CN111335402B - Automatic water taking device for floating mushroom head and construction method thereof - Google Patents
Automatic water taking device for floating mushroom head and construction method thereof Download PDFInfo
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- CN111335402B CN111335402B CN202010137037.4A CN202010137037A CN111335402B CN 111335402 B CN111335402 B CN 111335402B CN 202010137037 A CN202010137037 A CN 202010137037A CN 111335402 B CN111335402 B CN 111335402B
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- E03—WATER SUPPLY; SEWERAGE
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Abstract
The invention discloses an automatic water taking device for floating mushroom heads and a construction method thereof, wherein the device comprises a mushroom head water taking head, a filling floating body, an inclined plate expansion device, a turbidity sensing device and an automatic opening and closing valve; wherein, the mushroom head water taking head comprises a water collecting bucket and a water outlet pipe communicated with the bottom of the water collecting bucket; the filling floating bodies are fixed at the circumferential direction of the water collecting hopper and the central position of the bottom; the automatic opening and closing device comprises a plurality of inclined plate expansion devices, a turbidity sensing device, an automatic opening and closing valve, a controller and a controller, wherein the inclined plate expansion devices are uniformly arranged at a water inlet at the top of the water accumulation hopper in the circumferential direction; the mushroom head water taking head part takes water as a center, and the water flows into the water collecting well through the water outlet pipe after entering the water collecting hopper. The construction method is suitable for local conditions and is convenient for field construction operation.
Description
Technical Field
The invention belongs to the field of water supply source engineering, and particularly relates to an automatic water taking device for floating mushroom heads and a construction method thereof.
Background
The structures for taking water from surface water are generally classified into fixed type, movable type, and structures for taking water from shallow rivers in mountainous areas, the fixed type is classified into shoreside type, riverbed type, and sluice type, the movable type is classified into cable car type, pontoon type, etc., and the structures for taking water from shallow rivers in mountainous areas are classified into bottom fence type and low dam type. The underground water taking structure comprises a pipe well, a large-mouth well, a radiation well, an infiltration canal and the like.
In shallow river sections of mountainous areas, the influence of flood level change and sand content change causes the turbidity of raw water obtained by surface water taking structures to suddenly rise and the water quality to fluctuate greatly, and the traditional water taking structures such as a large-mouth well, a radiation well, an infiltration channel and the like have the defects that a filter material layer is easy to damage and run off, the water quality is deteriorated, the water yield is gradually reduced, the service life is finally shortened and the like.
At present, a mushroom head water taking device is mainly used as a device for collecting surface water, the surface water is rarely collected, meanwhile, the taken raw water is subjected to in-situ treatment, and the taken raw water is turbid and has poor water quality when the sand content of the raw water is large in the flood season of rivers and lakes, so that the operation management difficulty and the cost of a subsequent water purification treatment structure are greatly increased; the mushroom head water taking device which can carry out in-situ automatic pre-sedimentation treatment according to the quality of raw water is lacked.
Disclosure of Invention
The invention aims to provide an automatic water taking device with a floating mushroom head and an installation method thereof, and aims to solve the problems of turbidity of taken raw water, large water quality fluctuation and the like caused by river water level and water quality change in flood season of a mountain area when the traditional surface water taking structure, a large-opening well, a radiation well, an infiltration channel and other traditional underground water taking structures are applied to the mountain area.
The invention is realized by adopting the following technical scheme:
an automatic water taking device for floating mushroom heads comprises a mushroom head water taking head, a filling floating body, an inclined plate expansion device, a turbidity sensing device and an automatic opening and closing valve; wherein the content of the first and second substances,
the mushroom head water taking head comprises a water collecting bucket and a water outlet pipe communicated with the bottom of the water collecting bucket; the filling floating bodies are fixed at the circumferential direction of the water collecting hopper and the central position of the bottom;
the automatic opening and closing device comprises a plurality of inclined plate expansion devices, a turbidity sensing device, an automatic opening and closing valve, a controller and a controller, wherein the inclined plate expansion devices are uniformly arranged at a water inlet at the top of the water accumulation hopper in the circumferential direction; the mushroom head water taking head part takes water as a center, and the water flows into the water collecting well through the water outlet pipe after entering the water collecting hopper.
The invention further improves that when the floating mushroom head automatic water taking device is arranged on the water surface, the floating mushroom head automatic water taking device can float and move on the water surface, and the submerging depth is 2/3 of the whole device.
The invention is further improved in that the water accumulation hopper comprises a cuboid and an inverted rectangular pyramid which are provided with hollow cavities and integrally formed from top to bottom.
The invention is further improved in that the periphery of the water collecting bucket is respectively provided with a sloping plate expansion device which is a first sloping plate expansion device, a second sloping plate expansion device, a third sloping plate expansion device and a fourth sloping plate expansion device.
The invention is further improved in that each inclined plate expansion device of the inclined plate expansion device comprises an expandable inclined plate group, a pneumatic jack and a push-pull rod; wherein the content of the first and second substances,
scalable swash plate group is including parallel arrangement's first scalable swash plate, the scalable swash plate of second, the scalable swash plate of third, the scalable swash plate of fourth, the scalable swash plate of fifth and the scalable swash plate of sixth, two scalable swash plates that link to each other are a set of, every scalable swash plate is telescopic bilayer structure, including fixed plate and the movable plate of suit in the fixed plate and can the relative fixed plate removal, the cylinder body on pneumatic jack is connected on the ponding fill, its end that stretches out is connected with the one end of push-and-pull rod, the other end of push-and-pull rod divide into three branch, every branch is connected with the movable plate of every scalable swash plate of group.
The invention is further improved in that the telescopic inclined plates incline outwards by 60 degrees, and a water retaining cover plate is arranged between the tops of two adjacent telescopic inclined plates.
The invention has the further improvement that the fixed plate of the telescopic sloping plate is 0.8m long, the moving plate is 0.7m long, the shortest length of the telescopic sloping plate is 0.8m, the longest length of the telescopic sloping plate reaches 1.3m, and the telescopic moving length is 0.5 m; the edge of the fixed plate is provided with a clamping groove for storing the movable plate.
The invention has the further improvement that when the turbidity of the water in the water accumulation hopper is more than 5NTU, the turbidity sensing device adjusts the inclined plate expansion device to extend; the settling velocity of the particles entering the settling zone from the most unfavorable point is taken to be u0，u0The expression of (a) is:
the sinking speed in the raw water is less than u0The total removal rate of the particles with different settling velocities is equal to the sum of the removal rates of the particles, and all settling velocities are less than u0The total particle removal rate of (a) should be:
sinking speed is more than or equal to U0Has been totally removed, and has a weight ratio of 1-p to the total particles0Thus, the total removal P of the settling zone is:
in the formula: p is a radical of0All settling velocities are less than the cut-off velocity u0The weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
u0-retention velocity in the sedimentation zone, or critical sedimentation velocity in the sedimentation tank, mm/s;
ui-the sinking speed is less than the cut-off speed u0The settling velocity of a certain particle of (2), mm/s;
piall settling velocities are less than uiThe weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
dpi-sinking velocity equal to uiThe weight of the particles accounts for the weight ratio of all the particles in the inlet water;
the operation of the automatic water taking device for the floating mushroom head is driven by a turbidity sensing device above the center of the water accumulation hopper, when raw water enters the water accumulation hopper, the turbidity sensing device in the water accumulation hopper detects the turbidity of the treated water, the turbidity sensing device converts a turbidity signal within a turbidity range of +/-0.5 NTU into an electric signal and transmits the electric signal to a controller, and a singlechip control system is arranged in the controller; firstly, the turbidity sensing device fetches water under the state that the length of the telescopic inclined plate is 0.8m, if the turbidity sensing device detects that the water inlet turbidity of the water accumulation hopper is less than 4.5NTU, the controller does not start a control switch, the air pressure jack does not stretch, and the original state is kept for fetching water; when the inlet water turbidity of the water accumulation hopper is increased, the inlet water turbidity detected by the turbidity sensing device is more than 5.5NTU, the telescopic inclined plate with the length of 0.8m does not meet the turbidity removal requirement, and the switch is controlled by the singlechip to be opened so that the air pressure jack is pushed and extended; the telescopic sloping plate is divided into five gears, and the telescopic length of each gear is 0.1 m; after adjusting the first gear, the telescopic inclined plate can extend by 0.1m, the turbidity sensing device keeps running in the state when the readings tend to be stable, if the readings are within the range of 4.5-5.5NTU, if the readings are more than 5.5NTU, the controller continues to control the air pressure top to push and extend, the second gear is extended, and the like until the fifth gear is reached; when the water level is at the fifth gear, if the water inlet turbidity of the water accumulation hopper is still far more than 8NTU, the controller stops running, the turbidity sensing device transmits a signal to the automatic opening and closing valve, and the automatic opening and closing valve is closed to stop water taking; when the water accumulation bucket is lower than 4.5NTU, the controller controls the air pressure top to contract until the turbidity in the water accumulation bucket is not higher than 4.5NTU, and the previous gear is preferentially the next gear, and when the air pressure top is completely withdrawn, if the water inlet turbidity of the water accumulation bucket is not higher than 4.5NTU, the state is kept to operate.
A construction method of an automatic water taking device for floating mushroom heads comprises the following steps:
and 4, connecting a water outlet pipe below the water taking head part of the mushroom head with a hose.
The invention has the further improvement that the invention also comprises a step 4, the water outlet pipe of the automatic water taking device of the floating mushroom head is connected with a water collecting well on the bank side, and then is lifted to a water using point by a pump.
Compared with the prior art, the invention has at least the following beneficial technical effects:
according to the automatic water taking device for the floating mushroom head, on one hand, a full-automatic sensing device is adopted for taking water, a turbidity meter is arranged for detection, the length of the inclined plate can be automatically adjusted according to the turbidity of the inlet water, so that the water inlet effect is ensured, the water taking quality is improved, and the pressure of subsequent turbidity removal and sand removal is reduced; on one hand, the floating body is adopted, so that the whole water taking device floats on the water surface, the height level of the device changes along with the height of the water surface and is not limited by the great change of the water level, the water taking range is increased, the water yield is greatly improved, and the water taking is fully ensured; on the other hand still is provided with the automatic start-stop valve, and when external quality of water turbidity was too high, the valve can be closed, prevented that high turbidity water from getting into whole pipeline, had higher economic benefits, had certain realistic meaning and using value to rationally adopting mountain area water intaking.
The invention provides a construction method of an automatic water intake device with floating mushroom heads, the central position of the automatic water intake device with floating mushroom heads is a square water collecting bucket, the bottom of the funnel is connected with a water outlet pipe, the corners below a water inlet pipe are connected by a hose, a connecting transverse long pipe is connected with a water collecting well, four groups of inclined plates with different sizes are respectively arranged around the square of the water collecting bucket, the inclined angle is 60 degrees, the edge of the innermost side of each group of inclined plates is connected with the edge of the water collecting bucket, triangular water retaining cover plates are arranged at four corners and connected with each inclined plate at two sides, so that water flow is ensured to enter the water inlet pipe from the inclined plates, the function of fixing the inclined plates is simultaneously realized, two ends of the lower edge of each group of inclined plates are connected with two adjacent groups of inclined plates, the inclined plates are ensured to be vertically spaced at certain intervals, and further the good water intake treatment effect, can get into the ponding fill by oneself in order to guarantee the rivers, set up square support directly over four angles of ponding fill, including 4 horizontal poles, utilize the electronic atmospheric pressure top that a fixed weight of triangle-shaped stable structure is about 3.5kg on every horizontal pole, the atmospheric pressure top links to each other with the down tube, and then drives the expansion plate motion in the swash plate to adapt to different turbidity water sources, guarantee that the effluent turbidity is less than 5 NTU.
Automatic water taking device for floating mushroom headThe turbidity removal principle is similar to the sedimentation principle of a sloping plate sedimentation tank, the wet circumference of the water passing section is increased after the sloping plate is added in the water inlet area, the hydraulic radius is reduced, and the Reynolds number Re can be reduced to a great extent at the same horizontal flow velocity v, so that the turbulent motion of water is reduced, and sedimentation is promoted; when the turbidity of the water source area rises, the inclined plate is extended, and after the plate length L is extended, the characteristic settling velocity u of the particles which can be removed in percentage is increased0The method has the advantages that the removal rate is improved, the turbidity of the discharged water is reduced, the working condition that the turbidity of the obtained raw water is suddenly increased in the flood season of the river can be automatically adapted, and the turbidity of the obtained raw water is lower and the water quality fluctuation is smaller.
Drawings
FIG. 1 is a cross-sectional view of an automatic water intake device for floating mushroom head according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the automatic water intake device for floating mushroom head according to the embodiment of the present invention;
fig. 3 is a schematic view of a fixed connection between retractable sloping plates of an automatic water intake device for floating mushroom head according to an embodiment of the present invention, wherein fig. 3(a) is a top view of the retractable sloping plates, fig. 3(b) is a side view of the retractable sloping plates, and fig. 3(c) is a schematic view of a connection between a pneumatic ram and a push-pull rod;
fig. 4 is a schematic view of the telescopic linkage of the telescopic sloping plate of the automatic water intake device for floating mushroom head according to the embodiment of the present invention, wherein fig. 4(a) is an extended state of the telescopic sloping plate, and fig. 4(b) is a contracted state of the telescopic sloping plate.
Description of reference numerals:
1-a first inclined plate expansion device, 2-a second inclined plate expansion device, 3-a third inclined plate expansion device, 4-a fourth inclined plate expansion device, 5-an air pressure jack, 6-a water accumulation hopper, 7-a water outlet pipe, 8-a turbidity sensing device, 9-a push-pull rod, 10-a filling floating body, 11-an automatic opening and closing valve and 12-a water retaining cover plate.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1 and 2, an embodiment of the present invention provides an automatic water intake device for floating mushroom head, which is suitable for mountain areas and river zones with obvious water level variation and unstable turbidity, and comprises a mushroom head water intake head, a filling floating body 10, an inclined plate expansion device, a turbidity sensing device 8 and an automatic on-off valve 11; wherein, the mushroom head water taking head comprises a water collecting bucket 6 and a water outlet pipe 7 communicated with the bottom of the water collecting bucket 6; the filling floating body 10 is fixed at the circumferential direction and the bottom center position of the water collecting hopper 6; the automatic opening and closing device comprises a plurality of inclined plate expansion devices, a turbidity sensing device 8, an automatic opening and closing valve 11, a water outlet pipe 7, a water inlet pipe, a water outlet pipe, a water; the mushroom head water taking head part takes water as a center, and the water flows into the water collecting well through the water outlet pipe 7 after entering the water collecting hopper 6.
The water collecting bucket 6 comprises a cuboid and an inverted rectangular pyramid which are integrally formed from top to bottom and are provided with hollow cavities. The periphery of the water collecting bucket 6 is respectively provided with a sloping plate expansion device which is a first sloping plate expansion device 1, a second sloping plate expansion device 2, a third sloping plate expansion device 3 and a fourth sloping plate expansion device 4.
Each inclined plate expansion device comprises an expandable inclined plate group, a pneumatic jack 5 and a push-pull rod 9. The telescopic inclined plate group comprises a first telescopic inclined plate 1-1, a second telescopic inclined plate 1-2, a third telescopic inclined plate 1-3, a fourth telescopic inclined plate 1-4, a fifth telescopic inclined plate 1-5 and a sixth telescopic inclined plate 1-6 which are arranged in parallel, the telescopic inclined plates incline outwards by 60 degrees, two telescopic inclined plates are connected into a group, each telescopic inclined plate is of a telescopic double-layer structure and comprises a fixed plate and a movable plate which is sleeved in the fixed plate and can move relative to the fixed plate, a cylinder body of the air pressure top 5 is connected to the water collecting hopper 6, the extending end of the cylinder body is connected with one end of a push-pull rod 9, the other end of the push-pull rod 9 is divided into three branches, and each branch is connected with the movable. The swash plate telescoping device is driven by pneumatic jack 5, and flexible direction is relevant with the turbidity of intaking, and turbidity induction system 8 is used for detecting the water quality change above the inlet tube, and then controls the push-and-pull rod motion through the controller, automatic start and stop valve is under the swash plate is full flexible state, and turbidity induction system 8 detects when the turbidity of intaking still is greater than 5NTU, closes the inlet tube, stops the water intaking, the body is different according to the device material, and the packing volume is different, and its packing volume should make the water inlet be less than the surface of water 10-20cm, guarantees to intake.
When the turbidity of the water in the water accumulation hopper 6 is more than 5NTU, the turbidity sensing device 8 adjusts the inclined plate expansion device to extend; the settling velocity of the particles entering the settling zone from the most unfavorable point is taken to be u0，u0The expression of (a) is:
the sinking speed in the raw water is less than u0The total removal rate of the particles with different settling velocities is equal to the sum of the removal rates of the particles, and all settling velocities are less than u0The total particle removal rate of (a) should be:
the sinking speed is more than or equal to u0Has been totally removed, and has a weight ratio of (1-p) to the total particles0) Thus, the total removal P of the settling zone is:
in the formula p0All settling velocities are less than the cut-off velocityu0The weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
u0-ideal settling tank cut-off speed, or settling tank critical settling speed, mm/s;
ui-the sinking speed is less than the cut-off speed u0The settling velocity of a certain particle of (2), mm/s;
piall settling velocities are less than uiThe weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
dpi-sinking velocity equal to uiThe weight of the particles is based on the weight of the total particles in the influent.
The operation of the automatic water taking device for the floating mushroom head is driven by a turbidity sensing device 8 above the center of a water accumulation hopper 6, when raw water enters the water accumulation hopper 6, the turbidity sensing device in the water accumulation hopper 6 detects the turbidity of the treated water, the turbidity sensing device 8 converts a turbidity signal within a turbidity range of +/-0.5 NTU into an electric signal and transmits the electric signal to a controller, and a singlechip control system is arranged in the controller; firstly, the turbidity sensing device 8 fetches water under the state that the length of the telescopic inclined plate is 0.8m, if the turbidity sensing device 8 detects that the water inlet turbidity of the water accumulation hopper 6 is less than 4.5NTU at the moment, the controller does not start a control switch, the air pressure jack 5 does not stretch, and the original state is kept for fetching water; when the inlet water turbidity of the water accumulation hopper 6 is increased, the turbidity induction device 8 detects that the inlet water turbidity is larger than 5.5NTU, the telescopic inclined plate length is 0.8m and cannot meet the turbidity removal requirement, and the singlechip control switch is turned on to push and extend the air pressure jack 5; the telescopic sloping plate is divided into five gears, and the telescopic length of each gear is 0.1 m; after adjusting the first gear, the extension of the telescopic inclined plate is 0.1m, and the characteristic sedimentation velocity u of the sedimentation zone0Reduce the total removal rate of the particulate matters in the raw water due to u0Decreasing and increasing, wherein the turbidity of the outlet water of the precipitation zone is decreased, namely the turbidity of the inlet water of the water accumulation hopper 6 is decreased, the state operation is kept when the reading of the turbidity sensing device 8 tends to be stable, if the reading is in the range of 4.5-5.5NTU, if the reading is more than 5.5NTU, the controller continues to control the air pressure top 5 to push and extend, the second gear extension is carried out, and the like until the fifth gear is reached; when the water is in the fifth gear, if the inlet water turbidity of the water accumulation hopper 6 is still far more than 8NTU, the controller stops running, and the turbidity sensing device 8 transmits a signal to the automatic opening and closing valveThe door 11 automatically opens and closes the valve 11 to stop water taking; when the turbidity in the water accumulation bucket 6 is lower than 4.5NTU, the controller controls the air pressure top 5 to contract until the turbidity in the water accumulation bucket 6 is not higher than 4.5NTU, and the previous gear is preferred to the next gear, when the air pressure top 5 is completely withdrawn, if the water inlet turbidity of the water accumulation bucket 6 is not higher than 4.5NTU, the state operation is kept.
As shown in fig. 3 and 4, the embodiment of the invention provides a detailed structure for mounting a sloping plate of an automatic water taking device of a floating mushroom head.
In this embodiment, the parameters of the telescopic sloping plates are that the fixed plate is 0.8m long, the moving plate is 0.7m long, wherein the inlay length is 0.2m, the shortest telescopic sloping plate is 0.8m, the longest telescopic sloping plate is 1.3m, the telescopic moving length is 0.5m, the outer side of each telescopic sloping plate is 0.05m wider than the inner side left and right, the width of the innermost sloping plate is 1.0m, and the inner side sloping plate is 1.1m, 1.2m, 1.3m, 1.4m and 1.5m in sequence from inside to outside, and the four corners are provided with water blocking cover plates 12 to ensure that all the inlet water is obtained through the telescopic sloping plates and also play a role in fixing the telescopic sloping plates, and the detailed connection mode of the telescopic sloping plates is as shown in fig. 3 and; the inlet water turbidity is controlled to be less than 5NTU, the inclined plate does not extend at the moment, when the inlet water turbidity is increased, the turbidity sensing device transmits a signal, and the controller controls the push-pull rod to stretch the corresponding length to ensure the inlet water effect; the push-pull rod adopts three sections of 250mm +250mm strokes, the total stroke is 500mm, the total retraction length is 675mm, and the top of the push-pull rod is fixed on a bracket above the water inlet, and the lower end of the push-pull rod is connected with a telescopic inclined plate to ensure that the push-pull rod does not touch the water surface; when the automatic open-close valve is in a fully-telescopic state when the telescopic inclined plate is in a fully-telescopic state and the turbidity sensing device detects that the inlet water turbidity is still larger than 5 NTUs, the inlet pipe is closed and water taking is stopped. Has the functions of enlarging water intake range and reducing subsequent treatment pressure, and greatly improves water quality
The invention provides a construction method of an automatic water taking device for floating mushroom heads, which comprises the following steps:
and 4, connecting a water outlet pipe of the automatic water taking device with the floating mushroom head to a shore water collecting well, and lifting the water to a water using point by a pump.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. An automatic water taking device for floating mushroom heads is characterized by comprising a mushroom head water taking head, a filling floating body (10), an inclined plate expansion device, a turbidity sensing device (8) and an automatic opening and closing valve (11); wherein the content of the first and second substances,
the mushroom head water taking head comprises a water collecting bucket (6) and a water outlet pipe (7) communicated with the bottom of the water collecting bucket (6); the filling floating body (10) is fixed at the circumferential direction and the bottom center position of the water collecting hopper (6);
the water collecting device comprises a plurality of inclined plate expansion devices, a turbidity sensing device (8), an automatic opening and closing valve (11), a water outlet pipe (7), a controller and an automatic opening and closing valve (11), wherein the inclined plate expansion devices are uniformly arranged at a water inlet at the top of a water collecting hopper (6) in the circumferential direction, the turbidity sensing device (8) is arranged in the water collecting hopper (6), the automatic opening and closing valve (11) is arranged on the water outlet pipe (7), and the turbidity sensing device (8) is used for detecting the turbidity of water in the water collecting hopper (6), controlling the inclined plate expansion devices to perform expansion adjustment; the mushroom head water taking head part takes water as a center to enter, and the water flows into a water collecting well through a water outlet pipe (7) after entering a water collecting hopper (6);
the water collecting hopper (6) comprises a cuboid and an inverted rectangular pyramid which are provided with hollow cavities and integrally formed from top to bottom; the periphery of the water collecting bucket (6) is respectively provided with a sloping plate expansion device which is a first sloping plate expansion device (1), a second sloping plate expansion device (2), a third sloping plate expansion device (3) and a fourth sloping plate expansion device (4);
each inclined plate expansion device comprises an expandable inclined plate group, a pneumatic jack (5) and a push-pull rod (9); the water collecting bucket comprises a telescopic inclined plate group, wherein the telescopic inclined plate group comprises a first telescopic inclined plate (1-1), a second telescopic inclined plate (1-2), a third telescopic inclined plate (1-3), a fourth telescopic inclined plate (1-4), a fifth telescopic inclined plate (1-5) and a sixth telescopic inclined plate (1-6) which are arranged in parallel, the two connected telescopic inclined plates are in a group, each telescopic inclined plate is in a telescopic double-layer structure and comprises a fixed plate and a movable plate which is sleeved in the fixed plate and can move relative to the fixed plate, a cylinder body of a pneumatic jack (5) is connected to a water collecting bucket (6), an extending end of the cylinder body is connected with one end of a push-pull rod (9), the other end of the push-pull rod (9) is divided into three branches, and each branch.
2. The automatic water intake device of floating mushroom head according to claim 1, wherein the automatic water intake device of floating mushroom head is capable of floating and moving on the water surface when it is installed on the water surface, and the submerging depth is 2/3 of the whole device.
3. The automatic water intake device for floating mushroom head as claimed in claim 1, wherein the flexible inclined plates are inclined outward by 60 ° and a water-retaining cover plate (12) is further provided between the tops of two adjacent flexible inclined plates.
4. The automatic water intake device for floating mushroom head according to claim 1, wherein the fixed plate of the telescopic sloping plate is 0.8m long, the moving plate is 0.7m long, the shortest telescopic sloping plate is 0.8m, the longest telescopic sloping plate is 1.3m, and the length of telescopic moving is 0.5 m; the edge of the fixed plate is provided with a clamping groove for storing the movable plate.
5. An automatic water intake device with floating mushroom head as claimed in claim 1, characterized in that, when the turbidity of the water in the water bucket (6) is more than 5NTUThe turbidity sensing device (8) adjusts the inclined plate expansion device to extend; the settling velocity of the particles entering the settling zone from the most unfavorable point is taken to be u0，u0The expression of (a) is:
the sinking speed in the raw water is less than u0The total removal rate of the particles with different settling velocities is equal to the sum of the removal rates of the particles, and all settling velocities are less than u0The total particle removal rate of (a) should be:
sinking speed is more than or equal to U0Has been totally removed, and has a weight ratio of 1-p to the total particles0Thus, the total removal P in the settling zone is:
in the formula: p is a radical of0All settling velocities are less than the cut-off velocity u0The weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
u0-the retention velocity in the settling zone, or the critical settling velocity in the settling zone, mm/s;
ui-the sinking speed is less than the cut-off speed u0The settling velocity of a certain particle of (2), mm/s;
piall settling velocities are less than uiThe weight of the particles of (a) is in the weight ratio of all the particles in the influent water;
dpi-sinking velocity equal to uiThe weight of the particles accounts for the weight ratio of all the particles in the inlet water;
the operation of the automatic water taking device for the floating mushroom head is driven by a turbidity sensing device (8) above the center of a water accumulation hopper (6), when raw water enters the water accumulation hopper (6), the turbidity sensing device in the water accumulation hopper (6) detects the turbidity of the treated water, the turbidity sensing device (8) converts turbidity signals within a turbidity range of +/-0.5 NTU into electric signals to be transmitted to a controller, and a singlechip control system is arranged in the controller; firstly, the turbidity sensing device (8) fetches water under the state that the length of the telescopic inclined plate is 0.8m, if the turbidity sensing device (8) detects that the inlet water turbidity of the water accumulation hopper (6) is less than 4.5NTU, the controller does not start a control switch, the air pressure jack (5) does not stretch, and the original state is kept for fetching water; when the inlet water turbidity of the water accumulation hopper (6) is increased, the turbidity induction device (8) detects that the inlet water turbidity is more than 5.5NTU, the telescopic inclined plate length is 0.8m and cannot meet the turbidity removal requirement, and the singlechip controls the switch to be opened so that the air pressure jack (5) is pushed and extended; the telescopic sloping plate is divided into five gears, and the telescopic length of each gear is 0.1 m; after the first gear is adjusted, the telescopic inclined plate can extend by 0.1m, the reading of the turbidity sensing device (8) tends to be stable, if the reading is within the range of 4.5-5.5NTU, the state is kept to operate, if the reading is more than 5.5NTU, the controller continues to control the air pressure jack (5) to push and extend, the second gear is extended, and so on until the fifth gear is reached; when the water is in the fifth gear, if the inlet water turbidity of the water accumulation hopper (6) is still far more than 8NTU, the controller stops running, the turbidity sensing device (8) transmits a signal to the automatic opening and closing valve (11), the automatic opening and closing valve (11) is closed, and water taking is stopped; when the turbidity in the water accumulation hopper (6) is lower than 4.5NTU, the controller controls the air pressure top (5) to shrink until the turbidity in the water accumulation hopper (6) is not higher than 4.5NTU, and the previous gear is preferred to be the next gear, when the air pressure top (5) is completely retracted, if the water inlet turbidity of the water accumulation hopper (6) is not higher than 4.5NTU, the state is kept to operate.
6. The construction method of the floating mushroom head automatic water intake device according to claim 1, characterized by comprising the steps of:
step 1, finding a stable point capable of fixing an iron chain or a steel wire rope in advance at an unstable and easily-silted water taking point of a riverbed to connect a mushroom head water taking head, wherein the floating mushroom head automatic water taking device can move within a set range by considering the swing problem of a water outlet pipe (7);
step 2, when the automatic water taking device for the floating mushroom head is placed in a river or a reservoir, the quantity of the filling floating bodies (10) meets the requirement that the water inlet is submerged by 10-20cm from the external water surface;
step 3, fixedly connecting an inclined plate expansion device at the position of an inclined plate of the automatic water taking device for the floating mushroom head;
and 4, connecting a water outlet pipe (7) below the water taking head part of the mushroom head with a hose.
7. The method for constructing an automatic water intake device from floating mushroom head as claimed in claim 6, further comprising step 5, connecting the water outlet pipe of the automatic water intake device from floating mushroom head with a water collecting well on the bank side, and lifting the water outlet pipe to a water using point by a pump.
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| CN202010137037.4A CN111335402B (en) | 2020-03-02 | 2020-03-02 | Automatic water taking device for floating mushroom head and construction method thereof |
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| CN1086569A (en) * | 1992-10-31 | 1994-05-11 | 合肥工业大学 | Surface water and underground water transform new technology mutually |
| CN2479066Y (en) * | 2001-05-09 | 2002-02-27 | 赵同成 | Natural water storing device |
| CN101693152B (en) * | 2009-09-27 | 2016-02-24 | 北京科技大学 | The piece-rate system of a kind of tubule settling module, suspended particulate and separation method thereof |
| CN203877995U (en) * | 2014-06-12 | 2014-10-15 | 山东建筑大学 | Water taking and water purification integrated device for surface water source |
| CN204570805U (en) * | 2015-05-05 | 2015-08-19 | 宋晓轩 | Landscape lake water level automatic cycle adjusting device |
| CN105862982B (en) * | 2016-03-31 | 2018-03-13 | 大连久鼎生态流域治理开发有限公司 | Quickly-underground radial collector well technique is oozed in storage for rainwater or surface water |
| CN207356639U (en) * | 2017-10-22 | 2018-05-15 | 河北蓝江生物环保科技有限公司 | Inclined plate sedimentation pond inclined plate and inclined plate sedimentation pond |
| CN108002468A (en) * | 2017-11-14 | 2018-05-08 | 中电建水环境治理技术有限公司 | The method and system of polluted underground water are repaired using radial pattern arrangement horizontal transverse-pipe |
| CN210065374U (en) * | 2018-12-24 | 2020-02-14 | 中建水务环保有限公司 | Rotational flow inclined tube sedimentation system |
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