CN202202394U - Rainwater drainage system with shallow rainwater adjusting storing structure - Google Patents
Rainwater drainage system with shallow rainwater adjusting storing structure Download PDFInfo
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- CN202202394U CN202202394U CN2011203381628U CN201120338162U CN202202394U CN 202202394 U CN202202394 U CN 202202394U CN 2011203381628 U CN2011203381628 U CN 2011203381628U CN 201120338162 U CN201120338162 U CN 201120338162U CN 202202394 U CN202202394 U CN 202202394U
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- rainwater
- drainage system
- layer rainwater
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Abstract
The utility model discloses a rainwater drainage system with a shallow rainwater adjusting storing structure. The rainwater drainage system at least comprises an upstream manhole, a downstream manhole, and a through trunk pipeline; the shallow rainwater adjusting storing structure is disposed between the upstream manhole and the downstream manhole through parallel connection; the upstream manhole is inside provided with an overflow weir for forming an overflow area; a weir top of the overflow weir is flush with an inner top of a water inlet pipe of the upstream manhole; and a water inlet pipe of the shallow rainwater adjusting storing structure is communicated with the overflow area and a water outlet pipe is communicated with the downstream manhole. With the shallow rainwater adjusting storing structure, the rainwater drainage system enables excessive water to overflow to the shallow rainwater adjusting storing structure through the overflow weir in the upstream manhole and to be drained to the downstream manhole slowly when rainfall intensity exceeds original design standard of the rainwater drainage system. The rainwater drainage system has improved flood prevention standard, can store excessive storm water when storm water flow exceeds the standard, and reduces the possibility of water logging in upstream areas.
Description
Technical field
The utility model relates to rain flood technical field, relates in particular to a kind of with the regulate and store drainage system against rain of structure of shallow-layer rainwater.
Background technology
Along with the increase that the expansion and the UrbaniZed Area of urbanized area are built mining inetesity, the hydrology of UrbaniZed Area, meteorological condition change in recent years, and the frequency and the intensity that cause heavy rain to produce increase year by year, and the city flood control faces more and more stern challenge.In the case, further reduce rain big flood evil, safeguard city public infrastructure normal and stable ground operation, ensure resident's the security of the lives and property, rain flood facility has been proposed new requirement.
Existing Urban Rainwater Pipe Networks system always designs based on the certain designed heavy rain recurrence interval, can not produce the waterlogging problem in design standard with interior rainfall incident, but the rainfall incident that is higher than design standard just possibly cause waterlogging, produces ponding.Therefore, in theory, design the Storm Sewer Network system according to peak rainfall intensity and can thoroughly avoid the waterlogging disaster.But high-intensity rainfall generally lasts shorter, this means that lasting of the big flow of surface runoff is also shorter, and the frequency that occurs is not high yet.Therefore, because this uncertainty and the small probability characteristic of peak rainfall intensity, it is both unrealistic also uneconomical in actual conditions, to design the Storm Sewer Network system according to peak rainfall intensity.
The existing drainage system against rain of China generally is made up of inlet for stom water, storm sewer, pumping plant (the pump heat-extraction system has, and does not have from heat-extraction system).Some areas are provided with storage pond at the end of combined drainage system (Storm Sewer Network is its part), but the effect of this storage pond mainly is the pollution problem when subduing storm-water drainage to rivers, but not improve drainability.
As shown in Figure 1, existing a kind of drainage system against rain mainly comprises upper reaches manhole, downstream manhole, and runs through pipeline therebetween.When rainfall intensity is in former design standard, Q1=Q2, promptly the situation of waterlogging ponding can not take place in the upstream area.But when rainfall intensity surpassed former design standard, flow strengthened in the pipeline, the also corresponding increase of head loss, and when flow acquired a certain degree, the liquid level in the manhole of the upper reaches was above the ground level, thereby the situation of waterlogging ponding takes place.
Therefore, those skilled in the art is devoted to develop the regulate and store drainage system against rain of structure of band shallow-layer rainwater that a kind of drainability increases.
The utility model content
Because the above-mentioned defective of prior art, the utility model technical problem to be solved provides the regulate and store drainage system against rain of structure of band shallow-layer rainwater that a kind of drainability improves.
Be to realize that above-mentioned purpose, the utility model provide a kind of and comprised upper reaches manhole, downstream manhole at least with the regulate and store drainage system against rain of structure of shallow-layer rainwater, and the trunk line that connects; The parallelly connected shallow-layer rainwater structure of regulating and storing that is provided with between said upper reaches manhole and said downstream manhole; Also be provided with overflow weir in the manhole of the said upper reaches to form overflow; The weir crest of said overflow weir flushes with the interior top of the water inlet pipe pipe of said upper reaches manhole; The said shallow-layer rainwater water inlet pipe of structure of regulating and storing is communicated with said overflow in the manhole of the said upper reaches, and the regulate and store outlet pipe of structure of said shallow-layer rainwater is communicated with said downstream manhole.
In practical implementation, the regulate and store water inlet pipe of structure of said shallow-layer rainwater is got into by the regulate and store top of structure of said shallow-layer rainwater, and the regulate and store outlet pipe of structure of said shallow-layer rainwater is derived by the regulate and store bottom of structure of said shallow-layer rainwater.
In difference was implemented, the said shallow-layer rainwater structure of regulating and storing was tubular type reservoir or box culvert formula reservoir.
In other are implemented, be provided with a plurality of shallow-layer rainwater structure of regulating and storing in the said drainage system against rain.
In difference was implemented, the said shallow-layer rainwater structure of regulating and storing was arranged on the middle part of existing drainage system against rain or plays the end.
The regulate and store drainage system against rain of structure of the band shallow-layer rainwater of the utility model is a kind of online regulating system; The structure because the shallow-layer rainwater that is provided with online adjusting is regulated and stored; When rainfall intensity surpasses the original design standard of drainage system against rain; The rainwater that exceeds standard is regulated and stored in the structure through overflow weir overflow to shallow-layer in the manhole of the upper reaches, slowly drains into the downstream manhole again.
So, the utility model has delayed the following of peak flood flow to be let out, and its significant beneficial effect has been to improve the flood control standard of drainage system against rain, or stores overproof storm rainfall, has reduced the possibility of upstream area generation waterlogging ponding.
Below will combine accompanying drawing that the technique effect of design, concrete structure and the generation of the utility model is described further, with purpose, characteristic and the effect of understanding the utility model fully.
Description of drawings
Fig. 1 is the regulate and store structural representation of system of a kind of rainwater in the prior art.
Fig. 2 is the structural representation of drainage system against rain one specific embodiment of the utility model.
The specific embodiment
As shown in Figure 2, drainage system against rain one specific embodiment of the utility model comprises that a flow of inlet water is the upper reaches manhole of Q1, the downstream manhole that water flow is Q2, and the trunk line that connects.
The utility model is provided with a shallow-layer rainwater that the plays regulating action structure of regulating and storing with trunk line with being in parallel between upper reaches manhole and downstream manhole.Simultaneously, the utility model also has additional overflow weir 1 in the manhole of the existing upper reaches, in the manhole of the upper reaches, to form an overflow.The top flushes in the water inlet pipe pipe of the weir crest of this overflow weir 1 and upper reaches manhole, and the regulate and store water inlet pipe of structure of overflow and shallow-layer rainwater is connected.
This shallow-layer rainwater structure of regulating and storing can be the tubular type reservoir, or box culvert formula reservoir, and its water inlet pipe is got into by the regulate and store top of structure of shallow-layer rainwater, and its outlet pipe is derived by the regulate and store bottom of structure of shallow-layer rainwater.
In concrete design, the regulate and store flow of inlet water Q3 of structure of this shallow-layer rainwater is the flow of the design standard that surpasses existing system, and its water flow is Q4, and design Q4≤Q3.
Especially, as a kind of embodiment of optimization, the shallow-layer rainwater structure of regulating and storing can be arranged on the middle part of existing drainage system against rain or play the end.Preferably, can be arranged in the greenbelt of housing estate, town road.
In various embodiment,, a plurality of above-mentioned shallow-layer rainwater structure of regulating and storing can be set also in drainage system against rain according to the adjustment of flood control standard and the requirement of construction environment.
For newly-built drainage system against rain; Owing to adopted the regulate and store drainage system against rain of structure of this band shallow-layer; To be stored in shallow-layer from the peak flood flow that is higher than design standard at the upper reaches regulates and stores in the structure; Treat to be disposed to downstream again after rainfall intensity reduces, so can reduce the design caliber of downstream drainage system against rain.
For the drainage system against rain that has built up, can increase at the key node place this shallow-layer rainwater structure of regulating and storing is set, with the flood control standard of the drainage system against rain that improves upstream region.
More than describe the preferred embodiment of the utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variation according to the design of the utility model.Therefore, all technician in the art according to the design of the utility model on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in determined protection domain by claims.
Claims (5)
1. one kind with the regulate and store drainage system against rain of structure of shallow-layer rainwater, comprises upper reaches manhole, downstream manhole at least, and the trunk line that connects; It is characterized in that: the parallelly connected shallow-layer rainwater structure of regulating and storing that is provided with between said upper reaches manhole and said downstream manhole; Also be provided with overflow weir in the manhole of the said upper reaches to form overflow; The weir crest of said overflow weir flushes with the interior top of the water inlet pipe pipe of said upper reaches manhole; The said shallow-layer rainwater water inlet pipe of structure of regulating and storing is communicated with said overflow in the manhole of the said upper reaches, and the regulate and store outlet pipe of structure of said shallow-layer rainwater is communicated with said downstream manhole.
2. drainage system against rain as claimed in claim 1 is characterized in that: the said shallow-layer rainwater structure of regulating and storing is tubular type reservoir or box culvert formula reservoir.
3. drainage system against rain as claimed in claim 1 is characterized in that: be provided with a plurality of shallow-layer rainwater structure of regulating and storing in the said drainage system against rain.
4. like claim 1 or 2 or 3 described drainage system against rain; It is characterized in that: the regulate and store water inlet pipe of structure of said shallow-layer rainwater is got into by the regulate and store top of structure of said shallow-layer rainwater, and the regulate and store outlet pipe of structure of said shallow-layer rainwater is derived by the regulate and store bottom of structure of said shallow-layer rainwater.
5. like claim 1 or 2 or 3 described drainage system against rain, it is characterized in that: the said shallow-layer rainwater structure of regulating and storing is arranged on the middle part of existing drainage system against rain or plays the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203381628U CN202202394U (en) | 2011-09-09 | 2011-09-09 | Rainwater drainage system with shallow rainwater adjusting storing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203381628U CN202202394U (en) | 2011-09-09 | 2011-09-09 | Rainwater drainage system with shallow rainwater adjusting storing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202202394U true CN202202394U (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203381628U Withdrawn - After Issue CN202202394U (en) | 2011-09-09 | 2011-09-09 | Rainwater drainage system with shallow rainwater adjusting storing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202202394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409747A (en) * | 2011-09-09 | 2012-04-11 | 上海市城市建设设计研究院 | Rainwater drainage system with shallow rainwater storage adjusting structure |
| CN110984344A (en) * | 2019-11-29 | 2020-04-10 | 中国中建设计集团有限公司 | Anti-overflow device and method for drainage inspection well |
-
2011
- 2011-09-09 CN CN2011203381628U patent/CN202202394U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409747A (en) * | 2011-09-09 | 2012-04-11 | 上海市城市建设设计研究院 | Rainwater drainage system with shallow rainwater storage adjusting structure |
| CN102409747B (en) * | 2011-09-09 | 2013-12-18 | 上海市城市建设设计研究院 | Rainwater drainage system with shallow rainwater storage adjusting structure |
| CN110984344A (en) * | 2019-11-29 | 2020-04-10 | 中国中建设计集团有限公司 | Anti-overflow device and method for drainage inspection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120425 Effective date of abandoning: 20131218 |
|
| RGAV | Abandon patent right to avoid regrant |