JP3849966B2 - Indefinite water installation method for gates - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a continuous water installation method for a gate that enables the gate to be installed without stopping the water flow.
[0002]
[Prior art]
In many cases, a sewer, an upper waterway, an industrial waterway, and the like are provided with gates for opening and closing the waterway for the purpose of controlling the flow rate of water. As an example of the gate, as shown in FIG. 4, a gate 51 composed of a door body 52 and a door stop 53 that serves as a support for sandwiching the door body 52 from the left and right is generally formed and formed on a wall surface. The door body 52 is moved up and down by an opening / closing device (not shown) so as to be opened and closed, and the flow rate is controlled.
[0003]
Conventionally, when a new gate 51 is newly installed on the wall surface, or when an existing gate is aged and replaced with a new gate, the water flow is once blocked and the water is cut off. In this state, the gate was installed in a state where it was installed.
[0004]
[Problems to be solved by the invention]
In this way, conventionally, since the water is once blocked on the upstream side, there is a problem that the facility function is temporarily stopped because the water does not flow downstream during the gate installation work. It was. In particular, since concrete or the like is used for installing the gate, the installation period including the curing time is generally long, and it is a problem that the supply of water stops during this period.
[0005]
The present invention was created in order to solve such a problem, and in installing the gate on the outlet side of the gate chamber, simple work is required, and the gate can be installed with water flowing. The purpose is to provide a continuous water installation method for the gate.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides (1) a step of performing a sealing treatment between the inlet and the outlet in the gate chamber and then communicating with the channel pipe in the gate chamber. ) Draining the water in the gate chamber and installing a water stop plug inside the channel pipe to stop the inside of the channel pipe; (3) a part of the channel pipe attached to the outlet A step of temporarily setting a gate at the outlet or the inlet after being removed from the outlet; (4) after a part of the channel pipe once removed from the outlet is subjected to sealing treatment and attached to the outlet The step of removing the water stop plug from the flow path pipe was performed in that order.
[0007]
Further, the flow channel tube is composed of a telescopic multiple tube.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described with reference to three exemplary embodiments. FIG. 1 is an explanatory side sectional view of the first embodiment, FIG. 2 is an explanatory side sectional view of the second embodiment, and FIG. 3 is an explanatory side sectional view of the third embodiment.
[0009]
The continuous water installation method of the gate according to the present invention includes a step of sealing the inlet and outlet in the gate chamber and then communicating with the channel pipe (hereinafter referred to as the first step), and water in the gate chamber. In addition to draining, a step of installing a water stop plug inside the channel pipe to stop the inside of the channel pipe (hereinafter referred to as the second step), and a part of the channel pipe attached to the outlet After temporarily removing from the outlet, a step of temporarily installing a gate at the outlet or inlet (hereinafter referred to as the third step), a part of the channel pipe once removed from the outlet is subjected to sealing treatment again, and the outlet After the attachment, the step of removing the water stop plug from the flow pipe (hereinafter referred to as the fourth step) is performed in that order.
[0010]
[First Embodiment]
"First step"
Fig.1 (a) shows the state of the gate chamber 1 before performing a 1st process, and is in the state by which the water channel was open | released and the gate chamber 1 was satisfy | filled with water. In the gate chamber 1, an inflow port 2 is formed on the upstream side, and an outflow port 3 communicating with the downstream chamber 41 is formed on the downstream side. In addition, the inflow port 2 in this form is a tube port of the upstream piping 4. First, from this state, an operator wearing underwear or the like causes the inflow port 2 and the outflow port 3 to communicate with each other through the flow channel pipe 5 as shown in FIG. The flow path pipe 5 is composed of a telescopic multiple pipe. In this embodiment, the flow path pipe 5 is a double pipe comprising a water guide pipe 6 attached to the inlet 2 side and a sleeve pipe 7 attached to the outlet 3 side. is there.
[0011]
More specifically, the pipe diameter of the conduit pipe 6 is smaller than the pipe diameter of the upstream pipe 4, the end of the conduit pipe 6 is inserted into the upstream pipe 4, and the outer periphery of the conduit pipe 6 and the upstream pipe 4 Sealing treatment is performed on the gap formed between the inner periphery and the sealing member 8. The sleeve tube 7 is slidably fitted on the outer peripheral side of the water guide tube 6, and the sleeve tube 7 is extended from the water guide tube 6, and the end of the sleeve tube 7 is inserted into the outflow port 3. The sealing member 9 seals the gap formed between the outer periphery of the gas outlet and the inner edge of the outlet 3. When the above steps are completed, the water flows from the upstream pipe 4 to the flow channel pipe 5 to the downstream chamber 41, and the gate chamber 1 is left with the water filled during the operation. In addition, since the gap | interval of the part with which the conduit pipe 6 and the sleeve pipe 7 overlap is very small, the amount of water leakage is also small, but depending on the situation, a sealing process is performed on this gap part. The seal members 8 and 9 include elastic bodies such as synthetic rubber. In this embodiment, the air bag has an annular shape (floating ring shape), and is installed at the site of the inlet 2 and the outlet 3 and then inflated the sealing members 8 and 9 by sealing the water by pumping the air. It has become.
[0012]
"Second step"
Next, as shown in FIG. 1B, a submersible pump 10 is installed in the gate chamber 1 to drain water accumulated in the gate chamber 1 to the outside (for example, the downstream chamber 41 side). Further, for example, as shown in FIG. 1 (c), an operator wearing underwear or the like inserts a water stop plug 11 into the flow channel pipe 5 (the water guide pipe 6 in this embodiment) from the downstream chamber 41 side. The water flow in the flow channel pipe 5 is stopped. Examples of the water stop plug 11 include an elastic body such as synthetic rubber. In this embodiment, as in the case of the sealing members 8 and 9, an airbag type is used, and the water stop plug 11 is inflated by pumping air at a predetermined position in the flow path pipe 5 to close the flow path in the pipe. It is an aspect. The disposition position of the water stop plug 11 may of course be on the sleeve tube 7 side. In that case, as shown in FIG. 1 (d), in order to avoid interference with the water guide tube 6 when the sleeve tube 7 is contracted, What is necessary is just to provide in the edge part (left end in FIG. 1) of the sleeve pipe | tube 7. FIG.
[0013]
The order of the drainage work by the submersible pump 10 and the installation work of the water stop plug 11 is not particularly limited, and it is desirable to perform them simultaneously from the viewpoint of work efficiency. However, if the gate chamber 1 is a relatively large room and the amount of water to be drained is large, the drainage time becomes long. Therefore, if the water stop plug 11 is installed in the initial stage, the drainage time will be reduced for a long time. Water does not flow to the chamber 41 side, and the original purpose of the continuous water installation of the gate is lost. In such a case, the water stop plug 11 may be installed just before the drainage by the submersible pump 10 is completed.
[0014]
"Third step"
When the second step is completed, the seal member 9 is removed, and a part of the flow path pipe 5 attached to the outlet 3, that is, the end of the sleeve pipe 7 is temporarily removed from the outlet 3. This is done by sliding the pipe 7 toward the conduit pipe 6 and contracting it (state shown in FIG. 1 (d)). Thereby, the space around the outlet 3 is opened, and the gate 51 (see FIG. 4) is temporarily installed in the outlet 3 (the state shown in FIG. 1E). If, for example, an aging gate has already been installed at the outlet 3, it is removed when the space around the outlet 3 is opened, and a new gate 51 is temporarily installed. In addition, the gate 51 can be installed on the inlet 2 side, and the door stop 53 (FIG. 4) is conveyed while passing around the channel pipe 5 and temporarily installed in the inlet 2 (FIG. 1 (e)). (Indicated by virtual lines). Note that the temporary provision of the gate in the present invention merely means that the gate 51 is applied to the outlet 3 (or the inlet 2), and no precise positioning or attachment to the wall surface is performed. Therefore, the water cutoff time during this period is extremely short.
[0015]
"4th process"
Once the gate 51 is temporarily installed at the outlet 3, the door body 52 of the gate 51 is positioned at the top, the sleeve tube 7 is stretched again, and the end of the sleeve 51 is inserted into the outlet 3. Then, the water stop plug 11 is removed from the flow path pipe 5 by removing the air from the water stop plug 11. As described above, the water again flows from the upstream pipe 4 to the flow channel pipe 5 to the downstream chamber 41. Thereafter, the operator accurately positions the gate 51 and attaches it to the wall surface in the dry gate chamber 1. Then, the installation work of the electric switch 12 that raises and lowers the door body 52 will be started, and thereby, the uninterrupted water installation of the gate 51 is realized.
[0016]
If it is set as the structure which performs the above 1st processes-the 4th processes in the order, respectively, the continuous water installation construction method of a simple gate will be implement | achieved. In particular, as described above in the second step, even when the drainage time of the water accumulated in the gate chamber 1 by the submersible pump 10 or the like is long, the water is discharged downstream through the channel pipe 5 for the long time. The effect that it can flow to the side is produced. In addition, by constructing the flow path pipe 5 from an expandable and contractible multiple pipe, a simpler and speedy continuous water installation method can be constructed.
[0017]
[Second Embodiment]
In this embodiment, the flow channel pipe 5 is constituted by a plurality of flange pipes connected to each other by bolts. In addition, the arrangement | positioning aspect of the inflow port 2, the outflow port 3, the upstream piping 4, and the structure of the sealing members 8 and 9 and the water stop plug 11 are the same as that of 1st Embodiment, attaches | subjects the same code | symbol, The description is also omitted.
[0018]
"First step"
From the state of FIG. 2 (a), an operator wearing underwater clothing or the like places a plurality of flange pipes, in this embodiment, three flange pipes 15a to 15c in order from the upstream side as shown in FIG. 2 (b). First, one end side of the flange pipe 15a is attached to the inlet 2 via the seal member 8, while one end side of the flange pipe 15c is attached to the outlet 3 via the seal member 9, and the flange pipe 15a and the flange pipe 15c The flange tube 15b is inserted between the flange portions, and the flange portions are fastened and fixed by bolts 16. As a result, the flow path pipe 5 composed of the flange pipes 15a to 15c communicates the inlet 2 and the outlet 3, the water flows from the upstream pipe 4 to the flow path pipe 5 → the downstream chamber 41, and in the gate chamber 1 during operation. The filled water remains as it is.
[0019]
"Second step"
Next, as shown in FIG. 2 (b), the water accumulated in the gate chamber 1 is drained to the outside by the submersible pump 10, and an operator wearing underwater clothing or the like is shown in FIG. 2 (c) from the downstream chamber 41 side. As shown in FIG. 3, the water stop plug 11 is positioned inside the flange pipe 15a, and air is pumped to expand the water so that the water flow in the flow path pipe 5 is stopped.
[0020]
"Third step"
When the second step is completed, the bolt 16 is removed, the flange tube 15b is removed, the seal member 9 is then removed, and the flange tube 15c is removed from the outlet 3 (state shown in FIG. 2D). Thereby, the space around the outlet 3 is opened, and the gate 51 is temporarily installed in the outlet 3 (the state shown in FIG. 2E). Of course, it is also possible to temporarily install it on the inlet 2 side as in the case of the first embodiment.
[0021]
"4th process"
After the gate 51 is temporarily installed at the outlet 3, the door body 52 is positioned on the upper side, and then, one end of the flange pipe 15 c is attached to the outlet 3 again through the seal member 9, and the flange pipe 15 b is fastened by the bolt 16. Fix it. Thereafter, the air of the water stop plug 11 is removed and the water stop plug 11 is removed from the flange pipe 15a. As described above, water again flows from the upstream pipe 4 to the flow channel pipe 5 → the downstream chamber 41, and thereafter, the worker starts the installation work of the gate 51 in the gate chamber 1 in a dry state.
[0022]
[Third Embodiment]
In this embodiment, the flow channel pipe 5 is formed of a flexible pipe material. Also in this embodiment, the arrangement of the inlet 2, the outlet 3, and the upstream pipe 4 and the configurations of the seal members 8 and 9 and the water stop plug 11 are the same as those in the first and second embodiments. A reference numeral is attached, and the description thereof is also omitted.
[0023]
"First step"
From the state shown in FIG. 3 (a), an operator wearing underwater clothing or the like, as shown in FIG. Communicate. The channel tube 5 is a tube made of a synthetic resin material, for example, a tube material having flexibility such as a vinyl tube or a rubber tube, or a tube material having flexibility and a telescopic bellows shape. . By using a flexible tube material, for example, even when the positions of the inlet 2 and the outlet 3 are shifted from each other in the vertical direction, it is possible to cope with them.
[0024]
"Second step"
Next, as shown in FIG. 3B, the water accumulated in the gate chamber 1 is drained to the outside by the submersible pump 10, and the worker wearing the underwater clothing is shown in FIG. 3C from the downstream chamber 41 side. As shown in FIG. 5, the water stop plug 11 is positioned inside the flow channel pipe 5 and air is pumped to expand the water flow in the flow channel pipe 5.
[0025]
"Third step"
When the second step is completed, the seal member 9 is removed and the end of the flow channel pipe 5 is removed from the outlet 3 (state shown in FIG. 3D). When the gate chamber 1 is relatively large, that is, when the distance between the inflow port 2 and the outflow port 3 is large, the length of the flow path pipe 5 becomes long, so that it becomes easy to bend and the detachment from the outflow port 3 is easy. Become. And the gate 51 is temporarily installed in the outflow port 3 (state of FIG.3 (e)). Of course, also in this embodiment, the gate 51 can be temporarily installed on the inlet 2 side.
[0026]
"4th process"
When the gate 51 is temporarily installed at the outlet 3, the door body 52 is positioned at the top, and the end of the flow channel pipe 5 is attached to the outlet 3 again through the seal member 9, and the air of the water stop plug 11 is supplied. The water stop plug 11 is removed from the flow pipe 5 by pulling out. As described above, water again flows from the upstream pipe 4 to the flow channel pipe 5 → the downstream chamber 41, and thereafter, the worker starts the installation work of the gate 51 in the gate chamber 1 in a dry state.
[0027]
As mentioned above, although three embodiment suitable for this invention was described, this invention is not limited to these embodiment, A design change is possible suitably in the range which does not deviate from the meaning.
[0028]
【The invention's effect】
According to the present invention, a continuous water installation method for a gate can be realized with a simple operation. Further, even during drainage work by a submersible pump or the like, water can be allowed to flow downstream via the flow path pipe. Furthermore, a simple and speedy continuous water installation method can be constructed by constructing the flow path tube from a telescopic multiple tube.
[Brief description of the drawings]
FIG. 1 is an explanatory side sectional view of a first embodiment.
FIG. 2 is an explanatory side sectional view of a second embodiment.
FIG. 3 is an explanatory side sectional view of a third embodiment.
FIG. 4 is an explanatory perspective view when a gate is installed on a wall surface.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Gate chamber 2 Inlet 3 Outlet 4 Upstream piping 5 Channel pipe 6 Water guide pipe 7 Sleeve pipe 8, 9 Seal member 10 Submersible pump 11 Water stop plug 12 Opening and closing machine 51 Gate 52 Door body

Claims (2)

In installing the gate in the gate room,
(1) A step of making the inlet and outlet in the gate chamber communicate with each other through a sealing pipe after sealing the water;
(2) draining the water in the gate chamber and installing a water stop plug in the flow path pipe to stop the flow path pipe;
(3) temporarily removing a part of the channel pipe attached to the outlet from the outlet and then temporarily setting a gate at the outlet or the inlet;
(4) A step of removing the water stop plug from the flow channel pipe after sealing a part of the flow channel pipe once removed from the flow outlet and attaching it to the flow outlet.
A continuous water installation method for gates, characterized in that they are performed in that order. 2. The continuous water installation method for a gate according to claim 1, wherein the flow path pipe is formed of a multiple pipe that can be expanded and contracted.

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