KR101818324B1 - Electro-fusion apparatus for transfer tube of fluid including chemical material - Google Patents
Electro-fusion apparatus for transfer tube of fluid including chemical material Download PDFInfo
- Publication number
- KR101818324B1 KR101818324B1 KR1020160026110A KR20160026110A KR101818324B1 KR 101818324 B1 KR101818324 B1 KR 101818324B1 KR 1020160026110 A KR1020160026110 A KR 1020160026110A KR 20160026110 A KR20160026110 A KR 20160026110A KR 101818324 B1 KR101818324 B1 KR 101818324B1
- Authority
- KR
- South Korea
- Prior art keywords
- pipe
- fused
- section
- heating wire
- pipes
- Prior art date
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Classifications
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
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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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
Abstract
According to an embodiment of the present invention, since the fused protrusions are fusion-bonded to the ends of the pipes three-dimensionally, the fins are prevented from being exposed to the outside Thus, it is possible to prevent the coating of the heating wire from being corroded by the chemical in the environment where the chemical substance is used, and also to prevent the leakage of the chemical substance to the outside through the heating wire.
Description
TECHNICAL FIELD The present invention relates to an electric welding apparatus for a transfer tube for a fluid including a chemical substance for connecting a chemical material pipe, a gas pipe, a water pipe, or a synthetic pipe used for other purposes.
In order to obtain a perfect airtightness in joining a pipe made of a material such as a polyethylene pipe or a polypropylene which is used for a gas pipe, a water pipe or other purposes, a heat fusion method has been basically used.
Conventional heat welding methods include Butt Fusion Welding, Heat Fusion Socket Welding, and Electro Fusion Socket Welding.
The butt fusion method is a so-called butt welding method in which different pipe cross sections and cross sections are butted against each other without using a separate connection socket to join the pipes to each other, The surface to be melt-bonded is subjected to a surface treatment, the hot plate is placed therebetween, and the pipe joining section is pressurized and adhered by hydraulic pressure or pneumatic pressure so that a suitable melting temperature (for example, the polyethylene material is around 210 ° C ), The hot plate is quickly removed, the both ends of the molten different pipes are pressed and adhered to each other, and after a certain period of time is maintained, they are cooled and solidified.
This method dissolves and adheres the pipe base material when joining different pipes, but it does not require a separate connection socket, but it is inconvenient to transport the heat fusion machine to the work site and the structure of the heat fusion machine is complicated and difficult to use have.
Next, in order to melt the inner diameter surface of the connecting socket and the outer diameter surface of the pipe, the inner diameter surface of the connecting socket and the outer diameter surface of the pipe are fused with each other. When the heating is completed, the outer surface of the pipe is fastly inserted into the inner diameter surface of the connection socket and the inner surface of the connection socket is quickly inserted into the connection socket.
Next, the electric socket heat welding method is a method of inserting a heat source such as a heating coil into an electric connection socket formed by injection molding, inserting a pipe to be welded, The inner diameter surface of the socket and the outer diameter surface of the pipe are simultaneously melted and joined.
At this time, as the heating coil, a copper wire or a copper alloy wire or a nichrome wire which maintains a certain electric resistance is used.
As a typical method for manufacturing such an electric connection socket, a coated electric resistance wire is wound in a coil shape, an electrical connection terminal is connected to the end, and the thermoplastic resin is injected and integrated by inserting the electric connection terminal into the injection mold.
Currently, electrical connection sockets are preferred by users due to their simplicity of operation, and various techniques relating to the heating elements of such electrical connection sockets have been developed.
However, in the current electric connection socket, in order to obtain airtightness or watertightness in the case of fusion bonding, there should be no impurities on the surface to be fusion bonded. When impurities are present, the impurities act as a kind of boundary layer, The melts placed on the glass are not bonded to each other, so that the bonding efficiency is lowered.
In consideration of this point, the surface to be fusion bonded is cleaned before bonding by fusion bonding, but in the case of fine thin film type impurities, complete cleaning is difficult.
In addition, bonding by fusion bonding is basically an important factor in the work in the state of applying a proper pressure, but in the case of the butt fusion method, the fusion bonding portion is pressed and adhered, Hydraulic or pneumatic). In the case of electric fusion, since the heating element is inserted in the inner circumferential surface of the joint pipe, only the pressure due to the natural expansion due to melting can be used, and artificial pressurization can not be considered.
Also, in order to utilize the pressure due to the natural expansion, the error between the inner circumferential surface of the electric fusion welding pipe and the outer peripheral surface of the synthetic pipe inserted into the electric fusion welding pipe must be small.
For example, Korean Unexamined Patent Application Publication No. 10-2009-0130562 (published on Dec. 24, 2009) discloses a connecting
However, the conventional electric fusion welding hose for a synthetic resin pipe as shown in FIG. 1 has a problem in that the
In other words, there is a problem in that an electric fusion welding diaphragm for a conventional synthetic resin pipe can not be used in an environment in which a chemical substance is used, and therefore, a new type of fusion welding machine is required to be developed.
Accordingly, the present invention has been made in view of the background described above, and it is an object of the present invention to provide a method and apparatus for preventing the heating wire between the pipes from being exposed to the outside as the fused protrusion is fused mutually three- And it is an object of the present invention to provide an electric welding apparatus for a fluid transportation pipe including a chemical substance that can prevent corrosion due to a chemical substance from leaking out or leaking through a heating wire.
Further, since the distal end of the pipe is inserted into the support groove of the stopper portion and fused mutually in a mutually confronting state with the fused protrusion, the heating wire integrally formed in the body is exposed to the fluid flowing therein and is chemically or electrically oxidized or altered The present invention also provides an electric welding apparatus for a transfer tube for a fluid including a chemical substance that can maintain a stable welding state and improve fusion welding workability, There is a purpose.
The objects of the present invention are not limited thereto, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.
In order to achieve the above object, according to an embodiment of the present invention, a first section is formed on one side of an inner circumferential surface of a first pipe to which an end of a first pipe is inserted and fused, and a second section in which an end of the second pipe is inserted and fused on the other side of the inner circumferential surface And a stopper portion protruding from the inner circumferential surface so as to define the first section and the second section along a circumferential direction; And a heating wire embedded in the inner peripheral surface of the first section and the second section and connected to an external power source through an electrical connection terminal formed in the main body. Equipment.
In the present invention, the stopper portion may have a circumferential direction at an outer corner of a radial direction of a surface facing one or both of the end portion of the first pipe or the end portion of the second pipe so as to be melted and fused as the heating wire is heated And a fused protrusion formed to protrude therefrom.
In the present invention, the stopper portion may include a support groove which is recessed at one side or both sides in the axial direction so that one or both of the end of the first pipe or the end of the second pipe is fitted and fused with the fused protrusion .
In the present invention, the stopper portion is formed in a streamlined shape with a convex surface facing the center of the body so as to reduce frictional resistance of the flowing fluid.
According to an embodiment of the present invention, the conventional electro-fusion type is a structure that can not be used for transferring chemicals since the heating wire is exposed to the outside and is corroded by a chemical substance. However, according to the present invention, So that it is possible to prevent the coating of the heating wire from being corroded by the chemical substance in the environment where the chemical substance is used and also to prevent the chemical substance from interfering with the heating wire It is possible to prevent leaks or leaks from being leaked to the outside.
Further, since the distal end of the pipe is inserted into the support groove of the stopper portion and fused mutually in a mutually confronting state with the fused protrusion, the heating wire integrally formed in the body is exposed to the fluid flowing therein and is chemically or electrically oxidized or altered It is possible to maintain a firm fusion state so that the fusion workability can be improved and the joining state of the pipe can be made stronger.
1 is a perspective view showing an electric fusion mechanism for a conveying pipe of a conventional fluid,
FIG. 2 is a perspective view of an electric welding apparatus for a fluid containing a chemical substance according to an embodiment of the present invention,
3 is a cross-sectional view of an electrical fusing mechanism for a fluid delivery tube containing a chemical substance according to one embodiment of the present invention,
FIG. 4 is a use state diagram of an electrical fusing mechanism for a transfer tube of a fluid containing a chemical substance according to an embodiment of the present invention;
5 is a cross-sectional view of an electrical fusing mechanism for a transfer tube of a fluid including a chemical substance according to another embodiment of the present invention,
6 is a cross-sectional view of an electrical fusing mechanism for a fluid delivery tube containing a chemical substance according to another embodiment of the present invention.
Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."
FIG. 2 is a perspective view of an electric welding apparatus for a transfer tube of a fluid including a chemical substance according to an embodiment of the present invention, FIG. 3 is a perspective view of an electric welding apparatus for transferring a fluid including a chemical substance according to an embodiment of the present invention Fig. 4 is a view illustrating the state of use of an electric fusing mechanism for a transfer tube of a fluid including a chemical substance according to an embodiment of the present invention. Fig. 5 is a cross- Sectional view of the electric fusion mechanism.
As shown in these drawings, an electric welding apparatus for a fluid including a chemical substance according to an embodiment of the present invention includes a
The
That is, the
Here, the
The
Accordingly, when the electric power is supplied through the
The
In the present invention, the
Accordingly, when the
For example, the
Accordingly, after inserting the first and
In addition, the
The
At this time, as shown in FIG. 5, one end or the end of the
That is, the stopper portion 250 'is formed with
In addition, the stopper portion 250 'may be formed in a streamlined shape with the surface facing the center of the
2 to 4, the
That is, the fused
Accordingly, after the first and
Since the fused
The fused
That is, the ends of the first and
In addition, since the fused
4, a pipe fusing method using an electrical fusing mechanism for a fluid including a chemical substance according to the present invention will be described.
4, the first and
At this time, the inner surface of the
When the temperature of the melted portion rises and reaches the softening point, the first and
That is, as the fused
The distal ends of the first and
3, the fused
The
That is, the
At this time, the fused
Accordingly, after the first and
The fused
That is, the ends of the first and
In addition, since the fused
6 is a cross-sectional view of an electrical fusing mechanism for a fluid delivery tube containing a chemical substance according to another embodiment of the present invention.
In still another embodiment of the present invention, the configuration of the stopper portion is the same as that of the above-described embodiment of the present invention, and therefore only the configuration of the stopper portion will be described.
In this embodiment, as shown in FIG. 6, the
The
The
That is, after inserting the first and
The
That is, the fused
Accordingly, after the first and
Since the fused
As described above, the
That is, the ends of the first and
In addition, since the fused
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.
It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.
The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
110a: first pipe
110b: second pipe
210:
220a, 220b: electrical connection terminal
230:
250: stopper portion
260a, 260b:
270a and 270b:
Claims (4)
An electric wire embedded in the inner surface of the first section and the second section and connected to an external power source through an electric connection terminal formed in the main body;
≪ / RTI >
The stopper portion
And a fused protrusion protruding along a circumferential direction at an outer corner of a radial direction of a surface facing one or both of the end of the first pipe or the end of the second pipe so as to be melted and fused as the heating wire is heated ,
The heating wire,
Wherein a part of the fused protrusion is buried inside the main body along the fused protrusion such that the fused protrusion and the end of the first pipe or the second pipe are welded together.
The stopper portion
And a support groove which is recessed and formed at one side or both sides of the axial direction so as to fuse with one or both of the end of the first pipe or the end of the second pipe and fuse with the fused protrusion An electric welding device for a fluid transferring tube.
The stopper portion
Wherein the surface facing the center of the body is formed in a convex shape so as to reduce the frictional resistance of the flowing fluid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160026110A KR101818324B1 (en) | 2016-03-04 | 2016-03-04 | Electro-fusion apparatus for transfer tube of fluid including chemical material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160026110A KR101818324B1 (en) | 2016-03-04 | 2016-03-04 | Electro-fusion apparatus for transfer tube of fluid including chemical material |
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KR20170103360A KR20170103360A (en) | 2017-09-13 |
KR101818324B1 true KR101818324B1 (en) | 2018-01-15 |
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KR1020160026110A KR101818324B1 (en) | 2016-03-04 | 2016-03-04 | Electro-fusion apparatus for transfer tube of fluid including chemical material |
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TW202122704A (en) * | 2019-09-30 | 2021-06-16 | 日商積水化學工業股份有限公司 | Electrically fusion bonded joint |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200268413Y1 (en) * | 2001-12-11 | 2002-03-16 | 박기종 | A coupling pipe for synthetic resin pipe |
JP2002317894A (en) * | 2001-04-19 | 2002-10-31 | Sekisui Chem Co Ltd | Electrodeposition coupler |
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2016
- 2016-03-04 KR KR1020160026110A patent/KR101818324B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002317894A (en) * | 2001-04-19 | 2002-10-31 | Sekisui Chem Co Ltd | Electrodeposition coupler |
KR200268413Y1 (en) * | 2001-12-11 | 2002-03-16 | 박기종 | A coupling pipe for synthetic resin pipe |
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KR20170103360A (en) | 2017-09-13 |
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