on the outer circumferential surface of the pipe 200, the pH is lowered by increasing hydrogen ions in the corrosion-prone part, and the pH is increased due to an increase in OH ions on the outer circumferential surface of the pipe 200 adjacent to the crevice corrosion. do. Therefore, if the coating layer 210 is mixed with the indicator on the outer circumferential surface of the pipe 200, since the corrosion is always accompanied by a pH change, through the coating layer 210 containing the indicator, it is possible to detect the gap corrosion.
- the indicator mixed in the coating layer 210 may be an alkali detection indicator which is discolored when it is changed from neutral to alkaline.
- an indicator having a corresponding discoloration pH range may be used according to the material of the pipe 200.
- the clamp 100 may include a gap corrosion preventing member 110 surrounding the outer surface of the pipe 200, and a body 120 at which an end of the gap corrosion preventing member 110 is supported by the opening wall 121.
- a gap corrosion preventing member 110 surrounding the outer surface of the pipe 200
- a body 120 at which an end of the gap corrosion preventing member 110 is supported by the opening wall 121.
- a pair of bodies 120 are disposed to face each other such that the gap corrosion preventing member 110 surrounds the outer circumferential surface of the pipe 200.
- the reinforcing plate 150 is disposed on the upper part of the body 120, a fastening member 130 such as a bolt is inserted into the through hole 151 of the reinforcing plate 150, and then the plate, which is the installation region 20, is placed on the plate. By fastening, the installation work of the clamp 100 is completed.
- the outer surfaces of the first and second prevention members 110a and 110b may be supported by the ribs 122 of the body 120, and the first and second prevention members 110a and 110b may be supported. Both ends of the) are supported by the opening wall 121 of the body 120, so that the position of the gap corrosion preventing member 110 may be fixed in the body 120 without a separate fixing device.
- the coating layer 210 for preventing corrosion is formed on the outer circumferential surface of the pipe 200 except for the surface in which the gap corrosion preventing member 110 contacts, the corrosion product due to corrosion of the gap corrosion preventing member 110 is clamped. It can be prevented from occurring inside the 100.
- the gap corrosion preventing member may be formed of an aluminum alloy having an oxide film formed on a surface thereof.
- a sacrificial aluminum electrode (Sacricial Al Anode) that is usually applied to the anticorrosion member to prevent corrosion of the pipe, to prevent corrosion of the target metal (for example, pipe) to prevent corrosion, In, Zn
- the target metal for example, pipe
- Sn By adding Sn, it is possible to continuously maintain the role as a sacrificial electrode, where the role of the added elements (In, Zn, Sn 7) is to corrode the target metal (pipe) to prevent corrosion in the corrosive environment Maximizes the protection area and prevents the formation of an oxide film on the sacrificial aluminum electrode surface to continuously perform the corrosion protection role.
- the aluminum alloy in which the oxide film is formed on the surface can be used as the component of the gap corrosion prevention member applied to this embodiment.
- the anti-corrosion clamp is a clamp used for highly corrosion-resistant pipes including stainless steel, the oxide film present in the aluminum alloy is not destroyed in a general environment, but is destroyed in an environment where the pipe corrosion occurs. This is because, since the corrosion of the pipe can be prevented by the aluminum alloy base material.
- FIG. 6 is a graph comparing the service life of the aluminum alloy having an oxide film formed on the surface of the clamp for plumbing according to the second embodiment of the present invention, and the gap corrosion preventing member having no oxide film formed on the surface thereof; .
- A is a zinc sacrificial member (Zn anode)
- B is an aluminum sacrificial member (Al anode)
- C is an aluminum alloy (Al ally: 2024)
- D is an aluminum alloy (Al ally: 6061)
- E is an aluminum alloy (Al ally: 7075).
- FIG. 7 is an exploded perspective view showing a plumbing fixture according to a third embodiment of the present invention
- FIG. 8 is a perspective view showing a pipe clamp according to a third embodiment of the present invention
- FIG. I is a cross-sectional view showing a cutaway line
- FIG. 10 is an exploded perspective view showing a pipe clamp according to a third embodiment of the present invention.
- the clamp 100 for pipes according to the third embodiment of the present invention the gap corrosion preventing member 110 and the gap corrosion preventing member surrounding the outer surface of the pipe 200 (
- the gap preventing member 110 may be assembled with the body 120 to support the stepped portion 124 of the 110.
- the pipe 200 is a pipe (or tube) for transporting oil, gas, etc. to a long distance, it may be made of stainless steel (Stainless Steel) or various series alloys excellent in corrosion resistance and strength. Pipe 200 may be formed in the lengthwise direction of the pipeline for transporting the fluid, it may be fixed through the clamp 100 in the installation area 20, such as a plate.
- the body 120 is configured to fix the pipe 200 to the installation area 20 or to connect the plurality of pipes 200 to each other, and may be provided in the form of a hexahedral housing. Opening walls 121 having opening holes 121a may be provided at both ends of the body 120.
- the opening hole 121a is a through hole having a shape corresponding to the outer circumferential surface of the pipe 200, and the inner diameter of the opening hole 121a is designed to be at least larger than the outer diameter of the pipe 200 at intervals at which a gap corrosion does not occur. do.
- the interval between the inner diameter of the opening hole 121a and the outer diameter of the pipe 200 may maintain a distance of about 100 microns or more.
- a rib 122 may be provided inside the body 120 to support an outer surface of the gap corrosion preventing member 110.
- the rib 122 may be formed of at least one, and the end portion of the rib 122 may be formed in a shape corresponding to the outer surface shape of the gap corrosion preventing member 110.
- the inside of the body 120 is a structure that is provided with a rib 122 for supporting the gap corrosion preventing member 110, but is not limited to this, the body 120, without a separate rib, the body It may be possible to support the anti-corrosion member 110 by its own structure (eg, the state in which the interior of the body is filled) of 120.
- the body 120 may be made of a metal material having a greater activity than the pipe 200, but may be made of a nonmetal material in consideration of cost and weight.
- the body 120 may be made of Teflon material including Teflon, a composite synthetic resin containing Teflon, plastic, glass fiber, or the like.
- the body 120 may be configured of a first body 120a and a second body 120b that are assembled with the gap corrosion preventing member 110 interposed therebetween.
- the first body 120a may have a box shape in which a lower portion thereof is opened to surround the upper portion of the gap corrosion preventing member 110, and the second body 120b may have an upper portion so as to surround a lower portion of the gap corrosion preventing member 110. It may be in the form of an open box.
- the first prevention member 110a may be fitted into the first body 120a and the second prevention member 110b may be fitted into the second body 120b.
- the first body 120a and the second body 120b are one body 120 by a fastening member 130 such as a bolt in a state in which the first body 120a and the second body 120b are disposed up and down with the gap corrosion preventing member 110 interposed therebetween. Can be assembled.
- the fastening member 130 may be assembled to the mounting holes 123 of the first body 120a and the second body 120b by passing through the through hole 151 of the reinforcing plate 150.
- the body 120 is composed of a first body 120a and a second body 120b which are assembled to surround the upper and lower portions of the gap corrosion preventing member 110, respectively, but are not limited thereto. No.
- the body 120 may be provided in one box form.
- the gap corrosion preventing member 110 is a portion where direct contact is made to the outer surface of the pipe 200, and is disposed between the body 120 and the pipe 200 to be corroded earlier than the pipe 200, thereby providing a pipe 200. ) Can prevent crevice corrosion.
- the pipe 200 becomes a cathode
- the gap corrosion preventing member 110 becomes a sacrificial anode
- the gap corrosion preventing member 110 is corroded before the pipe 200, thereby protecting the pipe 200 from corrosion. can do.
- the inner diameter of the gap corrosion preventing member 110 is designed to be at least larger than the outer diameter of the pipe 200 at intervals at which the gap corrosion does not occur.
- the gap corrosion preventing member 110 may include a first prevention member 110a that is in close contact with the upper outer surface of the pipe 200, and a second prevention member 110b that is in close contact with the lower outer surface of the pipe 200.
- the outer surfaces of the first and second prevention members 110a and 110b may be supported by the ribs 122 of the body 120, and the first and second prevention members 110a and 110b may be supported. Both ends of the may be supported by the opening hole 121a of the opening wall 121 through the stepped portion 124.
- the gap corrosion preventing member 110 is supported in the outer diameter direction of the pipe 200 by the ribs 122 of the body 120, so that the inner surface of the gap corrosion preventing member 110 is disposed on the outer surface of the pipe 200. It can be as close as possible and is supported by the opening hole 121a of the body 120 through the stepped portion 124, so that the position of the gap corrosion preventing member 110 is fixed within the body 120 without a separate fixing device. Can be.
- the stepped portion 124 of the corrosion preventing member 110 is corroded earlier than the rest of the gap corrosion preventing member 110 except for the stepped portion 124. Since no space is generated between the pipe 200 and the body 120, a gap corrosion due to the space can be prevented, and since the body 120 effectively holds the pipe 200, the bearing force can be maintained as it is. have.
- FIG. 11 is a cross-sectional view showing a pipe clamp according to a modification of the third embodiment of the present invention.
- an inclined surface inclined in the outward direction of the body 120 may be formed at the stepped portion 124 ′ of the gap corrosion preventing member 110. have.
- the stepped portion 124 ' is formed of an inner diameter surface having a diameter at least larger than an inner diameter located at an outer side thereof, so that the condensed water positioned at the stepped portion 124' is inclined outwardly through the inclined surface. Can be discharged.
- a coating layer 210 is formed on the outer circumferential surface of the pipe 200 except for the surface where the gap corrosion preventing member 110 contacts. Can be.
- a coating layer 210 may be formed on the outer circumferential surface of the pipe 200, particularly, the outer circumferential surface of the pipe 200 except for the contact surface of the gap corrosion preventing member 110.
- the coating layer 210 is mixed with an anticorrosive material such as an anti-corrosive paint, such as a transparent epoxy or urethane paint, and is applied to the outer circumferential surface of the pipe 200 except for the surface where the gap corrosion preventing member 110 contacts, thereby preventing the corrosion corrosion member 110. Corrosion products due to the corrosion of the) can be prevented from occurring in the interior of the clamp 100, after all, it is possible to extend the life of the gap corrosion prevention member (110).
- the coating layer 210 may be mixed with an indicator that changes color depending on the PH concentration. For example, when a crevice corrosion occurs on the outer circumferential surface of the pipe 200 in contact with the clamp 100, the hydrogen ion is increased in the site where the crevice corrosion occurs, the pH is lowered, and the outer circumferential surface of the pipe 200 adjacent to the crevice corrosion. The pH is increased due to the increased OH ion. Therefore, if the coating layer 210 is mixed with the indicator on the outer circumferential surface of the pipe 200, since the gap corrosion is always accompanied by a pH change, through the coating layer 210 containing the indicator, it is possible to detect the gap corrosion.
- the indicator mixed in the coating layer 210 may be an alkali detection indicator which is discolored when it is changed from neutral to alkaline.
- an indicator having a corresponding discoloration pH range may be used according to the material of the pipe 200.
- the clamp 100 may include a gap corrosion preventing member 110 surrounding the outer surface of the pipe 200, and a body 120 at which an end of the gap corrosion preventing member 110 is supported by the opening wall 121.
- a gap corrosion preventing member 110 surrounding the outer surface of the pipe 200
- a body 120 at which an end of the gap corrosion preventing member 110 is supported by the opening wall 121.
- a pair of bodies 120 are disposed to face each other such that the gap corrosion preventing member 110 surrounds the outer circumferential surface of the pipe 200.
- the reinforcing plate 150 is disposed on the upper part of the body 120, a fastening member 130 such as a bolt is inserted into the through hole 151 of the reinforcing plate 150, and then the plate, which is the installation region 20, is placed on the plate. By fastening, the installation work of the clamp 100 is completed.
- the outer surfaces of the first and second prevention members 110a and 110b may be supported by the ribs 122 of the body 120, and the first and second prevention members 110a and 110b may be supported. Both ends of the) are supported by the opening hole 121a through the stepped portion 124, so that the position of the gap corrosion preventing member 110 may be fixed in the body 120 without a separate fixing device.
- the coating layer 210 for preventing corrosion is formed on the outer circumferential surface of the pipe 200 except for the surface in which the gap corrosion preventing member 110 contacts, the corrosion product due to corrosion of the gap corrosion preventing member 110 is clamped. It can be prevented from occurring inside the 100.
- FIG. 12 is a perspective view of a pipe installation including a pipe clamp according to a fourth embodiment of the present invention.
- the piping facility 10 may be installed in an installation area 20 such as a plate, and may include a pipe clamp 100 connected to the pipe 200. Include.
- the pipe clamp 100 may be made of a material such as Teflon (Teflon), Teflon-containing composite resin, plastic or glass fiber (Glass Fiber) in consideration of the cost.
- the pipe 200 may be installed in the installation region 20 by the pipe clamp 100, and the plurality of pipes 200 may be connected by the pipe clamp 100.
- the pipe 200 provides a pipe through which fluids such as oil and gas are transported to a long distance, and may be made of stainless steel or corrosion resistance alloy having excellent corrosion resistance and strength.
- a gap corrosion preventing member may be provided between the pipe clamp 100 and the pipe 200.
- FIG. 13 is an enlarged view of the pipe clamp of FIG. 12
- FIG. 14 is a perspective view illustrating a state in which the pipe clamp of FIG. 13 is fastened without a pipe
- FIG. 15 is an exploded perspective view of the pipe clamp of FIG. 13, and FIG. 16. Is a cross-sectional view taken along "CC" in FIG.
- the pipe clamp 100 is in surface contact with the circumferential surface of the pipe 200 to fix the pipe 200 to the installation region 20 or to connect the plurality of pipes 200 to each other.
- the pipe clamp 100 may include a pair of bodies 120a and 120b and a fastening member 130 connecting the pair of bodies 120a and 120b.
- the first body 120a may be disposed above the pipe 200
- the second body 120b may be disposed below the pipe 200.
- the first body 120a of the pipe 200 may have a shape surrounding the upper circumferential surface of the pipe 200.
- the first body 120a may have a hexahedral shape, and at least one mounting hole 123 into which the fastening member 130 may be inserted may be formed on an upper surface thereof.
- a semicircular opening hole 121a through which the pipe 200 is inserted may be formed on one surface of the first body 120a and the other surface on the opposite side thereof.
- the support body 112 may be formed in the first body 120a to support the gap corrosion preventing member 110.
- the support part 112 may have a shape corresponding to the outer circumferential surface of the gap corrosion preventing member 110, and the gap corrosion preventing member may be seated on the support part 112.
- the support part 112 since the support part 112 is inserted inward more than the semicircular opening hole 121a, the support part 112 may have a radius larger than that of the semicircular opening hole 121a.
- the "outer circumferential surface" of the anticorrosion member means the side opposite to the surface where the anticorrosion member is in contact with the pipe.
- the second body 120b may have a shape surrounding the lower circumferential surface of the pipe 200.
- the specific configuration of the second body 120b may be provided in the same manner as the first body 120a.
- the spirit of the present invention is not limited due to the shape of the body, the body of the clamp (120a, 120b) is a concept of the present invention It is possible to carry out the deformation as long as it does not harm.
- a fastening member 130 such as a bolt is mounted to the mounting hole 123 of the first body 120a. And as it is fastened to the insertion hole 102 of the second body (120b) may be provided to clamp the pipe (200). In this case, the reinforcing plate 130 may be provided between the first body 120a and the fastening member 130.
- the gap corrosion preventing member 110 may be disposed between the bodies 120a and 120b and the pipe 200 when viewed in the axial section of the pipe 200 (FIG. 16).
- the axial direction of the pipe 200 means the x-axis direction of FIG.
- the gap corrosion preventing member 110 includes a rust preventive portion 115 disposed to surround all or a part of the circumferential surface of the pipe 200, and an outer circumferential protection portion disposed to surround the outer circumferential surface of the rust preventive portion 115 ( 114).
- the "outer circumferential surface" of the rust preventive portion means a surface opposite to the surface on which the rust preventive portion contacts the pipe, similarly to the outer circumferential surface of the gap corrosion preventing member described above.
- the rust preventive part 115 may include a metal having a greater metal reactivity than the pipe 200.
- the rust preventive part 115 may be formed of an alloy in which tin (Sn), phosphorus (In) is mixed with aluminum (Al) or aluminum (Al), zinc (Zn), or a zinc alloy.
- the type of the rust preventing part 115 is not limited to the proposed embodiment, and may be replaced by using a metal material having a greater corrosiveness than the pipe provided.
- the outer circumference protection part 114 may have a length shorter than the lengths of the bodies 120a and 120b, whereby the outer circumference protection part 114 may not be exposed to the outside of the bodies 120a and 120b.
- length means the length along the axial direction of the pipe 200, that is, the x-axis direction of Figure 13, and the “length” described in the specification and claims of the present application, unless otherwise specified, It means the length along the x-axis direction.
- outer circumference protection part 114 may be provided to surround the entire outer circumferential surface of the rust prevention part 115.
- the outer circumference protection part 114 may have a length longer than that of the rust prevention part 115, thereby surrounding the rust prevention part 115 along the axial direction (x direction) of the pipe 200.
- the outer circumference protection part 114 and the rust prevention part 115 may be combined with an adhesive means such as an adhesive.
- the outer periphery protection unit 114 may be made of a material such as Teflon (Teflon), a composite synthetic resin containing Teflon, plastic, high strength polyethylene, para-aromatic polyamide or glass fiber (Glass Fiber).
- the rustproof part 115 and the outer circumferential protection part 114 are illustrated as members having a predetermined thickness, but this is only an example, and a film, foil, and tapeable material having a very thin thickness are illustrated. It is also possible to form such as.
- the rust preventive portion 115 of the anti-corrosion member 110 may serve as a sacrificial anode to minimize corrosion of the pipe 200.
- the outer circumferential protection unit 114 minimizes the exposure of the outer circumferential surface of the rust preventive unit 115 to water, air, or the like existing in the body. Therefore, the extent to which the rust preventive part 115 is naturally consumed can be reduced, and can function as a sacrificial anode for a longer period of time. That is, since the outer circumference protection part 114 is provided, the lifespan of the rust prevention part 115 is longer than before.
- the outer circumference protection part 114 has an effect of improving the tension of the rust prevention part 115 and reducing breakage.
- the rust-preventing portion 115 when it is formed very thin in the form of a film, foil, etc., it has a low tensile strength / yield strength of several hundred MPa, so the risk of breakage is high, but the outer protective part 114 at several tens of GPa Since it has a high tensile strength / yield strength of about several hundred GPa, the outer circumferential protection portion 114 is provided to have an effect that the damage to the rust preventive portion 115 can be minimized.
- the gap corrosion preventing member 110 and the rust preventive portion 115 are shown as being divided into two members above and below, but this is merely an example, and as one member. It is also possible to form. That is, the gap corrosion preventing member 110 and the rust preventive portion 115 are each formed as one member and taped to surround the outer circumferential surface, and the start portion and the end portion of the taping may be provided by bonding to each other through an adhesive or the like. .
- the entire outer circumferential surface of the gap corrosion preventing member 110 is shown to be in contact with the support 112, the spirit of the present invention is not limited thereto.
- a groove or a recess recessed from the surface in contact with the pipe 200 is formed in the support 112, so that only a portion of the outer circumferential surface of the gap corrosion preventing member 110 may contact the support 112.
- the gap corrosion preventing member 110 may include a finish protection unit 116 provided to surround the circumferential surface of the pipe 200.
- FIG. 17 is an exploded perspective view illustrating a gap corrosion preventing member according to a fourth exemplary embodiment of the present invention
- FIG. 18 is a perspective view illustrating a state in which the gap corrosion preventing member of FIG. 17 is assembled
- FIG. DD " is a perspective view illustrating a state in which the gap corrosion preventing member of FIG. 17 is assembled
- the gap corrosion preventing member 110 additionally includes a finish protection part 116.
- the finish protection unit 116 may have a shape in which an inner circumferential surface surrounds a circumferential surface of the pipe 200, and an outer circumferential surface is surrounded by an inner circumferential surface of the outer circumferential protection unit 114.
- the finish protection part 116 is arrange
- the "inner circumferential surface” means a surface (opposing surface) facing the circumferential surface of the pipe.
- finish protection unit 116 may be coupled with an adhesive means such as an outer circumferential protection unit 114 and an adhesive, and at this time, the inner circumferential surface of the outer circumference protection unit 114 and the outer circumferential surface of the final protection unit 116 may be closely coupled. Can be.
- the outer circumference protection part 114 and the finish protection part 116 may be formed of a single member. Through this, water, air, or the like may be prevented from flowing into the gap between the outer circumference protection part 114 and the finish protection part 116.
- the gap corrosion preventing member according to the present embodiment can prevent the extension surface 117 of the rust preventive portion from being exposed to water, air, or the like existing in the body.
- the extension surface 117 of the rust preventive portion means a surface perpendicular to the pipe extension direction (x-axis direction). Accordingly, since the exposed area of the rust preventive portion 115 is further reduced, there is an effect that the life of the rust preventive portion 115 may be longer.
- FIG. 20 is a schematic perspective view of a pipe to which a pipe clamp is coupled according to a fifth embodiment of the present invention.
- FIG. 21 is an enlarged view illustrating an enlarged view of a pipe clamp according to a fifth embodiment of the present invention.
- 23 is a schematic perspective view of a pipe clamp according to a fifth embodiment of the present invention, FIG. 23 is a schematic exploded perspective view of a pipe clamp according to a fifth embodiment of the present invention, and FIG. It is a schematic cross section.
- the pipe clamp 100 according to the fifth embodiment of the present invention is coupled to the pipe 200 to fix and install the pipe 200 in a predetermined installation area 20.
- 120 and the gap preventing member 110 may be included.
- the pipe 200 is a line through which a working fluid such as gas or oil flows, and may be installed in the installation region 20 by the body 120.
- the pipe 200 may perform a function of a passage for transferring a working fluid such as gas or oil to a predetermined destination, and may be provided with stainless steel or an alloy of stainless steel having excellent corrosion resistance and strength. have.
- the body 120 is provided to fix and support the pipe 200, and may be made of a plastic material.
- the body 120 may be made of Teflon or a composite resin material containing Teflon, a Teflon material containing plastic or glass fiber.
- the material of the body 120 may be changed to various materials commonly used in the art.
- Body 120 may be provided in a pair that is assembled to each other with the pipe 200 therebetween.
- the body 120 may be provided in a corresponding shape, and may be provided as a first body 120a and a second body 120b which are assembled to surround each other and surround the outer circumferential surface of the pipe 200.
- the first body 120a and the second body 120b may be provided in substantially the same configuration except for the configuration of the mounting hole 123 and the insertion hole 102.
- the body 120 will be described based on the configuration of the first body (second prevention member).
- the first body 120a may be provided with a support part 112 that is inserted inwardly and seats the gap corrosion preventing member 110 to be described later.
- the support part 112 may be provided to be drawn inwardly from the first body 120a to correspond to the outer surface shape of the gap corrosion prevention member 110.
- the present invention is not limited to this embodiment, but the shape of the gap corrosion preventing member 110 is limited to the shape of the gap corrosion preventing member 110. Accordingly, the support 112 of various shapes may be provided.
- Grooves 126 may be provided at both sides of the support part 112 to be spaced a predetermined distance apart.
- the groove 126 may be provided at both sides of the support part 112 in the longitudinal direction.
- the longitudinal direction refers to the y-axis direction with reference to FIG. 21.
- the recess 126 may be inserted inwardly from the first body 120a.
- the recess 126 may be provided in a shape corresponding to the outer surface of the flange portion 107 so that the flange portion 107 of the gap preventing member 110 to be described later is inserted.
- the inner surface of the groove 126 may contact the outer surface of the flange 107.
- the recess 126 may be provided in the width direction of the first body 120a.
- the width direction refers to the x-axis direction with reference to FIG. 21.
- the first body 120a may be provided with a mounting hole 123 for coupling with the second body 120b.
- the mounting hole 123 may be provided in a thickness direction at one side of the first body 120a to penetrate the first body 120a.
- the thickness direction means the z-axis direction with reference to FIG. 21.
- an insertion hole 102 may be provided in a portion of the second body 120b corresponding to the mounting hole 123 of the first body 120a.
- the mounting holes 123 and the insertion holes 102 may be provided to communicate with each other when the first body 120a and the second body 120b are coupled to each other.
- the first body 120a and the second body 120b may be coupled to each other by separate fastening members 130 screwed into the mounting hole 123 and the insertion hole 102.
- the reinforcing plate 150 may be provided on the upper side of the first body 120a. That is, the first body 120a and the second body 120b may be coupled by the fastening member 130 in a state where the reinforcing plate 150 is seated on the upper surface of the first body 120a.
- the mounting holes 123 of the first body 120a and the insertion holes 102 of the second body 120b may have different shapes.
- the mounting hole 123 may be provided to penetrate the first body 120a in the thickness direction, and the insertion hole 102 may be provided to penetrate a predetermined depth from the second body 120b.
- the insertion hole 102 may be provided to penetrate the second body 120b.
- the first body 120a and the second body 120b may be provided in the same shape.
- the fastening member 130 may restrain the first body 120a, the second body 120b, and the installation region 20. have.
- the second body 120b is substantially the same shape as the first body 120a except for the configuration of the insertion hole 102 in combination with the first body 120a to bind the pipe 200. Do.
- the support body 112 and the recess 126 may be provided in the second body 120b. Since the structure of the support part 112 and the recess 126 is the same as that of the 1st body 120a, detailed description is abbreviate
- 25 is a schematic perspective view of a gap corrosion preventing member provided in a pipe clamp according to a fifth embodiment of the present invention.
- the gap corrosion preventing member 110 may be disposed between the pipe 200 and the body 120 to surround the outer circumferential surface of the pipe 200, and the edge of the gap corrosion preventing member 110 may be included.
- the body 120 may be bent in the direction in which the body 120 is provided to be inserted into the body 200.
- the gap corrosion preventing member 110 may be provided to be in contact with the pipe 200.
- the gap corrosion preventing member 110 may be provided with a metal material having a greater metal reactivity than the pipe 200.
- the gap corrosion preventing member 110 may be formed of aluminum (AL) or an alloy in which tin (Sn), phosphorus (In) is mixed with aluminum (AL), zinc (Zn), or zinc alloy.
- the type of the gap corrosion preventing member 110 is not limited to the proposed embodiment, and may be replaced by using a metal material having a greater corrosiveness than the pipe provided.
- a battery is formed by a potential difference between the two metals.
- a relatively reactive metal becomes an anode and a small one.
- the metal becomes a cathode.
- the anode gives electrons and oxidizes to produce corrosion, while the cathode receives and reduces electrons to protect it from corrosion. Using this principle to prevent corrosion is called cathodic protection.
- the anode is called a sacrificial anode.
- the gap corrosion prevention part 200 in the pipe clamp 100 according to the fifth embodiment of the present invention may serve as a sacrificial anode to minimize corrosion of the pipe 200.
- the gap corrosion preventing member 110 is mounted on the support 112 of the first body 120a and is in contact with a part of the outer circumferential surface of the pipe 200 and the support of the second body 120b.
- the second prevention member 110b seated on the 112 and in contact with a part of the outer circumferential surface which is not in contact with the first prevention member 110a of the pipe 200 may be provided.
- first prevention member 110a and the second prevention member 110b may be provided in a corresponding shape. Therefore, hereinafter, the configuration of the first prevention member 110a will be described.
- the first prevention member 110a is provided in a shape corresponding to the outer circumferential surface of the pipe 200 and extends radially outwardly from the corroded portion 105 and the corroded portion 105 whose inner surface contacts the outer circumferential surface of the pipe 200. And a flange portion 107 bent in a direction in which the first body 120a is provided at the connecting portion 106 and the extended end of the connecting portion 106.
- the outer circumferential surface of the corrosion portion 105 may be provided in a shape corresponding to the support portion 112 of the first body 120a, and the inner circumferential surface may be provided in a shape corresponding to the outer circumferential surface of the pipe 200.
- the support body 112 of the first body 120a may be seated and fixed, and the inner circumferential surface may contact the pipe 200 to minimize corrosion of the pipe 200.
- connection 106 may be provided radially outward in the corrosion portion 105.
- the radial direction refers to a direction from left to right or vice versa with reference to FIG. 24.
- An extended end of the connecting portion 106 may be provided with a flange portion 107 bent toward the first body 120a.
- the flange portion 107 may be inserted into the recess 126 of the first body 120a.
- the flange portion 107 may correspond to the groove 126, and may be provided in the width direction.
- the inner circumferential surface of the groove 126 may be a flange portion ( 107 may be in contact with the outer peripheral surface.
- the second prevention member 110b may be provided in a shape corresponding to the first prevention member 110a.
- the second prevention member 110b may be provided as the corrosion part 105, the connection part 106, and the flange part 107. Since the configuration of the corrosion portion 105, the connection portion 106 and the flange portion 107 of the second prevention member (110b) is the same as the first prevention member (110a), detailed description is omitted and replaced with the above description.
- connection part 106 of the first prevention member 110a and the second prevention member 110b may be in contact with each other and surround one outer circumferential surface of the pipe 200.
- the groove 126 is formed in the body 120, and the flange portion 107 of the gap preventing member 110 is formed in the groove 126.
- the gap corrosion prevention member 110 may minimize corrosion of the pipe 200.
- the anti-corrosion member since the anti-corrosion member is not exposed in the body of the clamp, contact with external moisture and oxygen can be minimized, and the end of the anti-corrosion member is supported by the opening wall of the body.
- the corrosion preventing member can be easily fixed to the body, and by forming a coating layer on the outer circumferential surface of the pipe except for the surface where the corrosion preventing member is in contact, the corrosion product caused by the corrosion of the corrosion preventing member is generated inside the clamp. It can have an excellent advantage, such as that can be prevented.
Abstract
Description
In | Ga | Zn | Si | Cu | Fr | Hg | Sn | Mn | Mg | Cr | Al | |
희생 알루미늄전극 | 0.014-0.020 | N/A | 4.0-6.5 | 0.08-0.20 | 0.004max. | 0.09max. | 0.001max. | 0.001max. | Remainder | |||
알루미늄 합금(6061) | N/A | N/A | 0.25max. | 0.8max. | 0.4max. | 0.7max. | 0.15max. | 1.2max. | 0.35max. |
Claims (15)
- 배관의 외면을 감싸는 틈부식 방지부재; 및상기 틈부식 방지부재를 사이에 두고 조립되고, 양단부에 상기 배관이 관통되는 개구벽이 구비된 바디를 포함하고,상기 틈부식 방지부재는 상기 개구벽 간 거리와 동일한 길이로 제공되어, 상기 틈부식 방지부재의 끝단이 상기 개구벽에 의해 지지되는 배관용 클램프.
- 제 1 항에 있어서,상기 틈부식 방지부재는표면에 산화피막이 형성된 알루미늄 합금을 포함하는 배관용 클램프.
- 제 1 항에 있어서,상기 틈부식 방지부재의 내경은상기 개구홀의 내경보다 적어도 작은 직경을 갖는 배관용 클램프.
- 제 1 항에 있어서,상기 개구홀에는외측에 위치한 내경이 내측에 위치한 내경보다 적어도 더 큰 직경을 갖도록, 경사면이 마련되는 배관용 클램프.
- 제 1 항에 있어서,상기 틈부식 방지부재의 끝단에는 단턱부가 형성되고,상기 배관이 관통되는 상기 개구벽의 개구홀에는 상기 틈부식 방지부재의 단턱부가 지지되는 배관용 클램프.
- 제 5 항에 있어서,상기 틈부식 방지부재의 단턱부는상기 바디의 외부로 노출되지 않도록 상기 개구홀의 내경면에 적어도 접촉되게 지지되는 배관용 클램프.
- 제 5 항에 있어서,상기 단턱부에는외측에 위치한 내경이 내측에 위치한 내경보다 적어도 더 큰 직경을 갖도록, 경사면을 포함하는 배관용 클램프.
- 제 5 항에 있어서,상기 틈부식 방지부재는상기 배관의 상부 외경면을 감싸고, 상기 단턱부를 통해 상기 개구홀에 지지되는 제 1 방지부재와, 상기 배관의 하부 외경면을 감싸고, 상기 단턱부를 통해 상기 개구홀에 지지되는 제 2 방지부재를 포함하는 배관용 클램프.
- 제 1 항에 있어서,상기 틈부식 방지부재는상기 배관보다 금속 반응성이 큰 금속을 포함하고, 상기 배관의 둘레면을 둘러싸도록 배치되는 방청부와, 상기 방청부의 외주면을 둘러싸도록 배치되는 외주 보호부를 포함하는 배관용 클램프.
- 제 9 항에 있어서,상기 바디는 상호 조립되어 상기 배관의 둘레면을 감싸도록 구비되는 제 1 바디 및 제 2 바디를 포함하고,상기 제 1 바디 및 제 2 바디의 내부에는,상기 틈부식 방지부재가 안착되도록 상기 틈부식 방지부재의 외주면 중 적어도 일부에 대응하는 형상을 가지는 지지부가 구비되는 배관용 클램프.
- 제 9 항에 있어서,상기 방청부는 상기 외주 보호부의 길이보다 짧은 길이를 가지는 배관용 클램프.
- 제 11 항에 있어서,상기 틈부식 방지부재는상기 배관의 둘레면에 대응되는 형상의 내주면을 가지는 마감 보호부를 더 포함하고,상기 마감 보호부는 상기 방청부의 길이 방향 양측에 구비되며,상기 마감 보호부의 외주면은 상기 외주 보호부의 내주면에 밀착 결합되는 배관용 클램프.
- 제 1 항에 있어서,상기 틈부식 방지부재의 양단은상기 바디가 구비된 방향으로 절곡되어 상기 바디에 인입되고,상기 바디는상호 대응하는 형상으로 구비되고, 상호 조립되어 상기 배관의 외주면을 감싸도록 구비되는 제 1 바디 및 제 2 바디로 구비되며,상기 제 1 바디 및 제 2 바디에는 내측으로 인입되어 상기 틈부식 방지부재가 안착되는 지지부가 구비되는 배관용 클램프.
- 제 13 항에 있어서,상기 틈부식 방지부재는상기 제 1 바디의 지지부에 안착되고 상기 배관의 외주면 중 일부와 접촉되는 제 1 방지부재와, 상기 제 2 바디의 지지부에 안착되고 상기 배관의 상기 제1 방지부재와 접촉되지 않은 외주면의 일부와 접촉되는 제 2 방지부재로 구비되는 배관용 클램프.
- 제 13 항에 있어서,상기 제 1 방지부재와 상기 제 2 방지부재는,상기 배관의 외주면에 대응하는 형상으로 구비되어 내면이 상기 배관의 외주면에 접촉되는 부식부와, 상기 부식부에서 반경방향 외측으로 연장구비되는 연결부와, 상기 연결부의 연장된 단부에서 상기 제 1 바디 및 상기 제 2 바디를 향하여 각각 절곡된 플랜지부를 포함하는 배관용 클램프.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US15/762,793 US11268647B2 (en) | 2015-09-25 | 2016-09-23 | Clamp for pipe |
EP16849037.3A EP3354952A4 (en) | 2015-09-25 | 2016-09-23 | CLAMP FOR TUBE |
CN201680055647.1A CN108027089B (zh) | 2015-09-25 | 2016-09-23 | 管道夹持装置 |
JP2018515228A JP6626964B2 (ja) | 2015-09-25 | 2016-09-23 | 配管用クランプ |
SG11201802416PA SG11201802416PA (en) | 2015-09-25 | 2016-09-23 | Clamp for pipe |
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KR20150136538 | 2015-09-25 | ||
KR10-2015-0136538 | 2015-09-25 | ||
KR20150155817 | 2015-11-06 | ||
KR10-2015-0155891 | 2015-11-06 | ||
KR10-2015-0155898 | 2015-11-06 | ||
KR10-2015-0155817 | 2015-11-06 | ||
KR20150155898 | 2015-11-06 | ||
KR20150155891 | 2015-11-06 | ||
KR10-2016-0119818 | 2016-09-20 | ||
KR1020160119818A KR101874044B1 (ko) | 2015-09-25 | 2016-09-20 | 배관용 클램프 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10408365B2 (en) * | 2016-04-21 | 2019-09-10 | O'Brien Holding Co., Inc. | Tubing bundle supports and support systems |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135584A (ja) * | 1983-12-23 | 1985-07-18 | Mitsui Mining & Smelting Co Ltd | 配管の支持部における防食方法 |
KR19980056140U (ko) * | 1997-01-07 | 1998-10-15 | 이영우 | 파이프 지지장치 |
JP2010043307A (ja) * | 2008-08-11 | 2010-02-25 | Tokyo Electric Power Co Inc:The | 配管架台接触部の腐食防止装置 |
US20120056634A1 (en) * | 2010-09-03 | 2012-03-08 | Bp Corporation North America Inc. | Methods and devices for sensing corrosion under insulation (cui) |
KR101422171B1 (ko) * | 2011-06-29 | 2014-07-28 | 삼성중공업 주식회사 | 튜브용 클램프 |
-
2016
- 2016-09-23 WO PCT/KR2016/010722 patent/WO2017052312A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135584A (ja) * | 1983-12-23 | 1985-07-18 | Mitsui Mining & Smelting Co Ltd | 配管の支持部における防食方法 |
KR19980056140U (ko) * | 1997-01-07 | 1998-10-15 | 이영우 | 파이프 지지장치 |
JP2010043307A (ja) * | 2008-08-11 | 2010-02-25 | Tokyo Electric Power Co Inc:The | 配管架台接触部の腐食防止装置 |
US20120056634A1 (en) * | 2010-09-03 | 2012-03-08 | Bp Corporation North America Inc. | Methods and devices for sensing corrosion under insulation (cui) |
KR101422171B1 (ko) * | 2011-06-29 | 2014-07-28 | 삼성중공업 주식회사 | 튜브용 클램프 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3354952A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10408365B2 (en) * | 2016-04-21 | 2019-09-10 | O'Brien Holding Co., Inc. | Tubing bundle supports and support systems |
US11137089B2 (en) | 2016-04-21 | 2021-10-05 | Obcorp, Llc | Tube support system for conduit and tubing bundle spacer therefor |
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