WO2018104933A1 - The method of repair from inside of large diameter pipes - Google Patents

The method of repair from inside of large diameter pipes Download PDF

Info

Publication number
WO2018104933A1
WO2018104933A1 PCT/IL2017/051310 IL2017051310W WO2018104933A1 WO 2018104933 A1 WO2018104933 A1 WO 2018104933A1 IL 2017051310 W IL2017051310 W IL 2017051310W WO 2018104933 A1 WO2018104933 A1 WO 2018104933A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
pigs
clause
repair
diameter
Prior art date
Application number
PCT/IL2017/051310
Other languages
French (fr)
Inventor
Samuel Perstnev
Hanoh DERZAVICH
Moshe Shitrit
Aleksander PERSTNEV
Boris NATAPOV
Irina GINDES
Daniel RADKO
Aviv Nisan RADKO
Original Assignee
Samuel Perstnev
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 Samuel Perstnev filed Critical Samuel Perstnev
Publication of WO2018104933A1 publication Critical patent/WO2018104933A1/en

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
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
    • F16L55/16455—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes

Definitions

  • This invention relates to the field of pipe repair methods.
  • the method of repairing pipes from the inside is a part of pipe repair methods.
  • Figure 1 shows a diagram explaining the operation of the prototype method.
  • FIG. 2 is a schematic diagram explaining the operation of the method, according to the proposed technical solution.
  • these parts are installed cylinder 9.
  • It can be hollow and a spring 10 can be arranged inside it.
  • the latter by means of the stops 101 and 102, can act on 2 and 3 pigs .
  • the part 8 can have an empty cavity 81, closed by the valve 84. When the pigs 2 and 3 move along the pipe, they carry the parts 7 and 8 along of the cylinder 9.
  • this cylinder does not allow the particles 5 and 6 to move away from the inner surface of the tube 1. And when one of the particles moves near the hole 4 , she enters this hole and plugs it. Since the particles have a liquid hardening material, a solid plug is formed here.
  • the safety valve 84 which is installed in the cavity 81, is triggered.
  • the size of the diameter of the cylinder 9 must correspond to the relation
  • d - is the diameter of the cylinder 9 in cm
  • D - is the diameter of the pipe 1 to be repaired in cm
  • the reliability of repairing a large-diameter pipe will be the same as the reliability of repairing a pipe of smaller diameter.
  • the intended goal will be met. It is clear, that the additional cylinder can be with changing length.

Landscapes

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

Abstract

The method relates to internal lining of tubes through the insertion of two pigs, between which a curing material is inserted, said pigs are connected through a cylinder which forces the particles of the curing material towards the inner surface of the tube, thus providing efficient repair from inside.

Description

The method of repair from inside of large diameter pipes
This invention relates to the field of pipe repair methods. In particular, the method of repairing pipes from the inside.
A method for repairing pipes from the inside is known. A description of this can be found at www.curapjpe.com. In this case elastic particles are inserted into the tube. The particles are impregnated with reinforcing material. The elastic particles together with the liquid flow move inside the pipe.
When they pass through the hole in the tube, they, along with the entire flow, enter it and block from the inside. Over time, the particles harden and create a solid and reliable cork. Recently, this method is very common. But he also has shortcomings. Particles that are far from the inner surface of the pipe have practically no chance of being used. Especially this happens during the repair of large diameter pipes, for example, more than 8 inches.
It is an object of the present invention to overcome this disadvantage. This is achieved due to the fact, that an additional cylinder is installed between the front and rear pigs.
Figure 1 shows a diagram explaining the operation of the prototype method.
Here is a pipe requiring repair; 2- front pigs. ; 3-back pigs.; 4- hole in pipe 1, which must be closed during repair; 5 and 6 are the particles, in which the hardening material is located. It can be seen from FIG. 1, that the particle 5 and the particle 6 have a different possibility of being used for repair. So, a particle, that is far from the inside of all the pipes ,is practically useless.
Figure 2 is a schematic diagram explaining the operation of the method, according to the proposed technical solution. Here 1- pipe, 2-front pig., 3-rear pig; 4-holes in pipe 1, that during repair;5 and 6- elastic particles, impregnated with the composition, which after some time hardens, resulting in a solid plug;7 and 8-additional toroidal parts. In these holes these parts are installed cylinder 9. It can be hollow and a spring 10 can be arranged inside it. The latter, by means of the stops 101 and 102, can act on 2 and 3 pigs . The part 8 can have an empty cavity 81, closed by the valve 84. When the pigs 2 and 3 move along the pipe, they carry the parts 7 and 8 along of the cylinder 9. The presence of this cylinder does not allow the particles 5 and 6 to move away from the inner surface of the tube 1. And when one of the particles moves near the hole 4 , she enters this hole and plugs it. Since the particles have a liquid hardening material, a solid plug is formed here.
If the pressure in the pipe 1 is too large, then the spring 10 through the stops 101 and 102 resists the approach of the pigs. If this does not help completely and the pressure between the pigs 2 and 3 is greater, than desired, the safety valve 84, which is installed in the cavity 81, is triggered.
The size of the diameter of the cylinder 9 must correspond to the relation
d = kD-n (1)
Where: d - is the diameter of the cylinder 9 in cm, D - is the diameter of the pipe 1 to be repaired in cm;
K = 0, 45 ... 0, 5; n = 4 ... 8.
In this case, the reliability of repairing a large-diameter pipe will be the same as the reliability of repairing a pipe of smaller diameter. The intended goal will be met. It is clear, that the additional cylinder can be with changing length.

Claims

1. The method of repair from inside of large diameter pipes, in which the space between the rear and front horns to install additional toroidal elements in the holes ,in which a cylinder is installed, the diameter of which is smaller, than the diameter of the pipe.
2. The method of claim 1, wherein the cylinder diameter is selected by the empirical dependence of the bracket (1).
3. The method of claim 2 ,in which the cylinder is axially movable relative to the torus of the
shaped parts.
4. The meters according to clause 3, which establishes additional force elements,acting on the pigs.
5. The method according to clause 4, in which a spring is used as an element of force action.
6. The method according to clause 5, in which the spring is mounted inside the additional cylinder.
7. The method according to clause 6, in which the spring acts on the pigs through the stops.
8. The method of clause 7, in which the cylinder performs the ability to change its length with relative movement of the pigs.
9. The method according to clauses 1- 7 with the description, figures and empirical dependence.
PCT/IL2017/051310 2016-12-01 2017-12-03 The method of repair from inside of large diameter pipes WO2018104933A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL249372A IL249372A0 (en) 2016-12-01 2016-12-01 Method for repair inside
IL249372 2016-12-01

Publications (1)

Publication Number Publication Date
WO2018104933A1 true WO2018104933A1 (en) 2018-06-14

Family

ID=62491657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2017/051310 WO2018104933A1 (en) 2016-12-01 2017-12-03 The method of repair from inside of large diameter pipes

Country Status (2)

Country Link
IL (1) IL249372A0 (en)
WO (1) WO2018104933A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110586394A (en) * 2019-10-17 2019-12-20 马付林 Hydropower station pressure steel pipe integral inner wall anticorrosion construction device and anticorrosion construction method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394025A (en) * 1964-06-15 1968-07-23 Schlumberger Technology Corp Method and apparatus for coating a pipe
US4584963A (en) * 1983-12-28 1986-04-29 Tokyo Gas Co., Ltd. System for repairing joints in pipes laid underground
JPS62171770A (en) * 1986-01-22 1987-07-28 Kubota Ltd Device for lining inner surface of existing pipe
WO1990012241A1 (en) * 1989-04-06 1990-10-18 Insituform Group Limited Improvements relating to the lining of pipelines or passageways
US5230842A (en) * 1989-02-21 1993-07-27 Munde Bruce A Interior pipeline coating process
WO1998050725A1 (en) * 1997-05-03 1998-11-12 Advanced Engineering Solutions Limited Method of lining pipes
JP2001300368A (en) * 2000-04-24 2001-10-30 Soken:Kk Spray gun for coating inside of pipe
JP2006095495A (en) * 2004-09-30 2006-04-13 Sanyo Chem Ind Ltd Washing method of pipe
JP2016203441A (en) * 2015-04-20 2016-12-08 東芝プラントシステム株式会社 Lining device and lining method of tubular body inner surface

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394025A (en) * 1964-06-15 1968-07-23 Schlumberger Technology Corp Method and apparatus for coating a pipe
US4584963A (en) * 1983-12-28 1986-04-29 Tokyo Gas Co., Ltd. System for repairing joints in pipes laid underground
JPS62171770A (en) * 1986-01-22 1987-07-28 Kubota Ltd Device for lining inner surface of existing pipe
US5230842A (en) * 1989-02-21 1993-07-27 Munde Bruce A Interior pipeline coating process
WO1990012241A1 (en) * 1989-04-06 1990-10-18 Insituform Group Limited Improvements relating to the lining of pipelines or passageways
WO1998050725A1 (en) * 1997-05-03 1998-11-12 Advanced Engineering Solutions Limited Method of lining pipes
JP2001300368A (en) * 2000-04-24 2001-10-30 Soken:Kk Spray gun for coating inside of pipe
JP2006095495A (en) * 2004-09-30 2006-04-13 Sanyo Chem Ind Ltd Washing method of pipe
JP2016203441A (en) * 2015-04-20 2016-12-08 東芝プラントシステム株式会社 Lining device and lining method of tubular body inner surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110586394A (en) * 2019-10-17 2019-12-20 马付林 Hydropower station pressure steel pipe integral inner wall anticorrosion construction device and anticorrosion construction method thereof

Also Published As

Publication number Publication date
IL249372A0 (en) 2017-03-30

Similar Documents

Publication Publication Date Title
EP3236089B1 (en) Sealing plug for closing holes in walls and the like
BRPI0616452B8 (en) quinolines and their therapeutic use
CN204099670U (en) Super normal flow rate controls pipe valve automatically
WO2018104933A1 (en) The method of repair from inside of large diameter pipes
WO2014202338A1 (en) Sealing plug for closing holes in walls and the like
DK201470443A (en) Sealing device and method for sealing fractures or leaks in wall or formation surrounding tubeshaped channel
JP6934657B2 (en) Water stop ball
CN102995894A (en) Air bag type concrete hole pre-burying device and manufacturing method thereof
CN202708426U (en) Quick connecting device for fire hydrant
CN104901258A (en) Hole plugging device for cable conduit
CN202823700U (en) Air brush
CN103938613A (en) Freezing pipe injected grout non-return device
CN207246590U (en) It is lined with the pipeline of glass reinforced plastic pipe
EP3511145A4 (en) Device for injecting low-melting-point alloys or metals into an elastomer polymer mould, elastomer polymer mould used and method for operating the assembly
CN105064715A (en) Novel multifunctional flue injector
CN204457698U (en) Well water filling counter-flow resisting device
CN204585634U (en) For the sulfurizing mould of plough groove type pipe joint seal ring processing
CN105064713A (en) Novel filling glue injector
CN203893428U (en) Water inlet or outlet pipe assembly of water heater
CN211398611U (en) Fire-fighting signal butterfly valve
CN202284462U (en) Uniform steam injection bleeder for horizontal well
CN105396929A (en) Multi-pipe hydraulic forming equipment
CN105484515A (en) Stable and efficient fine opening glue injection barrel
CN205261133U (en) Plugging device with pressure
CN203857086U (en) Pull-down-type water diversion mechanism

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17878347

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17878347

Country of ref document: EP

Kind code of ref document: A1