CN115821861A - Height-adjustable weir dam system suitable for seasonal river channel - Google Patents
Height-adjustable weir dam system suitable for seasonal river channel Download PDFInfo
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- CN115821861A CN115821861A CN202211706247.6A CN202211706247A CN115821861A CN 115821861 A CN115821861 A CN 115821861A CN 202211706247 A CN202211706247 A CN 202211706247A CN 115821861 A CN115821861 A CN 115821861A
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- 230000001932 seasonal effect Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 200
- 239000011152 fibreglass Substances 0.000 claims abstract description 71
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The invention discloses a height-adjustable weir dam system suitable for seasonal riverways, wherein a groove is arranged on the basis of a concrete dam, a glass reinforced plastic dam is arranged in the groove, and an elastic rubber seal is arranged on the glass reinforced plastic dam; the height limiting device is arranged to limit the height position of the glass reinforced plastic dam; a pipeline pump is arranged in a control pump room of the weir dam control system, the water inlet end of the pipeline pump is connected with the water collecting well, a pipeline pump water raising pipe at the rear end is introduced into the lower end of the groove through a water distribution main pipe, and an overrunning pipe is connected with a water inlet pipe and a water outlet pipe; the support arm of rotatory screens device rotates to perpendicular glass steel dam minor face direction, supports on the triangle wedge of minor face. According to the weir dam system, the height of the glass reinforced plastic dam can be conveniently adjusted, and in the seasonal dry period of the river channel, the glass reinforced plastic dam is lifted to store water in the river channel, so that the water storage depth can be adjusted; upstream and downstream water replenishing of the dam and dam front water depth adjustment can be realized through the overrunning pipe; and upstream and downstream water replenishing can be realized through dam overflow.
Description
Technical Field
The invention relates to the technical field of civil engineering and hydraulic engineering for supplementing water in river channels, in particular to a height-adjustable weir dam system suitable for seasonal river channels.
Background
The seasonal river channel is divided into obvious dry seasons and obvious rain seasons due to obvious rainfall season characteristics of a river basin, and the river has obvious season characteristics and is represented as a rich water period and a low water period. The river water volume in the full-water period is large, the flood discharge pressure of the river channel is large, and the water volume of the river channel is far larger than that of the ecological base flow, so that the water for a river ecological system and landscape can be met; and when the water flow of the river is less than the ecological base flow in the low water period, the ecological system of the river is damaged. Meanwhile, the method also has the characteristics for the source head type river channel and the small branch flow with smaller river basin area.
In order to maintain the water quantity of the seasonal riverway in the dry season not lower than the ecological base flow of the riverway, the common method at present is to transfer water remotely, supplement water in municipal administration or construct a dam for storing water. The remote water transfer requires the construction of a booster pump station and a long-distance water delivery pipeline, and both the construction cost and the later operation cost are high; the municipal water replenishing is to return the treated river water or underground water which is conveyed for a long distance to the river channel, and is undoubtedly a water replenishing mode with higher cost; and the traditional dam is built, so that the cross section of the river is reduced, and the flood-discharging function of the river is greatly influenced.
Therefore, there is a need in the art for a height adjustable weir dam system to overcome the above-mentioned deficiencies.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a height-adjustable weir dam system suitable for seasonal river channels, which does not influence the flood running function of rivers and can reduce the construction investment and the operation cost; in addition, the dam also has the function of passing through, and is very suitable for building the hydrophilic space of the river channel.
In order to solve the technical problems, the invention adopts the following technical scheme:
a height-adjustable weir dam system suitable for seasonal river channels comprises a concrete dam foundation and is characterized in that a groove is formed in the middle of the concrete dam foundation, a glass reinforced plastic dam capable of moving up and down is arranged in the groove in a matched mode, the glass reinforced plastic dam is of a hollow rectangular structure (cuboid dam) made of glass reinforced plastic, the side edges of the left side and the right side of the glass reinforced plastic dam are respectively matched with the corresponding sides of the groove, the side edge of the lower end of the glass reinforced plastic dam is in contact with the concrete dam foundation and transmits acting force, at least one elastic rubber seal is arranged on the glass reinforced plastic dam, and gaps of contact parts between the glass reinforced plastic dam and the concrete dam foundation are sealed; the upper end of the groove of the concrete dam foundation is provided with a height limiting device for limiting the height position of the glass reinforced plastic dam;
the dam is characterized by further comprising a dam control system, wherein a control pump room of the dam control system is arranged near the concrete dam foundation, at least one pipeline pump is arranged in the control pump room, the water inlet end of the pipeline pump is connected with a water inlet pipe, the water inlet end of the water inlet pipe is connected with a water collecting well arranged in front of the dam body, and when the pipeline pump is started, water in the water collecting well flows into a pipeline of the pipeline pump through the water inlet pipe; a pipeline pump water raising pipe at the rear end of the pipeline pump is introduced into the lower end of the groove through a water distribution main pipe;
an overrunning pipe connected with a water inlet pipe and a water outlet pipe is arranged in the control pump room, and an electric flow regulating valve is arranged on the overrunning pipe;
still include rotatory screens device, rotatory screens device is installed in the both sides of recess minor face, mainly includes handle, pivot and support arm, and the handle that sets up on the pivot top drives the pivot and rotates, drives the support arm of connection in the pivot again and rotates, rotates the support arm to perpendicular glass steel dam minor face direction, supports on the triangular wedge of glass steel dam minor face.
Therefore, the height of the glass reinforced plastic dam can be conveniently adjusted, and in the seasonal dry period of the river channel, the glass reinforced plastic dam is lifted to store water in the river channel so as to maintain ecological base flow of the river channel and water for landscape of the river channel; the water storage depth can be adjusted by adjusting the height of the dam; upstream and downstream water replenishing of the dam and dam front water depth adjustment can be realized through the overrunning pipe; and upstream and downstream water replenishing can be realized through dam overflow.
Furthermore, stainless steel backing plates are respectively arranged on two sides of the groove and are made into inwards concave sliding grooves, so that the glass reinforced plastic dam matched in the inwards concave sliding grooves can slide up and down in the inwards concave sliding grooves. Therefore, the sliding resistance can be greatly reduced, the sliding sensitivity is improved, and the service life is prolonged
Furthermore, the long edge and the short edge of the glass reinforced plastic dam are respectively provided with an elastic rubber seal, and the size of a gap between the elastic rubber seal and the side wall of the groove in contact with the elastic rubber seal is adjusted by rotating the fastening bolt. Therefore, the excellent sealing effect of the glass reinforced plastic dam and the groove can be achieved through elastic rubber sealing, and water storage leakage is prevented.
Furthermore, the water distribution main pipe is connected with a water outlet pipe through a pipeline with an electric gate valve, and water in the groove is output by opening the electric gate valve. Therefore, the water distribution main pipe has the function of bidirectional water delivery, namely, water with larger pressure can be input into the groove, and the water in the groove (stored water in the dam body) can be delivered outwards through the water outlet pipe.
Furthermore, a plurality of groups of vertical water distribution pipes are arranged on the water distribution main pipe, and a water cap is arranged at the top end of each vertical water distribution pipe and passes through
The water cap leads water into the groove. Therefore, water flow with larger pressure (impact force) can be formed, and the impact force of the water flow is uniformly applied to the glass reinforced plastic dam body.
Furthermore, a plurality of transverse water distribution branch pipes are arranged on the water distribution main pipe, and vertical water distribution vertical pipes pass through the water distribution main pipe and the water distribution vertical pipes
The connected water distribution branch pipe is connected to the water distribution main pipe. Therefore, the water caps can be uniformly distributed in the grooves to generate uniform impact force to act on the glass fiber reinforced plastic dam body. In addition, when water is discharged to the outside, sediment such as silt can be discharged as quickly as possible.
Furthermore, the pipeline pumps are two and are arranged in parallel. The two sets are mutually standby, so that the use safety is ensured, and more water quantity and impact force can be provided.
Furthermore, a rib plate is arranged inside the hollow structure of the glass reinforced plastic dam. This can enhance its rigidity and strength.
The rotary clamping device also comprises a bearing, a gear disc, a sleeve and a rotating shaft, wherein the rotating shaft is connected with the sleeve through the bearing at the upper end and the lower end, and the gear disc is arranged at the top end of the sleeve; the rotating shaft is driven to rotate by rotating the handle, and the supporting arm is fixed on the rotating shaft and rotates along with the rotating shaft; after the handle rotates to the fixed position, the handle can be clamped in the gear of the gear disc and used for fixing the position of the gear disc.
Compared with the prior art, the invention has the following beneficial effects:
1. the glass fiber reinforced plastic dam can conveniently adjust the height, and in the seasonal dry river period, the dam is lifted to store water in the river channel so as to maintain the ecological base flow of the river channel and the water for the landscape of the river channel. The water storage depth can be adjusted by adjusting the height of the dam; upstream and downstream water replenishing of the dam and dam front water depth adjustment can be realized through the overrunning pipe; and upstream and downstream water replenishing can be realized through dam overflow.
2. When the river channel is in a rich water period or in a river basin, and rainstorm has flood-carrying requirements, the dam can be lowered below the river bed elevation so as to eliminate the influence on the flood-carrying function of the river channel.
3. Meanwhile, the dam has a certain passing function, pedestrians can walk to opposite banks of a river channel through the dam, and the dam is particularly suitable for the river channel in which a hydrophilic space needs to be built.
Drawings
FIG. 1 is a top plan view of the weir dam system of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B of fig. 1.
FIG. 4 is a front view of the structure of the glass fiber reinforced plastic dam (member 3) of the present invention;
FIG. 5 is a schematic view of the elastic rubber sealing structure of the glass reinforced plastic dam (member 3);
FIG. 6 is a cross-sectional view of a fiber reinforced plastic dam of the present invention taken along the line C-C;
FIG. 7 is a right side view of FIG. 4;
FIG. 8 is a side view of a molten glass dam of the present invention;
fig. 9 is a schematic structural view of the rotary locking device of the present invention.
In the figure, 1, step; 2. a height limiting device; 3. a glass reinforced plastic dam; 4. a stainless steel backing plate; 5. a rotary clamping device; 6. a water cap; 7. a water distribution branch pipe; 8. a water distribution main pipe; 10. a water collecting well; 11. a water inlet pipe; 12. controlling the pump room; 13. a pressure gauge; 14. a rubber soft joint; 15. a pipeline pump; 16. a gate valve; 17. a pipeline pump water raising pipe; 18. a check valve; 19. a overrunning tube; 20. an electric flow regulating valve; 21. an electric gate valve; 22. a safety relief valve; 23. a sump; 24. a submersible pump; 25. a water outlet pipe; 26. a water distribution vertical pipe; 27. fastening a bolt; 28. an access hole; 29. a rib plate; 30. elastic rubber sealing; 31. a triangular wedge; 32. a handle; 33. a bearing; 34. a gear plate; 35. a sleeve; 36. a rotating shaft; 37. a support arm shaft; 38. a support arm; 100. a concrete dam foundation; 101. and (4) a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 9, a height-adjustable barrage system suitable for seasonal river channels includes a concrete dam foundation 100, the concrete dam foundation 100 is constructed according to a river channel dam construction process, and is generally of a reinforced concrete structure, a groove 101 is reserved (provided) in the middle of the concrete dam foundation, the groove 101 is generally of a rectangular concave structure, a glass reinforced plastic dam 3 capable of moving up and down is arranged in the groove 101 in a matched manner, the glass reinforced plastic dam 3 is of a hollow rectangular structure made of glass steel, the dam is shown as a cuboid structure in the figure, side edges (short edges of the rectangle) on the left side and the right side of the dam are respectively matched with corresponding sides of the groove 101, for example, in concrete layers on the two sides, or in order to increase flexibility of up-and-down sliding of the glass reinforced plastic dam 3, stainless steel backing plates 4 are respectively arranged in the concrete layers, and the stainless steel backing plates 4 are made into concave sliding grooves, so that the glass reinforced plastic dam 3 matched in the concave sliding grooves can slide in the concave sliding grooves, and resistance of up-and-down sliding is reduced. The side edge (the long edge of the rectangle) of the lower end of the glass reinforced plastic dam 3 is contacted with the concrete dam foundation 100 and transmits acting force, even if the glass reinforced plastic dam 3 rises to the highest designed position, the lower end of the glass reinforced plastic dam is still contacted with the concrete dam foundation 100, and the height of the overlapped part formed by the contact of the glass reinforced plastic dam and the concrete dam foundation is determined by the process; thus, the three sides of the glass fiber reinforced plastic dam 3 transmit the acting force formed by the water pressure stored in the dam to the concrete layer of the concrete dam foundation 100. The glass fiber reinforced plastic dam 3 is made of glass fiber reinforced plastic materials which are light in weight, high in strength and corrosion resistant, and adopts a hollow cuboid structure to reduce the weight of the dam and increase the buoyancy of the dam; ribbed plates 29 are arranged inside the hollow structure of the glass fiber reinforced plastic dam 3 to enhance the structural strength of the dam; the glass reinforced plastic dam 3 is at least provided with an elastic rubber seal 30 and a fastening bolt 27, wherein the long side and the short side are respectively provided with the elastic rubber seal 30, and the fastening bolt 27 is rotated to adjust the elongation of the elastic rubber seal 30 so as to seal the gap of the contact part between the glass reinforced plastic dam 3 and the concrete dam foundation 100; the dam is provided with the triangular wedge 31 in minor face both sides, and the triangular wedge 31 that sets up along the direction of height interval can cooperate with support arm 38 respectively, and support arm 38 rotates the back and can support from below for the position of fixed glass steel dam 3 adjusts its height position. The concrete dam foundation 100 is provided with steps 1 on both banks of a river, and pedestrians can walk from a river bank road to the glass fiber reinforced plastic dam 3 through the steps 1.
A weir dam control system is also included, the control pump room 12 of the weir dam control system is arranged at a suitable position near the concrete dam foundation 100, such as near the shore, and the bottom plate of the control pump room 12 is generally flush with the groove bottom plate of the concrete dam foundation 100. At least one pipeline pump 15 is arranged in the control pump room 12, the pipeline pump 15 can be manually controlled on site and controlled by a start-stop button of the control pump room 12, and necessary auxiliary components such as a gate valve 16, a pressure gauge 13, a rubber soft joint 14 and a check valve 18 for maintenance are arranged in front of and behind the pipeline pump 15. The water inlet end of the pipeline pump 15 is connected with the water inlet pipe 11, the water inlet end of the water inlet pipe 11 is connected with the water collecting well 10 arranged in front of the dam body (in the water incoming direction), and when the pipeline pump 15 is started, water in the water collecting well 10 can flow into a pipeline of the pipeline pump 15 through the water inlet pipe 11; the pipe pump water raising pipe 17 at the rear end of the pipe pump 15 is communicated into the groove 101, and specifically, water is input into the lower end of the groove 101 through the water distribution main pipe 8 of the water distribution system, or is connected with the water outlet pipe 25, so that the water in the pipe pump 15 is discharged outwards. A check valve 18 is installed in the pipe pump head pipe 17 to prevent water in the pipe from flowing backward.
The pipe pump 15 shown in the figure is two pumps arranged in parallel, and can be started only one (the other is standby) or simultaneously to provide more water volume and impact force. When the glass fiber reinforced plastic dam 3 needs to be lifted, one pipeline pump is started, the other pipeline pump is used for standby, water is supplied to the groove of the concrete dam foundation 100 through the pipeline pump, and the glass fiber reinforced plastic dam 3 is lifted upwards under the combined action of buoyancy and water outlet pressure; when the concrete dam foundation 100 groove needs to be desilted, the two pipeline pumps are simultaneously started, and silt in the groove is removed through high-speed water flow.
An overrunning pipe 19 connected with a water inlet pipe 11 and a water outlet pipe 25 is installed in the control pump room 12, namely the overrunning pipe 19 is arranged in parallel with the pipeline pump 15, an electric flow regulating valve 20 is installed on the overrunning pipe 19, and the water depth in front of a dam can be regulated by regulating the opening degree of a valve. The water distribution main pipe 8 is connected with the water outlet pipe 25 through a pipeline with an electric gate valve 21, water in the groove 101 can be output by opening the electric gate valve 21, and water in the groove of the dam can be emptied, so that the dam descends; a safety relief valve 22 is also provided to open the relief when the water pressure exceeds a set level, and the water flowing out of the relief also flows out through the water outlet pipe 25.
A sump 23 is arranged in the control pump room 12, a submersible pump 24 is arranged in the sump 23, the submersible pump 24 is started when needed, and accumulated water is discharged outwards through a connected water outlet pipe 25 or is directly discharged outwards for discharging the accumulated water in the control pump room. .
A plurality of groups of vertical water distribution pipes 26 are arranged on the water distribution main pipe 8, a water cap 6 is arranged at the top end of each vertical water distribution pipe 26, or a plurality of transverse water distribution branch pipes 7 are arranged on the water distribution main pipe 8, the vertical water distribution pipes 26 are connected to the water distribution main pipe 8 through the connected water distribution branch pipes 7 to form a water flow channel, and water is introduced into the grooves 101 through the water caps 6. The water cap 6 is arranged at the top end of the water distribution vertical pipe 26, and can adjust the water flow direction in the water distribution pipeline to be downward water so as to empty the water in the dam groove.
At the upper end of the groove 101 of the concrete dam foundation 100, a height limiting device 2 is provided for limiting the height position of the glass reinforced plastic dam 3, and the height limiting device 2 can be installed on the steps of the dam foundation in a layered arrangement. But limit for height device 2 horizontal rotation will limit for height device 2 rotation to dam recess one side, and it is spacing on glass steel dam 3, can prevent that glass steel dam 3 from continuing to rise under effects such as buoyancy.
The rotary clamping device 5 is arranged on two sides of the short side of the groove 101, and mainly comprises a handle 32, a rotating shaft 36 and a supporting arm 38, wherein the handle 32 arranged on the rotating shaft 36 (shown as the top end of the rotating shaft 36 in the figure) drives the rotating shaft 36 to rotate; shown in the figure, consisting of a handle 32, a bearing 33, a gear plate 34, a sleeve 35, a rotating shaft 36 and a supporting arm 38; the handle 32 is fixed on the top end of a rotating shaft 36, supporting arms 38 are arranged on the rotating shaft 36 at intervals along the height direction, the rotating shaft 36 is connected with a sleeve 35 at the upper end and the lower end through bearings 33, and a gear disc 34 is installed at the top end of the sleeve 35. The rotating shaft 36 is driven by the rotating handle 32 to rotate, the supporting arm 38 can be rotated to be vertical to the short side direction of the glass reinforced plastic dam 3 and supported on the triangular wedge 31 of the short side, thus the glass reinforced plastic dam 3 is allowed to rise under the action of buoyancy and water inflow impact, but the dam can be prevented from descending, and after the dam reaches the preset height, the glass reinforced plastic dam 3 is fixed at the preset height. The supporting arm 38 is rotated by the rotating handle 21 to the direction parallel to the short side of the dam, and is separated from the triangular wedge 31, so that the glass reinforced plastic dam 3 descends without being blocked by the supporting arm 38. The handle 32 can be snapped into a sized disc recess at the top of the sleeve 35 to fix the handle position. The support arm 38 is rotatable up and not rotatable down. The rotating shaft 36 is driven to rotate by rotating the handle 32, and the supporting arm 38 is fixed on the rotating shaft 36 and rotates along with the rotating shaft; after the handle 32 is rotated to the fixed position, the handle 32 can be clamped in the gear of the gear plate 34 for fixing the position of the gear plate 34.
The working process of the invention is introduced: in the dry period of a river channel, when the glass reinforced plastic dam 3 needs to be lifted to a certain height for water storage, firstly, the height limiting device 2 installed on the corresponding elevation step 1 is rotated to one side of the glass reinforced plastic dam 3, meanwhile, the rotary clamping device 5 is rotated, the supporting arm 38 extends to the glass reinforced plastic dam 3, then the pipeline pump 15 in the control pump room 12 is started (one is started), river water collected in the water collecting well 10 is pressurized and then sequentially passes through the water inlet pipe 11, the pipeline pump water lifting pipe 17, the check valve 18, the water distribution main pipe 8, the water distribution branch pipe 7, the water distribution vertical pipe 26 and the water cap 6, and is conveyed into the groove 101 of the dam, under the combined action of buoyancy and water outlet impact force, the glass reinforced plastic dam 3 is lifted upwards, when the glass reinforced plastic dam 3 reaches the preset height, the glass reinforced plastic dam 3 is prevented from rising by the height limiting device 2, then the pipeline pump 15 is closed, and the glass reinforced plastic dam 3 is fixed at the preset elevation under the action of the buoyancy and the supporting arm 38. When the instantaneous starting pressure of the pipeline pump 15 is too high, the safety relief valve 22 automatically starts pressure relief.
When the water depth in front of the dam needs to be adjusted, the electric flow control valve 20 can be opened, river water on the upstream of the dam flows through the water collecting well 10, the water inlet pipe 11, the surpassing pipe 19, the electric flow control valve 20 and the water outlet pipe 25 in sequence and flows into the downstream of the dam, and the water flow can be controlled by adjusting the opening degree of the electric flow control valve, so that the water depth in front of the dam is controlled.
When the dam groove needs to be desilted, firstly, the height limiting device 2 is rotated to one side of the glass reinforced plastic dam 3, meanwhile, the rotary clamping device 5 is rotated, the supporting arm 38 extends to the glass reinforced plastic dam 3, then the pipeline pumps 15 in the control pump room 12 are started (two pumps are started), river water collected in the water collecting well 10 is pressurized, then the water inlet pipe 11, the pipeline pump water raising pipe 17, the check valve 18, the water distribution main pipe 8, the water distribution branch pipe 7, the water distribution vertical pipe 26 and the water cap 6 are sequentially communicated into the groove of the dam foundation 9, and silt is flushed out of the dam groove under the action of high-speed water flow.
When the upstream of the river channel is small in water, the gap between the glass reinforced plastic dam 3 and the stainless steel backing plate 4 needs to be sealed to reduce the water loss, the fastening bolt 27 can be rotated to reduce the gap between the elastic rubber seal 30 and the stainless steel backing plate 4 or the concrete layer, and the sealing effect is achieved.
When the river channel is in a full water period or rainstorm occurs in a river channel watershed and flood discharge is required, and the dam is required to descend, the rotary clamping device 5 is firstly rotated to enable the supporting arm 38 to be parallel to the short side direction of the glass reinforced plastic dam 3 and not to support the glass reinforced plastic dam 3 any more, then the electric gate valve 21 is opened, water in the dam groove flows into a river channel at the downstream of the dam sequentially through the water cap 6, the water distribution vertical pipe 26, the water distribution branch pipe 7, the water distribution main pipe 8, the electric gate valve 21 and the water outlet pipe 25, and the glass reinforced plastic dam 3 descends until the height of the dam is flush with the elevation of the bottom of the river bed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (9)
1. The height-adjustable weir dam system suitable for the seasonal river channel comprises a concrete dam foundation (100) and is characterized in that a groove (101) is formed in the middle of the concrete dam foundation (100), a glass fiber reinforced plastic dam (3) capable of moving up and down is arranged in the groove (101) in a matched mode, the glass fiber reinforced plastic dam (3) is of a hollow rectangular structure made of glass fiber reinforced plastic, the side edges of the left side and the right side of the glass fiber reinforced plastic dam are respectively matched with the corresponding side of the groove (101), the side edge of the lower end of the glass fiber reinforced plastic dam (3) is in contact with the concrete dam foundation (100) and transmits acting force, at least one elastic rubber seal (30) is arranged on the glass fiber reinforced plastic dam (3), and gaps of contact parts between the glass fiber reinforced plastic dam (3) and the concrete dam foundation (100) are sealed; the upper end of a groove (101) of a concrete dam foundation (100) is provided with a height limiting device (2) for limiting the height position of a glass reinforced plastic dam (3);
the dam is characterized by further comprising a dam control system, a control pump room (12) of the dam control system is arranged near the concrete dam foundation (100), at least one pipeline pump (15) is arranged in the control pump room (12), the water inlet end of the pipeline pump (15) is connected with a water inlet pipe (11), the water inlet end of the water inlet pipe (11) is connected with a water collecting well (10) arranged in front of the dam body, and when the pipeline pump (15) is started, water in the water collecting well (10) flows into a pipeline of the pipeline pump (15) through the water inlet pipe (11); a pipeline pump water lifting pipe (17) at the rear end of the pipeline pump (15) is introduced into the lower end of the groove (101) through a water distribution main pipe (8);
an overrunning pipe (19) connected with a water inlet pipe (11) and a water outlet pipe (25) is arranged in the control pump room (12), and an electric flow regulating valve (20) is arranged on the overrunning pipe (19);
still include rotatory screens device (5), install in the both sides of recess (101) minor face rotatory screens device (5), mainly include handle (32), pivot (36) and support arm (38), handle (32) of setting on pivot (36) drive pivot (36) and rotate, drive support arm (38) of connecting on pivot (36) again and rotate, with support arm (38) rotatory to perpendicular glass steel dam (3) minor face direction, support on triangular wedge (31) of glass steel dam (3) minor face.
2. The adjustable-height weir dam system applicable to seasonal riverways according to claim 1, wherein stainless steel backing plates (4) are respectively arranged at both sides of the groove (101), and the stainless steel backing plates (4) are made into concave chutes, so that the left and right sides of the glass reinforced plastic dam (3) fitted in the concave chutes can slide in the concave chutes.
3. The adjustable-height weir dam system for seasonal river according to claim 2, wherein an elastic rubber seal (30) is provided on each of the long and short sides of the glass reinforced plastic dam (3), and the size of the gap between the elastic rubber seal (30) and the contacting groove sidewall is adjusted by rotating the fastening bolt (27).
4. The adjustable-height weir dam system for seasonal river according to any one of claims 1 to 3, wherein the water distribution main (8) is connected to the water outlet pipe (25) through a pipe having a power gate valve (21), and the water in the groove (101) is discharged by opening the power gate valve (21).
5. The weir dam system with adjustable height suitable for seasonal river according to any one of claims 1 to 3, wherein a plurality of groups of water distribution risers (26) are provided on the water distribution main (8), a water cap (6) is provided on the top of the water distribution risers (26), and water is introduced into the groove (101) through the water cap (6).
6. The weir dam system with adjustable height suitable for seasonal riverways according to claim 5, wherein a plurality of transverse distribution branch pipes (7) are arranged on the distribution main pipe (8), and the vertical distribution vertical pipe (26) is connected to the distribution main pipe (8) through the connected distribution branch pipes (7).
7. The adjustable height weir dam system for seasonal river channels of any one of claims 1 to 3 wherein the pipeline pumps (15) are two, arranged in parallel.
8. The adjustable height weir dam system for seasonal river channels according to any one of claims 1 to 3, wherein ribs (29) are provided inside the hollow structure of the glass reinforced plastic dam (3).
9. The adjustable-height weir dam system applicable to seasonal riverways according to any one of claims 1 to 3, wherein the rotary clamping device (5) further comprises a bearing (33), a gear disc (34), a sleeve (35) and a rotating shaft (36), the rotating shaft (36) is connected with the sleeve (35) at the upper end and the lower end through the bearing (33), and the gear disc (34) is mounted at the top end of the sleeve (35); the rotating shaft (36) is driven to rotate by rotating the handle (32), and the supporting arm (38) is fixed on the rotating shaft (36) and rotates along with the rotating shaft; after the handle (32) is rotated to the fixed position, the handle (32) can be clamped in the gear of the gear disc (34) for fixing the position of the gear disc (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211706247.6A CN115821861A (en) | 2022-12-29 | 2022-12-29 | Height-adjustable weir dam system suitable for seasonal river channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211706247.6A CN115821861A (en) | 2022-12-29 | 2022-12-29 | Height-adjustable weir dam system suitable for seasonal river channel |
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| Publication Number | Publication Date |
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| CN115821861A true CN115821861A (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211706247.6A Pending CN115821861A (en) | 2022-12-29 | 2022-12-29 | Height-adjustable weir dam system suitable for seasonal river channel |
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| CN (1) | CN115821861A (en) |
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| CN215562405U (en) * | 2021-08-23 | 2022-01-18 | 山东省水利科学研究院 | Novel urban river course rubber dam |
| CN215977150U (en) * | 2021-10-14 | 2022-03-08 | 江苏华菲凌云科技有限公司 | Hydraulic steel dam gate with anti-sliding function |
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| CN104480907A (en) * | 2014-12-13 | 2015-04-01 | 天津大学前沿技术研究院有限公司 | Hydraulic type lifting box-type retaining dam |
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