KR100388782B1 - device for installation of optical fiber cable on gas pipe inside and method thereof - Google Patents

Abstract

When the optical fiber cable is extended in the longitudinal direction so as to transmit the optical signal inside the gas pipe, the optical fiber cable can be easily installed even if the pipe is formed into a curved pipe according to the conditions of the place where the pipe is installed. The present invention is formed on one end of the air pressure sending means and the light string and is moved along the inner circumference of the gas pipe by the lifting force according to the air pressure sending from the air pressure sending means to move the string to the outlet side of the gas pipe With a float.

For this reason, when the optical fiber cable is installed in the pipe in the longitudinal direction, the optical fiber cable is installed inside the gas pipe by connecting the optical fiber cable to the end of the light string passing through the gas pipe by the floating force. It is easy to work and can greatly improve workability due to shortening of working time.

Description

Device for installation of optical fiber cable on gas pipe inside and method

The present invention is installed inside the pipe for transporting the explosive or combustible material is a gas pipe for the optical fiber cable that delivers a safe optical signal in order to prevent the spark generated by an electrical signal that can explode when transmitting a signal from the outside An apparatus and a method for extending and installing in a longitudinal direction therein.

More specifically, when installing the optical fiber cable inside the pipe, a device for installing the optical fiber cable inside the gas pipe so that the optical fiber cable can be easily installed even if the pipe is formed in a curved pipe according to the conditions where the pipe is installed. And to a method thereof.

In the following description, the term pipe means including both pipes such as gas hoses and gas pipes capable of moving a substance such as an explosive substance, a flammable substance, or a leakable liquid.

In general, gas hoses and gas pipes made of vinyl chloride are used to supply gas from an external gas supply side to a combustion device such as a gas boiler. The gas hose is a pipe connecting a combustion device or a container and a combustion device. The gas hose is often made of vinyl chloride so as not to be melted by a gas or cause a chemical reaction. The gas pipe connected to the gas hose is usually formed of a metal material.

The gas hose is fixed by a fixing means such as a hose band to tighten the gas hose to a portion connecting the combustion device to prevent the gas from leaking.

On the other hand, since the gas supply source supplying gas to the combustor used in general homes or industrial sites is mostly installed in a well-ventilated outdoor area, the occurrence rate of the accident is low even when a gas leakage accident occurs on the gas supply side, If gas is accumulated in the room due to gas leakage during use, fire or explosion may result. Therefore, when gas leakage is detected, it is desirable to shut off the gas at the gas supply side rather than the combustion apparatus side.

On the other hand, as described above, in order to shut off the gas at the gas supply source side, a copper wire may be used as a conductor for transmitting a signal on the combustion state of the combustion device from the combustion device to the gas supply source side at a relatively long distance. . However, due to the operation of embedding a copper wire in the gas pipe or the installation of a separate wire pipe has a problem that workability is significantly reduced.

In addition, as described above, when using a gas pipe embedded with copper wire, the controller may be configured to transmit the gas consumption on the gas supply side to the controller side or to automatically shut off the gas valve on the gas supply side when a gas leak occurs. When the electrical signal is applied through, the spark may be generated in the gas pipe by the copper wire, causing a fire or explosion accident, thereby deteriorating the safety and reliability of the gas supply system.

Therefore, an object of the present invention, when the optical fiber cable is installed in the gas pipe extending in the longitudinal direction, even when the gas pipe is installed in the form of a curved pipe according to the installation place is easy to install the optical fiber cable work due to the shortened working time The present invention provides an apparatus and method for installing an optical fiber cable inside a gas pipe to greatly improve the performance.

1 is a schematic diagram of an apparatus for installing an optical fiber cable in a gas pipe according to an embodiment of the present invention, and a gas supply system to which the method is applied;

2 is a view for installing an optical fiber cable inside a gas pipe according to an embodiment of the present invention.

Figure 2 (a) is a schematic view showing an initial state of charging the suspended solids in the gas pipe in a light string,

Figure 2 (b) is a schematic diagram showing that the floating body moves forward by the discharge of the compressed air from the air injector to move the string to the gas pipe outlet side,

FIG. 2 (c) is a schematic diagram illustrating connecting the second string to the gas pipe inlet side string when the string reaches the gas pipe outlet side; FIG.

Fig. 2 (d) is a schematic diagram illustrating connecting the optical fiber cable to the second string of the gas pipe inlet side when the second string reaches the gas pipe outlet side;

Figure 2 (e) is a schematic diagram showing that the optical fiber cable is installed inside the gas pipe,

3 is a schematic diagram of an apparatus for installing an optical fiber cable in a gas pipe according to another embodiment of the present invention;

4 is a flowchart illustrating a procedure of a method for installing an optical fiber cable in a gas pipe according to an embodiment of the present invention.

* Explanation of symbols used in the main part of the drawing

20; Air wire inserter (air injection wire inserter)

21; string

22; Gas pipe

23; Optical fiber cable

24; Float

25; 2nd string

The object of the present invention described above is formed at one end of the air pressure sending means and the light string, and moves along the inner circumference of the gas pipe by the lifting force according to the air pressure sending from the air pressure sending means to move the string to the gas. It is achieved by providing an apparatus for installing an optical fiber cable inside a gas pipe, characterized by having a float moving to the outlet side of the pipe.

The object of the present invention described above is to form a float that is floated during pneumatic discharge, and to fix the light strap on the float by the buoyancy of the float buried in the gas pipe according to the pneumatic discharge of the inside of the gas pipe Advancing the string along a circumference, connecting the optical fiber cable to the other end of the string located at the inlet side of the gas pipe when the string reaches the outlet side of the gas pipe, and inside the gas pipe Moving the optical fiber cable to the outlet side of the gas pipe by pulling the string at the outlet side of the gas pipe while sending air pressure to the gas pipe. Is achieved by.

According to a preferred embodiment, an air wire inserter, a blower or an air compressor having a built-in compressed air nozzle and an ejector may be used as the air pressure sending means.

According to a preferred embodiment, when the floating body reaches the outlet side of the gas pipe, the second string of a material stronger than the string is connected to the other end of the string located at the inlet side of the gas pipe, so that the second air is discharged due to air pressure delivery. Connecting the optical fiber cable to the other end of the second string when a string reaches the gas pipe outlet.

According to a preferred embodiment, the floating body may be formed as a unit floating body having one end of the floating body fixed to the string and the other end is floated when the air pressure is sent out to move forward along the inner circumference of the gas pipe. have.

According to a preferred embodiment, some of the unit floats may be mesh connected.

According to a preferred embodiment, the shape of the floating body may be formed in an oval or streamline so that it can be easily moved forward in the inside of the pipe when the air pressure is sent.

According to a preferred embodiment, the unit floating body may be formed in a dry flake shape.

According to a preferred embodiment, a string, a silk thread or a string of synthetic resin material in which the light fibers are cut in the longitudinal direction may be used.

According to a preferred embodiment, the floating body may be provided with a speed adjusting means to have a direction while moving inside the gas pipe.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail as can be easily carried out by those skilled in the art in order to facilitate the understanding of the technical contents of the present invention. This does not mean that the technical scope of the present invention is limited.

1 is a schematic diagram of a gas supply system to which an apparatus and method for installing an optical fiber cable in a gas pipe according to an embodiment of the present invention are applied.

As shown, the gas safety system includes a gas supply source 10 for supplying gas from the outside, and a plurality of combustion devices 12, 13, and 14 connected to the gas supply source 10 (for example, a gas oven range, Gas boiler, gas heater, etc.), one end of the gas is connected to the gas supply source 10 side, the gas shut-off valve 15 for opening and closing according to the input of a signal from the outside, and one end of the gas It is connected to interlock with the gas shutoff valve 15, the gas supply source according to the use signal of the gas from the gas pipe 17 and the combustion device (12, 13, 14) is built in the optical fiber cable extending in its longitudinal direction ( The leakage of gas from the controller 18 which outputs a signal to the gas shutoff valve 15 through the optical fiber cable to open and close the gas shutoff valve 15 on the 10 side, and the combustion devices 12, 13 and 14 Gas leak detection detected by the controller and input to the controller 18 And a stand (19).

Hereinafter, the gas supply system as described above will be equally applicable to the apparatus and method for installing the optical fiber cable in the gas pipe according to the embodiment of the present invention, and thus for the detailed configuration and method of use thereof. Note that the description is omitted.

2 (a-e) is a schematic diagram of an apparatus for installing an optical fiber cable inside a gas pipe according to an embodiment of the present invention.

As shown, an air wire inserter (or an air jet wire inserter) 20 having a built-in air injector connected to an air supply source such as an air compressor to deliver a predetermined air pressure, and a reel A ) Is fixed to one end of a light string 21 (for example, a ribbon, a silk thread, or a thread of a synthetic resin made by cutting a light fiber in the longitudinal direction may be used) and the air wire inserter 20 described above. The floating body 24 which moves forward along the inner periphery of the gas pipe 22 by the lifting force according to the air pressure transmission from the above, and moves the above-mentioned string 21 to the gas pipe 22 exit side, and the above-mentioned. When the string 21 reaches the gas pipe 22 outlet side, it is connected to the string 21 located at the gas pipe 22 inlet side, and when one end of its string reaches the gas pipe 22 outlet side by air pressure delivery. A string of its own located at the inlet side of the gas pipe 22 To pull the fiber optic cable 23 to be connected to the stage and a second strap (25) is formed of a stronger material than the band (21).

Reference numeral B is an insertion speed controller for adjusting the speed so that the floating body 24 can easily move forward by giving direction when moving along the inner circumference of the gas pipe 22.

3 is a schematic diagram of an apparatus for installing an optical fiber cable in a pipe according to a preferred embodiment of the present invention.

As shown, the above-described floating body 24 is fixed at one end of the strap 21, and the other end of the suspended in the air when the air is sent from the air wire inserter 20 to the inside of the pipe 22 It may be formed of a unit float 26 composed of several floats 24 moving forward along the circumference.

More preferably, some of the above-described unit floats 26 may be connected in a dry mesh form, and the shape of the floats 24 forming the unit floats 26 described above may be supported by pneumatic discharge. It can be formed in an elliptical or streamline so that it can be moved forward easily inside the pipe (22).

Hereinafter, an apparatus and method for installing an optical fiber cable according to the present invention in a gas pipe will be described with reference to the accompanying drawings.

As shown in FIG. 2 (e), when a signal from the outside is transmitted to the gas pipe 22 that interconnects the gas supply source side and a combustion device such as a gas oven, a spark can be prevented from occurring. The optical fiber cable 23 so as to extend in the longitudinal direction inside the gas pipe 22 is installed.

Floating body 24 which is supported by moving inside the gas pipe 22 when forwarding the air pressure by the above-described air wire inserter 20 having an air inserter connected to an air supply source such as an air compressor, etc. To form (see S10).

At this time, the shape of the above-mentioned floating body 24 is preferably formed in an oval or streamline so that it is buoyed at the time of air pressure transmission so that it can easily move forward along the inner circumference of the gas pipe 22.

After the floating body 24 is fixed to a light string 21 such as a silk thread released from the reel A and charged into the gas pipe 22 (shown in FIG. 2 (a)), the air wire described above. The floating body 24 is moved forward along the inner circumference of the gas pipe 22 by the floating force according to the air pressure controlled from the inserter 20 (see S20).

At this time, when the curved pipe portion 22a is formed according to the condition of the place where the pipe 22 is installed in the middle of the pipe 22 in the longitudinal direction described above, the above-mentioned floating body 24 is not supported by the lifting force due to the pneumatic discharge. As a result, when passing through the curved portion 22a, the curved tube portion 22a can be easily pulled out without being caught.

When the above-mentioned floating body 24 reaches the outlet side of the gas pipe 22 (shown in FIG. 2 (b)), it is held by the other end of the string 21 located at the inlet side of the gas pipe 22. After connecting the second string 25 made of a material stronger than the string 21 so as not to be pulled out (shown in FIG. 2 (c)), the air pressure by the air wire inserter 20 is applied to the gas pipe 20. At the same time, the string 21 is pulled by the operator at the outlet side of the gas pipe 22 to move the second string 25 to the outlet side along the inner circumference of the gas pipe 22 (see S25). .

As shown in FIG. 2 (d), when one end of the second string 25 described above reaches the outlet side of the gas pipe 22, the second string 25 located at the inlet side of the gas pipe 22 is shown. Connect the optical fiber cable 23 to the other end of (see S30).

The air pressure discharged from the above-described air wire inserter 20 is sent to the inside of the gas pipe 22 to move the second string 25 to the gas pipe 22 exit side, and at the same time, the gas pipe 22 exit side. In the second string 25 is pulled by the operator to move the optical fiber cable 23 toward the gas pipe 22 outlet (see S40) (shown in Figure 2 (e)).

As the above-mentioned second string 25 is pulled out of the gas pipe 22 by an operator, an optical fiber cable 23 fixed to the other end of the second string 25 is easily installed in the gas pipe 22. (See S50).

As described above, according to a preferred embodiment, when the optical fiber cable is installed in the gas pipe extending in the longitudinal direction, the optical fiber cable is connected to the end of the light string passing through the gas pipe by the floating force of the floating body. In addition, it is easy to install the optical fiber cable inside the gas pipe, and the workability is greatly improved due to the shortening of the working time.

Claims (10)

Air pressure sending means; And It is formed on one end of the light string, characterized in that it comprises a floating body for moving the string to the outlet side of the gas pipe by moving along the inner circumference of the gas pipe by the buoyancy force according to the transmission of the air pressure from the air pressure sending means Apparatus for installing an optical fiber cable in the gas pipe. Forming a float which is supported during air pressure delivery; Fixing the light string to the float to move the string forward along the inner circumference of the gas pipe by the flotation force of the float charged into the gas pipe according to the air pressure delivery; Connecting the optical fiber cable to the other end of the string located at the inlet side of the gas pipe when the string reaches the outlet side of the gas pipe; And Installing the optical fiber cable inside the gas pipe by pulling the string at the outlet side of the gas pipe while sending air pressure into the gas pipe and moving the optical fiber cable to the outlet side of the gas pipe. Way. The method of claim 1, wherein the floating body; One end of the fiber is fixed to the string and the other end is provided in the gas pipe, characterized in that formed in the unit floating body is suspended in the air pressure transmission to form a floating body moving forward along the inner circumference of the gas pipe Device for 4. The apparatus of claim 3, wherein a portion of the unit floats are connected in a mesh fashion. 2. An apparatus for installing an optical fiber cable in a gas pipe according to claim 1, wherein an air wire inserter having an air inserter is used as the air pressure sending means. 2. The apparatus of claim 1, wherein the floating body has an elliptical shape or a streamlined shape so as to be able to easily move forward in the gas pipe when the air is discharged. The method of claim 2, wherein when the floating body reaches the outlet side of the gas pipe, a second string of a material stronger than the string is connected to the other end of the string located at the inlet side of the gas pipe, thereby causing the air pressure to be discharged. Connecting the optical fiber cable to the other end of the second string when a string reaches the gas pipe outlet side. 4. The method of claim 3, wherein the unit float is formed in a dry flake shape. 2. The apparatus of claim 1, wherein a ribbon, a silk thread, or a string of synthetic resin, which is made by cutting the light fiber material in the longitudinal direction with the string, is used. 2. An apparatus for installing an optical fiber cable in a gas pipe according to claim 1, wherein the speed adjusting means is provided so that the floating body has a direction while moving inside the gas pipe.