JPH05106214A - Installation method of straightener pipe system at inlet of covered conduit - Google Patents

Abstract

PURPOSE:To enable a pipe to be easily set on a covered conduit in any ready-set situation by setting the pipe to be moved down to be suspended in the grid of a pipe frame brought in contact with a sliding frame fixed to be inserted into the covered conduit. CONSTITUTION:A covered conduit inlet section straightener pipe device is composed of the sliding frame 2 of stainless steel channel construction, the pipe frame of stainless steel angle construction, and a pipe 6. Then, the sliding frame 2 is brought in contact with a vertical wall 1, and is vertically inserted into a covered conduit, and an upper section horizontal-beam is fixed with hole-in anchors 3, and the parting plate 5 of the pipe frame is set to be brought in contact with the support of the frame 2. After that, in the grid 7 of the pipe frame, the pipe 6 of a different length is suspended to be moved down to be set on a lower section pipe bearing 8 in a free state. As a result, even on a ready-set covered conduit without a work space, and even in the flow of warm drain the device can be easily set, and a counterplan for extinguishing bubbles can be set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a flow straightening pipe device installed at an inlet of an underdrain for defoaming hot waste water.

[0002]

2. Description of the Related Art Bubbles may be generated at the outlet of a power plant that discharges warm wastewater, and problems such as pollution of fishing nets due to the adhesion of bubbles, salt damage due to scattering of bubbles, and effects on the landscape are considered problems. ing. There are various methods to eliminate the generated bubbles, but one of them is to install a rectifying pipe device at the inlet of the underdrain which is a water outlet.

In this straightening pipe device, in order to reduce the contact between the water flow and the air at the place where the water flow falls and jumps, a large number of pipes are connected between the upper and lower parts of the water drop portion, so that the water flow is on the downstream side. This is a method of suppressing the intake of air caused by collision with.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The discharge culvert of hot wastewater from an existing power plant is not considered in the installation of a defoaming device, and it will be great if the installation of the defoaming device is obligatory. It is necessary to reconstruct the underdrain. In addition, the defoaming device inserts a pipe in order to cut off contact with the air in the water flow falling part of the underdrain which is a foaming part,
The effect is halved if the pipe is not inserted into the entire area of the falling part of the underdrain. On the other hand, this means that there is no space for fixing and installing the device in the underdrain. In addition, there are several devices that emit warm wastewater in the power plant, and the discharge is constant throughout the year, without stopping.

The present invention enables installation of the straightening pipe device in such a situation.

[0006]

[Means for Solving the Problems] An underdrain inlet rectifying pipe device is composed of a sliding frame, a pipe frame, and three parts of a pipe, and four pillars and a reinforcing member are assembled with bolts using a stainless channel. The sliding frame of the structure is installed along with the pillars on the vertical wall of the underdrain, and the upper cross beam is fixed to the underdrain using the hole-in anchor.

Next, a pipe frame having a structure in which a plurality of frame members are arranged in a grid pattern on four stainless angled posts and a partition plate is assembled with bolts on the back surface of the side that abuts the sliding frame is provided. Vertically hang it from the top and drop it into the underdrain, and install it in a free state where the partition plate is in contact with the sliding frame. Finally, a special tool (a tool in which the claw at the tip attached to the pipe opens and closes and the claw supports the lower edge of the pipe when the stem in a narrow pipe is moved up and down) inside the lattice-like frame of the pipe frame.
Use to insert the pipe into the entire grid in a free state.

[0008]

Since the sliding frame is composed only of the support columns of four channels and the reinforcing material, it hardly receives the resistance of the water flow even when it is inserted into the underdrain. In addition, it is inserted along the wall of the underdrain facing the water flow, and the upper part is fixed with a hole-in anchor and installed in a stable state.

The pipe frame is in contact with the sliding frame via a partition plate and is inserted into the vertical underdrain in a state of facing the water flow, so that the pipe frame is pushed by the water flow and supported by the sliding frame on its rear surface. Since it is in a state, it is stable even if it does not have a fixing part to the underdrain. Then, by inserting the pipe into the lattice frame, a vertical load is generated and the position of the center of gravity is lowered and further stabilized. The pipe can be easily inserted and removed with a special tool.

[0010]

Embodiments of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. 1 is a side view of the straightening pipe device at the inlet of the underdrain. FIG. 2 is a plan view thereof. In FIG. 1, a sliding frame 2 having a stainless channel structure is vertically inserted into a vertical wall 1 of the underdrain with the pillars attached to the wall 1, and is installed with the upper cross beam fixed by a hole-in anchor 3. ing.

Next, a partition plate 5 is provided on the side of the sliding frame 2 of the pipe frame 4 having the stainless angle structure.
Are attached by bolts and are in contact with the columns of the sliding frame 2. Then, on the pipe frame 4, pipes 6 having different lengths were suspended by a special tool shown in FIG. 3, guided into the lattice 7 of the pipe frame 4, and provided at the lower part of the pipe frame 4. It is placed freely on the pipe bridge 8. FIG. 3 is a sectional view of the special tool.

At the tip of the thin tube 12, there is a lever 13 with a claw.
Book attached. A stem 14 is passed through the thin tube 12, and a link lever 15 linked to a claw lever is attached to the tip of the stem 14. When the special tool 11 is penetrated through the pipe 6 of the straightening pipe device to be installed and the stem 14 is moved up and down, the claw lever 13 is opened and closed.

[0013]

EFFECTS OF THE INVENTION According to the installation method of the underdrain inlet straightening pipe device according to the present invention, it is possible to easily install the device even in an existing underdrain without an installation work space, and it is discharged continuously throughout the year. It can be installed even in the flow of warm wastewater. Therefore, it is possible to take measures against defoaming even in a culvert with any existing circumstances.

[Brief description of drawings]

FIG. 1 is a side view of an underdrain inlet section rectifying pipe device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a schematic view of a special tool used in the present invention.

[Explanation of symbols]

 1 Vertical Wall 2 Sliding Frame 3 Hole-in Anchor 4 Pipe Frame 5 Partition Plate 6 Pipe 7 Frame

Claims (1)

[Claims] 1. An underdrain inlet rectifying pipe device having a defoaming action, which comprises a sliding frame, a pipe frame and three parts of a pipe, and four columns and a reinforcing member using stainless channels. Install the sliding frame of the structure assembled with bolts along the pillar to the vertical wall of the underdrain, fix the upper horizontal beam to the underdrain, and then install the frame metal in grid form on the four stainless angled pillars. In addition to arranging steps, a pipe frame with a partition plate assembled on the back side that contacts the sliding frame with bolts is hung from the upper part with the pillars in the vertical direction and suspended in the underdrain, and the partition plate is applied to the sliding frame. Finally, the pipes are inserted into the lattice-like frame of the pipe frame in a free state in all the lattices. Ip equipment installation method.