Water taking device with high efficiency of sand and floating object prevention

Abstract

The application discloses a high-efficiency sand and floating object preventing water taking device, which comprises a water taking head, an auxiliary pipeline and a water pump set, the shell of the water taking head is streamline-shaped and is arranged in a river channel, the curvature radius of the water-approaching end of the water taking head is larger than that of the water-following end, and the water taking head draws river water through the auxiliary pipeline and the water pump set; the high-efficiency sand and floating object preventing water taking device can prevent the water taking head from being blocked by silt, floating objects and algae, can ensure the water taking rate and safety, and can ensure that the water is clean and contains less impurities, so that the use requirement of the river channel water taking is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water supply technology, in particular to a high-efficiency sand and floating object preventing water intake device. BACKGROUND

[0002] At present, the main water intake head commonly used in water supply projects mainly comprises a horn pipe and a box type water intake head. The water intake head has simple structure and is easy to construct, but in actual operation, it is often silted with sand and floating objects, which causes operation and maintenance to be difficult and affects water source guarantee rate.

[0003] In actual application, there are also some water intake heads for preventing sand and floating objects, such as a mushroom type, a fish type cover and an inclined plate type water intake head, which have certain effects, but in complex river channels and serious soil erosion during flood season, they cannot guarantee normal operation of the water intake head.

[0004] In addition, in local micro-polluted water sources, algae and aquatic organisms in the water body are often fine in size, which also causes blockage of the water intake head. In the previous water intake head, the medicament adding method is simple and the mixture is not mixed, so the effect of inhibiting algae is poor, and the algae block the grating and the inside of the water intake head. Fine suspended solids and pollutants cannot be settled and removed, and the water intake will also affect the water intake cleaning quality, which is inconvenient to use. SUMMARY

[0005] The purpose of the present application is to solve the above problems and provide a high-efficiency sand and floating object preventing water intake device which can prevent sand, floating objects and algae from blocking the water intake head, can guarantee water intake rate and safety, has clean water intake, less impurities and meets the use requirements of river water intake.

[0006] To achieve the above purpose, the technical scheme of the present application is as follows: a high-efficiency sand and floating object preventing water intake device, comprising a water intake head, an auxiliary pipeline and a water pump set, the shell of the water intake head is streamlined and located in a river channel, the curvature radius of the water inlet end of the water intake head is greater than that of the water following end, and the water intake head draws river water through the auxiliary pipeline and the water pump set.

[0007] Preferably, a water intake pump station is arranged on the river bank, the water intake pump station comprises a water collecting well and a water pump set, and the auxiliary pipeline is laid under the riverbed.

[0008] Preferably, the auxiliary pipeline comprises a water inlet pipeline, a medicament adding pipeline and a sludge discharge pipeline, the water pump set comprises a water intake pump, a medicament adding pump and a sludge discharge pump, one end of the water inlet pipeline is connected to the water intake head, and the other end is connected to the water collecting well, one end of the medicament adding pipeline is arranged in the water intake head, and the other end is connected to the medicament adding pump, one end of the sludge discharge pipeline is connected to the water intake head, and the other end is connected to the sludge discharge pump.

[0009] Preferably, the water intake head comprises a grid, a baffle, an inclined pipe, a sludge discharge groove, a sand discharge hole and a partition plate, the partition plate is arranged in the water intake head, the baffle is arranged between the partition plate and the side wall of the water intake head, the sand discharge hole is arranged at the bottom of the partition plate, the grid gap width is 3-10 mm and is arranged at both sides of the water intake head, the inclined pipe is arranged between the two partition plates, and the sludge discharge groove is arranged below the water intake head.

[0010] Preferably, the upper part of the inclined pipe is further provided with two symmetrical separators, and the separators are arranged in opposite directions and inclined downward.

[0011] Preferably, the side wall of the water intake head and the outer baffle form a hetero-wave channel, the two baffles form a homo-wave channel, the bottom of the hetero-wave channel and the homo-wave channel are communicated, the inner baffle and the partition plate form a sinking channel, and the river water enters the water intake head in sequence through the hetero-wave channel, the homo-wave channel and the sinking channel.

[0012] Preferably, the hetero-wave channel is further provided with a dosing pipe, and the dosing pipe is fixed to the inner wall of the water intake head.

[0013] Preferably, the slope of the sludge discharge groove is not less than 60°, the head to the tail of the sludge discharge groove is provided with a slope not less than 1%, and the sludge is discharged to a sludge pool or a downstream river channel through a sludge pump after converging at the tail.

[0014] The application discloses a high-efficiency water intake device for preventing sand and floating objects, which comprises a water intake head, an auxiliary pipeline and a water pump set, the shell of the water intake head is streamline-shaped and is arranged in a river channel, the curvature radius of the water-approaching end of the water intake head is larger than that of the water-following end, and the water intake head draws river water through the auxiliary pipeline and the water pump set. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the water intake device in the application.

[0016] Figure 2 It is a structure schematic view of the water intake head in the application Figure One .

[0017] Figure 3 It is a structure schematic view of the water intake head in the application Figure Two .

[0018] Figure 4 It is a structure schematic view of the water intake head in the application Figure Three .

[0019] Figure 5A schematic diagram of the flow direction of water flow in the water intake head in the present application.

[0020] In the figure: 1, water intake head; 11, grid; 12, folded plate; 13, inclined pipe; 14, separator; 15, sludge discharge channel; 16, sand discharge hole; 17, partition; 2, auxiliary pipeline; 21, water inlet pipeline; 22, dosing pipeline; 23, sludge discharge pipeline; 3, water pump set; 31, water intake pump; 32, dosing pump; 33, sludge discharge pump; 4, water intake pump station; 5, water collecting well; 6, river channel. DETAILED DESCRIPTION

[0021] The present application will now be further described in detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams and only schematically illustrate the basic structure of the present application, and thus only show the components related to the present application.

[0022] Please refer to Figures 1-5 A high-efficiency sand and floating object preventing water intake device, comprising a water intake head 1, an auxiliary pipeline 2 and a water pump set 3, the shell of the water intake head 1 is streamlined and is located in a river channel 6, wherein the water intake head 1 is installed in the main stream of the river channel and is located at a certain water depth, the curvature radius of the water-approaching end of the water intake head 1 is greater than that of the water-following end, that is, the water flow of the water intake head 1 spreads out along the water-approaching surface head, the water flow condition is good, and the subsequent accumulation of silt and floating objects on the side surface of the shell can be avoided, and the water intake of the river channel is completed by the water intake head 1 through the auxiliary pipeline 2 and the water pump set 3.

[0023] In the present application, a water intake pump station 4 is provided on the bank of the river channel, the water intake pump station 4 comprises a water collecting well 5 and a water pump set 3, the auxiliary pipeline 2 is laid under the riverbed, wherein the auxiliary pipeline 2 comprises a water inlet pipeline 21, a dosing pipeline 22 and a sludge discharge pipeline 23, the water pump set 3 comprises a water intake pump 31, a dosing pump 32 and a sludge discharge pump 33, one end of the water inlet pipeline 21 is connected to the water intake head 1 and the other end is connected to the water collecting well 5, the water intake head 1 is connected to the water collecting well 5 through the water intake pump 31, one end of the dosing pipeline 22 is arranged in the water intake head 1 and the other end is connected to the dosing pump 32, one end of the sludge discharge pipeline 23 is connected to the water intake head 1 and the other end is connected to the sludge discharge pump 33.

[0024] The dosing pump 32 adds disinfectant and flocculant, the disinfectant is mainly used to remove microbial pollution such as algae, and the flocculant can enhance the removal effect of floating objects and silt, and the silt and other impurities in the water intake process are separated in the water intake head 1.

[0025] Specifically, the water intake head 1 comprises a grid 11, a baffle 12, an inclined pipe 13, a sludge discharge channel 15, a sand discharge hole 16 and a partition plate 17, the partition plate 17 is arranged in the water intake head 1, the baffle 12 on each side is arranged between the partition plate 17 and the side wall of the water intake head 1, the sand discharge hole 16 is arranged at the bottom of the partition plate 17, the grid 11 with a gap width of 3-10 mm is arranged on the two side surfaces of the water intake head 1, the inclined pipe 13 is arranged between the two partition plates 17, and the sludge discharge channel 15 is arranged below the water intake head 1. The water inlet pipeline 21 in the auxiliary pipeline is connected above the water intake head 1, the sludge discharge pipeline is arranged below the water intake head 1 (in the sludge discharge channel 15), and the upper portion of the inclined pipe 13 is further provided with two symmetrical separators 14, the separators 14 are oppositely arranged to form a triangular weir, and the solid-liquid separation is further realized.

[0026] In addition, the side wall of the water intake head 1 and the outer baffle 12 form a different wave channel, the two baffles 12 form a same wave channel, the bottom of the different wave channel and the same wave channel is communicated, the inner baffle 12 and the partition plate 17 form a sinking channel, and the river water enters the water intake head 1 in sequence through the different wave channel, the same wave channel and the sinking channel, and the dosing pipeline 22 is arranged in the different wave channel and fixed to the inner wall of the water intake head 1.

[0027] During the water intake process, the water intake pump 31 is operated, the river water enters the different wave channel from below the top cover after the operation, the water collection direction is from bottom to top when entering the different wave channel, which is opposite to the movement direction of the mud and floating objects, and the water flow direction is zigzag, so that the mud and floating objects are reduced to enter the water intake head 1; since the bottom of the different wave channel and the same wave channel is communicated, the water level in the different wave channel and the same wave channel is continuously raised, when the liquid level height reaches the top of the same wave channel, the river water will enter the sinking channel (the river water flow direction is specifically referred to Figure 5 );In this process, the water flow is divided into three sections, the first section is that the water enters the different wave channel, the second section is that the water enters the same wave channel, and the third section is that the water enters the sinking channel, wherein the water flow speed and direction are changed in the first section, only the direction is changed in the second section, and none of them is changed in the third section, and the water flow disturbance effect is from strong to weak; and the dosing pipeline 22 is arranged in the different wave channel, so as to further strengthen the water flow disturbance, promote the solid-liquid separation by strengthening the disturbance of the water body and the mud and pollutants, and after the separation, the mud is discharged into the sludge discharge channel 15 through the sand discharge hole 16 and the baffle 12; finally, the river water enters the water intake head 1, and then the liquid level is raised, the liquid level passes through the inclined pipe 13, the remaining small suspended solids and pollutants in the water body are deposited on the inclined pipe 13 due to the gravity effect, and then enter the sludge discharge channel 15, the water body passes through the inclined pipe 13 to enter the upper separation zone, the separation zone increases the sedimentation area, the solid-liquid separation is enhanced by the water inlet pipeline 21, the water quantity and water quality fluctuation when the water intake quantity is large is reduced by the separator 14, and finally the water body enters the top water inlet pipeline 21 in the top clean water zone.

[0028] The slope of the sludge discharge groove 15 is not less than 60°, and the head to the tail of the sludge discharge groove 15 is provided with a slope not less than 1%, and the sludge is discharged to a sludge pool or a downstream river channel through the sludge pump 33 and the sludge pipeline 23 after converging at the tail.

[0029] The dosing pipeline 22 is dosed according to the silt content and pollution degree of the water body, and the dosing is carried out in a multi-point dosing mode, a plurality of dosing branch pipes are arranged in the different wave channels of the baffle plate 12, the uniformity of the dosing of the medicament is ensured, the medicament can be selected from disinfectants and flocculants, the disinfectant is sodium hypochlorite, and the flocculant is PAC, the disinfectant is mainly used for removing microbial pollution such as algae, and the flocculant can enhance the removal effect of floating silt.

[0030] In the application, the water intake head 1 is divided into a sedimentation zone, a slant pipe zone, a separator and a clear water zone from bottom to top, impurities are precipitated in the sedimentation zone after water intake, and the precipitated impurities are discharged through a blowdown pipeline; the remaining small suspended solids and pollutants after precipitation are settled through the slant pipe in the slant pipe zone; the liquid level rises into the separation zone after settlement, and further separation is realized through the separator in the separation zone, and the water flow finally enters the clear water zone and enters the catch basin 5 from the water inlet pipeline 21.

[0031] Obviously, the above embodiments are only examples for clearly illustrating the application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the application.

Claims

1. A highly efficient water intake device for preventing sand and floating objects, characterized in that: The water intake head comprises a water intake head, an auxiliary pipeline and a water pump assembly. The shell of the water intake head is streamlined and is located in the river channel. The curvature radius of the water-facing end of the water intake head is larger than that of the downstream end. The water intake head draws river water through the auxiliary pipeline and the water pump assembly. A water intake pump station is provided on the bank of the river, the water intake pump station includes a water collection well and a water pump group, and the auxiliary pipeline is laid under the riverbed; The auxiliary pipeline includes a water inlet pipeline, a dosing pipeline and a mud discharge pipeline. The water pump group includes a water intake pump, a dosing pump and a mud discharge pump. One end of the water inlet pipeline is connected to the water intake head, and the other end is connected to the water collection well. One end of the dosing pipeline is arranged in the water intake head, and the other end is connected to the dosing pump. One end of the mud discharge pipeline is connected to the water intake head, and the other end is connected to the mud discharge pump. The water intake head includes a grid, a folding plate, an inclined pipe, a mud discharge trough, a sand discharge hole and a partition. The partition is arranged in the water intake head. The folding plate is in two groups and is arranged between the partition and the side wall of the water intake head. The sand discharge hole is arranged at the bottom of the partition. The grid gap width is 3-10mm and is arranged on both sides of the water intake head. The inclined pipe is arranged between the two partitions. The mud discharge trough is arranged below the water intake head. Two symmetrical separators are also provided above the inclined tube, and the separators are arranged to be inclined downward relative to each other; The side wall of the water intake head and the outer folded plate form a different wave channel, and a same wave channel is formed between the two folded plates. The different wave channel is connected to the bottom of the same wave channel. The inner folded plate and the partition form a sinking channel. The river water enters the water intake head through the different wave channel, the same wave channel and the sinking channel in sequence. A drug-adding pipeline is also provided in the abnormal wave channel, and the drug-adding pipeline is fixed on the inner wall of the water intake head.

2. The high-efficiency water intake device for preventing sand and floating objects according to claim 1 is characterized in that: The side slope of the sludge discharge trough is not less than 60°, and a slope of not less than 1% is set from the head to the tail of the sludge discharge trough. After the sludge is merged at the tail, it is discharged to the sludge pool or downstream river through the sludge discharge pump.

Images