CN204891388U - Initial stage rainwater filter - Google Patents
Initial stage rainwater filter Download PDFInfo
- Publication number
- CN204891388U CN204891388U CN201520516502.XU CN201520516502U CN204891388U CN 204891388 U CN204891388 U CN 204891388U CN 201520516502 U CN201520516502 U CN 201520516502U CN 204891388 U CN204891388 U CN 204891388U
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- floating block
- buoyancy tank
- early
- stage rainwater
- filter according
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Abstract
The utility model discloses an initial stage rainwater filter, including supporting baseplate and apron, coaxial outer filter screen and the inner filtration net of being fixed with on the supporting baseplate, the apron covers in outer filter screen and inner filtration net top, is equipped with filtering medium between outer filter screen and inner filtration net, side wall in bank water cavity in the inner filtration net, even there is the drain pipe drainage cavity bottom, and the drain pipe entry is equipped with the current -limiting device that floats. The outer filter screen of this filter utilization, filtering medium and inner filtration net are to three heavy filtrations of rainwater to guarantee through the current -limiting device that floats that rainwater and filtering medium have abundant contact, reach the purpose of effectively getting rid of the pollutant, when the contaminated thing of filtering medium blockked up, the current -limiting device that floats can improve the rainwater flow through the filter, at filter during operation not, through the effect of washing, rush out the filter with the pollutant that filtering medium held back, improve filtering medium's penetrating power.
Description
Technical field
The utility model relates to device for treating rain water, refers to a kind of early-stage rainwater filter particularly.
Background technology
Along with the quickening of urbanization process, on ground, Permeable stratum area is increasing, pollutant builds up on these fluid-tight ground, when rainfall, pollutant is poured rainfall runoff system and forms rainwater runoff pollution by rain drop erosion ground, and rainwater runoff pollution is that a kind of diffusivity is polluted, and then enters into natural water, cause water pollution, pollutant wherein comprises the poisonous and harmful substances such as particle, organic matter, heavy metal.Therefore, urbanization process and industrialization development cause water source judgment and rain flood to endanger day by day serious.
Along with the aggravation of water source judgment and the harm of rain flood, using rainwater in addition Collection utilization carry out as water resource the emerging problem that the comprehensive regulation become important.In overall city planning, the combined drainage system great majority that the past adopts are changed a social system, change separate system into or the drainage system processed that dams.Serious along with urban atmospheric pollution and ground pollution, rainwater runoff pollution is further serious, and the early-stage rainwater that especially pollutant is more, the pollutant index peak of the early-stage rainwater of certain areas is far away higher than typical urban sanitary sewage.Therefore, be necessary to process early-stage rainwater.
China is scarcely out of swaddling-clothes to the collection process of early-stage rainwater at present, and collecting early-stage rainwater is only do not allow it enter water pollution water quality, and then seldom consider for the purified treatment of early-stage rainwater and reuse, majority directly enters municipal sanitary sewage pipe network.The pollutant levels contained in early-stage rainwater are higher, especially road early-stage rainwater, directly enter sanitary sewage pipe network and can bring larger load to Sewage Plant.
Summary of the invention
The purpose of this utility model will provide a kind of early-stage rainwater filter exactly, and this filter significantly can reduce the pollutant load in early-stage rainwater, and structure is simple, easy for installation.
For achieving the above object, the technical solution adopted in the utility model is: a kind of early-stage rainwater filter, comprise support baseboard and cover plate, described support baseboard is coaxially fixed with outer screen pack and filtering net, described cover plate is covered in described outer screen pack and described filtering net top, is provided with filter medium, surrounds draining cavity inside described filtering net between described outer screen pack and filtering net, described draining cavity bottom is connected with drainpipe, and described drain inlet is provided with floating current-limiting apparatus.
This filter utilizes outer screen pack, filter medium and filtering net to carry out triple filter to rainwater, and ensure that rainwater and filter medium have sufficient contact by the current-limiting apparatus that floats, and reaches the object effectively removing pollutant; When the contaminated thing blocking of filter medium, floating current-limiting apparatus can improve the rainwater flow by filter; When filter does not work, by back flush effect, the pollutant part that filter medium can be retained goes out filter, improves the penetrating power of filter medium; The utility model structure is simple, easy for installation, safeguards easily, is particularly useful for early-stage rainwater purified treatment.
Further, described floating current-limiting apparatus comprises ball float, described ball float is held on described drain inlet, described ball float had water breach, and described ball float top is connected with connecting rod, described connecting rod top is connected with floating block, and described floating block is contained in buoyancy tank, described buoyancy tank is fixed on described cover plate, is provided with aquaporin between described buoyancy tank and described draining cavity.Floating block is contained in inside buoyancy tank, can float to buoyancy tank top when buoyancy tank inner filling water; Connecting rod one end was passed aquaporin and was connected with floating block, and the other end is connected with ball float; Crossing aquaporin allows water to circulate between buoyancy tank inside and draining cavity; Ball float contacts with drain inlet, and the water breach of crossing on ball float allows the water in draining cavity to enter drainpipe, makes rainwater and filter medium have sufficient contact simultaneously, thus promotes detersive efficiency, reach the object effectively removing pollutant by limited flow.
Further, described buoyancy tank is connected with unidirectional ventilation duct, and is provided with floating block fixed mechanism.
Further, described connecting rod top is fixedly connected with described floating block through described aquaporin of crossing.Connecting rod can move up and down in mistake aquaporin, thus makes floating block drive ball float to move up and down.
Further, described buoyancy tank comprises the left buoyancy tank and right buoyancy tank that are arranged symmetrically with, and described floating block comprises left floating block and right floating block, and described left floating block is contained in described left buoyancy tank, described right floating block is contained in described right buoyancy tank, and described left floating block is fixedly connected with described connecting rod respectively with described right floating block.Be symmetrical set two buoyancy tanks to draw ball float, be conducive to the stability promoting whole floating current-limiting apparatus.
Further, described drainpipe is provided with excess-flow valve.Excess-flow valve is set in the downstream of drainpipe, rainwater can be made fully to contact with filter medium by limited flow, thus promote detersive efficiency further.
Further, described floating block fixed mechanism is the longitudinal adjustable bolt being arranged on buoyancy tank top.This floating block fixed mechanism, in order to be fixed by floating block when back flush, prevents floating block from floating when back flush.
Further, be provided with filter medium and lay basket between described outer screen pack and described filtering net, described filter medium is placed in described filter medium and lays in basket, and it is cylinder shape that described filter medium lays basket, and top is opened wide.
Further, described outer screen pack and described filtering net are respectively in hollow cylindrical, square tube shape or polygon tubular.
Further, described draining cavity top is connected with back flush pipe, and described back flush pipe top is provided with mouthpiece cover.
Accompanying drawing explanation
Fig. 1 is a kind of sectional structure schematic diagram of early-stage rainwater filter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, is convenient to more clearly understand the utility model, but they do not form restriction to the utility model.
A kind of early-stage rainwater filter as shown in Figure 1, comprise support baseboard 1 and cover plate 2, gripper shoe 1 and cover plate 2 all waterproof, support baseboard 1 is coaxially fixed with outer screen pack 3 and filtering net 4, outer screen pack 3 and filtering net 4 are respectively in hollow cylindrical, cover plate 2 is covered in outer screen pack 3 and filtering net 4 top, be provided with filter medium between outer screen pack 3 and filtering net 4 and lay basket 5, filter medium lays basket 5 in cylinder shape, and top is opened wide, for laying filter medium 15, when pulling down cover plate 2, filter medium can be laid basket 5 to take out to change filter medium, draining cavity 6 is surrounded inside filtering net 4, draining cavity 6 top is connected with back flush pipe 7, back flush pipe 7 top is provided with mouthpiece cover 14, drainpipe 8 is connected with bottom draining cavity 6, that is: the center of support baseboard 1 communicates with drainpipe 8, drainpipe 8 entrance is provided with floating current-limiting apparatus 9, and the pipeline below drainpipe 8 mouth of pipe is provided with excess-flow valve 13.Wherein, structural member all adopts resistant material to make; The filter medium filter medium laid in basket 5 can be the mixture of one or more in compost, active carbon, vermiculite, sand, zeolite, peat or ion-exchanger.
In such scheme, the current-limiting apparatus 9 that floats comprises ball float 9-1, ball float 9-1 is held on drainpipe 8 entrance, ball float 9-1 had water breach 9-11 (this is crossed water breach 9-11 and also can be opened on drainpipe 8 entrance), and ball float 9-1 top is connected with connecting rod 9-2, connecting rod 9-2 top is connected with floating block 9-3, floating block 9-3 is contained in buoyancy tank 9-4, buoyancy tank 9-4 is fixed on cover plate 2, aquaporin 10 was provided with between buoyancy tank 9-4 and draining cavity 6, when buoyancy tank 9-4 inner filling water, floating block 9-3 can floating to buoyancy tank 9-4 top.
In such scheme, back flush pipe 7 is arranged on the center of cover plate 2, buoyancy tank 9-4 comprises the left buoyancy tank 9-41 and right buoyancy tank 9-42 that are arranged symmetrically in back flush pipe 7 both sides, floating block 9-3 comprises left floating block 9-31 and right floating block 9-32, left floating block 9-31 is contained in left buoyancy tank 9-41, and right floating block 9-32 is contained in right buoyancy tank 9-42; Cross aquaporin 10 and comprise the left right aquaporin 10-2 excessively crossing aquaporin 10-1 and be communicated with right buoyancy tank 9-42 and draining cavity 6 being communicated with left buoyancy tank 9-41 and draining cavity 6; Connecting rod 9-2 top is arranged with left branching rod 9-21 and right pole 9-22, left branching rod 9-21 are fixedly connected with left floating block 9-31 through the left aquaporin 10-1 that crosses, and right pole 9-22 is fixedly connected with right floating block 9-32 through the right aquaporin 10-2 that crosses; Left buoyancy tank 9-41 is connected with unidirectional ventilation duct 11 and floating block fixed mechanism 12, this floating block fixed mechanism 12 is for being arranged on the longitudinal adjustable bolt on left buoyancy tank 9-41 top board, in order to floating block 9-3 is fixed when back flush, prevent two pieces of floating block 9-3 from floating when rinsing, wherein, unidirectional ventilation duct 11 and floating block fixed mechanism 12 also can be arranged on right buoyancy tank 9-42.
The course of work of above-mentioned early-stage rainwater filter is as follows: during the work of filter normal filtration, the end of back flush pipe 7 is closed by mouthpiece cover 14, ball float 9-1 abuts against on the entrance of drainpipe 8, just start, extraneous rainwater enters from outer screen pack 3, draining cavity 6 is entered through filtering net 4 laid the filter media process in basket 5 by filter medium after, air in draining cavity 6 can be discharged by the unidirectional ventilation duct 11 on buoyancy tank 9-4, thus keep filter external and internal pressure in a basic balance, rainwater in draining cavity 6 after process can slowly flow into drainpipe 8 (current trend is shown in arrow 16) by the water breach 9-11 that crosses on ball float 9-1, crossing water breach 9-11 convection current quantitative limitation makes rainwater and filter medium have sufficient contact, reach the object effectively removing pollutant, along with extraneous rainwater water level rises, when filter is flooded completely, draining cavity 6, the inside of left buoyancy tank 9-41 and right buoyancy tank 9-42 all can be full of rainwater, left floating block 9-31 in buoyancy tank 9-4 and right floating block 9-32 will float, the ball float 9-1 be connected by connecting rod 9-2 with left floating block 9-31 and right floating block 9-32 also can be risen along with left floating block 9-31 and right floating block 9-32 and leave drainpipe 8 entrance, rainwater in draining cavity 6 after process will directly be discharged by drainpipe 8, now, the excess-flow valve 13 in drainpipe 8 downstream can be regulated, rainwater and filter medium is made to have sufficient contact by limited flow, reach the object of removing pollutant, in this case, because the air of filter interior is excluded, pressure reduction inside and outside filter can impel rainwater to enter filter, this can improve the rainwater flow by filter medium when the contaminated thing blocking of filter medium, after a rainwater treatment terminates, floating block fixed mechanism 12 (longitudinal adjustable bolt) on adjustment buoyancy tank 9-4, floating block 9-3 is fixed on inside buoyancy tank 9-4, take off the mouthpiece cover 14 of back flush pipe 7, external source is injected draining cavity 6 pairs of filter interior from back flush pipe 7 rinse, the pollutant part retained by filter medium goes out filter, to improve the penetrating power of filter medium, after filter uses for a long time, filter medium can contaminated thing Severe blockage, substantially penetrating power is lost, now cover plate 2 can be pulled down, take out filter medium and lay basket 5, change filter medium.
Claims (10)
1. an early-stage rainwater filter, comprise support baseboard (1) and cover plate (2), it is characterized in that: described support baseboard (1) is coaxially fixed with outer screen pack (3) and filtering net (4), described cover plate (2) is covered in described outer screen pack (3) and described filtering net (4) top, filter medium (15) is provided with between described outer screen pack (3) and filtering net (4), described filtering net (4) inner side surrounds draining cavity (6), described draining cavity (6) bottom is connected with drainpipe (8), described drainpipe (8) entrance is provided with floating current-limiting apparatus (9).
2. early-stage rainwater filter according to claim 1, it is characterized in that: described floating current-limiting apparatus (9) comprises ball float (9-1), described ball float (9-1) is held on described drainpipe (8) entrance, described ball float (9-1) had water breach (9-11), and described ball float (9-1) top is connected with connecting rod (9-2), described connecting rod (9-2) top is connected with floating block (9-3), described floating block (9-3) is contained in buoyancy tank (9-4), described buoyancy tank (9-4) is fixed on described cover plate (2), aquaporin (10) was provided with between described buoyancy tank (9-4) and described draining cavity (6).
3. early-stage rainwater filter according to claim 2, is characterized in that: described buoyancy tank (9-4) is connected with unidirectional ventilation duct (11), and is provided with floating block fixed mechanism (12).
4. early-stage rainwater filter according to claim 2, is characterized in that: described connecting rod (9-2) top is fixedly connected with described floating block (9-3) through described aquaporin (10) of crossing.
5. early-stage rainwater filter according to Claims 2 or 3, it is characterized in that: described buoyancy tank (9-4) comprises the left buoyancy tank (9-41) and right buoyancy tank (9-42) that are arranged symmetrically with, described floating block (9-3) comprises left floating block (9-31) and right floating block (9-32), described left floating block (9-31) is contained in described left buoyancy tank (9-41), described right floating block (9-32) is contained in described right buoyancy tank (9-42), and described left floating block (9-31) is fixedly connected with described connecting rod (9-2) respectively with described right floating block (9-32).
6. early-stage rainwater filter according to claim 1 or 2, is characterized in that: described drainpipe (8) is provided with excess-flow valve (13).
7. early-stage rainwater filter according to claim 3, is characterized in that: described floating block fixed mechanism (12) is for being arranged on longitudinal adjustable bolt at buoyancy tank (9-4) top.
8. early-stage rainwater filter according to claim 1, it is characterized in that: be provided with filter medium between described outer screen pack (3) and described filtering net (4) and lay basket (5), described filter medium (15) is placed in described filter medium and lays in basket (5), described filter medium lays basket (5) in cylinder shape, and top is opened wide.
9. early-stage rainwater filter according to claim 1 or 8, is characterized in that: described outer screen pack (3) and described filtering net (4) are respectively in hollow cylindrical, square tube shape or polygon tubular.
10. early-stage rainwater filter according to claim 1, it is characterized in that: described draining cavity (6) top is connected with back flush pipe (7), described back flush pipe (7) top is provided with mouthpiece cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516502.XU CN204891388U (en) | 2015-07-16 | 2015-07-16 | Initial stage rainwater filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516502.XU CN204891388U (en) | 2015-07-16 | 2015-07-16 | Initial stage rainwater filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204891388U true CN204891388U (en) | 2015-12-23 |
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ID=54913605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520516502.XU Expired - Fee Related CN204891388U (en) | 2015-07-16 | 2015-07-16 | Initial stage rainwater filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204891388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056615A (en) * | 2015-07-16 | 2015-11-18 | 武汉圣禹排水系统有限公司 | Initial rainwater filter |
| CN110747980A (en) * | 2019-11-06 | 2020-02-04 | 张杰新 | Multifunctional intelligent soft water storage equipment |
-
2015
- 2015-07-16 CN CN201520516502.XU patent/CN204891388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056615A (en) * | 2015-07-16 | 2015-11-18 | 武汉圣禹排水系统有限公司 | Initial rainwater filter |
| CN110747980A (en) * | 2019-11-06 | 2020-02-04 | 张杰新 | Multifunctional intelligent soft water storage equipment |
| CN110747980B (en) * | 2019-11-06 | 2020-10-30 | 张杰新 | Multifunctional intelligent soft water storage equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160517 Address after: 430056, No. 189, full North Road, Wuhan economic and Technological Development Zone, Hubei Patentee after: WUHAN MEIHUA YUSHUI ENVIRONMENT Co.,Ltd. Address before: 430056 Hubei city of Wuhan province Wuhan economic and Technological Development Zone Science and Technology Industrial Park Yang Dun Patentee before: WUHAN SHENGYU DRAINAGE SYSTEM Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 |