CN114409189A - Mixed wetland clean system of initial stage rainwater and overflow water - Google Patents
Mixed wetland clean system of initial stage rainwater and overflow water Download PDFInfo
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- CN114409189A CN114409189A CN202210054319.7A CN202210054319A CN114409189A CN 114409189 A CN114409189 A CN 114409189A CN 202210054319 A CN202210054319 A CN 202210054319A CN 114409189 A CN114409189 A CN 114409189A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 308
- 239000010865 sewage Substances 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims description 26
- 239000002689 soil Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000012466 permeate Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 24
- 238000000746 purification Methods 0.000 abstract description 15
- 238000001556 precipitation Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- GUIJLPKNGJMXKV-AZUAARDMSA-N rod-188 Chemical compound C1=CC(C)=CC=C1S(=O)(=O)N1[C@@H]([C@H]2OC(=O)CC2)C2=CC=CC=C2CC1 GUIJLPKNGJMXKV-AZUAARDMSA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- FKLFBQCQQYDUAM-UHFFFAOYSA-N fenpiclonil Chemical compound ClC1=CC=CC(C=2C(=CNC=2)C#N)=C1Cl FKLFBQCQQYDUAM-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a mixed wetland purification system for initial rainwater and overflow water, which comprises a flow dividing and intercepting component (1), a reservoir (2), a horizontal flow artificial wetland (3), a vertical flow artificial wetland (4), a first water pump (5) and a second water pump (6); the interior of the diversion interception component is divided into a rain and sewage converging chamber and a water inlet chamber by an overflow weir (14), and the water inlet chamber is internally provided with a water inlet pipe (11), a filtering component (15) and a water outlet pipe (12) in sequence; a ball float valve (18) is arranged at the bottom of the overflow weir, and a rain and sewage discharge port (13) is arranged in the rain and sewage converging chamber; the rain and sewage discharge port is connected with a water storage pool through a first water pump, the water storage pool is connected with the horizontal flow artificial wetland through a second water pump, and the horizontal flow artificial wetland is connected with the vertical flow artificial wetland. The rainwater purification device can separate initial rainwater and unfiltered rainwater during overflowing through the overflow weir, the floating ball mounting chamber and the floating ball valve in the diversion interception component, and discharges the rainwater through the rainwater and sewage discharge port, and the rainwater is purified after precipitation and multistage filtration.
Description
Technical Field
The invention relates to a rainwater treatment system, in particular to a mixed wetland purification system for initial rainwater and overflow water.
Background
With the rapid development of urban and rural economy, the environmental pollution is more serious, and even the surrounding water environment is seriously threatened. China is a country with shortage of water resources, so that the collection, purification and reuse of rainwater plays an important promoting role in relieving the situation of water resource shortage. The initial rainwater dissolves harmful gases in the air in the early stage of rainfall and further scours roofs, floors, ditches and the like after falling to the ground, so that the initial rainwater contains a large amount of impurities and pollutants. In addition, the devices used for collecting rainwater, such as the sewage interception and drainage well in the prior art, are often provided with overflow ports, and when the rainwater flow is too large and the rainwater amount in the rainwater collection device exceeds a certain amount, the unfiltered overflow rainwater is directly discharged from the overflow ports, so that the secondary pollution to the environment is caused.
Disclosure of Invention
The invention aims to provide a mixed wetland purification system for initial rainwater and overflow water, which can separate and flow out the initial rainwater and unfiltered rainwater during overflow through an overflow weir, a floating ball mounting chamber and a floating ball valve in a flow dividing and intercepting component, and discharge the rainwater through a rainwater and sewage discharge port, and realize the purification of the rainwater after precipitation and multi-stage filtration.
The invention is realized by the following steps:
a mixed wetland purification system for initial rainwater and overflow water comprises a flow dividing and intercepting component, a reservoir, a horizontal flow artificial wetland, a vertical flow artificial wetland, a first water pump and a second water pump; an overflow weir is arranged in the flow dividing and intercepting component, the overflow weir divides the flow dividing and intercepting component into a rain and sewage converging chamber and a water inlet chamber, the tops of the rain and sewage converging chamber and the water inlet chamber are communicated, a water inlet pipe is arranged at the upper part of the water inlet chamber, a water outlet pipe is arranged at the lower part of the water inlet chamber, and a rain and sewage outlet is arranged at the bottom of the rain and sewage converging chamber; a filter assembly is arranged in the water inlet chamber and is positioned between the water inlet pipe and the water outlet pipe; the bottom of the overflow weir is provided with a ball float valve, and the rain and sewage converging chamber can be communicated with the water inlet chamber through the ball float valve; the rain and sewage discharge port is connected with the water inlet of the reservoir through the first water pump, the water outlet of the reservoir is connected with the water inlet of the horizontal flow artificial wetland through the second water pump, and the water outlet of the horizontal flow artificial wetland is connected with the water inlet of the vertical flow artificial wetland.
An initial rainwater outlet is formed at the bottom of the overflow weir, a floating ball mounting chamber is formed at the joint of the bottom of the water inlet chamber and the overflow weir, a floating ball valve is arranged on the floating ball mounting chamber, the floating ball valve is positioned below the water outlet pipe, and the floating ball mounting chamber can be communicated with the water inlet chamber through the floating ball valve; one end of the initial rainwater outlet is communicated with the floating ball mounting chamber, and the other end of the initial rainwater outlet is communicated with the rainwater and sewage converging chamber.
The floating ball valve comprises a valve body, a valve core, an end cover, a valve rod and a floating ball; the valve body is arranged on the floating ball mounting chamber, and a valve core accommodating cavity matched with the embedded valve core is formed in the valve body; a water inlet channel is formed on one side of the valve core accommodating cavity and is communicated with the water inlet chamber, a water outlet channel is formed at the bottom of the valve core accommodating cavity and is communicated with the floating ball mounting chamber, a water through hole is formed in the valve core, and two ends of the water through hole are respectively communicated with the water inlet channel and the water outlet channel; the other side opening of case holding chamber is connected with the case through end cover seal, the one end of valve rod, and the other end of valve rod runs through the end cover, and the valve rod is connected with the rotatable formula of end cover, and the floater is located the inlet chamber and is connected with the other end of valve rod through the connecting rod.
A backing ring and a sealing ring are arranged between the valve core and the end cover, the valve core is connected with the valve body in a sealing way through the sealing ring, and the end cover is detachably screwed with the valve body;
the valve body is detachably screwed with the floating ball mounting chamber, and a sealing washer is arranged at the joint.
The filter assembly comprises a driving device, a first filter screen, a second filter screen and a rotating shaft; a fixing ring is formed on the inner wall of the water inlet chamber in an annular manner, and the driving device is connected to the center of the fixing ring through a fixing rod; the first filter screen is arranged on the fixing ring, the second filter screen is arranged on the first filter screen in a stacked mode, the lower end of the rotating shaft is connected with the output end of the driving device, the upper end of the rotating shaft penetrates through the first filter screen and then is connected with the second filter screen, and the second filter screen can rotate above the first filter screen.
A fixing groove is formed on the fixing ring, a clamping part is arranged at the edge of the first filter screen, and the clamping part is fixedly clamped in the fixing groove;
the first filter screen and the second filter screen are of cambered surface structures with high middle parts and low periphery.
The horizontal flow constructed wetland comprises a first filter layer, a second filter layer, a third filter layer, a fourth filter layer and a water collection tank which are sequentially arranged along the water flow direction, wherein the water inlet of the first filter layer is communicated with the water outlet of the second water pump, and the water outlet of the water collection tank is communicated with the water inlet of the vertical flow constructed wetland; soil layers for planting plants are arranged on the first filter layer, the second filter layer, the third filter layer and the fourth filter layer;
the horizontal flow constructed wetland is of a fan-shaped structure, and a first filter layer, a second filter layer, a third filter layer, a fourth filter layer and a water collecting tank are sequentially arranged from the circumference to the circle center along the radial direction of the fan-shaped structure; a plurality of water inlets are formed in the top of the first filter layer at intervals, water inlet branch pipes are connected to the water inlets, the water inlet branch pipes are connected to one ends of the water inlet flow dividing pipes, and the other ends of the water inlet flow dividing pipes are connected with water outlets of the second water pumps.
The first filter layer and the second filter layer are separated by a partition plate, and a plurality of communication ports are formed at the lower part of the partition plate, so that the first filter layer is communicated with the second filter layer; the second filter layer and the third filter layer are separated by a partition plate, and a plurality of communicating ports are formed in the upper part of the partition plate, so that the second filter layer is communicated with the third filter layer; the third filter layer and the fourth filter layer are separated by a partition plate, and a plurality of communicating ports are formed at the lower part of the partition plate, so that the third filter layer is communicated with the fourth filter layer; the fourth filter layer is separated from the water collecting tank through a partition plate, and a plurality of water permeable holes are uniformly distributed in the partition plate.
The vertical flow constructed wetland comprises a first permeable layer, a second permeable layer, a third permeable layer, a fourth permeable layer, a soil covering layer, a water inlet groove and a water outlet groove; the water inlet groove and the water outlet groove are respectively arranged on two sides of the vertical flow constructed wetland, and the first permeable layer, the second permeable layer, the third permeable layer, the fourth permeable layer and the soil covering layer are sequentially arranged from bottom to top and are positioned between the water inlet groove and the water outlet groove; the water inlet of the water inlet tank is communicated with the water outlet of the water collecting tank of the horizontal flow artificial wetland, and the water outlet of the water inlet tank is communicated with the soil covering layer through the water distribution assembly; the water outlet groove is communicated with the first permeable layer.
The water distribution component comprises a fourth water pump, a water distribution pipe, a water distribution branch pipe and a spray head; the fourth water pump is arranged at the bottom of the water inlet tank, a water outlet of the fourth water pump is communicated with one end of a water distribution pipe, and the water distribution pipe is laid in the soil covering layer; the lower ends of the water distribution branch pipes are respectively connected to the water distribution pipes at intervals, and the upper ends of the water distribution branch pipes extend to the upper part of the soil covering layer and are connected with nozzles.
The invention has the beneficial effects that: at the initial stage of rainwater, the water quantity of the water inlet chamber is less, the ball float valve is in an open state, and the water inlet channel, the water through hole and the water outlet channel are communicated; along with the gradual increase of the rainfall entering the water inlet chamber, the water level of the water inlet chamber gradually rises, the floating ball floats upwards, and the valve rod drives the valve core to rotate until the floating ball valve is closed; when the water level of the water inlet chamber overflows the overflow weir, unfiltered rainwater overflows from an overflow channel of the overflow weir; contain a large amount of debris in exhaust initial stage rainwater and the overflow rainwater, be the dirty mixture of rain, exhaust dirty mixture of rain deposits the back in the cistern, loops through horizontal flow constructed wetland pond and vertical current constructed wetland pond and carries out multistage filtration, can effectively filter the impurity of aquatic through multistage filtration, reaches the purification purpose.
Drawings
FIG. 1 is a top view of the mixed wetland purification system for primary rainwater and overflow water of the present invention;
FIG. 2 is a sectional view of a flow dividing intercepting component in the mixed wetland purification system of initial rainwater and overflow water according to the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is an enlarged schematic view at B in FIG. 2;
fig. 5 is a top view of a horizontal flow constructed wetland in the mixed wetland purification system of initial rainwater and overflow water according to the present invention;
fig. 6 is a sectional view of the vertical flow constructed wetland in the mixed wetland purification system of initial rainwater and overflow water according to the present invention.
In the figure, 1 diversion interception component, 11 inlet pipe, 12 outlet pipe, 13 rain and sewage discharge outlet, 14 overflow weir, 15 filtering component, 151 driving device, 152 first filtering screen, 153 second filtering screen, 154 rotating shaft, 155 first filtering hole, 156 second filtering hole, 157 clamping part, 16 initial rainwater discharge outlet, 17 fixing ring, 18 ball float valve, 181 valve body, 182 water inlet channel, 183 valve core, 184 water outlet channel, 185 sealing ring, 186 backing ring, 187 end cover, 188 valve rod, 189 ball float, 19 ball float installation chamber, 2 reservoir, 3 horizontal flow constructed wetland, 31 first filtering layer, 32 second filtering layer, 33 third filtering layer, 34 fourth filtering layer, 35 water collecting tank, 36 partition board, 37 inlet water diversion pipe, 38 inlet branch pipe, 4 vertical flow constructed wetland, 41 first permeating layer, 42 second permeating layer, 43 third permeating layer, 44 fourth permeating layer, 45 soil covering layer, 46 inlet tank, 471 the fourth water pump, 472 the water distribution pipe, 473 the water distribution branch pipe, 474 the spray head, 48 the water outlet groove, 5 the first water pump, 6 the second water pump.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 and 2, the mixed wetland purification system for initial rainwater and overflow water comprises a diversion interception component 1, a reservoir 2, a horizontal flow constructed wetland 3, a vertical flow constructed wetland 4, a first water pump 5 and a second water pump 6; an overflow weir 14 is arranged in the flow dividing and intercepting component 1, the overflow weir 14 divides the flow dividing and intercepting component 1 into a rain and sewage converging chamber and a water inlet chamber, the tops of the rain and sewage converging chamber and the water inlet chamber are communicated, a water inlet pipe 11 is arranged at the upper part of the water inlet chamber, a water outlet pipe 12 is arranged at the lower part of the water inlet chamber, and a rain and sewage outlet 13 is arranged at the bottom of the rain and sewage converging chamber; a filter assembly 15 is arranged in the water inlet chamber, and the filter assembly 15 is positioned between the water inlet pipe 11 and the water outlet pipe 12; the bottom of the overflow weir 14 is provided with a ball float valve 18, and the rain and sewage converging chamber can be communicated with the water inlet chamber through the ball float valve 18; the rain and sewage outlet 13 is connected with the water inlet of the reservoir 2 through a first water pump 5 by a water pipe, the water outlet of the reservoir 2 is connected with the water inlet of the horizontal flow artificial wetland 3 by a second water pump 6 by a water pipe, and the water outlet of the horizontal flow artificial wetland 3 is connected with the water inlet of the vertical flow artificial wetland 4 by a water pipe. Rainwater enters the water inlet chamber through the water inlet pipe 11 and is primarily filtered through the filtering component 15, the initial rainwater amount is small, and the ball float valve 18 is opened to enable the rainwater to enter the rainwater and sewage converging chamber; along with the increase of rainfall, the water level in the water inlet chamber rises, the ball float valve 18 is closed, the water level in the water chamber gradually rises and flows over the overflow weir 14 to enter the rain and sewage converging chamber, rainwater in the rain and sewage converging chamber is precipitated and filtered in the reservoir 2 and then sequentially enters the horizontal flow artificial wetland 3 and the vertical flow artificial wetland 4, and multistage filtration and purification are realized through the horizontal flow artificial wetland 3 and the vertical flow artificial wetland 4.
Referring to fig. 2 and fig. 3, an initial rainwater outlet 16 is formed at the bottom of the overflow weir 14, a floating ball installation chamber 19 is formed at the connection position of the bottom of the water inlet chamber and the overflow weir 14, a floating ball valve 18 is arranged on the floating ball installation chamber 19, the floating ball valve 18 is positioned below the water outlet pipe 12, and the floating ball installation chamber 19 can be communicated with the water inlet chamber through the floating ball valve 18; one end of the initial rainwater drain 16 communicates with the float ball mounting chamber 19, and the other end of the initial rainwater drain 16 communicates with the rainwater and sewage collecting chamber. At the initial stage of rainwater, the water level in the intake chamber is low, the float valve 18 is opened, and the initial rainwater in the intake chamber enters the float installation chamber 19 and enters the rainwater and sewage collecting chamber through the initial rainwater discharge port 16.
Referring to fig. 2 and 3, the float valve 18 includes a valve body 181, a valve core 183, an end cap 187, a valve stem 188 and a float 189; the valve body 181 is mounted on the float ball mounting chamber 19, and a valve core accommodating cavity matched with the embedded valve core 183 is formed in the valve body 181; a water inlet channel 182 is formed at one side of the valve core accommodating cavity, the water inlet channel 182 is communicated with the water inlet chamber, a water outlet channel 184 is formed at the bottom of the valve core accommodating cavity, the water outlet channel 184 is communicated with the floating ball mounting chamber 19, a water through hole is formed in the valve core 183, and two ends of the water through hole are respectively communicated with the water inlet channel 182 and the water outlet channel 184; the other side of the valve core accommodating cavity is opened and sealed by an end cover 187, one end of a valve rod 188 is connected with the valve core 183, the other end of the valve rod 188 penetrates through the end cover 187, the valve rod 188 is rotatably connected with the end cover 187, and a floating ball 189 is positioned in the water inlet chamber and is connected with the other end of the valve rod 188 through a connecting rod. The floating ball 189 is obliquely arranged below through a connecting rod, the floating ball 189 rises due to buoyancy of water, the connecting rod rotates upwards along with the floating ball, the valve rod 188 is driven to rotate synchronously, and when the valve rod 188 rotates, the communication or staggering of the water through hole, the water inlet channel 182 and the water outlet channel 184 can be realized, so that the opening and closing functions of the floating ball valve 18 are realized, and the floating ball is used for distributing rainwater.
Referring to fig. 3, a backing ring 186 and a sealing ring 185 are disposed between the valve core 183 and the end cover 187, the valve core 183 is connected to the valve body 181 in a sealing manner through the sealing ring 185, and the end cover 187 is detachably screwed to the valve body 181 through a screw thread, so that the valve core is convenient to disassemble and assemble, and the sealing performance of the joint is good.
Referring to fig. 3, the valve body 181 is detachably screwed to the floating ball installation chamber 19 through a screw, and a sealing gasket is disposed at the joint, so that the assembly and disassembly are convenient, and the sealing performance of the joint is good.
Referring to fig. 4, the filter assembly 15 includes a driving device 151, a first filter 152, a second filter 153, and a rotating shaft 154; a fixing ring 17 is formed on the inner wall of the water inlet chamber in an annular manner, and the driving device 151 is connected to the center of the fixing ring 17 through a fixing rod; the first filter 152 is disposed on the fixing ring 17, the second filter 153 is stacked on the first filter 152, the lower end of the rotating shaft 154 is connected to the output end of the driving device 151, and the upper end of the rotating shaft 154 penetrates through the first filter 152 and then is connected to the second filter 153, so that the second filter 153 can rotate above the first filter 152.
Referring to fig. 4, a fixing groove (not shown) is formed on the fixing ring 17, a clamping portion 157 is disposed at the edge of the first filter 152, and the clamping portion 157 is fixedly clamped in the fixing groove, so that the filter is convenient and fast to assemble and disassemble, and has high stability after installation.
Referring to fig. 4, the first filter 152 and the second filter 153 are both arc-shaped structures with a high middle part and a low periphery, so that the filtered garbage can slide down to the periphery, and the first filter 152 and the second filter 153 are prevented from being blocked.
The area of the first filter holes 155 of the first filter 152 is m1, the area of the second filter holes 156 of the second filter 153 is m2, when the second filter 153 rotates, the first filter holes 155 and the second filter holes 156 are overlapped or staggered, the combined area of the first filter holes 155 and the second filter holes 156 is m, and m is greater than or equal to 0 and less than or equal to MIN (m1, m 2). Setting an initial value m0 of m as MIN (m1, m2), setting at least two values of m when the second filter screen 153 rotates, wherein one value is larger than 1/2m0, and the other value is smaller than 1/2m0, and calculating the rotation angle of the driving device 151 when m reaches the two values.
Preferably, the driving device 151 may employ a driving motor, and the driving motor may be protected by a waterproof protective cover. The driving motor and the simulation control terminal construct a 3D simulation structure of the first filter screen 152 and the second filter screen 153 through Gambit 3D simulation software, set boundary conditions and initial conditions by combining a rainwater flow model created by FLUENT software according to hydromechanics, generate grids, determine a simulated physical model, set a solver, select specifications of different heights of a water inlet area for simulation, obtain driving parameters such as the rotation angle of the driving motor and the like, and enable the driving device 151 to rotate by a required angle.
Referring to fig. 5, the horizontal flow constructed wetland 3 comprises a first filter layer 31, a second filter layer 32, a third filter layer 33, a fourth filter layer 34 and a water collection tank 35 which are sequentially arranged along the water flow direction, wherein the water inlet of the first filter layer 31 is communicated with the water outlet of the second water pump 6, and the water outlet of the water collection tank 35 is communicated with the water inlet of the vertical flow constructed wetland 4; soil layers (not shown) for growing plants are provided on the first filter layer 31, the second filter layer 32, the third filter layer 33, and the fourth filter layer 34. Preferably, the first filter layer 31 and the fourth filter layer 34 can adopt a pebble filler layer, the second filter layer 32 can adopt a fine sand filler layer, and the third filter layer 33 can adopt a smokeless coal layer, so that the multi-stage filtering function of the horizontal flow constructed wetland 3 can be realized.
Referring to fig. 5, the first filter layer 31 and the second filter layer 32 are separated by a partition 36, and a plurality of communication ports are formed at the lower part of the partition 36 to communicate the first filter layer 31 with the second filter layer 32; the second filter layer 32 and the third filter layer 33 are separated by a partition plate 36, and a plurality of communication ports are formed at the upper part of the partition plate 36, so that the second filter layer 32 is communicated with the third filter layer 33; the third filter layer 33 and the fourth filter layer 34 are separated by a partition plate 36, and a plurality of communication ports are formed at the lower part of the partition plate 36, so that the third filter layer 33 is communicated with the fourth filter layer 34; the fourth filter layer 34 is separated from the water collecting tank 35 by a partition plate 36, and a plurality of water permeable holes are uniformly distributed on the partition plate 36. Rainwater sequentially flows from the first filter layer 31 to the fourth filter layer 34 through the communication ports on the partition plate 36, four-stage filtration is realized in the flowing process, and finally the rainwater is gathered in the water collecting tank 35 through the water permeable holes.
Referring to fig. 5, the horizontal flow constructed wetland 3 is in a fan-shaped structure, and the first filter layer 31, the second filter layer 32, the third filter layer 33, the fourth filter layer 34 and the water collection tank 35 are respectively and sequentially arranged from the circumference to the center of a circle along the radial direction of the fan-shaped structure; a plurality of water inlets are formed at the top of the first filter layer 31 at intervals, a plurality of water inlet branch pipes 38 are connected to the plurality of water inlets, the plurality of water inlet branch pipes 38 are connected to one ends of the water inlet branch pipes 37, and the other ends of the water inlet branch pipes 37 are connected with the water outlet of the second water pump 6. Preferably, the number of the water inlet branch pipes 38 is not less than three and distributed at equal intervals, so that the rainwater can be dispersed conveniently, and a better filtering effect is achieved.
Referring to fig. 6, the vertical flow constructed wetland 4 comprises a first permeable layer 41, a second permeable layer 42, a third permeable layer 43, a fourth permeable layer 44, a soil covering layer 45, a water inlet groove 46 and a water outlet groove 48; the water inlet groove 46 and the water outlet groove 48 are respectively arranged on two sides of the vertical flow artificial wetland 4, and the first permeable layer 41, the second permeable layer 42, the third permeable layer 43, the fourth permeable layer 44 and the soil covering layer 45 are sequentially arranged from bottom to top and are positioned between the water inlet groove 46 and the water outlet groove 48; the water inlet of the water inlet groove 46 is communicated with the water outlet of the water collecting groove 35 of the horizontal flow artificial wetland 3, and the water outlet of the water inlet groove 46 is communicated with the soil covering layer 45 through a water distribution assembly; outlet channel 48 communicates with first permeable layer 41. The rainwater after the first multi-stage filtration of the horizontal flow artificial wetland 3 enters the water inlet groove 46 and is uniformly distributed to the soil covering layer 45 through the water distribution assembly, the rainwater sequentially permeates into the first permeable layer 41 from top to bottom, the purpose of five-stage filtration is achieved, the rainwater finally enters the water outlet groove 48, and the rainwater in the water outlet groove 48 can be discharged or recycled.
Referring to fig. 6, the water distribution assembly includes a fourth water pump 471, a water distribution pipe 472, a water distribution branch pipe 473 and a spray head 474; the fourth water pump 471 is arranged at the bottom of the water inlet tank 46, a water outlet of the fourth water pump 471 is communicated with one end of the water distribution pipe 472 through a water pipe, and the water distribution pipe 472 is laid in the soil covering layer 45; the lower ends of the water distribution branch pipes 473 are connected to the water distribution pipes 472 at intervals, and the upper ends of the water distribution branch pipes 473 extend to the upper side of the soil covering layer 45 and are connected to the spray heads 474. The spray head 474 sprays water upwards, and the sprayed water is in full contact with air, which is beneficial to increasing dissolved oxygen in water.
Referring to fig. 1 to 6, the working principle of the present invention is:
the initial stage rainwater gets into in the intake chamber from inlet tube 11, assembles in the intake chamber after first filter screen 152 and second filter screen 153 prefilter of filter assembly 15, and the indoor water yield of rainwater initial stage intake is less, and ball-cock assembly 18 is in the open mode, and inlet channel 182, limbers and outlet channel 184 intercommunication, rainwater in the intake chamber flow into the rain and sewage room through initial stage rainwater discharge port 16 through floater installation room 19. The rainfall increases gradually, the water in the inlet chamber is more, the ball float valve 18 floats upwards and closes, and the limber holes are staggered with the inlet passage 182 and the outlet passage 184. The water level in the inlet chamber gradually rises and flows over the overflow weir 14 into the rain and sewage collecting chamber. The initial rainwater and the rainwater unfiltered at the time of overflowing are divided by the overflow weir 14, the float ball installation chamber 19 and the float ball valve 18 in the flow dividing intercepting module 1.
Rainwater in the rain and sewage converging chamber is discharged to the reservoir 2 through the rain and sewage discharge port 13 through the first water pump 5, and the discharged rainwater is a rain and sewage mixture and contains a large amount of sundries, and the rainwater is precipitated in the reservoir 2 to realize secondary filtration. The upper rainwater of cistern 2 discharges through second water pump 6 and carries out multistage filtration to artifical wetland pond 3 of horizontal flow and artifical wetland pond 4 of vertical current, and the impurity in the effective filtering aquatic reaches the purification purpose.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a mixed wetland clean system of initial stage rainwater and overflow water, characterized by: the device comprises a flow splitting and intercepting component (1), a reservoir (2), a horizontal flow artificial wetland (3), a vertical flow artificial wetland (4), a first water pump (5) and a second water pump (6); an overflow weir (14) is arranged in the flow dividing and intercepting component (1), the overflow weir (14) divides the flow dividing and intercepting component (1) into a rain and sewage converging chamber and a water inlet chamber, the top of the rain and sewage converging chamber is communicated with the top of the water inlet chamber, a water inlet pipe (11) is arranged at the upper part of the water inlet chamber, a water outlet pipe (12) is arranged at the lower part of the water inlet chamber, and a rain and sewage outlet (13) is arranged at the bottom of the rain and sewage converging chamber; a filter component (15) is arranged in the water inlet chamber, and the filter component (15) is positioned between the water inlet pipe (11) and the water outlet pipe (12); the bottom of the overflow weir (14) is provided with a ball float valve (18), and the rain and sewage converging chamber can be communicated with the water inlet chamber through the ball float valve (18); the rain and sewage discharge port (13) is connected with the water inlet of the reservoir (2) through the first water pump (5), the water outlet of the reservoir (2) is connected with the water inlet of the horizontal flow artificial wetland (3) through the second water pump (6), and the water outlet of the horizontal flow artificial wetland (3) is connected with the water inlet of the vertical flow artificial wetland (4).
2. The system of claim 1, wherein the system comprises: an initial rainwater outlet (16) is formed at the bottom of the overflow weir (14), a floating ball mounting chamber (19) is formed at the connection part of the bottom of the water inlet chamber and the overflow weir (14), a floating ball valve (18) is arranged on the floating ball mounting chamber (19), the floating ball valve (18) is positioned below the water outlet pipe (12), and the floating ball mounting chamber (19) can be communicated with the water inlet chamber through the floating ball valve (18); one end of the initial rainwater outlet (16) is communicated with the floating ball mounting chamber (19), and the other end of the initial rainwater outlet (16) is communicated with the rainwater and sewage converging chamber.
3. The system for purifying a mixed wetland of initial rainwater and overflow water according to claim 1 or 2, wherein: the float valve (18) comprises a valve body (181), a valve core (183), an end cover (187), a valve rod (188) and a float ball (189); the valve body (181) is arranged on the floating ball mounting chamber (19), and a valve core accommodating cavity matched with the embedded valve core (183) is formed in the valve body (181); a water inlet channel (182) is formed on one side of the valve core accommodating cavity, the water inlet channel (182) is communicated with the water inlet chamber, a water outlet channel (184) is formed at the bottom of the valve core accommodating cavity, the water outlet channel (184) is communicated with the floating ball mounting chamber (19), a water through hole is formed in the valve core (183), and two ends of the water through hole are respectively communicated with the water inlet channel (182) and the water outlet channel (184); the other side opening of case holding chamber is sealed through end cover (187), and the one end of valve rod (188) is connected with case (183), and the other end of valve rod (188) runs through end cover (187), and valve rod (188) and end cover (187) rotatable formula are connected, and floater (189) are located the inlet chamber and are connected with the other end of valve rod (188) through the connecting rod.
4. The system of claim 3, wherein the system comprises: a backing ring (186) and a sealing ring (185) are arranged between the valve core (183) and the end cover (187), the valve core (183) is connected with the valve body (181) in a sealing way through the sealing ring (185), and the end cover (187) is detachably screwed with the valve body (181);
the valve body (181) is detachably and rotatably connected with the floating ball mounting chamber (19), and a sealing washer is arranged at the joint.
5. The system of claim 1, wherein the system comprises: the filter assembly (15) comprises a driving device (151), a first filter screen (152), a second filter screen (153) and a rotating shaft (154); a fixing ring (17) is formed on the inner wall of the water inlet chamber in an annular manner, and the driving device (151) is connected to the center of the fixing ring (17) through a fixing rod; first filter screen (152) set up on solid fixed ring (17), and second filter screen (153) range upon range of setting is on first filter screen (152), and the lower extreme and the output of drive arrangement (151) of pivot (154) are connected, and the upper end of pivot (154) is run through behind first filter screen (152) and is connected with second filter screen (153), makes second filter screen (153) can rotate above first filter screen (152).
6. The system of claim 5, wherein the wetland comprises: a fixed groove is formed on the fixed ring (17), a clamping part (157) is arranged at the edge of the first filter screen (152), and the clamping part (157) is fixedly clamped in the fixed groove;
the first filter screen (152) and the second filter screen (153) are of cambered surface structures with high middle parts and low periphery.
7. The system of claim 1, wherein the system comprises: the horizontal flow artificial wetland (3) comprises a first filter layer (31), a second filter layer (32), a third filter layer (33), a fourth filter layer (34) and a water collection tank (35) which are sequentially arranged along the water flow direction, the water inlet of the first filter layer (31) is communicated with the water outlet of the second water pump (6), and the water outlet of the water collection tank (35) is communicated with the water inlet of the vertical flow artificial wetland (4); soil layers for planting plants are arranged on the first filter layer (31), the second filter layer (32), the third filter layer (33) and the fourth filter layer (34);
the horizontal flow artificial wetland (3) is of a fan-shaped structure, and a first filter layer (31), a second filter layer (32), a third filter layer (33), a fourth filter layer (34) and a water collection tank (35) are sequentially arranged from the circumference to the circle center along the radial direction of the fan-shaped structure respectively; a plurality of water inlets are formed in the top of the first filter layer (31) at intervals, water inlet branch pipes (38) are connected to the water inlets, the water inlet branch pipes (38) are connected to one ends of the water inlet branch pipes (37), and the other ends of the water inlet branch pipes (37) are connected with a water outlet of the second water pump (6).
8. The system of claim 7, wherein the system comprises: the first filter layer (31) and the second filter layer (32) are separated by a partition board (36), and a plurality of communication ports are formed at the lower part of the partition board (36) to ensure that the first filter layer (31) is communicated with the second filter layer (32); the second filter layer (32) and the third filter layer (33) are separated by a partition board (36), and a plurality of communication ports are formed at the upper part of the partition board (36) to ensure that the second filter layer (32) is communicated with the third filter layer (33); the third filter layer (33) and the fourth filter layer (34) are separated by a partition board (36), and a plurality of communication ports are formed at the lower part of the partition board (36) to ensure that the third filter layer (33) is communicated with the fourth filter layer (34); the fourth filter layer (34) and the water collecting tank (35) are separated by a partition plate (36), and a plurality of water permeable holes are uniformly distributed on the partition plate (36).
9. The system of claim 7, wherein the system comprises: the vertical flow artificial wetland (4) comprises a first permeable layer (41), a second permeable layer (42), a third permeable layer (43), a fourth permeable layer (44), a soil covering layer (45), a water inlet groove (46) and a water outlet groove (48); the water inlet groove (46) and the water outlet groove (48) are respectively arranged on two sides of the vertical flow artificial wetland (4), and the first permeable layer (41), the second permeable layer (42), the third permeable layer (43), the fourth permeable layer (44) and the soil covering layer (45) are sequentially arranged from bottom to top and are positioned between the water inlet groove (46) and the water outlet groove (48); the water inlet of the water inlet groove (46) is communicated with the water outlet of the water collecting groove (35) of the horizontal flow artificial wetland (3), and the water outlet of the water inlet groove (46) is communicated with the soil covering layer (45) through the water distribution component; the exit channel (48) is in communication with the first permeate layer (41).
10. The system of claim 9, wherein the system comprises: the water distribution assembly comprises a fourth water pump (471), a water distribution pipe (472), a water distribution branch pipe (473) and a spray head (474); the fourth water pump (471) is arranged at the bottom of the water inlet tank (46), the water outlet of the fourth water pump (471) is communicated with one end of the water distribution pipe (472), and the water distribution pipe (472) is laid in the soil covering layer (45); the lower ends of the water distribution branch pipes (473) are respectively connected to the water distribution pipes (472) at intervals, and the upper ends of the water distribution branch pipes (473) extend to the upper part of the soil covering layer (45) and are connected with the spray head (474).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054319.7A CN114409189A (en) | 2022-01-18 | 2022-01-18 | Mixed wetland clean system of initial stage rainwater and overflow water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054319.7A CN114409189A (en) | 2022-01-18 | 2022-01-18 | Mixed wetland clean system of initial stage rainwater and overflow water |
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| CN114409189A true CN114409189A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210054319.7A Pending CN114409189A (en) | 2022-01-18 | 2022-01-18 | Mixed wetland clean system of initial stage rainwater and overflow water |
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| CN113187078A (en) * | 2021-05-18 | 2021-07-30 | 上海中森建筑与工程设计顾问有限公司 | Rainwater treatment device |
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| CN201513621U (en) * | 2009-10-16 | 2010-06-23 | 卢忠伦 | Internal plug type float ball valve |
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Application publication date: 20220429 |