JP3854600B2 - Water intake equipment - Google Patents

Description

  The present invention relates to water intake equipment provided in dams, reservoirs, etc., and in particular, selective intake of the surface layer and arbitrary layers is possible, and it can be easily added to existing dams and reservoirs as well as new dams and reservoirs. It relates to water intake equipment that can be used.

  In general, the water temperature stratification in summer in dams and reservoirs is a surface water layer (about 2-5 m deep) heated by solar heat, and a water climatic layer (about 3-10 m deep) where the water temperature changes abruptly. ) And deep water layers with low water temperature. Therefore, when water for irrigation is taken, it is necessary to take water from the surface water layer with high water temperature and release it in order to ensure a suitable water temperature for growing crops.

  In addition, when muddy water containing fine clay silt (feldspar, paraffin, etc.) flows into the dam lake due to heavy rain or flood, the muddy water stays in the hot water layer over a long period of time, and the silt gradually moves down the deep water layer Therefore, turbid water may be discharged several weeks to several months after heavy rain and flooding, and it is necessary to take water from a clear surface water and discharge it. More recently, in order to conserve water quality, it has been carried out by taking a density flow at the same water temperature level as the river upstream of the dam lake and releasing it. There is a need.

  However, since the water level of dams and reservoirs is constantly changing, in order to take water from the surface water layer or arbitrary layer in response to such demands, it is necessary to make the water intake follow the changing water level, Furthermore, it is necessary to match the intake height to an arbitrary layer at the fluctuating water level. Therefore, in the past, for example, a multi-stage, multi-pipe, plate-shaped roller gate that draws water by forming multiple stages of water intakes at different depths on the dam's dam is combined in a multistage interleaving system, and the gate is moved up and down to the water level. Water intake equipment such as a multistage cylinder gate that selects and draws water according to the water level by moving up and down a linear multistage type, circular cylinder, semi-circular cylinder, which is selected and combined with a float or a hoisting machine, has been used.

  Of these, the multi-stage intake system composed of circular cylinders is strong against water pressure and is suitable for intake facilities with high dams and large volumes of water. The linear multi-stage system using semicircular cylinders and plate roller gates is a circular cylinder. Since it is not as strong as water pressure, the circular cylinder type is used when the requirements for water pressure and water intake are less stringent, and the porous type and multi-tube type are used for equipment with even smaller water intake.

  In addition, in the case of water intake equipment provided in an old dam, as shown in FIG. That is, in FIG. 7, 1 is a dam, 2 is a concrete stagnation mouth, 3 is a metal screen, 4 is a lake bottom, 5 is a discharge pipe, and a screen 3 provided in the stagnation mouth 2 removes foreign matter in the water. Since the water is taken out while being removed and discharged through the discharge pipe 5, selective water intake is completely impossible.

  However, the above-mentioned water intake equipment is not so problematic when laying at the same time when a dam or reservoir is newly constructed, but when adding to an old dam with a crater only near the bottom of the lake as shown in FIG. There is a problem that construction work is difficult or construction costs are very high, which may require drastic changes in the civil engineering, temporary release of the discharge, and drying of the construction site by temporary cut-off etc. is there.

  Therefore, in Patent Document 1, in order to automatically follow water level fluctuations and enable effective water intake, and to simplify the construction by minimizing the contact with the civil engineering structure, according to the water level. A float that moves up and down is installed, and the underwater float is moved up and down with an elevator attached to the float, and a rubber impermeable curtain with a weight attached to the underwater float is installed to shield the area around and under the intake. Thus, a water intake facility is disclosed in which water flows into the impermeable curtain only from the gap between the upper side of the impermeable curtain and the float, and can be easily added to an existing dam.

JP 2002-275865 A

  However, in the water intake equipment disclosed in Patent Document 1, a weight is attached to a water-impervious curtain made of rubber on an underwater float, and the rubber film is tensioned by the weight, but the rubber film is simply suspended. There is a problem that water stoppage is bad because it is only there, and there is a problem that water enters from the gap, and it is unstable because it is a floating facility. In addition, a heavy weight is necessary for tensioning the water shielding curtain, and a problem arises in durability of the rubber constituting the curtain by attaching and pulling the heavy weight. Furthermore, in the water intake equipment disclosed in Patent Document 1, in order to take water in an arbitrary layer, it is necessary to change the water intake position by submerging it by pouring into the float.

  Therefore, in the present invention, intake water that can be selectively taken into the surface water layer and arbitrary layers according to fluctuations in the water level, and can be easily added to existing dams and reservoirs as well as new dams and reservoirs. Therefore, it is a problem to provide a water intake facility that can reduce the construction cost at a low cost without using a temporary stop of discharge and drying of a construction site by temporary cut-off during construction.

In order to solve the above problems, the water intake equipment of the present invention is:
It is a water intake facility that can open a port with an arbitrary height with respect to the water intake provided in the levee body,
The water intake facility includes a frame structure standing on both sides of the water intake, and is foldable into a door body storage chamber that can be moved up and down along the opening of the frame structure and provided at a lower portion of the frame structure. can accommodate a, and it is configured the opening in the door body coupled member provided so as to be water-impervious, configured to be able to adjust the height of the bung hole by folding the door conjugate, the door binding The body has a plurality of door bodies connected by girders, and at both ends of the girders, a roller that runs on a door stop provided in the frame structure is arranged, and the rollers are arranged when the door body combined body is folded. The present invention is characterized in that the traveling position in the door-to-door is made different between the front-side girder and the door-side girder .

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Further , according to the present invention, the shift rail that shifts the roller arranged in the beam on the front side of the door body storage chamber at the door body folding start position when the door body combined body is folded per door. Water intake equipment characterized by the arrangement of

Further, according to the present invention, the door stop is constrained by a roller disposed on a girder on the front side of the door body storage chamber when the door body assembly is folded at the folding start position of the door body assembly. A water intake facility characterized by opening the water can be obtained.

  In the door assembly in the water intake facility according to the present invention, a metal, rubber, synthetic resin, or cloth is used as the water shielding film.

  The water intake equipment according to the present invention configured as described above has a frame structure standing upright on both sides of the water intake, and a door body assembly configured to be foldable along the opening of the frame structure is provided to be movable up and down. Since the height of the shed is adjusted by folding the door assembly, the water intake facility itself can be configured at a very low price despite the possibility of water intake from any position. There is no problem of water entering through the gap. In addition, the frame structure can be installed underwater by simply holding it on the site and fixing it with anchors, etc., as in the past, temporarily suspending discharge during construction, drying the construction site by temporary cutoff, etc. There is no need to perform construction, and the construction cost is very low.

In addition, the door structure combined body can be moved up and down along the door contact provided in the frame structure, and the frame structure lower space is effectively used by accommodating the door structure in a folding door body storage chamber at the lower part of the frame structure. The water intake equipment can be configured with a simple configuration, and the door contact requires precision, but the conventional linear multi-stage gate requires doors corresponding to the number of steps and is expensive. Can be configured at low cost.

  And the door body combined body can be moved up and down with very little force by arranging rollers on the girders that connect the door bodies and running the door-to-door, and a small motor as the power of the water intake equipment In addition to being able to be used, it requires little power and can provide an economical water intake facility.

In addition, the roller arranged in the beam is configured so that when the door assembly is folded, the running position in the door is different between the beam on the front side of the door body storage chamber and the beam on the door stop side. And, when the door assembly is folded, a door is provided with a shift rail that shifts a roller arranged in a girder on the front side of the door assembly chamber at the folding start position of the door assembly. When the body combined body is folded, the shift rail side roller is pushed out by the shift rail, and the door body combined body is folded to the opposite side and can be prevented from being damaged.

Further, the door stop is configured to release the restraint of a roller disposed on a girder on the front side of the door body storage chamber when the door body assembly is folded at the folding start position of the door body assembly. Therefore, the door body is not folded until reaching the folding start position, and can be reliably folded at this position.

  And, it is possible to make a highly durable water intake facility by using a metal water shielding film for the door assembly, and to make an inexpensive water intake facility by using a rubber, synthetic resin, or cloth water shielding film. be able to.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, but are merely illustrative examples. Not too much.

  FIG. 1 (A) is a front view of an embodiment of a water intake facility according to the present invention, FIG. 1 (B) is a side view of the same section, and FIG. 2 is a door storage chamber in the water intake facility according to the present invention. 3A is a sectional view taken along the line AA in the water intake facility detailed side view of the present invention shown in FIG. 2, and FIG. 3B is the present invention shown in FIG. FIG. 4 is a perspective view for explaining the structure of the door assembly of the water intake equipment according to the present invention, and FIG. 5 is the water intake according to the present invention. The perspective view for demonstrating the structure for folding the door body coupling | bond body of an installation, FIG. 6 (A) demonstrates the folding condition of the door body coupling | bonding body of the water intake equipment which concerns on this invention, and the door stop provided in the flame | frame. FIG. 6 (B) is a perspective view for explaining the relationship between the roller provided on the beam of the door assembly and the door stop. FIG. 6C is a cross-sectional view of the portion shown as AA in FIG. 6A, and FIG. 6C is a view of the portion shown as BB in FIG. 6A for explaining the shift rail provided at the position where the door assembly is folded. It is sectional drawing.

  In the figure, 1 is a dam, 2 is an existing concrete stagnation port provided in the conventional dam 1 as described in FIG. 7, and 3 is a metal screen for removing foreign substances in the water provided in the stagnation port 2. 4 is a bottom of a lake, 5 is an existing discharge pipe, 10 is a water intake facility according to the present invention, 11 is a water intake facility according to the present invention, and is a frame structure erected on both sides of a water intake port composed of a stagnation port 2 The body, 12 constitutes the water intake equipment of the present invention, and is a door body assembly configured to be foldable while being raised and lowered along the opening of the frame structure 11, and 13 is a storage chamber for the folded door body assembly 12, 14 is an open / close device that raises and lowers the stagnation opening of the water intake equipment of the present invention by raising and lowering the door assembly 12, 15 is an operation stand, 16 is an inspection table, 17 is a security gate, and 18 is an elevator that raises and lowers the door assembly 12. Wire 19 for causing the floor of the door storage chamber 13 20 is a flea opening door body, the flea outlet door 20 is Aru fitted a metallic flea port screen 22 to the metal frame 21. Reference numeral 23 denotes a water-proof door body, and this water-proof door body 23 is configured by arranging a metal water-proof film, rubber or synthetic resin, or a cloth water-proof film 25 on a metal frame 24. 26 is a girder for connecting the muzzle door body 20 and the plurality of water-impervious door bodies 23, 27 is a link arm for connecting the girder 26 to support each door body, and 28 is a door structure combined body 12 for the frame structure 11. A guide roller 29 for smoothly raising and lowering along the door stop 30 provided on the door 29 also raises and lowers the door assembly 12 along the door stop 30, and the water shielding door 23 is the door storage floor. When the surface 19 is reached, a folding roller for folding the door assembly 12, 30 is a door for guiding the guide roller 28 and the folding roller 29 provided in the frame structure 11, and 31 is a door for the folding roller 29. A shift rail for pushing to the front side of the storage chamber 13, 32 is an arrow indicating the shift direction of the folding roller 29, 33 is a pulley sheave (pulley) for hanging the lifting wire 18 of the door assembly 12, 34 A arrow indicating the flow of water.

  As shown in FIG. 1, the water intake facility 10 of the present invention has a frame structure 11 standing on both sides of a water intake formed by an existing stagnation mouth 2, and an opening of the frame structure 11 is illustrated in FIG. 4. As shown in FIG. 5, FIG. 5 and FIG. 6 (A), the door body combined body 12 can be folded and can be lifted and lowered so that the water can be blocked, and the door body combined body 12 is folded from the lower side. Thus, the height of the squeeze opening opened at the upper part of the door assembly 12 can be adjusted.

  Among these, as shown in FIGS. 4, 5, and 6 (A), the door assembly 12 includes a squeeze port door 20 in which a metal squeezing port screen 22 is inserted into a metal frame 21. Similarly, a plurality of water shielding door bodies 23 each having a water shielding film 25 made of metal, rubber, synthetic resin, cloth, or the like are connected to a metal frame body 24 by links 26 and linked arms 27. Further, a guide roller 28 and a folding roller 29 are disposed on both sides of the beam 26 so as to run in a door stop 30 provided on the frame structure 11.

As shown in FIG. 6A, the guide roller 28 and the folding roller 29 are arranged so that when the door assembly 12 is folded, the folding roller 29 is attached to the beam 26 on the front side of the door housing chamber 13. As shown in FIG. 6B, the guide roller 28 and the folding roller 29 are provided in the door stopper 30 provided in the frame structure 11. The running positions in are different. Further, as shown in FIG. 2, a pulley sheave (pulley) 33 on which the lifting wire 18 of the door assembly 12 is hung is provided on the top of the squeeze door 20 in the door assembly 12.

  On the other hand, as shown in FIG. 1 and as described above, the frame structure 11 is erected on both sides of the water intake port constituted by the existing stagnation mouth 2 and can cover the opening with the door body coupling body 12 and shield the water. In addition, a door body storage chamber 13 for accommodating the folded door body combined body 12 is provided at the lower portion of the intake port where the screen 3 in the existing stagnation mouth 2 is provided. As shown in FIGS. 5 and 6A, the door body storage chamber 13 has a door body so that water does not enter the door body storage chamber 13 when the door body combined body 12 is folded. It has a box shape in which only the part into which the combined body 12 enters is opened.

  Further, as shown in FIG. 6A, the frame structure 11 is provided with a door stop 30 on which a guide roller 28 and a folding roller 29 provided on the beam 26 of the door assembly 12 travel. Further, as shown in FIGS. 5 and 6C, a shift rail 31 for pushing the folding roller to the front side of the door housing chamber is provided at the folding start position of the door assembly 12 in the door stop 30. In addition, the side of the door stop 30 facing the shift rail 31 is not provided with a guide so as to release the restraint of the folding roller 29.

  The water intake system 10 of the present invention configured as described above is a steel frame that is manufactured at the factory on both sides of the water intake port configured by the existing stagnation port 2 and has the door body storage chamber 13 at the lower part. The structure 11 is erected and fixed to the concrete dam 1 by underwater construction using an anchor. Then, the lifting / lowering wire 18 of the door assembly 12 that is lowered from the opening / closing device 14 on the operation stand 15 provided on the upper portion is hung on the pulley 33 shown in FIG. 2, and is attached to the door stop 30 provided on the frame structure 11. 4, the water-impervious door body 23 and the guide roller 28 and the folding roller 29 in the squeeze door body 20 constituting the door assembly 12 shown in FIG. 4 are fitted and lowered as shown in FIG. Therefore, when the lower end of the door assembly 12 reaches the door storage chamber 13, the opening of the frame structure 11 is covered with the water-impervious door 23 constituting the door assembly 12 and is blocked.

  For example, when water is taken from a warm surface water layer in this state, the opening / closing device 14 provided on the operation stand 15 at the top of the water intake facility 10 is operated so that the squeeze door body 20 reaches the surface water layer by the wire 18. I'll take it down. At this time, for example, when the water level of the dam is low and the lower end of the door assembly 12 enters the door storage chamber 13 provided below the frame structure 11 and the folding roller 29 reaches the folding start position, the folding roller 29 Is pushed in the direction of arrow 32 by the shift rail 31, whereby the door assembly 12 is folded as shown in FIG. 2, FIG. 3 (B), or FIG. 6 (A).

  When the stagnation door body 20 reaches the surface water layer, the water in the surface water layer flows from the stagnation door body 20 and is provided at the intake port in the existing stagnation mouth 2 as indicated by an arrow 34 in FIG. It passes through the screen 3 and is sent out from the discharge pipe 5.

  In the above explanation, the case where the water level of the dam is low and the water of the surface water layer is taken up is explained as an example, but when the water level of the dam is high and the water of an arbitrary layer such as a hot water layer is taken up, What is necessary is just to operate the opening-and-closing apparatus 14 provided in the operation stand 15 of the upper part of the water intake equipment 10, and to make the squeeze door body 20 located in the arbitrary layers which want to take water with the wire 18.

  Thus, according to the present invention, the frame structure 11 is erected on both sides of the intake port of the existing water intake facility, and the door assembly 12 configured to be foldable along the opening of the frame structure 11 is raised and lowered. Since the height of the shed is adjusted by folding the door assembly 12 so that water can be taken from any position, the water intake facility 10 itself can be configured very inexpensively. Thus, there is no problem that water enters through the gap as in the prior art. Furthermore, the frame structure 11 can be installed in the field and can be fixed by anchors, so it can be applied underwater. As in the past, the construction site can be temporarily stopped by temporary discharge, the construction site can be dried, etc. There is no need to perform construction, and the construction cost is very low.

Further, the door conjugate 12 to allow lifting by doorstop 30 provided on the frame structure 11, by accommodating the mat seen door body storage chamber 13 fold in the frame structure 11 below, the frame structure 11 The intake facility 10 can be configured with a simple configuration that effectively uses the lower space, and the door stop 30 requires accuracy, but the conventional linear multi-stage gate requires doors corresponding to the number of steps and is expensive accordingly. On the other hand, in the present invention, by folding, only a single door is required, and the cost can be reduced accordingly.

  And the door body coupling | bond body 12 can raise / lower with very little force by having arrange | positioned the roller to the girder 26 which connects door bodies, and was made to drive | work the door stop 30, The power of the water intake equipment 10 A small motor can be used as well as a small amount of electric power to be used, and an economical water intake facility 10 can be provided.

Further, the roller disposed in the beam 26 travels in the door unit 30 with the beam 26 on the front side of the door body storage chamber 13 and the beam 26 on the door door 30 side when the door assembly 12 is folded. When the door assembly 12 is folded, the rollers arranged on the beam 26 on the front side of the door storage chamber 13 are shifted at the folding start position of the door assembly 12 when the door assembly 12 is folded. When the door assembly 12 is folded, the shift rail 31 side roller is pushed out by the shift rail 31 and the door assembly 12 is folded to the opposite side and damaged. Can be prevented.

Further, the door stop 30 releases the restraint of the rollers disposed on the beam 26 on the front side of the door body storage chamber 13 when the door body joined body 12 is folded at the folding start position of the door body joined body 12. Therefore, the door body is not folded until it reaches the folding start position, and can be reliably folded at this position.

  And, it is possible to obtain a highly durable water intake facility 10 by using a metal water-impervious membrane for the door assembly 12, and by using a rubber or synthetic resin or cloth water-impervious membrane, an inexpensive water intake facility 10 can be used.

  A frame structure is erected on both sides of the water intake, and a door body assembly that can be folded along the opening of the frame structure is provided so that it can be raised and lowered. Since the water can be taken from any position, the water intake equipment itself can be constructed at a very low cost, and the frame structure can be brought to the site and fixed with an anchor. Underwater construction is possible, and it is not necessary to temporarily stop the discharge and to dry the construction site by temporary cut-off, etc., as in the past, and it is possible to provide a water intake facility with very low construction costs.

(A) is the front view of one Example of the water intake equipment which becomes this invention, (B) is the side view which made the cross section into the part similarly. It is a detailed side view of the door storage chamber in the water intake equipment which becomes this invention. (A) is sectional drawing in the part described with AA in the water intake equipment detailed side view of this invention shown in FIG. 2, (B) is BB in the water intake equipment detailed side view of this invention shown in FIG. It is sectional drawing in the part described. It is a perspective view for demonstrating the structure of the door body coupling body of the water intake equipment which becomes this invention. It is a perspective view for demonstrating the structure for folding the door body coupling body of the water intake equipment which becomes this invention. (A) is a perspective view for demonstrating the folding condition of the door body coupling body of the water intake equipment which becomes this invention, and the door stop provided in the flame | frame, (B) is the roller and door which were provided in the girder of the door body coupling body. Sectional view of the part indicated by A-A in (A) to explain the relationship with the hit, (C) is the same as B-- in (A) to explain the shift rail provided at the position where the door assembly is folded. It is sectional drawing of the part shown as B. FIG. It is the figure which showed the example of the water intake equipment in which the mouth was provided only near the lake bottom, such as an old dam.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Barrage 2 Stitch 3 Screen 5 Outlet pipe 10 Water intake equipment 11 Frame structure 12 Door body combination body 13 Door body storage room 19 Door body storage room floor surface 20 Stitch door body 23 Water shielding door body 27 Link arm 31 Shift rail

Claims (5)

It is a water intake facility that can open a port with an arbitrary height with respect to the water intake provided in the levee body,
The water intake facility includes a frame structure standing on both sides of the water intake, and is foldable into a door body storage chamber that can be moved up and down along the opening of the frame structure and provided at a lower portion of the frame structure. can accommodate a, and it is configured the opening in the door body coupled member provided so as to be water-impervious, configured to be able to adjust the height of the bung hole by folding the door conjugate, the door binding The body has a plurality of door bodies connected by girders, and at both ends of the girders, a roller that runs on a door stop provided in the frame structure is arranged, and the rollers are arranged when the door body combined body is folded. A water intake facility characterized in that the traveling position in the door-to-door is made different between the girder on the front side and the door-to-door side of the door storage chamber . A shift rail that shifts a roller arranged in a girder on the front side of the door body storage chamber when the door body combined body is folded is arranged at the door body folding start position. The water intake equipment according to claim 1. The door stop releases the restraint of a roller disposed on a girder on the front side of the door body storage chamber when the door body joined body is folded at the folding start position of the door body joined body. The water intake equipment according to claim 1. The water intake equipment according to claim 1, wherein the door body in the door body combined body uses metal as a water shielding film . The water intake equipment according to claim 1, wherein the door body in the door body combined body uses rubber, synthetic resin, or cloth as a water shielding film .

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