KR20080092764A - The mothod using the fluid-crossing gate for pipeline - Google Patents

Abstract

A method for installing or repairing a pipeline using a fluid blocking device is provided to prevent the pipeline from being separated during pipeline installation work or pipeline repair work due to fluid pressure applied thereto by blocking the fluid using the fluid blocking device. A method for installing or repairing a pipeline using a fluid blocking device comprises the steps of installing a valve(110) on a pipeline(100) and perforating a hole in the pipeline, installing a fluid blocking unit(A) by using a coupling unit provided at a lower body(91) of the valve installed on the pipeline, installing a fluid blocking device(70) in the pipeline, blocking the fluid by operating the fluid blocking device, performing pipeline installation work or pipeline repair work while blocking the fluid, and sealing the hole after removing the fluid blocking unit.

Description

The mothod using the fluid-crossing gate for pipeline}

1 is an installation state of the fluid circuit breaker for the pipe according to the embodiment of the present invention.

2 is a cross-sectional view of a fluidic circuit breaker for an embodiment of the present invention.

Figure 3 is a detailed view of the blocking device of the fluid circuit breaker for the pipe according to the embodiment of the present invention.

4 is a side cross-sectional view of FIG. 3

Figure 5 is a detailed view of the joint portion of the fluidic circuit breaker for piping according to an embodiment of the present invention.

Figure 6 is a detailed view of the head body of the fluid circuit breaker for piping according to an embodiment of the present invention.

Figure 7 is a detailed view of the head cover of the fluid circuit breaker for piping according to an embodiment of the present invention.

8 is a detailed view of the lever of the fluid circuit breaker for the pipe according to the embodiment of the present invention.

9 is a detailed view of the wing of the fluid circuit breaker for piping according to the embodiment of the present invention.

Figure 10a is a state diagram of the fluid circuit breaker operating in accordance with an embodiment of the present invention.

Figure 10b is a state diagram for the fluid circuit breaker operating in accordance with an embodiment of the present invention.

Figure 10c is a state diagram of the fluid circuit breaker operating in accordance with an embodiment of the present invention.

11 is a state in which the safety post is installed in accordance with an embodiment of the present invention.

12 is an exploded perspective view of a safety post according to an embodiment of the present invention.

[Explanation of symbols on the main parts of the drawings]

10: power unit 20: power transmission unit

30: rotating shaft 40: operating shaft

50: working fluid supply pipe 60: joint

70: blocking device 71: cylinder body

72: cylinder shaft 73: cam

74: head body 75: lever

76: cover 77: wings

78: pad 80: roller

90: body 100: piping

110: valve body

A: Fluid breaker B: Safety post

According to the present invention, when relocating or repairing a pipe in which a fluid such as water flows, when a flow of fluid is required such as installing a valve and a branch pipe, a hole is drilled at a desired pipe position, and the pipe is connected through the hole. It relates to a method using a fluid blocker for piping to block the flowing fluid.

The fluid shutoff device for piping is mainly used for maintenance, reinforcement, replacement, and relocation for the maintenance of the fluid pipe, and the fluid in the desired position of the pipe is not blocked by the valve at a certain point of the existing fluid pipe. It is a method that can block the flow of the flow, minimize the blocking period and time, and reduce the damage of other users. In other words, when there are many existing accommodations such as city gas pipes or water supply pipes, when the pipes are moved for new accommodations or when the fluid is blocked for maintenance, such as maintenance of the drainage pipes, many existing accommodations may be inconvenient. Therefore, the pipe can be moved, repaired, and reinforced while continuously supplying fluid, thereby minimizing damage to the receiving place.

The prior art of the fluidic circuit breaker proposed for this purpose is shown in US Patent 4,458,721.

The prior art is mainly applied to a small pipe such as a city gas pipe, and is formed to supply air to an expansion part installed at the front end to block the fluid with the expanded tube, and the expansion part is jointed by the length of the expansion part. It includes a cylinder so as to include or stretchable, the spring is installed to solve the inconvenience of rotation of the joint is installed on the outside of the expansion portion, when inserting the expansion portion in the pipe smoothly inserted by the length of the expansion portion. The disadvantage of not being able to, and the high pressure of the fluid in the pipe, the air pressure supplied to the expansion portion is increased, the fastening of the expansion tube can be dismantled, there is a disadvantage that the expanded tube is damaged by the scale in the pipe.

In addition, when the fluid is blocked by using a fluidic circuit breaker for pipes, a phenomenon occurs in which the pipe is separated by an impact generated by the pressure of the fluid. As such, when the impact pipe generated by the pressure of the fluid is separated, the centers of the pipes to be connected do not coincide with each other, and thus, the connection work is not easy.

According to the present invention, the roller is installed at the end so that the joint can be easily bent, and the operating part can be easily inserted into the pipe by eccentrically installing the eccentric without installing the rotation axis of the joint at the central axis. The purpose of the present invention is to provide a method for relocating pipes using a fluid circuit breaker that can block high pressure fluid by supporting a pad that blocks fluid by widening the wing spreading in one direction and the area of the wing. have.

In addition, it is an object to prevent the pipe from being separated from the impact generated by the pressure of the fluid when the fluid is blocked by using the fluid blocker for the pipe.

The present invention relates to a method of relocating piping using a fluid circuit breaker for piping,

Installing the valve body 110 in the pipe 100 and preparing a hole (S100); An installation step (S200) of installing the fluidic circuit breaker (A) for the pipe by using the fastening part formed in the lower body (91) in the valve body (110) installed in the pipe (100) in the preparation step (S100); A seating step (S300) for seating the blocking device 70 in the pipe 100 after the installation step (S200); A blocking step (S400) of supplying a working fluid after the seating step (S300) to block the fluid by operating the blocking device (70); A working step of moving the pipe in a state in which the fluid is blocked by the blocking step S400; After the working step (S500) is made of a sealing step (S600) to remove the fluid blocker (A) for the pipe and seal the perforated holes.

The fluid circuit breaker (A) and the power unit 10 is installed on the upper side of the cylindrical body (90); An operating shaft 40 configured to move up and down by receiving power from the power unit 10; A joint part 60 installed below the operation shaft 40; A blocking device 70 installed below the joint part 60 to block a fluid in the pipe 100 by the working fluid supplied to the working fluid supply pipe 50; Consists of the roller 80 is installed below the blocking device 70,

The blocking device 70 includes a cylinder portion consisting of a cylinder body 71 and a cylinder shaft 72 operated by a working fluid supplied to the working fluid supply pipe 50; A head body 74 having a plurality of grooves 74a formed at equal intervals in the circumferential direction provided in the cylinder body 71 of the cylinder part; A cam (73) formed in the cylinder shaft (72) inside the head body (74) and having a groove (73a) formed on a circumferential surface moving up and down; A plurality of levers 75 installed on one side of the groove 73a of the cam 73 and the other side of the cam body 73 to rotate in the groove 74a of the head body 74; An actuating part including a head cover 76 which fixes the lever 75 to the head body 74; A plurality of wings 77 are installed on the lever 75 so that the lever 75 is extended or contracted radially by the movement of the lever 75 which is operated by the movement of the cylinder shaft 72 of the operating portion, and at the end of the wing 77 The inclined surface 77a is formed to be in close contact with the inner circumferential surface of the 100, and the side inclined surface 77b is formed at the side so that the plurality of wings 77 may be in close contact with each other so that the plurality of wings 77 block the fluid. It is composed of a blocking portion made to.

The seating step (S300) rotates the rotary shaft 30 using the power transmission device 20 generated by the power unit 10, the operation shaft 40 is lowered by the rotation of the rotary shaft 30. The roller 80 contacts the pipe 100 by the lowering of the working shaft 40, and the joint part 60 is formed by the central axis 61 of the joint part 60 eccentric with the contact roller 80. By rotating, the blocking device 70 is seated on the pipe 100.

The blocking step (S400) is to supply the working fluid to the working fluid pipe 50 to move forward the cylinder shaft 72, the cam 73 is installed, the cam 73 and the movement of the cylinder shaft (72) The lever 75 provided between the head body 74 is operated, the wing 77 installed on the lever 75 is unfolded in a radial manner by the operation of the lever 75, the wing 77 The pad 78 is installed on the wing 77 to block the fluid.

In addition, after the seating step (S300) may further comprise the step of installing a safety post (B) between the pipe 100, the fluid circuit breaker (A) is installed,

The safety post (B) and a plurality of support rods 220 formed to be adjustable in length; The support rod 220 is formed of a coupling member 210 is formed of a plurality of semi-circular band formed with a coupler 211 to be inserted into the coupling member 210 to be inserted.

Hereinafter, with reference to the drawings showing an embodiment of the present invention will be described in detail.

As shown in FIGS. 1 and 2, the fluid circuit breaker A for piping is fastened to the valve body 110 of the pipe 100 by a flanged connection to the upper body 91 and the lower body of the cylindrical shape. The cylindrical body is formed of a lower body 92, the upper portion of the upper body 91 of the cylindrical shape of the power unit 10 for generating power and the power for transmitting the power generated from the power unit 10 The transmission device 20 is installed, the power transmission device 20 is rotatably installed on the inside of the upper body 91 rotatable shaft 30, the rotation shaft 30 to the rotation of the rotation shaft 30 An operating shaft 40 is installed to move up and down inside the upper body 91.

A male screw portion 31 is formed on the rotating shaft 30, and a female screw portion 41 is formed on the working shaft 40, so that the male screw portion 31 of the rotating shaft 30 and the female screw portion of the working shaft 40 are formed. Rotation of the rotary shaft 30 using the 41 allows the operating shaft 40 to be movable.

The lower housing inside the upper body 91 is provided with a guide housing 42 for guiding the operating shaft 40 in order to reduce the flow, such as the simultaneous shaking of the operating shaft 40.

The lower body 92 connected to the upper body 91 is provided with a connecting shaft 45 which is spoken with the working shaft 40 to move in and out of the lower body 92, and the connecting shaft 45 has a lower portion. An end portion 46 having an outer diameter similar to the inner diameter of the body 92 is formed, and the joint portion 60 is formed at the lower side.

The joint part 60 is formed of an upper concave-convex portion 60a having a curved portion 61 formed on one side thereof, and a lower concave-convex portion 60b that is coupled to the upper concave-convex portion 60a to rotate in one direction. The rotating shaft 62 of the portion 60a and the lower uneven portion 60b is formed to be spaced apart from the central axis C by a predetermined distance.

The connecting shaft 45 and the joint part 60 are provided with a supply hole for supplying a working fluid supplied to the working fluid supply pipe 50 to a cylinder to be described later. The supply hole is described below by operating the joint part 60. When the blocking device 70 is placed in the pipe 100, the working fluid is formed to be supplied.

The blocking device 70 is spoken to the lower uneven portion 60b of the joint portion 60, and the blocking device 70 has a cylinder body 71 and a cam 73 at an end portion at which the cylinder body 71 is installed. The formed cylinder shaft 72 and the head body 74 formed at the end of the cylinder body 71 is formed, grooves 74a are formed at equal intervals in the circumferential direction of the head body 74, A lever 75 is radially installed between the groove 74a of the head body 74 and the cam 73 formed at the end of the cylinder shaft 72, and the coupling groove 74b formed in the groove 74a. The shaft 75b formed in the lever 75 is settled so that the lever 75 rotates around the shaft 75b, and a blade 75 is formed in the hole 75a formed in the lever 75. The shaft 77a of 77 is inserted so that the wings 77 are unfolded or retracted by the operation of the lever 75.

An inclined surface 77a is formed on the wing 77 to be in close contact with the inner circumferential surface of the pipe 100, and a side inclined surface 77b is formed on the side to widen the contact area with the pad 78 so that it can be used even at high pressure. do.

The lever 75 in which the groove 74a of the head body 74 is mounted is rotatably installed by the head cover 76 in which the groove 76a is formed to correspond to the groove 74a of the head body 74.

The blades 77 are partially fixed to the blades 77 so that the pads 78 having a disc shape can be unfolded or retracted by the operation of the blades 77.

The pad 78 is made of a material having a predetermined elastic material, and is preferably made of synthetic resin such as rubber.

The blocking device 70 configured as described above moves the cylinder shaft 72 in which the cam 73 is installed to the working fluid supplied to the working fluid supply pipe 50, and moves the cam by the movement of the cylinder shaft 72. The lever 75 provided between the 73 and the head body 74 is operated, and the wings 77 installed on the lever 75 are unfolded in a radial manner by the operation of the lever 75. Unfolding of the blade 77, the pad 78 installed on the blade 77 will block the fluid.

The head cover 76 is provided with a roller 80 so as to protrude from the wing 77 by a predetermined length.

The roller 80 is composed of a second roller 82 in a direction opposite to the first roller 81 installed in the rotational direction of the joint portion 60, the first roller 81 is more than the second roller 82 It is installed to protrude further.

The fluid circuit breaker A configured as described above has an operating state as shown in FIG. 10.

As shown in FIG. 10A, the operating shaft 40 moves downward by the power of the power unit 10, and the blocking device 70 is inserted through a hole formed in the pipe 10, and operated in the state as illustrated in FIG. 10A. When the shaft 40 is further moved downward, the joint unit 60 is bent as shown in FIG. 10B, and the blocking device 70 is placed inside the pipe 100, and the blocking device 70 is connected to the pipe 100 as shown in FIG. 10B. When the working fluid is supplied to the working fluid supply pipe 50 in a state placed therein, the cylinder shaft 72 is moved forward to spread the wings 77, and the blocking device 70 is installed to block the fluid as shown in FIG. 10C.

As shown in FIGS. 11 and 12, the safety post B is installed between two fluid breakers A to prevent separation of the pipe 100 from an impact generated when the fluid is blocked using the fluid breakers A. FIG. To this end, it is largely divided into a support rod 220 made up of a plurality, and the coupling member 210 is installed on both ends of the support rod 220.

The coupling member 210 is formed of a plurality of semi-circular bands to be easily installed in the pipe 100, a plurality of coupling holes 211 is formed in one band to install the support rod 220. . Coupling member 210 made in this way is installed in the pipe 100 by using the fastening material (for example, bolts and nuts).

The support rod 220 is made of a hollow tube 221, a screw formed rod 222, and the adjustment hole 223 is installed on the screw formed on the rod 222 is possible to adjust the length.

Support rod 220 made in this way is installed between the coupling member (210).

The present invention using the fluid circuit breaker (A) for the pipe constructed and operated as described above, the valve body 110 is installed on both sides of the pipe 100 to be relocated or repaired, and the hole is drilled using a milling tool. A preparation step (S100);

An installation step (S200) of installing a fluid circuit breaker (A) for the pipe by using the fastening part formed in the lower body (91) in the valve body (110) installed in the pipe (100) in the preparation step (S100);

After the installation step (S200) and the seating step (S300) for seating the blocking device 70 of the fluid circuit breaker (A) in the pipe 100,

A blocking step (S400) of supplying a working fluid after the seating step (S300) to block the fluid by operating the blocking device (70);

A work step (S500) of performing a work for relocating or repairing or reinforcing the pipe in a state in which the fluid is blocked in the blocking step (S400);

After the working step (S500) to remove the fluid blocker (A) for the pipework and performs the work in a sealing step (S600) for sealing the perforated holes.

After the installation step (S200) of installing the fluid circuit breaker (A) using a fluid circuit breaker (A) to prevent the separation of the pipe from the impact generated when the fluid is blocked, to prevent the safety accident (B) It may further comprise the step of installing.

The safety post (B) is installed between the fluid circuit breakers (A) which are installed at predetermined intervals in order to move or connect the pipe, the fastening member to the two coupling members 210 formed of two semicircular bands. It is installed in the pipe by using, and the support bar 220 is installed in the coupler 211 formed in the coupling member 210. At this time, the support rod 220 is adjusted to the length by using the adjustment hole 223 installed in the rod formed 222.

The preparation step (S100) is equipped with a branch saddle fountain before the pipe 100, connecting the valve body 110 including a shut-off valve before the branch saddle fountain, a perforation apparatus on the upper side of the valve body 110 After mounting the hole in the pipe 100, and made of a process of removing the fabric mill from the valve body (110).

The seating step (S300) rotates the rotary shaft 30 using the power transmission device 20 generated by the power unit 10, the operation shaft 40 is lowered by the rotation of the rotary shaft 30. The roller 80 contacts the pipe 100 by the lowering of the working shaft 40, and the blocking device 70 is seated on the pipe 100 by the contact roller 80 and the joint part 60. will be.

The blocking step (S400) is to supply the working fluid to the working fluid pipe 50 to move forward the cylinder shaft 72, the cam 73 is installed, the cam 73 and the movement of the cylinder shaft (72) The lever 75 provided between the head body 74 is operated, the wing 77 installed on the lever 75 is unfolded in a radial manner by the operation of the lever 75, the wing 77 The pad 78 is installed on the wing 77 to block the fluid.

According to the present invention, since the rotation axis of the joint is spaced apart from the central axis of the fluid circuit breaker, the joint is rotated by the weight of the blocking device, and the roller slides when the blocking device is inserted into the pipe by the roller installed at the tip of the blocking device. It is a method that is applied when relocating, repairing, and reinforcing pipes using a fluid circuit breaker that can be placed without damaging the inside of the pipe by placing the blocking device while moving inside the pipe. It is possible to do work such as relocation, repair, and reinforcement by shutting off without stopping.

In addition, by installing a safety post it is possible to prevent the pipe from being separated by the impact generated by the pressure of the fluid when the fluid is blocked using a fluid blocker.

Claims (6)

In the method using the fluid blocker for piping to be applied when improving the piping facilities, such as relocation, Installing the valve body 110 in the pipe 100 and preparing a hole (S100); An installation step (S200) of installing a fluid circuit breaker (A) for the pipe by using the fastening part formed in the lower body (91) in the valve body (110) installed in the pipe (100) in the preparation step (S100); After the installation step (S200) and the seating step (S300) for seating the blocking device 70 in the pipe 100, A blocking step (S400) of supplying a working fluid after the seating step (S300) to block the fluid by operating the blocking device (70); A work step (S500) of performing a work for relocating or repairing or reinforcing the pipe in a state in which the fluid is blocked in the blocking step (S400); Sealing step (S600) of removing the fluid blocker (A) for the pipe after the working step (S500) and sealing the perforated hole; Method for using a fluid blocker for piping comprising a. The method of claim 1, The fluid circuit breaker (A) and the power unit 10 is installed on the upper side of the cylindrical body (90); An operating shaft 40 configured to move up and down by receiving power from the power unit 10; A joint part 60 installed below the operation shaft 40; A blocking device 70 installed below the joint part 60 to block a fluid in the pipe 100 by the working fluid supplied to the working fluid supply pipe 50; Consists of the roller 80 is installed below the blocking device 70, The blocking device 70 includes a cylinder portion consisting of a cylinder body 71 and a cylinder shaft 72 operated by a working fluid supplied to the working fluid supply pipe 50; A head body 74 having a plurality of grooves 74a formed at equal intervals in the circumferential direction provided in the cylinder body 71 of the cylinder part; A cam (73) formed in the cylinder shaft (72) inside the head body (74) and having a groove (73a) formed on a circumferential surface moving up and down; A plurality of levers 75 installed on one side of the groove 73a of the cam 73 and the other side of the cam body 73 to rotate in the groove 74a of the head body 74; An actuating part including a head cover 76 that fixes the lever 75 to the head body 74; A plurality of wings 77 are installed in the lever 75 so that the lever 75 is extended or contracted radially by the movement of the lever 75 actuated by the movement of the cylinder shaft 72 of the operating part, and at the end of the wing 77 a pipe The inclined surface 77a is formed to be in close contact with the inner circumferential surface of the 100, and the side inclined surface 77b is formed at the side so that the plurality of wings 77 may be in close contact with each other so that the plurality of wings 77 block the fluid. Method for using a fluid circuit breaker, characterized in that consisting of the blocking portion made to. The method of claim 1, The seating step (S300) rotates the rotary shaft 30 using the power transmission device 20 generated by the power unit 10, the operation shaft 40 is lowered by the rotation of the rotary shaft 30. The roller 80 contacts the pipe 100 by the lowering of the working shaft 40, and the blocking device 70 is seated on the pipe 100 by the contact roller 80 and the joint part 60. Pipe end relocation method using a fluid blocker for piping, characterized in that. The method of claim 1, The blocking step (S400) is to supply the working fluid to the working fluid pipe 50 to move forward the cylinder shaft 72, the cam 73 is installed, the cam 73 and the movement of the cylinder shaft (72) The lever 75 provided between the head body 74 is operated, the wing 77 installed on the lever 75 is unfolded in a radial manner by the operation of the lever 75, the wing 77 Method of using a fluid blocker for piping, characterized in that the pad (78) is installed on the wing (77) to block the fluid. The method of claim 1, Method for using a fluid blocker for the pipe, characterized in that further comprising the step of installing the safety post (B) between the pipe 100, the fluid blocker (A) is installed after the seating step (S300). The method of claim 5, The safety post (B) and a plurality of support rods 220 are formed to be adjustable in length; Method for using a fluid blocker for piping, characterized in that consisting of a coupling member 210 is formed of a plurality of semi-circular band formed with a coupler 211 is formed so that the support rod 220 is inserted into the coupling member.

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