JP3761254B2 - Floating frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floating frame used to float and sink a hanging curtain which is mainly used for water pollution prevention and the like while hanging in water.
[0002]
[Prior art]
As an example of a conventional frame body, a frame body for hanging a hanging curtain for underwater pollution prevention will be described with reference to FIG. The frame body 21 is formed in a rectangular planar shape as a whole. In the configuration, a plurality of hollow elongated bodies 22 are sequentially connected in the longitudinal direction, and the whole is configured as an endless annular body. A curtain rail 23 is attached to the lower part of the frame body 21, and a pollution shielding curtain 24 is suspended along the frame body 21 along the entire length of the curtain rail 23. A weight chain 25 is attached to the skirt of the curtain 24 and serves to pull the curtain 24 downward. Reference numeral 26 denotes an anchor rope, each end of which is tied to the four corners of the frame body 21, and an anchor 27 is attached to each other end. The anchor 27 is on the bottom of the water, and the four anchor ropes 26 are used to position the frame body 21 in the water. In the frame body 21, the hollow portions of the individual long bodies 22 constituting the frame body 21 communicate with each other to form one long airtight chamber 28 which is continuous as a whole. The airtight chamber 28 includes an air inlet / outlet 29 through which air enters and exits the top and a water inlet / outlet 30 through which water enters and exits. The air inlet / outlet 29 is connected to a compressor 31 provided separately by an air pipe 32 so that air is pressed into the airtight chamber 28 to increase the buoyancy of the frame body 21, or the air in the airtight chamber 28 is discharged. By doing so, the frame body 21 can be sunk.
[0003]
As understood from the above configuration, in the frame body 21 of this example, in order to prevent the polluted area from diffusing into the water, a curtain 24 that surrounds the four sides is installed in the water in a mosquito net hanging type without a ceiling. To do. And the upper end of the curtain 24 is attached to the frame body 21 that floats on the water surface to delimit the region on the water surface, and the overflow of the contaminated water beyond the upper end is prevented. Is suspended in the water by the weight chain 25, but the work is usually performed with a gap between the lower end and the bottom of the water. Although it occurs, it is often a small amount in terms of the ratio, so it is usually left as it is.
[0004]
For example, when performing a work of putting a predetermined amount of earth and sand into a certain amount of water bottom, the frame body and the curtain suspended on the frame body are used for the diffusion of pollution. In other words, a carrier ship loaded with earth and sand is brought close to a frame that has been stretched at a predetermined location, and the crane is used to drop the earth and sand inside the carrier toward the water surface inside the frame. To do. At this time, the smoke from the earth and sand diffuses into the water and gradually spreads, but this is prevented and the spread of the dirt is confined within the curtain to prevent the diffusion of pollution to the water area outside the area. be able to.
[0005]
[Problems to be solved by the invention]
In this type of ups and downs type frame, it is always a problem and the first problem that needs to be solved relates to measures for storing the device in the case of a typhoon or the like.
[0006]
That is, there are the following two storage measures in such a case.
i) Tow the device elsewhere.
ii) Take measures for storage in this place.
Of these two, the method of towing to another place is a relatively simple method as long as the intended purpose can be achieved with only a short distance towing, but at least the evacuation is required. When a large typhoon is approaching, it is extremely rare that the intended purpose can be easily achieved with only a short tow. In addition, if there is no terrain suitable for evacuation in the vicinity, movement over a long distance becomes indispensable, and realization becomes extremely difficult.
[0007]
Therefore, it is necessary to rely on the countermeasure of ii). In this case, the current state is not maintained as it is, but the frame body is submerged to a depth in contact with the bottom of the water in this place, and the bottom of the water is as much as possible. Place the frame in contact with the surface to increase the frictional force between the frame and the bottom of the water, and minimize the spread of wave energy raging on the surface of the water and the interference of the moving force forced by the water flow Is done. For example, in order to realize this countermeasure with the conventional floating and sinking type frame body of FIG. 6, the frame body 21 starts to sink due to its own weight by opening a release valve normally provided on the upstream side of the air pipe 32. . At the same time, outside water enters the airtight chamber 28 of the frame body 21 from the water inlet / outlet 30, and the air in the room is released into the atmosphere from the release valve, and the air and water in the airtight chamber 28 are replaced with water. Is done. As a result, the frame body 21 gradually loses buoyancy and sinks into the water.
[0008]
However, the mode of subsidence at this time is not necessarily the intended mode in a frame having a conventional structure as shown in FIG. That is,
a) It is extremely difficult to completely discharge the entire amount of air in the hermetic chamber 28 from the air inlet / outlet 29 to the outside of the chamber. In order to realize this, it is necessary to correct the inclination of the frame body 21 in water and hold the posture so that the position of the air inlet / outlet port 29 is the highest position in the airtight chamber 28. The structure is extremely difficult.
[0009]
b) As described above, the air in the hermetic chamber 28 is not completely discharged, and as a result, the frame 21 may sink partway, but may not sink further. At that time, as a measure of bitterness in order to escape from the influence of the typhoon, the weight of the frame body 21 must be increased by that amount from the beginning, and the weight must reach the bottom of the water by its own weight, but it is uneconomical. In addition, it is inevitable that the movement of the rise and fall is slow.
[0010]
The present invention has been made in view of the current state of the prior art as described above. Based on a relatively simple configuration, the present invention is flexible with respect to characteristics not found in conventional devices, that is, the environment in which the frame is placed. It is possible to provide adaptability that can respond to the situation, and to improve the agility and reliability of the frame body's ups and downs operation, and to promote protection and maintenance from equipment damage due to weather such as typhoons or forced movement of the equipment The purpose is to realize a floating frame that can be used.
[0011]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the floating frame body of the present invention is a frame in which a plurality of flexible hollow elongated bodies are sequentially connected to form an endless annular body as a whole. A plurality of predetermined airtight chambers are formed in a plurality of predetermined locations by partitioning the middle of the frame in a transverse direction, and each of these airtight chambers has an air inlet / outlet for allowing air to enter and exit from the top portion. A water inlet / outlet that allows water to enter and exit from the lower part, and is provided on the outside of the water inlet / outlet so that the water inlet / outlet can be circulated and blocked by pressing in the direction from the outside toward the water inlet / outlet or by removing the pressing force. By providing an oscillating plate and individually replacing each airtight chamber with water and air in the room, a desired floatation operation in water is performed while applying an arbitrary floatation force to each airtight chamber. Done Providing a control unit having a because the compressor.
[0012]
In order to float and sink the float-and-sink frame body configured as described above in water while maintaining a predetermined balance, the control unit having a compressor is attached to the frame body with respect to the individual airtight chamber. Adjust the buoyancy to achieve the required posture. The adjustment of the buoyancy can be carried out by replacing water and air with respect to an arbitrary hermetic chamber.
[0013]
The airtight chamber provided in the frame body is configured to include the air inlet / outlet through which air enters and exits from the top and the water inlet / outlet through which water enters and exits.
[0014]
By simplifying the means for replacement of water and air for each of the hermetic chambers in this way, the operation of releasing the water in the hermetic chamber and loading it with air is used to replace the air from the compressor with the air at the top. It can be realized simply by introducing it from the doorway into the airtight chamber, and on the contrary, the operation of discharging the air in the airtight chamber and loading water is usually provided upstream of the air pipe used for introducing air from the compressor. By opening the release valve, the frame body can sink automatically due to its own weight and can be automatically realized.
[0015]
Furthermore, the rocking plate is provided outside the water inlet / outlet provided in the hermetic chamber, and the rocking plate is pressed in the direction from the outside toward the water inlet / outlet, or the pressing force is removed, thereby removing the water inlet / outlet. It is convenient to ensure that distribution and blocking are performed. With this configuration, the buoyancy of the frame body is removed, the frame body is sunk in the bottom of the water, and as a result, when the lower surface of the frame comes into contact with the ground of the bottom of the water, the rocking provided outside the water inlet / outlet is provided. The moving plate is pressed against the frame body side by the ground to automatically close the water inlet / outlet and block the water in / out, and as a result, the sediment at the bottom of the water from the water inlet / outlet is prevented from entering the frame body.
[0016]
The entire shape of the frame body may be a rectangle or a square as in claim 2, and each of the independent airtight chambers may be provided at four locations including the four corners of the shape.
[0017]
When the frame body has such a configuration, for example, when the frame body is submerged in water, each operation on the airtight chambers provided at the four corners is calculated for predicting the degree of the effect on the level of the frame body. There is an advantage that it is easy to perform, and the operation is facilitated and speeded up.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, each embodiment of the floating frame of the present invention will be described in detail with reference to the drawings. In FIG. 1, the frame 1 has a rectangular shape as a whole in plan view. Then, a plurality of hollow long bodies 2 or elbow-type hollow long bodies 2a used for corners are sequentially connected in the longitudinal direction to form an endless annular body as a whole. A curtain rail 3 is attached to the lower part of the frame 1, and a pollution shielding curtain 4 is suspended along the frame 1 along the entire length of the curtain rail 3. A weight chain 5 is attached to the bottom of the curtain 4 and pulls the curtain 4 downward in water. As a weight for pulling the curtain 4 downward, the weight chain 5 is particularly convenient when used in a case where flexibility is required. On the other hand, when rigidity is required, the weight chain 5 is used. Instead of 5, it is preferable to use a straight pipe or H-shaped steel. Reference numeral 6 denotes an anchor rope, each end of which is tied to the four corners of the frame 1, and an anchor 7 is attached to each end. The anchor 7 is on the bottom of the water, and the four anchor ropes 6 are used to position the frame body 1 in the water.
[0019]
The frame body 1 can give the frame body 1 as an integrated body appropriate flexibility by setting the thickness of the individual long bodies 2 or 2a constituting the frame body 1 or the like. As another means for giving the long body the necessary flexibility, it is of course possible to select the material of the long body. A long body having an inner diameter of 600 mmφ to 1000 mmφ and a thickness of about 5 mm to 6 mm is most often used. Moreover, as an external dimension of a frame, although depending on the purpose of use, there is an example in which a long side of 21000 mm × short side of 15000 mm is used for preventing marine pollution.
[0020]
8 is a packing which does not have a communication hole interposed in the connecting portion of the long body, and the four airtight chambers 9 formed in the middle of the frame 1 are partitioned by the packing 8 at both ends. As shown in FIG. 2, the four airtight chambers 9-1, 9-2, 9-3 and 9-4 are provided in four locations including the long bodies 2a arranged at the four corners of the frame 1, respectively. It is formed as a closed room. Each of the long bodies 2a has an air inlet / outlet 10 through which air enters and exits from the top and a water inlet / outlet 11 through which water enters and exits (see FIGS. 4 and 5). The air inlet / outlet port 10 is connected to a compressor 12 provided separately by air pipes 13-1, 13-2, 13-3, and 13-4, so that air is pressed into each airtight chamber 9 and individually. By increasing the buoyancy of the hermetic chamber or by individually releasing the air in the hermetic chamber, the buoyancy or settling force of the hermetic chamber can be increased or decreased individually. Reference numeral 14 denotes a long air body, which is disposed at two locations in the frame 1 as shown in FIG. The long air body 14 is always filled with a certain amount of air and does not participate in the buoyancy increase / decrease operation. Reference numeral 15 denotes a passage frame for a person to walk on the frame 1, and 16 denotes a striped plate fitted in the passage frame 15.
[0021]
Reference numeral 17 denotes a swing plate (FIGS. 4 and 5), which is made of a rubber plate or the like. The swing plate 17 is provided on the outer side of the water inlet / outlet 11 and is pressed in the direction from the outside toward the water inlet / outlet 11 or removes the pressing force. Accordingly, the entrance / exit can be distributed and blocked. The rocking plate 17 is for automatically preventing the sand and the like of the water bottom from entering the airtight chamber 9 from the water inlet / outlet port 11 when the frame body 1 is settled and landed on the water bottom.
[0022]
The operation of the floating frame having the above configuration will be described below. FIG. 1 is a view showing a state in which a curtain 4 is stretched around the lower portion of the frame body 1, the frame body 1 is floated on the water surface, and a pollution confinement region is formed below the curtain body 4. In such a case, the compressor 12 or the like is usually loaded in a small boat moored near the frame. It is assumed that the floating frame body is installed in this state, and the work in which the pollution occurs in the frame, for example, the work of putting the earth and sand for landfill into the frame is performed. With the introduction of earth and sand, the entire area of the area spreads and gradually spreads dirt and dust from the earth and sand, and by blocking this and confining the spread of dirt and dust inside the curtain, Pollution can be prevented.
[0023]
Next, in order to protect this device from damage or runoff against an intrusion such as a typhoon, the action of sinking the entire device deeply into the water bottom will be described. All the air pipes 13-1 to 13-4 communicating with the four airtight chambers 9-1 to 9-4 are discharged, water is introduced into the airtight chamber, and the entire apparatus is moved toward the bottom of the water. Allow to settle. At this time, as shown in FIG. 3, the entire apparatus may not be stably fixed on the ground due to the unevenness of the topography of the water bottom. In such a case, in the conventional structure device, the entire device is configured as a single rigid body, so that a part of the device gets on the ground in the water in an unstable state, and a part of the device floats in the air. Therefore, when the typhoon cannot sufficiently exert the resistance to protect the current position against the interference of waves raging on the surface of the water or the forcible force to take the entire device off the site with the force of strong water flow There is. According to the present invention device, due to the flexibility of the frame body, as shown in FIG. 3, appropriate deformation is naturally performed for softly adhering along the water bottom topography. Alternatively, desired deformation can be realized more easily by individually controlling the buoyancy of the hermetic chambers at the four corners in addition to the flexibility. As a result, the posture of the entire device including the frame and curtain is lowered as much as possible along the undulations of the bottom of the water, increasing the frictional force generated between the frame and the bottom of the water. This is effective in minimizing the damage caused by typhoons, etc. by minimizing the influence of turbulent waves and the influence of lateral forced movement caused by water flow.
[0024]
【The invention's effect】
Since the floating frame according to the present invention is configured as described above, the following effects can be obtained.
[0025]
1) In claim 1, independent airtight chambers are formed at a plurality of predetermined locations along the frame, and water and air in the airtight chambers are individually replaced with the airtight chambers. As a result, it is possible to control the ups and downs generated in the frame, which contributes to the improvement in the speed and reliability of the ups and downs of the frame.
[0026]
Also, due to the flexibility of the device, the frictional force generated between the frame and the bottom of the water by making the posture of the whole device as low as possible along the undulation of the bottom of the water when the device is set to the bottom of the water. In order to minimize the effects of lateral movement forces caused by the interference of waves raging on the surface of the water or the flow of water, damage from equipment caused by bad weather such as typhoons or damage from equipment movement Can promote defense and conservation of
[0027]
2) The work of discharging the water in the airtight chamber and loading it with air, or the process of discharging the air in the airtight chamber and loading it with water, is carried out efficiently with a very simple configuration and is quick work. Contribute to the implementation and automation of operations.
[0028]
3) With a simple configuration, it is possible to automatically prevent foreign substances such as earth and sand from entering the airtight chamber together with water.
[0029]
4) In claim 2, since the independent airtight chambers are formed at the four corners of the rectangular or square frame, the control force required for the four corners can be easily predicted when the frame is raised and lowered. In addition to the quickness and certainty of body ups and downs, it greatly contributes to the implementation of planned operations.
[Brief description of the drawings]
FIG. 1 is a perspective view of an entire apparatus in an embodiment of the apparatus of the present invention.
FIG. 2 is an explanatory diagram relating to the operating system of the embodiment of FIG. 1;
FIG. 3 is a perspective view for explaining the operation of the embodiment of FIG. 1;
4 is a cross-sectional view for explaining an aspect of the operation of the main part of the embodiment of FIG. 1. FIG.
FIG. 5 is a cross-sectional view for explaining another aspect of the operation of the main part of the embodiment of FIG. 1;
FIG. 6 is a perspective view of a conventional overall apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 2, 2a Long body 4 Curtain 8 Packing 9 Airtight chamber 10 Air inlet / outlet 11 Water inlet / outlet 12 Compressor 13 Air pipe 17 Oscillating plate

Claims (2)

It is a frame configured by sequentially connecting a plurality of flexible hollow elongated bodies to form an endless annular body as a whole,
By dividing the frame body in the transverse direction in an airtight manner, independent airtight chambers are configured at predetermined locations, respectively. Each of these airtight chambers has an air inlet / outlet for allowing air to enter and exit from the top, and water at the lower portion. And a water inlet / outlet that allows the water inlet / outlet to flow in and out of the water inlet / outlet so that the water inlet / outlet can be circulated or blocked by removing the pressing force. A plate is provided, and by performing replacement of indoor air and air individually for each airtight chamber, a desired floatation operation in water is performed while applying an arbitrary floatation force to each airtight chamber. A float-set frame is provided with a control means including a compressor for making the 2. The floating and sinking type frame according to claim 1, wherein the entire shape of the frame is formed in a rectangle or a square, and the independent airtight chambers are formed at four locations each including four corners of the shape. .

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