KR101672904B1

KR101672904B1 - wash bulkhead in piping

Info

Publication number: KR101672904B1
Application number: KR1020150078199A
Authority: KR
Inventors: 이기은
Original assignee: 주식회사 금화피에스시
Priority date: 2015-06-02
Filing date: 2015-06-02
Publication date: 2016-11-04

Abstract

The present invention relates to a water damper device inside a pipe which can effectively prevent water inflow to a construction site during maintenance or replacement of piping for a power plant, thereby improving the convenience of construction and shortening the construction time.
The water filming device in the piping according to the present invention comprises a pair of opposed arc-shaped partitions facing each other and a plurality of spacing members for fixing the partitions while keeping the interval of the partitions constant, wherein each of the partitions has a plurality And the gap holding member maintains a gap between the partition walls through the gap holding member engagement holes.
In the above-described configuration, the partition has a radius of curvature equal to a radius of curvature of the pipe, and one of the partition is divided into a lower plate and an upper plate to be screwed to each other to form a partition.
A head portion that is positioned on the outside of the gap holding member engagement hole in which each of the gap holding members is disposed, a body portion that is located in a pair of partition inner spaces through the gap holding member engagement hole, And a washer which is protruded to the outside of the gap holding member and which is interposed between the male screw portion and the gap holding member engaging hole and prevents the body from being separated through the gap holding member engaging hole. do.

Description

A wash bulkhead in piping

The present invention relates to a water damper device inside a pipe, and more particularly, to a water damper device for effectively preventing water inflow to a construction site during maintenance or replacement of piping for a power plant, To a water damper device.

As is well known, a thermal power plant is a huge energy conversion mechanism that converts the chemical energy of a fuel into electrical energy. It turns the generator to generate electricity by boiling water. The boiler is a device that turns water into steam. Steam ejected from the nozzle turns the turbine and generates electricity from the generator connected to the turbine.

On the other hand, thermal power plants and nuclear power plants are usually located on the seashore and receive the necessary water for power generation from the sea. In addition to the purpose of supplying water to the power plant, piping for various purposes is installed. For example, And large-scale metal pipelines. In addition, corrosion inhibiting coating agent is usually applied to the inside of the piping contacting the seawater, but if such a coating is damaged due to prolonged use, the piping may be corroded and leakage may occur.

In the case of such leakage, it is necessary to find the area where the corrosion has occurred in the pipe, and to spray the gap with welding or the like, and then apply the coating material for corrosion prevention again. Such work is, of course, .

1 is a schematic vertical cross-sectional view showing the installation state of a piping for a power plant. As shown in FIG. 1, most thermal power plants or nuclear power plants are installed on the beach and use seawater as a source of water. For this purpose, a pipeline 10 for receiving seawater 30 is provided. The pipe 10 communicates with the manhole 20 extending downward from the ground. The operator performs various maintenance work on the pipe 10 while entering the inside of the pipe 10 through the manhole 20 can do.

On the other hand, when the piping 10 is constantly filled with a certain amount of seawater, for example, about 40%, it is necessary to remove water from the piping 10 before repairing or replacing the piping 10. For this purpose, in the past, the soil is placed in a bag and the piping is blocked to a certain extent.

However, according to the method of accumulating soil in the conventional bag sack, it takes a lot of time for the work, and when re-work is performed in case the water film is damaged and the water film is broken, the reworking must be performed. There was a hassle of having to pour a piece of water in the middle of the operation.

Prior Art: 10-1996-7002807 Patent Document 1: Japanese Patent Application Laid-

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a piping system and a piping system which can effectively prevent water inflow to a construction site during repair or replacement of piping for a power plant, And to provide a water filming apparatus of the present invention.

To achieve the above object, the present invention provides a water damper in a piping system including a pair of circular arc-shaped partition walls facing each other, and a plurality of gap retaining members for fixing the partition while keeping the space between the partition walls constant , A plurality of spacing member coupling holes are formed in each partition, and the spacing member maintains the spacing between the partition walls through each of the spacing member coupling holes.

In the above-described configuration, the partition has a radius of curvature equal to a radius of curvature of the pipe, and one of the partition is divided into a lower plate and an upper plate to be screwed to each other to form a partition.

A head portion that is positioned on the outside of the gap holding member engagement hole in which each of the gap holding members is disposed, a body portion that is located in a pair of partition inner spaces through the gap holding member engagement hole, And a washer which is protruded to the outside of the gap holding member and which is interposed between the male screw portion and the gap holding member engaging hole and prevents the body from being separated through the gap holding member engaging hole. do.

According to the water film system in the piping of the present invention, not only the inflow of water to the construction site can be reliably prevented during maintenance or replacement of the piping for the power plant, but also the risk of rework due to the sturdy structure is essentially blocked, Not only the convenience can be improved, but also the construction time can be remarkably shortened.

1 is a sectional view schematically showing a piping installation structure of a general thermal power plant.
FIG. 2A and FIG. 2B are front views showing a bottom plate and an upper plate of the piping internal damming device of the present invention, respectively.
3 is a front view showing a space holding member of the piping inner damming device of the present invention.
Fig. 4 is a view showing the state of the internal water damper of the invention.
5 is a cross-sectional view showing a state in which the internal water dam device of the present invention is installed inside a pipe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a water damper in a piping according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a front view showing a bottom plate and an upper plate of the piping internal damming device of the present invention, and FIG. 3 is a front view of the space holding member of the piping internal damming device of the present invention. 4 is a combined state view of the piping inner damming device of the present invention.

As shown in FIGS. 2 to 4, the water dam device in the piping according to the present invention includes a pair of circular arc-shaped partition members facing each other in an assembled state, and a gap holding member 120 for keeping constant intervals between the partition members .

In the above-described configuration, each partition is formed of an observer (consisting of a current and a arc) having a radius of curvature equal to the radius of curvature of the pipe and having a size approximately on the order of a half or a half of a circle. It may be difficult to introduce it into the piping. Therefore, it is preferable to divide it into the bottom plate 100 and the top plate 110, introduce it into the piping in a manufactured state, and then assemble them with screws or the like to construct a partition.

As a result, the bottom plate 100 is formed of a plate-shaped body having a shape smaller than approximately a half circle (lower shape is arc shape and upper shape is linear), and the upper plate 110 is a plate- &Lt; / RTI >

Reference numerals 104 and 114 denote upper and lower plate coupling holes through which screws for coupling the lower plate 100 and the upper plate 110 are inserted. Through these upper and lower plate coupling holes 104 and 114, The lower plate 100 and the upper plate 110 are screwed together so that each partition can be assembled inside the pipe.

A plurality of, for example, three or more spacing members 120 are interposed between the assembled partition members. The spacing member 120 includes a spacing member coupling hole 102 formed in the partition, A head part 122 positioned at the outside of the partition wall 112, a body part 124 passing through the space holding member coupling holes 102 and 112 and located in a pair of partition inner spaces, 102 and 112 and is interposed between the male screw portion 126 and the gap holding member engaging holes 102 and 112 in which a nut (female screw) 130 is engaged, And a washer 128 for preventing the portion 124 from being released through the gap retaining member engagement holes 102,

4 is a cross-sectional view showing a state in which the internal water dam device of the present invention is installed inside a pipe. As shown in FIG. 4, according to the water filming device in the piping of the present invention, an operator inserts two each of the lower plate 100 and the upper plate 110 into the pipe 10 through the manhole 20 The lower plate 100 and the upper plate 110 are coupled to each other to assemble a pair of partitions, and the pair of partitions are fixed with the interval maintaining member 120 being maintained at intervals. In this state, when the soil 50 is filled in the space between the pair of partition walls, the soil is densely filled along the curved surface of the pipe 10, so that no leakage occurs.

In this state, the water in the construction site is poured over the partition and the water is removed by using the pump, and then a very high coating agent is applied to the gap leaked by the welding work or the like. After the appropriate time has elapsed in this state, Thereby completing the maintenance work.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Accordingly, the scope of the present invention should be determined by the following claims. For example, only one partition, that is, a partition provided to face the sea, may be used as the lower panel 100 and the upper panel 110, and the remaining partition may be a monolithic semi-circular partition.

10: piping, 20: manhole,
30: sea water, 50: soil,
100: lower plate, 102: spacing member coupling hole,
104: upper / lower plate coupling hole, 110: upper plate,
112: spacing member coupling hole, 114: upper / lower plate coupling hole,
120: spacing member, 122: head,
124: body portion, 126: male thread portion,
128: Washer, 130: Nut

Claims

A pair of opposing arc-shaped partitions and
And a plurality of spacing members for fixing the partition with the spacing of the partition being kept constant,
A plurality of spacing member coupling holes are formed in each of the partition walls, the spacing maintaining members maintain the spacing between the partition walls through the respective spacing member coupling holes,
Wherein the partition has a radius of curvature equal to a radius of curvature of the pipe,
One of the partitions is divided into a bottom plate and an upper plate to be screwed to form a partition,
The upper plate is a plate-shaped body having a straight line in which upper and lower portions are parallel to each other and a side portion in an arc shape,
And the soil is filled between the pair of partition walls.

delete

The method according to claim 1,
A head portion that is positioned on the outside of the gap holding member engagement hole in which each of the gap holding members is disposed, a body portion that is located in a pair of partition inner spaces through the gap holding member engagement hole, And a washer which is protruded to the outside of the gap holding member and which is interposed between the male screw portion and the gap holding member engaging hole and prevents the body from being separated through the gap holding member engaging hole. The water damper inside the piping.