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WO2025037155A1 - Pince soudée pour réparer une fuite de tuyau active - Google Patents

Pince soudée pour réparer une fuite de tuyau active Download PDF

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Publication number
WO2025037155A1
WO2025037155A1 PCT/IB2024/054593 IB2024054593W WO2025037155A1 WO 2025037155 A1 WO2025037155 A1 WO 2025037155A1 IB 2024054593 W IB2024054593 W IB 2024054593W WO 2025037155 A1 WO2025037155 A1 WO 2025037155A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
pipelines
welding
branches
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/IB2024/054593
Other languages
English (en)
Inventor
Mohammadmahdi SHARIFIAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2025037155A1 publication Critical patent/WO2025037155A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe

Definitions

  • This invention involves designing and manufacturing a part intended as a seal for steel pipelines without the need for cutting off branches.
  • the components of this part include an active pipe leakage-welding clamp, a saddle, a water outlet part, a rubber washer, a flange, as well as external and internal holders.
  • This part finds utility in pipelines and branches within refineries, power plants, urban water and sewage networks, and gas supply lines, all without interrupting the flow.
  • a protective sleeve is plastically deformed to dimensions enabling the shape of the sleeve to correspond to the shape of the interior surface of the pipes to be joined in the joint region.
  • the deformed sleeve is installed inside the pipes to be joined such that an annular cavity is formed between the sleeve and the region of the welded joint together with the adjacent portions of the pipes protected by a coating.
  • the ends of the pipes are joined by welding and the annular cavity is hermetically sealed at the ends of the sleeve. Once sealed, the cavity is evacuated and, via working apertures in one or both of the pipes to be joined, the annular cavity is filled with a liquid sealing material, which is then polymerized.
  • a steel cushioning ring can additionally be positioned between the sleeve and the welded joint, wherein the outside surface of said cushioning ring contacts with the surface of the welded joint and the inside surface of the cushioning ring is provided with projections, which contact with the outside surface of the sleeve.
  • the ends of the pipes are welded to the steel cushioning ring.
  • a weld joint for a fuel injection nozzle assembly and the like characterized in that axially interfitting tubular parts define there between an annular groove or gap of which one side has an axial step radially spaced outwardly from the bottom of the groove and radially spaced inwardly from the radially outer edge of the side of the groove.
  • a metallic filler ring axially spans said groove and is coaxially located by said step to radially outwardly space its inside and outside surfaces respectively from the bottom of said groove and from the radially outer edges of the sides of said groove. The outside surface of the filler ring extends radially outward beyond the outer portions of the sides of the groove.
  • the protruding portion of the weld ring permits fusion welding of the parts without addition of weld filler material. After the parts are welded together, the weld ring is integrally bonded to the adjacent portions of the sides of the groove to form a strong leak-proof joint between said nozzle parts.
  • a flow divider valve or the like contained within the nozzle assembly can be repeatedly serviced or replaced by simply cutting through the filler ring with the point or tip of the tool entering the space between the bottom of the groove and the inside surface of the filler ring thus to permit separation of the nozzle parts where they are axially interfitted without burn up of the tip of the tool and to permit subsequent reassembly and welding of said parts with the filler ring being the only new part required.
  • Both ends of a bellows-type outer cylinder [31] capable of axial expansion and contraction are connected in a leak-proof manner to a pair of connection passage ends [20], thereby constituting an expansion passage [30].
  • a cylindrical resin film [33] having no permeability to fluid is arranged in an interior of the bellows-type outer cylinder [31], and the axial ends thereof are connected in a leak-proof manner to said connecting passage end regions.
  • the cylindrical region [34] positioned in the intermediate region of the cylindrical resin film [33] covers the inner surface of said bellows-type outer cylinder [31] in a leak-proof manner.
  • an inner sleeve and an outer sleeve may be slidably superposed to form an expansion outer cylinder.
  • the invention relates to a leak-proof protection device for a high voltage cable splice.
  • the device comprises two elements that are prefabricated in a factory.
  • the element comprises a copper tube in the form of a first cylindrical segment, which matches the diameter of a cable that is to be spliced, a second cylindrical segment of a diameter that matches a splice body, and an interconnecting conical segment.
  • a preformed insulating covering covers the metal tube in part and is secured thereto.
  • the second element also has a copper tube and a preformed insulating element of synthetic material. The two elements are assembled together in leak-proof by welding together the ends of the two tubes and by coupling their coverings.
  • the implementation of the leak-resistant piece for welded joints effectively resolves the limitations and issues associated with water leakage.
  • the installation process involves first selecting the appropriate part matching the pipe diameter. Subsequently, the upper and lower parts of the holder are fixed around the pipe and the leaky section using welding. Next, we weld the selected part onto the designated sections to ensure that water flow is directed solely towards the drainage outlet. Following this, we securely fasten the washer and cap onto the washout using bolts and nuts to achieve complete sealing. Additionally, we weld the external retaining parts to restrain the part and to prevent pressure on the part.
  • Clamps are crafted from materials resistant to rapid corrosion. To extend their lifespan, waxes and paints are applied to their surface, preventing easy penetration of oxygen and moisture into the structure of the seal. In this scenario, the leak on the pipeline can be effectively sealed by securing the seal clamp around the affected area.
  • Pipeline seal clamps find application in repairing various types of pipelines, whether on the ground or even underwater. Essentially, it acts as a mechanical connection that is installed onto the pipeline. Pipelines across diverse sectors such as refineries, power plants, municipal water and sewage networks, gas distribution lines, and more, often encounter damage ranging from minor to severe. Among these damages, local cracking and piercing of the pipes are common occurrences.
  • Pipelines serve critical roles across various sectors including refinery industries, power plants, particularly combined cycle power plants, petrochemical units and industries, and urban infrastructure networks such as water and gas distribution systems. These pipelines are utilized for the conveyance of both gaseous and liquid fluids. When pipeline damage is minor and leakage is not extensive, leak-resistance joints are employed to seal the leaks effectively. If the leakage is not widespread, it may not be economically justified to locally replace the pipe. In such cases, it is more prudent to repair the pipeline using the most cost-effective method available. In such scenarios, leak-resistance joints are utilized for repairing the pipeline. One of these connections is known as the split sleeve. Fiberglass coating combined with epoxy resin is a prevalent technology utilized for repairing water pipe leaks.
  • a clamp bracket is indeed categorized as a type of clip and is widely regarded as an excellent choice for repairing leaks in sewage and water pipes. Certainly, this type of clip is specifically designed for use on the outer surface of small diameter pipes.
  • pipelines operate under high pressure and are occasionally subjected to elevated temperatures. Over time, the pipe wall undergoes changes due to interactions with the fluid being transported and the surrounding environment. The corrosive external environment and the high velocity of fluids within the pipe contribute to erosion and corrosion of steel pipes. In refineries, the majority of fluids flowing within the pipes, often at high temperatures, contribute to internal corrosion.
  • Metal water pipes are also vulnerable to developing punctures and experiencing leaks. Metal pipes can also suffer from issues such as corrosion, rusting, and the development of holes or cracks over time. This product facilitates the repair of non-flammable fluid transmission lines, such as water or sewage systems operated by steel pipes. Additionally, recognizing the significance of uninterrupted service, this product enables leak repairs through welding without the need for a complete deactivate or drainage of the pipeline.
  • Steel pipes are elongated hollow structures with a circular cross-section, commonly utilized in construction applications. The presence of diverse methods for producing steel pipes has led to a variety of sections, each with its own set of advantages and disadvantages, tailored to specific application ranges. Steel pipes, also referred to as steel tubes, offer enhanced strength to foundations and are extensively employed in construction endeavors. Steel products can be recycled repeatedly without any loss in quality.
  • a pipe clamp commonly referred to as a holder clip, is a tool designed to securely hold pipes in position, enabling them to be aligned for welding and subsequently joined together.
  • water leakage can be repaired without the need for water interruption. This is crucial as water interruption can lead to numerous problems, some of which may be irreparable.
  • the installation process is as follows: Firstly, the appropriate part is selected based on the diameter of the steel pipe, the extent of the damage, or the size of the coupling to be repaired. Next, after selecting the part of the water-filled pipe and inspecting the area surrounding the installation site, and if excavation is necessary, the site is prepared for repair. In addition, according to the position of the pipe and the condition of the soil, saddles are installed if needed to perform the operation. (Following physical measurements of the leak location and calculation of dimensions, the selected part is installed at the designated location.)
  • the installation process begins by securing the upper part of the holder (Map No. 11- Figure No. 10-3) and the lower part of the holder (Map No. 11- Figure No. 11-3) around the pipe and the leaking section using welding techniques.
  • external retaining parts No.
  • the distinguishing feature of the connecting part used compared to parts available in the market is its mechanical design, which incorporates washers between these parts. Over time, these washers deteriorate, leading to leaks and breakages. In contrast, the part designed by me boasts high resistance, once installed; it integrates into the pipe without necessitating any water interruption.
  • the proposed plan is applicable across various industrial sectors, including refineries, power plants, municipal water and sewage networks, gas distribution lines, etc., especially when encountering damage ranging from minor to severe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

La présente invention comprend la conception et la fabrication d'une pièce destinée à faire office de joint d'étanchéité pour des canalisations en acier sans qu'il soit nécessaire de découper des ramifications. Les composants de cette pièce comprennent une pince de soudage pour fuite de tuyau active, une selle, une partie de sortie d'eau, une rondelle en caoutchouc, une bride, ainsi que des supports externe et interne. Cette pièce trouve une utilité dans des canalisations et des ramifications dans des raffineries, des centrales électriques, des réseaux d'eau urbains et d'eaux usées, et des conduites d'alimentation en gaz, ceci, sans interruption de l'écoulement.
PCT/IB2024/054593 2023-08-13 2024-05-11 Pince soudée pour réparer une fuite de tuyau active Pending WO2025037155A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IR14023003480 2023-08-13
IR140250140003003480 2023-08-13

Publications (1)

Publication Number Publication Date
WO2025037155A1 true WO2025037155A1 (fr) 2025-02-20

Family

ID=94633210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2024/054593 Pending WO2025037155A1 (fr) 2023-08-13 2024-05-11 Pince soudée pour réparer une fuite de tuyau active

Country Status (1)

Country Link
WO (1) WO2025037155A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101192096B1 (ko) * 2010-09-17 2012-10-17 한전케이피에스 주식회사 배관 누설부 차단장치 및 시공방법
KR200491291Y1 (ko) * 2019-09-11 2020-03-16 김규학 상수도관 무단수 보수공사용 누수차단장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101192096B1 (ko) * 2010-09-17 2012-10-17 한전케이피에스 주식회사 배관 누설부 차단장치 및 시공방법
KR200491291Y1 (ko) * 2019-09-11 2020-03-16 김규학 상수도관 무단수 보수공사용 누수차단장치

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