Mountain river water taking and filtering treatment device

Abstract

The invention relates to the technical field of water treatment, and discloses a mountain river water taking and filtering treatment device which comprises a water inlet assembly, a filtering assembly, a water outlet assembly and an overflow assembly. The filtering assembly comprises an infiltration channel and a graded filtering material, the water inlet assembly is connected with the infiltration channel through a water inlet hole, and the graded filtering material is located at the bottom of the infiltration channel; the water outlet assembly is arranged at the bottom of the graded filter material and comprises a water outlet pipeline and a first control valve, one end of the water outlet pipeline extends out of the infiltration channel, and the first control valve is mounted on the water outlet pipeline; the overflow assembly is connected with the infiltration channel through an overflow hole, and the overflow hole is higher than the water inlet hole. According to the device, raw water is introduced and filtered through the water inlet assembly, and filtered water is discharged through the water outlet assembly. The water level in the seepage channel can be adjusted through the first control valve, and when the water level is higher than the overflow holes, floaters such as pine needles and fallen leaves can enter the overflow channel through the overflow holes to be discharged, so that the problem that the floaters such as pine needles and fallen leaves are accumulated on the filter layer to affect the seepage effect and the filter efficiency is solved.

Description

Background Art

[0001] The invention relates to the technical field of water treatment, and in particular to a water intake, filtering and treating device for a mountain river.

[0003] Mountain river basins are rich in vegetation. Therefore, during the process of water intake from mountain rivers, the raw water obtained often carries a large amount of pine needles, fallen leaves and other debris seasonally, as the river flow changes and the seasonal growth of plants changes. These debris are small in size, low in density, and highly buoyant, making it difficult to effectively intercept them through traditional low dams and sedimentation tanks. The debris will enter the water treatment plant through the water pipeline along with the raw water. During transportation, it will not only accumulate at key locations such as the pressure reducing valves and gates on the water pipeline, causing blockages and even failure of the water pipeline; after entering the water plant, it will also increase the frequency of filter backwashing, accelerate the aging of the filter media, increase operating costs, and pose a threat to the stability and efficiency of the water supply.

[0004] In the prior art, the raw water carrying impurities is first filtered through a filtering device and then transported to a water treatment plant. The filtering device sequentially filters the raw water with multiple filter layers arranged in order from coarse to fine filtering accuracy to filter out impurities. Although this filtering device can filter out some impurities such as mud and sand to improve water quality, it cannot effectively process floating impurities such as pine needles and fallen leaves. Long-term use will cause pine needles and fallen leaves to accumulate on the filter layer, affecting the water seepage effect and filtering efficiency. Summary of the invention

[0005] In view of this, the present invention provides a mountain river water intake and filtration treatment device to solve the problem that the existing filtration treatment device cannot effectively treat floating debris such as pine needles and fallen leaves, which will cause the floating debris such as pine needles and fallen leaves to accumulate on the filter layer and thus affect the water infiltration effect and filtration efficiency.

[0006] In a first aspect, the present invention provides a mountain river water intake, filtration and treatment device, comprising:

[0007] Water inlet assembly;

[0008] A filter assembly, the filter assembly comprising: an infiltration channel and a graded filter material, the water inlet assembly is connected to the infiltration channel through a water inlet hole, and the graded filter material is arranged at the bottom of the infiltration channel;

[0009] A water outlet assembly, the water outlet assembly is arranged at the bottom of the graded filter material, and comprises a water outlet pipe and a first control valve, one end of the water outlet pipe extends out of the infiltration channel, and the control valve is arranged on the water outlet pipe;

[0010] An overflow component is connected to the seepage channel through an overflow hole, and the overflow hole is located higher than the water inlet hole.

[0011] Beneficial Effects

[0012] This mountain river water intake and filtration treatment device introduces raw water from the river into the infiltration channel through the water inlet component, filters it through the graded filter material in the infiltration channel, and the filtered water is discharged through the water outlet component. In addition, the water level in the infiltration channel can be raised by adjusting the water outlet flow rate of the outlet pipe through the first control valve. When the water level in the infiltration channel is higher than the overflow hole, pine needles, fallen leaves and other debris floating on the water surface can flow into the overflow component with the water through the overflow hole. This filtration treatment device can perform preliminary filtration treatment on the obtained raw water, and can regularly treat the floating debris such as pine needles and fallen leaves carried by the raw water in the infiltration channel to prevent the pine needles and fallen leaves from accumulating on the graded filter material or even entering the outlet pipe, thereby maintaining a good filtration effect and long-term stability of the filtration device.

[0013] In an optional embodiment, the graded filter material includes: a fine quartz sand filter material layer, a medium quartz sand filter material layer, a coarse gravel filter material layer and a pebble filter material layer arranged in sequence from top to bottom, and the outlet pipe is arranged in the pebble filter material layer.

[0014] Beneficial Effects

[0015] The graded filter material is composed of multiple filter layers arranged from top to bottom, with filtration accuracy ranging from fine to coarse, so that the fine quartz sand filter layer on the upper layer can finely intercept and accurately filter pine needles and fallen leaves. The medium quartz sand filter layer and the coarse gravel filter layer can gradually disperse the water flow pressure, while the pebble filter layer further enhances the water seepage performance and stability, while providing good hydraulic conditions for the outlet pipe. The outlet pipe is directly set in the pebble filter layer, so that the filtered water can be discharged smoothly, maintaining the stability of the outlet water quality and avoiding excessive pressure loss of the filter layer.

[0016] In an optional embodiment, the water outlet assembly further includes a plurality of water collecting pipes spaced apart along the axial direction of the water outlet pipe, and a plurality of water collecting holes are formed on the water collecting pipes.

[0017] Beneficial Effects

[0018] By setting up multiple water collecting pipes at intervals along the axial direction of the water outlet pipe and opening multiple water collecting holes on the water collecting pipes to collect water filtered by graded filter materials, this multi-point water collection method reduces the dependence on a single water outlet pipe, effectively reduces the water flow pressure at a single water outlet point, avoids the problem of water outlet pipe blockage caused by excessive water flow pressure at a local location, and achieves a more uniform and efficient water flow collection function. At the same time, the arrangement of multiple water collecting pipes expands the collection range of filtered water and significantly improves the hydraulic balance capacity of the water outlet component. The setting of the water collecting holes enhances the uniformity of water flow distribution, ensuring that the filtered water can be discharged smoothly even when the filter component is running at a high flow rate.

[0019] In an optional embodiment, the water inlet assembly includes: a water inlet pipe and a water inlet channel, one end of the water inlet pipe is connected to the water intake river channel, and the other end is connected to the water inlet channel.

[0020] Beneficial Effects

[0021] One end of the water inlet pipe is connected to the water intake river to ensure the direct introduction of river water, while the other end is connected to the water inlet channel to provide a stable water source input for subsequent filtration and treatment. Large particles of soil and sand can be precipitated inside the water inlet channel to prevent large particles of impurities from entering the infiltration channel. The water inlet component can achieve efficient and flexible water flow guidance and preliminary treatment functions.

[0022] In an optional implementation, a second control valve is provided on the water inlet pipe.

[0023] Beneficial Effects

[0024] In this embodiment, the second control valve is provided on the water inlet pipe to adjust the water inlet flow, so that the device can maintain stable operation when the flow of mountain rivers fluctuates greatly, thereby enhancing the adaptability of the device. At the same time, the second control valve is adjusted to control the water flow to flush and clean the mud and sediment in the water inlet channel, thereby preventing the water inlet from being blocked due to excessive sedimentation in the water inlet channel, thereby ensuring the operation stability of the water inlet channel.

[0025] In an optional embodiment, a plurality of water inlet holes are provided on the water inlet channel, and each of the water inlet holes is provided with a grille.

[0026] Beneficial Effects

[0027] The arrangement of multiple water inlet holes increases the water intake area of ​​the infiltration channel, which can more evenly distribute the raw water into the infiltration channel, avoid the problem of excessive water flow impact caused by a single concentrated water inlet, and protect the structural integrity and infiltration efficiency of the graded filter material in the infiltration channel. By setting multiple water inlet holes on the water inlet channel and installing a grid at each water inlet hole, the initial interception ability of the water inlet component for debris in the raw water and the water flow guidance performance are further optimized.

[0028] In an optional embodiment, a first drainage pipe is further provided at one end of the water inlet channel away from the water inlet pipe.

[0029] Beneficial Effects

[0030] The setting of the first drainage pipe can effectively discharge the mud, sand, floating objects and other impurities deposited during the water intake process in a timely manner, avoid the accumulation of these debris in the water intake channel and cause water intake blockage, and ensure the continuous smoothness of water flow and water intake efficiency. By setting the first drainage pipe at the end of the water intake channel away from the water intake pipe, the debris discharge capacity and operation stability of the water intake channel are further improved.

[0031] In an optional embodiment, the overflow assembly includes an overflow channel, a plurality of overflow holes are arranged at intervals on the overflow channel, and the overflow channel is arranged on the opposite side of the water inlet assembly.

[0032] In an optional embodiment, a second drainage pipe is provided at one end of the overflow channel.

[0033] Beneficial Effects

[0034] The pine needles and other small debris floating on the surface of the graded filter material are driven by the water flow to flow into the overflow channel through the overflow hole, preventing the graded filter material in the infiltration channel from being blocked. The interval setting of multiple overflow holes helps to evenly distribute the water flow and avoid overflow imbalance caused by excessive local water flow. At the same time, when the raw water flow is too large and the water storage in the infiltration channel is too much, it can be discharged in time through the overflow hole, overflow channel and second drainage pipe.

[0035] In an optional embodiment, a sunshade is also provided on the top of the infiltration channel.

[0036] Beneficial Effects

[0037] By setting up a sunshade on the top of the infiltration channel, the impact of direct sunlight on the graded filter material can be effectively reduced, avoiding the growth of algae or other microorganisms caused by light, thereby ensuring the long-term permeability and filtration effect of the graded filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a front view of a mountain river water intake, filtering and processing device according to an embodiment of the present invention;

[0040] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A;

[0041] Figure 3It is a top view of a mountain river water intake, filtration and treatment device according to an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] 11. water inlet pipe, 111. second control valve, 12. water inlet channel, 121. grille, 13. first drainage pipe;

[0044] 21. infiltration channel, 22. graded filter material, 221. fine quartz sand filter material layer, 222. medium quartz sand filter material layer, 233. coarse gravel filter material layer, 224. pebble filter material layer;

[0045] 31. water outlet pipe, 311. first control valve, 32. water collecting pipe;

[0046] 41. overflow channel, 411. overflow hole, 42. second drainage pipe;

[0047] 5. Shade. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0049] Combine the following Figures 1 to 3 , describing an embodiment of the present invention.

[0050] According to an embodiment of the present invention, on the one hand, a mountain river water intake and filtration treatment device is provided, comprising: an inlet assembly, a filter assembly, an outlet assembly and an overflow assembly. The filter assembly comprises: an infiltration channel 21 and a graded filter material 22, the inlet assembly is connected to the infiltration channel 21 through an inlet hole, and the graded filter material 22 is arranged at the bottom of the infiltration channel 21; the outlet assembly is arranged at the bottom of the graded filter material 22, the outlet assembly comprises an outlet pipe 31 and a first control valve 311, one end of the outlet pipe 31 extends out of the infiltration channel 21, and the first control valve 311 is arranged on the outlet pipe 31; the overflow assembly is connected to the infiltration channel 21 through an overflow hole 411, and the overflow hole 411 is located higher than the inlet hole.

[0051] Specifically, Figure 3As shown, the shape of the infiltration channel 21 is generally rectangular, and the aspect ratio of the infiltration channel 21 is greater than 2, so as to ensure the uniformity of water inlet and water distribution. The water inlet assembly and the overflow assembly are respectively arranged on both sides of the infiltration channel 21. The water inlet assembly first completes the water intake work of the river water flow, and the raw water flows into the water inlet assembly and then flows into the infiltration channel 21 through the water inlet. A graded filter material 22 is arranged at the bottom of the infiltration channel 21, and the filtration speed is less than 0.5m / h. The raw water is filtered by the graded filter material 22, and the graded filter material 22 can filter the impurities in the raw water to improve the purity of the raw water. After being filtered by the graded filter material 22, the water flow is collected and discharged through the outlet pipe 31. A first control valve 311 is arranged on the outlet pipe 31, which is used to adjust and control the flow rate of the outlet pipe 31 to ensure the stable discharge of the water flow.

[0052] During the use of the filtration treatment device, floating debris such as pine needles and fallen leaves need to be processed regularly to prevent these debris from accumulating in the graded filter material 22. The first control valve 311 controls the outflow flow of the water outlet pipe 31 to hold back the water level in the high infiltration channel 21, so that the pine needles and fallen leaves floating on the water surface in the infiltration channel 21 flow through the overflow hole 411 into the overflow assembly.

[0053] The device can filter raw water and remove impurities carried in the raw water. Moreover, floating debris such as pine needles and fallen leaves can be regularly processed through the overflow assembly to prevent them from accumulating in the graded filter material 22 or entering the water outlet pipe 31, thereby ensuring good filtering effect and long-term stability of the graded filter material 22.

[0054] In some embodiments, the water inlet assembly includes: a water inlet pipe 11 and a water inlet channel 12 , wherein one end of the water inlet pipe 11 is connected to the water intake river channel, and the other end is connected to the water inlet channel 12 .

[0055] The water inlet channel 12 is arranged on one side corresponding to one of the long sides of the infiltration channel 21. The water in the river enters the water inlet channel 12 through the water inlet pipe 11, and then enters the infiltration channel 21 from the water inlet channel 12 through the water inlet hole. The water inlet assembly can provide a stable water source input for the infiltration channel. The water inlet channel 12 can further guide and preliminarily process the water flow before it enters the infiltration channel 21, and can precipitate large particles of soil and sediment, prevent large particles of impurities from entering the infiltration channel 21, and play a preliminary filtering role for the river water in the water inlet infiltration channel 21.

[0056] In some embodiments, a second control valve 111 is provided on the water inlet pipe 11 .

[0057] The second control valve 111 is preferably a stop valve. The second control valve 111 is used to adjust the raw water flow and flow rate. The water intake can be accurately controlled according to actual needs to ensure that the filtration treatment device can operate stably under different hydrological conditions. Generally speaking, in order to ensure that the water intake flow rate can bring sand to the bottom of the water channel 12, it is necessary to adjust the second control valve 111 to ensure that the water flow rate in the water inlet channel 12 is greater than 0.6m / s. In addition, the second control valve 111 is a normally open valve and is only closed when the filtration treatment device is overhauled.

[0058] Furthermore, a water cyclone desander may be provided on the water inlet pipe 11 , and the raw water may first be desandered by the water cyclone desander before entering the water inlet channel 12 .

[0059] In some embodiments, a plurality of water inlet holes are provided on the water inlet channel 12 , and each water inlet hole is provided with a grille 121 .

[0060] The water inlet channel 12 is evenly spaced along its length, and a grid 121 is installed at each water inlet hole. The design of multiple water inlet holes can evenly distribute the water flow, balance the speed and pressure of the water flow entering the infiltration channel 21, and thus reduce the impact of local water flow impact on the filtration system.

[0061] The grille 121 is mainly used to intercept larger particles of debris such as sand, and plays a role in preliminary filtration and water flow regulation. In this embodiment, the grille 121 is arranged in the water inlet channel 12 with a gap of 10 mm and a bar width of 10 mm. In addition, in order to prevent the sand at the bottom of the water inlet channel 12 from entering the infiltration channel 21, the bottom of the grille 121 is 30 cm higher than the bottom of the water inlet channel 12.

[0062] In some embodiments, a first drainage pipe 13 is further provided at one end of the water inlet channel 12 away from the water inlet pipe 11 .

[0063] The setting of the first drainage pipe 13 enables the sand and other solid impurities deposited at the bottom of the inlet channel 12 to be effectively discharged during the water intake process. Especially in the case of rainfall or large water flow, a large amount of sediment may accumulate in the inlet channel 12. The first drainage pipe 13 provides an effective impurity discharge channel to ensure that the sand in the inlet channel 12 is removed in time.

[0064] In some embodiments, the graded filter material 22 includes: a fine quartz sand filter material layer 221 , a medium quartz sand filter material layer 222 , a coarse gravel filter material layer 223 and a pebble filter material layer 224 arranged in sequence from top to bottom, and the outlet pipe 31 is arranged in the pebble filter material layer 224 .

[0065] The filter material layers in the graded filter material 22 are filtered in multiple stages from top to bottom with a filtering accuracy from fine to coarse. Specifically, the effective particle size of the fine quartz sand layer is d10 = 2-4 mm, the filter material particle size unevenness coefficient K80 < 1.5, and the filter layer thickness is 0.4 m; the effective particle size of the medium quartz sand layer is d10 = 6-8 mm, the filter material particle size unevenness coefficient K80 < 1.5, and the filter layer thickness is 0.2 m; the effective particle size of the coarse gravel layer is d10 = 10-20 mm, and the filter layer thickness is 0.2 m; the effective particle size of the pebble filter layer is d10 = 30-50 mm, and the filter layer thickness is 0.6 m. The fine quartz sand layer is mainly used to filter tiny impurities such as pine needles and fallen leaves in the water, the medium quartz sand layer and the coarse gravel layer can gradually disperse the water flow pressure, and the pebble filter layer can provide a good water flow channel for filtered water. The outlet pipe 31 is arranged in the pebble filter layer 224 to ensure that the filtered water can flow out smoothly through the outlet pipe 31.

[0066] By controlling the outflow flow rate of the outlet pipe 31 through the first control valve 311, the water level in the infiltration channel 21 can be raised. When the water level in the infiltration channel 21 reaches the overflow hole 411, floating objects such as pine needles and fallen leaves on the water surface will flow into the overflow channel 41 through the overflow hole 411 with the water flow, thereby avoiding the accumulation of floating objects such as pine needles and fallen leaves in the infiltration channel 21 to cause blockage and affect the permeability of the water flow.

[0067] In some embodiments, a sunshade 5 is further provided on the top of the infiltration channel 21 .

[0068] The sunshade 5 is arranged on the top of the infiltration channel 21 to reduce the influence of direct sunlight on the graded filter material 22. The sunshade 5 can effectively reduce the light intensity in the infiltration channel 21 to avoid the growth of algae and other microorganisms caused by excessive light. In addition, the sunshade 5 can also reduce the interference of the external environment on the system, such as preventing the entry of dust, debris or animals, and further ensure the cleanliness and efficient operation of the filter assembly.

[0069] In some embodiments, the water outlet assembly further includes a plurality of water collecting pipes 32 axially spaced apart from each other along the water outlet pipe 31 , and a plurality of water collecting holes are formed on the water collecting pipes 32 .

[0070] The outlet pipe 31 is arranged in the pebble filter layer 224 and is arranged on the side of the infiltration channel 21 away from the infiltration channel 12. One end of the outlet pipe 31 extends out of the infiltration channel 21 to supply water to the outside, and the outlet direction of the outlet pipe 31 is opposite to the inlet direction of the inlet pipe 11, so as to achieve the same arrangement, close water loss and uniform water distribution. A plurality of water collecting pipes 32 are also arranged in the pebble filter layer 224, and the axial direction of the water collecting pipe 32 is perpendicular to the axial direction of the outlet pipe 31, and a plurality of water collecting holes are opened on the pipe wall of the water collecting pipe 32 to collect filtered water. The filtered water is collected to the outlet pipe 31 through the water collecting pipe 32 and then discharged out of the device. Preferably, the outlet pipe and the water collecting pipe 32 are both made of stainless steel SUS304.

[0071] This design disperses the water flow convergence points and avoids excessive pressure at a single water outlet. The setting of multiple water collection holes improves the water collection efficiency and the water outlet stability of the water outlet pipe 31, especially in the case of large water flow, it can still maintain the efficient operation of the water outlet component, prevent water backflow, ensure uniform water flow distribution, and reduce the problem of local blockage or poor water flow in the water outlet pipe 31.

[0072] In some embodiments, the overflow assembly includes an overflow channel 41 , on which a plurality of overflow holes 411 are spaced apart, and the overflow channel 41 is disposed on the opposite side of the water inlet assembly.

[0073] The shape of the overflow channel 41 is similar to that of the inlet channel 12, and the two are arranged oppositely. A plurality of overflow holes 411 are arranged at intervals on the overflow channel 41, and the bottom of the overflow hole 411 is also higher than the bottom of the overflow channel 41. The main purpose of the overflow assembly is to collect floating debris such as pine needles and fallen leaves carried by the raw water, and when the water storage capacity in the infiltration channel 21 is too large or too much raw water flows in, the excess water can be discharged to prevent the excessive water in the infiltration channel 21 from affecting the filtration quality. A plurality of overflow holes 411 are arranged at intervals in the same plane of the overflow channel 41, and the bottom mark height of the overflow hole 411 should be 10 cm higher than the filtration water level to ensure that the water flow can be discharged smoothly through the overflow hole 411 to avoid pressure concentration or water backflow caused by excessive local water level. Pine needles, fallen leaves and other debris floating on the top of the filter material layer of the infiltration channel 21 are driven by the water flow to flow from the overflow hole 411 into the overflow channel 41 for treatment to prevent the filter material layer in the infiltration channel 21 from being blocked.

[0074] In some embodiments, a second drainage pipe 42 is disposed at one end of the overflow channel 41 .

[0075] A second drainage pipe 42 is provided at one end of the overflow channel 41, and the second drainage pipe 42 is located on the same side as the first drainage pipe 13. The provision of the second drainage pipe 42 further optimizes the discharge efficiency of the overflow water, and the second drainage pipe 42 provides a drainage channel for the overflow channel 41, ensuring that the overflow water and pine needles, fallen leaves and other debris in the infiltration channel 21 can flow out quickly and smoothly, and preventing the overflow channel 41 from having too high a water level or too much water accumulation, resulting in water backflow.

[0076] The mountain river water intake and filtration treatment device provided in this embodiment is described as follows:

[0077] The water inlet pipe 11 can introduce the raw water from the water intake river into the water inlet channel 12. In the water inlet channel 12, the raw water passes through the grid 121 to perform preliminary filtration on large particles such as sand.

[0078] After flowing in the water inlet channel 12 and being evenly distributed through the water inlet, the water flows into the infiltration channel 21 in the filter assembly. The bottom of the infiltration channel 21 is paved with graded filter material 22, and the water flows through the graded filter material 22 for multi-stage filtration. During filtration, the water level above the graded filter material 22 is not less than 30 cm.

[0079] The filtered water is collected by the water collecting pipe 32, and then merged into the water outlet pipe 31, and discharged from the device through the water outlet pipe 31. The first control valve 311 is installed on the water outlet pipe 31, which can adjust the water outlet flow of the water outlet pipe 31.

[0080] During the filtration process, the water level in the high infiltration channel 21 can be controlled by the first control valve 311, so that small debris (such as pine needles, fallen leaves, etc.) floating on the water surface in the infiltration channel 21 can flow through the overflow hole 411 into the overflow channel 41 for collection, and then be discharged through the second drainage pipe 42 provided at one end of the overflow channel 41.

[0081] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A mountain river water intake filtration treatment device, characterized in that: include: Water inlet assembly; A filter assembly, the filter assembly comprising: an infiltration channel (21) and a graded filter material (22), the water inlet assembly being connected to the infiltration channel (21) via a water inlet hole, and the graded filter material (22) being arranged at the bottom of the infiltration channel (21); a water outlet component, the water outlet component being arranged at the bottom of the graded filter material (22), comprising a water outlet pipe (31) and a first control valve (311), one end of the water outlet pipe (31) extending out of the infiltration channel (21), and the first control valve (311) being arranged on the water outlet pipe (31); An overflow component is connected to the infiltration channel (21) through an overflow hole (411), and the overflow hole (411) is located higher than the water inlet hole.

2. The mountain river water intake, filtration and treatment device according to claim 1, characterized in that: The graded filter material (22) comprises: a fine quartz sand filter material layer (221), a medium quartz sand filter material layer (222), a coarse gravel filter material layer (223) and a pebble filter material layer (224) arranged in sequence from top to bottom, and the water outlet pipe (31) is arranged on the pebble filter material layer (224).

3. The mountain river water intake, filtration and treatment device according to claim 1, characterized in that: The water outlet assembly further comprises a plurality of water collecting pipes (32) arranged at intervals along the axial direction of the water outlet pipe (31), and a plurality of water collecting holes are provided on the water collecting pipes (32).

4. The mountain river water intake, filtration and treatment device according to claim 1, characterized in that: The water inlet assembly comprises: a water inlet pipe (11) and a water inlet channel (12); one end of the water inlet pipe (11) is connected to a water intake river, and the other end is connected to the water inlet channel (12).

5. The mountain river water intake, filtration and treatment device according to claim 4, characterized in that: The water inlet pipe (11) is provided with a second control valve (111).

6. The mountain river water intake, filtration and treatment device according to claim 4, characterized in that: The water inlet channel (12) is provided with a plurality of water inlet holes, and a grid (121) is provided at the water inlet holes.

7. The mountain river water intake, filtration and treatment device according to claim 4, characterized in that: A first drainage pipe (13) is also provided at one end of the water inlet channel (12) away from the water inlet pipe (11).

8. The mountain river water intake, filtration and treatment device according to claim 1, characterized in that: The overflow assembly comprises an overflow channel (41), a plurality of overflow holes (411) are arranged at intervals on the overflow channel (41), and the overflow channel (41) is arranged on the opposite side of the water inlet assembly.

9. The mountain river water intake, filtration and treatment device according to claim 8, characterized in that: A second drainage pipe (42) is provided at one end of the overflow channel (41).

10. The mountain river water intake, filtering and treatment device according to any one of claims 1 to 9, characterized in that: A light-shielding shed (5) is also provided on the top of the infiltration channel (21).

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