KR101728064B1 - Apparatus for electro-fusion of polyethylene pipes having leakage test module - Google Patents

Abstract

In this disclosure, the present disclosure relates to a process for producing a pressure-sensitive adhesive sheet, which comprises first and second facing first and second facing ends of first and second pipes separated from each other, A fusion splicer for an electrical fusion polyethylene joint pipe having a gas tightness test module, characterized in that a current is applied to both ends of a heat generating coil provided inside the electronic joint pipe to fuse the electronic joint pipe and the first and second joint ends An electronic fusion module; Wherein a predetermined first pressure gas is supplied to the interior of the first and second pipes welded to the first and second pipes welded to each other by the electron fusion module, A pressure hermetic test module for sensing an internal pressure of the first and second pipes; An inserting portion for selectively switching an operation of the electronic fusing module and the pressure hermeticity testing module; And a control unit for controlling the operation of the electronic fusing module or the pressure hermeticity test module based on the selection of the switching unit, according to the first aspect of the present invention.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fusion splicer for an electric fusion polyethylene joint pipe having a pressure-

Disclosure of the Invention The present disclosure relates to a fusion splicer of an electric fusion polyethylene joint pipe and more particularly to a fusion splicer of an electric fusion polyethylene having a pressure tightness test module capable of confirming the fusion quality of an electric fusion portion of a fusion- To a welder of a joint pipe.

Herein, the background art relating to the present invention is provided, and they are not necessarily referred to as known arts.

When a large amount of cooling water or city gas is supplied to a necessary place in a nuclear power plant or a city gas reservoir, a metal pipe is mainly used as a piping material.

However, for example, in a nuclear power plant, a large amount of cooling water is required to cool a primary coolant in a nuclear power plant. Accordingly, a large-diameter cooling water inlet pipe is buried in the sea, and seawater is taken out through it to be used as cooling water. When a metal pipe is used as a lead-in pipe, there is a problem that the lead pipe is easily corroded by seawater. Therefore, recently, a synthetic pipe such as a polyethylene pipe is used instead of a metal pipe as a coolant intake pipe.

In particular, polyethylene has excellent chemical resistance, hygienic properties, flexibility, light weight, and the like compared with other materials. Particularly since polyethylene has no electric corrosion (corrosion corrosion) and corrosion and can be used semi-permanently, It is used not only for the inlet pipe but also for the upper and the sewage pipes and for gas transfer.

When such a polyethylene pipe is used for piping, it is necessary to connect the polyethylene pipes to each other. In the method of connecting the polyethylene pipes, there are a mechanical connection method using a metal coupling and a method of connecting using a heat. Since the coupling and the connecting material used for it are made of metal, there is still a possibility of corrosion. In the case of connecting the polyethylene pipe, a method of connecting using mainly heat is used.

Heat fusion method and electro fusion method are also used for the connection of polyethylene pipe by using heat. Butfusion method, socket fusion method, And saddle fusion.

Here, electric fusion is divided into electric socket fusion and electric saddle fusion, which is performed by inserting a heating coil into an electronic PE coupling pipe, and applying a power source to the heat pipe of the electronic PE coupling pipe, It is a fusion bonding method in which a desired portion is melted and connected.

On the other hand, after the electric fusion is completed, it is general to test the performance of the fused portion. In this regard, Korean Patent Laid-Open No. 10-2009-0067303 discloses a piping material connection portion sensing device, which includes a cover for collecting a leaked gas, a sensor for detecting a leaked gas, And an RFID for informing the user of the information.

Korean Patent Laid-Open Publication No. 10-2015-0021153 discloses a " apparatus and method for diagnosing a pipe fused portion ", which includes a probe for projecting an ultrasonic wave to a pipe fused portion and a control device for adjusting a projection angle to the fused portion And the ultrasonic image obtained from the ultrasonic image is used to diagnose the fusing integrity.

As described above, since the conventional device for testing the performance of the fused portion is provided separately from the fusing device, there is an inconvenience that the fusing performance testing device must be installed independently after the fusing is completed by the fusing device.

1. Patent Document 0001) Korean Patent Publication No. 10-2009-0067303 2. Patent document 0002) Korean Patent Publication No. 10-2015-0021153

It is an object of the present disclosure to provide a fusion splicer for an electric fusion polyethylene joint pipe having a pressure tightness test module capable of performing electrical fusion of a polyethylene pipe and airtightness testing of a fusion splice by a single device.

The present invention is not intended to be exhaustive or to limit the scope of the present invention to the full scope of the present invention. of its features).

In order to solve the above problems, the present disclosure is characterized in that the first and second connecting ends of the first and second pipes separated from each other and the first and second pipes are arranged on both sides A fusion splicer for an electrical fusion polyethylene joint pipe having a pressure tightness test module for fusing using an electronic PE joint pipe to be fitted is characterized in that a current is applied to both ends of a heat generating coil provided inside the electronic joint pipe, An electronic fusing module for fusing the first and second pipes and the electronic PE coupling tube in a state where the first and second joint ends are in contact with each other; Wherein the first and second pipes are welded to the first and second pipes in a state where the first and second pipes and the electronic PE coupling pipe are welded together by the electronic fusion module, 2 ends of the first and second pipes are shielded to block gas inflow from the outside into the inside of the first and second pipes and then to the inside of the first and second pipes through either one of the open ends A pressure hermeticity test module for sensing an internal pressure of the first and second pipes for a preset time in a state where a predetermined first pressure gas is supplied; An inserting portion for selectively switching an operation of the electronic fusing module and the pressure hermeticity testing module; And a control unit for controlling operation of the electronic fusing module or the pressure hermeticity test module based on selection of the switching unit, wherein the pressure hermeticity test module includes: a gas inlet port through which the gas of the first pressure flows from the outside, ; A measuring joint which is connected to the gas inlet by a communication pipe and communicates with the inside of the first and second pipes fused by the electronic fusion module; A branch pipe branched from one side of the communication pipe; A pressure sensor provided at an end of the branch pipe; A valve provided in the communication pipe and provided between the gas inlet and the branch tube for selectively opening and closing the inflow of gas from the gas inlet; And a driving circuit unit for controlling operations of the valve and the pressure sensor and for transmitting pressure information sensed by the pressure sensor to the control unit, wherein the control unit controls the electronic fusing module and the pressure- And a memory for storing a status identification code indicating a module operated by the selection of the switching unit and storing the data for each predetermined time interval received from the operating module together with the status identification code, Wherein the pressure hermeticity test module, the switching unit, and the control unit are integrally coupled to each other.

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The present disclosure relates to a welder for an electrical fusion polyethylene joint pipe having a pressure tightness test module according to the first invention, wherein the pressure tightness test module comprises: And a pressure hermetically sealed test module provided to be connected so as to be capable of transmitting and receiving different data, according to a sixth aspect of the present invention.

The present disclosure relates to a fusion splicer for an electrical fusion polyethylene joint pipe having a pressure tightness test module according to the sixth aspect of the present invention, characterized by comprising: a display unit for externally displaying the state identification code stored in the memory And the control unit has a pressure hermeticity test module for controlling display in accordance with a predetermined display format based on the state identification code.

The present disclosure relates to a welder for an electrical fusion polyethylene joint pipe having a pressure tightness test module according to the seventh aspect of the invention, wherein the state identification code comprises an information start code indicating the start and end of the data at the set time interval, Wherein the set time interval data includes an electrical fusion polyethylene joint tube welder having a pressure airtightness test module including at least one of airtightness pressure information, gas temperature and humidity information applied to the airtightness test, It is provided as an invention.

According to the present disclosure, since two essential operations in the electric fusion welding process of a polyethylene pipe can be used as one equipment, the result of the welding process can be immediately obtained after the electric welding work of the polyethylene pipe in the field, . Therefore, efficiency, accountability, and reliability of the fusing process can be improved.

Further, according to the present disclosure, since the two operations are made of one piece of equipment, the economical efficiency is improved and the burden on the constructor is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a welder of an electric fusion polyethylene joint pipe having a pressure tightness test module according to the present disclosure; FIG.
Fig. 2 is a view showing an electron fusion module in Fig. 1; Fig.
FIG. 3 is a view showing a configuration of a pressure tightness test module in FIG. 1; FIG.
4 is a view schematically showing another example of the construction of a welder of an electrical fusion polyethylene joint tube having a pressure tightness test module according to the present disclosure;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, various embodiments for implementing a fusion splicer of an electric fusion polyethylene joint pipe having a pressure tightness test module according to the present disclosure will be described with reference to the drawings.

It should be understood, however, that there is no intention to limit the scope of the present disclosure to the embodiments described below, and that those skilled in the art, having the benefit of the teachings of this disclosure, It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

It is to be understood that the terminology used herein is for the purpose of description only, and should not be construed as limited to its prior meaning, but should be construed in a manner consistent with the technical idea of the present disclosure.

FIG. 1 is a schematic view showing a configuration of a fusion machine of an electrical fusion polyethylene joint pipe having a pressure tightness test module according to the present disclosure. FIG. 2 is a view showing the electronic fusion module in FIG. 1, and FIG. 3 is a cross- Fig. 6 is a diagram showing a configuration of a module.

1 to 3, a welder 100 of an electrical fusion polyethylene joint pipe having a pressure tightness test module according to the present disclosure includes first and second pipes 11 and 12 separated from each other, The first and second pipes 11 and 12 and the electronic PE joint 12 are connected to each other by using the electromagnetic joint pipe 13 in which the two joint ends 11a and 12a and the first and second joint ends 11a and 12a are sandwiched on both sides, And an apparatus for electrically fusing the tube (13).

Here, the fusion splicer 100 of the electrical fusion polyethylene joint pipe having the pressure hermeticity test module according to the present disclosure includes the electronic fusion module 110 and the pressure tightness test module 120 together in one device.

Specifically, the fusion splicer 100 of the electrical fusion polyethylene joint pipe having the pressure tightness test module according to the present disclosure includes an electronic fusion module 110, a pressure tightness test module 120, a switching unit 130, and a control unit 140, .

The electronic fusing module 110 is configured to fuse the electronic PE fitting 13 with the first and second connecting ends 11a and 12a.

The electronic welding module 110 applies electric current to the heat generating coil 14 provided inside the electromagnetic type PE coupling pipe 13 and generates heat in the heat generating coil 14 to thereby generate electric power by the electromagnetic type PE coupling pipe 13 The first and second connecting ends 11a and 12a are fused.

To this end, the electronic fusing module 110 has two connection terminals connected to both ends of the heat generating coil 14, the size of the current applied by the control part 140 being adjusted.

The pressure hermeticity test module 120 is configured to test whether a gas passing through the inside of the first and second pipes 11 and 12 fused by the electronic fusing module 110 leaks the fused portion to the outside.

The pressure hermeticity testing module 120 includes first and second pipes 11 and 12 which are intercepted from the outside of the first and second pipes 11 and 12 fused by the electronic fusing module 110, The inner pressure of the first and second pipes 11 and 12 is sensed for a predetermined period of time to check leakage or fusion quality.

Here, for an effective airtightness test, it is preferable that the gas is air and the first pressure is 90 to 900 kPa.

The switching unit 130 selectively switches the operation of the electronic fusing module 110 and the pressure hermeticity testing module 120. This can be configured in such a way that the power source is selectively applied.

The switching unit 130 may be constituted by a single switch but may be provided with functions of simply selecting the operation of either the electronic fusion module 110 or the pressure tightness testing module 120, Or the initial data input required for the operation of the pressure hermeticity testing module 120. [

The control unit 140 controls the operation of the electronic fusing module 110 or the pressure hermeticity test module 120 based on the selection of the switching unit 130.

The control unit 140 may be provided in the form of a printed circuit board.

The fusion splicer 100 of the electrical fusion polyethylene joint pipe having the pressure tightness test module according to the present disclosure includes an electronic fusion module 110, a pressure tightness test module 120, a switching unit 130, and a control unit 140 Respectively.

Here, the electronic fusing module 110 and the pressure hermeticity testing module 120 may be configured to be removable from each other if they are electrically connected to the switching unit 130 and the control unit 140.

Next, in the welder 100 of the electrical fusion polyethylene joint pipe having the pressure hermeticity test module according to the present disclosure, the pressure hermeticity test module 120 includes a gas inlet 121, a measurement joint 122, A pressure sensor 125, a valve 126, and a drive circuit 127. The pressure sensor 125 may be a pressure sensor,

The gas inlet 121 is configured such that a gas (for example, air) of a first pressure (for example, 90 to 900 kPa) flows from the outside.

The measurement joint 122 is connected to the gas inlet 121 and the communication pipe 123 and communicates with the inside of the first and second pipes 11 and 12 welded by the electronic fusion module 110 .

The branch pipe 124 is a pipe branched from one side of the communication pipe 123, and the pressure sensor 125 is provided at the end of the branch pipe.

Here, it is preferable that the pressure sensor 125 is provided with an electric diaphragm type pressure sensor capable of measuring a pressure in the range of 1 to 1 MPa.

The valve 126 is provided in the communication pipe 123 and is provided between the gas inlet 121 and the branch pipe 124 to selectively open and close the inflow of gas from the gas inlet 121.

Here, in the opened state of the valve 126, the gas of the first pressure flows into the first and second pipes 11 and 12 fused by the electron fusion module 110 through the communication pipe 123, At the same time, the gas at the first pressure allows the pressure sensor 125 to sense the first pressure through the branch tube 124.

In addition, when the valve 126 is closed, the pressure sensor 125 can sense the pressure inside the first and second pipes 11 and 12 fused by the electronic fusing module 110.

The driving circuit 127 controls the operation of the valve 126 and the pressure sensor 125 and transmits the pressure information sensed by the pressure sensor 125 to the controller 140.

The driving circuit portion 127 may be provided in the form of a printed circuit board.

On the other hand, in the pressure hermeticity test module 120, the drive circuit 127 is connected to the controller 140 so that signals and data can be exchanged with each other.

Here, the driving circuit unit 127 may be a terminal coupled to the control unit 140 so as to be detachable from each other.

4, the control unit 140 includes an electronic fusion module 110 and a pressure hermeticity test module (hereinafter, referred to as " pressure fusion module ") 110. In the fusion splicer 100 of an electrical fusion polyethylene joint pipe having a pressure hermeticity test module according to the present disclosure, A memory 150 for providing a status identification code of a module operated by the selection of the switching unit 130 and storing the data for each time interval received from the operating module together with the status identification code, .

Here, the status identification code is configured to include an information start code and an information end code that indicate the start and end of data for each set time interval.

Further, the set time interval data is provided so as to include at least one of the confidential pressure information, the temperature of the gas applied to the airtightness test, and the humidity information.

On the other hand, in the welder 100 of the electrical fusion polyethylene joint tube having the pressure tightness test module according to the present disclosure, a display unit (not shown) for externally displaying the state identification code stored in the memory 150 and the set time- 160, and the control unit 140 may be configured to control the display unit 140 to display according to a predetermined display format based on the status identification code.

Here, the display unit 160 may be a format using a screen or a display, or a print format using paper or the like. It is also possible to do both.

Claims (8)

The first and second connecting ends of the first and second pipes separated from each other and the first and second pipes are sandwiched between the first and second connecting ends, A fusion splicer for an electrical fusion polyethylene joint pipe having a pressure-tightness test module for fusing two pipes and the electronic PE joint pipe,
An electronic fusion module for applying an electric current to both ends of a heat generating coil provided inside the electronic PE coupling pipe to fuse the first and second pipes and the electronic PE coupling pipe in a state where the first and second connection ends are in contact with each other, ;
Wherein the first and second pipes are welded to the first and second pipes in a state where the first and second pipes and the electronic PE coupling pipe are welded together by the electronic fusion module, 2 ends of the first and second pipes are shielded to block gas inflow from the outside into the inside of the first and second pipes and then to the inside of the first and second pipes through either one of the open ends A pressure hermeticity test module for sensing an internal pressure of the first and second pipes for a preset time in a state where a predetermined first pressure gas is supplied;
An inserting portion for selectively switching an operation of the electronic fusing module and the pressure hermeticity testing module; And
And a control unit for controlling the operation of the electronic fusing module or the pressure hermeticity test module based on the selection of the switching unit,
The pressure-tightness test module may include:
A gas inlet through which the gas of the first pressure flows from the outside;
A measuring joint which is connected to the gas inlet by a communication pipe and communicates with the inside of the first and second pipes fused by the electronic fusion module;
A branch pipe branched from one side of the communication pipe;
A pressure sensor provided at an end of the branch pipe;
A valve provided in the communication pipe and provided between the gas inlet and the branch tube for selectively opening and closing the inflow of gas from the gas inlet; And
And a driving circuit for controlling the operation of the valve and the pressure sensor and transmitting pressure information sensed by the pressure sensor to the controller,
Wherein the control unit gives a state identification code indicating a module operated by the selection of the switching unit among the electronic fusion module and the pressure hermeticity testing module and outputs the set time interval data received from the operating module to the state identification code And a memory for storing the data,
Wherein the electronic fusing module, the pressure hermeticity testing module, the switching portion, and the control portion are integrally coupled.
The pressure gauging test module is characterized in that the drive circuit unit is connected to the control unit so as to be able to transmit and receive the state identification code and data at the set time interval,
And a display unit for externally displaying the status identification code stored in the memory and the predetermined time interval data connected thereto,
The control unit controls to display in accordance with a predetermined display format based on the status identification code,
Wherein the status identification code includes an information start code and an information end code that indicate the start and end of the data according to the set time interval,
Wherein the set time interval data includes one or more of gas tightness information, temperature and humidity information of a gas applied to the airtightness test, and a pressure airtightness test module. delete delete delete delete delete delete delete

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