KR20210133589A - Pig for cleaning pipeline and apparatus for cleaning pipeline using the same - Google Patents

Abstract

Disclosed are a pig for cleaning a pipeline and a pipeline cleaning apparatus using the same. In accordance with one embodiment of the present invention, the pig for cleaning a pipeline includes: a first body part formed into a cylindrical shape while formed into a hemispheric shape having a convex front side, having a concave groove formed on the rear side, and having the outer wall in tight contact with the inner wall of a pipeline; a second body part placed apart from the rear side of the first body part, formed into a cylindrical shape while having a first through hole penetrated therein in a longitudinal direction, and having the outer wall in tight contact with the inner wall of the pipeline; and a connection frame including one end part inserted into the concave groove to be combined with the first body part, the other end part inserted into the first through hole to be combined with the second body part, and a center part connecting the one end part with the other end part while having a plurality of spray holes formed in a circumferential direction, thereby forming a flow path leading a fluid introduced through the first through hole to flow into the concave groove. Therefore, the present invention is capable of efficiently removing foreign substances deposited on the inner wall of the pipeline.

Description

Pig for cleaning pipe and pipe cleaning device using the same

The present invention relates to a pipe cleaning pig and a pipe washing apparatus using the same, and more particularly, to a pipe washing pig capable of effectively removing foreign substances deposited in a pipe, and a pipe washing apparatus using the same.

In general, pipelines buried underground (eg, water supply pipes, etc.) undergo a process of periodically removing foreign substances (scale, sludge, etc.) deposited or attached to the inner wall of the water supply pipe using various types of cleaning devices. In this case, a pig made of polyurethane (Poly Urethane) material, which has excellent elasticity, is mainly put into the water supply pipe, and while the pig is moved inside the water pipe, foreign substances deposited on the inner wall of the water pipe by friction between the pig and the inner wall of the water pipe. The method of cleaning the inside of the water supply pipe by peeling it off is used.

Specifically, for cleaning the water pipe using a pig, after inserting the pig into the inlet provided on one side of the water pipe, compressed air or high-pressure pressurized water is blown through the water pipe to move the pig along the water pipe and deposit it on the inner wall of the water pipe. remove foreign matter And the pig moved inside the water pipe is spaced a predetermined distance from the inlet and discharged through the outlet provided on the other side of the water pipe.

Since the conventional cleaning of the water pipe using the pig simply removes the foreign material while moving the pig inside the water pipe, in order to remove the foreign material deposited on the inner wall of the water pipe, repeatedly put the pig into the water pipe and clean water The pig was repeatedly moved inside the water pipe until it was discharged.

However, in the case of removing foreign substances deposited on the inner wall of the water supply pipe according to the conventional method, the film protecting the inner wall of the water pipe is likely to be damaged by repeated friction between the pig and the inner wall of the water pipe, and the inside of the water pipe In the case of repeatedly moving the pig several times, there was a problem in that the tap water supply stop time was increased and a lot of tap water was wasted in the washing process.

Republic of Korea Patent Registration No. 10-0847514 (2008.07.21. Announcement)

Therefore, the technical problem to be solved by the present invention is to efficiently remove foreign substances deposited on the inner wall of the pipe, such as a water supply pipe, minimize damage to the inner film of the pipe, and stop the supply of tap water and the like consumed for washing the pipe. An object of the present invention is to provide a pipe for cleaning a pipe that can minimize time and a pipe washing device using the same.

According to one aspect of the present invention, the first body portion is formed in a cylindrical shape, the front is formed in a convex hemispherical shape, the concave groove is formed in the rear, the outer wall is in close contact with the inner wall of the conduit; a second body portion disposed to be spaced apart from the rear of the first body portion and formed in a cylindrical shape and having a first through hole penetrated therein in the longitudinal direction, the outer wall of which is in close contact with the inner wall of the conduit; and one end inserted into the concave groove and coupled to the first body portion, the other end inserted into the first through hole and coupled to the second body portion, and one end and the other end interconnected in a circumferential direction A pipe for cleaning a pipe including a connecting frame having a central portion in which a plurality of injection holes are formed along the first through hole and forming a flow path through which the fluid introduced through the first through hole is introduced into the concave groove may be provided.

A central portion of the connection frame may be formed of a flexible hose.

One end and the other end of the connection frame may be made of steel or synthetic resin having durability in which the shape is maintained against the pressure of the fluid introduced through the first through hole.

The connection frame may further include a plurality of protrusions formed to protrude from the outer wall of the other end in the direction of the inner wall of the conduit and provided in plurality to be spaced apart from each other in the longitudinal direction and coupled to the second body.

A washing space is formed between the center of the connection frame and the inner wall of the conduit, in which the inner wall of the conduit is washed by the high-pressure fluid injected from the injection hole, provided on the outer wall of the center of the connecting frame and disposed in the washing space, the conduit It may further include a brush (brush) for peeling off foreign substances deposited on the inner wall of the.

The first body portion may further include a plurality of second through-holes communicating with the washing space and penetrating therein along a longitudinal direction, and the plurality of second through-holes may be disposed to be spaced apart from each other in a circumferential direction.

A compressed air injection hose for supplying compressed air to the first through-hole is connected to communicate, and may further include an air inlet coupled to the rear of the second body portion to cover one side of the first through-hole.

The first body part and the second body part may be a blended copolymer of a polysiloxane represented by the following Chemical Formula 1, a polycarbonate-based resin represented by the following Chemical Formula 2, and an aramid-based resin represented by the following Chemical Formula 3.

[Formula 1]

each R ₁ is independently a C _1-6 alkyl or phenyl group; R ₂ is hydrogen or C _1-6 alkyl; R ₃ is C _1-10 alkyl or oxygen; p and q are integers from 0 to 10,

[Formula 2]

R ₄ , R ₅ , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are the same as or different from each other _{and are each independently hydrogen, halogen, C 1-6} alkyl or phenyl, wherein R ₄ , at least 3 of _{R 5} , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R _{11 are halogen;} R ₁₂ is cyano, oxiranylmethyl or ethenylmethyl;

Y is dimethylphenyl or trimethylphenyl; r and s are integers from 0 to 30;

[Formula 3]

In Formula 1, R ₁₃ is phenyl or oxydibenzenyl, R ₁₄ is phenyl or naphthyl, and t is an integer of 1 to 5.

5 to 89.9% by weight of the polysiloxane represented by Formula 1, 5 to 89.9% by weight of the polycarbonate-based resin represented by Formula 2, and 5 to 89.9% by weight of the aramid-based resin represented by Formula 3 may be included.

The surfaces of the first body part and the second body part are each independently uncoated or a non-conjugated polyene represented by the following Chemical Formula 4, a first silane-based resin represented by the following Chemical Formula 5, and a second represented by the following Chemical Formula 6 It may be coated with a composition comprising a silane-based resin.

[Formula 4]

wherein R _a and R _b are the same as or different from each other, each independently represent hydrogen or C _1-6 alkyl, n is an integer from 0 to 10,

[Formula 5]

Rf is C _1-10 alkyl, c is an integer from 3 to 50, d and e are each independently an integer from 1 to 10,

[Formula 6]

h and j are integers from 1 to 10;

The thickness of the coating layer coated on the surface of the first body portion and the second body portion may be each independently 0.5 to 30㎛.

According to another aspect of the present invention, a pipe for washing a pig; and a first imaging device connected to the front of the first body part to check the internal state of the conduit before washing.

a second imaging device connected to the rear of the second body or a hose for injecting compressed air connected to the rear of the second body to check the internal state of the conduit after washing; a winch around which the compressed air injection hose is wound; and a display unit provided on the winch to display the running distance and running speed of the pipe cleaning pig according to the winding and unwinding operation of the compressed air injection hose.

In the embodiments of the present invention, foreign substances deposited on the inner wall of the conduit are first peeled off with the first body part, and the fluid is sprayed on the inner wall of the conduit through the injection holes formed in the connection frame to clean the fine foreign substances deposited on the inner wall of the conduit again. Then, by peeling the foreign material deposited on the inner wall of the conduit with the second body portion, the foreign material deposited on the inner wall of the conduit may be efficiently removed.

In addition, since the embodiments of the present invention have an excellent effect in removing foreign substances deposited on the inner wall of the pipe, it is possible to reduce the number of times that the pig is repeatedly moved from the inside of the pipe to remove the foreign substances, thereby minimizing damage to the inner film of the pipe. In addition, it is possible to minimize the amount of tap water consumed for cleaning pipelines and the interruption time of the supply of tap water, etc.

1 is a perspective view showing a pipe for cleaning a pig according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 .
3 is an operation state diagram illustrating a foreign material removal operation in a process in which the pipe cleaning pig according to the first embodiment of the present invention moves along a straight pipe.
4 is an operation state diagram illustrating a foreign material removal operation in a process in which the pipe cleaning pig according to the first embodiment of the present invention moves along the curved pipe.
5 is a perspective view showing a pipe for cleaning a pig according to a second embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along line BB of FIG. 4 .
7 is an operation state diagram illustrating a foreign material removal operation in a process in which a pipe cleaning pig according to a second embodiment of the present invention moves along a straight pipe.
8 is an operation state diagram illustrating a foreign material removal operation in a process in which a pipe cleaning pig according to a second embodiment of the present invention moves along a curved pipe.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

In this embodiment, the pipe is described as an example of a water supply pipe for supplying tap water, but the scope of the present invention is not limited thereto, and any pipe through which a fluid passes, such as a gas pipe, an oil pipe, etc. can be used.

Hereinafter, the pig 200 for cleaning a pipe according to the first embodiment of the present invention will be described as follows.

1 is a perspective view showing a pipe for cleaning a pig according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along AA of FIG. 1, and FIG. 3 is a pipe for washing a pig according to a first embodiment of the present invention It is an operation state diagram showing the foreign material removal operation in the process of moving along the straight pipe, and FIG. 4 is the operation showing the foreign material removal operation in the process of moving the pipe cleaning pig according to the first embodiment of the present invention along the curved pipe. state diagram

1 to 4 , the pipe cleaning pig 200 according to the first embodiment of the present invention includes a first body portion 210 and a first body portion spaced apart from the rear of the first body portion 210 . 2 body portion 230 and a connecting frame disposed between the first body portion 210 and the second body portion 230 to interconnect the first body portion 210 and the second body portion 230 ( 250).

The pipe cleaning pig 200 according to the first embodiment of the present invention is moved inside the conduit P by the pressure difference between the front of the first body 210 and the rear of the second body 230 . do.

The first body portion 210 according to the present embodiment is in close contact with the inner wall of the conduit (P) and serves to primarily peel foreign substances deposited in the conduit (P) while moving along the conduit (P).

The first body 210 is formed in a cylindrical shape to correspond to the cross-sectional shape of the conduit P, and the front of the first body 210 has a convex hemispherical shape.

In addition, a concave concave groove 211 is formed in the rear of the first body portion 210 . The concave groove 211 formed at the rear of the first body 210 forms an inflow space into which the fluid flows, and the high-pressure fluid pressure is transmitted to the concave groove 211 to pass the first body 210 into the conduit ( P) to be moved inside. At this time, when the first body part 210 is moved inside the conduit P by the high-pressure fluid pressure, the second body part 230 connected by the connection frame 250 is also the first body part 210 together. It is towed by and moved in the pipe (P).

The outer diameter of the first body portion 210 may be formed to be larger than the inner diameter of the pipe (P) by about 1 ~ 5mm. Therefore, the outer wall of the first body portion 210 is moved in close contact with the inner wall of the conduit (P).

In addition, the first body portion 210 peels foreign substances deposited on the inner wall of the conduit P by friction with the inner wall of the conduit P while the first body 210 moves along the inside of the conduit P by the high-pressure fluid.

The second body portion 230 according to the present embodiment is disposed to be spaced apart from the rear of the first body portion 210, is in close contact with the inner wall of the conduit (P), and moves along the conduit (P) again in the conduit (P). It serves to exfoliate the accumulated foreign material.

The second body portion 230 is formed in a cylindrical shape to correspond to the cross-sectional shape of the conduit (P). In addition, the second body portion 230 has a first through hole 231 penetrated in the longitudinal direction is formed therein. The first through hole 231 is connected in fluid communication with the concave groove 211 of the first body 210 by the connection frame 250 .

Like the outer diameter of the first body 210 , the outer diameter of the second body 230 may be formed to be larger than the inner diameter of the conduit P by about 1 to 5 mm. Therefore, the outer wall of the second body portion 230 is moved in close contact with the inner wall of the conduit (P).

In addition, the foreign material deposited on the inner wall of the conduit P is peeled off primarily by the first body 210, but the foreign material is not peeled off by the first body 210 and remains on the inner wall of the conduit P In this case, it is peeled off again by the second body part 230 . That is, the second body portion 230 is moved along the inside of the conduit (P) together with the first body portion (210) while the outer wall remains on the inner wall of the conduit (P) by friction with the inner wall of the conduit (P). Remove foreign substances.

On the other hand, in the present embodiment, while the first body portion 210 and the second body portion 230 are moved inside the conduit P by the high-pressure fluid, the front of the first body portion 210 and the second The first body 210 and the second body 230 may be compressed in the longitudinal direction by the pressure difference between the rear of the body 230 . In particular, the pressure of the high-pressure fluid directly acts on the rear of the second body part 230 . In this case, the outer diameters of the first body part 210 and the second body part 230 are increased, so that the first body part 210 and the second body part 230 are not easily moved in the conduit (P). may not be That is, when the first body portion 210 and the second body portion 230 are compressed in the longitudinal direction to increase the outer diameter, the flow path of the conduit P may be blocked.

Therefore, in the present embodiment, the first body portion 210 and the second body portion 230 are not deformed by the high-pressure fluid, but are in close contact with the inner wall of the pipe with strong elasticity, and have water repellency, oil repellency and antifouling properties. To prevent the deposited foreign substances from adhering to the first body portion 210 and the second body portion 230, polysiloxane represented by the following Chemical Formula 1, a polycarbonate-based resin represented by the following Chemical Formula 2, and an aramid-based resin represented by the following Chemical Formula 3 It may be composed of a composition comprising a blended copolymer of a resin.

[Formula 1]

each R ₁ is independently a C _1-6 alkyl or phenyl group;

R ₂ is hydrogen or C _1-6 alkyl;

R ₃ is C _1-10 alkyl or oxygen;

p and q are integers from 0 to 10,

[Formula 2]

R ₄ , R ₅ , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are the same as or different from each other _{and are each independently hydrogen, halogen, C 1-6} alkyl or phenyl, wherein R ₄ , at least 3 of _{R 5} , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R _{11 are halogen;}

R ₁₂ is cyano, oxiranylmethyl or ethenylmethyl;

Y is dimethylphenyl or trimethylphenyl;

r and s are integers from 0 to 30;

[Formula 3]

in formula 1

R ₁₃ is phenyl or oxydibenzenyl,

R ₁₄ is phenyl or naphthyl,

t is an integer from 1 to 5;

In one embodiment of the present invention, the perfusion washing pig 200 is 5 to 89.9% by weight of polysiloxane represented by Formula 1, 5 to 89.9% by weight of polycarbonate-based resin represented by Formula 2 Aramid-based represented by Formula 3 5 to 89.9% by weight of the resin may be included.

When the material of the pig 200 is an aramid-based resin, polysiloxane, and a blending copolymer of polycarbonate-based resin, compressive strength is excellent, and deformation of the shape does not occur even under strong pressure of the fluid. In addition, it has excellent wear resistance, thermal stability, insulation, chemical resistance, chemical resistance, high melting temperature and antifouling properties. The properties of the blending copolymer according to the present invention make it suitable not only for water pipes, but also for washing sewer pipes, gas pipes or oil pipelines that require chemical resistance, chemical resistance and antifouling properties as essential.

According to the present invention, in order to further improve antifouling properties, improve adhesion with the inside of the pipe line (P), and provide a low coefficient of friction, the surfaces of the first body part 210 and the second body part 230 are each independent. It may be uncoated or coated with a composition comprising a non-conjugated polyene represented by the following Chemical Formula 4, a first silane-based resin represented by Chemical Formula 5, and a second silane-based resin represented by Chemical Formula 6 below.

[Formula 4]

wherein R _a and R _b are the same as or different from each other and each independently represent hydrogen or C _1-6 alkyl;

n is an integer from 0 to 10,

[Formula 5]

Rf is C _1-10 alkyl,

c is an integer from 3 to 50;

d and E are each independently an integer from 1 to 10,

[Formula 6]

h and j are integers from 1 to 10;

The coating film formed by the composition provides additional wear resistance to the first body portion 210 and the second body portion 230 and at the same time increases adhesion with the inside of the conduit (P), so that the removal of foreign substances is easy. In addition, the additional formation of the coating film improves antifouling properties, thereby reducing the phenomenon in which foreign substances deposited in the pipeline stick to the pig 200 .

A method of forming the coating film includes a dipping method, a spin coating method, a spray method, a flow method, a doctor blading method, and the like, and a hard coating film may be formed by curing the formed coating film using heat, ultraviolet rays or electron beams.

In one embodiment of the present invention, the film thickness of the coating film may be 0.5 to 30 μm, and if it is less than the above range, there is no effect of increasing the antifouling property, and if it is too thick, there is a risk of deformation.

Meanwhile, in the present embodiment, the first body portion 210 and the second body portion 230 are interconnected by a connection frame 250 .

The connection frame 250 according to the present embodiment interconnects the first body part 210 and the second body part 230 and is introduced through the first through hole 231 of the second body part 230 . It serves as a flow path for transferring the fluid to the concave groove 211 which is an inflow space formed in the first body portion 210 .

One end 251 of the connection frame 250 is inserted into the concave groove 211 and coupled to the first body portion 210 , and the other end 253 of the connection frame 250 has a first through hole 231 . is inserted into and coupled to the second body portion 230 . In addition, one end 251 and the other end 253 of the connection frame 250 may be made of steel or synthetic resin having durability that maintains its shape against the high-pressure fluid pressure introduced through the first through-hole 231 . have.

In addition, the connection frame 250 is formed to protrude in the direction of the inner wall of the conduit P on the outer wall of the other end portion 253 and further includes a plurality of protrusions 254 coupled to the second body portion 230 .

A plurality of protrusions 254 are provided on the outer wall of the other end 253 of the connection frame 250 to be spaced apart from each other in the longitudinal direction. In addition, the protrusion 254 may be formed continuously along the circumferential direction on the outer wall of the other end 253 of the connection frame 250, but is not limited thereto. can

In addition, the plurality of protrusions 254 are radially inserted into and coupled to the inner wall of the first through hole 231 .

In particular, when the first body part 210 and the second body part 230 are moved inside the conduit (P) by the high-pressure fluid, the high-pressure fluid is directly to the rear of the second body part 230 . In order to prevent the second body 230 from being separated from the other end 253 of the connecting frame 250 , in this embodiment, a plurality of protrusions 254 on the outer wall of the other end 253 of the connecting frame 250 . ) is prepared.

In addition, since the plurality of protrusions 254 are coupled to the second body 230 as described above, when the high-pressure fluid directly acts on the rear of the second body 230, the plurality of protrusions 254 It is possible to prevent the second body from being compressed in the longitudinal direction from increasing the outer diameter. Accordingly, it is possible to block the second body portion 230 from being compressed in the longitudinal direction by the high-pressure fluid to block the flow path of the conduit (P).

In addition, the central portion 255 of the connection frame 250 is integrally formed with one end 251 and the other end 253 of the connection frame 250, so that one end 251 and the other end 253 of the connection frame 250 are formed integrally. ) are interconnected. And the central portion 255 of the connection frame 250 may be made of a flexible hose (flexible hose) having flexibility. In particular, when a portion of the pipe (P) is formed of a curved pipe, the central portion 255 of the connecting frame 250 is bent so that the pipe cleaning pig 200 can be easily moved along the pipe (P).

And in the center 255 of the connection frame 250, a plurality of injection holes 257 are formed to be spaced apart from each other in the circumferential direction and the longitudinal direction. The high-pressure fluid introduced through the first through-hole 231 is injected from the injection holes 257 formed in the central portion 255 of the connection frame 250 to the inner wall of the conduit P.

In this embodiment, since the center 255 of the connection frame 250 is spaced apart from the inner wall of the conduit P, there is a washing space S between the center 255 of the connecting frame 250 and the inner wall of the conduit P. ) is formed. Since the high-pressure fluid injected from the injection holes 257 is injected in the washing space S and rotates in the washing space S, the fine foreign substances deposited on the inner wall of the conduit P are in the washing space S. It may be peeled off or washed from the inner wall of the pipeline (P) by the injected high-pressure fluid.

And, the pipe cleaning pig 200 according to the first embodiment of the present invention is provided on the outer wall of the central portion 255 of the connection frame 250, is disposed in the washing space (S) and deposited on the inner wall of the pipe (P). A brush 270 for exfoliating foreign substances may be further included.

When the pipe cleaning pig 200 is moved inside the pipe line P by the high-pressure fluid, the pipe washing pig 200 is moved inside the pipe pipe P while turning. Accordingly, foreign substances deposited on the inner wall of the conduit P by the fluid injected into the washing space S through the injection holes 257 and the brush 270 in the washing space S are further removed from the inner wall of the conduit P. It can be peeled off efficiently.

On the other hand, the concentration of foreign substances contained in the fluid accommodated in the washing space (S) by the high-pressure fluid and the brush 270 injected from the injection holes (257) is increased. At this time, when the fluid injected through the injection holes 257 accumulates in the washing space S, the pressure of the fluid in the washing space S increases, so that the pressure of the fluid injected into the washing space S decreases or the washing space S ) in the fluid may flow back to the injection holes 257 . In particular, when the fluid containing foreign substances flows backward through the injection holes 257 and accumulates in the connection frame 250 , the injection holes 257 can be blocked, so that the pressure of the fluid injected from the injection holes 257 is reduced. Also, when the fluid containing the foreign material is discharged to the rear of the second body 230 through the other end 253 of the connection frame 250, the foreign material may be deposited on the inner wall of the conduit P again. .

Accordingly, in this embodiment, a plurality of second through-holes communicated with the washing space S in the interior of the first body 210 and penetrated along the longitudinal direction so as to discharge the fluid contained in the washing space S. 213) is formed. The plurality of second through holes 213 may be disposed to be spaced apart from each other in the circumferential direction.

The fluid accommodated in the washing space (S) as much as the flow rate of the fluid injected from the injection holes (257) to the washing space (S) is discharged to the front of the first body part (210) through the plurality of second through holes (213). do. Accordingly, foreign substances peeled off from the inner wall of the conduit P by the high-pressure fluid sprayed from the first body portion 210 and the plurality of injection holes 257 and the brush 270 are removed from the plurality of second through-holes 213 . Since it is discharged to the front of the first body 210 through the , foreign substances are accumulated inside the connection frame 250 or discharged to the rear of the second body 230 to prevent it from being deposited on the inner wall of the conduit P again. can do.

The operation of the pipe cleaning pig 200 according to the first embodiment of the present invention configured as described above will be described as follows.

Referring to FIG. 3 , the first body part 210 , the second body part 230 , and the pipe cleaning pig 200 having the connection frame 250 are inserted into the pipe pipe (P). And when a high-pressure fluid is supplied to the rear of the second body part 230 , the high-pressure fluid flows along the first through-hole 231 and the connection frame 250 of the second body part 230 to the first body part 210 . ) is transmitted to the concave groove 211, the first body portion 210 is moved inside the conduit P by the high-pressure fluid pressure, and the second body portion 230 connected by the connection frame 250 is It is pulled by the first body portion 210 and moved in the conduit P together with the first body portion 210 .

At this time, the pipe cleaning pig 200 is moved along the pipe pipe (P) while turning in the spiral direction in the inside of the pipe pipe (P).

While the pipe cleaning pig 200 is moved while turning, the outer wall of the first body 210 is moved while in close contact with the inner wall of the pipe P, and foreign substances deposited on the inner wall of the pipe P are peeled off. .

In addition, foreign substances remaining on the inner wall of the conduit P without being peeled off by the first body 210 are in the washing space S formed between the center 255 of the connection frame 250 and the inner wall of the conduit P. It is peeled off again by the sprayed high-pressure fluid and the brush 270 . And the fluid containing the foreign material accommodated in the washing space (S) is discharged to the front of the first body portion 210 through the second through holes (213).

And finally, the foreign material deposited on the inner wall of the conduit P is finally peeled off while the outer wall of the second body 230 is moved while being in close contact with the inner wall of the conduit P.

As described above, in this embodiment, the first body portion 210 peels off foreign substances deposited on the inner wall of the conduit (P), and the high-pressure fluid is piped through the injection holes 257 formed in the connection frame 250 . At the same time as spraying on the inner wall of (P), the fine foreign material deposited on the inner wall of the conduit (P) is peeled off again with the brush 270, and then deposited on the inner wall of the conduit (P) with the second body portion 230 (P). By peeling off the foreign material, the foreign material accumulated on the inner wall of the conduit P can be efficiently removed.

As such, in this embodiment, the high-pressure fluid sprayed from the first body portion 210 and the injection holes 257 and the brush 270 and the second body portion 230 are deposited on the inner wall of the conduit (P). Since the foreign material is peeled off, it is possible to reduce the number of times that the pig 200 is repeatedly moved inside the conduit (P) to remove the foreign material, thereby minimizing damage to the inner film of the conduit (P) and also cleaning the conduit (P) It is possible to minimize the amount of tap water consumed and the downtime of tap water supply.

In addition, referring to FIG. 4 , when a portion of the pipe line P is formed as a curved pipe, the center 255 of the connection frame 250 made of a flexible hose having flexibility is bent and the pipe line P is a cleaning pig 200 can be easily moved along the curved pipe-shaped pipe (P).

On the other hand, referring to FIGS. 3 and 4 , in the case of washing the pipe line P using the pipe line washing pig 200 as described above, the pipe line washing device 100 is the above-mentioned pipe line washing pig ( 200) and a first imaging device 300 connected to the front of the pipe cleaning pig 200 to check the internal state of the pipe pipe P before washing.

The operator checks the internal state of the conduit P through the first imaging device 300 before washing the conduit P, and determines the amount of high-pressure fluid supplied to the conduit P, the hydraulic pressure of the fluid, etc. .

The first imaging device 300 is connected to the front of the first body 210 to photograph the internal state of the conduit P before washing in real time. Since the operator can check the internal state of the conduit P from the image captured and transmitted by the first imaging device 300, the first imaging device ( 300), it is possible to adjust the amount of high-pressure fluid, etc. according to the state of the foreign material deposited on the inner wall of the conduit P identified from the image transmitted in real time.

Hereinafter, the pipe cleaning pig 200a according to the second embodiment of the present invention will be described as follows.

5 is a perspective view showing a pipe cleaning pig according to a second embodiment of the present invention, FIG. 6 is a cross-sectional view taken along BB of FIG. 4, and FIG. 7 is a pipe cleaning pig according to a second embodiment of the present invention. It is an operation state diagram showing a foreign material removal operation in the process of moving along a straight tube, and FIG. 8 is an operation showing a foreign material removal operation in the process of moving a pipe cleaning pig according to the second embodiment of the present invention along a curved tube. state diagram

5 to 8 , the pipe cleaning pig 200a according to the second embodiment of the present invention has a first body portion 210a and a first body portion spaced apart from the rear of the first body portion 210a. 2 body portion 230a and a connecting frame disposed between the first body portion 210a and the second body portion 230a to interconnect the first body portion 210a and the second body portion 230a ( 250a), a brush (270a) provided on the outer wall of the central portion (255a) of the connection frame (250a) to remove foreign substances deposited on the inner wall of the conduit (P), and a compressed air injection hose (H) are connected in communication with each other. 2 includes an air inlet (290a) coupled to the rear of the body portion (230a).

The first body portion 210a and the second body portion 230a, the connecting frame 250a, and the brush 270a according to the second embodiment of the present invention are the first body portion according to the first embodiment of the present invention. Since the 210 and the second body portion 230, the connecting frame 250 and the brush 270 are the same, a detailed description thereof will be omitted.

The pipe cleaning pig 200a according to the second embodiment of the present invention is moved in the pipe P by the compressed air supplied to the first through hole 231a of the second body 230a.

In this embodiment, it includes an air inlet 290a coupled to the rear of the first body portion 210a to supply compressed air to the first through hole 231a.

The air inlet 290a is coupled to the rear of the second body 230a to cover one side of the first through hole 231a formed in the second body 230a. In addition, since compressed air must be supplied to the first through-hole 231a, the air inlet 290a is connected to the compressed air injection hose (H) in communication. Compressed air supplied through the compressed air injection hose (H) is an air inlet (290a), a first through hole (231a) of the second body part (230a), a connection frame (250a) and a first body part (210a). It is supplied to the concave groove (211a) of the pipe for cleaning the pig (200a) to move in the inside of the pipe (P). This causes the pressure of the compressed air to be transferred to the concave groove 211a to move the first body portion 210a inside the pipeline P, and the first body portion 210a to the pipeline P by the high-pressure compressed air. ), the second body portion 230a connected by the connection frame 250a is also pulled by the first body portion 210a when moving in the inside of the conduit (P).

The operation of the pipe cleaning pig 200a according to the second embodiment of the present invention configured as described above will be described as follows.

Referring to Figure 7, after fastening the air inlet (290a) connected to the compressed air injection hose (H) to the rear of the second body portion (230a), the pipe cleaning pig (200a) inside the pipe (P) insert And when compressed air is supplied to the compressed air injection hose (H), the high-pressure compressed air is concave of the first body portion (210a) along the air inlet (290a), the first through hole (231a), and the connection frame (250a). The first body portion 210a is transferred to the groove 211a, and the first body portion 210a is moved inside the conduit P by high-pressure compressed air, and the second body portion 230a connected by the connection frame 250a is the first body. It is pulled by the portion 210a and moved in the conduit P together with the first body portion 210a.

At this time, the pipe cleaning pig (200a) is moved along the pipe (P) while turning in the spiral direction in the inside of the pipe (P).

While the pipe cleaning pig 200a is moved while turning, the outer wall of the first body 210a is moved while in close contact with the inner wall of the pipe P, and foreign substances deposited on the inner wall of the pipe P are peeled off. .

In addition, foreign substances remaining on the inner wall of the conduit P without being peeled off by the first body 210a are in the washing space S formed between the central portion 255a of the connection frame 250a and the inner wall of the conduit P. It is peeled off again by the bubbles and the brush 270a generated by the high-pressure compressed air that is injected. And the fluid containing the foreign material accommodated in the washing space (S) is discharged to the front of the first body (210a) through the second through-holes (213a) formed in the first body (210a).

And finally, the foreign material deposited on the inner wall of the conduit P is finally peeled off while the outer wall of the second body 230a is moved while being in close contact with the inner wall of the conduit P.

As described above, in this embodiment, the first body portion 210a peels off foreign substances deposited on the inner wall of the conduit P, and high-pressure compressed air is supplied through the injection holes 257a formed in the connection frame 250a. At the same time as spraying on the inner wall of the conduit (P), the fine foreign material deposited on the inner wall of the conduit (P) is peeled off again with a brush (270a), and then deposited on the inner wall of the conduit (P) with the second body portion (230a) By peeling off the foreign material, it is possible to efficiently remove the foreign material deposited on the inner wall of the conduit P.

As such, in this embodiment, the high-pressure compressed air injected from the first body portion 210a and the injection holes 257a and the brush 270a and the second body portion 230a are deposited on the inner wall of the conduit (P). Since the foreign material is peeled off, it is possible to reduce the number of times the pig 200a is repeatedly moved from the inside of the conduit (P) to remove the foreign material, thereby minimizing damage to the inner film of the conduit (P). It is possible to minimize the amount of tap water consumed for washing and the downtime of tap water supply.

In addition, referring to FIG. 8 , when a portion of the pipe line P is formed as a curved pipe, the central portion 255a of the connection frame 250a made of a flexible hose having flexibility is bent so that the pipe line washing pig 200a (200a) can be easily moved along the curved pipe-shaped pipe (P).

On the other hand, with reference to FIGS. 7 and 8 , in the case of washing the pipe line P using the pipe line washing pig 200a as described above, the pipe line washing device 100a is the above-described pipe line washing pig ( 200a), the first imaging device 300a connected to the front of the pipe cleaning pig 200a to check the internal state of the pipe P before washing, and the rear or compression of the pipe washing pig 200a A second imaging device 350a connected to the air injection hose (H) to check the internal state of the pipe line (P) after washing, and a winch 400a on which the compressed air injection hose (H) is wound; It may include a display unit (not shown) provided on the winch 400a to display the running distance and running speed of the pipe cleaning pig 200a according to the winding and unwinding operation of the compressed air injection hose (H).

The operator checks the internal state of the pipe P through the first imaging device 300a before cleaning the pipe P, and determines the amount of compressed air supplied to the pipe P, the air pressure of the compressed air, etc. do.

The first imaging device 300a is connected to the front of the first body portion 210a to photograph the internal state of the conduit P before washing in real time. Since the operator can check the internal state of the conduit P from the image captured and transmitted by the first imaging device 300a, while moving the pipe cleaning pig 200a along the pipe P, the first imaging device ( 300a), it is possible to adjust the amount of compressed air, air pressure, etc. according to the state of the foreign material deposited on the inner wall of the conduit (P) identified from the image transmitted in real time.

In addition, the operator may determine whether or not to repeatedly wash the pipe P by checking the internal state of the pipe P through the second imaging device 350a after washing the pipe P.

The second imaging device 350a is connected to the compressed air injection hose H connected to the rear of the second body 230a or to the rear of the second body 230a, and after washing in real time, the inside of the pipe P Take a picture of the state. Since the operator can check the internal state of the conduit P from the image captured and transmitted by the second imaging device 350a, it is possible to determine whether it is necessary to repeatedly wash the conduit P.

In addition, the operator can wash the compressed air according to the length of the compressed air injection hose (H) according to the winding and unwinding operation of the compressed air injection hose (H) through the display provided on the winch (400a) according to the input length of the pipe (P). The driving distance and driving speed of the pig 200a may be checked. Therefore, if the pipe for cleaning the pig (200a) is stopped inside the pipe (P), since the position of the cleaning pig (200a) for the pipe can be grasped, a quick action can be taken.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations are included in the claims of the present invention.

100, 100a: Pipe cleaning device 200, 200a: Pipe cleaning pig
210, 210a: first body portion 211, 211a: concave groove
213, 213a: second through hole 230, 230a: second body portion
231, 231a: first through hole 250, 250a: connection frame
254, 254a: protrusion 257, 257a: injection hole
270, 270a: brush 290a: air inlet
300, 300a: first imaging device 350a: second imaging device
400a: winch

Claims (13)

a first body portion formed in a cylindrical shape and formed in a hemispherical shape with a convex front and a concave groove formed at the rear, the outer wall of which is in close contact with the inner wall of the conduit;
a second body portion disposed to be spaced apart from the rear of the first body portion and formed in a cylindrical shape and having a first through hole penetrated therein in the longitudinal direction, the outer wall of which is in close contact with the inner wall of the conduit; and
One end inserted into the concave groove and coupled to the first body portion, the other end inserted into the first through-hole and coupled to the second body portion, and one end and the other end interconnected in a circumferential direction A pipe cleaning pig including a connecting frame having a central portion having a plurality of injection holes formed therein, and forming a flow path through which the fluid introduced through the first through-hole flows into the concave groove. According to claim 1,
The central portion of the connection frame is a pipe for washing a pig made of a flexible hose (flexible hose). 3. The method of claim 2,
One end and the other end of the connection frame are made of steel or synthetic resin having durability to maintain a shape against the pressure of the fluid introduced through the first through hole for cleaning a pipe. According to claim 1,
The connection frame is
A pipe cleaning pig further comprising a plurality of protrusions formed to protrude from the outer wall of the other end in the direction of the inner wall of the conduit and provided with a plurality of spaced apart from each other in the longitudinal direction to be coupled to the second body. According to claim 1,
Between the center of the connection frame and the inner wall of the conduit, a washing space is formed in which the inner wall of the conduit is washed by the high-pressure fluid injected from the injection hole,
The pipe cleaning pig further comprising a brush provided on the outer wall of the center of the connection frame and disposed in the washing space to remove foreign substances deposited on the inner wall of the pipe. 6. The method of claim 5,
The first body portion further includes a plurality of second through-holes communicating with the washing space and penetrating therein along the longitudinal direction,
A plurality of the second through-holes are disposed to be spaced apart from each other in a circumferential direction for cleaning a pipe. According to claim 1,
A compressed air injection hose for supplying compressed air to the first through-hole is connected in communication with each other, and the second body part further includes an air inlet that is coupled to the rear and covers one side of the first through-hole. According to claim 1,
The first body portion and the second body portion are a polysiloxane represented by the following formula (1), a polycarbonate-based resin represented by the following formula (2), and an aramid-based resin represented by the following formula (3) Pig for pipe washing.
[Formula 1]

each R ₁ is independently a C _1-6 alkyl or phenyl group;
R ₂ is hydrogen or C _1-6 alkyl;
R ₃ is C _1-10 alkyl or oxygen;
p and q are integers from 0 to 10,
[Formula 2]

R ₄ , R ₅ , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R ₁₁ are the same as or different from each other _{and are each independently hydrogen, halogen, C 1-6} alkyl or phenyl, wherein R ₄ , at least 3 of _{R 5} , R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ and R _{11 are halogen;}
R ₁₂ is cyano, oxiranylmethyl or ethenylmethyl;
Y is dimethylphenyl or trimethylphenyl;
r and s are integers from 0 to 30;
[Formula 3]

in formula 1
R ₁₃ is phenyl or oxydibenzenyl,
R ₁₄ is phenyl or naphthyl,
t is an integer from 1 to 5; 9. The method of claim 8,
5 to 89.9% by weight of the polysiloxane represented by Formula 1, 5 to 89.9% by weight of the polycarbonate-based resin represented by Formula 2, and 5 to 89.9% by weight of the aramid-based resin represented by Formula 3 . According to claim 1,
The surfaces of the first body part and the second body part are each independently uncoated or a non-conjugated polyene represented by the following Chemical Formula 4, a first silane-based resin represented by the following Chemical Formula 5, and a second represented by the following Chemical Formula 6 Pig for pipe cleaning coated with a composition containing a silane-based resin.
[Formula 4]

wherein R _a and R _b are the same as or different from each other and each independently represent hydrogen or C _1-6 alkyl;
n is an integer from 0 to 10,
[Formula 5]

Rf is C _1-10 alkyl,
c is an integer from 3 to 50;
d and E are each independently an integer from 1 to 10,
[Formula 6]

h and j are integers from 1 to 10; 11. The method of claim 10,
The thickness of the coating layer coated on the surface of the first body part and the second body part is each independently 0.5 to 30 µm for cleaning a pipe. Pig for cleaning the pipe according to claim 1; and
and a first imaging device connected to the front of the first body to check the internal state of the conduit before washing. 13. The method of claim 12,
a second imaging device connected to the rear of the second body or a hose for injecting compressed air connected to the rear of the second body to check the internal state of the conduit after washing;
a winch around which the compressed air injection hose is wound; and
The pipe washing apparatus further comprising a display unit provided on the winch to display the driving distance and running speed of the pipe washing pig according to the winding and unwinding operation of the compressed air injection hose.

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