Composite water taking facility for mountainous river channel
By designing a composite water intake facility consisting of a seepage corridor, a solid bed submerged dam, a filter layer, and a collection well in mountainous river channels, the problem of unstable water supply caused by high turbidity of river water and deep bedrock burial during the flood season has been solved, achieving stable water supply and efficient water intake throughout the year.
Patent Information
- Application Number
- CN202423062941.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-12
AI Technical Summary
When using existing technologies to draw water from mountainous rivers, the increased turbidity of the river water during the flood season can easily cause blockages in the water supply pipelines, and the water supply guarantee rate is low when the bedrock is buried deep.
Design a composite water intake facility for mountainous river channels, including a seepage corridor, a fixed-bed submerged dam, a filter layer and a collection well. The seepage corridor performs preliminary filtration, and the fixed-bed submerged dam and sand flushing gate control the water intake method. The water intake components and collection well supply water separately or simultaneously during different flood seasons, and an intercepting wall is added to increase the water intake.
This ensures that the water supply is unaffected by muddy water during the flood season throughout the year, guaranteeing the stability and reliability of the water supply, increasing the water intake during non-flood seasons, and avoiding the problem of water pipeline blockage.
Smart Images
Figure CN223548650U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water conservancy engineering technology, specifically relating to a composite water intake facility for mountainous river channels. Background Technology
[0002] Currently, water sources for water supply projects in my country generally rely on surface water from rivers. This is mostly achieved by constructing new dams at the water intake points to raise the water level and draw water directly from the river. However, this method of directly drawing surface water from rivers leads to increased turbidity during the flood season, easily causing blockages in water pipelines. While constructing infiltration corridors combined with collection wells could solve the problem of turbidity during the flood season, if the water intake hub is located in a mountainous area with clear river water, deep bedrock, and low water flow, the water supply guarantee rate would be relatively low if relying solely on infiltration corridors and collection wells.
[0003] Therefore, developing a composite water intake facility has great market potential. Utility Model Content
[0004] The purpose of this invention is to solve the problems of the prior art and provide a composite water intake facility for mountainous river channels.
[0005] To solve the technical problem, the technical solution of this utility model is: a composite water intake facility for mountainous river channels, including a seepage corridor, a solid-bed submerged dam, a filter layer, and a collection well. The collection well is connected to one side of the seepage corridor. A filter layer for seepage treatment of river water is set above the seepage corridor. A solid-bed submerged dam for protecting the seepage corridor and the filter layer is set downstream of the seepage corridor. The top height of the solid-bed submerged dam is higher than the top height of the filter layer. A sand flushing gate is set on the solid-bed submerged dam. The bottom height of the sand flushing gate is lower than the top height of the filter layer. A water intake component is set on the side of the gate pier of the sand flushing gate near the filter layer. The water intake component and the collection well supply water to the water plant simultaneously or independently.
[0006] Preferably, the top height of the solid bed submerged dam is 0.5~1.0m higher than the top height of the filter layer.
[0007] Preferably, the water intake assembly includes a water intake pipe and a valve well. One end of the water intake pipe is located on the side of the gate pier of the sand flushing gate near the filter layer, and the other end of the water intake pipe is connected to the water plant. A valve well is installed on the water intake pipe.
[0008] Preferably, the bottom of the solid bed submerged dam is provided with a seepage intercepting wall perpendicular to the river channel, and the dimension of the seepage intercepting wall along the width of the river channel is larger than the dimension of the solid bed submerged dam along the width of the river channel.
[0009] Preferably, the infiltration corridor is arranged along the river in a manner that is parallel to the river, perpendicular to the river, or a combination of both. The top plate and upper sidewalls of the infiltration corridor are provided with inlet holes arranged in a quincunx pattern.
[0010] Preferably, the filter media layer includes an upstream section and a downstream section. The downstream section is parallel to the horizontal plane and its end is connected to the solid bed submerged dam. The upstream section and the downstream section are connected and the included angle between them is greater than 120°. A gabion mattress is provided at the bottom of the upstream section, and excavated material is arranged on top of the gabion mattress. The excavated material covers the top of the upstream section and is flush with the top of the downstream section.
[0011] Preferably, the infiltration channel is located in the space below the filter layer, and the remaining space between the infiltration channel and the filter layer is filled with pebbles.
[0012] Compared with the prior art, the advantages of this utility model are:
[0013] (1) This utility model discloses a composite water intake facility for mountain rivers, which consists of a seepage corridor, a collection well, a solid bed submerged dam and a filter layer. The seepage corridor can be arranged along the river, perpendicular to the river, or a combination of both. A solid bed submerged dam is built downstream of the seepage corridor in a direction perpendicular to the river. The top of the solid bed submerged dam is slightly higher than the river or the filter layer. A sand flushing gate is installed on the solid bed submerged dam. A water intake component is installed on the side of the gate pier of the sand flushing gate near the filter layer. Water can be taken from the river during the non-flood season through the water intake component. During the flood season, the water intake pipe valve is closed and water is not taken directly from the river. Instead, water is transported to the water plant through the collection well. Thus, the water intake component and the collection well can be used to supply water to the water plant simultaneously or independently, thereby achieving composite water intake.
[0014] (2) For river channels with large bedrock burial depth, this utility model sets up a seepage intercepting wall perpendicular to the river channel under the solid bed submerged dam to increase the water intake of the seepage corridor and ensure the water supply guarantee rate of the project;
[0015] (3) This utility model has the characteristics of being unaffected by muddy water during the flood season throughout the year, and having a more reliable water intake. Attached Figure Description
[0016] Figure 1 A schematic diagram of the plan layout of a composite water intake facility for mountainous river channels according to this utility model;
[0017] Figure 2 A cross-sectional schematic diagram of a composite water intake facility for mountainous river channels according to this utility model;
[0018] Figure 3 A longitudinal section schematic diagram of a composite water intake facility for mountainous river channels according to this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Infiltration gallery, 2. Solid bed submerged dam, 3. Cut-off wall, 4. Inlet hole, 5. Filter media layer, 6. Gravel, 7. Gabion mattress, 8. Excavated material, 9. Sump well, 10. Sand flushing gate, 11. Water diversion pipeline, 12. Valve well.
[0021] 5-1. Upstream section; 5-2. Downstream section. Detailed Implementation
[0022] The specific embodiments of this utility model are described below with reference to examples:
[0023] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0024] Example 1
[0025] like Figures 1-3 As shown, this utility model discloses a composite water intake facility for mountainous river channels, including a seepage corridor 1, a fixed-bed submerged dam 2, a filter layer 5, and a collection well 9. The collection well 9 is connected to one side of the seepage corridor 1. A filter layer 5 for seepage treatment of river water is set above the seepage corridor 1. A fixed-bed submerged dam 2 for protecting the seepage corridor 1 and the filter layer 5 is set downstream of the seepage corridor 1. The top height of the fixed-bed submerged dam 2 is higher than the top height of the filter layer 5. A sand flushing gate 10 is set on the fixed-bed submerged dam 2. The bottom height of the sand flushing gate 10 is lower than the top height of the filter layer 5. A water intake component is set on the side of the gate pier of the sand flushing gate 10 near the filter layer 5. The water intake component and the collection well 9 supply water to the water plant simultaneously or independently.
[0026] Example 2
[0027] like Figure 2 As shown, preferably, the top height of the solid bed submerged dam 2 is 0.5~1.0m higher than the top height of the filter layer 5.
[0028] like Figure 2 As shown, preferably, the bottom of the solid bed submerged dam 2 is provided with a seepage intercepting wall 3 perpendicular to the river channel, and the dimension of the seepage intercepting wall 3 along the width of the river channel is larger than the dimension of the solid bed submerged dam 2 along the width of the river channel.
[0029] like Figure 1 , 3 As shown, preferably, the water intake assembly includes a water intake pipe 11 and a valve well 12. One end of the water intake pipe 11 is located on the side of the gate pier of the sand flushing gate 10 near the filter layer 5, and the other end of the water intake pipe 11 is connected to the water plant. A valve well 12 is provided on the water intake pipe 11.
[0030] To prevent water flow from eroding and cutting into the riverbed and to ensure the safety of the seepage corridor 1, a submerged dam 2 is constructed downstream of the seepage corridor 1, perpendicular to the river channel. The top of the submerged dam 2 is slightly higher than the river channel or the filter layer 5 by about 0.5 to 1.0 meters. A sand flushing gate 10 is installed on one side of the submerged dam 2, and a water intake pipe 11 (with a valve well 12 to control water intake) is installed on one side of the gate pier. A trash rack is installed at the pipe opening. During the non-flood season, the sand flushing gate 10 is lowered, and water is drawn from in front of the sand flushing gate 10, which is then combined with the water from the collection well 9 and the water supply pipe to the water plant. During the flood season, the valve well 12 is closed, and water is not directly drawn from the river channel. To improve the water supply security rate, a cutoff wall 3 is installed perpendicular to the river channel at the water intake hub to increase the water intake of the seepage corridor 1. Overall, by setting up a seepage interceptor wall 3 to increase the water intake of the seepage corridor 1, and by setting up a sand flushing gate 10 on one side of the solid bed submerged dam 2 to take water from the surface of the river during the non-flood season, the water supply security level is improved.
[0031] like Figure 2 The figure shows a cross-sectional schematic diagram of a composite water intake facility for mountainous river channels according to the present invention. The cross-section of the infiltration corridor 1 is used as the cross-section of the entire composite water intake facility. The figure only shows the arrangement of the infiltration corridor 1 perpendicular to the water flow direction.
[0032] Example 3
[0033] like Figure 2 , 3 As shown, preferably, the infiltration corridor 1 is arranged along the river in a form that is parallel to the river, perpendicular to the river, or a combination of parallel to the river and perpendicular to the river. The top plate and upper side wall of the infiltration corridor 1 are provided with water inlet holes 4 arranged in a quincunx pattern.
[0034] like Figure 3 The diagram shown is a longitudinal section schematic of a composite water intake facility for mountainous river channels according to the present invention, with the longitudinal section of the infiltration corridor 1 serving as the longitudinal section of the entire composite water intake facility.
[0035] The seepage corridor 1 is a reinforced concrete box culvert with plum blossom-shaped water inlet holes on the top slab and upper side wall, which facilitates the infiltration of clear river water.
[0036] like Figure 2 As shown, preferably, the infiltration channel 1 is located in the space below the filter layer 5, and the remaining space between the infiltration channel 1 and the filter layer 5 is filled with pebbles 6.
[0037] Example 4
[0038] like Figure 2As shown, preferably, the filter layer 5 includes an upstream section 5-1 and a downstream section 5-2. The downstream section 5-2 is parallel to the horizontal plane and its end is connected to the solid bed submerged dam 2. The upstream section 5-1 and the downstream section 5-2 are connected and the included angle between them is greater than 120°. A gabion mesh 7 is provided at the bottom of the upstream section 5-1, and excavated material 8 is arranged on the top of the gabion mesh 7. The excavated material 8 covers the top of the upstream section 5-1 and is flush with the top of the downstream section 5-2.
[0039] The infiltration corridor 1 is provided with a filter material layer (graded sand and gravel reverse filter material) 5 on both sides and the top, and a gabion mattress 7 is laid upstream of the infiltration corridor 1 to prevent erosion. The water in the infiltration corridor 1 is collected in the collection well 9, and water is transported to the water plant through the water collection well 9 via a water pipe.
[0040] The working principle of this utility model is as follows:
[0041] like Figures 1-3 As shown, this utility model discloses a composite water intake facility for mountainous river channels. A water collection well 9 is connected to a seepage corridor 1, and the water collection well 9 is equipped with a water conveyance pipe to supply water to the water plant. At the same time, the top height of the solid bed submerged dam 2 is higher than the top height of the filter material layer 5. A sand flushing gate 10 is installed on the solid bed submerged dam 2. A water diversion component is installed on the side of the gate pier of the sand flushing gate 10 near the filter material layer 5. Water is supplied to the water plant through the water diversion component. During the non-flood season, water can be supplied to the water plant through the water collection well 9 or the water diversion component, either separately or simultaneously. During the flood season, the sand flushing gate 10 is opened and the valve well 12 is closed, and water is supplied to the water plant only through the water collection well 9. The above methods, through the water diversion component and the water collection well 9, supply water to the water plant simultaneously or independently, jointly improve the water supply security.
[0042] This utility model discloses a composite water intake facility for mountainous river channels, consisting of a seepage corridor, a collection well, a fixed-bed submerged dam, and a filter layer. The seepage corridor can be arranged along the river, perpendicular to the river, or a combination of both. A fixed-bed submerged dam is constructed downstream of the seepage corridor in a direction perpendicular to the river. The top of the fixed-bed submerged dam is slightly higher than the river or the filter layer. A sand flushing gate is installed on the fixed-bed submerged dam. A water intake component is installed on the side of the gate pier near the filter layer. Water can be taken from the river during the non-flood season through the water intake component. During the flood season, the water intake pipeline valve is closed, and water is not directly taken from the river. Instead, water is transported to the water plant through the collection well. Thus, the water intake component and the collection well can be used to supply water to the water plant simultaneously or independently, achieving composite water intake.
[0043] For river channels with deep bedrock, this invention involves installing a seepage interceptor wall perpendicular to the river channel below a solid bed submerged dam to increase the water intake of the seepage corridor and ensure the water supply guarantee rate of the project.
[0044] This invention features the advantage of being unaffected by muddy water during the flood season throughout the year, ensuring a more reliable water supply.
[0045] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
[0046] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.
Claims
1. A composite water intake facility for mountainous river channels, comprising a seepage channel (1), a solid-bed submerged dam (2), a filter layer (5), and a collection well (9), wherein the collection well (9) is connected to one side of the seepage channel (1), a filter layer (5) for seepage treatment of river water is provided above the seepage channel (1), and a solid-bed submerged dam (2) for protecting the seepage channel (1) and the filter layer (5) is provided downstream of the seepage channel (1), characterized in that: The top height of the solid bed submerged dam (2) is higher than the top height of the filter layer (5). A sand flushing gate (10) is installed on the solid bed submerged dam (2). The bottom height of the sand flushing gate (10) is lower than the top height of the filter layer (5). A water diversion component is installed on the side of the gate pier of the sand flushing gate (10) close to the filter layer (5). The water diversion component and the water collection well (9) supply water to the water plant simultaneously or independently.
2. The composite water intake facility for mountainous river channels according to claim 1, characterized in that: The top height of the solid bed submerged dam (2) is 0.5~1.0m higher than the top height of the filter layer (5).
3. The composite water intake facility for mountainous river channels according to claim 1, characterized in that: The water intake assembly includes a water intake pipe (11) and a valve well (12). One end of the water intake pipe (11) is located on the side of the gate pier of the sand flushing gate (10) near the filter layer (5), and the other end of the water intake pipe (11) is connected to the water plant. A valve well (12) is provided on the water intake pipe (11).
4. A composite water intake facility for mountainous river channels according to claim 1, characterized in that: The bottom of the solid bed submerged dam (2) is provided with a seepage intercepting wall (3) perpendicular to the river channel. The size of the seepage intercepting wall (3) along the width of the river channel is larger than the size of the solid bed submerged dam (2) along the width of the river channel.
5. A composite water intake facility for mountainous river channels according to claim 1, characterized in that: The infiltration corridor (1) is arranged along the river in a form that is parallel to the river, perpendicular to the river, or a combination of parallel to the river and perpendicular to the river. The top plate and upper side wall of the infiltration corridor (1) are arranged with water inlet holes (4) in a plum blossom shape.
6. A composite water intake facility for mountainous river channels according to claim 1, characterized in that: The filter media layer (5) includes an upstream section (5-1) and a downstream section (5-2). The downstream section (5-2) is parallel to the horizontal plane. The end of the downstream section (5-2) is connected to the solid bed submerged dam (2). The upstream section (5-1) is connected to the downstream section (5-2) and the included angle between them is greater than 120°. A gabion mattress (7) is provided at the bottom of the upstream section (5-1). Excavated material (8) is arranged on the top of the gabion mattress (7). The excavated material (8) covers the top of the upstream section (5-1) and is flush with the top of the downstream section (5-2).
7. A composite water intake facility for mountainous river channels according to claim 1, characterized in that: The infiltration channel (1) is located in the space below the filter layer (5), and the remaining space between the infiltration channel (1) and the filter layer (5) is filled with pebbles (6).