TWI567319B - A pipeline non-stop transmission device and the application method thereof - Google Patents

Description

Pipeline non-stop blocking device and its application method

The invention relates to a pipeline blocking device, in particular to a pipeline non-stopping blocking device and a method for applying the same.

Referring to FIG. 1 , it is a flow chart of a conventional plug blocker, which comprises the steps of: installing a mold, installing a splint valve, opening a hole, plug blocking, cutting and replacing a pipe fitting, sealing a pipe, and installing a blind plate.

Referring to FIG. 2, a cross-sectional view of an embodiment of a conventional pipe non-stop pipe replacement operation is provided. After a certain distance is taken from both ends of the pipe to be repaired 95, the mold 10 is installed, and a splint valve 20 is disposed above the opening 13 of the mold 10.

Referring to FIG. 3, a cross-sectional view of an embodiment of a conventional pipe non-stop pipe replacement operation is performed. A pipe opening machine 60 is installed on the plywood valve 20 to open a pipe 90, and the cut pipe piece 91 is opened. The knife 61 is taken out, then the splint valve 20 is closed, and the pipe opening machine 60 is removed.

Referring to Figure 4, which is a cross-sectional view of a conventional plug blocker embodiment, a plug blocker 99 is mounted on the splint valve 20 and the tube 90 is blocked.

Referring to FIG. 5, a cross-sectional view of a conventional pipe non-stop pipe replacement operation is provided, and a bypass pipe 40 connecting the two plug-type blockers 99 is mounted on the bypass port 33 of the plug blocker 99. However, there is no flow of the fluid 93 due to the blocking relationship in the pipe fitting 94 to be replaced, so that the pipe fitting The fluid 93 in the 90 is transported by the plug blocker 99 through the bypass pipe 40 to the plug stopper 99 at the other end and flows into the pipe member 90 at the other end. At this time, the pipe member 94 to be replaced can be cut. And the action of replacing; after the operation of cutting and replacing the pipe member is completed, the plug blocker 99 stops the blocking action and leaves the pipe member 90. At this time, the conveying path of the fluid 93 is returned to the pipe member 90 for continuous conveying. The bypass pipe 40, the plug blocker 99, and the splint valve 20 are then removed.

Referring to FIG. 6, a cross-sectional view of a conventional pipe non-stop pipe replacement operation is performed. The new pipe segment 92 is attached to the pipe member 90, and after the sealing operation is completed, the die 10 is retained on the pipe member and opened at the opening. The blind plate 70 is installed above the 13 to complete the pipe replacement operation.

The above is a brief description of the general flow of the plug-in blocker for the non-stop operation of the pipeline. It can be seen from the figure that the conventional plug-type blocker can only block by one side due to the structural relationship. After the effect is used for many times, the blocking effect is not good, which may cause fluid leakage in the pipe fittings. In addition to affecting the construction quality, it is more likely to increase the danger of construction.

Therefore, in order to solve the above problems, the inventors have specifically replaced the original plug-type blocker with a cartridge blocker in the conventional pipe non-stopping device operation method.

The utility model relates to a pipeline non-stop blocking device, which is suitable for being applied at both ends of a pipe member to be replaced, and the pipe non-stopping blocking device comprises: a mold mounted on the pipe member, and one of the molds is provided as An opening communicating with the tube; a splint valve mounted on the opening, the splint valve can be adjusted to open or close the opening; a barrel blocker is mounted on the splint valve The cartridge blocker has a casing, a casing is disposed in the casing, and a gas port is disposed on the sidewall of the casing, and a transmission shaft is disposed in the middle of the casing, the transmission shaft has a first axial end and a first a two-axis end, the first shaft end is connected to an external blocking switch, and the blocking switch is controllable The drive shaft is configured to perform a lifting operation; an expansion tube is disposed in the chamber, the expansion tube has a center screw connected to the second shaft end, and a cylinder, and the center screw and the barrel are connected An expansion wedge capable of expanding and contracting, the expansion tube can vertically pass through the opening and enter the pipe member, and is closely adhered to the pipe member by the expansion wedge action; a balance pressure device is installed in the to be replaced Between the tubular member and the mold position, the balance pressure device is coupled to the gas port to balance the pressure between the tubular member and the cartridge blocker.

Wherein, the bypass block is further provided with a bypass port, and when the pipe does not stop the blocking operation, two sets of the barrel blocker are used, and the bypass port is connected with a bypass pipe, the bypass pipe The bypass port of the two-barrel blocker is connected, so that the bypass ports of the two-cylinder blocker can be electrically connected to each other.

Wherein, the mold is an upper and lower cross-section four-way pipe member, and the inner wall of the upper and lower cross-section four-way pipe member is the same as the outer diameter of the pipe member.

Wherein, the cylinder of the expansion cylinder has a surface cylinder wall, and the cylinder wall is preferably made of rubber.

Wherein, the balance pressure device is a pressure relief valve group, and the pressure relief valve group has a long tube, and the long tube is connected to the air port.

A pipeline non-stop blocking device application method comprises the following steps: installing a mold: two molds containing upper and lower split type four-way pipe fittings are to be pressure-welded to both sides of a pipe to be replaced; and a splint valve is installed: The two plywood valves are respectively attached to the two molds, and the purpose is to open or block the opening on the mold; the balance pressure device is installed: the balance pressure device is disposed on both sides of the pipe or valve to be replaced and the two molds Opening; opening: the pipe opening machine opens a cylindrical sealing hole on the pipe; blocking: installing the two-barrel blocker on the clamping valve and installing on the bypass port of the two-tube blocker a bypass pipe, and then connect the long pipe of the balance pressure device to the barrel resistance To balance the pressure in the pipe, to open the opening with the splint valve and operate the blocking controller to insert the expansion tube of the barrel blocker into the barrel sealing hole and perform expansion expansion blocking operation to block After that, the fluid in the pipe is discharged by the balance pressure device; the pipe fitting is cut and replaced: the pipe segment to be replaced is cut, and the new pipe segment is replaced, and then the bypass pipe and the barrel blocker are removed; the pipe plugging: the following plugging device Seal the pipeline and disassemble the splint valve and balance the pressure device; install the blind plate: put the blind plate to seal the opening and complete the pipe replacement.

The effect of the invention is that the cartridge blocker is substituted for the plug blocker to increase its blocking effect.

10‧‧‧Mold

11‧‧‧Upper split tee fittings

12‧‧‧ Lower section tee fittings

13‧‧‧ openings

101‧‧‧ inner wall

20‧‧‧Plywood valve

30‧‧‧Cannula blocker

31‧‧‧Shell

32‧‧ ‧ room

33‧‧‧ bypass

34‧‧‧ mouth

35‧‧‧ drive shaft

351‧‧‧First shaft end

352‧‧‧second shaft end

36‧‧‧Break switch

37‧‧‧Expansion tube

371‧‧‧

372‧‧‧

373‧‧‧Center screw

374‧‧‧Expansion wedge

40‧‧‧bypass

50‧‧‧Relief valve group

51‧‧‧Long tube

60‧‧‧pipe opening machine

61‧‧‧ hole cutter

70‧‧‧Blind board

90‧‧‧ Pipe fittings

901‧‧‧ outside diameter

91‧‧‧ pipe fittings

92‧‧‧New pipe section

93‧‧‧ Fluid

94‧‧‧Replacement fittings

99‧‧‧ Plug Blocker

Figure 1 shows a flow chart of a conventional plug blocker.

Fig. 2 is a cross-sectional view showing an embodiment of a conventional pipe non-stop pipe replacement operation.

Fig. 3 is a cross-sectional view showing an embodiment of a conventional pipe non-stop pipe replacement operation.

Figure 4 is a cross-sectional view of a conventional plug blocker embodiment.

Fig. 5 is a cross-sectional view showing an embodiment of a conventional pipe non-stop pipe replacement operation.

Fig. 6 is a cross-sectional view showing an embodiment of a conventional pipe non-stop pipe replacement operation.

Figure 7 Flow chart of the cartridge blocker.

Fig. 8 is a cross-sectional view showing an embodiment of the replacement operation of the pipe non-stop pipe.

Figure 9 is a cross-sectional view of an embodiment of the inventive cartridge blocker.

Figure 10 is a cross-sectional view of an embodiment of the inventive cartridge blocker.

Figure 11 is a cross-sectional view of the collapsed state of the expansion cylinder.

Figure 12 is a cross-sectional view of the expansion tube expansion state.

Referring to Figure 7, the flow chart of the cartridge blocker is the steps of installing the mold, installing the splint valve, installing the balance pressure device, opening the hole, barrel blocking, cutting and replacing the pipe fitting, and sealing the pipe. Install the blind plate.

Referring to FIG. 8 , a cross-sectional view of an embodiment of a non-stop pipe replacement device of the present invention is provided. The present embodiment replaces the balance pressure device with a pressure relief valve group, and the installation procedure is the same as the conventional use of the plug blocker. The difference is that in the present invention, the plug blocker 99 is replaced by a cartridge blocker 30, and the blocking method is to first install a drain on the tube member 90 between the splint valve 20 and the tube member 94 to be replaced. The valve block 50 is placed, and the cartridge blocker 30 is placed on the splint valve 20. The housing 31 of the cartridge blocker has a gas port 34 and a long tube 51 on the pressure relief valve block 50. Connecting and opening the splint valve 20, the pressure relief valve block 50 will be connected to open and balance the pressure in the cartridge blocker 30. There is a chamber 32 in the cartridge blocker 30, in the chamber 32. A transmission shaft 35 is disposed in the middle, and the first shaft end 351 of the transmission shaft 35 is connected to an external blocking switch 36. The second shaft end 352 of the transmission shaft 35 is connected to the expansion cylinder 37, and the cylinder wall 371 of the expansion cylinder 37 can be The contraction and the expansion are changed in two states, and then the expansion cylinder 37 is placed in the tubular member 90, and the blocking switch 36 controls the expansion cylinder 37 to expand in the tubular member 90. The pipe fitting 90 is blocked, and the steps after the blocking are the same as the conventional cutting and replacing of the pipe fittings, and finally the pipe replacement is completed.

The mold 10 used is a combination of the upper cross-section four-way pipe member 11 and the lower cross-sectional four-way pipe member 12, and the inner wall 101 of the upper and lower cross-sectional four-way pipe members is the same as the outer diameter 901 of the pipe member 90.

A bypass port 33 is further disposed on the casing 31 of the cartridge blocker 30, and the bypass ports 33 provided on the both ends of the cartridge blocker 30 are connected to each other by a bypass pipe 40.

Referring to Figure 9, a cross-sectional view of an embodiment of the cartridge blocker, when the barrel is blocked When the breaker 30 is to be placed into the tubular member 90, the expansion cylinder 37 is in a contracted state and can be correspondingly inserted into the tubular member 90 to stop descending when it reaches the correct position.

Referring to Figure 10, a cross-sectional view of an embodiment of the cartridge blocker, after the expansion cylinder 37 reaches the correct position, the expansion switch 37 is externally controlled to connect the expansion cylinder 37 to transform the expansion cylinder 37 from a contracted state to an expanded state. State, and complete the action of blocking the tube 90.

Referring to FIG. 11, the expansion tube 37 is attached to the second shaft end 352 of the transmission shaft 35. The second shaft end 352 is connected to the center screw 373, and the center screw can drive the expansion wedge 374. At this time, the cylindrical wall 371 is in a contracted state, and the cylindrical wall 372 is made of rubber.

Referring to Fig. 12, in the expanded state of the expansion cylinder, the expansion cylinder 37 is controlled by a blocking switch 36 connected to the first shaft end 351 of the transmission shaft 35. When inflated, the blocking switch 36 is rotated, and the transmission shaft 35 is made. The center screw 373 drives the expansion wedge 374 to retract, and causes the cylinder wall 371 to expand outward, and the cylinder wall 372 is made of rubber.

10‧‧‧Mold

11‧‧‧Upper split tee fittings

12‧‧‧ Lower section tee fittings

13‧‧‧ openings

101‧‧‧ inner wall

20‧‧‧Plywood valve

30‧‧‧Cannula blocker

31‧‧‧Shell

32‧‧ ‧ room

33‧‧‧ bypass

34‧‧‧ mouth

35‧‧‧ drive shaft

351‧‧‧First shaft end

352‧‧‧second shaft end

36‧‧‧Break switch

37‧‧‧Expansion tube

371‧‧‧

40‧‧‧bypass

50‧‧‧Relief valve group

51‧‧‧Long tube

90‧‧‧ Pipe fittings

901‧‧‧ outside diameter

Claims (6)

The utility model relates to a pipeline non-stop blocking device, which is suitable for being applied at both ends of a pipe member to be replaced, and the pipe non-stopping blocking device comprises: a mold mounted on the pipe member, and one of the molds is provided as An opening communicating with the tube; a splint valve mounted on the opening, the splint valve can be adjusted to open or close the opening; a barrel blocker is mounted on the splint valve The cartridge blocker has a casing, a casing is disposed in the casing, and a gas port is disposed on the sidewall of the casing, and a transmission shaft is disposed in the middle of the casing, the transmission shaft has a first axial end and a first a two-axis end, the first shaft end is connected to an external blocking switch, the blocking switch can control the driving shaft to perform a lifting operation; an expansion tube is disposed in the housing, the expansion tube has a a central screw connected to the second shaft end, and a cylinder connected to the central screw and the cylinder is an expansion wedge capable of expanding and contracting, the expansion cylinder can vertically pass through the opening and enter the tubular member, and Using the expansion wedge action to closely adhere to the pipe member; Pressure means mounted to the equilibrium between the pressure means and the mold position of the next tube to be replaced and connected to the gas inlet tube to equalize the pressure between the block and the cartridge device. The pipeline non-stop blocking device according to claim 1, wherein a bypass port is further disposed on the barrel blocker, and two sets of the tube are used when the pipeline does not stop the blocking operation. When the blocker is connected, the bypass port is connected to a bypass pipe, and the bypass pipe is connected to the bypass port of the two-cylinder blocker so that the bypass ports of the two-cylinder blocker can be electrically connected to each other. The pipe non-stop blocking device according to claim 1, wherein the mold is an upper and lower cross-section four-way pipe member, and the inner wall of the upper and lower cross-section four-way pipe member and the pipe member are The outer diameter is the same. The pipe non-stopping blocking device according to claim 1, wherein the cylinder of the expansion cylinder has a surface cylinder wall, and the cylinder wall is preferably made of rubber. The pipeline non-stop blocking device according to claim 1, wherein the balance pressure device is a pressure relief valve group, the pressure relief valve group has a long tube, and the long tube is connected to the air port. . A method for applying a non-stop pipe blocking device according to claim 1, comprising the steps of: installing a mold: welding two molds of the four-way pipe member with upper and lower split portions to be pressed Replace the pipe sections on both sides; install the plywood valve: attach the two plywood valves respectively above the two molds, and aim to open or block the opening on the mold; install the balance pressure device: balance the pressure device It is set between the pipe or valve to be replaced and the mold; the opening: the pipe opening machine opens a cylindrical sealing hole on the pipe; the blocking: the two-barrel blocker is mounted on the clamping valve, and in the two cylinders Install a bypass pipe on the bypass port of the blocker, and then connect the balance pressure device to the port of the barrel blocker to balance the pressure inside the pipe, open the opening with the pinch valve and operate the block controller to block the block The expansion tube of the breaker is placed in the tubular sealing hole and the expansion tube is blocked by the expansion tube. After the blockage, the fluid in the tube is discharged by the balance pressure device; the pipe fitting is cut and replaced: the pipe segment to be replaced is cut, and the new pipe segment is cut. Put on, then Demolition Discharge bypass pipe and barrel blocker; pipeline plugging: The following plugging device will block the pipeline and disassemble the splint valve and balance pressure device. Install the blind plate: Put the blind plate to close the opening and complete the pipe replacement.