KR200241372Y1 - The measurement instrument of the distance covered attached at a pig - Google Patents

Abstract

The present invention relates to a mileage measurement device that can measure the mileage is mounted on the pig (PIG) to move and move inside the pipe along the pipe to inspect the inside of the pipe.

The present invention for achieving the above object is to check the inside of the pipe by using a piglet moving inside the pipe (P), a pair of mileage measuring device 80 to measure the mileage at the rear of the pig ) Is installed, the mileage measuring device 80 is installed on the back of the pig to be opposed to each other on both sides of the body 10 so as to face each other, one end is the shaft pin 81 in the body frame (16) Support member 82 is fixed to; A spring 82 'interposed between the body frame 16 fixed to the shaft pin 81 and the support member 82 to impart an elastic force to the support member 82; A roller (84) assembled at the other end of the support member (82) to make a rolling contact with the inner circumferential surface of the pipe (P); A tooth (86) fixed to one side of the roller (84) by a fixing pin (85) to rotate together; It is fixed to the support member 82, the sensing sensor 88 for detecting the amount of rotation of the gear 86; consists of.

Description

The distance instrument attached to the pig {The measurement instrument of the distance covered attached at a pig}

The present invention relates to a mileage measurement device that can measure the mileage is mounted on a pig (PIG) to move the inside of the pipe along the pipe and inspect the inside of the pipe.

With the recent increase in energy demand, the size of gas pipelines is gradually increasing, and as the existing gas pipelines are aged, there is a need to check them. In addition, the country is limited, while the population continues to grow, the area where gas pipes can be installed is gradually being limited.

This requires various technologies for the safe transportation of gas, and PIG, which is already developed and used in advanced countries, is a good example.

Pipeline PIG system is a device inserted into a pipe and propelled by a flowing medium. It was originally developed to remove sediments and the like that obstruct the flow of the medium.

However, PIG's scope of application is now very wide enough to be used in almost all stages of pipe operation, from the construction, maintenance, and dismantling of pipes. Has become an essential element.

In addition, PIG is used to determine the fluctuations in the pipe itself, the location / shape / size of the inner dents or protruding blocks, and whether the pipe is warped. Since they do not have these technologies, they have to rely on foreign companies that already have the technology to maintain and repair gas pipelines.

However, in the case of requesting a foreign company, there is a problem of failing to transfer the technology to the high value-added PIG, resulting in the continuous outflow of many foreign currency.

Therefore, in the future when energy consumption will increase further, the size of gas pipelines will gradually increase, and accordingly, the cost required to inspect the entire gas pipeline will be increased. The situation is monopolized exclusively in Korea, so the need to develop PIG system independently in Korea is increasing.

The technical problem to be achieved by the present invention is to add a mileage measuring device that can calculate the mileage of the pig as well as to check the pipe condition, so that the maintenance and repair of the pipe can be made more efficiently, The inspection of gas pipes and various pipe inspections, which had been dependent on foreign companies, can be done with domestic technology, and the basis for developing various precision equipments that require saving of foreign currency and similar technology to those used in PIG equipment can be developed. The purpose is to provide.

With reference to the accompanying drawings illustrating the configuration and operation of the present invention in more detail as follows.

1 is an exemplary view of a mileage measurement device installed in a pig (PIG) according to the present invention,

2 and 3 are a front view and a plan view of a mileage measuring apparatus according to the present invention,

4 is a reference diagram showing the operation of the present invention,

<Description of the symbols for the main parts of the drawings>

P: Piping 10: Body

16: Marine Frame 80: Mileage Meter

81: shaft pin 82: support member

84: roller 85: fixing pin

86: gear 87: gear home

88: sensor

1 is an exemplary view of a mileage measurement apparatus attached to the pig according to the present invention, Figures 2 and 3 are a front view and a plan view of the mileage measurement apparatus according to the present invention.

The mileage measuring device mounted to the pig of the present invention (PIG) and the body 10 of the cylindrical body; A plurality of guide links 20 radially installed along the outer circumferential surface of the body 10; A tension spring (30) fixed to the center portion of the guide link (20) and installed on the cable such that the guide link (20) can rotate in one direction by the cable; Assembled in the guide link 20, the end of the roller 50 is assembled to the auxiliary guide 40 in contact with the inner circumferential surface of the pipe (P); consisting of, move along the pipe and the presence or absence of obstacles inside the pipe And maintenance of piping by facilitating inspection of pipes and various piping inspections by inspecting the damage / damage points of pipes, for example, the position / shape / size of the inner dents or protruding blocks, and whether the pipes are warped. Install a pair of mileage measuring device 80 consisting of a spring 81, the support member 82, the roller 84 and the sensor 88 to detect the number of revolutions at the rear of the pig for maintenance / repair, Through close contact with the inner peripheral surface of the pipe (P) to measure the mileage.

As such, the traveling distance measuring device 80 installed at the rear of the pig may include a support member 82 having one end thereof fixed to the body frame 16 by the shaft pin 81; A spring 82 'interposed between the body frame 16 fixed to the shaft pin 81 and the support member 82 to impart an elastic force to the support member 82; A roller (84) assembled at the other end of the support member (82) to make a rolling contact with the inner circumferential surface of the pipe (P); A tooth (86) fixed to one side of the roller (84) by a fixing pin (85) to rotate together; It is fixed to the inner surface of the support member 82, the detection sensor 88 for detecting the rotation amount of the roller 84 and thereby the tooth 86 is changed due to contact with the inner peripheral surface of the pipe; 10) are arranged to be disposed on each side of each other.

Auxiliary sensors in the present invention include a speedometer, a position reference point, and a weld detector of a pipe, and the speedometer provides a measurement of the movement distance per unit time of the PIG. GPS is used to accurately measure the reference position every certain distance of the pipe using GPS.

Figure 4 shows the reference diagram showing the operating relationship of the present invention with reference to this the effect of the present invention is as follows.

When checking the state inside the pipe P, as shown in the drawing, when one side end of the pig which is to check the inside of the pipe P is pushed into the inside of the pipe P, the installed roller 84 In close contact with the inner circumferential surface of the pipe P, the roundness of the pipe is examined.

In this state, when the body moves along the inner circumferential surface of the pipe P, the piglets move along the inner surface of the pipe. At this time, the roller 84 attached to the support member 82 is in intimate contact with the inner circumferential surface of the pipe to calculate the traveling distance of the pig.

If there is an uneven surface or crack in the middle of moving the pig, the roller 84 passing through the corresponding position moves up and down along the uneven or crack shape.

As described above, the mileage measuring device 80 moves in the same manner as the pig moves, and the roller 84 which is in contact with the cloud along the inner circumferential surface of the pipe P rotates as the pig proceeds. Gear (86) also installed as a rotational movement together.

As such, when the gear 86 rotates, grooves 87 are formed on the outer circumferential surface of the gear 86 at regular intervals, so that the detection sensor 88 reads the number of the grooves and transmits a data signal to the manager server. Based on this, the administrator can measure the moving distance of the pig.

As described above, the present invention consists of a cylindrical cylinder configured to inspect and inspect the inside of the pipe, so that the roller of the mileage measuring device moves along the inner circumferential surface of the pipe, so that the moving distance of the pig can be known. It is a very useful design with the advantage that the inspection for the maintenance of the pipe can be made more efficiently.

Claims (2)

In inspecting the inside of the pipe by using the piglet moving inside the pipe P, A mileage measuring device mounted to a pig (PIG), characterized in that a pair of mileage measuring device 80 is arranged to measure the mileage at the rear of the pig. According to claim 1, The mileage measuring device 80 is installed to be opposite to both sides of the body 10 so as to face each other is installed on the back portion of the pig, one end is the shaft pin 81 in the body frame (16) A support member 82 fixed to the cover member; A spring 82 'interposed between the body frame 16 fixed to the shaft pin 81 and the support member 82 to impart an elastic force to the support member 82; A roller (84) assembled at the other end of the support member (82) to make a rolling contact with the inner circumferential surface of the pipe (P); A tooth (86) fixed to one side of the roller (84) by a fixing pin (85) to rotate together; The sensor is fixed to the support member 82 for detecting the amount of rotation of the gear (86); The mileage measuring device mounted to the pig (PIG), characterized in that consisting of.