JP3565460B2 - How to remove water from the gas pipe - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water removing method for discharging water collected in a gas pipe.
[0002]
[Prior art]
Conventionally, when water has entered the gas pipe and gas supply failure has occurred, a bypass path has conventionally been installed between the upstream and downstream of the water accumulation point as shown in FIG. 7 until the entry point is identified and repaired. After that, the pipe was cut, a special water collector using a tee or the like was installed, drained, and water repair work was performed.
[0003]
[Problems to be solved by the invention]
In such a method, the pipe line needs to be cut twice for installation and removal of the water collector, and therefore a. Requires extensive drilling, b. Need to install a bypass, c. Disconnection and connection work are required. D. This involves large-scale construction, such as the need for PR to consumers because of the temporary shutoff of gas.
Therefore, an object of the present invention is to solve such problems of the conventional method.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the present invention, a joint member having a branch port is attached vertically above and outside a water pool portion of a gas pipe, and a water tank is provided at a branch port of the lower joint member. After drilling the upper wall and lower wall of the pipe by drilling from the branch of the upper joint member, remove the drill by the no-blow method and attach a plug to the branch of the upper joint member. After the water in the pipe is drained into the water tank from the branch port of the lower joint member and the water filling repair work is completed, the upper plug is removed by the no-blow method and the perforated portion stopper is inserted into the lower perforated portion. In this paper, we propose a method of removing water in the gas pipe by removing the water tank and attaching the plug to the branch port, then removing the perforated part stopper by the no-blow method and attaching the plug to the upper branch port.
[0005]
In such a method, the use of the no-blow method widely used for taking out supply pipes eliminates the need for temporary cutoff of gas supply, installation of bypass paths, disconnection and connection of pipes, etc. Becomes simple.
[0006]
Note that a clamp or a split sleeve can be applied to the joint member of the above method as long as it has a branch port.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS.
Reference numeral 1 denotes a clamp having a branch port 2. As shown in FIG. 1, a pair of the clamps 1 is firstly sandwiched between the outsides of the water collecting points a of the gas pipe 3 and connected by bolt nuts 4 or the like to be vertically attached. . The upper clamp is denoted by 1a, and the lower clamp is denoted by 1b. Note that a split sleeve can be used instead of the clamp 1.
[0008]
Next, as shown in FIG. 2, a hose, an iron pipe, or the like 6 reaching the water tank 5 is connected to the branch port 2b of the lower clamp 1b.
[0009]
Next, as shown in FIG. 3, the upper wall and the lower wall of the gas pipe 3 are pierced by the drill 7 from the branch port 2a of the upper clamp 1a.
[0010]
Next, the drill 7 is removed with the no-blow back 8 attached to the branch port 2a by applying the no-blow method, and a plug 9a is attached to the branch port 2a.
[0011]
In the above state, the water stored in the gas pipe 3 is discharged from the lower branch port 2b to the water tank 5 via the hose 6.
[0012]
When the drainage of water in the gas pipe 3 and the repair of the water supply location are completed in this way, the upper plug 9a is removed using the no blow back 8, and the perforated portion stopper 11 is attached to the perforated portion 10b on the lower side wall. insert. The water tank 5 is removed and the plug 9b is attached to the branch port 2b while the lower perforated portion 10b is kept airtight in this manner.
[0013]
Next, in this state, the perforated portion stopper 11 is removed using the no-blow bag 8, and the plug 9a is attached to the upper branch port 2a again to complete the construction.
[0014]
The no-blow method, such as the use of the no-blow bag 8 described above, is a well-known technique widely used in branching a supply pipe and the like, and a detailed description thereof will be omitted.
[0015]
As described above, in the present invention, by using a pair of joint members and the no-blow method, water accumulated in the gas pipe 3 can be discharged by no-blow, and the above-described large-scale construction as in the related art can be performed. Not required. In addition, even if perforated portions 10a and 10b are formed in the upper and lower walls, the portion of the gas pipe from which water is discharged is held by the clamps 1a and 1b having the branch ports 2a and 2b, so that it is not supported by a normal clamp. Can also have a large strength.
[0016]
【The invention's effect】
As described above, the present invention employs the no-blow method widely used for supply pipe removal work and the like, so that the gas supply can be temporarily stopped, a bypass can be installed, and the pipe can be cut and connected without performing work such as disconnection. The accumulated water in the pipe can be discharged, which has the effect of simplifying the construction and eliminating the need for PR to consumers.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a process of a water removing operation according to the method of the present invention.
FIG. 2 is an explanatory view showing a step following the step in FIG. 1 of the water removing operation according to the method of the present invention.
FIG. 3 is an explanatory view showing a step following the step in FIG. 2 of the water removing operation according to the method of the present invention.
FIG. 4 is an explanatory view showing a step following the step in FIG. 3 of the water removing operation according to the method of the present invention.
FIG. 5 is an explanatory view showing a step subsequent to the step in FIG. 4 of the water removing operation according to the method of the present invention.
FIG. 6 is an explanatory view showing a step following the step in FIG. 5 of the water removing operation according to the method of the present invention.
FIG. 7 is an explanatory view showing a conventional water removal operation.
[Explanation of symbols]
1a, 1b Clamp (joint member)
2a. 2b Branch 3 Gas pipe 4 Bolt and nut 5 Water tank 6 Hose and iron pipe 7 Drill 8 No blow bag 9a, 9b Plug 10a. 10b Perforated part 11 Perforated part stopper

Claims (3)

At the outside of the water pool of the gas pipe, a joint member having a branch port is attached up and down with the pipe interposed, a water tank is connected to the branch port of the lower joint member, and a drill is made from the branch port of the upper joint member. After drilling the upper wall and lower wall of the pipe by using a no blow method, remove the drill and attach a plug to the branch port of the upper joint member, and in this state, water in the gas pipe is discharged from the branch port of the lower joint member. After draining into the water tank and completion of water filling repair work, remove the upper plug by a no-blow method and insert the perforated part stopper into the lower perforated part, then remove the water tank and attach the plug to the branch port in this state Removing the perforated-portion stopper by a no-blow method and attaching a plug to the upper branch port. 2. The method according to claim 1, wherein the joint member is a clamp. 2. The method according to claim 1, wherein the joint member is a split sleeve.

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