WO2016137062A1

WO2016137062A1 - Device for leakage prevention and protection of pipe connection part, and method for preventing leakage in pipe connection part

Info

Publication number: WO2016137062A1
Application number: PCT/KR2015/007833
Authority: WO
Inventors: 김정수
Original assignee: (주)썬패치테크노
Priority date: 2015-02-26
Filing date: 2015-07-28
Publication date: 2016-09-01
Also published as: KR101561031B1

Abstract

The present invention relates to a device for leakage prevention and protection of a pipe connection part for pipe-connection of pipes, and a leakage prevention method using the same, the device comprising: a melt adhesive material which is in contact with and is melted and coupled to the outer surface of a certain portion including the pipe connection part and is configured to function as a coupling medium between the pipes and a leakage prevention material; a division type pipe connection member which covers a certain portion of the pipe connection part including the melt adhesive material, has a charging space formed therein for charging the leakage prevention material which is fused and coupled to the melt adhesive material, is integrally coupled and fixed to the pipes by means of the leakage prevention material charged in the charging space, and is capable of being extended and contracted via a division structure by means of a division line; and the leakage prevention material which is charged in the charging space formed in the division type pipe connection member, and is in contact with and is bonded and coupled to the melt adhesive material and the pipe connection member so as to prevent leakage of fluid from the pipe connection part. Accordingly, it is possible to increase efficiency in sealing treatment by means of the melt adhesive material having hot-melt adhesive properties and the leakage prevention material; induce and provide a stable coupling force with respect to the pipes; and effectively prevent fluid from leaking from the pipe connection part

Description

Leak prevention and protection device of pipe connection part and leak prevention method of pipe connection part

The present invention relates to a pipe joint leakage prevention technology for preventing the leakage of the pipe joint when connecting the synthetic resin pipe made of polyethylene or polypropylene, and more particularly, a structure in which the pipe joint is filled with a leakage preventing material and sealed. A leak prevention and protection device of the pipe connection provided to increase the coupling force of the leakage preventing material and the pipe connection, and to protect the pipe connection while preventing the compression or incompressible fluid inside the pipe from leaking through the connection by deformation of the pipe connection. And relates to a method of preventing leakage of the pipe connection.

In general, most of the structures included in the equipment for transporting or storing fluids are connected to pipes made of metal or non-metallic materials, and the related art related to the pipe connection part is a permanent joint joint structure including welding or a separate joint using a connector. The structure is adopted.

Prior art related to the permanent joint structure of the pipe line, even without looking at the specific prior art by the literature, when the joint is not made completely, the leakage of the fluid does not occur at the beginning of the joint, but long-term use or fine There is a frequent problem that fluid is leaked due to cracks in the joints due to deformation, and even if the joints to the joints are perfectly made, if a deformation such as a minute position shift occurs from the equipment connected to the pipeline, Compared to this, cracking of the joint proceeds rapidly and fluid leakage occurs through the joint, and it is obvious that such an accident causes a large accident, especially in a facility for storing or transporting dangerous substances.

In addition, most of the prior art of a separate coupling joint structure uses pipe fittings as a connector for connecting a pipe line and a pipe line, which are usually joined through screw joints, and are packed or O-rings to prevent leakage of fluid during screw joints. The seal is further employed to combine. However, in such a coupling joint structure, there is a problem in that fluid leaks from the joint due to various factors such as poor sealing due to long-term use, poor screwing, and deformation of the equipment connected to the pipeline.

In addition, pipe joints that are connected through welding or joints are generally weaker than the body of the pipe and are easily broken by external forces. In particular, in the case of tanks carrying dangerous substances exposed to a large number of unexpected external forces, the joints are connected by external forces. It is easily broken and leads to a large accident.

On the other hand, synthetic resin pipes made of polyethylene or polypropylene material are widely used in gas pipes, water pipes, oil pipes, sewer pipes because of excellent corrosion resistance and abrasion resistance, and strong chemicals, and the like, and synthetic resin pipes made of the polyethylene or polypropylene material There is a considerable difficulty and difficulty in connecting pipes between each other, which requires improvement.

In particular, the synthetic resin pipe made of polyethylene or polypropylene material has a chemical bond of carbon and hydrogen only due to the chemical structure of the material, and has a disadvantage in that affinity and bonding strength with other materials or materials are inferior.

For this reason, most of the pipes made of synthetic resin materials use a connector such as a welding method or a pipe fitting that melts and bonds the contact portions of the pipes through heating, and as described above, there is a problem in that the leakage preventing effect is inferior. .

In addition, conventionally, there is no special alternative, such as pipe connection between synthetic resin pipes made of polyethylene or polypropylene material, or pipe connection between metal steel pipes, and most of them use a clamp type pressure fixed coupling (connector).

The present invention has been made in view of solving the above-described problems and the like, and has a structure for filling and sealing the leak-tight material with a sticky portion in the pipe connection portion by compressive or incompressible fluid in the pipe due to deformation of the pipe connection portion It is an object of the present invention to provide a leak prevention and protection device for a pipe connection and a leak prevention method for a pipe connection using the same to prevent leakage through and protect the pipe connection.

In addition, the present invention in the pipe connection between the synthetic resin pipes of polyethylene or polypropylene material, to improve the intimacy and adhesiveness of the synthetic resin pipes with respect to the leakage preventing material effectively prevents fluid leakage from the pipe connection portion And it is an object of the present invention to provide a leak prevention and protection device and a leak prevention method of the pipe connection to protect the pipe connection.

An object of the present invention is to provide a leakage preventing and protecting device of the pipe connection and a leak prevention method of the pipe connection to enable easy installation and prevent damage to the pipe connection easily by an external force.

In order to achieve the above object, the present invention is a synthetic resin pipes of each other including a pipe connecting portion (3) connecting one pipe (1) and the other pipe (2) to form a pipe for storing or transporting fluid In the pipe connection, the molten adhesive material is in contact with the outer surface of the predetermined portion including the pipe connection part 3, and melted to function as a coupling medium between the pipe (1) (2) side and the leakage preventing member 130 (110) Covering a portion of the pipe connection portion 3 including the melt adhesive 110, but forms a filling space (S) for the filling of the leakage preventing material 130 is fusion-bonded to the melt adhesive therein; , Is integrally coupled and fixed to the pipe (1) (2) side by the leakage preventing material to be filled in the filling space (S), stretchable through the cut structure by the split line 123, the flexible pipe type member 120 Filled space formed inside the cut pipe connecting member 120 Filled in (S), characterized in that it comprises a leakage preventing member 130 to contact and adhesively coupled with the melt adhesive 110 and the pipe connection member 120 to prevent the leakage of fluid from the pipe connection (3) To prevent leakage and protection of pipe connections.

The dividing pipe connecting member is a connection part for connecting between the pipe fixing part of the ring-shaped pipe fixing part which is mounted in correspondence with each of the one side pipe and the other side of the pipe spaced apart from the pipe connection portion at a predetermined distance and the pipe fixing part. Located in the outer end of the integral portion is provided with a ring-shaped transparent pipe to form a filling space for the filling of the leakage preventing material therein, the pipe fixing portion and the transparent pipe formed integrally therein in the same straight line It is provided to be mounted on the pipe side by opening the cut-type pipe connecting member through the expansion of the inner diameter by forming the cut, the inlet for injecting the leakage preventing material is formed in the transparent tube portion is closed by the filling of the leakage preventing material do.

The leakage preventing material is a synthetic resin material having high thermal elongation and adhesiveness, and has a high elongation, and is filled into the filling space in a molten state to be adhesively cured. To form, the leakage preventing material is to be formed of a vinyl ester resin.

The molten adhesive material is one selected from ethylene vinyl acetate resin, polyolefin resin, and epoxy-containing polyolefin resin to provide strong bonding force by having adhesiveness with the synthetic resin pipe but also adhesiveness with a leakage preventing material. It is formed by species or combination.

In addition, in order to achieve the above object, the present invention in the pipe connection of the synthetic resin pipes including a pipe connection for connecting one pipe and the other pipe to form a pipe for storing or transporting fluid, ( A) Hot melt adhesion and hardening of a hot melt adhesive comprising at least one selected from ethylene vinyl acetate resin, polyolefin resin, and epoxy-containing polyolefin resin on the outer surface of a portion including a pipe connection part connecting one pipe and the other pipe. Step (B) to form a molten adhesive layer by including a transparent pipe portion having an injection port on one side and a pipe fixing portion which is formed integrally extending to both ends of the transparent pipe portion, and the ring-shaped cut through a cut structure by a cut line It is provided with a pipe-type member, but through the expansion of the inner diameter using an external force Inserting the cover to cover a predetermined portion of the pipe including the pipe connection part (C) by inserting the cut-type pipe connection member into the filling space formed between the pipe connection part and the leakage preventing material of the vinyl ester resin. Forming a leakage prevention layer that prevents fluid from leaking from the pipe connection while integrating one pipe including the pipe connection part and the other pipe and the cut pipe connection member by means of the adhesive bonding and cure by melting in a molten state. To provide a method of preventing leakage of the pipe connection comprising the step.

Before performing step (A), the pipe welding step of melting and adhering the connection parts of the pipes by heating to the pipe connection part 3 of the one pipe 1 and the other pipe (2).

According to the present invention, it can be sealed by filling the adhesive leakage preventing material to the pipe connection portion of the pipe, by applying a hot melt adhesive melt adhesive material to induce and provide a stable coupling force with the pipe side as a coupling medium, It is possible to prevent the compressible or incompressible fluid inside the pipe from leaking through the pipe connection due to deformation of the pipe connection or the like, while achieving a useful effect of protecting the pipe connection.

In particular, in the pipe connection of the synthetic resin pipes of polyethylene or polypropylene, sealing can be improved by increasing the intimacy and adhesiveness with the synthetic resin pipes, and it is possible to effectively prevent the leakage of fluid from the pipe connection.

The present invention in the pipe connection of synthetic resin pipe made of polyethylene or polypropylene material, it is possible to improve the disadvantages that the affinity and bonding strength with other materials or materials due to the existing non-adhesive physical properties, the melt adhesive and leakage prevention The dual structure of the ash can increase the adhesiveness and bonding force with the pipe side, and can achieve a useful effect that can easily prevent and easily install the pipe connection by external force.

1 is a view showing a state in which the use of the device for preventing leakage and protection of the pipe connection according to the invention.

2 is a cross-sectional view of FIG. 1 in accordance with the present invention.

Figure 3 is a view showing a cross-sectional view of the cut pipe connecting member in the leakage preventing and protecting device of the pipe connection according to the invention.

4 is a flowchart illustrating a leak prevention method of the pipe connection portion according to the present invention.

The present invention will be apparent from the preferred embodiments described below, but the embodiments are merely examples for explaining the present invention, and are not intended to limit the scope of the present invention, and equivalent to the embodiments. It is to be understood that the description includes all the techniques.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Leak prevention and protection device 100 of the pipe connection portion according to an embodiment of the present invention, as shown in Figures 1 to 3, one side pipe (1) to form a pipe (pipe) for storing or transporting fluid In the pipe connection between the synthetic resin pipes including the pipe connecting portion (3) connecting the other pipe (2), the pipe connecting portion (3) and its neighbors to prevent fluid from leaking from the pipe connecting portion (3) It is installed in a structure covering a predetermined portion including the outside of the portion to be.

In this case, the pipe (1) (2) is defined as a synthetic resin pipe of polyethylene or polypropylene material.

Specifically, the leakage preventing and protecting device 100 of the pipe connection according to the present invention is in contact with the outer surface of the predetermined portion including the pipe connection part 3 is melt-bonded and prevent leakage with the pipe (1) (2) side The melt adhesive 110 and the melt adhesive 110 provided to function as a bonding medium with the ash 130, including the melt adhesive 110 to cover a certain portion of the pipe connection portion 3 is in contact with the melt adhesive inside the adhesive It is provided to form a filling space (S) for the filling of the leakage preventing material 130 to be coupled and is integrally coupled and fixed to the pipe (1) (2) side by the leakage preventing material filled into the filling space (S) Filled pipe connecting member 120 provided to be stretchable through the cutting structure by the line 123 and the filling space (S) formed inside the cut pipe connecting member 120 and the melt adhesive layer ( 110 and the adhesive member in contact with the pipe connecting member 120, the pipe connecting portion (3) From comprises a configuration that includes a material 130, the leak-barrier adapted to prevent leakage of fluid.

The melt adhesive 110 is preferably configured to provide a strong bonding force by having an adhesiveness with the synthetic resin pipe (1) (2) while also having an adhesiveness with the leakage preventing material (130). In addition, the synthetic resin pipe (1) (2) made of a polyethylene or polypropylene material is preferred to be able to increase the mutual bonding strength.

For example, it may be made of any one or a combination of ethylene vinyl acetate resin, polyolefin resin, and epoxy-containing polyolefin resin having thermoplasticity and adhesiveness.

The melt adhesive 110 of the above example is a thermoplastic synthetic resin material capable of chemically bonding with polyethylene or polypropylene and has excellent adhesiveness, and may exhibit flexibility in external force.

The dividing pipe connecting member 120 is a ring-shaped pipe fixing part 121 is installed to correspond to each of the one pipe (1) and the other pipe (2) at a position spaced apart from the pipe connection portion (3). And, the ring for connecting the connection between the pipe fixing part 121 is located at the outer end of the pipe fixing portion is provided integrally to form a filling space (S) for the filling of the leakage preventing material 130 therein It includes a transparent tube portion 122 of the form.

In this case, the pipe fixing member 121 and the transparent pipe portion 122 integrally formed thereon are cut-type pipe connecting members 120 through expansion of an inner diameter using external force by cutting and forming a cut line 123 in the same straight line. Is provided so as to be fitted to the pipe side from the outside of the pipe (1) (2).

The transparent pipe part 122 will form an injection hole 122a for injecting the leakage preventing material 130 and will be closed by the filling of the leakage preventing material 130.

The pipe-shaped fixing member 121 and the transparent pipe part 122 formed integrally with each other are formed of a synthetic resin material which is flexible and secured by external force.

Here, the pipe fixing portion 121 and the transparent tube portion 122 may be formed in a structure that can be separated and assembled to each other, in this case, the pipe fixing portion 121 is formed of a synthetic rubber material or synthetic resin material The transparent pipe portion 122 may be formed of a synthetic resin material.

In addition, the transparent tube portion 122 is preferably a transparent configuration, but may also be an opaque configuration may be formed at this time may be formed of a synthetic rubber material.

The pipe fixing part 121 forms a tightening band installation groove 121a for installing the tightening band 140 along the outer circumference of the body to form a split pipe connecting member 120 on one side and the other side of the pipe 1. (2) After mounting, make it possible to fix more stably.

At this time, the tightening band 140 is preferably a screw tightening synthetic resin tightening band or a screw tightening steel tightening band or cable tie tightening synthetic resin tightening band is generally used.

The leakage preventing material 130 is preferably a synthetic resin material having a high thermal elongation and adhesiveness and a high elongation in order to increase the efficiency of leakage prevention, which is filled in the filling space (S) in a molten or resin state and is cured adhesively. , One side pipe (1) including the pipe connection portion (3) and the other side pipe (2) and cut-type pipe connection member 120 to form an integrated structure.

The leakage preventing material 130 is preferably used as a vinyl ester resin, it is preferable to be filled in a molten state in order to improve adhesion and bonding strength, the vinyl ester resin is dissolved in styrene by reacting acrylic acid to the epoxy resin It is a thermosetting synthetic resin material with strong adhesiveness and high elongation as a compound.

That is, the leakage preventing material 130 can form a leakage preventing layer having a good elongation in the filling space (S) by using a vinyl ester resin, the melt adhesive to be a coupling medium with the pipe (1) (2) It may form a stable bond with (110).

The leakage preventing member 130 may increase the bonding strength because it melts the melt adhesive 110 having thermoplasticity and adhesiveness by filling in a molten state and chemically bonds and fuses the melt adhesive.

A leak prevention method of the pipe connection part using the leakage preventing and protecting device 100 according to the present invention having the above-described configuration will be described with reference to FIGS. 1 to 4.

It is a very useful technique for performing pipe connection between synthetic resin pipes including pipe connection part 3 connecting one pipe 1 and the other pipe 2 to form a pipe for storing or transporting a fluid. The pipe (1) (2) is made of polyethylene or polypropylene material.

As the pretreatment step, the pipes are welded by melting and adhering abutting portions of the pipes through heating to the pipe connecting portions 3 of the one pipe 1 and the other pipe 2 (S10).

The pipe welding step (S10) is a process that can increase the efficiency for preventing the leakage of the fluid through the pipe connection 3, but may be a step that does not have to be performed.

Subsequently, the pipe connecting portion 3 includes a melt adhesive 110 made of any one or a combination of ethylene vinyl acetate resin, polyolefin resin, and epoxy-containing polyolefin resin, and connects one pipe 1 and the other pipe 2 to each other. The molten adhesive layer is formed on the outer surface of the pipes (1) and (2) by applying and curing the molten adhesive 110 on the outer surface of the predetermined portion including () (S20).

The melt adhesive layer formed by the melt adhesive 110 is a bond to form and maintain a stable bond between the synthetic resin pipe (1) (2) and the leakage preventing material 130 to be filled onto their pipe connection (3) It is intended to function as an intermediary.

Subsequently, the transparent pipe part 122 having the injection hole 122a at one side thereof and a pipe fixing part 121 extending integrally at both ends of the transparent pipe part 122 are integrally formed, and have a cut structure formed by the cut line 123. Pipe (1) (2) having a ring-shaped pipe connecting member 120 of the ring-type stretchable through, and including a pipe connecting portion (3) by opening the cut-type pipe connecting member (120) by expanding the inner diameter using an external force. Mounted by fitting to the pipe side to cover a certain portion of (S30).

Since the cut-type pipe connecting member 120 is a stretchable configuration, an external force is applied to the split line 123 to open the cut portion of the body so that the inner diameter can be expanded and opened. In this state, the pipe of the pipe (1) (2) It is just inserted into the connecting portion (3) side, the expansion and open the inner diameter immediately returned to its original state, both ends are contacted and compressed and mounted on the pipe (1) (2) side.

That is, the cut pipe connecting member 120 can be very simply mounted on the pipe (1) (2) side through a flexible ring-shaped body configuration having a split line 123.

At this time, the fastening band 140 is fastened to the fastening band installation groove 121a formed at the outer circumference of the pipe fixing part 121 to stabilize the pipe fixing part 121 on one side pipe 1 and the other side pipe 2. May be fixed.

In addition, the cut line 123 of the cut pipe connecting member 120 may be sealed with an adhesive.

Subsequently, the leakage preventing material of the vinyl ester resin is inserted into the filling space S formed between the

pipe

1, 2 and the pipe connection 3 by fitting and fixing the cut pipe connection member 120. Filling (130) in a molten state to form a leakage prevention layer by adhesive curing (S40).

The leakage preventing material 130 may be injected into the filling space S through the injection hole 122a of the transparent pipe part 122, and thus is filled in a molten state to be fused while melting the melt adhesive layer formed by the melt adhesive 110. While fusion, it is possible to achieve a stable bond, such as to form a chemical bond with each other, one side pipe (1) and the other side pipe (2) including the pipe connection portion (3) through the melt adhesive layer and the separation pipe connection member 120 It is possible to prevent the fluid from leaking from the pipe connection portion 3 while integrating the.

At this time, the injection hole 122a of the transparent tube portion 122 may be sealed by curing by filling of the leakage preventing material 130, and the leakage preventing material 130 is visually confirmed through the transparent tube portion 122. It can be charged and can also be managed while visually confirming the state of the leakage preventing layer.

Accordingly, in the present invention, in the pipe connection of the synthetic resin pipe (1) (2) made of polyethylene or polypropylene material, it is possible to improve the disadvantages that the affinity and bonding strength with other materials or materials due to the existing non-adhesive properties It is possible to increase the adhesiveness and bonding strength of the pipe (1) (2) side by the dual configuration of the melt adhesive 110 and the leakage preventing member 130, and the pipe connection of the pipe (1) (2) In 3) it is possible to effectively prevent the leakage of fluid and to protect the pipe (3).

The embodiments described above are merely illustrative of the preferred embodiments of the present invention, and are not particularly limited to these embodiments, and may be modified or modified by those skilled in the art within the spirit and scope of the present invention. Substitutions may be made, which will fall within the technical scope of the present invention.

Claims

In the pipe connection of the synthetic resin pipes comprising a pipe connection portion (3) connecting the one pipe (1) and the other pipe (2) to form a pipe for storing or transporting the fluid,

Melt adhesive 110 which is in contact with the outer surface of the predetermined portion including the pipe connection portion 3 is melt-bonded, and functions as a coupling medium between the pipe (1) (2) side and the leak-proof material (130)

Covering a portion of the pipe connection portion 3 including the melt adhesive 110, but forms a filling space (S) for the filling of the leakage preventing material 130 is fusion-bonded to the melt adhesive inside, filling space (S) is integrally coupled and fixed to the pipe (1) (2) side by the leak-proof material, stretchable through the separation structure by the separation line 123, the flexible pipe type connecting member 120

Filled in the filling space (S) formed in the split pipe connecting member 120, and contact and adhesively coupled to the melt adhesive 110 and the pipe connecting member 120 to leak the fluid from the pipe connection (3) Leakage prevention and protection device of the pipe connection, characterized in that it comprises a leakage preventing material (130) to prevent.
The method of claim 1,

The dividing pipe connecting member 120 is a ring-shaped pipe fixing portion 121 which is mounted to correspond to each of the one side pipe (1) and the other side pipe (2) at a position spaced apart from the pipe connection portion (3). )

A ring-shaped connection part for connecting between the pipe fixing part 121 is formed integrally located at the outer end of the pipe fixing part to form a filling space (S) for the filling of the leakage preventing material 130 therein. Including a transparent tube 122,

In the pipe fixing part 121 and the transparent pipe part 122 integrally formed thereon, the cutting pipe 123 is opened to form a cut pipe connecting member 120 through the internal diameter expansion using external force by cutting and forming the cut line 123 in the same straight line. It is provided to be mounted on the pipe (1) (2) side,

The transparent pipe part 122 is formed with an injection hole (122a) for injecting the leakage preventing material 130, the leakage preventing and protecting device of the pipe connection, characterized in that closed by the filling of the leakage preventing material (130).
The method of claim 1,

The leakage preventing member 130 is formed of a synthetic resin material having a thermosetting property and adhesiveness and a large elongation, and is filled in the filling space in a molten state to be adhesively cured, and the one side pipe 1 including a pipe connection part 3 and Leakage prevention and protection device of the pipe connection, characterized in that the other side pipe (2) and the cut-type pipe connection member 120 is formed in an integrated structure.
The method according to claim 1 or 3,

The leakage preventing material 130, the leakage preventing and protecting device of the pipe connection, characterized in that made of a vinyl ester resin.
The method of claim 1,

The melt adhesive 110, while having an adhesiveness with the synthetic resin pipe (1) (2) and also having an adhesiveness with the leakage preventing material 130 to provide a strong bonding force ethylene vinyl acetate resin , Polyolefin resin, epoxy-containing polyolefin resin any one or a combination selected from the pipe connection leakage prevention and protection device.
In carrying out the pipe connection of the synthetic resin pipes including a pipe connecting portion (3) connecting the one pipe (1) and the other pipe (2) to form a pipe for storing or transporting the fluid,

(A) A pipe connecting portion (3) connecting one pipe (1) and the other pipe (2) to a melt adhesive (110) made of any one or a combination selected from ethylene vinyl acetate resin, polyolefin resin, and epoxy-containing polyolefin resin. Hot-melt bonding and curing the outer surface of a portion including a step of forming a melt adhesive layer

(B) a transparent pipe part 122 having an injection hole 122a at one side and a pipe fixing part 121 extending integrally at both ends of the transparent pipe part and integrally formed and being stretched through a cutting structure by the separating line 123. Arrangement of the pipe (1) (2) comprising a pipe-shaped connecting member 120 of the ring-shaped possible, including the pipe-connecting portion (3) by opening the cut-type pipe connecting member 120 through the internal diameter expansion using an external force Insert step to cover the part

(C) Filling the space (S) formed between the pipe portion (3) by fitting the separation pipe fitting member 120 is filled with the leakage preventing material 130 of the vinyl ester resin in the molten state By adhesive curing, fluid leaks from the pipe connection part 3 while integrating one pipe 1 including the pipe connection part 3, the other pipe 2, and the split pipe connection member 120 through the melt adhesive layer. Leakage prevention method of the pipe connection comprising the step of forming a leakage preventing layer to prevent it.
The method of claim 6,

Before performing the step (A) further comprises a pipe welding step of melting and bonding the connecting portion of the pipe by heating the pipe connection portion 3 of the one side pipe (1) and the other side pipe (2). To prevent leakage of pipe connections.